Merge tag 'v3.0-rc4' of /pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-linus

39 files changed, 2996 insertions, 6861 deletions

diff --git a/drivers/staging/gma500/Makefile b/drivers/staging/gma500/Makefile
index a52ba48be518..db73ec6d8128 100644
--- a/drivers/staging/gma500/Makefile
+++ b/drivers/staging/gma500/Makefile
@@ -5,6 +5,7 @@ ccflags-y += -Iinclude/drm
 
 psb_gfx-y += psb_bl.o \
 	  psb_drv.o \
+	  psb_gem.o \
 	  psb_fb.o \
 	  psb_2d.o \
 	  psb_gtt.o \
@@ -15,17 +16,11 @@ psb_gfx-y += psb_bl.o \
 	  psb_intel_lvds.o \
 	  psb_intel_modes.o \
 	  psb_intel_sdvo.o \
-	  psb_reset.o \
-	  psb_sgx.o \
-	  psb_pvr_glue.o \
-	  psb_buffer.o \
-	  psb_fence.o \
+	  psb_lid.o \
 	  psb_mmu.o \
-	  psb_ttm_glue.o \
-	  psb_ttm_fence.o \
-	  psb_ttm_fence_user.o \
-	  psb_ttm_placement_user.o \
 	  psb_powermgmt.o \
-	  psb_irq.o
+	  psb_irq.o \
+	  mrst_crtc.o \
+	  mrst_lvds.o
 
 obj-$(CONFIG_DRM_PSB) += psb_gfx.o
diff --git a/drivers/staging/gma500/mrst.h b/drivers/staging/gma500/mrst.h
new file mode 100644
index 000000000000..5e4aaeb3711b
--- /dev/null
+++ b/drivers/staging/gma500/mrst.h
@@ -0,0 +1,217 @@
+/**************************************************************************
+ * Copyright (c) 2007-2011, Intel Corporation.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ **************************************************************************/
+
+/* MID device specific descriptors */
+
+struct mrst_vbt {
+	s8 signature[4];	/*4 bytes,"$GCT" */
+	u8 revision;
+	u8 size;
+	u8 checksum;
+	void *mrst_gct;
+} __attribute__ ((packed));
+
+struct mrst_timing_info {
+	u16 pixel_clock;
+	u8 hactive_lo;
+	u8 hblank_lo;
+	u8 hblank_hi:4;
+	u8 hactive_hi:4;
+	u8 vactive_lo;
+	u8 vblank_lo;
+	u8 vblank_hi:4;
+	u8 vactive_hi:4;
+	u8 hsync_offset_lo;
+	u8 hsync_pulse_width_lo;
+	u8 vsync_pulse_width_lo:4;
+	u8 vsync_offset_lo:4;
+	u8 vsync_pulse_width_hi:2;
+	u8 vsync_offset_hi:2;
+	u8 hsync_pulse_width_hi:2;
+	u8 hsync_offset_hi:2;
+	u8 width_mm_lo;
+	u8 height_mm_lo;
+	u8 height_mm_hi:4;
+	u8 width_mm_hi:4;
+	u8 hborder;
+	u8 vborder;
+	u8 unknown0:1;
+	u8 hsync_positive:1;
+	u8 vsync_positive:1;
+	u8 separate_sync:2;
+	u8 stereo:1;
+	u8 unknown6:1;
+	u8 interlaced:1;
+} __attribute__((packed));
+
+struct gct_r10_timing_info {
+	u16 pixel_clock;
+	u32 hactive_lo:8;
+	u32 hactive_hi:4;
+	u32 hblank_lo:8;
+	u32 hblank_hi:4;
+	u32 hsync_offset_lo:8;
+	u16 hsync_offset_hi:2;
+	u16 hsync_pulse_width_lo:8;
+	u16 hsync_pulse_width_hi:2;
+	u16 hsync_positive:1;
+	u16 rsvd_1:3;
+	u8  vactive_lo:8;
+	u16 vactive_hi:4;
+	u16 vblank_lo:8;
+	u16 vblank_hi:4;
+	u16 vsync_offset_lo:4;
+	u16 vsync_offset_hi:2;
+	u16 vsync_pulse_width_lo:4;
+	u16 vsync_pulse_width_hi:2;
+	u16 vsync_positive:1;
+	u16 rsvd_2:3;
+} __attribute__((packed));
+
+struct mrst_panel_descriptor_v1 {
+	u32 Panel_Port_Control; /* 1 dword, Register 0x61180 if LVDS */
+				/* 0x61190 if MIPI */
+	u32 Panel_Power_On_Sequencing;/*1 dword,Register 0x61208,*/
+	u32 Panel_Power_Off_Sequencing;/*1 dword,Register 0x6120C,*/
+	u32 Panel_Power_Cycle_Delay_and_Reference_Divisor;/* 1 dword */
+						/* Register 0x61210 */
+	struct mrst_timing_info DTD;/*18 bytes, Standard definition */
+	u16 Panel_Backlight_Inverter_Descriptor;/* 16 bits, as follows */
+				/* Bit 0, Frequency, 15 bits,0 - 32767Hz */
+			/* Bit 15, Polarity, 1 bit, 0: Normal, 1: Inverted */
+	u16 Panel_MIPI_Display_Descriptor;
+			/*16 bits, Defined as follows: */
+			/* if MIPI, 0x0000 if LVDS */
+			/* Bit 0, Type, 2 bits, */
+			/* 0: Type-1, */
+			/* 1: Type-2, */
+			/* 2: Type-3, */
+			/* 3: Type-4 */
+			/* Bit 2, Pixel Format, 4 bits */
+			/* Bit0: 16bpp (not supported in LNC), */
+			/* Bit1: 18bpp loosely packed, */
+			/* Bit2: 18bpp packed, */
+			/* Bit3: 24bpp */
+			/* Bit 6, Reserved, 2 bits, 00b */
+			/* Bit 8, Minimum Supported Frame Rate, 6 bits, 0 - 63Hz */
+			/* Bit 14, Reserved, 2 bits, 00b */
+} __attribute__ ((packed));
+
+struct mrst_panel_descriptor_v2 {
+	u32 Panel_Port_Control; /* 1 dword, Register 0x61180 if LVDS */
+				/* 0x61190 if MIPI */
+	u32 Panel_Power_On_Sequencing;/*1 dword,Register 0x61208,*/
+	u32 Panel_Power_Off_Sequencing;/*1 dword,Register 0x6120C,*/
+	u8 Panel_Power_Cycle_Delay_and_Reference_Divisor;/* 1 byte */
+						/* Register 0x61210 */
+	struct mrst_timing_info DTD;/*18 bytes, Standard definition */
+	u16 Panel_Backlight_Inverter_Descriptor;/*16 bits, as follows*/
+				/*Bit 0, Frequency, 16 bits, 0 - 32767Hz*/
+	u8 Panel_Initial_Brightness;/* [7:0] 0 - 100% */
+			/*Bit 7, Polarity, 1 bit,0: Normal, 1: Inverted*/
+	u16 Panel_MIPI_Display_Descriptor;
+			/*16 bits, Defined as follows: */
+			/* if MIPI, 0x0000 if LVDS */
+			/* Bit 0, Type, 2 bits, */
+			/* 0: Type-1, */
+			/* 1: Type-2, */
+			/* 2: Type-3, */
+			/* 3: Type-4 */
+			/* Bit 2, Pixel Format, 4 bits */
+			/* Bit0: 16bpp (not supported in LNC), */
+			/* Bit1: 18bpp loosely packed, */
+			/* Bit2: 18bpp packed, */
+			/* Bit3: 24bpp */
+			/* Bit 6, Reserved, 2 bits, 00b */
+			/* Bit 8, Minimum Supported Frame Rate, 6 bits, 0 - 63Hz */
+			/* Bit 14, Reserved, 2 bits, 00b */
+} __attribute__ ((packed));
+
+union mrst_panel_rx {
+	struct{
+		u16 NumberOfLanes:2; /*Num of Lanes, 2 bits,0 = 1 lane,*/
+			/* 1 = 2 lanes, 2 = 3 lanes, 3 = 4 lanes. */
+		u16 MaxLaneFreq:3; /* 0: 100MHz, 1: 200MHz, 2: 300MHz, */
+		/*3: 400MHz, 4: 500MHz, 5: 600MHz, 6: 700MHz, 7: 800MHz.*/
+		u16 SupportedVideoTransferMode:2; /*0: Non-burst only */
+					/* 1: Burst and non-burst */
+					/* 2/3: Reserved */
+		u16 HSClkBehavior:1; /*0: Continuous, 1: Non-continuous*/
+		u16 DuoDisplaySupport:1; /*1 bit,0: No, 1: Yes*/
+		u16 ECC_ChecksumCapabilities:1;/*1 bit,0: No, 1: Yes*/
+		u16 BidirectionalCommunication:1;/*1 bit,0: No, 1: Yes */
+		u16 Rsvd:5;/*5 bits,00000b */
+	} panelrx;
+	u16 panel_receiver;
+} __attribute__ ((packed));
+
+struct mrst_gct_v1 {
+	union{ /*8 bits,Defined as follows: */
+		struct {
+			u8 PanelType:4; /*4 bits, Bit field for panels*/
+					/* 0 - 3: 0 = LVDS, 1 = MIPI*/
+					/*2 bits,Specifies which of the*/
+			u8 BootPanelIndex:2;
+					/* 4 panels to use by default*/
+			u8 BootMIPI_DSI_RxIndex:2;/*Specifies which of*/
+					/* the 4 MIPI DSI receivers to use*/
+		} PD;
+		u8 PanelDescriptor;
+	};
+	struct mrst_panel_descriptor_v1 panel[4];/*panel descrs,38 bytes each*/
+	union mrst_panel_rx panelrx[4]; /* panel receivers*/
+} __attribute__ ((packed));
+
+struct mrst_gct_v2 {
+	union{ /*8 bits,Defined as follows: */
+		struct {
+			u8 PanelType:4; /*4 bits, Bit field for panels*/
+					/* 0 - 3: 0 = LVDS, 1 = MIPI*/
+					/*2 bits,Specifies which of the*/
+			u8 BootPanelIndex:2;
+					/* 4 panels to use by default*/
+			u8 BootMIPI_DSI_RxIndex:2;/*Specifies which of*/
+					/* the 4 MIPI DSI receivers to use*/
+		} PD;
+		u8 PanelDescriptor;
+	};
+	struct mrst_panel_descriptor_v2 panel[4];/*panel descrs,38 bytes each*/
+	union mrst_panel_rx panelrx[4]; /* panel receivers*/
+} __attribute__ ((packed));
+
+struct mrst_gct_data {
+	u8 bpi; /* boot panel index, number of panel used during boot */
+	u8 pt; /* panel type, 4 bit field, 0=lvds, 1=mipi */
+	struct mrst_timing_info DTD; /* timing info for the selected panel */
+	u32 Panel_Port_Control;
+	u32 PP_On_Sequencing;/*1 dword,Register 0x61208,*/
+	u32 PP_Off_Sequencing;/*1 dword,Register 0x6120C,*/
+	u32 PP_Cycle_Delay;
+	u16 Panel_Backlight_Inverter_Descriptor;
+	u16 Panel_MIPI_Display_Descriptor;
+} __attribute__ ((packed));
+
+#define MODE_SETTING_IN_CRTC 	0x1
+#define MODE_SETTING_IN_ENCODER 0x2
+#define MODE_SETTING_ON_GOING 	0x3
+#define MODE_SETTING_IN_DSR 	0x4
+#define MODE_SETTING_ENCODER_DONE 0x8
+#define GCT_R10_HEADER_SIZE	16
+#define GCT_R10_DISPLAY_DESC_SIZE	28
+
diff --git a/drivers/staging/gma500/mrst_crtc.c b/drivers/staging/gma500/mrst_crtc.c
new file mode 100644
index 000000000000..e4a0c033b5b2
--- /dev/null
+++ b/drivers/staging/gma500/mrst_crtc.c
@@ -0,0 +1,619 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <linux/i2c.h>
+#include <linux/pm_runtime.h>
+
+#include <drm/drmP.h>
+#include "psb_fb.h"
+#include "psb_drv.h"
+#include "psb_intel_drv.h"
+#include "psb_intel_reg.h"
+#include "psb_intel_display.h"
+#include "psb_powermgmt.h"
+
+struct psb_intel_range_t {
+	int min, max;
+};
+
+struct mrst_limit_t {
+	struct psb_intel_range_t dot, m, p1;
+};
+
+struct mrst_clock_t {
+	/* derived values */
+	int dot;
+	int m;
+	int p1;
+};
+
+#define MRST_LIMIT_LVDS_100L	    0
+#define MRST_LIMIT_LVDS_83	    1
+#define MRST_LIMIT_LVDS_100	    2
+
+#define MRST_DOT_MIN		  19750
+#define MRST_DOT_MAX		  120000
+#define MRST_M_MIN_100L		    20
+#define MRST_M_MIN_100		    10
+#define MRST_M_MIN_83		    12
+#define MRST_M_MAX_100L		    34
+#define MRST_M_MAX_100		    17
+#define MRST_M_MAX_83		    20
+#define MRST_P1_MIN		    2
+#define MRST_P1_MAX_0		    7
+#define MRST_P1_MAX_1		    8
+
+static const struct mrst_limit_t mrst_limits[] = {
+	{			/* MRST_LIMIT_LVDS_100L */
+	 .dot = {.min = MRST_DOT_MIN, .max = MRST_DOT_MAX},
+	 .m = {.min = MRST_M_MIN_100L, .max = MRST_M_MAX_100L},
+	 .p1 = {.min = MRST_P1_MIN, .max = MRST_P1_MAX_1},
+	 },
+	{			/* MRST_LIMIT_LVDS_83L */
+	 .dot = {.min = MRST_DOT_MIN, .max = MRST_DOT_MAX},
+	 .m = {.min = MRST_M_MIN_83, .max = MRST_M_MAX_83},
+	 .p1 = {.min = MRST_P1_MIN, .max = MRST_P1_MAX_0},
+	 },
+	{			/* MRST_LIMIT_LVDS_100 */
+	 .dot = {.min = MRST_DOT_MIN, .max = MRST_DOT_MAX},
+	 .m = {.min = MRST_M_MIN_100, .max = MRST_M_MAX_100},
+	 .p1 = {.min = MRST_P1_MIN, .max = MRST_P1_MAX_1},
+	 },
+};
+
+#define MRST_M_MIN	    10
+static const u32 mrst_m_converts[] = {
+	0x2B, 0x15, 0x2A, 0x35, 0x1A, 0x0D, 0x26, 0x33, 0x19, 0x2C,
+	0x36, 0x3B, 0x1D, 0x2E, 0x37, 0x1B, 0x2D, 0x16, 0x0B, 0x25,
+	0x12, 0x09, 0x24, 0x32, 0x39, 0x1c,
+};
+
+static const struct mrst_limit_t *mrst_limit(struct drm_crtc *crtc)
+{
+	const struct mrst_limit_t *limit = NULL;
+	struct drm_device *dev = crtc->dev;
+	DRM_DRIVER_PRIVATE_T *dev_priv = dev->dev_private;
+
+	if (psb_intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)
+	    || psb_intel_pipe_has_type(crtc, INTEL_OUTPUT_MIPI)) {
+		switch (dev_priv->core_freq) {
+		case 100:
+			limit = &mrst_limits[MRST_LIMIT_LVDS_100L];
+			break;
+		case 166:
+			limit = &mrst_limits[MRST_LIMIT_LVDS_83];
+			break;
+		case 200:
+			limit = &mrst_limits[MRST_LIMIT_LVDS_100];
+			break;
+		}
+	} else {
+		limit = NULL;
+		PSB_DEBUG_ENTRY("mrst_limit Wrong display type.\n");
+	}
+
+	return limit;
+}
+
+/** Derive the pixel clock for the given refclk and divisors for 8xx chips. */
+static void mrst_clock(int refclk, struct mrst_clock_t *clock)
+{
+	clock->dot = (refclk * clock->m) / (14 * clock->p1);
+}
+
+void mrstPrintPll(char *prefix, struct mrst_clock_t *clock)
+{
+	PSB_DEBUG_ENTRY("%s: dotclock = %d,  m = %d, p1 = %d.\n",
+	     prefix, clock->dot, clock->m, clock->p1);
+}
+
+/**
+ * Returns a set of divisors for the desired target clock with the given refclk,
+ * or FALSE.  Divisor values are the actual divisors for
+ */
+static bool
+mrstFindBestPLL(struct drm_crtc *crtc, int target, int refclk,
+		struct mrst_clock_t *best_clock)
+{
+	struct mrst_clock_t clock;
+	const struct mrst_limit_t *limit = mrst_limit(crtc);
+	int err = target;
+
+	memset(best_clock, 0, sizeof(*best_clock));
+
+	for (clock.m = limit->m.min; clock.m <= limit->m.max; clock.m++) {
+		for (clock.p1 = limit->p1.min; clock.p1 <= limit->p1.max;
+		     clock.p1++) {
+			int this_err;
+
+			mrst_clock(refclk, &clock);
+
+			this_err = abs(clock.dot - target);
+			if (this_err < err) {
+				*best_clock = clock;
+				err = this_err;
+			}
+		}
+	}
+	DRM_DEBUG("mrstFindBestPLL err = %d.\n", err);
+
+	return err != target;
+}
+
+/**
+ * Sets the power management mode of the pipe and plane.
+ *
+ * This code should probably grow support for turning the cursor off and back
+ * on appropriately at the same time as we're turning the pipe off/on.
+ */
+static void mrst_crtc_dpms(struct drm_crtc *crtc, int mode)
+{
+	struct drm_device *dev = crtc->dev;
+	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+	int pipe = psb_intel_crtc->pipe;
+	int dpll_reg = (pipe == 0) ? MRST_DPLL_A : DPLL_B;
+	int dspcntr_reg = (pipe == 0) ? DSPACNTR : DSPBCNTR;
+	int dspbase_reg = (pipe == 0) ? MRST_DSPABASE : DSPBBASE;
+	int pipeconf_reg = (pipe == 0) ? PIPEACONF : PIPEBCONF;
+	u32 temp;
+	bool enabled;
+
+	PSB_DEBUG_ENTRY("mode = %d, pipe = %d\n", mode, pipe);
+
+	if (!gma_power_begin(dev, true))
+		return;
+
+	/* XXX: When our outputs are all unaware of DPMS modes other than off
+	 * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC.
+	 */
+	switch (mode) {
+	case DRM_MODE_DPMS_ON:
+	case DRM_MODE_DPMS_STANDBY:
+	case DRM_MODE_DPMS_SUSPEND:
+		/* Enable the DPLL */
+		temp = REG_READ(dpll_reg);
+		if ((temp & DPLL_VCO_ENABLE) == 0) {
+			REG_WRITE(dpll_reg, temp);
+			REG_READ(dpll_reg);
+			/* Wait for the clocks to stabilize. */
+			udelay(150);
+			REG_WRITE(dpll_reg, temp | DPLL_VCO_ENABLE);
+			REG_READ(dpll_reg);
+			/* Wait for the clocks to stabilize. */
+			udelay(150);
+			REG_WRITE(dpll_reg, temp | DPLL_VCO_ENABLE);
+			REG_READ(dpll_reg);
+			/* Wait for the clocks to stabilize. */
+			udelay(150);
+		}
+		/* Enable the pipe */
+		temp = REG_READ(pipeconf_reg);
+		if ((temp & PIPEACONF_ENABLE) == 0)
+			REG_WRITE(pipeconf_reg, temp | PIPEACONF_ENABLE);
+		/* Enable the plane */
+		temp = REG_READ(dspcntr_reg);
+		if ((temp & DISPLAY_PLANE_ENABLE) == 0) {
+			REG_WRITE(dspcntr_reg,
+				  temp | DISPLAY_PLANE_ENABLE);
+			/* Flush the plane changes */
+			REG_WRITE(dspbase_reg, REG_READ(dspbase_reg));
+		}
+
+		psb_intel_crtc_load_lut(crtc);
+
+		/* Give the overlay scaler a chance to enable
+		   if it's on this pipe */
+		/* psb_intel_crtc_dpms_video(crtc, true); TODO */
+		break;
+	case DRM_MODE_DPMS_OFF:
+		/* Give the overlay scaler a chance to disable
+		 * if it's on this pipe */
+		/* psb_intel_crtc_dpms_video(crtc, FALSE); TODO */
+
+		/* Disable the VGA plane that we never use */
+		REG_WRITE(VGACNTRL, VGA_DISP_DISABLE);
+		/* Disable display plane */
+		temp = REG_READ(dspcntr_reg);
+		if ((temp & DISPLAY_PLANE_ENABLE) != 0) {
+			REG_WRITE(dspcntr_reg,
+				  temp & ~DISPLAY_PLANE_ENABLE);
+			/* Flush the plane changes */
+			REG_WRITE(dspbase_reg, REG_READ(dspbase_reg));
+			REG_READ(dspbase_reg);
+		}
+
+		/* Next, disable display pipes */
+		temp = REG_READ(pipeconf_reg);
+		if ((temp & PIPEACONF_ENABLE) != 0) {
+			REG_WRITE(pipeconf_reg, temp & ~PIPEACONF_ENABLE);
+			REG_READ(pipeconf_reg);
+		}
+		/* Wait for for the pipe disable to take effect. */
+		psb_intel_wait_for_vblank(dev);
+
+		temp = REG_READ(dpll_reg);
+		if ((temp & DPLL_VCO_ENABLE) != 0) {
+			REG_WRITE(dpll_reg, temp & ~DPLL_VCO_ENABLE);
+			REG_READ(dpll_reg);
+		}
+
+		/* Wait for the clocks to turn off. */
+		udelay(150);
+		break;
+	}
+
+	enabled = crtc->enabled && mode != DRM_MODE_DPMS_OFF;
+
+	/*Set FIFO Watermarks*/
+	REG_WRITE(DSPARB, 0x3FFF);
+	REG_WRITE(DSPFW1, 0x3F88080A);
+	REG_WRITE(DSPFW2, 0x0b060808);
+	REG_WRITE(DSPFW3, 0x0);
+	REG_WRITE(DSPFW4, 0x08030404);
+	REG_WRITE(DSPFW5, 0x04040404);
+	REG_WRITE(DSPFW6, 0x78);
+	REG_WRITE(0x70400, REG_READ(0x70400) | 0x4000);
+	/* Must write Bit 14 of the Chicken Bit Register */
+
+	gma_power_end(dev);
+}
+
+/**
+ * Return the pipe currently connected to the panel fitter,
+ * or -1 if the panel fitter is not present or not in use
+ */
+static int mrst_panel_fitter_pipe(struct drm_device *dev)
+{
+	u32 pfit_control;
+
+	pfit_control = REG_READ(PFIT_CONTROL);
+
+	/* See if the panel fitter is in use */
+	if ((pfit_control & PFIT_ENABLE) == 0)
+		return -1;
+	return (pfit_control >> 29) & 3;
+}
+
+static int mrst_crtc_mode_set(struct drm_crtc *crtc,
+			      struct drm_display_mode *mode,
+			      struct drm_display_mode *adjusted_mode,
+			      int x, int y,
+			      struct drm_framebuffer *old_fb)
+{
+	struct drm_device *dev = crtc->dev;
+	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+	DRM_DRIVER_PRIVATE_T *dev_priv = dev->dev_private;
+	int pipe = psb_intel_crtc->pipe;
+	int fp_reg = (pipe == 0) ? MRST_FPA0 : FPB0;
+	int dpll_reg = (pipe == 0) ? MRST_DPLL_A : DPLL_B;
+	int dspcntr_reg = (pipe == 0) ? DSPACNTR : DSPBCNTR;
+	int pipeconf_reg = (pipe == 0) ? PIPEACONF : PIPEBCONF;
+	int htot_reg = (pipe == 0) ? HTOTAL_A : HTOTAL_B;
+	int hblank_reg = (pipe == 0) ? HBLANK_A : HBLANK_B;
+	int hsync_reg = (pipe == 0) ? HSYNC_A : HSYNC_B;
+	int vtot_reg = (pipe == 0) ? VTOTAL_A : VTOTAL_B;
+	int vblank_reg = (pipe == 0) ? VBLANK_A : VBLANK_B;
+	int vsync_reg = (pipe == 0) ? VSYNC_A : VSYNC_B;
+	int pipesrc_reg = (pipe == 0) ? PIPEASRC : PIPEBSRC;
+	int refclk = 0;
+	struct mrst_clock_t clock;
+	u32 dpll = 0, fp = 0, dspcntr, pipeconf;
+	bool ok, is_sdvo = false;
+	bool is_crt = false, is_lvds = false, is_tv = false;
+	bool is_mipi = false;
+	struct drm_mode_config *mode_config = &dev->mode_config;
+	struct psb_intel_output *psb_intel_output = NULL;
+	uint64_t scalingType = DRM_MODE_SCALE_FULLSCREEN;
+	struct drm_encoder *encoder;
+
+	PSB_DEBUG_ENTRY("pipe = 0x%x\n", pipe);
+
+	if (!gma_power_begin(dev, true))
+		return 0;
+
+	memcpy(&psb_intel_crtc->saved_mode,
+		mode,
+		sizeof(struct drm_display_mode));
+	memcpy(&psb_intel_crtc->saved_adjusted_mode,
+		adjusted_mode,
+		sizeof(struct drm_display_mode));
+
+	list_for_each_entry(encoder, &mode_config->encoder_list, head) {
+
+		if (encoder->crtc != crtc)
+			continue;
+
+		psb_intel_output = enc_to_psb_intel_output(encoder);
+		switch (psb_intel_output->type) {
+		case INTEL_OUTPUT_LVDS:
+			is_lvds = true;
+			break;
+		case INTEL_OUTPUT_SDVO:
+			is_sdvo = true;
+			break;
+		case INTEL_OUTPUT_TVOUT:
+			is_tv = true;
+			break;
+		case INTEL_OUTPUT_ANALOG:
+			is_crt = true;
+			break;
+		case INTEL_OUTPUT_MIPI:
+			is_mipi = true;
+			break;
+		}
+	}
+
+	/* Disable the VGA plane that we never use */
+	REG_WRITE(VGACNTRL, VGA_DISP_DISABLE);
+
+	/* Disable the panel fitter if it was on our pipe */
+	if (mrst_panel_fitter_pipe(dev) == pipe)
+		REG_WRITE(PFIT_CONTROL, 0);
+
+	REG_WRITE(pipesrc_reg,
+		  ((mode->crtc_hdisplay - 1) << 16) |
+		  (mode->crtc_vdisplay - 1));
+
+	if (psb_intel_output)
+		drm_connector_property_get_value(&psb_intel_output->base,
+			dev->mode_config.scaling_mode_property, &scalingType);
+
+	if (scalingType == DRM_MODE_SCALE_NO_SCALE) {
+		/* Moorestown doesn't have register support for centering so
+		 * we need to mess with the h/vblank and h/vsync start and
+		 * ends to get centering */
+		int offsetX = 0, offsetY = 0;
+
+		offsetX = (adjusted_mode->crtc_hdisplay -
+			   mode->crtc_hdisplay) / 2;
+		offsetY = (adjusted_mode->crtc_vdisplay -
+			   mode->crtc_vdisplay) / 2;
+
+		REG_WRITE(htot_reg, (mode->crtc_hdisplay - 1) |
+			((adjusted_mode->crtc_htotal - 1) << 16));
+		REG_WRITE(vtot_reg, (mode->crtc_vdisplay - 1) |
+			((adjusted_mode->crtc_vtotal - 1) << 16));
+		REG_WRITE(hblank_reg,
+			(adjusted_mode->crtc_hblank_start - offsetX - 1) |
+			((adjusted_mode->crtc_hblank_end - offsetX - 1) << 16));
+		REG_WRITE(hsync_reg,
+			(adjusted_mode->crtc_hsync_start - offsetX - 1) |
+			((adjusted_mode->crtc_hsync_end - offsetX - 1) << 16));
+		REG_WRITE(vblank_reg,
+			(adjusted_mode->crtc_vblank_start - offsetY - 1) |
+			((adjusted_mode->crtc_vblank_end - offsetY - 1) << 16));
+		REG_WRITE(vsync_reg,
+			(adjusted_mode->crtc_vsync_start - offsetY - 1) |
+			((adjusted_mode->crtc_vsync_end - offsetY - 1) << 16));
+	} else {
+		REG_WRITE(htot_reg, (adjusted_mode->crtc_hdisplay - 1) |
+			((adjusted_mode->crtc_htotal - 1) << 16));
+		REG_WRITE(vtot_reg, (adjusted_mode->crtc_vdisplay - 1) |
+			((adjusted_mode->crtc_vtotal - 1) << 16));
+		REG_WRITE(hblank_reg, (adjusted_mode->crtc_hblank_start - 1) |
+			((adjusted_mode->crtc_hblank_end - 1) << 16));
+		REG_WRITE(hsync_reg, (adjusted_mode->crtc_hsync_start - 1) |
+			((adjusted_mode->crtc_hsync_end - 1) << 16));
+		REG_WRITE(vblank_reg, (adjusted_mode->crtc_vblank_start - 1) |
+			((adjusted_mode->crtc_vblank_end - 1) << 16));
+		REG_WRITE(vsync_reg, (adjusted_mode->crtc_vsync_start - 1) |
+			((adjusted_mode->crtc_vsync_end - 1) << 16));
+	}
+
+	/* Flush the plane changes */
+	{
+		struct drm_crtc_helper_funcs *crtc_funcs =
+		    crtc->helper_private;
+		crtc_funcs->mode_set_base(crtc, x, y, old_fb);
+	}
+
+	/* setup pipeconf */
+	pipeconf = REG_READ(pipeconf_reg);
+
+	/* Set up the display plane register */
+	dspcntr = REG_READ(dspcntr_reg);
+	dspcntr |= DISPPLANE_GAMMA_ENABLE;
+
+	if (pipe == 0)
+		dspcntr |= DISPPLANE_SEL_PIPE_A;
+	else
+		dspcntr |= DISPPLANE_SEL_PIPE_B;
+
+	dev_priv->dspcntr = dspcntr |= DISPLAY_PLANE_ENABLE;
+	dev_priv->pipeconf = pipeconf |= PIPEACONF_ENABLE;
+
+	if (is_mipi)
+		goto mrst_crtc_mode_set_exit;
+
+	refclk = dev_priv->core_freq * 1000;
+
+	dpll = 0;		/*BIT16 = 0 for 100MHz reference */
+
+	ok = mrstFindBestPLL(crtc, adjusted_mode->clock, refclk, &clock);
+
+	if (!ok) {
+		PSB_DEBUG_ENTRY(
+			"mrstFindBestPLL fail in mrst_crtc_mode_set.\n");
+	} else {
+		PSB_DEBUG_ENTRY("mrst_crtc_mode_set pixel clock = %d,"
+			 "m = %x, p1 = %x.\n", clock.dot, clock.m,
+			 clock.p1);
+	}
+
+	fp = mrst_m_converts[(clock.m - MRST_M_MIN)] << 8;
+
+	dpll |= DPLL_VGA_MODE_DIS;
+
+
+	dpll |= DPLL_VCO_ENABLE;
+
+	if (is_lvds)
+		dpll |= DPLLA_MODE_LVDS;
+	else
+		dpll |= DPLLB_MODE_DAC_SERIAL;
+
+	if (is_sdvo) {
+		int sdvo_pixel_multiply =
+		    adjusted_mode->clock / mode->clock;
+
+		dpll |= DPLL_DVO_HIGH_SPEED;
+		dpll |=
+		    (sdvo_pixel_multiply -
+		     1) << SDVO_MULTIPLIER_SHIFT_HIRES;
+	}
+
+
+	/* compute bitmask from p1 value */
+	dpll |= (1 << (clock.p1 - 2)) << 17;
+
+	dpll |= DPLL_VCO_ENABLE;
+
+	mrstPrintPll("chosen", &clock);
+
+	if (dpll & DPLL_VCO_ENABLE) {
+		REG_WRITE(fp_reg, fp);
+		REG_WRITE(dpll_reg, dpll & ~DPLL_VCO_ENABLE);
+		REG_READ(dpll_reg);
+		/* Check the DPLLA lock bit PIPEACONF[29] */
+		udelay(150);
+	}
+
+	REG_WRITE(fp_reg, fp);
+	REG_WRITE(dpll_reg, dpll);
+	REG_READ(dpll_reg);
+	/* Wait for the clocks to stabilize. */
+	udelay(150);
+
+	/* write it again -- the BIOS does, after all */
+	REG_WRITE(dpll_reg, dpll);
+	REG_READ(dpll_reg);
+	/* Wait for the clocks to stabilize. */
+	udelay(150);
+
+	REG_WRITE(pipeconf_reg, pipeconf);
+	REG_READ(pipeconf_reg);
+	psb_intel_wait_for_vblank(dev);
+
+	REG_WRITE(dspcntr_reg, dspcntr);
+	psb_intel_wait_for_vblank(dev);
+
+mrst_crtc_mode_set_exit:
+	gma_power_end(dev);
+	return 0;
+}
+
+static bool mrst_crtc_mode_fixup(struct drm_crtc *crtc,
+				  struct drm_display_mode *mode,
+				  struct drm_display_mode *adjusted_mode)
+{
+	return true;
+}
+
+int mrst_pipe_set_base(struct drm_crtc *crtc,
+			    int x, int y, struct drm_framebuffer *old_fb)
+{
+	struct drm_device *dev = crtc->dev;
+	/* struct drm_i915_master_private *master_priv; */
+	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+	struct psb_framebuffer *psbfb = to_psb_fb(crtc->fb);
+	int pipe = psb_intel_crtc->pipe;
+	unsigned long start, offset;
+	/* FIXME: check if we need this surely MRST is pipe 0 only */
+	int dspbase = (pipe == 0 ? DSPALINOFF : DSPBBASE);
+	int dspsurf = (pipe == 0 ? DSPASURF : DSPBSURF);
+	int dspstride = (pipe == 0) ? DSPASTRIDE : DSPBSTRIDE;
+	int dspcntr_reg = (pipe == 0) ? DSPACNTR : DSPBCNTR;
+	u32 dspcntr;
+	int ret = 0;
+
+	PSB_DEBUG_ENTRY("\n");
+
+	/* no fb bound */
+	if (!crtc->fb) {
+		DRM_DEBUG("No FB bound\n");
+		return 0;
+	}
+
+	if (!gma_power_begin(dev, true))
+		return 0;
+
+	start = psbfb->gtt->offset;
+	offset = y * crtc->fb->pitch + x * (crtc->fb->bits_per_pixel / 8);
+
+	REG_WRITE(dspstride, crtc->fb->pitch);
+
+	dspcntr = REG_READ(dspcntr_reg);
+	dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
+
+	switch (crtc->fb->bits_per_pixel) {
+	case 8:
+		dspcntr |= DISPPLANE_8BPP;
+		break;
+	case 16:
+		if (crtc->fb->depth == 15)
+			dspcntr |= DISPPLANE_15_16BPP;
+		else
+			dspcntr |= DISPPLANE_16BPP;
+		break;
+	case 24:
+	case 32:
+		dspcntr |= DISPPLANE_32BPP_NO_ALPHA;
+		break;
+	default:
+		DRM_ERROR("Unknown color depth\n");
+		ret = -EINVAL;
+		goto pipe_set_base_exit;
+	}
+	REG_WRITE(dspcntr_reg, dspcntr);
+
+	DRM_DEBUG("Writing base %08lX %08lX %d %d\n", start, offset, x, y);
+	if (0 /* FIXMEAC - check what PSB needs */) {
+		REG_WRITE(dspbase, offset);
+		REG_READ(dspbase);
+		REG_WRITE(dspsurf, start);
+		REG_READ(dspsurf);
+	} else {
+		REG_WRITE(dspbase, start + offset);
+		REG_READ(dspbase);
+	}
+
+pipe_set_base_exit:
+	gma_power_end(dev);
+	return ret;
+}
+
+static void mrst_crtc_prepare(struct drm_crtc *crtc)
+{
+	struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+	crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
+}
+
+static void mrst_crtc_commit(struct drm_crtc *crtc)
+{
+	struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+	crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON);
+}
+
+const struct drm_crtc_helper_funcs mrst_helper_funcs = {
+	.dpms = mrst_crtc_dpms,
+	.mode_fixup = mrst_crtc_mode_fixup,
+	.mode_set = mrst_crtc_mode_set,
+	.mode_set_base = mrst_pipe_set_base,
+	.prepare = mrst_crtc_prepare,
+	.commit = mrst_crtc_commit,
+};
+
diff --git a/drivers/staging/gma500/mrst_lvds.c b/drivers/staging/gma500/mrst_lvds.c
new file mode 100644
index 000000000000..4a08b74f5ff9
--- /dev/null
+++ b/drivers/staging/gma500/mrst_lvds.c
@@ -0,0 +1,371 @@
+/*
+ * Copyright © 2006-2009 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Authors:
+ *	Eric Anholt <eric@anholt.net>
+ *	Dave Airlie <airlied@linux.ie>
+ *	Jesse Barnes <jesse.barnes@intel.com>
+ */
+
+#include <linux/i2c.h>
+#include <drm/drmP.h>
+#include <asm/mrst.h>
+
+#include "psb_intel_bios.h"
+#include "psb_drv.h"
+#include "psb_intel_drv.h"
+#include "psb_intel_reg.h"
+#include "psb_powermgmt.h"
+#include <linux/pm_runtime.h>
+
+/* The max/min PWM frequency in BPCR[31:17] - */
+/* The smallest number is 1 (not 0) that can fit in the
+ * 15-bit field of the and then*/
+/* shifts to the left by one bit to get the actual 16-bit
+ * value that the 15-bits correspond to.*/
+#define MRST_BLC_MAX_PWM_REG_FREQ	    0xFFFF
+#define BRIGHTNESS_MAX_LEVEL 100
+
+/**
+ * Sets the power state for the panel.
+ */
+static void mrst_lvds_set_power(struct drm_device *dev,
+				struct psb_intel_output *output, bool on)
+{
+	u32 pp_status;
+	DRM_DRIVER_PRIVATE_T *dev_priv = dev->dev_private;
+	PSB_DEBUG_ENTRY("\n");
+
+	if (!gma_power_begin(dev, true))
+		return;
+
+	if (on) {
+		REG_WRITE(PP_CONTROL, REG_READ(PP_CONTROL) |
+			  POWER_TARGET_ON);
+		do {
+			pp_status = REG_READ(PP_STATUS);
+		} while ((pp_status & (PP_ON | PP_READY)) == PP_READY);
+		dev_priv->is_lvds_on = true;
+	} else {
+		REG_WRITE(PP_CONTROL, REG_READ(PP_CONTROL) &
+			  ~POWER_TARGET_ON);
+		do {
+			pp_status = REG_READ(PP_STATUS);
+		} while (pp_status & PP_ON);
+		dev_priv->is_lvds_on = false;
+		pm_request_idle(&dev->pdev->dev);
+	}
+
+	gma_power_end(dev);
+}
+
+static void mrst_lvds_dpms(struct drm_encoder *encoder, int mode)
+{
+	struct drm_device *dev = encoder->dev;
+	struct psb_intel_output *output = enc_to_psb_intel_output(encoder);
+
+	PSB_DEBUG_ENTRY("\n");
+
+	if (mode == DRM_MODE_DPMS_ON)
+		mrst_lvds_set_power(dev, output, true);
+	else
+		mrst_lvds_set_power(dev, output, false);
+
+	/* XXX: We never power down the LVDS pairs. */
+}
+
+static void mrst_lvds_mode_set(struct drm_encoder *encoder,
+			       struct drm_display_mode *mode,
+			       struct drm_display_mode *adjusted_mode)
+{
+	struct psb_intel_mode_device *mode_dev =
+				enc_to_psb_intel_output(encoder)->mode_dev;
+	struct drm_device *dev = encoder->dev;
+	u32 lvds_port;
+	uint64_t v = DRM_MODE_SCALE_FULLSCREEN;
+
+	PSB_DEBUG_ENTRY("\n");
+
+	if (!gma_power_begin(dev, true))
+		return;
+
+	/*
+	 * The LVDS pin pair will already have been turned on in the
+	 * psb_intel_crtc_mode_set since it has a large impact on the DPLL
+	 * settings.
+	 */
+	lvds_port = (REG_READ(LVDS) &
+		    (~LVDS_PIPEB_SELECT)) |
+		    LVDS_PORT_EN |
+		    LVDS_BORDER_EN;
+
+	if (mode_dev->panel_wants_dither)
+		lvds_port |= MRST_PANEL_8TO6_DITHER_ENABLE;
+
+	REG_WRITE(LVDS, lvds_port);
+
+	drm_connector_property_get_value(
+		&enc_to_psb_intel_output(encoder)->base,
+		dev->mode_config.scaling_mode_property,
+		&v);
+
+	if (v == DRM_MODE_SCALE_NO_SCALE)
+		REG_WRITE(PFIT_CONTROL, 0);
+	else if (v == DRM_MODE_SCALE_ASPECT) {
+		if ((mode->vdisplay != adjusted_mode->crtc_vdisplay) ||
+		    (mode->hdisplay != adjusted_mode->crtc_hdisplay)) {
+			if ((adjusted_mode->crtc_hdisplay * mode->vdisplay) ==
+			    (mode->hdisplay * adjusted_mode->crtc_vdisplay))
+				REG_WRITE(PFIT_CONTROL, PFIT_ENABLE);
+			else if ((adjusted_mode->crtc_hdisplay *
+				mode->vdisplay) > (mode->hdisplay *
+				adjusted_mode->crtc_vdisplay))
+				REG_WRITE(PFIT_CONTROL, PFIT_ENABLE |
+					  PFIT_SCALING_MODE_PILLARBOX);
+			else
+				REG_WRITE(PFIT_CONTROL, PFIT_ENABLE |
+					  PFIT_SCALING_MODE_LETTERBOX);
+		} else
+			REG_WRITE(PFIT_CONTROL, PFIT_ENABLE);
+	} else /*(v == DRM_MODE_SCALE_FULLSCREEN)*/
+		REG_WRITE(PFIT_CONTROL, PFIT_ENABLE);
+
+	gma_power_end(dev);
+}
+
+
+static const struct drm_encoder_helper_funcs mrst_lvds_helper_funcs = {
+	.dpms = mrst_lvds_dpms,
+	.mode_fixup = psb_intel_lvds_mode_fixup,
+	.prepare = psb_intel_lvds_prepare,
+	.mode_set = mrst_lvds_mode_set,
+	.commit = psb_intel_lvds_commit,
+};
+
+static struct drm_display_mode lvds_configuration_modes[] = {
+	/* hard coded fixed mode for TPO LTPS LPJ040K001A */
+	{ DRM_MODE("800x480",  DRM_MODE_TYPE_DRIVER, 33264, 800, 836,
+		   846, 1056, 0, 480, 489, 491, 525, 0, 0) },
+	/* hard coded fixed mode for LVDS 800x480 */
+	{ DRM_MODE("800x480",  DRM_MODE_TYPE_DRIVER, 30994, 800, 801,
+		   802, 1024, 0, 480, 481, 482, 525, 0, 0) },
+	/* hard coded fixed mode for Samsung 480wsvga LVDS 1024x600@75 */
+	{ DRM_MODE("1024x600", DRM_MODE_TYPE_DRIVER, 53990, 1024, 1072,
+		   1104, 1184, 0, 600, 603, 604, 608, 0, 0) },
+	/* hard coded fixed mode for Samsung 480wsvga LVDS 1024x600@75 */
+	{ DRM_MODE("1024x600", DRM_MODE_TYPE_DRIVER, 53990, 1024, 1104,
+		   1136, 1184, 0, 600, 603, 604, 608, 0, 0) },
+	/* hard coded fixed mode for Sharp wsvga LVDS 1024x600 */
+	{ DRM_MODE("1024x600", DRM_MODE_TYPE_DRIVER, 48885, 1024, 1124,
+		   1204, 1312, 0, 600, 607, 610, 621, 0, 0) },
+	/* hard coded fixed mode for LVDS 1024x768 */
+	{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
+		   1184, 1344, 0, 768, 771, 777, 806, 0, 0) },
+	/* hard coded fixed mode for LVDS 1366x768 */
+	{ DRM_MODE("1366x768", DRM_MODE_TYPE_DRIVER, 77500, 1366, 1430,
+		   1558, 1664, 0, 768, 769, 770, 776, 0, 0) },
+};
+
+/* Returns the panel fixed mode from configuration. */
+
+static struct drm_display_mode *
+mrst_lvds_get_configuration_mode(struct drm_device *dev)
+{
+	struct drm_display_mode *mode = NULL;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct mrst_timing_info *ti = &dev_priv->gct_data.DTD;
+
+	if (dev_priv->vbt_data.size != 0x00) { /*if non-zero, then use vbt*/
+		mode = kzalloc(sizeof(*mode), GFP_KERNEL);
+		if (!mode)
+			return NULL;
+
+		mode->hdisplay = (ti->hactive_hi << 8) | ti->hactive_lo;
+		mode->vdisplay = (ti->vactive_hi << 8) | ti->vactive_lo;
+		mode->hsync_start = mode->hdisplay + \
+				((ti->hsync_offset_hi << 8) | \
+				ti->hsync_offset_lo);
+		mode->hsync_end = mode->hsync_start + \
+				((ti->hsync_pulse_width_hi << 8) | \
+				ti->hsync_pulse_width_lo);
+		mode->htotal = mode->hdisplay + ((ti->hblank_hi << 8) | \
+							ti->hblank_lo);
+		mode->vsync_start = \
+			mode->vdisplay + ((ti->vsync_offset_hi << 4) | \
+						ti->vsync_offset_lo);
+		mode->vsync_end = \
+			mode->vsync_start + ((ti->vsync_pulse_width_hi << 4) | \
+						ti->vsync_pulse_width_lo);
+		mode->vtotal = mode->vdisplay + \
+				((ti->vblank_hi << 8) | ti->vblank_lo);
+		mode->clock = ti->pixel_clock * 10;
+#if 0
+		printk(KERN_INFO "hdisplay is %d\n", mode->hdisplay);
+		printk(KERN_INFO "vdisplay is %d\n", mode->vdisplay);
+		printk(KERN_INFO "HSS is %d\n", mode->hsync_start);
+		printk(KERN_INFO "HSE is %d\n", mode->hsync_end);
+		printk(KERN_INFO "htotal is %d\n", mode->htotal);
+		printk(KERN_INFO "VSS is %d\n", mode->vsync_start);
+		printk(KERN_INFO "VSE is %d\n", mode->vsync_end);
+		printk(KERN_INFO "vtotal is %d\n", mode->vtotal);
+		printk(KERN_INFO "clock is %d\n", mode->clock);
+#endif
+	} else
+		mode = drm_mode_duplicate(dev, &lvds_configuration_modes[2]);
+
+	drm_mode_set_name(mode);
+	drm_mode_set_crtcinfo(mode, 0);
+
+	return mode;
+}
+
+/**
+ * mrst_lvds_init - setup LVDS connectors on this device
+ * @dev: drm device
+ *
+ * Create the connector, register the LVDS DDC bus, and try to figure out what
+ * modes we can display on the LVDS panel (if present).
+ */
+void mrst_lvds_init(struct drm_device *dev,
+		    struct psb_intel_mode_device *mode_dev)
+{
+	struct psb_intel_output *psb_intel_output;
+	struct drm_connector *connector;
+	struct drm_encoder *encoder;
+	struct drm_psb_private *dev_priv =
+				(struct drm_psb_private *) dev->dev_private;
+	struct edid *edid;
+	int ret = 0;
+	struct i2c_adapter *i2c_adap;
+	struct drm_display_mode *scan;	/* *modes, *bios_mode; */
+
+	PSB_DEBUG_ENTRY("\n");
+
+	psb_intel_output = kzalloc(sizeof(struct psb_intel_output), GFP_KERNEL);
+	if (!psb_intel_output)
+		return;
+
+	psb_intel_output->mode_dev = mode_dev;
+	connector = &psb_intel_output->base;
+	encoder = &psb_intel_output->enc;
+	dev_priv->is_lvds_on = true;
+	drm_connector_init(dev, &psb_intel_output->base,
+			   &psb_intel_lvds_connector_funcs,
+			   DRM_MODE_CONNECTOR_LVDS);
+
+	drm_encoder_init(dev, &psb_intel_output->enc, &psb_intel_lvds_enc_funcs,
+			 DRM_MODE_ENCODER_LVDS);
+
+	drm_mode_connector_attach_encoder(&psb_intel_output->base,
+					  &psb_intel_output->enc);
+	psb_intel_output->type = INTEL_OUTPUT_LVDS;
+
+	drm_encoder_helper_add(encoder, &mrst_lvds_helper_funcs);
+	drm_connector_helper_add(connector,
+				 &psb_intel_lvds_connector_helper_funcs);
+	connector->display_info.subpixel_order = SubPixelHorizontalRGB;
+	connector->interlace_allowed = false;
+	connector->doublescan_allowed = false;
+
+	drm_connector_attach_property(connector,
+					dev->mode_config.scaling_mode_property,
+					DRM_MODE_SCALE_FULLSCREEN);
+	drm_connector_attach_property(connector,
+					dev_priv->backlight_property,
+					BRIGHTNESS_MAX_LEVEL);
+
+	mode_dev->panel_wants_dither = false;
+	if (dev_priv->vbt_data.size != 0x00)
+		mode_dev->panel_wants_dither = (dev_priv->gct_data.
+			Panel_Port_Control & MRST_PANEL_8TO6_DITHER_ENABLE);
+
+	/*
+	 * LVDS discovery:
+	 * 1) check for EDID on DDC
+	 * 2) check for VBT data
+	 * 3) check to see if LVDS is already on
+	 *    if none of the above, no panel
+	 * 4) make sure lid is open
+	 *    if closed, act like it's not there for now
+	 */
+
+	 /* This ifdef can go once the cpu ident stuff is cleaned up in arch */
+#if defined(CONFIG_X86_MRST)
+	if (mrst_identify_cpu())
+        	i2c_adap = i2c_get_adapter(2);
+        else	/* Oaktrail uses I2C 1 */
+#endif        
+        	i2c_adap = i2c_get_adapter(1);
+
+	if (i2c_adap == NULL)
+		printk(KERN_ALERT "No ddc adapter available!\n");
+	/*
+	 * Attempt to get the fixed panel mode from DDC.  Assume that the
+	 * preferred mode is the right one.
+	 */
+	if (i2c_adap) {
+		edid = drm_get_edid(connector, i2c_adap);
+		if (edid) {
+			drm_mode_connector_update_edid_property(connector,
+									edid);
+			ret = drm_add_edid_modes(connector, edid);
+			kfree(edid);
+		}
+
+		list_for_each_entry(scan, &connector->probed_modes, head) {
+			if (scan->type & DRM_MODE_TYPE_PREFERRED) {
+				mode_dev->panel_fixed_mode =
+				    drm_mode_duplicate(dev, scan);
+				goto out;	/* FIXME: check for quirks */
+			}
+		}
+	}
+
+	/*
+	 * If we didn't get EDID, try geting panel timing
+	 * from configuration data
+	 */
+	mode_dev->panel_fixed_mode = mrst_lvds_get_configuration_mode(dev);
+
+	if (mode_dev->panel_fixed_mode) {
+		mode_dev->panel_fixed_mode->type |=
+		    DRM_MODE_TYPE_PREFERRED;
+		goto out;	/* FIXME: check for quirks */
+	}
+
+	/* If we still don't have a mode after all that, give up. */
+	if (!mode_dev->panel_fixed_mode) {
+		DRM_DEBUG
+		    ("Found no modes on the lvds, ignoring the LVDS\n");
+		goto failed_find;
+	}
+
+out:
+	drm_sysfs_connector_add(connector);
+	return;
+
+failed_find:
+	DRM_DEBUG("No LVDS modes found, disabling.\n");
+	if (psb_intel_output->ddc_bus)
+		psb_intel_i2c_destroy(psb_intel_output->ddc_bus);
+
+/* failed_ddc: */
+
+	drm_encoder_cleanup(encoder);
+	drm_connector_cleanup(connector);
+	kfree(connector);
+}
+
diff --git a/drivers/staging/gma500/psb_2d.c b/drivers/staging/gma500/psb_2d.c
index e4cae5d77d01..0bd834c982d3 100644
--- a/drivers/staging/gma500/psb_2d.c
+++ b/drivers/staging/gma500/psb_2d.c
@@ -40,7 +40,6 @@
 #include "psb_reg.h"
 #include "psb_drv.h"
 #include "psb_fb.h"
-#include "psb_sgx.h"
 
 void psb_spank(struct drm_psb_private *dev_priv)
 {
@@ -85,7 +84,7 @@ static int psb_2d_wait_available(struct drm_psb_private *dev_priv,
 /* FIXME: Remember if we expose the 2D engine to the DRM we need to serialize
    it with console use */
 
-static int psbfb_2d_submit(struct drm_psb_private *dev_priv, uint32_t *cmdbuf,
+int psbfb_2d_submit(struct drm_psb_private *dev_priv, uint32_t *cmdbuf,
 	 	  	   unsigned size)
 {
 	int ret = 0;
@@ -161,7 +160,7 @@ static void psbfb_fillrect_accel(struct fb_info *info,
 	if (!fb)
 		return;
 
-	offset = psbfb->offset;
+	offset = psbfb->gtt->offset;
 	stride = fb->pitch;
 
 	switch (fb->depth) {
@@ -304,7 +303,7 @@ static void psbfb_copyarea_accel(struct fb_info *info,
 	if (!fb)
 		return;
 
-	offset = psbfb->offset;
+	offset = psbfb->gtt->offset;
 	stride = fb->pitch;
 
 	switch (fb->depth) {
@@ -344,7 +343,7 @@ void psbfb_copyarea(struct fb_info *info,
 	if (unlikely(info->state != FBINFO_STATE_RUNNING))
 		return;
 
-	if (1 || (info->flags & FBINFO_HWACCEL_DISABLED))
+	if (info->flags & FBINFO_HWACCEL_DISABLED)
 		return cfb_copyarea(info, region);
 
 	/* psb_check_power_state(dev, PSB_DEVICE_SGX); */
diff --git a/drivers/staging/gma500/psb_bl.c b/drivers/staging/gma500/psb_bl.c
index 70c17b352f9f..5dffc71c5125 100644
--- a/drivers/staging/gma500/psb_bl.c
+++ b/drivers/staging/gma500/psb_bl.c
@@ -33,7 +33,6 @@
 #define BLC_PWM_FREQ_CALC_CONSTANT 32
 #define MHz 1000000
 #define BRIGHTNESS_MIN_LEVEL 1
-#define BRIGHTNESS_MAX_LEVEL 100
 #define BRIGHTNESS_MASK	0xFF
 #define BLC_POLARITY_NORMAL 0
 #define BLC_POLARITY_INVERSE 1
@@ -59,15 +58,57 @@ int psb_set_brightness(struct backlight_device *bd)
 
 	DRM_DEBUG_DRIVER("backlight level set to %d\n", level);
 
-	/* Perform value bounds checking */
-	if (level < BRIGHTNESS_MIN_LEVEL)
-		level = BRIGHTNESS_MIN_LEVEL;
+	/* Percentage 1-100% being valid */
+	if (level < 1)
+		level = 1;
 
 	psb_intel_lvds_set_brightness(dev, level);
 	psb_brightness = level;
 	return 0;
 }
 
+int mrst_set_brightness(struct backlight_device *bd)
+{
+	struct drm_device *dev = bl_get_data(psb_backlight_device);
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	int level = bd->props.brightness;
+	u32 blc_pwm_ctl;
+	u32 max_pwm_blc;
+
+	DRM_DEBUG_DRIVER("backlight level set to %d\n", level);
+
+	/* Percentage 1-100% being valid */
+	if (level < 1)
+		level = 1;
+
+	if (gma_power_begin(dev, 0)) {
+		/* Calculate and set the brightness value */
+		max_pwm_blc = REG_READ(BLC_PWM_CTL) >> 16;
+		blc_pwm_ctl = level * max_pwm_blc / 100;
+
+		/* Adjust the backlight level with the percent in
+		 * dev_priv->blc_adj1;
+		 */
+		blc_pwm_ctl = blc_pwm_ctl * dev_priv->blc_adj1;
+		blc_pwm_ctl = blc_pwm_ctl / 100;
+
+		/* Adjust the backlight level with the percent in
+		 * dev_priv->blc_adj2;
+		 */
+		blc_pwm_ctl = blc_pwm_ctl * dev_priv->blc_adj2;
+		blc_pwm_ctl = blc_pwm_ctl / 100;
+
+		if (blc_pol == BLC_POLARITY_INVERSE)
+			blc_pwm_ctl = max_pwm_blc - blc_pwm_ctl;
+		/* force PWM bit on */
+		REG_WRITE(BLC_PWM_CTL2, (0x80000000 | REG_READ(BLC_PWM_CTL2)));
+		REG_WRITE(BLC_PWM_CTL, (max_pwm_blc << 16) | blc_pwm_ctl);
+		gma_power_end(dev);
+	}
+	psb_brightness = level;
+	return 0;
+}
+
 int psb_get_brightness(struct backlight_device *bd)
 {
 	DRM_DEBUG_DRIVER("brightness = 0x%x\n", psb_brightness);
@@ -85,24 +126,33 @@ static const struct backlight_ops psb_ops = {
 
 static int device_backlight_init(struct drm_device *dev)
 {
+	struct drm_psb_private *dev_priv = dev->dev_private;
 	unsigned long core_clock;
 	/* u32 bl_max_freq; */
 	/* unsigned long value; */
 	u16 bl_max_freq;
 	uint32_t value;
 	uint32_t blc_pwm_precision_factor;
-	struct drm_psb_private *dev_priv = dev->dev_private;
 
-	/* get bl_max_freq and pol from dev_priv*/
-	if (!dev_priv->lvds_bl) {
-		DRM_ERROR("Has no valid LVDS backlight info\n");
-		return 1;
+	if (IS_MRST(dev)) {
+		dev_priv->blc_adj1 = BLC_ADJUSTMENT_MAX;
+		dev_priv->blc_adj2 = BLC_ADJUSTMENT_MAX;
+		bl_max_freq = 256;
+		/* this needs to be set elsewhere */
+		blc_pol = BLC_POLARITY_NORMAL;
+		blc_pwm_precision_factor = BLC_PWM_PRECISION_FACTOR;
+	} else {
+		/* get bl_max_freq and pol from dev_priv*/
+		if (!dev_priv->lvds_bl) {
+			DRM_ERROR("Has no valid LVDS backlight info\n");
+			return 1;
+		}
+		bl_max_freq = dev_priv->lvds_bl->freq;
+		blc_pol = dev_priv->lvds_bl->pol;
+		blc_pwm_precision_factor = PSB_BLC_PWM_PRECISION_FACTOR;
+		blc_brightnesscmd = dev_priv->lvds_bl->brightnesscmd;
+		blc_type = dev_priv->lvds_bl->type;
 	}
-	bl_max_freq = dev_priv->lvds_bl->freq;
-	blc_pol = dev_priv->lvds_bl->pol;
-	blc_pwm_precision_factor = PSB_BLC_PWM_PRECISION_FACTOR;
-	blc_brightnesscmd = dev_priv->lvds_bl->brightnesscmd;
-	blc_type = dev_priv->lvds_bl->type;
 
 	core_clock = dev_priv->core_freq;
 
@@ -111,20 +161,27 @@ static int device_backlight_init(struct drm_device *dev)
 	value /= bl_max_freq;
 	value /= blc_pwm_precision_factor;
 
-	if (ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND,
-						OSPM_UHB_ONLY_IF_ON)) {
-		/* Check: may be MFLD only */
-		if (
-		 value > (unsigned long long)PSB_BLC_MAX_PWM_REG_FREQ ||
-		 value < (unsigned long long)PSB_BLC_MIN_PWM_REG_FREQ)
-			return 2;
-		else {
-			value &= PSB_BACKLIGHT_PWM_POLARITY_BIT_CLEAR;
-			REG_WRITE(BLC_PWM_CTL,
-				(value << PSB_BACKLIGHT_PWM_CTL_SHIFT) |
-				(value));
+	if (gma_power_begin(dev, false)) {
+		if (IS_MRST(dev)) {
+			if (value > (unsigned long long)MRST_BLC_MAX_PWM_REG_FREQ)
+				return 2;
+			else {
+				REG_WRITE(BLC_PWM_CTL2,
+					(0x80000000 | REG_READ(BLC_PWM_CTL2)));
+				REG_WRITE(BLC_PWM_CTL, value | (value << 16));
+			}
+		} else {
+			if (value > (unsigned long long)PSB_BLC_MAX_PWM_REG_FREQ ||
+			 value < (unsigned long long)PSB_BLC_MIN_PWM_REG_FREQ)
+				return 2;
+			else {
+				value &= PSB_BACKLIGHT_PWM_POLARITY_BIT_CLEAR;
+				REG_WRITE(BLC_PWM_CTL,
+					(value << PSB_BACKLIGHT_PWM_CTL_SHIFT) |
+					(value));
+			}
 		}
-		ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+		gma_power_end(dev);
 	}
 	return 0;
 }
@@ -136,7 +193,8 @@ int psb_backlight_init(struct drm_device *dev)
 
 	struct backlight_properties props;
 	memset(&props, 0, sizeof(struct backlight_properties));
-	props.max_brightness = BRIGHTNESS_MAX_LEVEL;
+	props.max_brightness = 100;
+	props.type = BACKLIGHT_PLATFORM;
 
 	psb_backlight_device = backlight_device_register("psb-bl", NULL,
 						(void *)dev, &psb_ops, &props);
@@ -147,8 +205,8 @@ int psb_backlight_init(struct drm_device *dev)
 	if (ret < 0)
 		return ret;
 
-	psb_backlight_device->props.brightness = BRIGHTNESS_MAX_LEVEL;
-	psb_backlight_device->props.max_brightness = BRIGHTNESS_MAX_LEVEL;
+	psb_backlight_device->props.brightness = 100;
+	psb_backlight_device->props.max_brightness = 100;
 	backlight_update_status(psb_backlight_device);
 #endif
 	return 0;
diff --git a/drivers/staging/gma500/psb_buffer.c b/drivers/staging/gma500/psb_buffer.c
deleted file mode 100644
index 3077f6a7b7dc..000000000000
--- a/drivers/staging/gma500/psb_buffer.c
+++ /dev/null
@@ -1,450 +0,0 @@
-/**************************************************************************
- * Copyright (c) 2007, Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- **************************************************************************/
-/*
- * Authors: Thomas Hellstrom <thomas-at-tungstengraphics.com>
- */
-#include "ttm/ttm_placement.h"
-#include "ttm/ttm_execbuf_util.h"
-#include "psb_ttm_fence_api.h"
-#include <drm/drmP.h>
-#include "psb_drv.h"
-
-#define DRM_MEM_TTM       26
-
-struct drm_psb_ttm_backend {
-	struct ttm_backend base;
-	struct page **pages;
-	unsigned int desired_tile_stride;
-	unsigned int hw_tile_stride;
-	int mem_type;
-	unsigned long offset;
-	unsigned long num_pages;
-};
-
-/*
- * MSVDX/TOPAZ GPU virtual space looks like this
- * (We currently use only one MMU context).
- * PSB_MEM_MMU_START: from 0x00000000~0xe000000, for generic buffers
- * TTM_PL_CI: from 0xe0000000+half GTT space, for camear/video buffer sharing
- * TTM_PL_RAR: from TTM_PL_CI+CI size, for RAR/video buffer sharing
- * TTM_PL_TT: from TTM_PL_RAR+RAR size, for buffers need to mapping into GTT
- */
-static int psb_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
-			     struct ttm_mem_type_manager *man)
-{
-
-	struct drm_psb_private *dev_priv =
-	    container_of(bdev, struct drm_psb_private, bdev);
-	struct psb_gtt *pg = dev_priv->pg;
-
-	switch (type) {
-	case TTM_PL_SYSTEM:
-		man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
-		man->available_caching = TTM_PL_FLAG_CACHED |
-		    TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_WC;
-		man->default_caching = TTM_PL_FLAG_CACHED;
-		break;
-	case DRM_PSB_MEM_MMU:
-		man->func = &ttm_bo_manager_func;
-		man->flags = TTM_MEMTYPE_FLAG_MAPPABLE |
-		    TTM_MEMTYPE_FLAG_CMA;
-		man->gpu_offset = PSB_MEM_MMU_START;
-		man->available_caching = TTM_PL_FLAG_CACHED |
-		    TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_WC;
-		man->default_caching = TTM_PL_FLAG_WC;
-		break;
-	case TTM_PL_CI:
-		man->func = &ttm_bo_manager_func;
-		man->flags = TTM_MEMTYPE_FLAG_MAPPABLE |
-			TTM_MEMTYPE_FLAG_FIXED;
-		man->gpu_offset = pg->mmu_gatt_start + (pg->ci_start);
-		man->available_caching = TTM_PL_FLAG_UNCACHED;
-		man->default_caching = TTM_PL_FLAG_UNCACHED;
-		break;
-	case TTM_PL_RAR:	/* Unmappable RAR memory */
-		man->func = &ttm_bo_manager_func;
-		man->flags = TTM_MEMTYPE_FLAG_MAPPABLE |
-			TTM_MEMTYPE_FLAG_FIXED;
-		man->available_caching = TTM_PL_FLAG_UNCACHED;
-		man->default_caching = TTM_PL_FLAG_UNCACHED;
-		man->gpu_offset = pg->mmu_gatt_start + (pg->rar_start);
-		break;
-	case TTM_PL_TT:	/* Mappable GATT memory */
-		man->func = &ttm_bo_manager_func;
-#ifdef PSB_WORKING_HOST_MMU_ACCESS
-		man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
-#else
-		man->flags = TTM_MEMTYPE_FLAG_MAPPABLE |
-		    TTM_MEMTYPE_FLAG_CMA;
-#endif
-		man->available_caching = TTM_PL_FLAG_CACHED |
-		    TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_WC;
-		man->default_caching = TTM_PL_FLAG_WC;
-		man->gpu_offset = pg->mmu_gatt_start +
-				(pg->rar_start + dev_priv->rar_region_size);
-		break;
-	default:
-		DRM_ERROR("Unsupported memory type %u\n", (unsigned) type);
-		return -EINVAL;
-	}
-	return 0;
-}
-
-
-static void psb_evict_mask(struct ttm_buffer_object *bo,
-					struct ttm_placement *placement)
-{
-	static uint32_t cur_placement;
-
-	cur_placement = bo->mem.placement & ~TTM_PL_MASK_MEM;
-	cur_placement |= TTM_PL_FLAG_SYSTEM;
-
-	placement->fpfn = 0;
-	placement->lpfn = 0;
-	placement->num_placement = 1;
-	placement->placement = &cur_placement;
-	placement->num_busy_placement = 0;
-	placement->busy_placement = NULL;
-
-	/* all buffers evicted to system memory */
-	/* return cur_placement | TTM_PL_FLAG_SYSTEM; */
-}
-
-static int psb_invalidate_caches(struct ttm_bo_device *bdev,
-				 uint32_t placement)
-{
-	return 0;
-}
-
-static int psb_move_blit(struct ttm_buffer_object *bo,
-			 bool evict, bool no_wait,
-			 struct ttm_mem_reg *new_mem)
-{
-	BUG();
-	return 0;
-}
-
-/*
- * Flip destination ttm into GATT,
- * then blit and subsequently move out again.
- */
-
-static int psb_move_flip(struct ttm_buffer_object *bo,
-			 bool evict, bool interruptible, bool no_wait,
-			 struct ttm_mem_reg *new_mem)
-{
-	/*struct ttm_bo_device *bdev = bo->bdev;*/
-	struct ttm_mem_reg tmp_mem;
-	int ret;
-	struct ttm_placement placement;
-	uint32_t flags = TTM_PL_FLAG_TT;
-
-	tmp_mem = *new_mem;
-	tmp_mem.mm_node = NULL;
-
-	placement.fpfn = 0;
-	placement.lpfn = 0;
-	placement.num_placement = 1;
-	placement.placement = &flags;
-	placement.num_busy_placement = 0; /* FIXME */
-	placement.busy_placement = NULL;
-
-	ret = ttm_bo_mem_space(bo, &placement, &tmp_mem, interruptible,
-							false, no_wait);
-	if (ret)
-		return ret;
-	ret = ttm_tt_bind(bo->ttm, &tmp_mem);
-	if (ret)
-		goto out_cleanup;
-	ret = psb_move_blit(bo, true, no_wait, &tmp_mem);
-	if (ret)
-		goto out_cleanup;
-
-	ret = ttm_bo_move_ttm(bo, evict, false, no_wait, new_mem);
-out_cleanup:
-	if (tmp_mem.mm_node) {
-		drm_mm_put_block(tmp_mem.mm_node);
-		tmp_mem.mm_node = NULL;
-	}
-	return ret;
-}
-
-static int psb_move(struct ttm_buffer_object *bo,
-		    bool evict, bool interruptible, bool no_wait_reserve,
-		    bool no_wait, struct ttm_mem_reg *new_mem)
-{
-	struct ttm_mem_reg *old_mem = &bo->mem;
-
-	if ((old_mem->mem_type == TTM_PL_RAR) ||
-	    (new_mem->mem_type == TTM_PL_RAR)) {
-		if (old_mem->mm_node) {
-			spin_lock(&bo->glob->lru_lock);
-			drm_mm_put_block(old_mem->mm_node);
-			spin_unlock(&bo->glob->lru_lock);
-		}
-		old_mem->mm_node = NULL;
-		*old_mem = *new_mem;
-	} else if (old_mem->mem_type == TTM_PL_SYSTEM) {
-		return ttm_bo_move_memcpy(bo, evict, false, no_wait, new_mem);
-	} else if (new_mem->mem_type == TTM_PL_SYSTEM) {
-		int ret = psb_move_flip(bo, evict, interruptible,
-					no_wait, new_mem);
-		if (unlikely(ret != 0)) {
-			if (ret == -ERESTART)
-				return ret;
-			else
-				return ttm_bo_move_memcpy(bo, evict, false,
-						no_wait, new_mem);
-		}
-	} else {
-		if (psb_move_blit(bo, evict, no_wait, new_mem))
-			return ttm_bo_move_memcpy(bo, evict, false, no_wait,
-						  new_mem);
-	}
-	return 0;
-}
-
-static int drm_psb_tbe_populate(struct ttm_backend *backend,
-				unsigned long num_pages,
-				struct page **pages,
-				struct page *dummy_read_page,
-				dma_addr_t *dma_addrs)
-{
-	struct drm_psb_ttm_backend *psb_be =
-	    container_of(backend, struct drm_psb_ttm_backend, base);
-
-	psb_be->pages = pages;
-	return 0;
-}
-
-static int drm_psb_tbe_unbind(struct ttm_backend *backend)
-{
-	struct ttm_bo_device *bdev = backend->bdev;
-	struct drm_psb_private *dev_priv =
-	    container_of(bdev, struct drm_psb_private, bdev);
-	struct drm_psb_ttm_backend *psb_be =
-	    container_of(backend, struct drm_psb_ttm_backend, base);
-	struct psb_mmu_pd *pd = psb_mmu_get_default_pd(dev_priv->mmu);
-	/* struct ttm_mem_type_manager *man = &bdev->man[psb_be->mem_type]; */
-
-	if (psb_be->mem_type == TTM_PL_TT) {
-		uint32_t gatt_p_offset =
-			(psb_be->offset - dev_priv->pg->mmu_gatt_start)
-								>> PAGE_SHIFT;
-
-		(void) psb_gtt_remove_pages(dev_priv->pg, gatt_p_offset,
-					    psb_be->num_pages,
-					    psb_be->desired_tile_stride,
-					    psb_be->hw_tile_stride, 0);
-	}
-
-	psb_mmu_remove_pages(pd, psb_be->offset,
-			     psb_be->num_pages,
-			     psb_be->desired_tile_stride,
-			     psb_be->hw_tile_stride);
-
-	return 0;
-}
-
-static int drm_psb_tbe_bind(struct ttm_backend *backend,
-			    struct ttm_mem_reg *bo_mem)
-{
-	struct ttm_bo_device *bdev = backend->bdev;
-	struct drm_psb_private *dev_priv =
-	    container_of(bdev, struct drm_psb_private, bdev);
-	struct drm_psb_ttm_backend *psb_be =
-	    container_of(backend, struct drm_psb_ttm_backend, base);
-	struct psb_mmu_pd *pd = psb_mmu_get_default_pd(dev_priv->mmu);
-	struct ttm_mem_type_manager *man = &bdev->man[bo_mem->mem_type];
-	struct drm_mm_node *mm_node = bo_mem->mm_node;
-	int type;
-	int ret = 0;
-
-	psb_be->mem_type = bo_mem->mem_type;
-	psb_be->num_pages = bo_mem->num_pages;
-	psb_be->desired_tile_stride = 0;
-	psb_be->hw_tile_stride = 0;
-	psb_be->offset = (mm_node->start << PAGE_SHIFT) +
-	    man->gpu_offset;
-
-	type =
-	    (bo_mem->
-	     placement & TTM_PL_FLAG_CACHED) ? PSB_MMU_CACHED_MEMORY : 0;
-
-	if (psb_be->mem_type == TTM_PL_TT) {
-		uint32_t gatt_p_offset =
-				(psb_be->offset - dev_priv->pg->mmu_gatt_start)
-								>> PAGE_SHIFT;
-
-		ret = psb_gtt_insert_pages(dev_priv->pg, psb_be->pages,
-					   gatt_p_offset,
-					   psb_be->num_pages,
-					   psb_be->desired_tile_stride,
-					   psb_be->hw_tile_stride, type);
-	}
-
-	ret = psb_mmu_insert_pages(pd, psb_be->pages,
-				   psb_be->offset, psb_be->num_pages,
-				   psb_be->desired_tile_stride,
-				   psb_be->hw_tile_stride, type);
-	if (ret)
-		goto out_err;
-
-	return 0;
-out_err:
-	drm_psb_tbe_unbind(backend);
-	return ret;
-
-}
-
-static void drm_psb_tbe_clear(struct ttm_backend *backend)
-{
-	struct drm_psb_ttm_backend *psb_be =
-	    container_of(backend, struct drm_psb_ttm_backend, base);
-
-	psb_be->pages = NULL;
-	return;
-}
-
-static void drm_psb_tbe_destroy(struct ttm_backend *backend)
-{
-	struct drm_psb_ttm_backend *psb_be =
-	    container_of(backend, struct drm_psb_ttm_backend, base);
-
-	if (backend)
-		kfree(psb_be);
-}
-
-static struct ttm_backend_func psb_ttm_backend = {
-	.populate = drm_psb_tbe_populate,
-	.clear = drm_psb_tbe_clear,
-	.bind = drm_psb_tbe_bind,
-	.unbind = drm_psb_tbe_unbind,
-	.destroy = drm_psb_tbe_destroy,
-};
-
-static struct ttm_backend *drm_psb_tbe_init(struct ttm_bo_device *bdev)
-{
-	struct drm_psb_ttm_backend *psb_be;
-
-	psb_be = kzalloc(sizeof(*psb_be), GFP_KERNEL);
-	if (!psb_be)
-		return NULL;
-	psb_be->pages = NULL;
-	psb_be->base.func = &psb_ttm_backend;
-	psb_be->base.bdev = bdev;
-	return &psb_be->base;
-}
-
-static int psb_ttm_io_mem_reserve(struct ttm_bo_device *bdev,
-						struct ttm_mem_reg *mem)
-{
-	struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
-	struct drm_psb_private *dev_priv =
-	    container_of(bdev, struct drm_psb_private, bdev);
-	struct psb_gtt *pg = dev_priv->pg;
-	struct drm_mm_node *mm_node = mem->mm_node;
-
-	mem->bus.addr = NULL;
-	mem->bus.offset = 0;
-	mem->bus.size = mem->num_pages << PAGE_SHIFT;
-	mem->bus.base = 0;
-	mem->bus.is_iomem = false;
-	if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE))
-		return -EINVAL;
-	switch (mem->mem_type) {
-	case TTM_PL_SYSTEM:
-		/* system memory */
-		return 0;
-	case TTM_PL_TT:
-		mem->bus.offset = mm_node->start << PAGE_SHIFT;
-		mem->bus.base = pg->gatt_start;
-		mem->bus.is_iomem = false;
-		/* Don't know whether it is IO_MEM, this flag
-						used in vm_fault handle */
-		break;
-	case DRM_PSB_MEM_MMU:
-		mem->bus.offset = mm_node->start << PAGE_SHIFT;
-		mem->bus.base = 0x00000000;
-		break;
-	case TTM_PL_CI:
-		mem->bus.offset = mm_node->start << PAGE_SHIFT;
-		mem->bus.base = dev_priv->ci_region_start;;
-		mem->bus.is_iomem = true;
-		break;
-	case TTM_PL_RAR:
-		mem->bus.offset = mm_node->start << PAGE_SHIFT;
-		mem->bus.base = dev_priv->rar_region_start;;
-		mem->bus.is_iomem = true;
-		break;
-	default:
-		return -EINVAL;
-	}
-	return 0;
-}
-
-static void psb_ttm_io_mem_free(struct ttm_bo_device *bdev,
-						struct ttm_mem_reg *mem)
-{
-}
-
-/*
- * Use this memory type priority if no eviction is needed.
- */
-/*
-static uint32_t psb_mem_prios[] = {
-	TTM_PL_CI,
-	TTM_PL_RAR,
-	TTM_PL_TT,
-	DRM_PSB_MEM_MMU,
-	TTM_PL_SYSTEM
-};
-*/
-/*
- * Use this memory type priority if need to evict.
- */
-/*
-static uint32_t psb_busy_prios[] = {
-	TTM_PL_TT,
-	TTM_PL_CI,
-	TTM_PL_RAR,
-	DRM_PSB_MEM_MMU,
-	TTM_PL_SYSTEM
-};
-*/
-struct ttm_bo_driver psb_ttm_bo_driver = {
-/*
-	.mem_type_prio = psb_mem_prios,
-	.mem_busy_prio = psb_busy_prios,
-	.num_mem_type_prio = ARRAY_SIZE(psb_mem_prios),
-	.num_mem_busy_prio = ARRAY_SIZE(psb_busy_prios),
-*/
-	.create_ttm_backend_entry = &drm_psb_tbe_init,
-	.invalidate_caches = &psb_invalidate_caches,
-	.init_mem_type = &psb_init_mem_type,
-	.evict_flags = &psb_evict_mask,
-	.move = &psb_move,
-	.verify_access = &psb_verify_access,
-	.sync_obj_signaled = &ttm_fence_sync_obj_signaled,
-	.sync_obj_wait = &ttm_fence_sync_obj_wait,
-	.sync_obj_flush = &ttm_fence_sync_obj_flush,
-	.sync_obj_unref = &ttm_fence_sync_obj_unref,
-	.sync_obj_ref = &ttm_fence_sync_obj_ref,
-	.io_mem_reserve = &psb_ttm_io_mem_reserve,
-	.io_mem_free = &psb_ttm_io_mem_free
-};
diff --git a/drivers/staging/gma500/psb_drm.h b/drivers/staging/gma500/psb_drm.h
index a339406052ef..49ffdd5b90e2 100644
--- a/drivers/staging/gma500/psb_drm.h
+++ b/drivers/staging/gma500/psb_drm.h
@@ -28,9 +28,6 @@
 #include "drm_mode.h"
 #endif
 
-#include "psb_ttm_fence_user.h"
-#include "psb_ttm_placement_user.h"
-
 #define DRM_PSB_SAREA_MAJOR 0
 #define DRM_PSB_SAREA_MINOR 2
 #define PSB_FIXED_SHIFT 16
@@ -41,15 +38,6 @@
  * Public memory types.
  */
 
-#define DRM_PSB_MEM_MMU 	TTM_PL_PRIV1
-#define DRM_PSB_FLAG_MEM_MMU	TTM_PL_FLAG_PRIV1
-
-#define TTM_PL_CI               TTM_PL_PRIV0
-#define TTM_PL_FLAG_CI          TTM_PL_FLAG_PRIV0
-
-#define TTM_PL_RAR              TTM_PL_PRIV2
-#define TTM_PL_FLAG_RAR         TTM_PL_FLAG_PRIV2
-
 typedef s32 psb_fixed;
 typedef u32 psb_ufixed;
 
@@ -112,111 +100,12 @@ struct drm_psb_sarea {
 	u32 num_active_scanouts;
 };
 
-#define PSB_RELOC_MAGIC         0x67676767
-#define PSB_RELOC_SHIFT_MASK    0x0000FFFF
-#define PSB_RELOC_SHIFT_SHIFT   0
-#define PSB_RELOC_ALSHIFT_MASK  0xFFFF0000
-#define PSB_RELOC_ALSHIFT_SHIFT 16
-
-#define PSB_RELOC_OP_OFFSET     0	/* Offset of the indicated
-					 * buffer
-					 */
-
-struct drm_psb_reloc {
-	u32 reloc_op;
-	u32 where;		/* offset in destination buffer */
-	u32 buffer;	/* Buffer reloc applies to */
-	u32 mask;		/* Destination format: */
-	u32 shift;		/* Destination format: */
-	u32 pre_add;	/* Destination format: */
-	u32 background;	/* Destination add */
-	u32 dst_buffer;	/* Destination buffer. Index into buffer_list */
-	u32 arg0;		/* Reloc-op dependent */
-	u32 arg1;
-};
-
-
 #define PSB_GPU_ACCESS_READ         (1ULL << 32)
 #define PSB_GPU_ACCESS_WRITE        (1ULL << 33)
 #define PSB_GPU_ACCESS_MASK         (PSB_GPU_ACCESS_READ | PSB_GPU_ACCESS_WRITE)
 
 #define PSB_BO_FLAG_COMMAND         (1ULL << 52)
 
-#define PSB_ENGINE_2D 0
-#define PSB_ENGINE_VIDEO 1
-#define LNC_ENGINE_ENCODE 5
-
-/*
- * For this fence class we have a couple of
- * fence types.
- */
-
-#define _PSB_FENCE_EXE_SHIFT           0
-#define _PSB_FENCE_FEEDBACK_SHIFT      4
-
-#define _PSB_FENCE_TYPE_EXE         (1 << _PSB_FENCE_EXE_SHIFT)
-#define _PSB_FENCE_TYPE_FEEDBACK    (1 << _PSB_FENCE_FEEDBACK_SHIFT)
-
-#define PSB_NUM_ENGINES 6
-
-
-#define PSB_FEEDBACK_OP_VISTEST (1 << 0)
-
-struct drm_psb_extension_rep {
-	s32 exists;
-	u32 driver_ioctl_offset;
-	u32 sarea_offset;
-	u32 major;
-	u32 minor;
-	u32 pl;
-};
-
-#define DRM_PSB_EXT_NAME_LEN 128
-
-union drm_psb_extension_arg {
-	char extension[DRM_PSB_EXT_NAME_LEN];
-	struct drm_psb_extension_rep rep;
-};
-
-struct psb_validate_req {
-	u64 set_flags;
-	u64 clear_flags;
-	u64 next;
-	u64 presumed_gpu_offset;
-	u32 buffer_handle;
-	u32 presumed_flags;
-	u32 group;
-	u32 pad64;
-};
-
-struct psb_validate_rep {
-	u64 gpu_offset;
-	u32 placement;
-	u32 fence_type_mask;
-};
-
-#define PSB_USE_PRESUMED     (1 << 0)
-
-struct psb_validate_arg {
-	int handled;
-	int ret;
-	union {
-		struct psb_validate_req req;
-		struct psb_validate_rep rep;
-	} d;
-};
-
-
-#define DRM_PSB_FENCE_NO_USER        (1 << 0)
-
-struct psb_ttm_fence_rep {
-	u32 handle;
-	u32 fence_class;
-	u32 fence_type;
-	u32 signaled_types;
-	u32 error;
-};
-
 /*
  * Feedback components:
  */
@@ -330,17 +219,6 @@ struct drm_psb_register_rw_arg {
 	u32 subpicture_disable_mask;
 };
 
-struct psb_gtt_mapping_arg {
-	void *hKernelMemInfo;
-	u32 offset_pages;
-};
-
-struct drm_psb_getpageaddrs_arg {
-	u32 handle;
-	unsigned long *page_addrs;
-	unsigned long gtt_offset;
-};
-
 /* Controlling the kernel modesetting buffers */
 
 #define DRM_PSB_KMS_OFF		0x00
diff --git a/drivers/staging/gma500/psb_drv.c b/drivers/staging/gma500/psb_drv.c
index d01d45e7a14d..aa87b1b6a44a 100644
--- a/drivers/staging/gma500/psb_drv.c
+++ b/drivers/staging/gma500/psb_drv.c
@@ -38,30 +38,29 @@
 int drm_psb_debug;
 static int drm_psb_trap_pagefaults;
 
-int drm_psb_disable_vsync = 1;
 int drm_psb_no_fb;
-int gfxrtdelay = 2 * 1000;
 
 static int psb_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
 
 MODULE_PARM_DESC(debug, "Enable debug output");
 MODULE_PARM_DESC(no_fb, "Disable FBdev");
 MODULE_PARM_DESC(trap_pagefaults, "Error and reset on MMU pagefaults");
-MODULE_PARM_DESC(disable_vsync, "Disable vsync interrupts");
-MODULE_PARM_DESC(force_pipeb, "Forces PIPEB to become primary fb");
-MODULE_PARM_DESC(ta_mem_size, "TA memory size in kiB");
-MODULE_PARM_DESC(ospm, "switch for ospm support");
-MODULE_PARM_DESC(rtpm, "Specifies Runtime PM delay for GFX");
-MODULE_PARM_DESC(hdmi_edid, "EDID info for HDMI monitor");
 module_param_named(debug, drm_psb_debug, int, 0600);
 module_param_named(no_fb, drm_psb_no_fb, int, 0600);
 module_param_named(trap_pagefaults, drm_psb_trap_pagefaults, int, 0600);
-module_param_named(rtpm, gfxrtdelay, int, 0600);
 
 
 static struct pci_device_id pciidlist[] = {
 	{ 0x8086, 0x8108, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PSB_8108 },
 	{ 0x8086, 0x8109, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PSB_8109 },
+	{ 0x8086, 0x4100, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_MRST_4100},
+	{ 0x8086, 0x4101, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_MRST_4100},
+	{ 0x8086, 0x4102, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_MRST_4100},
+	{ 0x8086, 0x4103, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_MRST_4100},
+	{ 0x8086, 0x4104, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_MRST_4100},
+	{ 0x8086, 0x4105, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_MRST_4100},
+	{ 0x8086, 0x4106, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_MRST_4100},
+	{ 0x8086, 0x4107, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_MRST_4100},
 	{ 0, 0, 0}
 };
 MODULE_DEVICE_TABLE(pci, pciidlist);
@@ -74,10 +73,6 @@ MODULE_DEVICE_TABLE(pci, pciidlist);
 		DRM_IO(DRM_PSB_KMS_OFF + DRM_COMMAND_BASE)
 #define DRM_IOCTL_PSB_KMS_ON	\
 		DRM_IO(DRM_PSB_KMS_ON + DRM_COMMAND_BASE)
-#define DRM_IOCTL_PSB_VT_LEAVE	\
-		DRM_IO(DRM_PSB_VT_LEAVE + DRM_COMMAND_BASE)
-#define DRM_IOCTL_PSB_VT_ENTER	\
-		DRM_IO(DRM_PSB_VT_ENTER + DRM_COMMAND_BASE)
 #define DRM_IOCTL_PSB_SIZES	\
 		DRM_IOR(DRM_PSB_SIZES + DRM_COMMAND_BASE, \
 			struct drm_psb_sizes_arg)
@@ -97,18 +92,6 @@ MODULE_DEVICE_TABLE(pci, pciidlist);
 #define DRM_IOCTL_PSB_REGISTER_RW	\
 		DRM_IOWR(DRM_PSB_REGISTER_RW + DRM_COMMAND_BASE, \
 			 struct drm_psb_register_rw_arg)
-#define DRM_IOCTL_PSB_GTT_MAP	\
-		DRM_IOWR(DRM_PSB_GTT_MAP + DRM_COMMAND_BASE, \
-			 struct psb_gtt_mapping_arg)
-#define DRM_IOCTL_PSB_GTT_UNMAP	\
-		DRM_IOW(DRM_PSB_GTT_UNMAP + DRM_COMMAND_BASE, \
-			struct psb_gtt_mapping_arg)
-#define DRM_IOCTL_PSB_GETPAGEADDRS	\
-		DRM_IOWR(DRM_COMMAND_BASE + DRM_PSB_GETPAGEADDRS,\
-			 struct drm_psb_getpageaddrs_arg)
-#define DRM_IOCTL_PSB_UPDATE_GUARD	\
-		DRM_IOWR(DRM_PSB_UPDATE_GUARD + DRM_COMMAND_BASE, \
-			 uint32_t)
 #define DRM_IOCTL_PSB_DPST	\
 		DRM_IOWR(DRM_PSB_DPST + DRM_COMMAND_BASE, \
 			 uint32_t)
@@ -122,74 +105,6 @@ MODULE_DEVICE_TABLE(pci, pciidlist);
 		DRM_IOWR(DRM_PSB_GET_PIPE_FROM_CRTC_ID + DRM_COMMAND_BASE, \
 			 struct drm_psb_get_pipe_from_crtc_id_arg)
 
-/*
- * TTM execbuf extension.
- */
-
-#define DRM_PSB_CMDBUF		  0x23
-#define DRM_PSB_SCENE_UNREF	  0x24
-#define DRM_IOCTL_PSB_KMS_OFF	  DRM_IO(DRM_PSB_KMS_OFF + DRM_COMMAND_BASE)
-#define DRM_IOCTL_PSB_KMS_ON	  DRM_IO(DRM_PSB_KMS_ON + DRM_COMMAND_BASE)
-/*
- * TTM placement user extension.
- */
-
-#define DRM_PSB_PLACEMENT_OFFSET   (DRM_PSB_SCENE_UNREF + 1)
-
-#define DRM_PSB_TTM_PL_CREATE	 (TTM_PL_CREATE + DRM_PSB_PLACEMENT_OFFSET)
-#define DRM_PSB_TTM_PL_REFERENCE (TTM_PL_REFERENCE + DRM_PSB_PLACEMENT_OFFSET)
-#define DRM_PSB_TTM_PL_UNREF	 (TTM_PL_UNREF + DRM_PSB_PLACEMENT_OFFSET)
-#define DRM_PSB_TTM_PL_SYNCCPU	 (TTM_PL_SYNCCPU + DRM_PSB_PLACEMENT_OFFSET)
-#define DRM_PSB_TTM_PL_WAITIDLE  (TTM_PL_WAITIDLE + DRM_PSB_PLACEMENT_OFFSET)
-#define DRM_PSB_TTM_PL_SETSTATUS (TTM_PL_SETSTATUS + DRM_PSB_PLACEMENT_OFFSET)
-#define DRM_PSB_TTM_PL_CREATE_UB (TTM_PL_CREATE_UB + DRM_PSB_PLACEMENT_OFFSET)
-
-/*
- * TTM fence extension.
- */
-
-#define DRM_PSB_FENCE_OFFSET	   (DRM_PSB_TTM_PL_CREATE_UB + 1)
-#define DRM_PSB_TTM_FENCE_SIGNALED (TTM_FENCE_SIGNALED + DRM_PSB_FENCE_OFFSET)
-#define DRM_PSB_TTM_FENCE_FINISH   (TTM_FENCE_FINISH + DRM_PSB_FENCE_OFFSET)
-#define DRM_PSB_TTM_FENCE_UNREF    (TTM_FENCE_UNREF + DRM_PSB_FENCE_OFFSET)
-
-#define DRM_PSB_FLIP	   (DRM_PSB_TTM_FENCE_UNREF + 1)	/*20*/
-
-#define DRM_IOCTL_PSB_TTM_PL_CREATE    \
-	DRM_IOWR(DRM_COMMAND_BASE + DRM_PSB_TTM_PL_CREATE,\
-		 union ttm_pl_create_arg)
-#define DRM_IOCTL_PSB_TTM_PL_REFERENCE \
-	DRM_IOWR(DRM_COMMAND_BASE + DRM_PSB_TTM_PL_REFERENCE,\
-		 union ttm_pl_reference_arg)
-#define DRM_IOCTL_PSB_TTM_PL_UNREF    \
-	DRM_IOW(DRM_COMMAND_BASE + DRM_PSB_TTM_PL_UNREF,\
-		struct ttm_pl_reference_req)
-#define DRM_IOCTL_PSB_TTM_PL_SYNCCPU	\
-	DRM_IOW(DRM_COMMAND_BASE + DRM_PSB_TTM_PL_SYNCCPU,\
-		struct ttm_pl_synccpu_arg)
-#define DRM_IOCTL_PSB_TTM_PL_WAITIDLE	 \
-	DRM_IOW(DRM_COMMAND_BASE + DRM_PSB_TTM_PL_WAITIDLE,\
-		struct ttm_pl_waitidle_arg)
-#define DRM_IOCTL_PSB_TTM_PL_SETSTATUS \
-	DRM_IOWR(DRM_COMMAND_BASE + DRM_PSB_TTM_PL_SETSTATUS,\
-		 union ttm_pl_setstatus_arg)
-#define DRM_IOCTL_PSB_TTM_PL_CREATE_UB    \
-	DRM_IOWR(DRM_COMMAND_BASE + DRM_PSB_TTM_PL_CREATE_UB,\
-		 union ttm_pl_create_ub_arg)
-#define DRM_IOCTL_PSB_TTM_FENCE_SIGNALED \
-	DRM_IOWR(DRM_COMMAND_BASE + DRM_PSB_TTM_FENCE_SIGNALED,	\
-		  union ttm_fence_signaled_arg)
-#define DRM_IOCTL_PSB_TTM_FENCE_FINISH \
-	DRM_IOWR(DRM_COMMAND_BASE + DRM_PSB_TTM_FENCE_FINISH,	\
-		 union ttm_fence_finish_arg)
-#define DRM_IOCTL_PSB_TTM_FENCE_UNREF \
-	DRM_IOW(DRM_COMMAND_BASE + DRM_PSB_TTM_FENCE_UNREF,	\
-		 struct ttm_fence_unref_arg)
-
-static int psb_vt_leave_ioctl(struct drm_device *dev, void *data,
-			      struct drm_file *file_priv);
-static int psb_vt_enter_ioctl(struct drm_device *dev, void *data,
-			      struct drm_file *file_priv);
 static int psb_sizes_ioctl(struct drm_device *dev, void *data,
 			   struct drm_file *file_priv);
 static int psb_dc_state_ioctl(struct drm_device *dev, void * data,
@@ -218,11 +133,6 @@ static struct drm_ioctl_desc psb_ioctls[] = {
 	PSB_IOCTL_DEF(DRM_IOCTL_PSB_KMS_ON,
 			psbfb_kms_on_ioctl,
 			DRM_ROOT_ONLY),
-	PSB_IOCTL_DEF(DRM_IOCTL_PSB_VT_LEAVE, psb_vt_leave_ioctl,
-		      DRM_ROOT_ONLY),
-	PSB_IOCTL_DEF(DRM_IOCTL_PSB_VT_ENTER,
-			psb_vt_enter_ioctl,
-			DRM_ROOT_ONLY),
 	PSB_IOCTL_DEF(DRM_IOCTL_PSB_SIZES, psb_sizes_ioctl, DRM_AUTH),
 	PSB_IOCTL_DEF(DRM_IOCTL_PSB_DC_STATE, psb_dc_state_ioctl, DRM_AUTH),
 	PSB_IOCTL_DEF(DRM_IOCTL_PSB_ADB, psb_adb_ioctl, DRM_AUTH),
@@ -232,92 +142,226 @@ static struct drm_ioctl_desc psb_ioctls[] = {
 		      DRM_AUTH),
 	PSB_IOCTL_DEF(DRM_IOCTL_PSB_REGISTER_RW, psb_register_rw_ioctl,
 		      DRM_AUTH),
-	PSB_IOCTL_DEF(DRM_IOCTL_PSB_GTT_MAP,
-			psb_gtt_map_meminfo_ioctl,
-			DRM_AUTH),
-	PSB_IOCTL_DEF(DRM_IOCTL_PSB_GTT_UNMAP,
-			psb_gtt_unmap_meminfo_ioctl,
-			DRM_AUTH),
-	PSB_IOCTL_DEF(DRM_IOCTL_PSB_GETPAGEADDRS,
-			psb_getpageaddrs_ioctl,
-			DRM_AUTH),
 	PSB_IOCTL_DEF(DRM_IOCTL_PSB_DPST, psb_dpst_ioctl, DRM_AUTH),
 	PSB_IOCTL_DEF(DRM_IOCTL_PSB_GAMMA, psb_gamma_ioctl, DRM_AUTH),
 	PSB_IOCTL_DEF(DRM_IOCTL_PSB_DPST_BL, psb_dpst_bl_ioctl, DRM_AUTH),
 	PSB_IOCTL_DEF(DRM_IOCTL_PSB_GET_PIPE_FROM_CRTC_ID,
 					psb_intel_get_pipe_from_crtc_id, 0),
 
-	PSB_IOCTL_DEF(DRM_IOCTL_PSB_TTM_PL_CREATE, psb_pl_create_ioctl,
-		      DRM_AUTH),
-	PSB_IOCTL_DEF(DRM_IOCTL_PSB_TTM_PL_REFERENCE, psb_pl_reference_ioctl,
-		      DRM_AUTH),
-	PSB_IOCTL_DEF(DRM_IOCTL_PSB_TTM_PL_UNREF, psb_pl_unref_ioctl,
-		      DRM_AUTH),
-	PSB_IOCTL_DEF(DRM_IOCTL_PSB_TTM_PL_SYNCCPU, psb_pl_synccpu_ioctl,
-		      DRM_AUTH),
-	PSB_IOCTL_DEF(DRM_IOCTL_PSB_TTM_PL_WAITIDLE, psb_pl_waitidle_ioctl,
-		      DRM_AUTH),
-	PSB_IOCTL_DEF(DRM_IOCTL_PSB_TTM_PL_SETSTATUS, psb_pl_setstatus_ioctl,
-		      DRM_AUTH),
-	PSB_IOCTL_DEF(DRM_IOCTL_PSB_TTM_PL_CREATE_UB, psb_pl_ub_create_ioctl,
-		      DRM_AUTH),
-	PSB_IOCTL_DEF(DRM_IOCTL_PSB_TTM_FENCE_SIGNALED,
-		      psb_fence_signaled_ioctl, DRM_AUTH),
-	PSB_IOCTL_DEF(DRM_IOCTL_PSB_TTM_FENCE_FINISH, psb_fence_finish_ioctl,
-		      DRM_AUTH),
-	PSB_IOCTL_DEF(DRM_IOCTL_PSB_TTM_FENCE_UNREF, psb_fence_unref_ioctl,
-		      DRM_AUTH),
 };
 
-static void psb_set_uopt(struct drm_psb_uopt *uopt)
+static void psb_lastclose(struct drm_device *dev)
 {
 	return;
 }
 
-static void psb_lastclose(struct drm_device *dev)
+static void psb_do_takedown(struct drm_device *dev)
 {
-	struct drm_psb_private *dev_priv =
-	    (struct drm_psb_private *) dev->dev_private;
+	/* FIXME: do we need to clean up the gtt here ? */
+}
 
-	return;
+void mrst_get_fuse_settings(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
+	uint32_t fuse_value = 0;
+	uint32_t fuse_value_tmp = 0;
 
-	if (!dev->dev_private)
-		return;
+#define FB_REG06 0xD0810600
+#define FB_MIPI_DISABLE  (1 << 11)
+#define FB_REG09 0xD0810900
+#define FB_REG09 0xD0810900
+#define FB_SKU_MASK  0x7000
+#define FB_SKU_SHIFT 12
+#define FB_SKU_100 0
+#define FB_SKU_100L 1
+#define FB_SKU_83 2
+	pci_write_config_dword(pci_root, 0xD0, FB_REG06);
+	pci_read_config_dword(pci_root, 0xD4, &fuse_value);
+
+	dev_priv->iLVDS_enable = fuse_value & FB_MIPI_DISABLE;
+
+	DRM_INFO("internal display is %s\n",
+		 dev_priv->iLVDS_enable ? "LVDS display" : "MIPI display");
+
+	 /*prevent Runtime suspend at start*/
+	 if (dev_priv->iLVDS_enable) {
+		dev_priv->is_lvds_on = true;
+		dev_priv->is_mipi_on = false;
+	}
+	else {
+		dev_priv->is_mipi_on = true;
+		dev_priv->is_lvds_on = false;
+	}
+
+	dev_priv->video_device_fuse = fuse_value;
+
+	pci_write_config_dword(pci_root, 0xD0, FB_REG09);
+	pci_read_config_dword(pci_root, 0xD4, &fuse_value);
+
+	DRM_INFO("SKU values is 0x%x. \n", fuse_value);
+	fuse_value_tmp = (fuse_value & FB_SKU_MASK) >> FB_SKU_SHIFT;
 
-	mutex_lock(&dev_priv->cmdbuf_mutex);
-	if (dev_priv->context.buffers) {
-		vfree(dev_priv->context.buffers);
-		dev_priv->context.buffers = NULL;
+	dev_priv->fuse_reg_value = fuse_value;
+
+	switch (fuse_value_tmp) {
+	case FB_SKU_100:
+		dev_priv->core_freq = 200;
+		break;
+	case FB_SKU_100L:
+		dev_priv->core_freq = 100;
+		break;
+	case FB_SKU_83:
+		dev_priv->core_freq = 166;
+		break;
+	default:
+		DRM_ERROR("Invalid SKU values, SKU value = 0x%08x\n", fuse_value_tmp);
+		dev_priv->core_freq = 0;
 	}
-	mutex_unlock(&dev_priv->cmdbuf_mutex);
+	DRM_INFO("LNC core clk is %dMHz.\n", dev_priv->core_freq);
+	pci_dev_put(pci_root);
 }
 
-static void psb_do_takedown(struct drm_device *dev)
+void mid_get_pci_revID (struct drm_psb_private *dev_priv)
 {
-	struct drm_psb_private *dev_priv =
-	    (struct drm_psb_private *) dev->dev_private;
-	struct ttm_bo_device *bdev = &dev_priv->bdev;
+	uint32_t platform_rev_id = 0;
+	struct pci_dev *pci_gfx_root = pci_get_bus_and_slot(0, PCI_DEVFN(2, 0));
 
+	/*get the revison ID, B0:D2:F0;0x08 */
+	pci_read_config_dword(pci_gfx_root, 0x08, &platform_rev_id);
+	dev_priv->platform_rev_id = (uint8_t) platform_rev_id;
+	pci_dev_put(pci_gfx_root);
+	PSB_DEBUG_ENTRY("platform_rev_id is %x\n",	dev_priv->platform_rev_id);
+}
 
-	if (dev_priv->have_mem_mmu) {
-		ttm_bo_clean_mm(bdev, DRM_PSB_MEM_MMU);
-		dev_priv->have_mem_mmu = 0;
-	}
+void mrst_get_vbt_data(struct drm_psb_private *dev_priv)
+{
+	struct mrst_vbt *vbt = &dev_priv->vbt_data;
+	u32 platform_config_address;
+	u16 new_size;
+	u8 *vbt_virtual;
+	u8 bpi;
+	u8 number_desc = 0;
+	struct mrst_timing_info *dp_ti = &dev_priv->gct_data.DTD;
+	struct gct_r10_timing_info ti;
+	void *pGCT;
+	struct pci_dev *pci_gfx_root = pci_get_bus_and_slot(0, PCI_DEVFN(2, 0));
 
-	if (dev_priv->have_tt) {
-		ttm_bo_clean_mm(bdev, TTM_PL_TT);
-		dev_priv->have_tt = 0;
-	}
+	/*get the address of the platform config vbt, B0:D2:F0;0xFC */
+	pci_read_config_dword(pci_gfx_root, 0xFC, &platform_config_address);
+	pci_dev_put(pci_gfx_root);
+	DRM_INFO("drm platform config address is %x\n",
+			platform_config_address);
 
-	if (dev_priv->have_camera) {
-		ttm_bo_clean_mm(bdev, TTM_PL_CI);
-		dev_priv->have_camera = 0;
-	}
-	if (dev_priv->have_rar) {
-		ttm_bo_clean_mm(bdev, TTM_PL_RAR);
-		dev_priv->have_rar = 0;
+	/* check for platform config address == 0. */
+	/* this means fw doesn't support vbt */
+
+	if (platform_config_address == 0) {
+		vbt->size = 0;
+		return;
 	}
 
+	/* get the virtual address of the vbt */
+	vbt_virtual = ioremap(platform_config_address, sizeof(*vbt));
+
+	memcpy(vbt, vbt_virtual, sizeof(*vbt));
+	iounmap(vbt_virtual); /* Free virtual address space */
+
+	printk(KERN_ALERT "GCT revision is %x\n", vbt->revision);
+
+	switch (vbt->revision) {
+	case 0:
+		vbt->mrst_gct = NULL;
+		vbt->mrst_gct = \
+			ioremap(platform_config_address + sizeof(*vbt) - 4,
+					vbt->size - sizeof(*vbt) + 4);
+		pGCT = vbt->mrst_gct;
+		bpi = ((struct mrst_gct_v1 *)pGCT)->PD.BootPanelIndex;
+		dev_priv->gct_data.bpi = bpi;
+		dev_priv->gct_data.pt =
+			((struct mrst_gct_v1 *)pGCT)->PD.PanelType;
+		memcpy(&dev_priv->gct_data.DTD,
+			&((struct mrst_gct_v1 *)pGCT)->panel[bpi].DTD,
+				sizeof(struct mrst_timing_info));
+		dev_priv->gct_data.Panel_Port_Control =
+		  ((struct mrst_gct_v1 *)pGCT)->panel[bpi].Panel_Port_Control;
+		dev_priv->gct_data.Panel_MIPI_Display_Descriptor =
+		  ((struct mrst_gct_v1 *)pGCT)->panel[bpi].Panel_MIPI_Display_Descriptor;
+		break;
+	case 1:
+		vbt->mrst_gct = NULL;
+		vbt->mrst_gct = \
+			ioremap(platform_config_address + sizeof(*vbt) - 4,
+					vbt->size - sizeof(*vbt) + 4);
+		pGCT = vbt->mrst_gct;
+		bpi = ((struct mrst_gct_v2 *)pGCT)->PD.BootPanelIndex;
+		dev_priv->gct_data.bpi = bpi;
+		dev_priv->gct_data.pt =
+			((struct mrst_gct_v2 *)pGCT)->PD.PanelType;
+		memcpy(&dev_priv->gct_data.DTD,
+			&((struct mrst_gct_v2 *)pGCT)->panel[bpi].DTD,
+				sizeof(struct mrst_timing_info));
+		dev_priv->gct_data.Panel_Port_Control =
+		  ((struct mrst_gct_v2 *)pGCT)->panel[bpi].Panel_Port_Control;
+		dev_priv->gct_data.Panel_MIPI_Display_Descriptor =
+		  ((struct mrst_gct_v2 *)pGCT)->panel[bpi].Panel_MIPI_Display_Descriptor;
+		break;
+	case 0x10:
+		/*header definition changed from rev 01 (v2) to rev 10h. */
+		/*so, some values have changed location*/
+		new_size = vbt->checksum; /*checksum contains lo size byte*/
+		/*LSB of mrst_gct contains hi size byte*/
+		new_size |= ((0xff & (unsigned int)vbt->mrst_gct)) << 8;
+
+		vbt->checksum = vbt->size; /*size contains the checksum*/
+		if (new_size > 0xff)
+			vbt->size = 0xff; /*restrict size to 255*/
+		else
+			vbt->size = new_size;
+
+		/* number of descriptors defined in the GCT */
+		number_desc = ((0xff00 & (unsigned int)vbt->mrst_gct)) >> 8;
+		bpi = ((0xff0000 & (unsigned int)vbt->mrst_gct)) >> 16;
+		vbt->mrst_gct = NULL;
+		vbt->mrst_gct = \
+			ioremap(platform_config_address + GCT_R10_HEADER_SIZE,
+				GCT_R10_DISPLAY_DESC_SIZE * number_desc);
+		pGCT = vbt->mrst_gct;
+		pGCT = (u8 *)pGCT + (bpi*GCT_R10_DISPLAY_DESC_SIZE);
+		dev_priv->gct_data.bpi = bpi; /*save boot panel id*/
+
+		/*copy the GCT display timings into a temp structure*/
+		memcpy(&ti, pGCT, sizeof(struct gct_r10_timing_info));
+
+		/*now copy the temp struct into the dev_priv->gct_data*/
+		dp_ti->pixel_clock = ti.pixel_clock;
+		dp_ti->hactive_hi = ti.hactive_hi;
+		dp_ti->hactive_lo = ti.hactive_lo;
+		dp_ti->hblank_hi = ti.hblank_hi;
+		dp_ti->hblank_lo = ti.hblank_lo;
+		dp_ti->hsync_offset_hi = ti.hsync_offset_hi;
+		dp_ti->hsync_offset_lo = ti.hsync_offset_lo;
+		dp_ti->hsync_pulse_width_hi = ti.hsync_pulse_width_hi;
+		dp_ti->hsync_pulse_width_lo = ti.hsync_pulse_width_lo;
+		dp_ti->vactive_hi = ti.vactive_hi;
+		dp_ti->vactive_lo = ti.vactive_lo;
+		dp_ti->vblank_hi = ti.vblank_hi;
+		dp_ti->vblank_lo = ti.vblank_lo;
+		dp_ti->vsync_offset_hi = ti.vsync_offset_hi;
+		dp_ti->vsync_offset_lo = ti.vsync_offset_lo;
+		dp_ti->vsync_pulse_width_hi = ti.vsync_pulse_width_hi;
+		dp_ti->vsync_pulse_width_lo = ti.vsync_pulse_width_lo;
+
+		/*mov the MIPI_Display_Descriptor data from GCT to dev priv*/
+		dev_priv->gct_data.Panel_MIPI_Display_Descriptor =
+							*((u8 *)pGCT + 0x0d);
+		dev_priv->gct_data.Panel_MIPI_Display_Descriptor |=
+						(*((u8 *)pGCT + 0x0e)) << 8;
+		break;
+	default:
+		printk(KERN_ERR "Unknown revision of GCT!\n");
+		vbt->size = 0;
+	}
 }
 
 static void psb_get_core_freq(struct drm_device *dev)
@@ -358,36 +402,10 @@ static void psb_get_core_freq(struct drm_device *dev)
 	}
 }
 
-#define FB_REG06 0xD0810600
-#define FB_TOPAZ_DISABLE BIT0
-#define FB_MIPI_DISABLE  BIT11
-#define FB_REG09 0xD0810900
-#define FB_SKU_MASK  (BIT12|BIT13|BIT14)
-#define FB_SKU_SHIFT 12
-#define FB_SKU_100 0
-#define FB_SKU_100L 1
-#define FB_SKU_83 2
-
-bool mid_get_pci_revID(struct drm_psb_private *dev_priv)
-{
-	uint32_t platform_rev_id = 0;
-	struct pci_dev *pci_gfx_root = pci_get_bus_and_slot(0, PCI_DEVFN(2, 0));
-
-	/*get the revison ID, B0:D2:F0;0x08 */
-	pci_read_config_dword(pci_gfx_root, 0x08, &platform_rev_id);
-	dev_priv->platform_rev_id = (uint8_t) platform_rev_id;
-	pci_dev_put(pci_gfx_root);
-	PSB_DEBUG_ENTRY("platform_rev_id is %x\n",
-					dev_priv->platform_rev_id);
-
-	return true;
-}
-
 static int psb_do_init(struct drm_device *dev)
 {
 	struct drm_psb_private *dev_priv =
 	    (struct drm_psb_private *) dev->dev_private;
-	struct ttm_bo_device *bdev = &dev_priv->bdev;
 	struct psb_gtt *pg = dev_priv->pg;
 
 	uint32_t stolen_gtt;
@@ -396,16 +414,6 @@ static int psb_do_init(struct drm_device *dev)
 
 	int ret = -ENOMEM;
 
-
-	/*
-	 * Initialize sequence numbers for the different command
-	 * submission mechanisms.
-	 */
-
-	dev_priv->sequence[PSB_ENGINE_2D] = 0;
-	dev_priv->sequence[PSB_ENGINE_VIDEO] = 0;
-	dev_priv->sequence[LNC_ENGINE_ENCODE] = 0;
-
 	if (pg->mmu_gatt_start & 0x0FFFFFFF) {
 		DRM_ERROR("Gatt must be 256M aligned. This is a bug.\n");
 		ret = -EINVAL;
@@ -445,6 +453,7 @@ static int psb_do_init(struct drm_device *dev)
 	    pg->gatt_pages : PSB_TT_PRIV0_PLIMIT;
 	tt_start = dev_priv->gatt_free_offset - pg->mmu_gatt_start;
 	tt_pages -= tt_start >> PAGE_SHIFT;
+	/* FIXME: can we kill ta_mem_size ? */
 	dev_priv->sizes.ta_mem_size = 0;
 
 	PSB_WSGX32(0x00000000, PSB_CR_BIF_BANK0);
@@ -453,30 +462,10 @@ static int psb_do_init(struct drm_device *dev)
         PSB_WSGX32(PSB_RSGX32(PSB_CR_BIF_CTRL) | _PSB_MMU_ER_MASK,
 							PSB_CR_BIF_CTRL);
 	psb_spank(dev_priv);
-       
-      	PSB_WSGX32(pg->mmu_gatt_start, PSB_CR_BIF_TWOD_REQ_BASE);
-
-	/* TT region managed by TTM. */
-	if (!ttm_bo_init_mm(bdev, TTM_PL_TT,
-			pg->gatt_pages -
-			(pg->ci_start >> PAGE_SHIFT) -
-			((dev_priv->ci_region_size + dev_priv->rar_region_size)
-			 >> PAGE_SHIFT))) {
-
-		dev_priv->have_tt = 1;
-		dev_priv->sizes.tt_size =
-			(tt_pages << PAGE_SHIFT) / (1024 * 1024) / 2;
-	}
 
-	if (!ttm_bo_init_mm(bdev,
-			DRM_PSB_MEM_MMU,
-			PSB_MEM_TT_START >> PAGE_SHIFT)) {
-		dev_priv->have_mem_mmu = 1;
-		dev_priv->sizes.mmu_size =
-			PSB_MEM_TT_START / (1024*1024);
-	}
+	/* mmu_gatt ?? */
+      	PSB_WSGX32(pg->gatt_start, PSB_CR_BIF_TWOD_REQ_BASE);
 
-	PSB_DEBUG_INIT("Init MSVDX\n");
 	return 0;
 out_err:
 	psb_do_takedown(dev);
@@ -510,39 +499,19 @@ static int psb_driver_unload(struct drm_device *dev)
 
 			down_read(&pg->sem);
 			psb_mmu_remove_pfn_sequence(
-					psb_mmu_get_default_pd
-					(dev_priv->mmu),
-					pg->mmu_gatt_start,
-					pg->vram_stolen_size >> PAGE_SHIFT);
-			if (pg->ci_stolen_size != 0)
-				psb_mmu_remove_pfn_sequence(
-					psb_mmu_get_default_pd
-					(dev_priv->mmu),
-					pg->ci_start,
-					pg->ci_stolen_size >> PAGE_SHIFT);
-			if (pg->rar_stolen_size != 0)
-				psb_mmu_remove_pfn_sequence(
-					psb_mmu_get_default_pd
-					(dev_priv->mmu),
-					pg->rar_start,
-					pg->rar_stolen_size >> PAGE_SHIFT);
+				psb_mmu_get_default_pd
+				(dev_priv->mmu),
+				pg->mmu_gatt_start,
+				dev_priv->vram_stolen_size >> PAGE_SHIFT);
 			up_read(&pg->sem);
 			psb_mmu_driver_takedown(dev_priv->mmu);
 			dev_priv->mmu = NULL;
 		}
-		psb_gtt_takedown(dev_priv->pg, 1);
+		psb_gtt_takedown(dev);
 		if (dev_priv->scratch_page) {
 			__free_page(dev_priv->scratch_page);
 			dev_priv->scratch_page = NULL;
 		}
-		if (dev_priv->has_bo_device) {
-			ttm_bo_device_release(&dev_priv->bdev);
-			dev_priv->has_bo_device = 0;
-		}
-		if (dev_priv->has_fence_device) {
-			ttm_fence_device_release(&dev_priv->fdev);
-			dev_priv->has_fence_device = 0;
-		}
 		if (dev_priv->vdc_reg) {
 			iounmap(dev_priv->vdc_reg);
 			dev_priv->vdc_reg = NULL;
@@ -552,12 +521,6 @@ static int psb_driver_unload(struct drm_device *dev)
 			dev_priv->sgx_reg = NULL;
 		}
 
-		if (dev_priv->tdev)
-			ttm_object_device_release(&dev_priv->tdev);
-
-		if (dev_priv->has_global)
-			psb_ttm_global_release(dev_priv);
-
 		kfree(dev_priv);
 		dev->dev_private = NULL;
 
@@ -565,7 +528,7 @@ static int psb_driver_unload(struct drm_device *dev)
 		psb_intel_destroy_bios(dev);
 	}
 
-	ospm_power_uninit();
+	gma_power_uninit(dev);
 
 	return 0;
 }
@@ -574,49 +537,27 @@ static int psb_driver_unload(struct drm_device *dev)
 static int psb_driver_load(struct drm_device *dev, unsigned long chipset)
 {
 	struct drm_psb_private *dev_priv;
-	struct ttm_bo_device *bdev;
 	unsigned long resource_start;
 	struct psb_gtt *pg;
 	unsigned long irqflags;
 	int ret = -ENOMEM;
 	uint32_t tt_pages;
+	struct drm_connector *connector;
+	struct psb_intel_output *psb_intel_output;
 
 	dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL);
 	if (dev_priv == NULL)
 		return -ENOMEM;
-	INIT_LIST_HEAD(&dev_priv->video_ctx);
-
-	dev_priv->num_pipe = 2;
 
+	if (IS_MRST(dev))
+		dev_priv->num_pipe = 1;
+	else
+		dev_priv->num_pipe = 2;
 
 	dev_priv->dev = dev;
-	bdev = &dev_priv->bdev;
-
-	ret = psb_ttm_global_init(dev_priv);
-	if (unlikely(ret != 0))
-		goto out_err;
-	dev_priv->has_global = 1;
-
-	dev_priv->tdev = ttm_object_device_init
-		(dev_priv->mem_global_ref.object, PSB_OBJECT_HASH_ORDER);
-	if (unlikely(dev_priv->tdev == NULL))
-		goto out_err;
-
-	mutex_init(&dev_priv->temp_mem);
-	mutex_init(&dev_priv->cmdbuf_mutex);
-	mutex_init(&dev_priv->reset_mutex);
-	INIT_LIST_HEAD(&dev_priv->context.validate_list);
-	INIT_LIST_HEAD(&dev_priv->context.kern_validate_list);
-
-/*	mutex_init(&dev_priv->dsr_mutex); */
-
-	spin_lock_init(&dev_priv->reloc_lock);
-
-	DRM_INIT_WAITQUEUE(&dev_priv->rel_mapped_queue);
 
 	dev->dev_private = (void *) dev_priv;
 	dev_priv->chipset = chipset;
-	psb_set_uopt(&dev_priv->uopt);
 
 	PSB_DEBUG_INIT("Mapping MMIO\n");
 	resource_start = pci_resource_start(dev->pdev, PSB_MMIO_RESOURCE);
@@ -626,34 +567,28 @@ static int psb_driver_load(struct drm_device *dev, unsigned long chipset)
 	if (!dev_priv->vdc_reg)
 		goto out_err;
 
-	dev_priv->sgx_reg = ioremap(resource_start + PSB_SGX_OFFSET,
+	if (IS_MRST(dev))
+		dev_priv->sgx_reg = ioremap(resource_start + MRST_SGX_OFFSET,
+							PSB_SGX_SIZE);
+	else
+		dev_priv->sgx_reg = ioremap(resource_start + PSB_SGX_OFFSET,
 							PSB_SGX_SIZE);
 
 	if (!dev_priv->sgx_reg)
 		goto out_err;
 
-	psb_get_core_freq(dev);
-	psb_intel_opregion_init(dev);
-	psb_intel_init_bios(dev);
-
-	PSB_DEBUG_INIT("Init TTM fence and BO driver\n");
+	if (IS_MRST(dev)) {
+		mrst_get_fuse_settings(dev);
+		mrst_get_vbt_data(dev_priv);
+		mid_get_pci_revID(dev_priv);
+	} else {
+		psb_get_core_freq(dev);
+		psb_intel_opregion_init(dev);
+		psb_intel_init_bios(dev);
+	}
 
 	/* Init OSPM support */
-	ospm_power_init(dev);
-
-	ret = psb_ttm_fence_device_init(&dev_priv->fdev);
-	if (unlikely(ret != 0))
-		goto out_err;
-
-	dev_priv->has_fence_device = 1;
-	ret = ttm_bo_device_init(bdev,
-				 dev_priv->bo_global_ref.ref.object,
-				 &psb_ttm_bo_driver,
-				 DRM_PSB_FILE_PAGE_OFFSET, false);
-	if (unlikely(ret != 0))
-		goto out_err;
-	dev_priv->has_bo_device = 1;
-	ttm_lock_init(&dev_priv->ttm_lock);
+	gma_power_init(dev);
 
 	ret = -ENOMEM;
 
@@ -663,15 +598,7 @@ static int psb_driver_load(struct drm_device *dev, unsigned long chipset)
 
 	set_pages_uc(dev_priv->scratch_page, 1);
 
-	dev_priv->pg = psb_gtt_alloc(dev);
-	if (!dev_priv->pg)
-		goto out_err;
-
-	ret = psb_gtt_init(dev_priv->pg, 0);
-	if (ret)
-		goto out_err;
-
-	ret = psb_gtt_mm_init(dev_priv->pg);
+	ret = psb_gtt_init(dev, 0);
 	if (ret)
 		goto out_err;
 
@@ -686,40 +613,6 @@ static int psb_driver_load(struct drm_device *dev, unsigned long chipset)
 	tt_pages = (pg->gatt_pages < PSB_TT_PRIV0_PLIMIT) ?
 		(pg->gatt_pages) : PSB_TT_PRIV0_PLIMIT;
 
-	/* CI/RAR use the lower half of TT. */
-	pg->ci_start = (tt_pages / 2) << PAGE_SHIFT;
-	pg->rar_start = pg->ci_start + pg->ci_stolen_size;
-
-
-	/*
-	 * Make MSVDX/TOPAZ MMU aware of the CI stolen memory area.
-	 */
-	if (dev_priv->pg->ci_stolen_size != 0) {
-		down_read(&pg->sem);
-		ret = psb_mmu_insert_pfn_sequence(psb_mmu_get_default_pd
-				(dev_priv->mmu),
-				dev_priv->ci_region_start >> PAGE_SHIFT,
-				pg->mmu_gatt_start + pg->ci_start,
-				pg->ci_stolen_size >> PAGE_SHIFT, 0);
-		up_read(&pg->sem);
-		if (ret)
-			goto out_err;
-	}
-
-	/*
-	 * Make MSVDX/TOPAZ MMU aware of the rar stolen memory area.
-	 */
-	if (dev_priv->pg->rar_stolen_size != 0) {
-		down_read(&pg->sem);
-		ret = psb_mmu_insert_pfn_sequence(
-				psb_mmu_get_default_pd(dev_priv->mmu),
-				dev_priv->rar_region_start >> PAGE_SHIFT,
-				pg->mmu_gatt_start + pg->rar_start,
-				pg->rar_stolen_size >> PAGE_SHIFT, 0);
-		up_read(&pg->sem);
-		if (ret)
-			goto out_err;
-	}
 
 	dev_priv->pf_pd = psb_mmu_alloc_pd(dev_priv->mmu, 1, 0);
 	if (!dev_priv->pf_pd)
@@ -728,14 +621,13 @@ static int psb_driver_load(struct drm_device *dev, unsigned long chipset)
 	psb_mmu_set_pd_context(psb_mmu_get_default_pd(dev_priv->mmu), 0);
 	psb_mmu_set_pd_context(dev_priv->pf_pd, 1);
 
-	spin_lock_init(&dev_priv->sequence_lock);
-
-	PSB_DEBUG_INIT("Begin to init MSVDX/Topaz\n");
-
 	ret = psb_do_init(dev);
 	if (ret)
 		return ret;
 
+	PSB_WSGX32(0x20000000, PSB_CR_PDS_EXEC_BASE);
+	PSB_WSGX32(0x30000000, PSB_CR_BIF_3D_REQ_BASE);
+
 /*	igd_opregion_init(&dev_priv->opregion_dev); */
 	acpi_video_register();
 	if (dev_priv->lid_state)
@@ -773,7 +665,18 @@ static int psb_driver_load(struct drm_device *dev, unsigned long chipset)
 		drm_kms_helper_poll_init(dev);
 	}
 
-	ret = psb_backlight_init(dev);
+	/* Only add backlight support if we have LVDS output */
+	list_for_each_entry(connector, &dev->mode_config.connector_list,
+			    head) {
+		psb_intel_output = to_psb_intel_output(connector);
+
+		switch (psb_intel_output->type) {
+		case INTEL_OUTPUT_LVDS:
+			ret = psb_backlight_init(dev);
+			break;
+		}
+	}
+
 	if (ret)
 		return ret;
 #if 0
@@ -783,11 +686,6 @@ static int psb_driver_load(struct drm_device *dev, unsigned long chipset)
 #endif
 	/*Intel drm driver load is done, continue doing pvr load*/
 	DRM_DEBUG("Pvr driver load\n");
-
-/*	if (PVRCore_Init() < 0)
-		goto out_err; */
-/*	if (MRSTLFBInit(dev) < 0)
-		goto out_err;*/
 	return 0;
 out_err:
 	psb_driver_unload(dev);
@@ -800,45 +698,6 @@ int psb_driver_device_is_agp(struct drm_device *dev)
 }
 
 
-static int psb_vt_leave_ioctl(struct drm_device *dev, void *data,
-			      struct drm_file *file_priv)
-{
-	struct drm_psb_private *dev_priv = psb_priv(dev);
-	struct ttm_bo_device *bdev = &dev_priv->bdev;
-	struct ttm_mem_type_manager *man;
-	int ret;
-
-	ret = ttm_vt_lock(&dev_priv->ttm_lock, 1,
-			     psb_fpriv(file_priv)->tfile);
-	if (unlikely(ret != 0))
-		return ret;
-
-	ret = ttm_bo_evict_mm(&dev_priv->bdev, TTM_PL_TT);
-	if (unlikely(ret != 0))
-		goto out_unlock;
-
-	man = &bdev->man[TTM_PL_TT];
-
-#if 0		/* What to do with this ? */
-	if (unlikely(!drm_mm_clean(&man->manager)))
-		DRM_INFO("Warning: GATT was not clean after VT switch.\n");
-#endif
-
-	ttm_bo_swapout_all(&dev_priv->bdev);
-
-	return 0;
-out_unlock:
-	(void) ttm_vt_unlock(&dev_priv->ttm_lock);
-	return ret;
-}
-
-static int psb_vt_enter_ioctl(struct drm_device *dev, void *data,
-			      struct drm_file *file_priv)
-{
-	struct drm_psb_private *dev_priv = psb_priv(dev);
-	return ttm_vt_unlock(&dev_priv->ttm_lock);
-}
-
 static int psb_sizes_ioctl(struct drm_device *dev, void *data,
 			   struct drm_file *file_priv)
 {
@@ -945,13 +804,12 @@ static int psb_dpst_ioctl(struct drm_device *dev, void *data,
 	uint32_t y;
 	uint32_t reg;
 
-	if (!ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND,
-							OSPM_UHB_ONLY_IF_ON))
-		return 0;
+	if (!gma_power_begin(dev, 0))
+		return -EIO;
 
 	reg = PSB_RVDC32(PIPEASRC);
 
-	ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+	gma_power_end(dev);
 
 	/* horizontal is the left 16 bits */
 	x = reg >> 16;
@@ -1028,13 +886,12 @@ static int psb_mode_operation_ioctl(struct drm_device *dev, void *data,
 		drm_fb = obj_to_fb(obj);
 		psb_fb = to_psb_fb(drm_fb);
 
-		if (ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND,
-					      OSPM_UHB_ONLY_IF_ON)) {
-			REG_WRITE(DSPASURF, psb_fb->offset);
+		if (gma_power_begin(dev, 0)) {
+			REG_WRITE(DSPASURF, psb_fb->gtt->offset);
 			REG_READ(DSPASURF);
-			ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+			gma_power_end(dev);
 		} else {
-			dev_priv->saveDSPASURF = psb_fb->offset;
+			dev_priv->saveDSPASURF = psb_fb->gtt->offset;
 		}
 
 		return 0;
@@ -1107,8 +964,8 @@ static int psb_stolen_memory_ioctl(struct drm_device *dev, void *data,
 	struct drm_psb_private *dev_priv = psb_priv(dev);
 	struct drm_psb_stolen_memory_arg *arg = data;
 
-	arg->base = dev_priv->pg->stolen_base;
-	arg->size = dev_priv->pg->vram_stolen_size;
+	arg->base = dev_priv->stolen_base;
+	arg->size = dev_priv->vram_stolen_size;
 
 	return 0;
 }
@@ -1118,11 +975,10 @@ static int psb_register_rw_ioctl(struct drm_device *dev, void *data,
 {
 	struct drm_psb_private *dev_priv = psb_priv(dev);
 	struct drm_psb_register_rw_arg *arg = data;
-	UHBUsage usage =
-	  arg->b_force_hw_on ? OSPM_UHB_FORCE_POWER_ON : OSPM_UHB_ONLY_IF_ON;
+	bool usage = arg->b_force_hw_on ? true : false;
 
 	if (arg->display_write_mask != 0) {
-		if (ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND, usage)) {
+		if (gma_power_begin(dev, usage)) {
 			if (arg->display_write_mask & REGRWBITS_PFIT_CONTROLS)
 				PSB_WVDC32(arg->display.pfit_controls,
 					   PFIT_CONTROL);
@@ -1147,7 +1003,7 @@ static int psb_register_rw_ioctl(struct drm_device *dev, void *data,
 			if (arg->display_write_mask & REGRWBITS_VTOTAL_B)
 				PSB_WVDC32(arg->display.vtotal_b,
 					   VTOTAL_B);
-			ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+			gma_power_end(dev);
 		} else {
 			if (arg->display_write_mask & REGRWBITS_PFIT_CONTROLS)
 				dev_priv->savePFIT_CONTROL =
@@ -1172,7 +1028,7 @@ static int psb_register_rw_ioctl(struct drm_device *dev, void *data,
 	}
 
 	if (arg->display_read_mask != 0) {
-		if (ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND, usage)) {
+		if (gma_power_begin(dev, usage)) {
 			if (arg->display_read_mask &
 			    REGRWBITS_PFIT_CONTROLS)
 				arg->display.pfit_controls =
@@ -1193,7 +1049,7 @@ static int psb_register_rw_ioctl(struct drm_device *dev, void *data,
 				arg->display.vtotal_a = PSB_RVDC32(VTOTAL_A);
 			if (arg->display_read_mask & REGRWBITS_VTOTAL_B)
 				arg->display.vtotal_b = PSB_RVDC32(VTOTAL_B);
-			ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+			gma_power_end(dev);
 		} else {
 			if (arg->display_read_mask &
 			    REGRWBITS_PFIT_CONTROLS)
@@ -1219,7 +1075,7 @@ static int psb_register_rw_ioctl(struct drm_device *dev, void *data,
 	}
 
 	if (arg->overlay_write_mask != 0) {
-		if (ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND, usage)) {
+		if (gma_power_begin(dev, usage)) {
 			if (arg->overlay_write_mask & OV_REGRWBITS_OGAM_ALL) {
 				PSB_WVDC32(arg->overlay.OGAMC5, OV_OGAMC5);
 				PSB_WVDC32(arg->overlay.OGAMC4, OV_OGAMC4);
@@ -1270,7 +1126,7 @@ static int psb_register_rw_ioctl(struct drm_device *dev, void *data,
 					}
 				}
 			}
-			ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+			gma_power_end(dev);
 		} else {
 			if (arg->overlay_write_mask & OV_REGRWBITS_OGAM_ALL) {
 				dev_priv->saveOV_OGAMC5 = arg->overlay.OGAMC5;
@@ -1296,7 +1152,7 @@ static int psb_register_rw_ioctl(struct drm_device *dev, void *data,
 	}
 
 	if (arg->overlay_read_mask != 0) {
-		if (ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND, usage)) {
+		if (gma_power_begin(dev, usage)) {
 			if (arg->overlay_read_mask & OV_REGRWBITS_OGAM_ALL) {
 				arg->overlay.OGAMC5 = PSB_RVDC32(OV_OGAMC5);
 				arg->overlay.OGAMC4 = PSB_RVDC32(OV_OGAMC4);
@@ -1317,7 +1173,7 @@ static int psb_register_rw_ioctl(struct drm_device *dev, void *data,
 				arg->overlay.OVADD = PSB_RVDC32(OV_OVADD);
 			if (arg->overlay_read_mask & OVC_REGRWBITS_OVADD)
 				arg->overlay.OVADD = PSB_RVDC32(OVC_OVADD);
-			ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+			gma_power_end(dev);
 		} else {
 			if (arg->overlay_read_mask & OV_REGRWBITS_OGAM_ALL) {
 				arg->overlay.OGAMC5 = dev_priv->saveOV_OGAMC5;
@@ -1343,7 +1199,7 @@ static int psb_register_rw_ioctl(struct drm_device *dev, void *data,
 	}
 
 	if (arg->sprite_enable_mask != 0) {
-		if (ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND, usage)) {
+		if (gma_power_begin(dev, usage)) {
 			PSB_WVDC32(0x1F3E, DSPARB);
 			PSB_WVDC32(arg->sprite.dspa_control
 					| PSB_RVDC32(DSPACNTR), DSPACNTR);
@@ -1358,22 +1214,22 @@ static int psb_register_rw_ioctl(struct drm_device *dev, void *data,
 			PSB_WVDC32(arg->sprite.dspc_size, DSPCSIZE);
 			PSB_WVDC32(arg->sprite.dspc_surface, DSPCSURF);
 			PSB_RVDC32(DSPCSURF);
-			ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+			gma_power_end(dev);
 		}
 	}
 
 	if (arg->sprite_disable_mask != 0) {
-		if (ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND, usage)) {
+		if (gma_power_begin(dev, usage)) {
 			PSB_WVDC32(0x3F3E, DSPARB);
 			PSB_WVDC32(0x0, DSPCCNTR);
 			PSB_WVDC32(arg->sprite.dspc_surface, DSPCSURF);
 			PSB_RVDC32(DSPCSURF);
-			ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+			gma_power_end(dev);
 		}
 	}
 
 	if (arg->subpicture_enable_mask != 0) {
-		if (ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND, usage)) {
+		if (gma_power_begin(dev, usage)) {
 			uint32_t temp;
 			if (arg->subpicture_enable_mask & REGRWBITS_DSPACNTR) {
 				temp =  PSB_RVDC32(DSPACNTR);
@@ -1417,12 +1273,12 @@ static int psb_register_rw_ioctl(struct drm_device *dev, void *data,
 				PSB_WVDC32(temp, DSPCSURF);
 				PSB_RVDC32(DSPCSURF);
 			}
-			ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+			gma_power_end(dev);
 		}
 	}
 
 	if (arg->subpicture_disable_mask != 0) {
-		if (ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND, usage)) {
+		if (gma_power_begin(dev, usage)) {
 			uint32_t temp;
 			if (arg->subpicture_disable_mask & REGRWBITS_DSPACNTR) {
 				temp =  PSB_RVDC32(DSPACNTR);
@@ -1463,42 +1319,20 @@ static int psb_register_rw_ioctl(struct drm_device *dev, void *data,
 				PSB_WVDC32(temp, DSPCSURF);
 				PSB_RVDC32(DSPCSURF);
 			}
-			ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+			gma_power_end(dev);
 		}
 	}
 
 	return 0;
 }
 
-/* always available as we are SIGIO'd */
-static unsigned int psb_poll(struct file *filp,
-			     struct poll_table_struct *wait)
-{
-	return POLLIN | POLLRDNORM;
-}
-
-/* Not sure what we will need yet - in the PVR driver this disappears into
-   a tangle of abstracted handlers and per process crap */
-
-struct psb_priv {
-	int dummy;
-};
-
 static int psb_driver_open(struct drm_device *dev, struct drm_file *priv)
 {
-	struct psb_priv *psb = kzalloc(sizeof(struct psb_priv), GFP_KERNEL);
-	if (psb == NULL)
-		return -ENOMEM;
-	priv->driver_priv = psb;
-	DRM_DEBUG("\n");
-	/*return PVRSRVOpen(dev, priv);*/
 	return 0;
 }
 
 static void psb_driver_close(struct drm_device *dev, struct drm_file *priv)
 {
-	kfree(priv->driver_priv);
-	priv->driver_priv = NULL;
 }
 
 static long psb_unlocked_ioctl(struct file *filp, unsigned int cmd,
@@ -1517,30 +1351,9 @@ static long psb_unlocked_ioctl(struct file *filp, unsigned int cmd,
 		pm_runtime_allow(&dev->pdev->dev);
 		dev_priv->rpm_enabled = 1;
 	}
-	/*
-	 * The driver private ioctls and TTM ioctls should be
-	 * thread-safe.
-	 */
-
-	if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END)
-	     && (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls)) {
-		struct drm_ioctl_desc *ioctl =
-					&psb_ioctls[nr - DRM_COMMAND_BASE];
-
-		if (unlikely(ioctl->cmd != cmd)) {
-			DRM_ERROR(
-				"Invalid drm cmnd %d ioctl->cmd %x, cmd %x\n",
-				nr - DRM_COMMAND_BASE, ioctl->cmd, cmd);
-			return -EINVAL;
-		}
-
-		return drm_ioctl(filp, cmd, arg);
-	}
-	/*
-	 * Not all old drm ioctls are thread-safe.
-	 */
-
 	return drm_ioctl(filp, cmd, arg);
+	
+	/* FIXME: do we need to wrap the other side of this */
 }
 
 
@@ -1557,16 +1370,21 @@ static void psb_remove(struct pci_dev *pdev)
 	drm_put_dev(dev);
 }
 
-
 static const struct dev_pm_ops psb_pm_ops = {
 	.runtime_suspend = psb_runtime_suspend,
 	.runtime_resume = psb_runtime_resume,
 	.runtime_idle = psb_runtime_idle,
 };
 
+static struct vm_operations_struct psb_gem_vm_ops = {
+	.fault = psb_gem_fault,
+	.open = drm_gem_vm_open,
+	.close = drm_gem_vm_close,
+};
+
 static struct drm_driver driver = {
 	.driver_features = DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | \
-			   DRIVER_IRQ_VBL | DRIVER_MODESET,
+			   DRIVER_IRQ_VBL | DRIVER_MODESET| DRIVER_GEM ,
 	.load = psb_driver_load,
 	.unload = psb_driver_unload,
 
@@ -1580,27 +1398,29 @@ static struct drm_driver driver = {
 	.enable_vblank = psb_enable_vblank,
 	.disable_vblank = psb_disable_vblank,
 	.get_vblank_counter = psb_get_vblank_counter,
-	.firstopen = NULL,
 	.lastclose = psb_lastclose,
 	.open = psb_driver_open,
-	.postclose = psb_driver_close,
-#if 0	/* ACFIXME */
-	.get_map_ofs = drm_core_get_map_ofs,
-	.get_reg_ofs = drm_core_get_reg_ofs,
-	.proc_init = psb_proc_init,
-	.proc_cleanup = psb_proc_cleanup,
-#endif
 	.preclose = psb_driver_preclose,
+	.postclose = psb_driver_close,
+	.reclaim_buffers = drm_core_reclaim_buffers,
+
+	.gem_init_object = psb_gem_init_object,
+	.gem_free_object = psb_gem_free_object,
+	.gem_vm_ops = &psb_gem_vm_ops,
+	.dumb_create = psb_gem_dumb_create,
+	.dumb_map_offset = psb_gem_dumb_map_gtt,
+	.dumb_destroy = psb_gem_dumb_destroy,
+
 	.fops = {
 		 .owner = THIS_MODULE,
-		 .open = psb_open,
-		 .release = psb_release,
+		 .open = drm_open,
+		 .release = drm_release,
 		 .unlocked_ioctl = psb_unlocked_ioctl,
-		 .mmap = psb_mmap,
-		 .poll = psb_poll,
+		 .mmap = drm_gem_mmap,
+		 .poll = drm_poll,
 		 .fasync = drm_fasync,
 		 .read = drm_read,
-		 },
+	 },
 	.name = DRIVER_NAME,
 	.desc = DRIVER_DESC,
 	.date = PSB_DRM_DRIVER_DATE,
@@ -1612,8 +1432,8 @@ static struct drm_driver driver = {
 static struct pci_driver psb_pci_driver = {
 	.name = DRIVER_NAME,
 	.id_table = pciidlist,
-	.resume = ospm_power_resume,
-	.suspend = ospm_power_suspend,
+	.resume = gma_power_resume,
+	.suspend = gma_power_suspend,
 	.probe = psb_probe,
 	.remove = psb_remove,
 #ifdef CONFIG_PM
diff --git a/drivers/staging/gma500/psb_drv.h b/drivers/staging/gma500/psb_drv.h
index 29a36056d664..e19a45478757 100644
--- a/drivers/staging/gma500/psb_drv.h
+++ b/drivers/staging/gma500/psb_drv.h
@@ -21,6 +21,7 @@
 #define _PSB_DRV_H_
 
 #include <linux/version.h>
+#include <linux/kref.h>
 
 #include <drm/drmP.h>
 #include "drm_global.h"
@@ -29,22 +30,19 @@
 #include "psb_intel_drv.h"
 #include "psb_gtt.h"
 #include "psb_powermgmt.h"
-#include "ttm/ttm_object.h"
-#include "psb_ttm_fence_driver.h"
-#include "psb_ttm_userobj_api.h"
-#include "ttm/ttm_bo_driver.h"
-#include "ttm/ttm_lock.h"
+#include "mrst.h"
 
 /*Append new drm mode definition here, align with libdrm definition*/
 #define DRM_MODE_SCALE_NO_SCALE   2
 
-extern struct ttm_bo_driver psb_ttm_bo_driver;
-
 enum {
 	CHIP_PSB_8108 = 0,
 	CHIP_PSB_8109 = 1,
+	CHIP_MRST_4100 = 2,
 };
 
+#define IS_MRST(dev) (((dev)->pci_device & 0xfffc) == 0x4100)
+
 /*
  *Hardware bugfixes
  */
@@ -52,10 +50,6 @@ enum {
 #define DRIVER_NAME "pvrsrvkm"
 #define DRIVER_DESC "drm driver for the Intel GMA500"
 #define DRIVER_AUTHOR "Intel Corporation"
-#define OSPM_PROC_ENTRY "ospm"
-#define RTPM_PROC_ENTRY "rtpm"
-#define BLC_PROC_ENTRY "mrst_blc"
-#define DISPLAY_PROC_ENTRY "display_status"
 
 #define PSB_DRM_DRIVER_DATE "2009-03-10"
 #define PSB_DRM_DRIVER_MAJOR 8
@@ -92,26 +86,10 @@ enum {
 #define PSB_TT_PRIV0_PLIMIT	 (PSB_TT_PRIV0_LIMIT >> PAGE_SHIFT)
 #define PSB_NUM_VALIDATE_BUFFERS 2048
 
-#define PSB_MEM_MMU_START       0x00000000
-#define PSB_MEM_TT_START        0xE0000000
-
-#define PSB_GL3_CACHE_CTL	0x2100
-#define PSB_GL3_CACHE_STAT	0x2108
-
 /*
  *Flags for external memory type field.
  */
 
-#define MRST_MSVDX_OFFSET	0x90000	/*MSVDX Base offset */
-#define PSB_MSVDX_OFFSET	0x50000	/*MSVDX Base offset */
-/* MSVDX MMIO region is 0x50000 - 0x57fff ==> 32KB */
-#define PSB_MSVDX_SIZE		0x10000
-
-#define LNC_TOPAZ_OFFSET	0xA0000
-#define PNW_TOPAZ_OFFSET	0xC0000
-#define PNW_GL3_OFFSET		0xB0000
-#define LNC_TOPAZ_SIZE		0x10000
-#define PNW_TOPAZ_SIZE		0x30000 /* PNW VXE285 has two cores */
 #define PSB_MMU_CACHED_MEMORY	  0x0001	/* Bind to MMU only */
 #define PSB_MMU_RO_MEMORY	  0x0002	/* MMU RO memory */
 #define PSB_MMU_WO_MEMORY	  0x0004	/* MMU WO memory */
@@ -223,20 +201,6 @@ enum {
 #define MDFLD_PNW_B0 0x04
 #define MDFLD_PNW_C0 0x08
 
-#define MDFLD_DSR_2D_3D_0 BIT0
-#define MDFLD_DSR_2D_3D_2 BIT1
-#define MDFLD_DSR_CURSOR_0 BIT2
-#define MDFLD_DSR_CURSOR_2 BIT3
-#define MDFLD_DSR_OVERLAY_0 BIT4
-#define MDFLD_DSR_OVERLAY_2 BIT5
-#define MDFLD_DSR_MIPI_CONTROL	BIT6
-#define MDFLD_DSR_2D_3D 	(MDFLD_DSR_2D_3D_0 | MDFLD_DSR_2D_3D_2)
-
-#define MDFLD_DSR_RR 45
-#define MDFLD_DPU_ENABLE BIT31
-#define MDFLD_DSR_FULLSCREEN BIT30
-#define MDFLD_DSR_DELAY (DRM_HZ / MDFLD_DSR_RR)
-
 #define PSB_PWR_STATE_ON		1
 #define PSB_PWR_STATE_OFF		2
 
@@ -250,9 +214,6 @@ enum {
 #define PSB_PCIx_MSI_ADDR_LOC		0x94
 #define PSB_PCIx_MSI_DATA_LOC		0x98
 
-#define MDFLD_PLANE_MAX_WIDTH		2048
-#define MDFLD_PLANE_MAX_HEIGHT		2048
-
 struct opregion_header;
 struct opregion_acpi;
 struct opregion_swsci;
@@ -266,142 +227,55 @@ struct psb_intel_opregion {
 	int enabled;
 };
 
-/*
- *User options.
- */
-
-struct drm_psb_uopt {
-	int pad; /*keep it here in case we use it in future*/
-};
-
-/**
- *struct psb_context
- *
- *@buffers:	 array of pre-allocated validate buffers.
- *@used_buffers: number of buffers in @buffers array currently in use.
- *@validate_buffer: buffers validated from user-space.
- *@kern_validate_buffers : buffers validated from kernel-space.
- *@fence_flags : Fence flags to be used for fence creation.
- *
- *This structure is used during execbuf validation.
- */
-
-struct psb_context {
-	struct psb_validate_buffer *buffers;
-	uint32_t used_buffers;
-	struct list_head validate_list;
-	struct list_head kern_validate_list;
-	uint32_t fence_types;
-	uint32_t val_seq;
-};
-
-struct psb_validate_buffer;
-
-/* Currently defined profiles */
-enum VAProfile {
-	VAProfileMPEG2Simple		= 0,
-	VAProfileMPEG2Main		= 1,
-	VAProfileMPEG4Simple		= 2,
-	VAProfileMPEG4AdvancedSimple	= 3,
-	VAProfileMPEG4Main		= 4,
-	VAProfileH264Baseline		= 5,
-	VAProfileH264Main		= 6,
-	VAProfileH264High		= 7,
-	VAProfileVC1Simple		= 8,
-	VAProfileVC1Main		= 9,
-	VAProfileVC1Advanced		= 10,
-	VAProfileH263Baseline		= 11,
-	VAProfileJPEGBaseline           = 12,
-	VAProfileH264ConstrainedBaseline = 13
-};
-
-/* Currently defined entrypoints */
-enum VAEntrypoint {
-	VAEntrypointVLD		= 1,
-	VAEntrypointIZZ		= 2,
-	VAEntrypointIDCT	= 3,
-	VAEntrypointMoComp	= 4,
-	VAEntrypointDeblocking	= 5,
-	VAEntrypointEncSlice	= 6,	/* slice level encode */
-	VAEntrypointEncPicture 	= 7	/* pictuer encode, JPEG, etc */
-};
-
-
-struct psb_video_ctx {
-	struct list_head head;
-	struct file *filp; /* DRM device file pointer */
-	int ctx_type; /* profile<<8|entrypoint */
-	/* todo: more context specific data for multi-context support */
-};
-
-#define MODE_SETTING_IN_CRTC 	0x1
-#define MODE_SETTING_IN_ENCODER 0x2
-#define MODE_SETTING_ON_GOING 	0x3
-#define MODE_SETTING_IN_DSR 	0x4
-#define MODE_SETTING_ENCODER_DONE 0x8
-#define GCT_R10_HEADER_SIZE	16
-#define GCT_R10_DISPLAY_DESC_SIZE	28
 
 struct drm_psb_private {
-	/*
-	 * DSI info.
-	 */
-	void * dbi_dsr_info;
-	void * dsi_configs[2];
-
-	/*
-	 *TTM Glue.
-	 */
-
-	struct drm_global_reference mem_global_ref;
-	struct ttm_bo_global_ref bo_global_ref;
-	int has_global;
-
 	struct drm_device *dev;
-	struct ttm_object_device *tdev;
-	struct ttm_fence_device fdev;
-	struct ttm_bo_device bdev;
-	struct ttm_lock ttm_lock;
-	struct vm_operations_struct *ttm_vm_ops;
-	int has_fence_device;
-	int has_bo_device;
 
 	unsigned long chipset;
 
-	struct drm_psb_uopt uopt;
-
 	struct psb_gtt *pg;
 
-	/*GTT Memory manager*/
+	/* GTT Memory manager */
 	struct psb_gtt_mm *gtt_mm;
-
 	struct page *scratch_page;
-	uint32_t sequence[PSB_NUM_ENGINES];
-	uint32_t last_sequence[PSB_NUM_ENGINES];
-	uint32_t last_submitted_seq[PSB_NUM_ENGINES];
+	u32 *gtt_map;
+	uint32_t stolen_base;
+	void *vram_addr;
+	unsigned long vram_stolen_size;
+	int gtt_initialized;
+	u16 gmch_ctrl;		/* Saved GTT setup */
+	u32 pge_ctl;
+
+	struct mutex gtt_mutex;
+	struct resource *gtt_mem;	/* Our PCI resource */
 
 	struct psb_mmu_driver *mmu;
 	struct psb_mmu_pd *pf_pd;
 
+	/*
+	 * Register base
+	 */
+
 	uint8_t *sgx_reg;
 	uint8_t *vdc_reg;
 	uint32_t gatt_free_offset;
 
-	/* IMG video context */
-	struct list_head video_ctx;
-
-
-
 	/*
-	 *Fencing / irq.
+	 * Fencing / irq.
 	 */
 
 	uint32_t vdc_irq_mask;
 	uint32_t pipestat[PSB_NUM_PIPE];
-	bool vblanksEnabledForFlips;
 
 	spinlock_t irqmask_lock;
-	spinlock_t sequence_lock;
+
+	/*
+	 * Power
+         */
+
+	bool suspended;
+	bool display_power;
+	int display_count;
 
 	/*
 	 *Modesetting
@@ -413,40 +287,9 @@ struct drm_psb_private {
 	uint32_t num_pipe;
 
 	/*
-	 * CI share buffer
-	 */
-	unsigned int ci_region_start;
-	unsigned int ci_region_size;
-
-	/*
-	 * RAR share buffer;
-	 */
-	unsigned int rar_region_start;
-	unsigned int rar_region_size;
-
-	/*
 	 *Memory managers
 	 */
 
-	int have_camera;
-	int have_rar;
-	int have_tt;
-	int have_mem_mmu;
-	struct mutex temp_mem;
-
-	/*
-	 *Relocation buffer mapping.
-	 */
-
-	spinlock_t reloc_lock;
-	unsigned int rel_mapped_pages;
-	wait_queue_head_t rel_mapped_queue;
-
-	/*
-	 *SAREA
-	 */
-	struct drm_psb_sarea *sarea_priv;
-
 	/*
 	*OSPM info
 	*/
@@ -458,7 +301,8 @@ struct drm_psb_private {
 
 	struct drm_psb_sizes_arg sizes;
 
-	uint32_t fuse_reg_value;
+	u32 fuse_reg_value;
+	u32 video_device_fuse;
 
 	/* pci revision id for B0:D2:F0 */
 	uint8_t platform_rev_id;
@@ -483,6 +327,7 @@ struct drm_psb_private {
 	unsigned int lvds_use_ssc:1;
 	int lvds_ssc_freq;
 	bool is_lvds_on;
+	bool is_mipi_on;
 
 	unsigned int core_freq;
 	uint32_t iLVDS_enable;
@@ -490,6 +335,20 @@ struct drm_psb_private {
 	/*runtime PM state*/
 	int rpm_enabled;
 
+	/* Moorestown specific */
+	struct mrst_vbt vbt_data;
+	struct mrst_gct_data gct_data;
+
+	/* Moorestown pipe config register value cache */
+	uint32_t pipeconf;
+	uint32_t pipeconf1;
+	uint32_t pipeconf2;
+
+	/* Moorestown plane control register value cache */
+	uint32_t dspcntr;
+	uint32_t dspcntr1;
+	uint32_t dspcntr2;
+
 	/*
 	 *Register state
 	 */
@@ -595,98 +454,11 @@ struct drm_psb_private {
 	uint32_t saveOVC_OGAMC4;
 	uint32_t saveOVC_OGAMC5;
 
-	/*
-	 * extra MDFLD Register state
-	 */
-	uint32_t saveHDMIPHYMISCCTL;
-	uint32_t saveHDMIB_CONTROL;
-	uint32_t saveDSPCCNTR;
-	uint32_t savePIPECCONF;
-	uint32_t savePIPECSRC;
-	uint32_t saveHTOTAL_C;
-	uint32_t saveHBLANK_C;
-	uint32_t saveHSYNC_C;
-	uint32_t saveVTOTAL_C;
-	uint32_t saveVBLANK_C;
-	uint32_t saveVSYNC_C;
-	uint32_t saveDSPCSTRIDE;
-	uint32_t saveDSPCSIZE;
-	uint32_t saveDSPCPOS;
-	uint32_t saveDSPCSURF;
-	uint32_t saveDSPCLINOFF;
-	uint32_t saveDSPCTILEOFF;
-	uint32_t saveDSPCCURSOR_CTRL;
-	uint32_t saveDSPCCURSOR_BASE;
-	uint32_t saveDSPCCURSOR_POS;
-	uint32_t save_palette_c[256];
-	uint32_t saveOV_OVADD_C;
-	uint32_t saveOV_OGAMC0_C;
-	uint32_t saveOV_OGAMC1_C;
-	uint32_t saveOV_OGAMC2_C;
-	uint32_t saveOV_OGAMC3_C;
-	uint32_t saveOV_OGAMC4_C;
-	uint32_t saveOV_OGAMC5_C;
-
-	/* DSI reg save */
-	uint32_t saveDEVICE_READY_REG;
-	uint32_t saveINTR_EN_REG;
-	uint32_t saveDSI_FUNC_PRG_REG;
-	uint32_t saveHS_TX_TIMEOUT_REG;
-	uint32_t saveLP_RX_TIMEOUT_REG;
-	uint32_t saveTURN_AROUND_TIMEOUT_REG;
-	uint32_t saveDEVICE_RESET_REG;
-	uint32_t saveDPI_RESOLUTION_REG;
-	uint32_t saveHORIZ_SYNC_PAD_COUNT_REG;
-	uint32_t saveHORIZ_BACK_PORCH_COUNT_REG;
-	uint32_t saveHORIZ_FRONT_PORCH_COUNT_REG;
-	uint32_t saveHORIZ_ACTIVE_AREA_COUNT_REG;
-	uint32_t saveVERT_SYNC_PAD_COUNT_REG;
-	uint32_t saveVERT_BACK_PORCH_COUNT_REG;
-	uint32_t saveVERT_FRONT_PORCH_COUNT_REG;
-	uint32_t saveHIGH_LOW_SWITCH_COUNT_REG;
-	uint32_t saveINIT_COUNT_REG;
-	uint32_t saveMAX_RET_PAK_REG;
-	uint32_t saveVIDEO_FMT_REG;
-	uint32_t saveEOT_DISABLE_REG;
-	uint32_t saveLP_BYTECLK_REG;
-	uint32_t saveHS_LS_DBI_ENABLE_REG;
-	uint32_t saveTXCLKESC_REG;
-	uint32_t saveDPHY_PARAM_REG;
-	uint32_t saveMIPI_CONTROL_REG;
-	uint32_t saveMIPI;
-	uint32_t saveMIPI_C;
-	void (*init_drvIC)(struct drm_device *dev);
-	void (*dsi_prePowerState)(struct drm_device *dev);
-	void (*dsi_postPowerState)(struct drm_device *dev);
-
-	/* DPST Register Save */
-	uint32_t saveHISTOGRAM_INT_CONTROL_REG;
-	uint32_t saveHISTOGRAM_LOGIC_CONTROL_REG;
-	uint32_t savePWM_CONTROL_LOGIC;
-
 	/* MSI reg save */
-
 	uint32_t msi_addr;
 	uint32_t msi_data;
 
 	/*
-	 *Scheduling.
-	 */
-
-	struct mutex reset_mutex;
-	struct mutex cmdbuf_mutex;
-	/*uint32_t ta_mem_pages;
-	struct psb_ta_mem *ta_mem;
-	int force_ta_mem_load;*/
-	atomic_t val_seq;
-
-	/*
-	 *TODO: change this to be per drm-context.
-	 */
-
-	struct psb_context context;
-
-	/*
 	 * LID-Switch
 	 */
 	spinlock_t lid_lock;
@@ -699,8 +471,6 @@ struct drm_psb_private {
 	 *Watchdog
 	 */
 
-	int timer_available;
-
 	uint32_t apm_reg;
 	uint16_t apm_base;
 
@@ -716,73 +486,17 @@ struct drm_psb_private {
 };
 
 
-struct psb_file_data {	/* TODO: Audit this, remove the indirection and set
-			   it up properly in open/postclose  ACFIXME */
-	void *priv;
-};
-
-struct psb_fpriv {
-	struct ttm_object_file *tfile;
-};
-
 struct psb_mmu_driver;
 
 extern int drm_crtc_probe_output_modes(struct drm_device *dev, int, int);
 extern int drm_pick_crtcs(struct drm_device *dev);
 
-static inline struct psb_fpriv *psb_fpriv(struct drm_file *file_priv)
-{
-	struct psb_file_data *pvr_file_priv
-			= (struct psb_file_data *)file_priv->driver_priv;
-	return (struct psb_fpriv *) pvr_file_priv->priv;
-}
-
 static inline struct drm_psb_private *psb_priv(struct drm_device *dev)
 {
 	return (struct drm_psb_private *) dev->dev_private;
 }
 
 /*
- *TTM glue. psb_ttm_glue.c
- */
-
-extern int psb_open(struct inode *inode, struct file *filp);
-extern int psb_release(struct inode *inode, struct file *filp);
-extern int psb_mmap(struct file *filp, struct vm_area_struct *vma);
-
-extern int psb_fence_signaled_ioctl(struct drm_device *dev, void *data,
-				    struct drm_file *file_priv);
-extern int psb_verify_access(struct ttm_buffer_object *bo,
-			     struct file *filp);
-extern ssize_t psb_ttm_read(struct file *filp, char __user *buf,
-			    size_t count, loff_t *f_pos);
-extern ssize_t psb_ttm_write(struct file *filp, const char __user *buf,
-			    size_t count, loff_t *f_pos);
-extern int psb_fence_finish_ioctl(struct drm_device *dev, void *data,
-				  struct drm_file *file_priv);
-extern int psb_fence_unref_ioctl(struct drm_device *dev, void *data,
-				 struct drm_file *file_priv);
-extern int psb_pl_waitidle_ioctl(struct drm_device *dev, void *data,
-				 struct drm_file *file_priv);
-extern int psb_pl_setstatus_ioctl(struct drm_device *dev, void *data,
-				  struct drm_file *file_priv);
-extern int psb_pl_synccpu_ioctl(struct drm_device *dev, void *data,
-				struct drm_file *file_priv);
-extern int psb_pl_unref_ioctl(struct drm_device *dev, void *data,
-			      struct drm_file *file_priv);
-extern int psb_pl_reference_ioctl(struct drm_device *dev, void *data,
-				  struct drm_file *file_priv);
-extern int psb_pl_create_ioctl(struct drm_device *dev, void *data,
-			       struct drm_file *file_priv);
-extern int psb_pl_ub_create_ioctl(struct drm_device *dev, void *data,
-			       struct drm_file *file_priv);
-extern int psb_extension_ioctl(struct drm_device *dev, void *data,
-			       struct drm_file *file_priv);
-extern int psb_ttm_global_init(struct drm_psb_private *dev_priv);
-extern void psb_ttm_global_release(struct drm_psb_private *dev_priv);
-extern int psb_getpageaddrs_ioctl(struct drm_device *dev, void *data,
-				struct drm_file *file_priv);
-/*
  *MMU stuff.
  */
 
@@ -825,31 +539,6 @@ extern void psb_mmu_remove_pages(struct psb_mmu_pd *pd,
 				 uint32_t desired_tile_stride,
 				 uint32_t hw_tile_stride);
 /*
- *psb_sgx.c
- */
-
-
-
-extern int psb_cmdbuf_ioctl(struct drm_device *dev, void *data,
-			    struct drm_file *file_priv);
-extern int psb_reg_submit(struct drm_psb_private *dev_priv,
-			  uint32_t *regs, unsigned int cmds);
-
-
-extern void psb_fence_or_sync(struct drm_file *file_priv,
-			      uint32_t engine,
-			      uint32_t fence_types,
-			      uint32_t fence_flags,
-			      struct list_head *list,
-			      struct psb_ttm_fence_rep *fence_arg,
-			      struct ttm_fence_object **fence_p);
-extern int psb_validate_kernel_buffer(struct psb_context *context,
-				      struct ttm_buffer_object *bo,
-				      uint32_t fence_class,
-				      uint64_t set_flags,
-				      uint64_t clr_flags);
-
-/*
  *psb_irq.c
  */
 
@@ -859,8 +548,6 @@ extern int psb_irq_disable_dpst(struct drm_device *dev);
 extern void psb_irq_preinstall(struct drm_device *dev);
 extern int psb_irq_postinstall(struct drm_device *dev);
 extern void psb_irq_uninstall(struct drm_device *dev);
-extern void psb_irq_preinstall_islands(struct drm_device *dev, int hw_islands);
-extern int psb_irq_postinstall_islands(struct drm_device *dev, int hw_islands);
 extern void psb_irq_turn_on_dpst(struct drm_device *dev);
 extern void psb_irq_turn_off_dpst(struct drm_device *dev);
 
@@ -878,29 +565,6 @@ psb_disable_pipestat(struct drm_psb_private *dev_priv, int pipe, u32 mask);
 extern u32 psb_get_vblank_counter(struct drm_device *dev, int crtc);
 
 /*
- *psb_fence.c
- */
-
-extern void psb_fence_handler(struct drm_device *dev, uint32_t class);
-
-extern int psb_fence_emit_sequence(struct ttm_fence_device *fdev,
-				   uint32_t fence_class,
-				   uint32_t flags, uint32_t *sequence,
-				   unsigned long *timeout_jiffies);
-extern void psb_fence_error(struct drm_device *dev,
-			    uint32_t class,
-			    uint32_t sequence, uint32_t type, int error);
-extern int psb_ttm_fence_device_init(struct ttm_fence_device *fdev);
-
-/* MSVDX/Topaz stuff */
-extern int psb_remove_videoctx(struct drm_psb_private *dev_priv, struct file *filp);
-
-extern int lnc_video_frameskip(struct drm_device *dev,
-			       uint64_t user_pointer);
-extern int lnc_video_getparam(struct drm_device *dev, void *data,
-			      struct drm_file *file_priv);
-
-/*
  * psb_opregion.c
  */
 extern int psb_intel_opregion_init(struct drm_device *dev);
@@ -930,6 +594,9 @@ extern int psbfb_sync(struct fb_info *info);
 
 extern void psb_spank(struct drm_psb_private *dev_priv);
 
+extern int psbfb_2d_submit(struct drm_psb_private *dev_priv, uint32_t *cmdbuf,
+	 	  	   unsigned size);
+
 /*
  *psb_reset.c
  */
@@ -950,8 +617,36 @@ int psb_set_brightness(struct backlight_device *bd);
 int psb_get_brightness(struct backlight_device *bd);
 struct backlight_device * psb_get_backlight_device(void);
 
+/* mrst_crtc.c */
+extern const struct drm_crtc_helper_funcs mrst_helper_funcs;
+
+/* mrst_lvds.c */
+extern void mrst_lvds_init(struct drm_device *dev,
+		    struct psb_intel_mode_device *mode_dev);
+
+/* psb_intel_lvds.c */
+extern void psb_intel_lvds_prepare(struct drm_encoder *encoder);
+extern void psb_intel_lvds_commit(struct drm_encoder *encoder);
+extern const struct drm_connector_helper_funcs
+					psb_intel_lvds_connector_helper_funcs;
+extern const struct drm_connector_funcs psb_intel_lvds_connector_funcs;
+
+/* psb_gem.c */
+extern int psb_gem_init_object(struct drm_gem_object *obj);
+extern void psb_gem_free_object(struct drm_gem_object *obj);
+extern int psb_gem_get_aperture(struct drm_device *dev, void *data,
+				struct drm_file *file);
+extern int psb_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
+			struct drm_mode_create_dumb *args);
+extern int psb_gem_dumb_destroy(struct drm_file *file, struct drm_device *dev,
+			uint32_t handle);
+extern int psb_gem_dumb_map_gtt(struct drm_file *file, struct drm_device *dev,
+			 uint32_t handle, uint64_t *offset);
+extern int psb_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
+
+
 /*
- *Debug print bits setting
+ * Debug print bits setting
  */
 #define PSB_D_GENERAL (1 << 0)
 #define PSB_D_INIT    (1 << 1)
@@ -975,7 +670,6 @@ struct backlight_device * psb_get_backlight_device(void);
 
 extern int drm_psb_debug;
 extern int drm_psb_no_fb;
-extern int drm_psb_disable_vsync;
 extern int drm_idle_check_interval;
 
 #define PSB_DEBUG_GENERAL(_fmt, _arg...) \
diff --git a/drivers/staging/gma500/psb_fb.c b/drivers/staging/gma500/psb_fb.c
index f67f53b12937..084c36bbfe86 100644
--- a/drivers/staging/gma500/psb_fb.c
+++ b/drivers/staging/gma500/psb_fb.c
@@ -36,10 +36,7 @@
 #include "psb_drv.h"
 #include "psb_intel_reg.h"
 #include "psb_intel_drv.h"
-#include "psb_ttm_userobj_api.h"
 #include "psb_fb.h"
-#include "psb_sgx.h"
-#include "psb_pvr_glue.h"
 
 static void psb_user_framebuffer_destroy(struct drm_framebuffer *fb);
 static int psb_user_framebuffer_create_handle(struct drm_framebuffer *fb,
@@ -193,8 +190,7 @@ static int psbfb_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 	struct psb_framebuffer *psbfb = vma->vm_private_data;
 	struct drm_device *dev = psbfb->base.dev;
 	struct drm_psb_private *dev_priv = dev->dev_private;
-	struct psb_gtt *pg = dev_priv->pg;
-	unsigned long phys_addr = (unsigned long)pg->stolen_base;;
+	unsigned long phys_addr = (unsigned long)dev_priv->stolen_base;
 
 	page_num = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
 
@@ -243,7 +239,6 @@ static int psbfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
 	char *fb_screen_base = NULL;
 	struct drm_device *dev = psbfb->base.dev;
 	struct drm_psb_private *dev_priv = dev->dev_private;
-	struct psb_gtt *pg = dev_priv->pg;
 
 	if (vma->vm_pgoff != 0)
 		return -EINVAL;
@@ -256,22 +251,48 @@ static int psbfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
 	fb_screen_base = (char *)info->screen_base;
 
 	DRM_DEBUG("vm_pgoff 0x%lx, screen base %p vram_addr %p\n",
-				vma->vm_pgoff, fb_screen_base, pg->vram_addr);
+				vma->vm_pgoff, fb_screen_base,
+                                dev_priv->vram_addr);
 
-	/*if using stolen memory, */
-	if (fb_screen_base == pg->vram_addr) {
+        /* FIXME: ultimately this needs to become 'if entirely stolen memory' */
+	if (1 || fb_screen_base == dev_priv->vram_addr) {
 		vma->vm_ops = &psbfb_vm_ops;
 		vma->vm_private_data = (void *)psbfb;
 		vma->vm_flags |= VM_RESERVED | VM_IO |
 						VM_MIXEDMAP | VM_DONTEXPAND;
 	} else {
-	/*using IMG meminfo, can I use pvrmmap to map it?*/
-
+	        /* GTT memory backed by kernel/user pages, needs a different
+	           approach ? - GEM ? */
 	}
 
 	return 0;
 }
 
+static int psbfb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
+{
+	struct psb_fbdev *fbdev = info->par;
+	struct psb_framebuffer *psbfb = fbdev->pfb;
+	struct drm_device *dev = psbfb->base.dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	u32 __user *p = (u32 __user *)arg;
+	u32 l;
+	u32 buf[32];
+	switch (cmd) {
+	case 0x12345678:
+		if (!capable(CAP_SYS_RAWIO))
+			return -EPERM;
+		if (get_user(l, p))
+			return -EFAULT;
+		if (l > 32)
+			return -EMSGSIZE;
+		if (copy_from_user(buf, p + 1, l * sizeof(u32)))
+			return -EFAULT;
+		psbfb_2d_submit(dev_priv, buf, l);
+		return 0;
+	default:
+		return -ENOTTY;
+	}
+}
 
 static struct fb_ops psbfb_ops = {
 	.owner = THIS_MODULE,
@@ -284,11 +305,12 @@ static struct fb_ops psbfb_ops = {
 	.fb_imageblit = psbfb_imageblit,
 	.fb_mmap = psbfb_mmap,
 	.fb_sync = psbfb_sync,
+	.fb_ioctl = psbfb_ioctl,
 };
 
 static struct drm_framebuffer *psb_framebuffer_create
 			(struct drm_device *dev, struct drm_mode_fb_cmd *r,
-			 void *mm_private)
+			 struct gtt_range *gt)
 {
 	struct psb_framebuffer *fb;
 	int ret;
@@ -304,7 +326,7 @@ static struct drm_framebuffer *psb_framebuffer_create
 
 	drm_helper_mode_fill_fb_struct(&fb->base, r);
 
-	fb->bo = mm_private;
+	fb->gtt = gt;
 
 	return &fb->base;
 
@@ -313,136 +335,58 @@ err:
 	return NULL;
 }
 
-static struct drm_framebuffer *psb_user_framebuffer_create
-			(struct drm_device *dev, struct drm_file *filp,
-			 struct drm_mode_fb_cmd *r)
-{
-	struct ttm_buffer_object *bo = NULL;
-	uint64_t size;
-
-	bo = ttm_buffer_object_lookup(psb_fpriv(filp)->tfile, r->handle);
-	if (!bo)
-		return NULL;
-
-	/* JB: TODO not drop, make smarter */
-	size = ((uint64_t) bo->num_pages) << PAGE_SHIFT;
-	if (size < r->width * r->height * 4)
-		return NULL;
-
-	/* JB: TODO not drop, refcount buffer */
-	return psb_framebuffer_create(dev, r, bo);
-
-#if 0
-	struct psb_framebuffer *psbfb;
-	struct drm_framebuffer *fb;
-	struct fb_info *info;
-	void *psKernelMemInfo = NULL;
-	void * hKernelMemInfo = (void *)r->handle;
-	struct drm_psb_private *dev_priv
-		= (struct drm_psb_private *)dev->dev_private;
-	struct psb_fbdev *fbdev = dev_priv->fbdev;
-	struct psb_gtt *pg = dev_priv->pg;
-	int ret;
-	uint32_t offset;
-	uint64_t size;
-
-	ret = psb_get_meminfo_by_handle(hKernelMemInfo, &psKernelMemInfo);
-	if (ret) {
-		DRM_ERROR("Cannot get meminfo for handle 0x%x\n",
-						(u32)hKernelMemInfo);
-		return NULL;
-	}
-
-	DRM_DEBUG("Got Kernel MemInfo for handle %lx\n",
-		  (u32)hKernelMemInfo);
-
-	/* JB: TODO not drop, make smarter */
-	size = psKernelMemInfo->ui32AllocSize;
-	if (size < r->height * r->pitch)
+/**
+ *	psbfb_alloc		-	allocate frame buffer memory
+ *	@dev: the DRM device
+ *	@aligned_size: space needed
+ *
+ *	Allocate the frame buffer. In the usual case we get a GTT range that
+ *	is stolen memory backed and life is simple. If there isn't sufficient
+ *	stolen memory or the system has no stolen memory we allocate a range
+ *	and back it with a GEM object.
+ *
+ *	In this case the GEM object has no handle. 
+ */
+static struct gtt_range *psbfb_alloc(struct drm_device *dev, int aligned_size)
+{
+	struct gtt_range *backing;
+	/* Begin by trying to use stolen memory backing */
+	backing = psb_gtt_alloc_range(dev, aligned_size, "fb", 1);
+	if (backing)
+		return backing;
+	/* Next try using GEM host memory */
+	backing = psb_gtt_alloc_range(dev, aligned_size, "fb(gem)", 0);
+	if (backing == NULL)
 		return NULL;
 
-	/* JB: TODO not drop, refcount buffer */
-	/* return psb_framebuffer_create(dev, r, bo); */
-
-	fb = psb_framebuffer_create(dev, r, (void *)psKernelMemInfo);
-	if (!fb) {
-		DRM_ERROR("failed to allocate fb.\n");
+	/* Now back it with an object */
+	if (drm_gem_object_init(dev, &backing->gem, aligned_size) != 0) {
+		psb_gtt_free_range(dev, backing);
 		return NULL;
 	}
-
-	psbfb = to_psb_fb(fb);
-	psbfb->size = size;
-	psbfb->hKernelMemInfo = hKernelMemInfo;
-
-	DRM_DEBUG("Mapping to gtt..., KernelMemInfo %p\n", psKernelMemInfo);
-
-	/*if not VRAM, map it into tt aperture*/
-	if (psKernelMemInfo->pvLinAddrKM != pg->vram_addr) {
-		ret = psb_gtt_map_meminfo(dev, hKernelMemInfo, &offset);
-		if (ret) {
-			DRM_ERROR("map meminfo for 0x%x failed\n",
-				  (u32)hKernelMemInfo);
-			return NULL;
-		}
-		psbfb->offset = (offset << PAGE_SHIFT);
-	} else {
-		psbfb->offset = 0;
-	}
-	info = framebuffer_alloc(0, &dev->pdev->dev);
-	if (!info)
-		return NULL;
-
-	strcpy(info->fix.id, "psbfb");
-
-	info->flags = FBINFO_DEFAULT;
-	info->fix.accel = FB_ACCEL_I830;	/*FIXMEAC*/
-	info->fbops = &psbfb_ops;
-
-	info->fix.smem_start = dev->mode_config.fb_base;
-	info->fix.smem_len = size;
-
-	info->screen_base = psKernelMemInfo->pvLinAddrKM;
-	info->screen_size = size;
-
-	drm_fb_helper_fill_fix(info, fb->pitch, fb->depth);
-	drm_fb_helper_fill_var(info, &fbdev->psb_fb_helper,
-							fb->width, fb->height);
-
-	info->fix.mmio_start = pci_resource_start(dev->pdev, 0);
-	info->fix.mmio_len = pci_resource_len(dev->pdev, 0);
-
-	info->pixmap.size = 64 * 1024;
-	info->pixmap.buf_align = 8;
-	info->pixmap.access_align = 32;
-	info->pixmap.flags = FB_PIXMAP_SYSTEM;
-	info->pixmap.scan_align = 1;
-
-	psbfb->fbdev = info;
-	fbdev->pfb = psbfb;
-
-	fbdev->psb_fb_helper.fb = fb;
-	fbdev->psb_fb_helper.fbdev = info;
-	MRSTLFBHandleChangeFB(dev, psbfb);
-
-	return fb;
-#endif
+	return backing;
 }
-
+	
+/**
+ *	psbfb_create		-	create a framebuffer
+ *	@fbdev: the framebuffer device
+ *	@sizes: specification of the layout
+ *
+ *	Create a framebuffer to the specifications provided
+ */
 static int psbfb_create(struct psb_fbdev *fbdev,
 				struct drm_fb_helper_surface_size *sizes)
 {
 	struct drm_device *dev = fbdev->psb_fb_helper.dev;
 	struct drm_psb_private *dev_priv = dev->dev_private;
-	struct psb_gtt *pg = dev_priv->pg;
 	struct fb_info *info;
 	struct drm_framebuffer *fb;
 	struct psb_framebuffer *psbfb;
 	struct drm_mode_fb_cmd mode_cmd;
 	struct device *device = &dev->pdev->dev;
-
-	struct ttm_buffer_object *fbo = NULL;
 	int size, aligned_size;
 	int ret;
+	struct gtt_range *backing;
 
 	mode_cmd.width = sizes->surface_width;
 	mode_cmd.height = sizes->surface_height;
@@ -455,15 +399,19 @@ static int psbfb_create(struct psb_fbdev *fbdev,
 	size = mode_cmd.pitch * mode_cmd.height;
 	aligned_size = ALIGN(size, PAGE_SIZE);
 
+	/* Allocate the framebuffer in the GTT with stolen page backing */
+	backing = psbfb_alloc(dev, aligned_size);
+	if (backing == NULL)
+	        return -ENOMEM;
+
 	mutex_lock(&dev->struct_mutex);
-	fb = psb_framebuffer_create(dev, &mode_cmd, fbo);
+	fb = psb_framebuffer_create(dev, &mode_cmd, backing);
 	if (!fb) {
 		DRM_ERROR("failed to allocate fb.\n");
 		ret = -ENOMEM;
 		goto out_err1;
 	}
 	psbfb = to_psb_fb(fb);
-	psbfb->size = size;
 
 	info = framebuffer_alloc(sizeof(struct psb_fbdev), device);
 	if (!info) {
@@ -485,10 +433,24 @@ static int psbfb_create(struct psb_fbdev *fbdev,
 	info->fbops = &psbfb_ops;
 	info->fix.smem_start = dev->mode_config.fb_base;
 	info->fix.smem_len = size;
-	info->screen_base = (char *)pg->vram_addr;
+
+	/* Accessed via stolen memory directly, This only works for stolem
+	   memory however. Need to address this once we start using gtt
+	   pages we allocate */
+	info->screen_base = (char *)dev_priv->vram_addr + backing->offset;
 	info->screen_size = size;
 	memset(info->screen_base, 0, size);
 
+	if (dev_priv->pg->stolen_size) {
+		info->apertures = alloc_apertures(1);
+		if (!info->apertures) {
+			ret = -ENOMEM;
+			goto out_err0;
+		}
+		info->apertures->ranges[0].base = dev->mode_config.fb_base;
+		info->apertures->ranges[0].size = dev_priv->pg->stolen_size;
+	}
+
 	drm_fb_helper_fill_fix(info, fb->pitch, fb->depth);
 	drm_fb_helper_fill_var(info, &fbdev->psb_fb_helper,
 				sizes->fb_width, sizes->fb_height);
@@ -515,9 +477,51 @@ out_err0:
 	fb->funcs->destroy(fb);
 out_err1:
 	mutex_unlock(&dev->struct_mutex);
+	psb_gtt_free_range(dev, backing);
 	return ret;
 }
 
+/**
+ *	psb_user_framebuffer_create	-	create framebuffer
+ *	@dev: our DRM device
+ *	@filp: client file
+ *	@cmd: mode request
+ *
+ *	Create a new framebuffer backed by a userspace GEM object
+ */
+static struct drm_framebuffer *psb_user_framebuffer_create
+			(struct drm_device *dev, struct drm_file *filp,
+			 struct drm_mode_fb_cmd *cmd)
+{
+        struct gtt_range *r;
+        struct drm_gem_object *obj;
+        struct psb_framebuffer *psbfb;
+
+        /* Find the GEM object and thus the gtt range object that is
+           to back this space */
+	obj = drm_gem_object_lookup(dev, filp, cmd->handle);
+	if (obj == NULL)
+	        return ERR_PTR(-ENOENT);
+
+        /* Allocate a framebuffer */
+        psbfb = kzalloc(sizeof(*psbfb), GFP_KERNEL);
+        if (psbfb == NULL) {
+                drm_gem_object_unreference_unlocked(obj);
+                return ERR_PTR(-ENOMEM);
+        }
+        
+        /* Let the core code do all the work */
+        r = container_of(obj, struct gtt_range, gem);
+	if (psb_framebuffer_create(dev, cmd, r) == NULL) {
+                drm_gem_object_unreference_unlocked(obj);
+                kfree(psbfb);
+                return ERR_PTR(-EINVAL);
+        }
+        /* Return the drm_framebuffer contained within the psb fbdev which
+           has been initialized by the framebuffer creation */
+        return &psbfb->base;
+}
+
 static void psbfb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
 							u16 blue, int regno)
 {
@@ -561,15 +565,20 @@ int psb_fbdev_destroy(struct drm_device *dev, struct psb_fbdev *fbdev)
 
 	if (fbdev->psb_fb_helper.fbdev) {
 		info = fbdev->psb_fb_helper.fbdev;
+		/* FIXME: this is a bit more inside knowledge than I'd like
+		   but I don't see how to make a fake GEM object of the
+		   stolen space nicely */
+		if (psbfb->gtt->stolen)
+			psb_gtt_free_range(dev, psbfb->gtt);
+		else
+			drm_gem_object_unreference(&psbfb->gtt->gem);
 		unregister_framebuffer(info);
 		iounmap(info->screen_base);
 		framebuffer_release(info);
 	}
 
 	drm_fb_helper_fini(&fbdev->psb_fb_helper);
-
 	drm_framebuffer_cleanup(&psbfb->base);
-
 	return 0;
 }
 
@@ -610,7 +619,6 @@ void psb_fbdev_fini(struct drm_device *dev)
 	dev_priv->fbdev = NULL;
 }
 
-
 static void psbfb_output_poll_changed(struct drm_device *dev)
 {
 	struct drm_psb_private *dev_priv = dev->dev_private;
@@ -627,7 +635,6 @@ int psbfb_remove(struct drm_device *dev, struct drm_framebuffer *fb)
 		return 0;
 
 	info = psbfb->fbdev;
-	psbfb->pvrBO = NULL;
 
 	if (info)
 		framebuffer_release(info);
@@ -635,28 +642,48 @@ int psbfb_remove(struct drm_device *dev, struct drm_framebuffer *fb)
 }
 /*EXPORT_SYMBOL(psbfb_remove); */
 
+/**
+ *	psb_user_framebuffer_create_handle - add hamdle to a framebuffer
+ *	@fb: framebuffer
+ *	@file_priv: our DRM file
+ *	@handle: returned handle
+ *
+ *	Our framebuffer object is a GTT range which also contains a GEM
+ *	object. We need to turn it into a handle for userspace. GEM will do
+ *	the work for us
+ */
 static int psb_user_framebuffer_create_handle(struct drm_framebuffer *fb,
 					      struct drm_file *file_priv,
 					      unsigned int *handle)
 {
-	/* JB: TODO currently we can't go from a bo to a handle with ttm */
-	(void) file_priv;
-	*handle = 0;
-	return 0;
+        struct psb_framebuffer *psbfb = to_psb_fb(fb);
+        struct gtt_range *r = psbfb->gtt;
+        if (r->stolen)
+                return -EOPNOTSUPP;
+        return drm_gem_handle_create(file_priv, &r->gem, handle);
 }
 
+/**
+ *	psb_user_framebuffer_destroy	-	destruct user created fb
+ *	@fb: framebuffer
+ *
+ *	User framebuffers are backed by GEM objects so all we have to do is
+ *	clean up a bit and drop the reference, GEM will handle the fallout
+ */
 static void psb_user_framebuffer_destroy(struct drm_framebuffer *fb)
 {
 	struct drm_device *dev = fb->dev;
 	struct psb_framebuffer *psbfb = to_psb_fb(fb);
+	struct gtt_range *r = psbfb->gtt;
 
-	/*ummap gtt pages*/
-	psb_gtt_unmap_meminfo(dev, psbfb->hKernelMemInfo);
 	if (psbfb->fbdev)
 		psbfb_remove(dev, fb);
 
-	/* JB: TODO not drop, refcount buffer */
+        /* Let DRM do its clean up */
 	drm_framebuffer_cleanup(fb);
+	/*  We are no longer using the resource in GEM */
+	drm_gem_object_unreference_unlocked(&r->gem);
+
 	kfree(fb);
 }
 
@@ -698,8 +725,15 @@ static void psb_setup_outputs(struct drm_device *dev)
 
 	psb_create_backlight_property(dev);
 
-	psb_intel_lvds_init(dev, &dev_priv->mode_dev);
-	/* psb_intel_sdvo_init(dev, SDVOB); */
+	if (IS_MRST(dev)) {
+		if (dev_priv->iLVDS_enable)
+			mrst_lvds_init(dev, &dev_priv->mode_dev);
+		else
+			DRM_ERROR("DSI is not supported\n");
+	} else {
+		psb_intel_lvds_init(dev, &dev_priv->mode_dev);
+		psb_intel_sdvo_init(dev, SDVOB);
+	}
 
 	list_for_each_entry(connector, &dev->mode_config.connector_list,
 			    head) {
@@ -716,7 +750,10 @@ static void psb_setup_outputs(struct drm_device *dev)
 			break;
 		case INTEL_OUTPUT_LVDS:
 			PSB_DEBUG_ENTRY("LVDS.\n");
-			crtc_mask = (1 << 1);
+			if (IS_MRST(dev))
+				crtc_mask = (1 << 0);
+			else
+				crtc_mask = (1 << 1);
 			clone_mask = (1 << INTEL_OUTPUT_LVDS);
 			break;
 		case INTEL_OUTPUT_MIPI:
@@ -743,52 +780,6 @@ static void psb_setup_outputs(struct drm_device *dev)
 	}
 }
 
-static void *psb_bo_from_handle(struct drm_device *dev,
-				struct drm_file *file_priv,
-				unsigned int handle)
-{
-	void *psKernelMemInfo = NULL;
-	void * hKernelMemInfo = (void *)handle;
-	int ret;
-
-	ret = psb_get_meminfo_by_handle(hKernelMemInfo, &psKernelMemInfo);
-	if (ret) {
-		DRM_ERROR("Cannot get meminfo for handle 0x%x\n",
-			  (u32)hKernelMemInfo);
-		return NULL;
-	}
-
-	return (void *)psKernelMemInfo;
-}
-
-static size_t psb_bo_size(struct drm_device *dev, void *bof)
-{
-#if 0
-	void *psKernelMemInfo	= (void *)bof;
-	return (size_t)psKernelMemInfo->ui32AllocSize;
-#else
-	return 0;
-#endif
-}
-
-static size_t psb_bo_offset(struct drm_device *dev, void *bof)
-{
-	struct psb_framebuffer *psbfb
-		= (struct psb_framebuffer *)bof;
-
-	return (size_t)psbfb->offset;
-}
-
-static int psb_bo_pin_for_scanout(struct drm_device *dev, void *bo)
-{
-	 return 0;
-}
-
-static int psb_bo_unpin_for_scanout(struct drm_device *dev, void *bo)
-{
-	return 0;
-}
-
 void psb_modeset_init(struct drm_device *dev)
 {
 	struct drm_psb_private *dev_priv =
@@ -797,12 +788,6 @@ void psb_modeset_init(struct drm_device *dev)
 	int i;
 
 	PSB_DEBUG_ENTRY("\n");
-	/* Init mm functions */
-	mode_dev->bo_from_handle = psb_bo_from_handle;
-	mode_dev->bo_size = psb_bo_size;
-	mode_dev->bo_offset = psb_bo_offset;
-	mode_dev->bo_pin_for_scanout = psb_bo_pin_for_scanout;
-	mode_dev->bo_unpin_for_scanout = psb_bo_unpin_for_scanout;
 
 	drm_mode_config_init(dev);
 
diff --git a/drivers/staging/gma500/psb_fb.h b/drivers/staging/gma500/psb_fb.h
index b4fab9262db5..c8ec0d6febb1 100644
--- a/drivers/staging/gma500/psb_fb.h
+++ b/drivers/staging/gma500/psb_fb.h
@@ -28,32 +28,22 @@
 
 #include "psb_drv.h"
 
-/*IMG Headers*/
-/*#include "servicesint.h"*/
-
 struct psb_framebuffer {
 	struct drm_framebuffer base;
 	struct address_space *addr_space;
-	struct ttm_buffer_object *bo;
-	struct fb_info * fbdev;
-	/* struct ttm_bo_kmap_obj kmap; */
-	void *pvrBO;	/* FIXME: sort this out */
-	void * hKernelMemInfo;
-	uint32_t size;
-	uint32_t offset;
+	struct fb_info *fbdev;
+	struct gtt_range *gtt;
 };
 
 struct psb_fbdev {
 	struct drm_fb_helper psb_fb_helper;
-	struct psb_framebuffer * pfb;
+	struct psb_framebuffer *pfb;
 };
 
 
 #define to_psb_fb(x) container_of(x, struct psb_framebuffer, base)
 
-
 extern int psb_intel_connector_clones(struct drm_device *dev, int type_mask);
 
-
 #endif
 
diff --git a/drivers/staging/gma500/psb_fence.c b/drivers/staging/gma500/psb_fence.c
deleted file mode 100644
index a70aa64f2cad..000000000000
--- a/drivers/staging/gma500/psb_fence.c
+++ /dev/null
@@ -1,122 +0,0 @@
-/*
- * Copyright (c) 2007, Intel Corporation.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- *
- * Authors: Thomas Hellstrom <thomas-at-tungstengraphics-dot-com>
- */
-
-#include <drm/drmP.h>
-#include "psb_drv.h"
-
-
-static void psb_fence_poll(struct ttm_fence_device *fdev,
-			   uint32_t fence_class, uint32_t waiting_types)
-{
-	struct drm_psb_private *dev_priv =
-	    container_of(fdev, struct drm_psb_private, fdev);
-
-
-	if (unlikely(!dev_priv))
-		return;
-
-	if (waiting_types == 0)
-		return;
-
-	/* DRM_ERROR("Polling fence sequence, got 0x%08x\n", sequence); */
-	ttm_fence_handler(fdev, fence_class, 0 /* Sequence */,
-			_PSB_FENCE_TYPE_EXE, 0);
-}
-
-void psb_fence_error(struct drm_device *dev,
-		     uint32_t fence_class,
-		     uint32_t sequence, uint32_t type, int error)
-{
-	struct drm_psb_private *dev_priv = psb_priv(dev);
-	struct ttm_fence_device *fdev = &dev_priv->fdev;
-	unsigned long irq_flags;
-	struct ttm_fence_class_manager *fc =
-	    &fdev->fence_class[fence_class];
-
-	BUG_ON(fence_class >= PSB_NUM_ENGINES);
-	write_lock_irqsave(&fc->lock, irq_flags);
-	ttm_fence_handler(fdev, fence_class, sequence, type, error);
-	write_unlock_irqrestore(&fc->lock, irq_flags);
-}
-
-int psb_fence_emit_sequence(struct ttm_fence_device *fdev,
-			    uint32_t fence_class,
-			    uint32_t flags, uint32_t *sequence,
-			    unsigned long *timeout_jiffies)
-{
-	struct drm_psb_private *dev_priv =
-	    container_of(fdev, struct drm_psb_private, fdev);
-
-	if (!dev_priv)
-		return -EINVAL;
-
-	if (fence_class >= PSB_NUM_ENGINES)
-		return -EINVAL;
-
-	DRM_ERROR("Unexpected fence class\n");
-	return -EINVAL;
-}
-
-static void psb_fence_lockup(struct ttm_fence_object *fence,
-			     uint32_t fence_types)
-{
-	DRM_ERROR("Unsupported fence class\n");
-}
-
-void psb_fence_handler(struct drm_device *dev, uint32_t fence_class)
-{
-	struct drm_psb_private *dev_priv = psb_priv(dev);
-	struct ttm_fence_device *fdev = &dev_priv->fdev;
-	struct ttm_fence_class_manager *fc =
-	    &fdev->fence_class[fence_class];
-	unsigned long irq_flags;
-
-	write_lock_irqsave(&fc->lock, irq_flags);
-	psb_fence_poll(fdev, fence_class, fc->waiting_types);
-	write_unlock_irqrestore(&fc->lock, irq_flags);
-}
-
-
-static struct ttm_fence_driver psb_ttm_fence_driver = {
-	.has_irq = NULL,
-	.emit = psb_fence_emit_sequence,
-	.flush = NULL,
-	.poll = psb_fence_poll,
-	.needed_flush = NULL,
-	.wait = NULL,
-	.signaled = NULL,
-	.lockup = psb_fence_lockup,
-};
-
-int psb_ttm_fence_device_init(struct ttm_fence_device *fdev)
-{
-	struct drm_psb_private *dev_priv =
-		container_of(fdev, struct drm_psb_private, fdev);
-	struct ttm_fence_class_init fci = {.wrap_diff = (1 << 30),
-		.flush_diff = (1 << 29),
-		.sequence_mask = 0xFFFFFFFF
-	};
-
-	return ttm_fence_device_init(PSB_NUM_ENGINES,
-				     dev_priv->mem_global_ref.object,
-				     fdev, &fci, 1,
-				     &psb_ttm_fence_driver);
-}
diff --git a/drivers/staging/gma500/psb_gem.c b/drivers/staging/gma500/psb_gem.c
new file mode 100644
index 000000000000..76ff7bacd35b
--- /dev/null
+++ b/drivers/staging/gma500/psb_gem.c
@@ -0,0 +1,320 @@
+/*
+ *  psb GEM interface
+ *
+ * Copyright (c) 2011, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Authors: Alan Cox
+ *
+ * TODO:
+ *	-	we don't actually put GEM objects into the GART yet
+ *	-	we need to work out if the MMU is relevant as well (eg for
+ *		accelerated operations on a GEM object)
+ *	-	cache coherency
+ *
+ * ie this is just an initial framework to get us going.
+ */
+
+#include <drm/drmP.h>
+#include <drm/drm.h>
+#include "psb_drm.h"
+#include "psb_drv.h"
+
+int psb_gem_init_object(struct drm_gem_object *obj)
+{
+	return -EINVAL;
+}
+
+void psb_gem_free_object(struct drm_gem_object *obj)
+{
+	struct gtt_range *gtt = container_of(obj, struct gtt_range, gem);
+	psb_gtt_free_range(obj->dev, gtt);
+	if (obj->map_list.map) {
+		/* Do things GEM should do for us */
+		struct drm_gem_mm *mm = obj->dev->mm_private;
+		struct drm_map_list *list = &obj->map_list;
+		drm_ht_remove_item(&mm->offset_hash, &list->hash);
+		drm_mm_put_block(list->file_offset_node);
+		kfree(list->map);
+		list->map = NULL;
+	}
+	drm_gem_object_release(obj);
+}
+
+int psb_gem_get_aperture(struct drm_device *dev, void *data,
+				struct drm_file *file)
+{
+	return -EINVAL;
+}
+
+/**
+ *	psb_gem_create_mmap_offset	-	invent an mmap offset
+ *	@obj: our object
+ *
+ *	This is basically doing by hand a pile of ugly crap which should
+ *	be done automatically by the GEM library code but isn't
+ */
+static int psb_gem_create_mmap_offset(struct drm_gem_object *obj)
+{
+	struct drm_device *dev = obj->dev;
+	struct drm_gem_mm *mm = dev->mm_private;
+	struct drm_map_list *list;
+	struct drm_local_map *map;
+	int ret;
+
+	list = &obj->map_list;
+	list->map = kzalloc(sizeof(struct drm_map_list), GFP_KERNEL);
+	if (list->map == NULL)
+		return -ENOMEM;
+	map = list->map;
+	map->type = _DRM_GEM;
+	map->size = obj->size;
+	map->handle =obj;
+
+	list->file_offset_node = drm_mm_search_free(&mm->offset_manager,
+					obj->size / PAGE_SIZE, 0, 0);
+	if (!list->file_offset_node) {
+		DRM_ERROR("failed to allocate offset for bo %d\n", obj->name);
+		ret = -ENOSPC;
+		goto free_it;
+	}
+	list->file_offset_node = drm_mm_get_block(list->file_offset_node,
+					obj->size / PAGE_SIZE, 0);
+	if (!list->file_offset_node) {
+		ret = -ENOMEM;
+		goto free_it;
+	}
+	list->hash.key = list->file_offset_node->start;
+	ret = drm_ht_insert_item(&mm->offset_hash, &list->hash);
+	if (ret) {
+		DRM_ERROR("failed to add to map hash\n");
+		goto free_mm;
+	}
+	return 0;
+
+free_mm:
+	drm_mm_put_block(list->file_offset_node);
+free_it:
+	kfree(list->map);
+	list->map = NULL;
+	return ret;
+}
+
+/**
+ *	psb_gem_dumb_map_gtt	-	buffer mapping for dumb interface
+ *	@file: our drm client file
+ *	@dev: drm device
+ *	@handle: GEM handle to the object (from dumb_create)
+ *
+ *	Do the necessary setup to allow the mapping of the frame buffer
+ *	into user memory. We don't have to do much here at the moment.
+ */
+int psb_gem_dumb_map_gtt(struct drm_file *file, struct drm_device *dev,
+			 uint32_t handle, uint64_t *offset)
+{
+	int ret = 0;
+	struct drm_gem_object *obj;
+
+	if (!(dev->driver->driver_features & DRIVER_GEM))
+		return -ENODEV;
+		
+	mutex_lock(&dev->struct_mutex);
+
+	/* GEM does all our handle to object mapping */
+	obj = drm_gem_object_lookup(dev, file, handle);
+	if (obj == NULL) {
+		ret = -ENOENT;
+		goto unlock;
+	}
+	/* What validation is needed here ? */
+	
+	/* Make it mmapable */
+	if (!obj->map_list.map) {
+		ret = psb_gem_create_mmap_offset(obj);
+		if (ret)
+			goto out;
+	}
+	/* GEM should really work out the hash offsets for us */
+	*offset = (u64)obj->map_list.hash.key << PAGE_SHIFT;
+out:
+	drm_gem_object_unreference(obj);
+unlock:
+	mutex_unlock(&dev->struct_mutex);
+	return ret;
+}
+
+/**
+ *	psb_gem_create		-	create a mappable object
+ *	@file: the DRM file of the client
+ *	@dev: our device
+ *	@size: the size requested
+ *	@handlep: returned handle (opaque number)
+ *
+ *	Create a GEM object, fill in the boilerplate and attach a handle to
+ *	it so that userspace can speak about it. This does the core work
+ *	for the various methods that do/will create GEM objects for things
+ */
+static int psb_gem_create(struct drm_file *file,
+	struct drm_device *dev, uint64_t size, uint32_t *handlep)
+{
+	struct gtt_range *r;
+	int ret;
+	u32 handle;
+
+	size = roundup(size, PAGE_SIZE);
+
+	/* Allocate our object - for now a direct gtt range which is not 
+	   stolen memory backed */
+	r = psb_gtt_alloc_range(dev, size, "gem", 0);
+	if (r == NULL)
+		return -ENOSPC;
+	/* Initialize the extra goodies GEM needs to do all the hard work */
+	if (drm_gem_object_init(dev, &r->gem, size) != 0) {
+		psb_gtt_free_range(dev, r);
+		/* GEM doesn't give an error code and we don't have an
+		   EGEMSUCKS so make something up for now - FIXME */
+		return -ENOMEM;
+	}
+	/* Give the object a handle so we can carry it more easily */
+	ret = drm_gem_handle_create(file, &r->gem, &handle);
+	if (ret) {
+		drm_gem_object_release(&r->gem);
+		psb_gtt_free_range(dev, r);
+		return ret;
+	}
+	/* We have the initial and handle reference but need only one now */
+	drm_gem_object_unreference(&r->gem);
+	*handlep = handle;
+	return 0;
+}
+
+/**
+ *	psb_gem_dumb_create	-	create a dumb buffer
+ *	@drm_file: our client file
+ *	@dev: our device
+ *	@args: the requested arguments copied from userspace
+ *
+ *	Allocate a buffer suitable for use for a frame buffer of the
+ *	form described by user space. Give userspace a handle by which
+ *	to reference it.
+ */
+int psb_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
+			struct drm_mode_create_dumb *args)
+{
+	args->pitch = ALIGN(args->width * ((args->bpp + 7) / 8), 64);
+	args->size = args->pitch * args->height;
+	return psb_gem_create(file, dev, args->size, &args->handle);
+}
+
+/**
+ *	psb_gem_dumb_destroy	-	destroy a dumb buffer
+ *	@file: client file
+ *	@dev: our DRM device
+ *	@handle: the object handle
+ *
+ *	Destroy a handle that was created via psb_gem_dumb_create, at least
+ *	we hope it was created that way. i915 seems to assume the caller
+ *	does the checking but that might be worth review ! FIXME
+ */
+int psb_gem_dumb_destroy(struct drm_file *file, struct drm_device *dev,
+			uint32_t handle)
+{
+	/* No special work needed, drop the reference and see what falls out */
+	return drm_gem_handle_delete(file, handle);
+}
+
+/**
+ *	psb_gem_fault		-	pagefault handler for GEM objects
+ *	@vma: the VMA of the GEM object
+ *	@vmf: fault detail
+ *
+ *	Invoked when a fault occurs on an mmap of a GEM managed area. GEM
+ *	does most of the work for us including the actual map/unmap calls
+ *	but we need to do the actual page work.
+ *
+ *	This code eventually needs to handle faulting objects in and out
+ *	of the GART and repacking it when we run out of space. We can put
+ *	that off for now and for our simple uses
+ *
+ *	The VMA was set up by GEM. In doing so it also ensured that the
+ *	vma->vm_private_data points to the GEM object that is backing this
+ *	mapping.
+ *
+ *	To avoid aliasing and cache funnies we want to map the object
+ *	through the GART. For the moment this is slightly hackish. It would
+ *	be nicer if GEM provided mmap opened/closed hooks for us giving
+ *	the object so that we could track things nicely. That needs changes
+ *	to the core GEM code so must be tackled post staging
+ *
+ *	FIXME
+ */
+int psb_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+	struct drm_gem_object *obj;
+	struct gtt_range *r;
+	int ret;
+	unsigned long pfn;
+	pgoff_t page_offset;
+	struct drm_device *dev;
+
+	obj = vma->vm_private_data;	/* GEM object */
+	dev = obj->dev;
+
+	r = container_of(obj, struct gtt_range, gem);	/* Get the gtt range */
+
+	/* Make sure we don't parallel update on a fault, nor move or remove
+	   something from beneath our feet */
+	mutex_lock(&dev->struct_mutex);
+
+	/* For now the mmap pins the object and it stays pinned. As things
+	   stand that will do us no harm */
+	if (r->mmapping == 0) {
+		ret = psb_gtt_pin(r);
+		if (ret < 0) {
+		        DRM_ERROR("gma500: pin failed: %d\n", ret);
+		        goto fail;
+                }
+		r->mmapping = 1;
+	}
+
+	/* FIXME: Locking. We may also need to repack the GART sometimes */
+
+	/* Page relative to the VMA start */
+	page_offset = ((unsigned long) vmf->virtual_address - vma->vm_start)
+				>> PAGE_SHIFT;
+
+	/* Bus address of the page is gart + object offset + page offset */
+	/* Assumes gtt allocations are page aligned */
+	pfn = (r->resource.start >> PAGE_SHIFT) + page_offset;
+
+	pr_debug("Object GTT base at %p\n", (void *)(r->resource.start));
+	pr_debug("Inserting %p pfn %lx, pa %lx\n", vmf->virtual_address,
+	        pfn, pfn << PAGE_SHIFT);
+
+	ret = vm_insert_pfn(vma, (unsigned long)vmf->virtual_address, pfn);
+
+fail:
+        mutex_unlock(&dev->struct_mutex);
+	switch (ret) {
+	case 0:
+	case -ERESTARTSYS:
+	case -EINTR:
+		return VM_FAULT_NOPAGE;
+	case -ENOMEM:
+		return VM_FAULT_OOM;
+	default:
+		return VM_FAULT_SIGBUS;
+	}
+}
diff --git a/drivers/staging/gma500/psb_gtt.c b/drivers/staging/gma500/psb_gtt.c
index 53c1e1ed3bd2..74c5a6569d08 100644
--- a/drivers/staging/gma500/psb_gtt.c
+++ b/drivers/staging/gma500/psb_gtt.c
@@ -16,12 +16,24 @@
  * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Authors: Thomas Hellstrom <thomas-at-tungstengraphics.com>
+ *	    Alan Cox <alan@linux.intel.com>
  */
 
 #include <drm/drmP.h>
 #include "psb_drv.h"
-#include "psb_pvr_glue.h"
 
+
+/*
+ *	GTT resource allocator - manage page mappings in GTT space
+ */
+
+/**
+ *	psb_gtt_mask_pte	-	generate GART pte entry
+ *	@pfn: page number to encode
+ *	@type: type of memory in the GART
+ *
+ *	Set the GART entry for the appropriate memory type.
+ */
 static inline uint32_t psb_gtt_mask_pte(uint32_t pfn, int type)
 {
 	uint32_t mask = PSB_PTE_VALID;
@@ -36,6 +48,327 @@ static inline uint32_t psb_gtt_mask_pte(uint32_t pfn, int type)
 	return (pfn << PAGE_SHIFT) | mask;
 }
 
+/**
+ *	psb_gtt_entry		-	find the GART entries for a gtt_range
+ *	@dev: our DRM device
+ *	@r: our GTT range
+ * 
+ *	Given a gtt_range object return the GART offset of the page table
+ *	entries for this gtt_range
+ */
+u32 *psb_gtt_entry(struct drm_device *dev, struct gtt_range *r)
+{
+        struct drm_psb_private *dev_priv = dev->dev_private;
+	unsigned long offset;
+
+	offset = r->resource.start - dev_priv->gtt_mem->start;
+
+	return dev_priv->gtt_map + (offset >> PAGE_SHIFT);
+}
+
+/**
+ *	psb_gtt_insert	-	put an object into the GART
+ *	@dev: our DRM device
+ *	@r: our GTT range
+ *
+ *	Take our preallocated GTT range and insert the GEM object into
+ *	the GART.
+ *
+ *	FIXME: gtt lock ?
+ */
+static int psb_gtt_insert(struct drm_device *dev, struct gtt_range *r)
+{
+        struct drm_psb_private *dev_priv = dev->dev_private;
+	u32 *gtt_slot, pte;
+	int numpages = (r->resource.end + 1 - r->resource.start) >> PAGE_SHIFT;
+	struct page **pages;
+	int i;
+
+	if (r->pages == NULL) {
+		WARN_ON(1);
+		return -EINVAL;
+	}
+
+	WARN_ON(r->stolen);	/* refcount these maybe ? */
+
+	gtt_slot = psb_gtt_entry(dev, r);
+	pages = r->pages;
+
+	/* Make sure we have no alias present */
+	wbinvd();
+
+	/* Write our page entries into the GART itself */
+	for (i = 0; i < numpages; i++) {
+		pte = psb_gtt_mask_pte(page_to_pfn(*pages++), 0/*type*/);
+		iowrite32(pte, gtt_slot++);
+	}
+	/* Make sure all the entries are set before we return */
+	ioread32(gtt_slot - 1);
+	
+	return 0;
+}
+
+/**
+ *	psb_gtt_remove	-	remove an object from the GART
+ *	@dev: our DRM device
+ *	@r: our GTT range
+ *
+ *	Remove a preallocated GTT range from the GART. Overwrite all the
+ *	page table entries with the dummy page
+ */
+
+static void psb_gtt_remove(struct drm_device *dev, struct gtt_range *r)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	u32 *gtt_slot, pte;
+	int numpages = (r->resource.end + 1 - r->resource.start) >> PAGE_SHIFT;
+	int i;
+
+	WARN_ON(r->stolen);
+
+	gtt_slot = psb_gtt_entry(dev, r);
+	pte = psb_gtt_mask_pte(page_to_pfn(dev_priv->scratch_page), 0);;
+
+	for (i = 0; i < numpages; i++)
+		iowrite32(pte, gtt_slot++);
+	ioread32(gtt_slot - 1);
+}
+
+/**
+ *	psb_gtt_attach_pages	-	attach and pin GEM pages
+ *	@gt: the gtt range
+ *
+ *	Pin and build an in kernel list of the pages that back our GEM object.
+ *	While we hold this the pages cannot be swapped out
+ *
+ *	FIXME: Do we need to cache flush when we update the GTT
+ */
+static int psb_gtt_attach_pages(struct gtt_range *gt)
+{
+	struct inode *inode;
+	struct address_space *mapping;
+	int i;
+	struct page *p;
+	int pages = (gt->resource.end + 1 - gt->resource.start) >> PAGE_SHIFT;
+
+	WARN_ON(gt->pages);
+
+	/* This is the shared memory object that backs the GEM resource */
+	inode = gt->gem.filp->f_path.dentry->d_inode;
+	mapping = inode->i_mapping;
+
+	gt->pages = kmalloc(pages * sizeof(struct page *), GFP_KERNEL);
+	if (gt->pages == NULL)
+		return -ENOMEM;
+	for (i = 0; i < pages; i++) {
+		/* FIXME: review flags later */
+		p = read_cache_page_gfp(mapping, i,
+					__GFP_COLD | GFP_KERNEL);
+		if (IS_ERR(p))
+			goto err;
+		gt->pages[i] = p;
+	}
+	return 0;
+
+err:
+	while (i--)
+		page_cache_release(gt->pages[i]);
+	kfree(gt->pages);
+	gt->pages = NULL;
+	return PTR_ERR(p);
+}
+
+/**
+ *	psb_gtt_detach_pages	-	attach and pin GEM pages
+ *	@gt: the gtt range
+ *
+ *	Undo the effect of psb_gtt_attach_pages. At this point the pages
+ *	must have been removed from the GART as they could now be paged out
+ *	and move bus address.
+ *
+ *	FIXME: Do we need to cache flush when we update the GTT
+ */
+static void psb_gtt_detach_pages(struct gtt_range *gt)
+{
+	int i;
+	int pages = (gt->resource.end + 1 - gt->resource.start) >> PAGE_SHIFT;
+
+	for (i = 0; i < pages; i++) {
+		/* FIXME: do we need to force dirty */
+		set_page_dirty(gt->pages[i]);
+		/* Undo the reference we took when populating the table */
+		page_cache_release(gt->pages[i]);
+	}
+	kfree(gt->pages);
+	gt->pages = NULL;
+}
+
+/**
+ *	psb_gtt_pin		-	pin pages into the GTT
+ *	@gt: range to pin
+ *
+ *	Pin a set of pages into the GTT. The pins are refcounted so that
+ *	multiple pins need multiple unpins to undo.
+ *
+ *	Non GEM backed objects treat this as a no-op as they are always GTT
+ *	backed objects.
+ */
+int psb_gtt_pin(struct gtt_range *gt)
+{
+	int ret;
+	struct drm_device *dev = gt->gem.dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+
+	mutex_lock(&dev_priv->gtt_mutex);
+
+	if (gt->in_gart == 0 && gt->stolen == 0) {
+		ret = psb_gtt_attach_pages(gt);
+		if (ret < 0)
+			goto out;
+		ret = psb_gtt_insert(dev, gt);
+		if (ret < 0) {
+			psb_gtt_detach_pages(gt);
+			goto out;
+		}
+	}
+	gt->in_gart++;
+out:
+	mutex_unlock(&dev_priv->gtt_mutex);
+	return ret;
+}
+
+/**
+ *	psb_gtt_unpin		-	Drop a GTT pin requirement
+ *	@gt: range to pin
+ *
+ *	Undoes the effect of psb_gtt_pin. On the last drop the GEM object
+ *	will be removed from the GTT which will also drop the page references
+ *	and allow the VM to clean up or page stuff.
+ *
+ *	Non GEM backed objects treat this as a no-op as they are always GTT
+ *	backed objects.
+ */
+void psb_gtt_unpin(struct gtt_range *gt)
+{
+	struct drm_device *dev = gt->gem.dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+
+	mutex_lock(&dev_priv->gtt_mutex);
+
+	WARN_ON(!gt->in_gart);
+
+	gt->in_gart--;
+	if (gt->in_gart == 0 && gt->stolen == 0) {
+		psb_gtt_remove(dev, gt);
+		psb_gtt_detach_pages(gt);
+	}
+	mutex_unlock(&dev_priv->gtt_mutex);
+}
+	
+/*
+ *	GTT resource allocator - allocate and manage GTT address space
+ */
+
+/**
+ *	psb_gtt_alloc_range	-	allocate GTT address space
+ *	@dev: Our DRM device
+ *	@len: length (bytes) of address space required
+ *	@name: resource name
+ *	@backed: resource should be backed by stolen pages
+ *
+ *	Ask the kernel core to find us a suitable range of addresses
+ *	to use for a GTT mapping.
+ *
+ *	Returns a gtt_range structure describing the object, or NULL on
+ *	error. On successful return the resource is both allocated and marked
+ *	as in use.
+ */
+struct gtt_range *psb_gtt_alloc_range(struct drm_device *dev, int len,
+						const char *name, int backed)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct gtt_range *gt;
+	struct resource *r = dev_priv->gtt_mem;
+	int ret;
+	unsigned long start, end;
+	
+	if (backed) {
+	        /* The start of the GTT is the stolen pages */
+	        start = r->start;
+	        end = r->start + dev_priv->pg->stolen_size - 1;
+        } else {
+                /* The rest we will use for GEM backed objects */
+                start = r->start + dev_priv->pg->stolen_size;
+                end = r->end;
+        }
+
+	gt = kzalloc(sizeof(struct gtt_range), GFP_KERNEL);
+	if (gt == NULL)
+		return NULL;
+        gt->resource.name = name;
+        gt->stolen = backed;
+        gt->in_gart = backed;
+        /* Ensure this is set for non GEM objects */
+        gt->gem.dev = dev;
+	kref_init(&gt->kref);
+
+	ret = allocate_resource(dev_priv->gtt_mem, &gt->resource,
+				len, start, end, PAGE_SIZE, NULL, NULL);
+	if (ret == 0) {
+	        gt->offset = gt->resource.start - r->start;
+		return gt;
+        }
+	kfree(gt);
+	return NULL;
+}
+
+/**
+ *	psb_gtt_destroy		-	final free up of a gtt
+ *	@kref: the kref of the gtt
+ *
+ *	Called from the kernel kref put when the final reference to our
+ *	GTT object is dropped. At that point we can free up the resources.
+ *
+ *	For now we handle mmap clean up here to work around limits in GEM
+ */
+static void psb_gtt_destroy(struct kref *kref)
+{
+	struct gtt_range *gt = container_of(kref, struct gtt_range, kref);
+
+	/* Undo the mmap pin if we are destroying the object */
+	if (gt->mmapping) {
+		psb_gtt_unpin(gt);
+		gt->mmapping = 0;
+	}
+	WARN_ON(gt->in_gart && !gt->stolen);
+	release_resource(&gt->resource);
+	kfree(gt);
+}
+
+/**
+ *	psb_gtt_kref_put	-	drop reference to a GTT object
+ *	@gt: the GT being dropped
+ *
+ *	Drop a reference to a psb gtt
+ */
+void psb_gtt_kref_put(struct gtt_range *gt)
+{
+	kref_put(&gt->kref, psb_gtt_destroy);
+}
+
+/**
+ *	psb_gtt_free_range	-	release GTT address space
+ *	@dev: our DRM device
+ *	@gt: a mapping created with psb_gtt_alloc_range
+ *
+ *	Release a resource that was allocated with psb_gtt_alloc_range
+ */
+void psb_gtt_free_range(struct drm_device *dev, struct gtt_range *gt)
+{
+	psb_gtt_kref_put(gt);
+}
+
+
 struct psb_gtt *psb_gtt_alloc(struct drm_device *dev)
 {
 	struct psb_gtt *tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
@@ -49,98 +382,89 @@ struct psb_gtt *psb_gtt_alloc(struct drm_device *dev)
 	return tmp;
 }
 
-void psb_gtt_takedown(struct psb_gtt *pg, int free)
+void psb_gtt_takedown(struct drm_device *dev)
 {
-	struct drm_psb_private *dev_priv = pg->dev->dev_private;
-
-	if (!pg)
-		return;
+	struct drm_psb_private *dev_priv = dev->dev_private;
 
-	if (pg->gtt_map) {
-		iounmap(pg->gtt_map);
-		pg->gtt_map = NULL;
+	/* FIXME: iounmap dev_priv->vram_addr etc */
+	if (dev_priv->gtt_map) {
+		iounmap(dev_priv->gtt_map);
+		dev_priv->gtt_map = NULL;
 	}
-	if (pg->initialized) {
-		pci_write_config_word(pg->dev->pdev, PSB_GMCH_CTRL,
-				      pg->gmch_ctrl);
-		PSB_WVDC32(pg->pge_ctl, PSB_PGETBL_CTL);
+	if (dev_priv->gtt_initialized) {
+		pci_write_config_word(dev->pdev, PSB_GMCH_CTRL,
+				      dev_priv->gmch_ctrl);
+		PSB_WVDC32(dev_priv->pge_ctl, PSB_PGETBL_CTL);
 		(void) PSB_RVDC32(PSB_PGETBL_CTL);
 	}
-	if (free)
-		kfree(pg);
+	kfree(dev_priv->pg);
+	dev_priv->pg = NULL;
 }
 
-int psb_gtt_init(struct psb_gtt *pg, int resume)
+int psb_gtt_init(struct drm_device *dev, int resume)
 {
-	struct drm_device *dev = pg->dev;
 	struct drm_psb_private *dev_priv = dev->dev_private;
 	unsigned gtt_pages;
-	unsigned long stolen_size, vram_stolen_size, ci_stolen_size;
-	unsigned long rar_stolen_size;
+	unsigned long stolen_size, vram_stolen_size;
 	unsigned i, num_pages;
 	unsigned pfn_base;
-	uint32_t ci_pages, vram_pages;
+	uint32_t vram_pages;
 	uint32_t tt_pages;
 	uint32_t *ttm_gtt_map;
 	uint32_t dvmt_mode = 0;
+	struct psb_gtt *pg;
 
 	int ret = 0;
 	uint32_t pte;
 
-	pci_read_config_word(dev->pdev, PSB_GMCH_CTRL, &pg->gmch_ctrl);
+	mutex_init(&dev_priv->gtt_mutex);
+
+	dev_priv->pg = pg = psb_gtt_alloc(dev);
+	if (pg == NULL)
+	        return -ENOMEM;
+
+	pci_read_config_word(dev->pdev, PSB_GMCH_CTRL, &dev_priv->gmch_ctrl);
 	pci_write_config_word(dev->pdev, PSB_GMCH_CTRL,
-			      pg->gmch_ctrl | _PSB_GMCH_ENABLED);
+			      dev_priv->gmch_ctrl | _PSB_GMCH_ENABLED);
 
-	pg->pge_ctl = PSB_RVDC32(PSB_PGETBL_CTL);
-	PSB_WVDC32(pg->pge_ctl | _PSB_PGETBL_ENABLED, PSB_PGETBL_CTL);
+	dev_priv->pge_ctl = PSB_RVDC32(PSB_PGETBL_CTL);
+	PSB_WVDC32(dev_priv->pge_ctl | _PSB_PGETBL_ENABLED, PSB_PGETBL_CTL);
 	(void) PSB_RVDC32(PSB_PGETBL_CTL);
 
-	pg->initialized = 1;
+	/* The root resource we allocate address space from */
+	dev_priv->gtt_mem = &dev->pdev->resource[PSB_GATT_RESOURCE];
 
-	pg->gtt_phys_start = pg->pge_ctl & PAGE_MASK;
+	dev_priv->gtt_initialized = 1;
+
+	pg->gtt_phys_start = dev_priv->pge_ctl & PAGE_MASK;
 
 	pg->gatt_start = pci_resource_start(dev->pdev, PSB_GATT_RESOURCE);
 	/* fix me: video mmu has hw bug to access 0x0D0000000,
 	 * then make gatt start at 0x0e000,0000 */
-	pg->mmu_gatt_start = PSB_MEM_TT_START;
+	pg->mmu_gatt_start = 0xE0000000;
 	pg->gtt_start = pci_resource_start(dev->pdev, PSB_GTT_RESOURCE);
 	gtt_pages =
 	    pci_resource_len(dev->pdev, PSB_GTT_RESOURCE) >> PAGE_SHIFT;
 	pg->gatt_pages = pci_resource_len(dev->pdev, PSB_GATT_RESOURCE)
 	    >> PAGE_SHIFT;
 
-	pci_read_config_dword(dev->pdev, PSB_BSM, &pg->stolen_base);
-	vram_stolen_size = pg->gtt_phys_start - pg->stolen_base - PAGE_SIZE;
+	pci_read_config_dword(dev->pdev, PSB_BSM, &dev_priv->stolen_base);
+	vram_stolen_size = pg->gtt_phys_start - dev_priv->stolen_base - PAGE_SIZE;
 
-	/* CI is not included in the stolen size since the TOPAZ MMU bug */
-	ci_stolen_size = dev_priv->ci_region_size;
-	/* Don't add CI & RAR share buffer space
-	 * managed by TTM to stolen_size */
 	stolen_size = vram_stolen_size;
 
-	rar_stolen_size = dev_priv->rar_region_size;
-
 	printk(KERN_INFO"GMMADR(region 0) start: 0x%08x (%dM).\n",
 		pg->gatt_start, pg->gatt_pages/256);
 	printk(KERN_INFO"GTTADR(region 3) start: 0x%08x (can map %dM RAM), and actual RAM base 0x%08x.\n",
 		pg->gtt_start, gtt_pages * 4, pg->gtt_phys_start);
-	printk(KERN_INFO "Stole memory information\n");
-	printk(KERN_INFO "      base in RAM: 0x%x\n", pg->stolen_base);
-	printk(KERN_INFO "      size: %luK, calculated by (GTT RAM base) - (Stolen base), seems wrong\n",
+	printk(KERN_INFO "Stolen memory information\n");
+	printk(KERN_INFO "       base in RAM: 0x%x\n", dev_priv->stolen_base);
+	printk(KERN_INFO "       size: %luK, calculated by (GTT RAM base) - (Stolen base), seems wrong\n",
 		vram_stolen_size/1024);
-	dvmt_mode = (pg->gmch_ctrl >> 4) & 0x7;
+	dvmt_mode = (dev_priv->gmch_ctrl >> 4) & 0x7;
 	printk(KERN_INFO "      the correct size should be: %dM(dvmt mode=%d)\n",
 		(dvmt_mode == 1) ? 1 : (2 << (dvmt_mode - 1)), dvmt_mode);
 
-	if (ci_stolen_size > 0)
-		printk(KERN_INFO"CI Stole memory: RAM base = 0x%08x, size = %lu M\n",
-				dev_priv->ci_region_start,
-				ci_stolen_size / 1024 / 1024);
-	if (rar_stolen_size > 0)
-		printk(KERN_INFO "RAR Stole memory: RAM base = 0x%08x, size = %lu M\n",
-			dev_priv->rar_region_start,
-			rar_stolen_size / 1024 / 1024);
-
 	if (resume && (gtt_pages != pg->gtt_pages) &&
 	    (stolen_size != pg->stolen_size)) {
 		DRM_ERROR("GTT resume error.\n");
@@ -150,42 +474,40 @@ int psb_gtt_init(struct psb_gtt *pg, int resume)
 
 	pg->gtt_pages = gtt_pages;
 	pg->stolen_size = stolen_size;
-	pg->vram_stolen_size = vram_stolen_size;
-	pg->ci_stolen_size = ci_stolen_size;
-	pg->rar_stolen_size = rar_stolen_size;
-	pg->gtt_map =
+	dev_priv->vram_stolen_size = vram_stolen_size;
+	dev_priv->gtt_map =
 	    ioremap_nocache(pg->gtt_phys_start, gtt_pages << PAGE_SHIFT);
-	if (!pg->gtt_map) {
+	if (!dev_priv->gtt_map) {
 		DRM_ERROR("Failure to map gtt.\n");
 		ret = -ENOMEM;
 		goto out_err;
 	}
 
-	pg->vram_addr = ioremap_wc(pg->stolen_base, stolen_size);
-	if (!pg->vram_addr) {
+	dev_priv->vram_addr = ioremap_wc(dev_priv->stolen_base, stolen_size);
+	if (!dev_priv->vram_addr) {
 		DRM_ERROR("Failure to map stolen base.\n");
 		ret = -ENOMEM;
 		goto out_err;
 	}
 
-	DRM_DEBUG("%s: vram kernel virtual address %p\n", pg->vram_addr);
+	DRM_DEBUG("%s: vram kernel virtual address %p\n", dev_priv->vram_addr);
 
 	tt_pages = (pg->gatt_pages < PSB_TT_PRIV0_PLIMIT) ?
 		(pg->gatt_pages) : PSB_TT_PRIV0_PLIMIT;
 
-	ttm_gtt_map = pg->gtt_map + tt_pages / 2;
+	ttm_gtt_map = dev_priv->gtt_map + tt_pages / 2;
 
 	/*
 	 * insert vram stolen pages.
 	 */
 
-	pfn_base = pg->stolen_base >> PAGE_SHIFT;
+	pfn_base = dev_priv->stolen_base >> PAGE_SHIFT;
 	vram_pages = num_pages = vram_stolen_size >> PAGE_SHIFT;
 	printk(KERN_INFO"Set up %d stolen pages starting at 0x%08x, GTT offset %dK\n",
 		num_pages, pfn_base, 0);
 	for (i = 0; i < num_pages; ++i) {
 		pte = psb_gtt_mask_pte(pfn_base + i, 0);
-		iowrite32(pte, pg->gtt_map + i);
+		iowrite32(pte, dev_priv->gtt_map + i);
 	}
 
 	/*
@@ -194,36 +516,9 @@ int psb_gtt_init(struct psb_gtt *pg, int resume)
 	pfn_base = page_to_pfn(dev_priv->scratch_page);
 	pte = psb_gtt_mask_pte(pfn_base, 0);
 	for (; i < tt_pages / 2 - 1; ++i)
-		iowrite32(pte, pg->gtt_map + i);
-
-	/*
-	 * insert CI stolen pages
-	 */
-
-	pfn_base = dev_priv->ci_region_start >> PAGE_SHIFT;
-	ci_pages = num_pages = ci_stolen_size >> PAGE_SHIFT;
-	printk(KERN_INFO"Set up %d CI stolen pages starting at 0x%08x, GTT offset %dK\n",
-	       num_pages, pfn_base, (ttm_gtt_map - pg->gtt_map) * 4);
-	for (i = 0; i < num_pages; ++i) {
-		pte = psb_gtt_mask_pte(pfn_base + i, 0);
-		iowrite32(pte, ttm_gtt_map + i);
-	}
+		iowrite32(pte, dev_priv->gtt_map + i);
 
 	/*
-	 * insert RAR stolen pages
-	 */
-	if (rar_stolen_size != 0) {
-		pfn_base = dev_priv->rar_region_start >> PAGE_SHIFT;
-		num_pages = rar_stolen_size >> PAGE_SHIFT;
-		printk(KERN_INFO"Set up %d RAR stolen pages starting at 0x%08x, GTT offset %dK\n",
-			num_pages, pfn_base,
-			(ttm_gtt_map - pg->gtt_map + i) * 4);
-		for (; i < num_pages + ci_pages; ++i) {
-			pte = psb_gtt_mask_pte(pfn_base + i - ci_pages, 0);
-			iowrite32(pte, ttm_gtt_map + i);
-		}
-	}
-	/*
 	 * Init rest of gtt managed by TTM.
 	 */
 
@@ -234,801 +529,11 @@ int psb_gtt_init(struct psb_gtt *pg, int resume)
 
 	for (; i < pg->gatt_pages - tt_pages / 2; ++i)
 		iowrite32(pte, ttm_gtt_map + i);
-	(void) ioread32(pg->gtt_map + i - 1);
+	(void) ioread32(dev_priv->gtt_map + i - 1);
 
 	return 0;
 
 out_err:
-	psb_gtt_takedown(pg, 0);
-	return ret;
-}
-
-int psb_gtt_insert_pages(struct psb_gtt *pg, struct page **pages,
-			 unsigned offset_pages, unsigned num_pages,
-			 unsigned desired_tile_stride,
-			 unsigned hw_tile_stride, int type)
-{
-	unsigned rows = 1;
-	unsigned add;
-	unsigned row_add;
-	unsigned i;
-	unsigned j;
-	uint32_t *cur_page = NULL;
-	uint32_t pte;
-
-	if (hw_tile_stride)
-		rows = num_pages / desired_tile_stride;
-	else
-		desired_tile_stride = num_pages;
-
-	add = desired_tile_stride;
-	row_add = hw_tile_stride;
-
-	down_read(&pg->sem);
-	for (i = 0; i < rows; ++i) {
-		cur_page = pg->gtt_map + offset_pages;
-		for (j = 0; j < desired_tile_stride; ++j) {
-			pte =
-			    psb_gtt_mask_pte(page_to_pfn(*pages++), type);
-			iowrite32(pte, cur_page++);
-		}
-		offset_pages += add;
-	}
-	(void) ioread32(cur_page - 1);
-	up_read(&pg->sem);
-
-	return 0;
-}
-
-int psb_gtt_insert_phys_addresses(struct psb_gtt *pg, dma_addr_t *pPhysFrames,
-			unsigned offset_pages, unsigned num_pages, int type)
-{
-	unsigned j;
-	uint32_t *cur_page = NULL;
-	uint32_t pte;
-	u32 ba;
-
-	down_read(&pg->sem);
-	cur_page = pg->gtt_map + offset_pages;
-	for (j = 0; j < num_pages; ++j) {
-		ba = *pPhysFrames++;
-		pte =  psb_gtt_mask_pte(ba >> PAGE_SHIFT, type);
-		iowrite32(pte, cur_page++);
-	}
-	(void) ioread32(cur_page - 1);
-	up_read(&pg->sem);
-	return 0;
-}
-
-int psb_gtt_remove_pages(struct psb_gtt *pg, unsigned offset_pages,
-			 unsigned num_pages, unsigned desired_tile_stride,
-			 unsigned hw_tile_stride, int rc_prot)
-{
-	struct drm_psb_private *dev_priv = pg->dev->dev_private;
-	unsigned rows = 1;
-	unsigned add;
-	unsigned row_add;
-	unsigned i;
-	unsigned j;
-	uint32_t *cur_page = NULL;
-	unsigned pfn_base = page_to_pfn(dev_priv->scratch_page);
-	uint32_t pte = psb_gtt_mask_pte(pfn_base, 0);
-
-	if (hw_tile_stride)
-		rows = num_pages / desired_tile_stride;
-	else
-		desired_tile_stride = num_pages;
-
-	add = desired_tile_stride;
-	row_add = hw_tile_stride;
-
-	if (rc_prot)
-		down_read(&pg->sem);
-	for (i = 0; i < rows; ++i) {
-		cur_page = pg->gtt_map + offset_pages;
-		for (j = 0; j < desired_tile_stride; ++j)
-			iowrite32(pte, cur_page++);
-
-		offset_pages += add;
-	}
-	(void) ioread32(cur_page - 1);
-	if (rc_prot)
-		up_read(&pg->sem);
-
-	return 0;
-}
-
-int psb_gtt_mm_init(struct psb_gtt *pg)
-{
-	struct psb_gtt_mm *gtt_mm;
-	struct drm_psb_private *dev_priv = pg->dev->dev_private;
-	struct drm_open_hash *ht;
-	struct drm_mm *mm;
-	int ret;
-	uint32_t tt_start;
-	uint32_t tt_size;
-
-	if (!pg || !pg->initialized) {
-		DRM_DEBUG("Invalid gtt struct\n");
-		return -EINVAL;
-	}
-
-	gtt_mm =  kzalloc(sizeof(struct psb_gtt_mm), GFP_KERNEL);
-	if (!gtt_mm)
-		return -ENOMEM;
-
-	spin_lock_init(&gtt_mm->lock);
-
-	ht = &gtt_mm->hash;
-	ret = drm_ht_create(ht, 20);
-	if (ret) {
-		DRM_DEBUG("Create hash table failed(%d)\n", ret);
-		goto err_free;
-	}
-
-	tt_start = (pg->stolen_size + PAGE_SIZE - 1) >> PAGE_SHIFT;
-	tt_start = (tt_start < pg->gatt_pages) ? tt_start : pg->gatt_pages;
-	tt_size = (pg->gatt_pages < PSB_TT_PRIV0_PLIMIT) ?
-			(pg->gatt_pages) : PSB_TT_PRIV0_PLIMIT;
-
-	mm = &gtt_mm->base;
-
-	/*will use tt_start ~ 128M for IMG TT buffers*/
-	ret = drm_mm_init(mm, tt_start, ((tt_size / 2) - tt_start));
-	if (ret) {
-		DRM_DEBUG("drm_mm_int error(%d)\n", ret);
-		goto err_mm_init;
-	}
-
-	gtt_mm->count = 0;
-
-	dev_priv->gtt_mm = gtt_mm;
-
-	DRM_INFO("PSB GTT mem manager ready, tt_start %ld, tt_size %ld pages\n",
-		(unsigned long)tt_start,
-		(unsigned long)((tt_size / 2) - tt_start));
-	return 0;
-err_mm_init:
-	drm_ht_remove(ht);
-
-err_free:
-	kfree(gtt_mm);
+	psb_gtt_takedown(dev);
 	return ret;
 }
-
-/**
- * Delete all hash entries;
- */
-void psb_gtt_mm_takedown(void)
-{
-	return;
-}
-
-static int psb_gtt_mm_get_ht_by_pid_locked(struct psb_gtt_mm *mm,
-				    u32 tgid,
-				    struct psb_gtt_hash_entry **hentry)
-{
-	struct drm_hash_item *entry;
-	struct psb_gtt_hash_entry *psb_entry;
-	int ret;
-
-	ret = drm_ht_find_item(&mm->hash, tgid, &entry);
-	if (ret) {
-		DRM_DEBUG("Cannot find entry pid=%ld\n", tgid);
-		return ret;
-	}
-
-	psb_entry = container_of(entry, struct psb_gtt_hash_entry, item);
-	if (!psb_entry) {
-		DRM_DEBUG("Invalid entry");
-		return -EINVAL;
-	}
-
-	*hentry = psb_entry;
-	return 0;
-}
-
-
-static int psb_gtt_mm_insert_ht_locked(struct psb_gtt_mm *mm,
-				       u32 tgid,
-				       struct psb_gtt_hash_entry *hentry)
-{
-	struct drm_hash_item *item;
-	int ret;
-
-	if (!hentry) {
-		DRM_DEBUG("Invalid parameters\n");
-		return -EINVAL;
-	}
-
-	item = &hentry->item;
-	item->key = tgid;
-
-	/**
-	 * NOTE: drm_ht_insert_item will perform such a check
-	ret = psb_gtt_mm_get_ht_by_pid(mm, tgid, &tmp);
-	if (!ret) {
-		DRM_DEBUG("Entry already exists for pid %ld\n", tgid);
-		return -EAGAIN;
-	}
-	*/
-
-	/*Insert the given entry*/
-	ret = drm_ht_insert_item(&mm->hash, item);
-	if (ret) {
-		DRM_DEBUG("Insert failure\n");
-		return ret;
-	}
-
-	mm->count++;
-
-	return 0;
-}
-
-static int psb_gtt_mm_alloc_insert_ht(struct psb_gtt_mm *mm,
-				      u32 tgid,
-				      struct psb_gtt_hash_entry **entry)
-{
-	struct psb_gtt_hash_entry *hentry;
-	int ret;
-
-	/*if the hentry for this tgid exists, just get it and return*/
-	spin_lock(&mm->lock);
-	ret = psb_gtt_mm_get_ht_by_pid_locked(mm, tgid, &hentry);
-	if (!ret) {
-		DRM_DEBUG("Entry for tgid %ld exist, hentry %p\n",
-			  tgid, hentry);
-		*entry = hentry;
-		spin_unlock(&mm->lock);
-		return 0;
-	}
-	spin_unlock(&mm->lock);
-
-	DRM_DEBUG("Entry for tgid %ld doesn't exist, will create it\n", tgid);
-
-	hentry = kzalloc(sizeof(struct psb_gtt_hash_entry), GFP_KERNEL);
-	if (!hentry) {
-		DRM_DEBUG("Kmalloc failled\n");
-		return -ENOMEM;
-	}
-
-	ret = drm_ht_create(&hentry->ht, 20);
-	if (ret) {
-		DRM_DEBUG("Create hash table failed\n");
-		return ret;
-	}
-
-	spin_lock(&mm->lock);
-	ret = psb_gtt_mm_insert_ht_locked(mm, tgid, hentry);
-	spin_unlock(&mm->lock);
-
-	if (!ret)
-		*entry = hentry;
-
-	return ret;
-}
-
-static struct psb_gtt_hash_entry *
-psb_gtt_mm_remove_ht_locked(struct psb_gtt_mm *mm, u32 tgid)
-{
-	struct psb_gtt_hash_entry *tmp;
-	int ret;
-
-	ret = psb_gtt_mm_get_ht_by_pid_locked(mm, tgid, &tmp);
-	if (ret) {
-		DRM_DEBUG("Cannot find entry pid %ld\n", tgid);
-		return NULL;
-	}
-
-	/*remove it from ht*/
-	drm_ht_remove_item(&mm->hash, &tmp->item);
-
-	mm->count--;
-
-	return tmp;
-}
-
-static int psb_gtt_mm_remove_free_ht_locked(struct psb_gtt_mm *mm, u32 tgid)
-{
-	struct psb_gtt_hash_entry *entry;
-
-	entry = psb_gtt_mm_remove_ht_locked(mm, tgid);
-
-	if (!entry) {
-		DRM_DEBUG("Invalid entry");
-		return -EINVAL;
-	}
-
-	/*delete ht*/
-	drm_ht_remove(&entry->ht);
-
-	/*free this entry*/
-	kfree(entry);
-	return 0;
-}
-
-static int
-psb_gtt_mm_get_mem_mapping_locked(struct drm_open_hash *ht,
-			   u32 key,
-			   struct psb_gtt_mem_mapping **hentry)
-{
-	struct drm_hash_item *entry;
-	struct psb_gtt_mem_mapping *mapping;
-	int ret;
-
-	ret = drm_ht_find_item(ht, key, &entry);
-	if (ret) {
-		DRM_DEBUG("Cannot find key %ld\n", key);
-		return ret;
-	}
-
-	mapping =  container_of(entry, struct psb_gtt_mem_mapping, item);
-	if (!mapping) {
-		DRM_DEBUG("Invalid entry\n");
-		return -EINVAL;
-	}
-
-	*hentry = mapping;
-	return 0;
-}
-
-static int
-psb_gtt_mm_insert_mem_mapping_locked(struct drm_open_hash *ht,
-			      u32 key,
-			      struct psb_gtt_mem_mapping *hentry)
-{
-	struct drm_hash_item *item;
-	struct psb_gtt_hash_entry *entry;
-	int ret;
-
-	if (!hentry) {
-		DRM_DEBUG("hentry is NULL\n");
-		return -EINVAL;
-	}
-
-	item = &hentry->item;
-	item->key = key;
-
-	ret = drm_ht_insert_item(ht, item);
-	if (ret) {
-		DRM_DEBUG("insert_item failed\n");
-		return ret;
-	}
-
-	entry = container_of(ht, struct psb_gtt_hash_entry, ht);
-	if (entry)
-		entry->count++;
-
-	return 0;
-}
-
-static int
-psb_gtt_mm_alloc_insert_mem_mapping(struct psb_gtt_mm *mm,
-				    struct drm_open_hash *ht,
-				    u32 key,
-				    struct drm_mm_node *node,
-				    struct psb_gtt_mem_mapping **entry)
-{
-	struct psb_gtt_mem_mapping *mapping;
-	int ret;
-
-	if (!node || !ht) {
-		DRM_DEBUG("parameter error\n");
-		return -EINVAL;
-	}
-
-	/*try to get this mem_map */
-	spin_lock(&mm->lock);
-	ret = psb_gtt_mm_get_mem_mapping_locked(ht, key, &mapping);
-	if (!ret) {
-		DRM_DEBUG("mapping entry for key %ld exists, entry %p\n",
-			  key, mapping);
-		*entry = mapping;
-		spin_unlock(&mm->lock);
-		return 0;
-	}
-	spin_unlock(&mm->lock);
-
-	DRM_DEBUG("Mapping entry for key %ld doesn't exist, will create it\n",
-		  key);
-
-	mapping = kzalloc(sizeof(struct psb_gtt_mem_mapping), GFP_KERNEL);
-	if (!mapping) {
-		DRM_DEBUG("kmalloc failed\n");
-		return -ENOMEM;
-	}
-
-	mapping->node = node;
-
-	spin_lock(&mm->lock);
-	ret = psb_gtt_mm_insert_mem_mapping_locked(ht, key, mapping);
-	spin_unlock(&mm->lock);
-
-	if (!ret)
-		*entry = mapping;
-
-	return ret;
-}
-
-static struct psb_gtt_mem_mapping *
-psb_gtt_mm_remove_mem_mapping_locked(struct drm_open_hash *ht, u32 key)
-{
-	struct psb_gtt_mem_mapping *tmp;
-	struct psb_gtt_hash_entry *entry;
-	int ret;
-
-	ret = psb_gtt_mm_get_mem_mapping_locked(ht, key, &tmp);
-	if (ret) {
-		DRM_DEBUG("Cannot find key %ld\n", key);
-		return NULL;
-	}
-
-	drm_ht_remove_item(ht, &tmp->item);
-
-	entry = container_of(ht, struct psb_gtt_hash_entry, ht);
-	if (entry)
-		entry->count--;
-
-	return tmp;
-}
-
-static int psb_gtt_mm_remove_free_mem_mapping_locked(struct drm_open_hash *ht,
-					      u32 key,
-					      struct drm_mm_node **node)
-{
-	struct psb_gtt_mem_mapping *entry;
-
-	entry = psb_gtt_mm_remove_mem_mapping_locked(ht, key);
-	if (!entry) {
-		DRM_DEBUG("entry is NULL\n");
-		return -EINVAL;
-	}
-
-	*node = entry->node;
-
-	kfree(entry);
-	return 0;
-}
-
-static int psb_gtt_add_node(struct psb_gtt_mm *mm,
-			    u32 tgid,
-			    u32 key,
-			    struct drm_mm_node *node,
-			    struct psb_gtt_mem_mapping **entry)
-{
-	struct psb_gtt_hash_entry *hentry;
-	struct psb_gtt_mem_mapping *mapping;
-	int ret;
-
-	ret = psb_gtt_mm_alloc_insert_ht(mm, tgid, &hentry);
-	if (ret) {
-		DRM_DEBUG("alloc_insert failed\n");
-		return ret;
-	}
-
-	ret = psb_gtt_mm_alloc_insert_mem_mapping(mm,
-						  &hentry->ht,
-						  key,
-						  node,
-						  &mapping);
-	if (ret) {
-		DRM_DEBUG("mapping alloc_insert failed\n");
-		return ret;
-	}
-
-	*entry = mapping;
-
-	return 0;
-}
-
-static int psb_gtt_remove_node(struct psb_gtt_mm *mm,
-			       u32 tgid,
-			       u32 key,
-			       struct drm_mm_node **node)
-{
-	struct psb_gtt_hash_entry *hentry;
-	struct drm_mm_node *tmp;
-	int ret;
-
-	spin_lock(&mm->lock);
-	ret = psb_gtt_mm_get_ht_by_pid_locked(mm, tgid, &hentry);
-	if (ret) {
-		DRM_DEBUG("Cannot find entry for pid %ld\n", tgid);
-		spin_unlock(&mm->lock);
-		return ret;
-	}
-	spin_unlock(&mm->lock);
-
-	/*remove mapping entry*/
-	spin_lock(&mm->lock);
-	ret = psb_gtt_mm_remove_free_mem_mapping_locked(&hentry->ht,
-							key,
-							&tmp);
-	if (ret) {
-		DRM_DEBUG("remove_free failed\n");
-		spin_unlock(&mm->lock);
-		return ret;
-	}
-
-	*node = tmp;
-
-	/*check the count of mapping entry*/
-	if (!hentry->count) {
-		DRM_DEBUG("count of mapping entry is zero, tgid=%ld\n", tgid);
-		psb_gtt_mm_remove_free_ht_locked(mm, tgid);
-	}
-
-	spin_unlock(&mm->lock);
-
-	return 0;
-}
-
-static int psb_gtt_mm_alloc_mem(struct psb_gtt_mm *mm,
-				uint32_t pages,
-				uint32_t align,
-				struct drm_mm_node **node)
-{
-	struct drm_mm_node *tmp_node;
-	int ret;
-
-	do {
-		ret = drm_mm_pre_get(&mm->base);
-		if (unlikely(ret)) {
-			DRM_DEBUG("drm_mm_pre_get error\n");
-			return ret;
-		}
-
-		spin_lock(&mm->lock);
-		tmp_node = drm_mm_search_free(&mm->base, pages, align, 1);
-		if (unlikely(!tmp_node)) {
-			DRM_DEBUG("No free node found\n");
-			spin_unlock(&mm->lock);
-			break;
-		}
-
-		tmp_node = drm_mm_get_block_atomic(tmp_node, pages, align);
-		spin_unlock(&mm->lock);
-	} while (!tmp_node);
-
-	if (!tmp_node) {
-		DRM_DEBUG("Node allocation failed\n");
-		return -ENOMEM;
-	}
-
-	*node = tmp_node;
-	return 0;
-}
-
-static void psb_gtt_mm_free_mem(struct psb_gtt_mm *mm, struct drm_mm_node *node)
-{
-	spin_lock(&mm->lock);
-	drm_mm_put_block(node);
-	spin_unlock(&mm->lock);
-}
-
-int psb_gtt_map_meminfo(struct drm_device *dev,
-			void *hKernelMemInfo,
-			uint32_t *offset)
-{
-	return -EINVAL;
-	/* FIXMEAC */
-#if 0
-	struct drm_psb_private *dev_priv
-	       = (struct drm_psb_private *)dev->dev_private;
-	void *psKernelMemInfo;
-	struct psb_gtt_mm *mm = dev_priv->gtt_mm;
-	struct psb_gtt *pg = dev_priv->pg;
-	uint32_t size, pages, offset_pages;
-	void *kmem;
-	struct drm_mm_node *node;
-	struct page **page_list;
-	struct psb_gtt_mem_mapping *mapping = NULL;
-	int ret;
-
-	ret = psb_get_meminfo_by_handle(hKernelMemInfo, &psKernelMemInfo);
-	if (ret) {
-		DRM_DEBUG("Cannot find kernelMemInfo handle %ld\n",
-			  hKernelMemInfo);
-		return -EINVAL;
-	}
-
-	DRM_DEBUG("Got psKernelMemInfo %p for handle %lx\n",
-		  psKernelMemInfo, (u32)hKernelMemInfo);
-	size = psKernelMemInfo->ui32AllocSize;
-	kmem = psKernelMemInfo->pvLinAddrKM;
-	pages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
-
-	DRM_DEBUG("KerMemInfo size %ld, cpuVadr %lx, pages %ld, osMemHdl %lx\n",
-		  size, kmem, pages, psKernelMemInfo->sMemBlk.hOSMemHandle);
-
-	if (!kmem)
-		DRM_DEBUG("kmem is NULL");
-
-	/*get pages*/
-	ret = psb_get_pages_by_mem_handle(psKernelMemInfo->sMemBlk.hOSMemHandle,
-					  &page_list);
-	if (ret) {
-		DRM_DEBUG("get pages error\n");
-		return ret;
-	}
-
-	DRM_DEBUG("get %ld pages\n", pages);
-
-	/*alloc memory in TT apeture*/
-	ret = psb_gtt_mm_alloc_mem(mm, pages, 0, &node);
-	if (ret) {
-		DRM_DEBUG("alloc TT memory error\n");
-		goto failed_pages_alloc;
-	}
-
-	/*update psb_gtt_mm*/
-	ret = psb_gtt_add_node(mm,
-			       task_tgid_nr(current),
-			       (u32)hKernelMemInfo,
-			       node,
-			       &mapping);
-	if (ret) {
-		DRM_DEBUG("add_node failed");
-		goto failed_add_node;
-	}
-
-	node = mapping->node;
-	offset_pages = node->start;
-
-	DRM_DEBUG("get free node for %ld pages, offset %ld pages",
-		  pages, offset_pages);
-
-	/*update gtt*/
-	psb_gtt_insert_pages(pg, page_list,
-			     (unsigned)offset_pages,
-			     (unsigned)pages,
-			     0,
-			     0,
-			     0);
-
-	*offset = offset_pages;
-	return 0;
-
-failed_add_node:
-	psb_gtt_mm_free_mem(mm, node);
-failed_pages_alloc:
-	kfree(page_list);
-	return ret;
-#endif
-}
-
-int psb_gtt_unmap_meminfo(struct drm_device *dev, void * hKernelMemInfo)
-{
-	struct drm_psb_private *dev_priv
-	       = (struct drm_psb_private *)dev->dev_private;
-	struct psb_gtt_mm *mm = dev_priv->gtt_mm;
-	struct psb_gtt *pg = dev_priv->pg;
-	uint32_t pages, offset_pages;
-	struct drm_mm_node *node;
-	int ret;
-
-	ret = psb_gtt_remove_node(mm,
-			task_tgid_nr(current),
-			(u32)hKernelMemInfo,
-			&node);
-	if (ret) {
-		DRM_DEBUG("remove node failed\n");
-		return ret;
-	}
-
-	/*remove gtt entries*/
-	offset_pages = node->start;
-	pages = node->size;
-
-	psb_gtt_remove_pages(pg, offset_pages, pages, 0, 0, 1);
-
-
-	/*free tt node*/
-
-	psb_gtt_mm_free_mem(mm, node);
-	return 0;
-}
-
-int psb_gtt_map_meminfo_ioctl(struct drm_device *dev, void *data,
-			       struct drm_file *file_priv)
-{
-	struct psb_gtt_mapping_arg *arg
-	       = (struct psb_gtt_mapping_arg *)data;
-	uint32_t *offset_pages = &arg->offset_pages;
-
-	DRM_DEBUG("\n");
-
-	return psb_gtt_map_meminfo(dev, arg->hKernelMemInfo, offset_pages);
-}
-
-int psb_gtt_unmap_meminfo_ioctl(struct drm_device *dev, void *data,
-				struct drm_file *file_priv)
-{
-
-	struct psb_gtt_mapping_arg *arg
-	       = (struct psb_gtt_mapping_arg *)data;
-
-	DRM_DEBUG("\n");
-
-	return psb_gtt_unmap_meminfo(dev, arg->hKernelMemInfo);
-}
-
-int psb_gtt_map_pvr_memory(struct drm_device *dev,  unsigned int hHandle,
-			unsigned int ui32TaskId, dma_addr_t *pPages,
-			unsigned int ui32PagesNum, unsigned int *ui32Offset)
-{
-	struct drm_psb_private *dev_priv = dev->dev_private;
-	struct psb_gtt_mm *mm = dev_priv->gtt_mm;
-	struct psb_gtt *pg = dev_priv->pg;
-	uint32_t size, pages, offset_pages;
-	struct drm_mm_node *node = NULL;
-	struct psb_gtt_mem_mapping *mapping = NULL;
-	int ret;
-
-	size = ui32PagesNum * PAGE_SIZE;
-	pages = 0;
-
-	/*alloc memory in TT apeture*/
-	ret = psb_gtt_mm_alloc_mem(mm, ui32PagesNum, 0, &node);
-	if (ret) {
-		DRM_DEBUG("alloc TT memory error\n");
-		goto failed_pages_alloc;
-	}
-
-   /*update psb_gtt_mm*/
-	ret = psb_gtt_add_node(mm,
-						   (u32)ui32TaskId,
-						   (u32)hHandle,
-						   node,
-						   &mapping);
-	if (ret) {
-		DRM_DEBUG("add_node failed");
-		goto failed_add_node;
-	}
-
-	node = mapping->node;
-	offset_pages = node->start;
-
-	DRM_DEBUG("get free node for %ld pages, offset %ld pages",
-							pages, offset_pages);
-
-	/*update gtt*/
-	psb_gtt_insert_phys_addresses(pg, pPages, (unsigned)offset_pages,
-						(unsigned)ui32PagesNum, 0);
-
-	*ui32Offset = offset_pages;
-	return 0;
-
-failed_add_node:
-	psb_gtt_mm_free_mem(mm, node);
-failed_pages_alloc:
-	return ret;
-}
-
-
-int psb_gtt_unmap_pvr_memory(struct drm_device *dev, unsigned int hHandle,
-						unsigned int ui32TaskId)
-{
-	struct drm_psb_private *dev_priv = dev->dev_private;
-	struct psb_gtt_mm *mm = dev_priv->gtt_mm;
-	struct psb_gtt *pg = dev_priv->pg;
-	uint32_t pages, offset_pages;
-	struct drm_mm_node *node;
-	int ret;
-
-	ret = psb_gtt_remove_node(mm, (u32)ui32TaskId, (u32)hHandle, &node);
-	if (ret) {
-		printk(KERN_ERR "remove node failed\n");
-		return ret;
-	}
-
-	/*remove gtt entries*/
-	offset_pages = node->start;
-	pages = node->size;
-
-	psb_gtt_remove_pages(pg, offset_pages, pages, 0, 0, 1);
-
-	/*free tt node*/
-	psb_gtt_mm_free_mem(mm, node);
-	return 0;
-}
diff --git a/drivers/staging/gma500/psb_gtt.h b/drivers/staging/gma500/psb_gtt.h
index 0272f83b461e..535ae00f2ab9 100644
--- a/drivers/staging/gma500/psb_gtt.h
+++ b/drivers/staging/gma500/psb_gtt.h
@@ -22,84 +22,40 @@
 
 #include <drm/drmP.h>
 
-/*#include "img_types.h"*/
-
 struct psb_gtt {
 	struct drm_device *dev;
-	int initialized;
 	uint32_t gatt_start;
 	uint32_t mmu_gatt_start;
-	uint32_t ci_start;
-	uint32_t rar_start;
 	uint32_t gtt_start;
 	uint32_t gtt_phys_start;
 	unsigned gtt_pages;
 	unsigned gatt_pages;
-	uint32_t stolen_base;
-	void *vram_addr;
-	uint32_t pge_ctl;
-	u16 gmch_ctrl;
 	unsigned long stolen_size;
 	unsigned long vram_stolen_size;
-	unsigned long ci_stolen_size;
-	unsigned long rar_stolen_size;
-	uint32_t *gtt_map;
 	struct rw_semaphore sem;
 };
 
-struct psb_gtt_mm {
-	struct drm_mm base;
-	struct drm_open_hash hash;
-	uint32_t count;
-	spinlock_t lock;
-};
-
-struct psb_gtt_hash_entry {
-	struct drm_open_hash ht;
-	uint32_t count;
-	struct drm_hash_item item;
-};
-
-struct psb_gtt_mem_mapping {
-	struct drm_mm_node *node;
-	struct drm_hash_item item;
-};
-
 /*Exported functions*/
-extern int psb_gtt_init(struct psb_gtt *pg, int resume);
-extern int psb_gtt_insert_pages(struct psb_gtt *pg, struct page **pages,
-				unsigned offset_pages, unsigned num_pages,
-				unsigned desired_tile_stride,
-				unsigned hw_tile_stride, int type);
-extern int psb_gtt_remove_pages(struct psb_gtt *pg, unsigned offset_pages,
-				unsigned num_pages,
-				unsigned desired_tile_stride,
-				unsigned hw_tile_stride,
-				int rc_prot);
-
-extern struct psb_gtt *psb_gtt_alloc(struct drm_device *dev);
-extern void psb_gtt_takedown(struct psb_gtt *pg, int free);
-extern int psb_gtt_map_meminfo(struct drm_device *dev,
-				void * hKernelMemInfo,
-				uint32_t *offset);
-extern int psb_gtt_unmap_meminfo(struct drm_device *dev,
-				 void * hKernelMemInfo);
-extern int psb_gtt_map_meminfo_ioctl(struct drm_device *dev, void *data,
-				     struct drm_file *file_priv);
-extern int psb_gtt_unmap_meminfo_ioctl(struct drm_device *dev, void *data,
-				       struct drm_file *file_priv);
-extern int psb_gtt_mm_init(struct psb_gtt *pg);
-extern void psb_gtt_mm_takedown(void);
-
-extern int psb_gtt_map_pvr_memory(struct drm_device *dev,
-                                                                  unsigned int hHandle,
-                                                                  unsigned int ui32TaskId,
-                                                                  dma_addr_t *pPages,
-                                                                  unsigned int ui32PagesNum,
-                                                                  unsigned int *ui32Offset);
+extern int psb_gtt_init(struct drm_device *dev, int resume);
+extern void psb_gtt_takedown(struct drm_device *dev);
+
+/* Each gtt_range describes an allocation in the GTT area */
+struct gtt_range {
+	struct resource resource;
+	u32 offset;
+	struct kref kref;
+	struct drm_gem_object gem;	/* GEM high level stuff */
+	int in_gart;			/* Currently in the GART (ref ct) */
+        bool stolen;			/* Backed from stolen RAM */
+        bool mmapping;			/* Is mmappable */
+	struct page **pages;		/* Backing pages if present */
+};
 
-extern int psb_gtt_unmap_pvr_memory(struct drm_device *dev,
-                                                                        unsigned int hHandle,
-                                                                        unsigned int ui32TaskId);
+extern struct gtt_range *psb_gtt_alloc_range(struct drm_device *dev, int len,
+						const char *name, int backed);
+extern void psb_gtt_kref_put(struct gtt_range *gt);
+extern void psb_gtt_free_range(struct drm_device *dev, struct gtt_range *gt);
+extern int psb_gtt_pin(struct gtt_range *gt);
+extern void psb_gtt_unpin(struct gtt_range *gt);
 
 #endif
diff --git a/drivers/staging/gma500/psb_intel_bios.c b/drivers/staging/gma500/psb_intel_bios.c
index 48ac8ba7f40b..417965da5e24 100644
--- a/drivers/staging/gma500/psb_intel_bios.c
+++ b/drivers/staging/gma500/psb_intel_bios.c
@@ -154,10 +154,15 @@ static void parse_lfp_panel_data(struct drm_psb_private *dev_priv,
 
 	fill_detail_timing_data(panel_fixed_mode, dvo_timing);
 
-	dev_priv->lfp_lvds_vbt_mode = panel_fixed_mode;
-
-	DRM_DEBUG("Found panel mode in BIOS VBT tables:\n");
-	drm_mode_debug_printmodeline(panel_fixed_mode);
+	if (panel_fixed_mode->htotal > 0 && panel_fixed_mode->vtotal > 0) {
+		dev_priv->lfp_lvds_vbt_mode = panel_fixed_mode;
+		DRM_DEBUG("Found panel mode in BIOS VBT tables:\n");
+		drm_mode_debug_printmodeline(panel_fixed_mode);
+	} else {
+		DRM_DEBUG("Ignoring bogus LVDS VBT mode.\n");
+		dev_priv->lvds_vbt = 0;
+		kfree(panel_fixed_mode);
+	}
 
 	return;
 }
diff --git a/drivers/staging/gma500/psb_intel_display.c b/drivers/staging/gma500/psb_intel_display.c
index 80b37f4ca10a..4f47d09d65de 100644
--- a/drivers/staging/gma500/psb_intel_display.c
+++ b/drivers/staging/gma500/psb_intel_display.c
@@ -341,9 +341,8 @@ int psb_intel_pipe_set_base(struct drm_crtc *crtc,
 	/* struct drm_i915_master_private *master_priv; */
 	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
 	struct psb_framebuffer *psbfb = to_psb_fb(crtc->fb);
-	struct psb_intel_mode_device *mode_dev = psb_intel_crtc->mode_dev;
 	int pipe = psb_intel_crtc->pipe;
-	unsigned long Start, Offset;
+	unsigned long start, offset;
 	int dspbase = (pipe == 0 ? DSPABASE : DSPBBASE);
 	int dspsurf = (pipe == 0 ? DSPASURF : DSPBSURF);
 	int dspstride = (pipe == 0) ? DSPASTRIDE : DSPBSTRIDE;
@@ -359,12 +358,17 @@ int psb_intel_pipe_set_base(struct drm_crtc *crtc,
 		return 0;
 	}
 
-	if (!ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND,
-				       OSPM_UHB_FORCE_POWER_ON))
+	if (!gma_power_begin(dev, true))
 		return 0;
 
-	Start = mode_dev->bo_offset(dev, psbfb);
-	Offset = y * crtc->fb->pitch + x * (crtc->fb->bits_per_pixel / 8);
+	/* We are displaying this buffer, make sure it is actually loaded
+	   into the GTT */
+	ret = psb_gtt_pin(psbfb->gtt);
+	if (ret < 0)
+		goto psb_intel_pipe_set_base_exit;
+	start = psbfb->gtt->offset;
+
+	offset = y * crtc->fb->pitch + x * (crtc->fb->bits_per_pixel / 8);
 
 	REG_WRITE(dspstride, crtc->fb->pitch);
 
@@ -388,25 +392,29 @@ int psb_intel_pipe_set_base(struct drm_crtc *crtc,
 	default:
 		DRM_ERROR("Unknown color depth\n");
 		ret = -EINVAL;
+		psb_gtt_unpin(psbfb->gtt);
 		goto psb_intel_pipe_set_base_exit;
 	}
 	REG_WRITE(dspcntr_reg, dspcntr);
 
-	DRM_DEBUG("Writing base %08lX %08lX %d %d\n", Start, Offset, x, y);
+
+	DRM_DEBUG("Writing base %08lX %08lX %d %d\n", start, offset, x, y);
 	if (0 /* FIXMEAC - check what PSB needs */) {
-		REG_WRITE(dspbase, Offset);
+		REG_WRITE(dspbase, offset);
 		REG_READ(dspbase);
-		REG_WRITE(dspsurf, Start);
+		REG_WRITE(dspsurf, start);
 		REG_READ(dspsurf);
 	} else {
-		REG_WRITE(dspbase, Start + Offset);
+		REG_WRITE(dspbase, start + offset);
 		REG_READ(dspbase);
 	}
 
-psb_intel_pipe_set_base_exit:
-
-	ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+	/* If there was a previous display we can now unpin it */
+	if (old_fb)
+		psb_gtt_unpin(to_psb_fb(old_fb)->gtt);
 
+psb_intel_pipe_set_base_exit:
+	gma_power_end(dev);
 	return ret;
 }
 
@@ -816,8 +824,7 @@ void psb_intel_crtc_load_lut(struct drm_crtc *crtc)
 		return;
 	}
 
-	if (ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND,
-				      OSPM_UHB_ONLY_IF_ON)) {
+	if (gma_power_begin(dev, false)) {
 		for (i = 0; i < 256; i++) {
 			REG_WRITE(palreg + 4 * i,
 				  ((psb_intel_crtc->lut_r[i] +
@@ -827,7 +834,7 @@ void psb_intel_crtc_load_lut(struct drm_crtc *crtc)
 				  (psb_intel_crtc->lut_b[i] +
 				  psb_intel_crtc->lut_adj[i]));
 		}
-		ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+		gma_power_end(dev);
 	} else {
 		for (i = 0; i < 256; i++) {
 			dev_priv->save_palette_a[i] =
@@ -1022,19 +1029,14 @@ static int psb_intel_crtc_cursor_set(struct drm_crtc *crtc,
 				 uint32_t width, uint32_t height)
 {
 	struct drm_device *dev = crtc->dev;
-	struct drm_psb_private *dev_priv =
-				(struct drm_psb_private *)dev->dev_private;
-	struct psb_gtt *pg = dev_priv->pg;
 	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
-	struct psb_intel_mode_device *mode_dev = psb_intel_crtc->mode_dev;
 	int pipe = psb_intel_crtc->pipe;
 	uint32_t control = (pipe == 0) ? CURACNTR : CURBCNTR;
 	uint32_t base = (pipe == 0) ? CURABASE : CURBBASE;
 	uint32_t temp;
 	size_t addr = 0;
-	uint32_t page_offset;
-	size_t size;
-	void *bo;
+	struct gtt_range *gt;
+	struct drm_gem_object *obj;
 	int ret;
 
 	DRM_DEBUG("\n");
@@ -1043,22 +1045,21 @@ static int psb_intel_crtc_cursor_set(struct drm_crtc *crtc,
 	if (!handle) {
 		DRM_DEBUG("cursor off\n");
 		/* turn off the cursor */
-		temp = 0;
-		temp |= CURSOR_MODE_DISABLE;
+		temp = CURSOR_MODE_DISABLE;
 
-		if (ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND,
-					      OSPM_UHB_ONLY_IF_ON)) {
+		if (gma_power_begin(dev, false)) {
 			REG_WRITE(control, temp);
 			REG_WRITE(base, 0);
-			ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+			gma_power_end(dev);
 		}
 
-		/* unpin the old bo */
-		if (psb_intel_crtc->cursor_bo) {
-			mode_dev->bo_unpin_for_scanout(dev,
-						       psb_intel_crtc->
-						       cursor_bo);
-			psb_intel_crtc->cursor_bo = NULL;
+		/* Unpin the old GEM object */
+		if (psb_intel_crtc->cursor_obj) {
+			gt = container_of(psb_intel_crtc->cursor_obj,
+							struct gtt_range, gem);
+			psb_gtt_unpin(gt);
+			drm_gem_object_unreference(psb_intel_crtc->cursor_obj);
+			psb_intel_crtc->cursor_obj = NULL;
 		}
 
 		return 0;
@@ -1070,32 +1071,26 @@ static int psb_intel_crtc_cursor_set(struct drm_crtc *crtc,
 		return -EINVAL;
 	}
 
-	bo = mode_dev->bo_from_handle(dev, file_priv, handle);
-	if (!bo)
+	obj = drm_gem_object_lookup(dev, file_priv, handle);
+	if (!obj)
 		return -ENOENT;
 
-	ret = mode_dev->bo_pin_for_scanout(dev, bo);
-	if (ret)
-		return ret;
-	size = mode_dev->bo_size(dev, bo);
-	if (size < width * height * 4) {
+	if (obj->size < width * height * 4) {
 		DRM_ERROR("buffer is to small\n");
 		return -ENOMEM;
 	}
 
-	/*insert this bo into gtt*/
-	DRM_DEBUG("%s: map meminfo for hw cursor. handle %x\n",
-						__func__, handle);
+	gt = container_of(obj, struct gtt_range, gem);
 
-	ret = psb_gtt_map_meminfo(dev, (void *)handle, &page_offset);
+	/* Pin the memory into the GTT */
+	ret = psb_gtt_pin(gt);
 	if (ret) {
-		DRM_ERROR("Can not map meminfo to GTT. handle 0x%x\n", handle);
+		DRM_ERROR("Can not pin down handle 0x%x\n", handle);
 		return ret;
 	}
 
-	addr = page_offset << PAGE_SHIFT;
 
-	addr += pg->stolen_base;
+	addr = gt->offset;	/* Or resource.start ??? */
 
 	psb_intel_crtc->cursor_addr = addr;
 
@@ -1104,17 +1099,19 @@ static int psb_intel_crtc_cursor_set(struct drm_crtc *crtc,
 	temp |= (pipe << 28);
 	temp |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
 
-	if (ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND,
-				      OSPM_UHB_ONLY_IF_ON)) {
+	if (gma_power_begin(dev, false)) {
 		REG_WRITE(control, temp);
 		REG_WRITE(base, addr);
-		ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+		gma_power_end(dev);
 	}
 
 	/* unpin the old bo */
-	if (psb_intel_crtc->cursor_bo && psb_intel_crtc->cursor_bo != bo) {
-		mode_dev->bo_unpin_for_scanout(dev, psb_intel_crtc->cursor_bo);
-		psb_intel_crtc->cursor_bo = bo;
+	if (psb_intel_crtc->cursor_obj && psb_intel_crtc->cursor_obj != obj) {
+		gt = container_of(psb_intel_crtc->cursor_obj,
+							struct gtt_range, gem);
+		psb_gtt_unpin(gt);
+		drm_gem_object_unreference(psb_intel_crtc->cursor_obj);
+		psb_intel_crtc->cursor_obj = obj;
 	}
 
 	return 0;
@@ -1126,7 +1123,7 @@ static int psb_intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
 	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
 	int pipe = psb_intel_crtc->pipe;
 	uint32_t temp = 0;
-	uint32_t adder;
+	uint32_t addr;
 
 
 	if (x < 0) {
@@ -1141,13 +1138,12 @@ static int psb_intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
 	temp |= ((x & CURSOR_POS_MASK) << CURSOR_X_SHIFT);
 	temp |= ((y & CURSOR_POS_MASK) << CURSOR_Y_SHIFT);
 
-	adder = psb_intel_crtc->cursor_addr;
+	addr = psb_intel_crtc->cursor_addr;
 
-	if (ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND,
-				      OSPM_UHB_ONLY_IF_ON)) {
+	if (gma_power_begin(dev, false)) {
 		REG_WRITE((pipe == 0) ? CURAPOS : CURBPOS, temp);
-		REG_WRITE((pipe == 0) ? CURABASE : CURBBASE, adder);
-		ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+		REG_WRITE((pipe == 0) ? CURABASE : CURBBASE, addr);
+		gma_power_end(dev);
 	}
 	return 0;
 }
@@ -1197,15 +1193,14 @@ static int psb_intel_crtc_clock_get(struct drm_device *dev,
 	bool is_lvds;
 	struct drm_psb_private *dev_priv = dev->dev_private;
 
-	if (ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND,
-				      OSPM_UHB_ONLY_IF_ON)) {
+	if (gma_power_begin(dev, false)) {
 		dpll = REG_READ((pipe == 0) ? DPLL_A : DPLL_B);
 		if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0)
 			fp = REG_READ((pipe == 0) ? FPA0 : FPB0);
 		else
 			fp = REG_READ((pipe == 0) ? FPA1 : FPB1);
 		is_lvds = (pipe == 1) && (REG_READ(LVDS) & LVDS_PORT_EN);
-		ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+		gma_power_end(dev);
 	} else {
 		dpll = (pipe == 0) ?
 			dev_priv->saveDPLL_A : dev_priv->saveDPLL_B;
@@ -1277,13 +1272,12 @@ struct drm_display_mode *psb_intel_crtc_mode_get(struct drm_device *dev,
 	int vsync;
 	struct drm_psb_private *dev_priv = dev->dev_private;
 
-	if (ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND,
-				      OSPM_UHB_ONLY_IF_ON)) {
+	if (gma_power_begin(dev, false)) {
 		htot = REG_READ((pipe == 0) ? HTOTAL_A : HTOTAL_B);
 		hsync = REG_READ((pipe == 0) ? HSYNC_A : HSYNC_B);
 		vtot = REG_READ((pipe == 0) ? VTOTAL_A : VTOTAL_B);
 		vsync = REG_READ((pipe == 0) ? VSYNC_A : VSYNC_B);
-		ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+		gma_power_end(dev);
 	} else {
 		htot = (pipe == 0) ?
 			dev_priv->saveHTOTAL_A : dev_priv->saveHTOTAL_B;
@@ -1318,7 +1312,16 @@ struct drm_display_mode *psb_intel_crtc_mode_get(struct drm_device *dev,
 static void psb_intel_crtc_destroy(struct drm_crtc *crtc)
 {
 	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
-
+	struct gtt_range *gt;
+
+	/* Unpin the old GEM object */
+	if (psb_intel_crtc->cursor_obj) {
+		gt = container_of(psb_intel_crtc->cursor_obj,
+						struct gtt_range, gem);
+		psb_gtt_unpin(gt);
+		drm_gem_object_unreference(psb_intel_crtc->cursor_obj);
+		psb_intel_crtc->cursor_obj = NULL;
+	}
 	kfree(psb_intel_crtc->crtc_state);
 	drm_crtc_cleanup(crtc);
 	kfree(psb_intel_crtc);
@@ -1333,10 +1336,6 @@ static const struct drm_crtc_helper_funcs psb_intel_helper_funcs = {
 	.commit = psb_intel_crtc_commit,
 };
 
-static const struct drm_crtc_helper_funcs mrst_helper_funcs;
-static const struct drm_crtc_helper_funcs mdfld_helper_funcs;
-const struct drm_crtc_funcs mdfld_intel_crtc_funcs;
-
 const struct drm_crtc_funcs psb_intel_crtc_funcs = {
 	.save = psb_intel_crtc_save,
 	.restore = psb_intel_crtc_restore,
@@ -1397,7 +1396,11 @@ void psb_intel_crtc_init(struct drm_device *dev, int pipe,
 	psb_intel_crtc->mode_dev = mode_dev;
 	psb_intel_crtc->cursor_addr = 0;
 
-	drm_crtc_helper_add(&psb_intel_crtc->base,
+	if (IS_MRST(dev))
+		drm_crtc_helper_add(&psb_intel_crtc->base,
+				    &mrst_helper_funcs);
+	else
+		drm_crtc_helper_add(&psb_intel_crtc->base,
 				    &psb_intel_helper_funcs);
 
 	/* Setup the array of drm_connector pointer array */
diff --git a/drivers/staging/gma500/psb_intel_drv.h b/drivers/staging/gma500/psb_intel_drv.h
index f6229c56de40..6006ddd993f2 100644
--- a/drivers/staging/gma500/psb_intel_drv.h
+++ b/drivers/staging/gma500/psb_intel_drv.h
@@ -76,13 +76,7 @@ struct psb_intel_mode_device {
 	/*
 	 * Abstracted memory manager operations
 	 */
-	void *(*bo_from_handle) (struct drm_device *dev,
-				 struct drm_file *file_priv,
-				 unsigned int handle);
-	 size_t(*bo_size) (struct drm_device *dev, void *bo);
 	 size_t(*bo_offset) (struct drm_device *dev, void *bo);
-	int (*bo_pin_for_scanout) (struct drm_device *dev, void *bo);
-	int (*bo_unpin_for_scanout) (struct drm_device *dev, void *bo);
 
 	/*
 	 * Cursor
@@ -156,11 +150,8 @@ struct psb_intel_crtc {
 	/* a mode_set for fbdev users on this crtc */
 	struct drm_mode_set mode_set;
 
-	/* current bo we scanout from */
-	void *scanout_bo;
-
-	/* current bo we cursor from */
-	void *cursor_bo;
+	/* GEM object that holds our cursor */
+	struct drm_gem_object *cursor_obj;
 
 	struct drm_display_mode saved_mode;
 	struct drm_display_mode saved_adjusted_mode;
diff --git a/drivers/staging/gma500/psb_intel_lvds.c b/drivers/staging/gma500/psb_intel_lvds.c
index d3d210a1026a..b0a225b9f562 100644
--- a/drivers/staging/gma500/psb_intel_lvds.c
+++ b/drivers/staging/gma500/psb_intel_lvds.c
@@ -32,13 +32,6 @@
 #include "psb_powermgmt.h"
 #include <linux/pm_runtime.h>
 
-/* MRST defines start */
-uint8_t blc_freq;
-uint8_t blc_minbrightness;
-uint8_t blc_i2caddr;
-uint8_t blc_brightnesscmd;
-int lvds_backlight;		/* restore backlight to this value */
-
 u32 CoreClock;
 u32 PWMControlRegFreq;
 
@@ -83,13 +76,12 @@ static u32 psb_intel_lvds_get_max_backlight(struct drm_device *dev)
 	struct drm_psb_private *dev_priv = dev->dev_private;
 	u32 retVal;
 
-	if (ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND,
-					OSPM_UHB_ONLY_IF_ON)) {
+	if (gma_power_begin(dev, false)) {
 		retVal = ((REG_READ(BLC_PWM_CTL) &
 			  BACKLIGHT_MODULATION_FREQ_MASK) >>
 			  BACKLIGHT_MODULATION_FREQ_SHIFT) * 2;
 
-		ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+		gma_power_end(dev);
 	} else
 		retVal = ((dev_priv->saveBLC_PWM_CTL &
 			  BACKLIGHT_MODULATION_FREQ_MASK) >>
@@ -98,8 +90,11 @@ static u32 psb_intel_lvds_get_max_backlight(struct drm_device *dev)
 	return retVal;
 }
 
-/**
+/*
  * Set LVDS backlight level by I2C command
+ *
+ * FIXME: at some point we need to both track this for PM and also
+ * disable runtime pm on MRST if the brightness is nil (ie blanked)
  */
 static int psb_lvds_i2c_set_brightness(struct drm_device *dev,
 					unsigned int level)
@@ -132,7 +127,7 @@ static int psb_lvds_i2c_set_brightness(struct drm_device *dev,
 
 	if (i2c_transfer(&lvds_i2c_bus->adapter, msgs, 1) == 1) {
 		DRM_DEBUG("I2C set brightness.(command, value) (%d, %d)\n",
-			blc_brightnesscmd,
+			dev_priv->lvds_bl->brightnesscmd,
 			blc_i2c_brightness);
 		return 0;
 	}
@@ -200,14 +195,13 @@ static void psb_intel_lvds_set_backlight(struct drm_device *dev, int level)
 	struct drm_psb_private *dev_priv = dev->dev_private;
 	u32 blc_pwm_ctl;
 
-	if (ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND,
-					OSPM_UHB_ONLY_IF_ON)) {
+	if (gma_power_begin(dev, false)) {
 		blc_pwm_ctl =
 			REG_READ(BLC_PWM_CTL) & ~BACKLIGHT_DUTY_CYCLE_MASK;
 		REG_WRITE(BLC_PWM_CTL,
 				(blc_pwm_ctl |
 				(level << BACKLIGHT_DUTY_CYCLE_SHIFT)));
-		ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+		gma_power_end(dev);
 	} else {
 		blc_pwm_ctl = dev_priv->saveBLC_PWM_CTL &
 				~BACKLIGHT_DUTY_CYCLE_MASK;
@@ -224,8 +218,7 @@ static void psb_intel_lvds_set_power(struct drm_device *dev,
 {
 	u32 pp_status;
 
-	if (!ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND,
-					OSPM_UHB_FORCE_POWER_ON))
+	if (!gma_power_begin(dev, true))
 		return;
 
 	if (on) {
@@ -248,7 +241,7 @@ static void psb_intel_lvds_set_power(struct drm_device *dev,
 		} while (pp_status & PP_ON);
 	}
 
-	ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+	gma_power_end(dev);
 }
 
 static void psb_intel_lvds_encoder_dpms(struct drm_encoder *encoder, int mode)
@@ -400,11 +393,15 @@ bool psb_intel_lvds_mode_fixup(struct drm_encoder *encoder,
 	if (psb_intel_output->type == INTEL_OUTPUT_MIPI2)
 		panel_fixed_mode = mode_dev->panel_fixed_mode2;
 
-	/* PSB doesn't appear to be GEN4 */
-	if (psb_intel_crtc->pipe == 0) {
+	/* PSB requires the LVDS is on pipe B, MRST has only one pipe anyway */
+	if (!IS_MRST(dev) && psb_intel_crtc->pipe == 0) {
 		printk(KERN_ERR "Can't support LVDS on pipe A\n");
 		return false;
 	}
+	if (IS_MRST(dev) && psb_intel_crtc->pipe != 0) {
+		printk(KERN_ERR "Must use PIPE A\n");
+		return false;
+	}
 	/* Should never happen!! */
 	list_for_each_entry(tmp_encoder, &dev->mode_config.encoder_list,
 			    head) {
@@ -445,7 +442,7 @@ bool psb_intel_lvds_mode_fixup(struct drm_encoder *encoder,
 	return true;
 }
 
-static void psb_intel_lvds_prepare(struct drm_encoder *encoder)
+void psb_intel_lvds_prepare(struct drm_encoder *encoder)
 {
 	struct drm_device *dev = encoder->dev;
 	struct psb_intel_output *output = enc_to_psb_intel_output(encoder);
@@ -453,8 +450,7 @@ static void psb_intel_lvds_prepare(struct drm_encoder *encoder)
 
 	PSB_DEBUG_ENTRY("\n");
 
-	if (!ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND,
-					OSPM_UHB_FORCE_POWER_ON))
+	if (!gma_power_begin(dev, true))
 		return;
 
 	mode_dev->saveBLC_PWM_CTL = REG_READ(BLC_PWM_CTL);
@@ -463,10 +459,10 @@ static void psb_intel_lvds_prepare(struct drm_encoder *encoder)
 
 	psb_intel_lvds_set_power(dev, output, false);
 
-	ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+	gma_power_end(dev);
 }
 
-static void psb_intel_lvds_commit(struct drm_encoder *encoder)
+void psb_intel_lvds_commit(struct drm_encoder *encoder)
 {
 	struct drm_device *dev = encoder->dev;
 	struct psb_intel_output *output = enc_to_psb_intel_output(encoder);
@@ -669,14 +665,14 @@ static const struct drm_encoder_helper_funcs psb_intel_lvds_helper_funcs = {
 	.commit = psb_intel_lvds_commit,
 };
 
-static const struct drm_connector_helper_funcs
+const struct drm_connector_helper_funcs
 				psb_intel_lvds_connector_helper_funcs = {
 	.get_modes = psb_intel_lvds_get_modes,
 	.mode_valid = psb_intel_lvds_mode_valid,
 	.best_encoder = psb_intel_best_encoder,
 };
 
-static const struct drm_connector_funcs psb_intel_lvds_connector_funcs = {
+const struct drm_connector_funcs psb_intel_lvds_connector_funcs = {
 	.dpms = drm_helper_connector_dpms,
 	.save = psb_intel_lvds_save,
 	.restore = psb_intel_lvds_restore,
diff --git a/drivers/staging/gma500/psb_intel_sdvo.c b/drivers/staging/gma500/psb_intel_sdvo.c
index 1d2bb021c0a5..df1c006ecfaa 100644
--- a/drivers/staging/gma500/psb_intel_sdvo.c
+++ b/drivers/staging/gma500/psb_intel_sdvo.c
@@ -204,7 +204,7 @@ static void psb_intel_sdvo_write_cmd(struct psb_intel_output *psb_intel_output,
 	struct psb_intel_sdvo_priv *sdvo_priv = psb_intel_output->dev_priv;
 	int i;
 
-	if (1) {
+	if (0) {
 		DRM_DEBUG("%s: W: %02X ", SDVO_NAME(sdvo_priv), cmd);
 		for (i = 0; i < args_len; i++)
 			printk(KERN_INFO"%02X ", ((u8 *) args)[i]);
@@ -266,7 +266,7 @@ static u8 psb_intel_sdvo_read_response(
 					 SDVO_I2C_CMD_STATUS,
 					 &status);
 
-		if (1) {
+		if (0) {
 			DRM_DEBUG("%s: R: ", SDVO_NAME(sdvo_priv));
 			for (i = 0; i < response_len; i++)
 				printk(KERN_INFO"%02X ", ((u8 *) response)[i]);
diff --git a/drivers/staging/gma500/psb_irq.c b/drivers/staging/gma500/psb_irq.c
index 4597c8824721..9ea37e588874 100644
--- a/drivers/staging/gma500/psb_irq.c
+++ b/drivers/staging/gma500/psb_irq.c
@@ -88,13 +88,12 @@ psb_enable_pipestat(struct drm_psb_private *dev_priv, int pipe, u32 mask)
 		u32 reg = psb_pipestat(pipe);
 		dev_priv->pipestat[pipe] |= mask;
 		/* Enable the interrupt, clear any pending status */
-		if (ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND,
-							OSPM_UHB_ONLY_IF_ON)) {
+		if (gma_power_begin(dev_priv->dev, false)) {
 			u32 writeVal = PSB_RVDC32(reg);
 			writeVal |= (mask | (mask >> 16));
 			PSB_WVDC32(writeVal, reg);
 			(void) PSB_RVDC32(reg);
-			ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+			gma_power_end(dev_priv->dev);
 		}
 	}
 }
@@ -105,39 +104,36 @@ psb_disable_pipestat(struct drm_psb_private *dev_priv, int pipe, u32 mask)
 	if ((dev_priv->pipestat[pipe] & mask) != 0) {
 		u32 reg = psb_pipestat(pipe);
 		dev_priv->pipestat[pipe] &= ~mask;
-		if (ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND,
-							OSPM_UHB_ONLY_IF_ON)) {
+		if (gma_power_begin(dev_priv->dev, false)) {
 			u32 writeVal = PSB_RVDC32(reg);
 			writeVal &= ~mask;
 			PSB_WVDC32(writeVal, reg);
 			(void) PSB_RVDC32(reg);
-			ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+			gma_power_end(dev_priv->dev);
 		}
 	}
 }
 
 void mid_enable_pipe_event(struct drm_psb_private *dev_priv, int pipe)
 {
-	if (ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND,
-							OSPM_UHB_ONLY_IF_ON)) {
+	if (gma_power_begin(dev_priv->dev, false)) {
 		u32 pipe_event = mid_pipe_event(pipe);
 		dev_priv->vdc_irq_mask |= pipe_event;
 		PSB_WVDC32(~dev_priv->vdc_irq_mask, PSB_INT_MASK_R);
 		PSB_WVDC32(dev_priv->vdc_irq_mask, PSB_INT_ENABLE_R);
-		ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+		gma_power_end(dev_priv->dev);
 	}
 }
 
 void mid_disable_pipe_event(struct drm_psb_private *dev_priv, int pipe)
 {
 	if (dev_priv->pipestat[pipe] == 0) {
-		if (ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND,
-							OSPM_UHB_ONLY_IF_ON)) {
+		if (gma_power_begin(dev_priv->dev, false)) {
 			u32 pipe_event = mid_pipe_event(pipe);
 			dev_priv->vdc_irq_mask &= ~pipe_event;
 			PSB_WVDC32(~dev_priv->vdc_irq_mask, PSB_INT_MASK_R);
 			PSB_WVDC32(dev_priv->vdc_irq_mask, PSB_INT_ENABLE_R);
-			ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+			gma_power_end(dev_priv->dev);
 		}
 	}
 }
@@ -242,7 +238,7 @@ irqreturn_t psb_irq_handler(DRM_IRQ_ARGS)
 	vdc_stat &= dev_priv->vdc_irq_mask;
 	spin_unlock(&dev_priv->irqmask_lock);
 
-	if (dsp_int && ospm_power_is_hw_on(OSPM_DISPLAY_ISLAND)) {
+	if (dsp_int && gma_power_is_on(dev)) {
 		psb_vdc_interrupt(dev, vdc_stat);
 		handled = 1;
 	}
@@ -271,54 +267,28 @@ irqreturn_t psb_irq_handler(DRM_IRQ_ARGS)
 
 void psb_irq_preinstall(struct drm_device *dev)
 {
-	psb_irq_preinstall_islands(dev, OSPM_ALL_ISLANDS);
-}
-
-/**
- * FIXME: should I remove display irq enable here??
- */
-void psb_irq_preinstall_islands(struct drm_device *dev, int hw_islands)
-{
 	struct drm_psb_private *dev_priv =
 	    (struct drm_psb_private *) dev->dev_private;
 	unsigned long irqflags;
 
-	PSB_DEBUG_ENTRY("\n");
-
 	spin_lock_irqsave(&dev_priv->irqmask_lock, irqflags);
 
-	if (hw_islands & OSPM_DISPLAY_ISLAND) {
-		if (ospm_power_is_hw_on(OSPM_DISPLAY_ISLAND)) {
-			PSB_WVDC32(0xFFFFFFFF, PSB_HWSTAM);
-			if (dev->vblank_enabled[0])
-				dev_priv->vdc_irq_mask |=
-						_PSB_PIPEA_EVENT_FLAG;
-			if (dev->vblank_enabled[1])
-				dev_priv->vdc_irq_mask |=
-						_MDFLD_PIPEB_EVENT_FLAG;
-			if (dev->vblank_enabled[2])
-				dev_priv->vdc_irq_mask |=
-						_MDFLD_PIPEC_EVENT_FLAG;
-		}
-	}
-/* NO I DONT WANT ANY IRQS GRRR FIXMEAC */
-	if (hw_islands & OSPM_GRAPHICS_ISLAND)
-		dev_priv->vdc_irq_mask |= _PSB_IRQ_SGX_FLAG;
-/* */
+	if (gma_power_is_on(dev))
+		PSB_WVDC32(0xFFFFFFFF, PSB_HWSTAM);
+	if (dev->vblank_enabled[0])
+		dev_priv->vdc_irq_mask |= _PSB_PIPEA_EVENT_FLAG;
+	if (dev->vblank_enabled[1])
+		dev_priv->vdc_irq_mask |= _MDFLD_PIPEB_EVENT_FLAG;
+	if (dev->vblank_enabled[2])
+		dev_priv->vdc_irq_mask |= _MDFLD_PIPEC_EVENT_FLAG;
+
 	/*This register is safe even if display island is off*/
 	PSB_WVDC32(~dev_priv->vdc_irq_mask, PSB_INT_MASK_R);
-
 	spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
 }
 
 int psb_irq_postinstall(struct drm_device *dev)
 {
-	return psb_irq_postinstall_islands(dev, OSPM_ALL_ISLANDS);
-}
-
-int psb_irq_postinstall_islands(struct drm_device *dev, int hw_islands)
-{
-
 	struct drm_psb_private *dev_priv =
 	    (struct drm_psb_private *) dev->dev_private;
 	unsigned long irqflags;
@@ -327,48 +297,31 @@ int psb_irq_postinstall_islands(struct drm_device *dev, int hw_islands)
 
 	spin_lock_irqsave(&dev_priv->irqmask_lock, irqflags);
 
-	/*This register is safe even if display island is off*/
+	/* This register is safe even if display island is off */
 	PSB_WVDC32(dev_priv->vdc_irq_mask, PSB_INT_ENABLE_R);
+	PSB_WVDC32(0xFFFFFFFF, PSB_HWSTAM);
 
-	if (hw_islands & OSPM_DISPLAY_ISLAND) {
-		if (true/*powermgmt_is_hw_on(dev->pdev, PSB_DISPLAY_ISLAND)*/) {
-			PSB_WVDC32(0xFFFFFFFF, PSB_HWSTAM);
-
-			if (dev->vblank_enabled[0])
-				psb_enable_pipestat(dev_priv, 0,
-				    PIPE_VBLANK_INTERRUPT_ENABLE);
-			else
-				psb_disable_pipestat(dev_priv, 0,
-				    PIPE_VBLANK_INTERRUPT_ENABLE);
-
-			if (dev->vblank_enabled[1])
-					psb_enable_pipestat(dev_priv, 1,
-					    PIPE_VBLANK_INTERRUPT_ENABLE);
-			else
-				psb_disable_pipestat(dev_priv, 1,
-				    PIPE_VBLANK_INTERRUPT_ENABLE);
-
-			if (dev->vblank_enabled[2])
-				psb_enable_pipestat(dev_priv, 2,
-				    PIPE_VBLANK_INTERRUPT_ENABLE);
-			else
-				psb_disable_pipestat(dev_priv, 2,
-				    PIPE_VBLANK_INTERRUPT_ENABLE);
-		}
-	}
+	if (dev->vblank_enabled[0])
+		psb_enable_pipestat(dev_priv, 0, PIPE_VBLANK_INTERRUPT_ENABLE);
+	else
+		psb_disable_pipestat(dev_priv, 0, PIPE_VBLANK_INTERRUPT_ENABLE);
 
-	spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
+	if (dev->vblank_enabled[1])
+		psb_enable_pipestat(dev_priv, 1, PIPE_VBLANK_INTERRUPT_ENABLE);
+	else
+		psb_disable_pipestat(dev_priv, 1, PIPE_VBLANK_INTERRUPT_ENABLE);
 
+	if (dev->vblank_enabled[2])
+		psb_enable_pipestat(dev_priv, 2, PIPE_VBLANK_INTERRUPT_ENABLE);
+	else
+		psb_disable_pipestat(dev_priv, 2, PIPE_VBLANK_INTERRUPT_ENABLE);
+
+	spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
 	return 0;
 }
 
 void psb_irq_uninstall(struct drm_device *dev)
 {
-	psb_irq_uninstall_islands(dev, OSPM_ALL_ISLANDS);
-}
-
-void psb_irq_uninstall_islands(struct drm_device *dev, int hw_islands)
-{
 	struct drm_psb_private *dev_priv =
 	    (struct drm_psb_private *) dev->dev_private;
 	unsigned long irqflags;
@@ -377,39 +330,29 @@ void psb_irq_uninstall_islands(struct drm_device *dev, int hw_islands)
 
 	spin_lock_irqsave(&dev_priv->irqmask_lock, irqflags);
 
-	if (hw_islands & OSPM_DISPLAY_ISLAND) {
-		if (true/*powermgmt_is_hw_on(dev->pdev, PSB_DISPLAY_ISLAND)*/) {
-			PSB_WVDC32(0xFFFFFFFF, PSB_HWSTAM);
+	PSB_WVDC32(0xFFFFFFFF, PSB_HWSTAM);
 
-			if (dev->vblank_enabled[0])
-				psb_disable_pipestat(dev_priv, 0,
-				    PIPE_VBLANK_INTERRUPT_ENABLE);
+	if (dev->vblank_enabled[0])
+		psb_disable_pipestat(dev_priv, 0, PIPE_VBLANK_INTERRUPT_ENABLE);
 
-			if (dev->vblank_enabled[1])
-				psb_disable_pipestat(dev_priv, 1,
-				    PIPE_VBLANK_INTERRUPT_ENABLE);
+	if (dev->vblank_enabled[1])
+		psb_disable_pipestat(dev_priv, 1, PIPE_VBLANK_INTERRUPT_ENABLE);
 
-			if (dev->vblank_enabled[2])
-				psb_disable_pipestat(dev_priv, 2,
-				    PIPE_VBLANK_INTERRUPT_ENABLE);
-		}
-		dev_priv->vdc_irq_mask &= _PSB_IRQ_SGX_FLAG |
-					  _PSB_IRQ_MSVDX_FLAG |
-					  _LNC_IRQ_TOPAZ_FLAG;
-	}
-	/*TODO: remove following code*/
-	if (hw_islands & OSPM_GRAPHICS_ISLAND)
-		dev_priv->vdc_irq_mask &= ~_PSB_IRQ_SGX_FLAG;
+	if (dev->vblank_enabled[2])
+		psb_disable_pipestat(dev_priv, 2, PIPE_VBLANK_INTERRUPT_ENABLE);
+
+	dev_priv->vdc_irq_mask &= _PSB_IRQ_SGX_FLAG |
+				  _PSB_IRQ_MSVDX_FLAG |
+				  _LNC_IRQ_TOPAZ_FLAG;
 
-	/*These two registers are safe even if display island is off*/
+	/* These two registers are safe even if display island is off */
 	PSB_WVDC32(~dev_priv->vdc_irq_mask, PSB_INT_MASK_R);
 	PSB_WVDC32(dev_priv->vdc_irq_mask, PSB_INT_ENABLE_R);
 
 	wmb();
 
-	/*This register is safe even if display island is off*/
+	/* This register is safe even if display island is off */
 	PSB_WVDC32(PSB_RVDC32(PSB_INT_IDENTITY_R), PSB_INT_IDENTITY_R);
-
 	spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
 }
 
@@ -420,8 +363,7 @@ void psb_irq_turn_on_dpst(struct drm_device *dev)
 	u32 hist_reg;
 	u32 pwm_reg;
 
-	if (ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND,
-							OSPM_UHB_ONLY_IF_ON)) {
+	if (gma_power_begin(dev, false)) {
 		PSB_WVDC32(1 << 31, HISTOGRAM_LOGIC_CONTROL);
 		hist_reg = PSB_RVDC32(HISTOGRAM_LOGIC_CONTROL);
 		PSB_WVDC32(1 << 31, HISTOGRAM_INT_CONTROL);
@@ -443,7 +385,7 @@ void psb_irq_turn_on_dpst(struct drm_device *dev)
 		PSB_WVDC32(pwm_reg | 0x80010100 | PWM_PHASEIN_ENABLE,
 							PWM_CONTROL_LOGIC);
 
-		ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+		gma_power_end(dev);
 	}
 }
 
@@ -472,8 +414,7 @@ void psb_irq_turn_off_dpst(struct drm_device *dev)
 	u32 hist_reg;
 	u32 pwm_reg;
 
-	if (ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND,
-							OSPM_UHB_ONLY_IF_ON)) {
+	if (gma_power_begin(dev, false)) {
 		PSB_WVDC32(0x00000000, HISTOGRAM_INT_CONTROL);
 		hist_reg = PSB_RVDC32(HISTOGRAM_INT_CONTROL);
 
@@ -484,7 +425,7 @@ void psb_irq_turn_off_dpst(struct drm_device *dev)
 							PWM_CONTROL_LOGIC);
 		pwm_reg = PSB_RVDC32(PWM_CONTROL_LOGIC);
 
-		ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+		gma_power_end(dev);
 	}
 }
 
@@ -526,18 +467,16 @@ static int psb_vblank_do_wait(struct drm_device *dev,
  */
 int psb_enable_vblank(struct drm_device *dev, int pipe)
 {
-	struct drm_psb_private *dev_priv =
-	    (struct drm_psb_private *) dev->dev_private;
+	struct drm_psb_private *dev_priv = dev->dev_private;
 	unsigned long irqflags;
 	uint32_t reg_val = 0;
 	uint32_t pipeconf_reg = mid_pipeconf(pipe);
 
 	PSB_DEBUG_ENTRY("\n");
 
-	if (ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND,
-							OSPM_UHB_ONLY_IF_ON)) {
+	if (gma_power_begin(dev, false)) {
 		reg_val = REG_READ(pipeconf_reg);
-		ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+		gma_power_end(dev);
 	}
 
 	if (!(reg_val & PIPEACONF_ENABLE))
@@ -545,7 +484,6 @@ int psb_enable_vblank(struct drm_device *dev, int pipe)
 
 	spin_lock_irqsave(&dev_priv->irqmask_lock, irqflags);
 
-	drm_psb_disable_vsync = 0;
 	mid_enable_pipe_event(dev_priv, pipe);
 	psb_enable_pipestat(dev_priv, pipe, PIPE_VBLANK_INTERRUPT_ENABLE);
 
@@ -559,15 +497,13 @@ int psb_enable_vblank(struct drm_device *dev, int pipe)
  */
 void psb_disable_vblank(struct drm_device *dev, int pipe)
 {
-	struct drm_psb_private *dev_priv =
-	    (struct drm_psb_private *) dev->dev_private;
+	struct drm_psb_private *dev_priv = dev->dev_private;
 	unsigned long irqflags;
 
 	PSB_DEBUG_ENTRY("\n");
 
 	spin_lock_irqsave(&dev_priv->irqmask_lock, irqflags);
 
-	drm_psb_disable_vsync = 1;
 	mid_disable_pipe_event(dev_priv, pipe);
 	psb_disable_pipestat(dev_priv, pipe, PIPE_VBLANK_INTERRUPT_ENABLE);
 
@@ -603,7 +539,7 @@ u32 psb_get_vblank_counter(struct drm_device *dev, int pipe)
 		return 0;
 	}
 
-	if (!ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND, false))
+	if (!gma_power_begin(dev, false))
 		return 0;
 
 	reg_val = REG_READ(pipeconf_reg);
@@ -632,7 +568,7 @@ u32 psb_get_vblank_counter(struct drm_device *dev, int pipe)
 
 psb_get_vblank_counter_exit:
 
-	ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+	gma_power_end(dev);
 
 	return count;
 }
diff --git a/drivers/staging/gma500/psb_reset.c b/drivers/staging/gma500/psb_lid.c
index 21fd202f2931..21fd202f2931 100644
--- a/drivers/staging/gma500/psb_reset.c
+++ b/drivers/staging/gma500/psb_lid.c
diff --git a/drivers/staging/gma500/psb_mmu.c b/drivers/staging/gma500/psb_mmu.c
index edd0d4923e0f..c904d73b1de3 100644
--- a/drivers/staging/gma500/psb_mmu.c
+++ b/drivers/staging/gma500/psb_mmu.c
@@ -444,67 +444,6 @@ static inline void psb_mmu_invalidate_pte(struct psb_mmu_pt *pt,
 	pt->v[psb_mmu_pt_index(addr)] = pt->pd->invalid_pte;
 }
 
-#if 0
-static uint32_t psb_mmu_check_pte_locked(struct psb_mmu_pd *pd,
-					 uint32_t mmu_offset)
-{
-	uint32_t *v;
-	uint32_t pfn;
-
-	v = kmap_atomic(pd->p, KM_USER0);
-	if (!v) {
-		printk(KERN_INFO "Could not kmap pde page.\n");
-		return 0;
-	}
-	pfn = v[psb_mmu_pd_index(mmu_offset)];
-	/*      printk(KERN_INFO "pde is 0x%08x\n",pfn); */
-	kunmap_atomic(v, KM_USER0);
-	if (((pfn & 0x0F) != PSB_PTE_VALID)) {
-		printk(KERN_INFO "Strange pde at 0x%08x: 0x%08x.\n",
-		       mmu_offset, pfn);
-	}
-	v = ioremap(pfn & 0xFFFFF000, 4096);
-	if (!v) {
-		printk(KERN_INFO "Could not kmap pte page.\n");
-		return 0;
-	}
-	pfn = v[psb_mmu_pt_index(mmu_offset)];
-	/* printk(KERN_INFO "pte is 0x%08x\n",pfn); */
-	iounmap(v);
-	if (((pfn & 0x0F) != PSB_PTE_VALID)) {
-		printk(KERN_INFO "Strange pte at 0x%08x: 0x%08x.\n",
-		       mmu_offset, pfn);
-	}
-	return pfn >> PAGE_SHIFT;
-}
-
-static void psb_mmu_check_mirrored_gtt(struct psb_mmu_pd *pd,
-				       uint32_t mmu_offset,
-				       uint32_t gtt_pages)
-{
-	uint32_t start;
-	uint32_t next;
-
-	printk(KERN_INFO "Checking mirrored gtt 0x%08x %d\n",
-	       mmu_offset, gtt_pages);
-	down_read(&pd->driver->sem);
-	start = psb_mmu_check_pte_locked(pd, mmu_offset);
-	mmu_offset += PAGE_SIZE;
-	gtt_pages -= 1;
-	while (gtt_pages--) {
-		next = psb_mmu_check_pte_locked(pd, mmu_offset);
-		if (next != start + 1) {
-			printk(KERN_INFO
-			       "Ptes out of order: 0x%08x, 0x%08x.\n",
-			       start, next);
-		}
-		start = next;
-		mmu_offset += PAGE_SIZE;
-	}
-	up_read(&pd->driver->sem);
-}
-
-#endif
 
 void psb_mmu_mirror_gtt(struct psb_mmu_pd *pd,
 			uint32_t mmu_offset, uint32_t gtt_start,
diff --git a/drivers/staging/gma500/psb_powermgmt.c b/drivers/staging/gma500/psb_powermgmt.c
index 7deb1ba82545..1495415be6c7 100644
--- a/drivers/staging/gma500/psb_powermgmt.c
+++ b/drivers/staging/gma500/psb_powermgmt.c
@@ -24,83 +24,73 @@
  * Authors:
  *    Benjamin Defnet <benjamin.r.defnet@intel.com>
  *    Rajesh Poornachandran <rajesh.poornachandran@intel.com>
- *
+ * Massively reworked
+ *    Alan Cox <alan@linux.intel.com>
  */
 #include "psb_powermgmt.h"
 #include "psb_drv.h"
+#include "psb_reg.h"
 #include "psb_intel_reg.h"
 #include <linux/mutex.h>
 #include <linux/pm_runtime.h>
 
-#undef OSPM_GFX_DPK
-
-extern u32 gui32SGXDeviceID;
-extern u32 gui32MRSTDisplayDeviceID;
-extern u32 gui32MRSTMSVDXDeviceID;
-extern u32 gui32MRSTTOPAZDeviceID;
-
-struct drm_device *gpDrmDevice = NULL;
 static struct mutex power_mutex;
-static bool gbSuspendInProgress = false;
-static bool gbResumeInProgress = false;
-static int g_hw_power_status_mask;
-static atomic_t g_display_access_count;
-static atomic_t g_graphics_access_count;
-static atomic_t g_videoenc_access_count;
-static atomic_t g_videodec_access_count;
-int allow_runtime_pm = 0;
-
-void ospm_power_island_up(int hw_islands);
-void ospm_power_island_down(int hw_islands);
-static bool gbSuspended = false;
-bool gbgfxsuspended = false;
 
-/*
- * ospm_power_init
+/**
+ *	gma_power_init		-	initialise power manager
+ *	@dev: our device
  *
- * Description: Initialize this ospm power management module
+ *	Set up for power management tracking of our hardware.
  */
-void ospm_power_init(struct drm_device *dev)
+void gma_power_init(struct drm_device *dev)
 {
-	struct drm_psb_private *dev_priv = (struct drm_psb_private *)dev->dev_private;
-
-	gpDrmDevice = dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
 
 	dev_priv->apm_base = dev_priv->apm_reg & 0xffff;
 	dev_priv->ospm_base &= 0xffff;
 
+	dev_priv->display_power = true;	/* We start active */
+	dev_priv->display_count = 0;	/* Currently no users */
+	dev_priv->suspended = false;	/* And not suspended */
 	mutex_init(&power_mutex);
-	g_hw_power_status_mask = OSPM_ALL_ISLANDS;
-	atomic_set(&g_display_access_count, 0);
-	atomic_set(&g_graphics_access_count, 0);
-	atomic_set(&g_videoenc_access_count, 0);
-	atomic_set(&g_videodec_access_count, 0);
+
+	if (!IS_MRST(dev)) {
+		/* FIXME: wants further review */
+		u32 gating = PSB_RSGX32(PSB_CR_CLKGATECTL);
+		/* Disable 2D clock gating */
+		gating &= ~3;
+		gating |= 1;
+		PSB_WSGX32(gating, PSB_CR_CLKGATECTL);
+		PSB_RSGX32(PSB_CR_CLKGATECTL);
+	}
 }
 
-/*
- * ospm_power_uninit
+/**
+ *	gma_power_uninit	-	end power manager
+ *	@dev: device to end for
  *
- * Description: Uninitialize this ospm power management module
+ *	Undo the effects of gma_power_init
  */
-void ospm_power_uninit(void)
+void gma_power_uninit(struct drm_device *dev)
 {
 	mutex_destroy(&power_mutex);
-    	pm_runtime_disable(&gpDrmDevice->pdev->dev);
-	pm_runtime_set_suspended(&gpDrmDevice->pdev->dev);
+	pm_runtime_disable(&dev->pdev->dev);
+	pm_runtime_set_suspended(&dev->pdev->dev);
 }
 
 
-/*
- * save_display_registers
+/**
+ *	save_display_registers	-	save registers lost on suspend
+ *	@dev: our DRM device
  *
- * Description: We are going to suspend so save current display
- * register state.
+ *	Save the state we need in order to be able to restore the interface
+ *	upon resume from suspend
  */
 static int save_display_registers(struct drm_device *dev)
 {
 	struct drm_psb_private *dev_priv = dev->dev_private;
-	struct drm_crtc * crtc;
-	struct drm_connector * connector;
+	struct drm_crtc *crtc;
+	struct drm_connector *connector;
 
 	/* Display arbitration control + watermarks */
 	dev_priv->saveDSPARB = PSB_RVDC32(DSPARB);
@@ -112,37 +102,31 @@ static int save_display_registers(struct drm_device *dev)
 	dev_priv->saveDSPFW6 = PSB_RVDC32(DSPFW6);
 	dev_priv->saveCHICKENBIT = PSB_RVDC32(DSPCHICKENBIT);
 
-	/*save crtc and output state*/
+	/* Save crtc and output state */
 	mutex_lock(&dev->mode_config.mutex);
 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
-		if(drm_helper_crtc_in_use(crtc)) {
+		if (drm_helper_crtc_in_use(crtc))
 			crtc->funcs->save(crtc);
-		}
 	}
 
-	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+	list_for_each_entry(connector, &dev->mode_config.connector_list, head)
 		connector->funcs->save(connector);
-	}
-	mutex_unlock(&dev->mode_config.mutex);
-
-	/* Interrupt state */
-	/*
-	 * Handled in psb_irq.c
-	 */
 
+	mutex_unlock(&dev->mode_config.mutex);
 	return 0;
 }
 
-/*
- * restore_display_registers
+/**
+ *	restore_display_registers	-	restore lost register state
+ *	@dev: our DRM device
  *
- * Description: We are going to resume so restore display register state.
+ *	Restore register state that was lost during suspend and resume.
  */
 static int restore_display_registers(struct drm_device *dev)
 {
 	struct drm_psb_private *dev_priv = dev->dev_private;
-	struct drm_crtc * crtc;
-	struct drm_connector * connector;
+	struct drm_crtc *crtc;
+	struct drm_connector *connector;
 
 	/* Display arbitration + watermarks */
 	PSB_WVDC32(dev_priv->saveDSPARB, DSPARB);
@@ -158,39 +142,57 @@ static int restore_display_registers(struct drm_device *dev)
 	PSB_WVDC32(0x80000000, VGACNTRL);
 
 	mutex_lock(&dev->mode_config.mutex);
-	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
-		if(drm_helper_crtc_in_use(crtc))
+	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
+		if (drm_helper_crtc_in_use(crtc))
 			crtc->funcs->restore(crtc);
-	}
-	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
-		connector->funcs->restore(connector);
-	}
-	mutex_unlock(&dev->mode_config.mutex);
 
-	/*Interrupt state*/
-	/*
-	 * Handled in psb_irq.c
-	 */
+	list_for_each_entry(connector, &dev->mode_config.connector_list, head)
+		connector->funcs->restore(connector);
 
+	mutex_unlock(&dev->mode_config.mutex);
 	return 0;
 }
-/*
- * powermgmt_suspend_display
+
+/**
+ *	power_down	-	power down the display island
+ *	@dev: our DRM device
  *
- * Description: Suspend the display hardware saving state and disabling
- * as necessary.
+ *	Power down the display interface of our device
  */
-void ospm_suspend_display(struct drm_device *dev)
+static void power_down(struct drm_device *dev)
 {
 	struct drm_psb_private *dev_priv = dev->dev_private;
-	int pp_stat, ret=0;
+	u32 pwr_mask ;
+	u32 pwr_sts;
 
-	printk(KERN_ALERT "%s \n", __func__);
+	if (IS_MRST(dev)) {
+		pwr_mask = PSB_PWRGT_DISPLAY_MASK;
+		outl(pwr_mask, dev_priv->ospm_base + PSB_PM_SSC);
 
-#ifdef OSPM_GFX_DPK
-	printk(KERN_ALERT "%s \n", __func__);
-#endif
-	if (!(g_hw_power_status_mask & OSPM_DISPLAY_ISLAND))
+		while (true) {
+			pwr_sts = inl(dev_priv->ospm_base + PSB_PM_SSS);
+			if ((pwr_sts & pwr_mask) == pwr_mask)
+				break;
+			else
+				udelay(10);
+		}
+		dev_priv->display_power = false;
+	}
+}
+
+
+/**
+ *	gma_suspend_display	-	suspend the display logic
+ *	@dev: our DRM device
+ *
+ *	Suspend the display logic of the graphics interface
+ */
+static void gma_suspend_display(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	int pp_stat;
+
+	if (dev_priv->suspended)
 		return;
 
 	save_display_registers(dev);
@@ -225,37 +227,58 @@ void ospm_suspend_display(struct drm_device *dev)
 			!= DPI_FIFO_EMPTY);
 		PSB_WVDC32(0, DEVICE_READY_REG);
 			/* turn off panel power */
-		ret = 0;
 	}
-	ospm_power_island_down(OSPM_DISPLAY_ISLAND);
+	power_down(dev);
 }
 
 /*
- * ospm_resume_display
+ * power_up
  *
- * Description: Resume the display hardware restoring state and enabling
- * as necessary.
+ * Description: Restore power to the specified island(s) (powergating)
  */
-void ospm_resume_display(struct pci_dev *pdev)
+static void power_up(struct drm_device *dev)
 {
-	struct drm_device *dev = pci_get_drvdata(pdev);
 	struct drm_psb_private *dev_priv = dev->dev_private;
-	struct psb_gtt *pg = dev_priv->pg;
+	u32 pwr_mask = PSB_PWRGT_DISPLAY_MASK;
+	u32 pwr_sts, pwr_cnt;
 
-	printk(KERN_ALERT "%s \n", __func__);
+	if (IS_MRST(dev)) {
+		pwr_cnt = inl(dev_priv->ospm_base + PSB_PM_SSC);
+		pwr_cnt &= ~pwr_mask;
+		outl(pwr_cnt, (dev_priv->ospm_base + PSB_PM_SSC));
 
-#ifdef OSPM_GFX_DPK
-	printk(KERN_ALERT "%s \n", __func__);
-#endif
-	if (g_hw_power_status_mask & OSPM_DISPLAY_ISLAND)
+		while (true) {
+			pwr_sts = inl(dev_priv->ospm_base + PSB_PM_SSS);
+			if ((pwr_sts & pwr_mask) == 0)
+				break;
+			else
+				udelay(10);
+		}
+	}
+	dev_priv->suspended = false;
+	dev_priv->display_power = true;
+}
+
+/**
+ *	gma_resume_display	-	resume display side logic
+ *
+ *	Resume the display hardware restoring state and enabling
+ *	as necessary.
+ */
+static void gma_resume_display(struct pci_dev *pdev)
+{
+	struct drm_device *dev = pci_get_drvdata(pdev);
+	struct drm_psb_private *dev_priv = dev->dev_private;
+
+	if (dev_priv->suspended == false)
 		return;
 
 	/* turn on the display power island */
-	ospm_power_island_up(OSPM_DISPLAY_ISLAND);
+	power_up(dev);
 
-	PSB_WVDC32(pg->pge_ctl | _PSB_PGETBL_ENABLED, PSB_PGETBL_CTL);
+	PSB_WVDC32(dev_priv->pge_ctl | _PSB_PGETBL_ENABLED, PSB_PGETBL_CTL);
 	pci_write_config_word(pdev, PSB_GMCH_CTRL,
-			pg->gmch_ctrl | _PSB_GMCH_ENABLED);
+			dev_priv->gmch_ctrl | _PSB_GMCH_ENABLED);
 
 	/* Don't reinitialize the GTT as it is unnecessary.  The gtt is
 	 * stored in memory so it will automatically be restored.  All
@@ -267,26 +290,21 @@ void ospm_resume_display(struct pci_dev *pdev)
 	restore_display_registers(dev);
 }
 
-#if 1
-/*
- * ospm_suspend_pci
+/**
+ *	gma_suspend_pci		-	suspend PCI side
+ *	@pdev: PCI device
  *
- * Description: Suspend the pci device saving state and disabling
- * as necessary.
+ *	Perform the suspend processing on our PCI device state
  */
-static void ospm_suspend_pci(struct pci_dev *pdev)
+static void gma_suspend_pci(struct pci_dev *pdev)
 {
 	struct drm_device *dev = pci_get_drvdata(pdev);
 	struct drm_psb_private *dev_priv = dev->dev_private;
 	int bsm, vbt;
 
-	if (gbSuspended)
+	if (dev_priv->suspended)
 		return;
 
-#ifdef OSPM_GFX_DPK
-	printk(KERN_ALERT "ospm_suspend_pci\n");
-#endif
-
 	pci_save_state(pdev);
 	pci_read_config_dword(pdev, 0x5C, &bsm);
 	dev_priv->saveBSM = bsm;
@@ -298,29 +316,25 @@ static void ospm_suspend_pci(struct pci_dev *pdev)
 	pci_disable_device(pdev);
 	pci_set_power_state(pdev, PCI_D3hot);
 
-	gbSuspended = true;
-	gbgfxsuspended = true;
+	dev_priv->suspended = true;
 }
 
-/*
- * ospm_resume_pci
+/**
+ *	gma_resume_pci		-	resume helper
+ *	@dev: our PCI device
  *
- * Description: Resume the pci device restoring state and enabling
- * as necessary.
+ *	Perform the resume processing on our PCI device state - rewrite
+ *	register state and re-enable the PCI device
  */
-static bool ospm_resume_pci(struct pci_dev *pdev)
+static bool gma_resume_pci(struct pci_dev *pdev)
 {
 	struct drm_device *dev = pci_get_drvdata(pdev);
 	struct drm_psb_private *dev_priv = dev->dev_private;
-	int ret = 0;
+	int ret;
 
-	if (!gbSuspended)
+	if (!dev_priv->suspended)
 		return true;
 
-#ifdef OSPM_GFX_DPK
-	printk(KERN_ALERT "ospm_resume_pci\n");
-#endif
-
 	pci_set_power_state(pdev, PCI_D0);
 	pci_restore_state(pdev);
 	pci_write_config_dword(pdev, 0x5c, dev_priv->saveBSM);
@@ -331,448 +345,131 @@ static bool ospm_resume_pci(struct pci_dev *pdev)
 	ret = pci_enable_device(pdev);
 
 	if (ret != 0)
-		printk(KERN_ALERT "ospm_resume_pci: pci_enable_device failed: %d\n", ret);
+		dev_err(&pdev->dev, "pci_enable failed: %d\n", ret);
 	else
-		gbSuspended = false;
-
-	return !gbSuspended;
-}
-#endif
-/*
- * ospm_power_suspend
- *
- * Description: OSPM is telling our driver to suspend so save state
- * and power down all hardware.
- */
-int ospm_power_suspend(struct pci_dev *pdev, pm_message_t state)
-{
-        int ret = 0;
-        int graphics_access_count;
-        int videoenc_access_count;
-        int videodec_access_count;
-        int display_access_count;
-    	bool suspend_pci = true;
-
-	if(gbSuspendInProgress || gbResumeInProgress)
-        {
-#ifdef OSPM_GFX_DPK
-                printk(KERN_ALERT "OSPM_GFX_DPK: %s system BUSY \n", __func__);
-#endif
-                return  -EBUSY;
-        }
-
-        mutex_lock(&power_mutex);
-
-        if (!gbSuspended) {
-                graphics_access_count = atomic_read(&g_graphics_access_count);
-                videoenc_access_count = atomic_read(&g_videoenc_access_count);
-                videodec_access_count = atomic_read(&g_videodec_access_count);
-                display_access_count = atomic_read(&g_display_access_count);
-
-                if (graphics_access_count ||
-			videoenc_access_count ||
-			videodec_access_count ||
-			display_access_count)
-                        ret = -EBUSY;
-
-                if (!ret) {
-                        gbSuspendInProgress = true;
-
-                        psb_irq_uninstall_islands(gpDrmDevice, OSPM_DISPLAY_ISLAND);
-                        ospm_suspend_display(gpDrmDevice);
-                        if (suspend_pci == true) {
-				ospm_suspend_pci(pdev);
-                        }
-                        gbSuspendInProgress = false;
-                } else {
-                        printk(KERN_ALERT "ospm_power_suspend: device busy: graphics %d videoenc %d videodec %d display %d\n", graphics_access_count, videoenc_access_count, videodec_access_count, display_access_count);
-                }
-        }
-
-
-        mutex_unlock(&power_mutex);
-        return ret;
+		dev_priv->suspended = false;
+	return !dev_priv->suspended;
 }
 
-/*
- * ospm_power_island_up
+/**
+ *	gma_power_suspend		-	bus callback for suspend
+ *	@pdev: our PCI device
+ *	@state: suspend type
  *
- * Description: Restore power to the specified island(s) (powergating)
+ *	Called back by the PCI layer during a suspend of the system. We
+ *	perform the necessary shut down steps and save enough state that
+ *	we can undo this when resume is called.
  */
-void ospm_power_island_up(int hw_islands)
+int gma_power_suspend(struct pci_dev *pdev, pm_message_t state)
 {
-	u32 pwr_cnt = 0;
-	u32 pwr_sts = 0;
-	u32 pwr_mask = 0;
-
-	struct drm_psb_private *dev_priv =
-		(struct drm_psb_private *) gpDrmDevice->dev_private;
-
-
-	if (hw_islands & OSPM_DISPLAY_ISLAND) {
-		pwr_mask = PSB_PWRGT_DISPLAY_MASK;
-
-		pwr_cnt = inl(dev_priv->ospm_base + PSB_PM_SSC);
-		pwr_cnt &= ~pwr_mask;
-		outl(pwr_cnt, (dev_priv->ospm_base + PSB_PM_SSC));
+	struct drm_device *dev = pci_get_drvdata(pdev);
+	struct drm_psb_private *dev_priv = dev->dev_private;
 
-		while (true) {
-			pwr_sts = inl(dev_priv->ospm_base + PSB_PM_SSS);
-			if ((pwr_sts & pwr_mask) == 0)
-				break;
-			else
-				udelay(10);
+	mutex_lock(&power_mutex);
+	if (!dev_priv->suspended) {
+		if (dev_priv->display_count) {
+			mutex_unlock(&power_mutex);
+			return -EBUSY;
 		}
+		psb_irq_uninstall(dev);
+		gma_suspend_display(dev);
+		gma_suspend_pci(pdev);
 	}
-
-	g_hw_power_status_mask |= hw_islands;
-}
-
-/*
- * ospm_power_resume
- */
-int ospm_power_resume(struct pci_dev *pdev)
-{
-	if(gbSuspendInProgress || gbResumeInProgress)
-        {
-#ifdef OSPM_GFX_DPK
-                printk(KERN_ALERT "OSPM_GFX_DPK: %s hw_island: Suspend || gbResumeInProgress!!!! \n", __func__);
-#endif
-                return 0;
-        }
-
-        mutex_lock(&power_mutex);
-
-#ifdef OSPM_GFX_DPK
-	printk(KERN_ALERT "OSPM_GFX_DPK: ospm_power_resume \n");
-#endif
-
-  	gbResumeInProgress = true;
-
-        ospm_resume_pci(pdev);
-
-	ospm_resume_display(gpDrmDevice->pdev);
-        psb_irq_preinstall_islands(gpDrmDevice, OSPM_DISPLAY_ISLAND);
-        psb_irq_postinstall_islands(gpDrmDevice, OSPM_DISPLAY_ISLAND);
-
-	gbResumeInProgress = false;
-
-        mutex_unlock(&power_mutex);
-
+	mutex_unlock(&power_mutex);
 	return 0;
 }
 
 
-/*
- * ospm_power_island_down
+/**
+ *	gma_power_resume		-	resume power
+ *	@pdev: PCI device
  *
- * Description: Cut power to the specified island(s) (powergating)
+ *	Resume the PCI side of the graphics and then the displays
  */
-void ospm_power_island_down(int islands)
+int gma_power_resume(struct pci_dev *pdev)
 {
-#if 0
-	u32 pwr_cnt = 0;
-	u32 pwr_mask = 0;
-	u32 pwr_sts = 0;
-
-	struct drm_psb_private *dev_priv =
-		(struct drm_psb_private *) gpDrmDevice->dev_private;
-
-	g_hw_power_status_mask &= ~islands;
-
-	if (islands & OSPM_GRAPHICS_ISLAND) {
-		pwr_cnt |= PSB_PWRGT_GFX_MASK;
-		pwr_mask |= PSB_PWRGT_GFX_MASK;
-		if (dev_priv->graphics_state == PSB_PWR_STATE_ON) {
-			dev_priv->gfx_on_time += (jiffies - dev_priv->gfx_last_mode_change) * 1000 / HZ;
-			dev_priv->gfx_last_mode_change = jiffies;
-			dev_priv->graphics_state = PSB_PWR_STATE_OFF;
-			dev_priv->gfx_off_cnt++;
-		}
-	}
-	if (islands & OSPM_VIDEO_ENC_ISLAND) {
-		pwr_cnt |= PSB_PWRGT_VID_ENC_MASK;
-		pwr_mask |= PSB_PWRGT_VID_ENC_MASK;
-	}
-	if (islands & OSPM_VIDEO_DEC_ISLAND) {
-		pwr_cnt |= PSB_PWRGT_VID_DEC_MASK;
-		pwr_mask |= PSB_PWRGT_VID_DEC_MASK;
-	}
-	if (pwr_cnt) {
-		pwr_cnt |= inl(dev_priv->apm_base);
-		outl(pwr_cnt, dev_priv->apm_base  + PSB_APM_CMD);
-		while (true) {
-			pwr_sts = inl(dev_priv->apm_base + PSB_APM_STS);
-
-			if ((pwr_sts & pwr_mask) == pwr_mask)
-				break;
-			else
-				udelay(10);
-		}
-	}
-
-	if (islands & OSPM_DISPLAY_ISLAND) {
-		pwr_mask = PSB_PWRGT_DISPLAY_MASK;
-
-		outl(pwr_mask, (dev_priv->ospm_base + PSB_PM_SSC));
+	struct drm_device *dev = pci_get_drvdata(pdev);
 
-		while (true) {
-			pwr_sts = inl(dev_priv->ospm_base + PSB_PM_SSS);
-			if ((pwr_sts & pwr_mask) == pwr_mask)
-				break;
-			else
-				udelay(10);
-		}
-	}
-#endif
+	mutex_lock(&power_mutex);
+	gma_resume_pci(pdev);
+	gma_resume_display(pdev);
+	psb_irq_preinstall(dev);
+	psb_irq_postinstall(dev);
+	mutex_unlock(&power_mutex);
+	return 0;
 }
 
 
-/*
- * ospm_power_is_hw_on
+
+/**
+ *	gma_power_is_on		-	returne true if power is on
+ *	@dev: our DRM device
  *
- * Description: do an instantaneous check for if the specified islands
- * are on.  Only use this in cases where you know the g_state_change_mutex
- * is already held such as in irq install/uninstall.  Otherwise, use
- * ospm_power_using_hw_begin().
+ *	Returns true if the display island power is on at this moment
  */
-bool ospm_power_is_hw_on(int hw_islands)
+bool gma_power_is_on(struct drm_device *dev)
 {
-	return ((g_hw_power_status_mask & hw_islands) == hw_islands) ? true:false;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	return dev_priv->display_power;
 }
 
-/*
- * ospm_power_using_hw_begin
+
+/**
+ *	gma_power_begin		-	begin requiring power
+ *	@dev: our DRM device
+ *	@force_on: true to force power on
  *
- * Description: Notify PowerMgmt module that you will be accessing the
- * specified island's hw so don't power it off.  If force_on is true,
- * this will power on the specified island if it is off.
- * Otherwise, this will return false and the caller is expected to not
- * access the hw.
+ *	Begin an action that requires the display power island is enabled.
+ *	We refcount the islands.
  *
- * NOTE *** If this is called from and interrupt handler or other atomic
- * context, then it will return false if we are in the middle of a
- * power state transition and the caller will be expected to handle that
- * even if force_on is set to true.
+ *	FIXME: locking
  */
-bool ospm_power_using_hw_begin(int hw_island, UHBUsage usage)
+bool gma_power_begin(struct drm_device *dev, bool force_on)
 {
-        return 1;	/*FIXMEAC */
-#if 0
-	bool ret = true;
-	bool island_is_off = false;
-	bool b_atomic = (in_interrupt() || in_atomic());
-	bool locked = true;
-	struct pci_dev *pdev = gpDrmDevice->pdev;
-	u32 deviceID = 0;
-	bool force_on = usage ? true: false;
-	/*quick path, not 100% race safe, but should be enough comapre to current other code in this file */
-	if (!force_on) {
-		if (hw_island & (OSPM_ALL_ISLANDS & ~g_hw_power_status_mask))
-			return false;
-		else {
-			locked = false;
-#ifdef CONFIG_PM_RUNTIME
-			/* increment pm_runtime_refcount */
-			pm_runtime_get(&pdev->dev);
-#endif
-			goto increase_count;
-		}
-	}
-
-
-	if (!b_atomic)
-		mutex_lock(&power_mutex);
-
-	island_is_off = hw_island & (OSPM_ALL_ISLANDS & ~g_hw_power_status_mask);
-
-	if (b_atomic && (gbSuspendInProgress || gbResumeInProgress || gbSuspended) && force_on && island_is_off)
-		ret = false;
-
-	if (ret && island_is_off && !force_on)
-		ret = false;
-
-	if (ret && island_is_off && force_on) {
-		gbResumeInProgress = true;
-
-		ret = ospm_resume_pci(pdev);
-
-		if (ret) {
-			switch(hw_island)
-			{
-			case OSPM_DISPLAY_ISLAND:
-				deviceID = gui32MRSTDisplayDeviceID;
-				ospm_resume_display(pdev);
-				psb_irq_preinstall_islands(gpDrmDevice, OSPM_DISPLAY_ISLAND);
-				psb_irq_postinstall_islands(gpDrmDevice, OSPM_DISPLAY_ISLAND);
-				break;
-			case OSPM_GRAPHICS_ISLAND:
-				deviceID = gui32SGXDeviceID;
-				ospm_power_island_up(OSPM_GRAPHICS_ISLAND);
-				psb_irq_preinstall_islands(gpDrmDevice, OSPM_GRAPHICS_ISLAND);
-				psb_irq_postinstall_islands(gpDrmDevice, OSPM_GRAPHICS_ISLAND);
-				break;
-#if 1
-			case OSPM_VIDEO_DEC_ISLAND:
-				if(!ospm_power_is_hw_on(OSPM_DISPLAY_ISLAND)) {
-					//printk(KERN_ALERT "%s power on display for video decode use\n", __func__);
-					deviceID = gui32MRSTDisplayDeviceID;
-					ospm_resume_display(pdev);
-					psb_irq_preinstall_islands(gpDrmDevice, OSPM_DISPLAY_ISLAND);
-					psb_irq_postinstall_islands(gpDrmDevice, OSPM_DISPLAY_ISLAND);
-				}
-				else{
-					//printk(KERN_ALERT "%s display is already on for video decode use\n", __func__);
-				}
-
-				if(!ospm_power_is_hw_on(OSPM_VIDEO_DEC_ISLAND)) {
-					//printk(KERN_ALERT "%s power on video decode\n", __func__);
-					deviceID = gui32MRSTMSVDXDeviceID;
-					ospm_power_island_up(OSPM_VIDEO_DEC_ISLAND);
-					psb_irq_preinstall_islands(gpDrmDevice, OSPM_VIDEO_DEC_ISLAND);
-					psb_irq_postinstall_islands(gpDrmDevice, OSPM_VIDEO_DEC_ISLAND);
-				}
-				else{
-					//printk(KERN_ALERT "%s video decode is already on\n", __func__);
-				}
-
-				break;
-			case OSPM_VIDEO_ENC_ISLAND:
-				if(!ospm_power_is_hw_on(OSPM_DISPLAY_ISLAND)) {
-					//printk(KERN_ALERT "%s power on display for video encode\n", __func__);
-					deviceID = gui32MRSTDisplayDeviceID;
-					ospm_resume_display(pdev);
-					psb_irq_preinstall_islands(gpDrmDevice, OSPM_DISPLAY_ISLAND);
-					psb_irq_postinstall_islands(gpDrmDevice, OSPM_DISPLAY_ISLAND);
-				}
-				else{
-					//printk(KERN_ALERT "%s display is already on for video encode use\n", __func__);
-				}
-
-				if(!ospm_power_is_hw_on(OSPM_VIDEO_ENC_ISLAND)) {
-					//printk(KERN_ALERT "%s power on video encode\n", __func__);
-					deviceID = gui32MRSTTOPAZDeviceID;
-					ospm_power_island_up(OSPM_VIDEO_ENC_ISLAND);
-					psb_irq_preinstall_islands(gpDrmDevice, OSPM_VIDEO_ENC_ISLAND);
-					psb_irq_postinstall_islands(gpDrmDevice, OSPM_VIDEO_ENC_ISLAND);
-				}
-				else{
-					//printk(KERN_ALERT "%s video decode is already on\n", __func__);
-				}
-#endif
-				break;
-
-			default:
-				printk(KERN_ALERT "%s unknown island !!!! \n", __func__);
-				break;
-			}
-
-		}
-
-		if (!ret)
-			printk(KERN_ALERT "ospm_power_using_hw_begin: forcing on %d failed\n", hw_island);
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	int ret;
 
-		gbResumeInProgress = false;
+	/* Power already on ? */
+	if (dev_priv->display_power) {
+		dev_priv->display_count++;
+		pm_runtime_get(&dev->pdev->dev);
+		return true;
 	}
-increase_count:
-	if (ret) {
-		switch(hw_island)
-		{
-		case OSPM_GRAPHICS_ISLAND:
-			atomic_inc(&g_graphics_access_count);
-			break;
-		case OSPM_VIDEO_ENC_ISLAND:
-			atomic_inc(&g_videoenc_access_count);
-			break;
-		case OSPM_VIDEO_DEC_ISLAND:
-			atomic_inc(&g_videodec_access_count);
-			break;
-		case OSPM_DISPLAY_ISLAND:
-			atomic_inc(&g_display_access_count);
-			break;
-		}
+	if (force_on == false)
+		return false;
+
+	/* Ok power up needed */
+	ret = gma_resume_pci(dev->pdev);
+	if (ret == 0) {
+		psb_irq_preinstall(dev);
+		psb_irq_postinstall(dev);
+		pm_runtime_get(&dev->pdev->dev);
+		dev_priv->display_count++;
+		return true;
 	}
-
-	if (!b_atomic && locked)
-		mutex_unlock(&power_mutex);
-
-	return ret;
-#endif
+	return false;
 }
 
 
-/*
- * ospm_power_using_hw_end
+/**
+ *	gma_power_end		-	end use of power
+ *	@dev: Our DRM device
  *
- * Description: Notify PowerMgmt module that you are done accessing the
- * specified island's hw so feel free to power it off.  Note that this
- * function doesn't actually power off the islands.
+ *	Indicate that one of our gma_power_begin() requested periods when
+ *	the diplay island power is needed has completed.
  */
-void ospm_power_using_hw_end(int hw_island)
-{
-#if 0 /* FIXMEAC */
-	switch(hw_island)
-	{
-	case OSPM_GRAPHICS_ISLAND:
-		atomic_dec(&g_graphics_access_count);
-		break;
-	case OSPM_VIDEO_ENC_ISLAND:
-		atomic_dec(&g_videoenc_access_count);
-		break;
-	case OSPM_VIDEO_DEC_ISLAND:
-		atomic_dec(&g_videodec_access_count);
-		break;
-	case OSPM_DISPLAY_ISLAND:
-		atomic_dec(&g_display_access_count);
-		break;
-	}
-
-	//decrement runtime pm ref count
-	pm_runtime_put(&gpDrmDevice->pdev->dev);
-
-	WARN_ON(atomic_read(&g_graphics_access_count) < 0);
-	WARN_ON(atomic_read(&g_videoenc_access_count) < 0);
-	WARN_ON(atomic_read(&g_videodec_access_count) < 0);
-	WARN_ON(atomic_read(&g_display_access_count) < 0);
-#endif
-}
-
-int ospm_runtime_pm_allow(struct drm_device * dev)
+void gma_power_end(struct drm_device *dev)
 {
-	return 0;
-}
-
-void ospm_runtime_pm_forbid(struct drm_device * dev)
-{
-	struct drm_psb_private * dev_priv = dev->dev_private;
-
-	DRM_INFO("%s\n", __FUNCTION__);
-
-	pm_runtime_forbid(&dev->pdev->dev);
-	dev_priv->rpm_enabled = 0;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	dev_priv->display_count--;
+	WARN_ON(dev_priv->display_count < 0);
+	pm_runtime_put(&dev->pdev->dev);
 }
 
 int psb_runtime_suspend(struct device *dev)
 {
-	pm_message_t state;
-	int ret = 0;
-	state.event = 0;
-
-#ifdef OSPM_GFX_DPK
-	printk(KERN_ALERT "OSPM_GFX_DPK: %s \n", __func__);
-#endif
-        if (atomic_read(&g_graphics_access_count) || atomic_read(&g_videoenc_access_count)
-		|| atomic_read(&g_videodec_access_count) || atomic_read(&g_display_access_count)){
-#ifdef OSPM_GFX_DPK
-                printk(KERN_ALERT "OSPM_GFX_DPK: GFX: %d VEC: %d VED: %d DC: %d DSR: %d \n", atomic_read(&g_graphics_access_count),
-			atomic_read(&g_videoenc_access_count), atomic_read(&g_videodec_access_count), atomic_read(&g_display_access_count));
-#endif
-                return -EBUSY;
-        }
-        else
-		ret = ospm_power_suspend(gpDrmDevice->pdev, state);
-
-	return ret;
+	static pm_message_t dummy;
+	return gma_power_suspend(to_pci_dev(dev), dummy);
 }
 
 int psb_runtime_resume(struct device *dev)
@@ -782,11 +479,11 @@ int psb_runtime_resume(struct device *dev)
 
 int psb_runtime_idle(struct device *dev)
 {
-	/*printk (KERN_ALERT "lvds:%d,mipi:%d\n", dev_priv->is_lvds_on, dev_priv->is_mipi_on);*/
-	if (atomic_read(&g_graphics_access_count) || atomic_read(&g_videoenc_access_count)
-		|| atomic_read(&g_videodec_access_count) || atomic_read(&g_display_access_count))
-		return 1;
-	else
+	struct drm_device *drmdev = pci_get_drvdata(to_pci_dev(dev));
+	struct drm_psb_private *dev_priv = drmdev->dev_private;
+	if (dev_priv->display_count)
 		return 0;
+	else
+		return 1;
 }
 
diff --git a/drivers/staging/gma500/psb_powermgmt.h b/drivers/staging/gma500/psb_powermgmt.h
index bf6f27af03a8..e005229af798 100644
--- a/drivers/staging/gma500/psb_powermgmt.h
+++ b/drivers/staging/gma500/psb_powermgmt.h
@@ -24,7 +24,8 @@
  * Authors:
  *    Benjamin Defnet <benjamin.r.defnet@intel.com>
  *    Rajesh Poornachandran <rajesh.poornachandran@intel.com>
- *
+ * Massively reworked
+ *    Alan Cox <alan@linux.intel.com>
  */
 #ifndef _PSB_POWERMGMT_H_
 #define _PSB_POWERMGMT_H_
@@ -32,65 +33,35 @@
 #include <linux/pci.h>
 #include <drm/drmP.h>
 
-#define OSPM_GRAPHICS_ISLAND	0x1
-#define OSPM_VIDEO_ENC_ISLAND	0x2
-#define OSPM_VIDEO_DEC_ISLAND	0x4
-#define OSPM_DISPLAY_ISLAND	0x8
-#define OSPM_GL3_CACHE_ISLAND	0x10
-#define OSPM_ALL_ISLANDS	0x1f
-
-/* IPC message and command defines used to enable/disable mipi panel voltages */
-#define IPC_MSG_PANEL_ON_OFF    0xE9
-#define IPC_CMD_PANEL_ON        1
-#define IPC_CMD_PANEL_OFF       0
-
-typedef enum _UHBUsage
-{
-    OSPM_UHB_ONLY_IF_ON = 0,
-    OSPM_UHB_FORCE_POWER_ON,
-} UHBUsage;
-
-/* Use these functions to power down video HW for D0i3 purpose  */
-
-void ospm_power_init(struct drm_device *dev);
-void ospm_power_uninit(void);
-
+void gma_power_init(struct drm_device *dev);
+void gma_power_uninit(struct drm_device *dev);
 
 /*
- * OSPM will call these functions
+ * The kernel bus power management  will call these functions
  */
-int ospm_power_suspend(struct pci_dev *pdev, pm_message_t state);
-int ospm_power_resume(struct pci_dev *pdev);
+int gma_power_suspend(struct pci_dev *pdev, pm_message_t state);
+int gma_power_resume(struct pci_dev *pdev);
 
 /*
  * These are the functions the driver should use to wrap all hw access
  * (i.e. register reads and writes)
  */
-bool ospm_power_using_hw_begin(int hw_island, UHBUsage usage);
-void ospm_power_using_hw_end(int hw_island);
+bool gma_power_begin(struct drm_device *dev, bool force);
+void gma_power_end(struct drm_device *dev);
 
 /*
  * Use this function to do an instantaneous check for if the hw is on.
- * Only use this in cases where you know the g_state_change_mutex
- * is already held such as in irq install/uninstall and you need to
- * prevent a deadlock situation.  Otherwise use ospm_power_using_hw_begin().
+ * Only use this in cases where you know the mutex is already held such
+ * as in irq install/uninstall and you need to
+ * prevent a deadlock situation.  Otherwise use gma_power_begin().
  */
-bool ospm_power_is_hw_on(int hw_islands);
+bool gma_power_is_on(struct drm_device *dev);
 
 /*
- * Power up/down different hw component rails/islands
- */
-void ospm_power_island_down(int hw_islands);
-void ospm_power_island_up(int hw_islands);
-void ospm_suspend_graphics(void);
-/*
  * GFX-Runtime PM callbacks
  */
 int psb_runtime_suspend(struct device *dev);
 int psb_runtime_resume(struct device *dev);
 int psb_runtime_idle(struct device *dev);
-int ospm_runtime_pm_allow(struct drm_device * dev);
-void ospm_runtime_pm_forbid(struct drm_device * dev);
-
 
 #endif /*_PSB_POWERMGMT_H_*/
diff --git a/drivers/staging/gma500/psb_pvr_glue.c b/drivers/staging/gma500/psb_pvr_glue.c
deleted file mode 100644
index da78946b57ad..000000000000
--- a/drivers/staging/gma500/psb_pvr_glue.c
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
- * Copyright (c) 2009, Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-
-#include "psb_pvr_glue.h"
-
-/**
- * FIXME: should NOT use these file under env/linux directly
- */
-
-int psb_get_meminfo_by_handle(void *hKernelMemInfo,
-				void **ppsKernelMemInfo)
-{
-	return -EINVAL;
-#if 0
-	void *psKernelMemInfo = IMG_NULL;
-	PVRSRV_PER_PROCESS_DATA *psPerProc = IMG_NULL;
-	PVRSRV_ERROR eError;
-
-	psPerProc = PVRSRVPerProcessData(task_tgid_nr(current));
-	eError = PVRSRVLookupHandle(psPerProc->psHandleBase,
-				    (IMG_VOID *)&psKernelMemInfo,
-				    hKernelMemInfo,
-				    PVRSRV_HANDLE_TYPE_MEM_INFO);
-	if (eError != PVRSRV_OK) {
-		DRM_ERROR("Cannot find kernel meminfo for handle 0x%x\n",
-			  (u32)hKernelMemInfo);
-		return -EINVAL;
-	}
-
-	*ppsKernelMemInfo = psKernelMemInfo;
-
-	DRM_DEBUG("Got Kernel MemInfo for handle %lx\n",
-		  (u32)hKernelMemInfo);
-	return 0;
-#endif
-}
-
-int psb_get_pages_by_mem_handle(void *hOSMemHandle, struct page ***pages)
-{
-	return -EINVAL;
-#if 0
-	LinuxMemArea *psLinuxMemArea = (LinuxMemArea *)hOSMemHandle;
-	struct page **page_list;
-	if (psLinuxMemArea->eAreaType != LINUX_MEM_AREA_ALLOC_PAGES) {
-		DRM_ERROR("MemArea type is not LINUX_MEM_AREA_ALLOC_PAGES\n");
-		return -EINVAL;
-	}
-
-	page_list = psLinuxMemArea->uData.sPageList.pvPageList;
-	if (!page_list) {
-		DRM_DEBUG("Page List is NULL\n");
-		return -ENOMEM;
-	}
-
-	*pages = page_list;
-	return 0;
-#endif
-}
diff --git a/drivers/staging/gma500/psb_pvr_glue.h b/drivers/staging/gma500/psb_pvr_glue.h
deleted file mode 100644
index dee8cb2cadc0..000000000000
--- a/drivers/staging/gma500/psb_pvr_glue.h
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * Copyright (c) 2009, Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-
-#include "psb_drv.h"
-
-extern int psb_get_meminfo_by_handle(void * hKernelMemInfo,
-				void **ppsKernelMemInfo);
-extern u32 psb_get_tgid(void);
-extern int psb_get_pages_by_mem_handle(void * hOSMemHandle,
-					struct page ***pages);
diff --git a/drivers/staging/gma500/psb_sgx.c b/drivers/staging/gma500/psb_sgx.c
deleted file mode 100644
index 973134bc2345..000000000000
--- a/drivers/staging/gma500/psb_sgx.c
+++ /dev/null
@@ -1,238 +0,0 @@
-/**************************************************************************
- * Copyright (c) 2007, Intel Corporation.
- * All Rights Reserved.
- * Copyright (c) 2008, Tungsten Graphics, Inc. Cedar Park, TX. USA.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- **************************************************************************/
-
-#include <drm/drmP.h>
-#include "psb_drv.h"
-#include "psb_drm.h"
-#include "psb_reg.h"
-#include "ttm/ttm_bo_api.h"
-#include "ttm/ttm_execbuf_util.h"
-#include "psb_ttm_userobj_api.h"
-#include "ttm/ttm_placement.h"
-#include "psb_sgx.h"
-#include "psb_intel_reg.h"
-#include "psb_powermgmt.h"
-
-
-static inline int psb_same_page(unsigned long offset,
-				unsigned long offset2)
-{
-	return (offset & PAGE_MASK) == (offset2 & PAGE_MASK);
-}
-
-static inline unsigned long psb_offset_end(unsigned long offset,
-					      unsigned long end)
-{
-	offset = (offset + PAGE_SIZE) & PAGE_MASK;
-	return (end < offset) ? end : offset;
-}
-
-struct psb_dstbuf_cache {
-	unsigned int dst;
-	struct ttm_buffer_object *dst_buf;
-	unsigned long dst_offset;
-	uint32_t *dst_page;
-	unsigned int dst_page_offset;
-	struct ttm_bo_kmap_obj dst_kmap;
-	bool dst_is_iomem;
-};
-
-struct psb_validate_buffer {
-	struct ttm_validate_buffer base;
-	struct psb_validate_req req;
-	int ret;
-	struct psb_validate_arg __user *user_val_arg;
-	uint32_t flags;
-	uint32_t offset;
-	int po_correct;
-};
-static int
-psb_placement_fence_type(struct ttm_buffer_object *bo,
-			 uint64_t set_val_flags,
-			 uint64_t clr_val_flags,
-			 uint32_t new_fence_class,
-			 uint32_t *new_fence_type)
-{
-	int ret;
-	uint32_t n_fence_type;
-	/*
-	uint32_t set_flags = set_val_flags & 0xFFFFFFFF;
-	uint32_t clr_flags = clr_val_flags & 0xFFFFFFFF;
-	*/
-	struct ttm_fence_object *old_fence;
-	uint32_t old_fence_type;
-	struct ttm_placement placement;
-
-	if (unlikely
-	    (!(set_val_flags &
-	       (PSB_GPU_ACCESS_READ | PSB_GPU_ACCESS_WRITE)))) {
-		DRM_ERROR
-		    ("GPU access type (read / write) is not indicated.\n");
-		return -EINVAL;
-	}
-
-	/* User space driver doesn't set any TTM placement flags in
-					set_val_flags or clr_val_flags */
-	placement.num_placement = 0;/* FIXME  */
-	placement.num_busy_placement = 0;
-	placement.fpfn = 0;
-	placement.lpfn = 0;
-	ret = psb_ttm_bo_check_placement(bo, &placement);
-	if (unlikely(ret != 0))
-		return ret;
-
-	switch (new_fence_class) {
-	default:
-		n_fence_type = _PSB_FENCE_TYPE_EXE;
-	}
-
-	*new_fence_type = n_fence_type;
-	old_fence = (struct ttm_fence_object *) bo->sync_obj;
-	old_fence_type = (uint32_t) (unsigned long) bo->sync_obj_arg;
-
-	if (old_fence && ((new_fence_class != old_fence->fence_class) ||
-			  ((n_fence_type ^ old_fence_type) &
-			   old_fence_type))) {
-		ret = ttm_bo_wait(bo, 0, 1, 0);
-		if (unlikely(ret != 0))
-			return ret;
-	}
-	/*
-	bo->proposed_flags = (bo->proposed_flags | set_flags)
-		& ~clr_flags & TTM_PL_MASK_MEMTYPE;
-	*/
-	return 0;
-}
-
-int psb_validate_kernel_buffer(struct psb_context *context,
-			       struct ttm_buffer_object *bo,
-			       uint32_t fence_class,
-			       uint64_t set_flags, uint64_t clr_flags)
-{
-	struct psb_validate_buffer *item;
-	uint32_t cur_fence_type;
-	int ret;
-
-	if (unlikely(context->used_buffers >= PSB_NUM_VALIDATE_BUFFERS)) {
-		DRM_ERROR("Out of free validation buffer entries for "
-			  "kernel buffer validation.\n");
-		return -ENOMEM;
-	}
-
-	item = &context->buffers[context->used_buffers];
-	item->user_val_arg = NULL;
-	item->base.reserved = 0;
-
-	ret = ttm_bo_reserve(bo, 1, 0, 1, context->val_seq);
-	if (unlikely(ret != 0))
-	        return ret;
-
-	ret = psb_placement_fence_type(bo, set_flags, clr_flags, fence_class,
-				       &cur_fence_type);
-	if (unlikely(ret != 0)) {
-		ttm_bo_unreserve(bo);
-		return ret;
-	}
-
-	item->base.bo = ttm_bo_reference(bo);
-	item->base.new_sync_obj_arg = (void *) (unsigned long) cur_fence_type;
-	item->base.reserved = 1;
-
-	/* Internal locking ??? FIXMEAC */
-	list_add_tail(&item->base.head, &context->kern_validate_list);
-	context->used_buffers++;
-	/*
-	ret = ttm_bo_validate(bo, 1, 0, 0);
-	if (unlikely(ret != 0))
-		goto out_unlock;
-	*/
-	item->offset = bo->offset;
-	item->flags = bo->mem.placement;
-	context->fence_types |= cur_fence_type;
-
-	return ret;
-}
-
-void psb_fence_or_sync(struct drm_file *file_priv,
-		       uint32_t engine,
-		       uint32_t fence_types,
-		       uint32_t fence_flags,
-		       struct list_head *list,
-		       struct psb_ttm_fence_rep *fence_arg,
-		       struct ttm_fence_object **fence_p)
-{
-	struct drm_device *dev = file_priv->minor->dev;
-	struct drm_psb_private *dev_priv = psb_priv(dev);
-	struct ttm_fence_device *fdev = &dev_priv->fdev;
-	int ret;
-	struct ttm_fence_object *fence;
-	struct ttm_object_file *tfile = psb_fpriv(file_priv)->tfile;
-	uint32_t handle;
-
-	ret = ttm_fence_user_create(fdev, tfile,
-				    engine, fence_types,
-				    TTM_FENCE_FLAG_EMIT, &fence, &handle);
-	if (ret) {
-
-		/*
-		 * Fence creation failed.
-		 * Fall back to synchronous operation and idle the engine.
-		 */
-
-		if (!(fence_flags & DRM_PSB_FENCE_NO_USER)) {
-
-			/*
-			 * Communicate to user-space that
-			 * fence creation has failed and that
-			 * the engine is idle.
-			 */
-
-			fence_arg->handle = ~0;
-			fence_arg->error = ret;
-		}
-
-		ttm_eu_backoff_reservation(list);
-		if (fence_p)
-			*fence_p = NULL;
-		return;
-	}
-
-	ttm_eu_fence_buffer_objects(list, fence);
-	if (!(fence_flags & DRM_PSB_FENCE_NO_USER)) {
-		struct ttm_fence_info info = ttm_fence_get_info(fence);
-		fence_arg->handle = handle;
-		fence_arg->fence_class = ttm_fence_class(fence);
-		fence_arg->fence_type = ttm_fence_types(fence);
-		fence_arg->signaled_types = info.signaled_types;
-		fence_arg->error = 0;
-	} else {
-		ret =
-		    ttm_ref_object_base_unref(tfile, handle,
-					      ttm_fence_type);
-		BUG_ON(ret);
-	}
-
-	if (fence_p)
-		*fence_p = fence;
-	else if (fence)
-		ttm_fence_object_unref(&fence);
-}
-
diff --git a/drivers/staging/gma500/psb_sgx.h b/drivers/staging/gma500/psb_sgx.h
deleted file mode 100644
index 9300e2da993a..000000000000
--- a/drivers/staging/gma500/psb_sgx.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * Copyright (c) 2008, Intel Corporation
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Authors:
- *    Eric Anholt <eric@anholt.net>
- *
- **/
-#ifndef _PSB_SGX_H_
-#define _PSB_SGX_H_
-
-extern int psb_submit_video_cmdbuf(struct drm_device *dev,
-			       struct ttm_buffer_object *cmd_buffer,
-			       unsigned long cmd_offset,
-			       unsigned long cmd_size,
-			       struct ttm_fence_object *fence);
-
-extern int drm_idle_check_interval;
-
-#endif
diff --git a/drivers/staging/gma500/psb_ttm_fence.c b/drivers/staging/gma500/psb_ttm_fence.c
deleted file mode 100644
index d1c359018cba..000000000000
--- a/drivers/staging/gma500/psb_ttm_fence.c
+++ /dev/null
@@ -1,605 +0,0 @@
-/**************************************************************************
- *
- * Copyright (c) 2006-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA
- * All Rights Reserved.
- * Copyright (c) 2009 VMware, Inc., Palo Alto, CA., USA
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- **************************************************************************/
-/*
- * Authors: Thomas Hellstrom <thomas-at-tungstengraphics-dot-com>
- */
-
-#include "psb_ttm_fence_api.h"
-#include "psb_ttm_fence_driver.h"
-#include <linux/wait.h>
-#include <linux/sched.h>
-
-#include <drm/drmP.h>
-
-/*
- * Simple implementation for now.
- */
-
-static void ttm_fence_lockup(struct ttm_fence_object *fence, uint32_t mask)
-{
-	struct ttm_fence_class_manager *fc = ttm_fence_fc(fence);
-
-	printk(KERN_ERR "GPU lockup dectected on engine %u "
-	       "fence type 0x%08x\n",
-	       (unsigned int)fence->fence_class, (unsigned int)mask);
-	/*
-	 * Give engines some time to idle?
-	 */
-
-	write_lock(&fc->lock);
-	ttm_fence_handler(fence->fdev, fence->fence_class,
-			  fence->sequence, mask, -EBUSY);
-	write_unlock(&fc->lock);
-}
-
-/*
- * Convenience function to be called by fence::wait methods that
- * need polling.
- */
-
-int ttm_fence_wait_polling(struct ttm_fence_object *fence, bool lazy,
-			   bool interruptible, uint32_t mask)
-{
-	struct ttm_fence_class_manager *fc = ttm_fence_fc(fence);
-	const struct ttm_fence_driver *driver = ttm_fence_driver(fence);
-	uint32_t count = 0;
-	int ret;
-	unsigned long end_jiffies = fence->timeout_jiffies;
-
-	DECLARE_WAITQUEUE(entry, current);
-	add_wait_queue(&fc->fence_queue, &entry);
-
-	ret = 0;
-
-	for (;;) {
-		__set_current_state((interruptible) ?
-				    TASK_INTERRUPTIBLE : TASK_UNINTERRUPTIBLE);
-		if (ttm_fence_object_signaled(fence, mask))
-			break;
-		if (time_after_eq(jiffies, end_jiffies)) {
-			if (driver->lockup)
-				driver->lockup(fence, mask);
-			else
-				ttm_fence_lockup(fence, mask);
-			continue;
-		}
-		if (lazy)
-			schedule_timeout(1);
-		else if ((++count & 0x0F) == 0) {
-			__set_current_state(TASK_RUNNING);
-			schedule();
-			__set_current_state((interruptible) ?
-					    TASK_INTERRUPTIBLE :
-					    TASK_UNINTERRUPTIBLE);
-		}
-		if (interruptible && signal_pending(current)) {
-			ret = -ERESTART;
-			break;
-		}
-	}
-	__set_current_state(TASK_RUNNING);
-	remove_wait_queue(&fc->fence_queue, &entry);
-	return ret;
-}
-
-/*
- * Typically called by the IRQ handler.
- */
-
-void ttm_fence_handler(struct ttm_fence_device *fdev, uint32_t fence_class,
-		       uint32_t sequence, uint32_t type, uint32_t error)
-{
-	int wake = 0;
-	uint32_t diff;
-	uint32_t relevant_type;
-	uint32_t new_type;
-	struct ttm_fence_class_manager *fc = &fdev->fence_class[fence_class];
-	const struct ttm_fence_driver *driver = ttm_fence_driver_from_dev(fdev);
-	struct list_head *head;
-	struct ttm_fence_object *fence, *next;
-	bool found = false;
-
-	if (list_empty(&fc->ring))
-		return;
-
-	list_for_each_entry(fence, &fc->ring, ring) {
-		diff = (sequence - fence->sequence) & fc->sequence_mask;
-		if (diff > fc->wrap_diff) {
-			found = true;
-			break;
-		}
-	}
-
-	fc->waiting_types &= ~type;
-	head = (found) ? &fence->ring : &fc->ring;
-
-	list_for_each_entry_safe_reverse(fence, next, head, ring) {
-		if (&fence->ring == &fc->ring)
-			break;
-
-		DRM_DEBUG("Fence 0x%08lx, sequence 0x%08x, type 0x%08x\n",
-			  (unsigned long)fence, fence->sequence,
-			  fence->fence_type);
-
-		if (error) {
-			fence->info.error = error;
-			fence->info.signaled_types = fence->fence_type;
-			list_del_init(&fence->ring);
-			wake = 1;
-			break;
-		}
-
-		relevant_type = type & fence->fence_type;
-		new_type = (fence->info.signaled_types | relevant_type) ^
-		    fence->info.signaled_types;
-
-		if (new_type) {
-			fence->info.signaled_types |= new_type;
-			DRM_DEBUG("Fence 0x%08lx signaled 0x%08x\n",
-				  (unsigned long)fence,
-				  fence->info.signaled_types);
-
-			if (unlikely(driver->signaled))
-				driver->signaled(fence);
-
-			if (driver->needed_flush)
-				fc->pending_flush |=
-				    driver->needed_flush(fence);
-
-			if (new_type & fence->waiting_types)
-				wake = 1;
-		}
-
-		fc->waiting_types |=
-		    fence->waiting_types & ~fence->info.signaled_types;
-
-		if (!(fence->fence_type & ~fence->info.signaled_types)) {
-			DRM_DEBUG("Fence completely signaled 0x%08lx\n",
-				  (unsigned long)fence);
-			list_del_init(&fence->ring);
-		}
-	}
-
-	/*
-	 * Reinstate lost waiting types.
-	 */
-
-	if ((fc->waiting_types & type) != type) {
-		head = head->prev;
-		list_for_each_entry(fence, head, ring) {
-			if (&fence->ring == &fc->ring)
-				break;
-			diff =
-			    (fc->highest_waiting_sequence -
-			     fence->sequence) & fc->sequence_mask;
-			if (diff > fc->wrap_diff)
-				break;
-
-			fc->waiting_types |=
-			    fence->waiting_types & ~fence->info.signaled_types;
-		}
-	}
-
-	if (wake)
-		wake_up_all(&fc->fence_queue);
-}
-
-static void ttm_fence_unring(struct ttm_fence_object *fence)
-{
-	struct ttm_fence_class_manager *fc = ttm_fence_fc(fence);
-	unsigned long irq_flags;
-
-	write_lock_irqsave(&fc->lock, irq_flags);
-	list_del_init(&fence->ring);
-	write_unlock_irqrestore(&fc->lock, irq_flags);
-}
-
-bool ttm_fence_object_signaled(struct ttm_fence_object *fence, uint32_t mask)
-{
-	unsigned long flags;
-	bool signaled;
-	const struct ttm_fence_driver *driver = ttm_fence_driver(fence);
-	struct ttm_fence_class_manager *fc = ttm_fence_fc(fence);
-
-	mask &= fence->fence_type;
-	read_lock_irqsave(&fc->lock, flags);
-	signaled = (mask & fence->info.signaled_types) == mask;
-	read_unlock_irqrestore(&fc->lock, flags);
-	if (!signaled && driver->poll) {
-		write_lock_irqsave(&fc->lock, flags);
-		driver->poll(fence->fdev, fence->fence_class, mask);
-		signaled = (mask & fence->info.signaled_types) == mask;
-		write_unlock_irqrestore(&fc->lock, flags);
-	}
-	return signaled;
-}
-
-int ttm_fence_object_flush(struct ttm_fence_object *fence, uint32_t type)
-{
-	const struct ttm_fence_driver *driver = ttm_fence_driver(fence);
-	struct ttm_fence_class_manager *fc = ttm_fence_fc(fence);
-	unsigned long irq_flags;
-	uint32_t saved_pending_flush;
-	uint32_t diff;
-	bool call_flush;
-
-	if (type & ~fence->fence_type) {
-		DRM_ERROR("Flush trying to extend fence type, "
-			  "0x%x, 0x%x\n", type, fence->fence_type);
-		return -EINVAL;
-	}
-
-	write_lock_irqsave(&fc->lock, irq_flags);
-	fence->waiting_types |= type;
-	fc->waiting_types |= fence->waiting_types;
-	diff = (fence->sequence - fc->highest_waiting_sequence) &
-	    fc->sequence_mask;
-
-	if (diff < fc->wrap_diff)
-		fc->highest_waiting_sequence = fence->sequence;
-
-	/*
-	 * fence->waiting_types has changed. Determine whether
-	 * we need to initiate some kind of flush as a result of this.
-	 */
-
-	saved_pending_flush = fc->pending_flush;
-	if (driver->needed_flush)
-		fc->pending_flush |= driver->needed_flush(fence);
-
-	if (driver->poll)
-		driver->poll(fence->fdev, fence->fence_class,
-			     fence->waiting_types);
-
-	call_flush = (fc->pending_flush != 0);
-	write_unlock_irqrestore(&fc->lock, irq_flags);
-
-	if (call_flush && driver->flush)
-		driver->flush(fence->fdev, fence->fence_class);
-
-	return 0;
-}
-
-/*
- * Make sure old fence objects are signaled before their fence sequences are
- * wrapped around and reused.
- */
-
-void ttm_fence_flush_old(struct ttm_fence_device *fdev,
-			 uint32_t fence_class, uint32_t sequence)
-{
-	struct ttm_fence_class_manager *fc = &fdev->fence_class[fence_class];
-	struct ttm_fence_object *fence;
-	unsigned long irq_flags;
-	const struct ttm_fence_driver *driver = fdev->driver;
-	bool call_flush;
-
-	uint32_t diff;
-
-	write_lock_irqsave(&fc->lock, irq_flags);
-
-	list_for_each_entry_reverse(fence, &fc->ring, ring) {
-		diff = (sequence - fence->sequence) & fc->sequence_mask;
-		if (diff <= fc->flush_diff)
-			break;
-
-		fence->waiting_types = fence->fence_type;
-		fc->waiting_types |= fence->fence_type;
-
-		if (driver->needed_flush)
-			fc->pending_flush |= driver->needed_flush(fence);
-	}
-
-	if (driver->poll)
-		driver->poll(fdev, fence_class, fc->waiting_types);
-
-	call_flush = (fc->pending_flush != 0);
-	write_unlock_irqrestore(&fc->lock, irq_flags);
-
-	if (call_flush && driver->flush)
-		driver->flush(fdev, fence->fence_class);
-
-	/*
-	 * FIXME: Shold we implement a wait here for really old fences?
-	 */
-
-}
-
-int ttm_fence_object_wait(struct ttm_fence_object *fence,
-			  bool lazy, bool interruptible, uint32_t mask)
-{
-	const struct ttm_fence_driver *driver = ttm_fence_driver(fence);
-	struct ttm_fence_class_manager *fc = ttm_fence_fc(fence);
-	int ret = 0;
-	unsigned long timeout;
-	unsigned long cur_jiffies;
-	unsigned long to_jiffies;
-
-	if (mask & ~fence->fence_type) {
-		DRM_ERROR("Wait trying to extend fence type"
-			  " 0x%08x 0x%08x\n", mask, fence->fence_type);
-		BUG();
-		return -EINVAL;
-	}
-
-	if (driver->wait)
-		return driver->wait(fence, lazy, interruptible, mask);
-
-	ttm_fence_object_flush(fence, mask);
-retry:
-	if (!driver->has_irq ||
-	    driver->has_irq(fence->fdev, fence->fence_class, mask)) {
-
-		cur_jiffies = jiffies;
-		to_jiffies = fence->timeout_jiffies;
-
-		timeout = (time_after(to_jiffies, cur_jiffies)) ?
-		    to_jiffies - cur_jiffies : 1;
-
-		if (interruptible)
-			ret = wait_event_interruptible_timeout
-			    (fc->fence_queue,
-			     ttm_fence_object_signaled(fence, mask), timeout);
-		else
-			ret = wait_event_timeout
-			    (fc->fence_queue,
-			     ttm_fence_object_signaled(fence, mask), timeout);
-
-		if (unlikely(ret == -ERESTARTSYS))
-			return -ERESTART;
-
-		if (unlikely(ret == 0)) {
-			if (driver->lockup)
-				driver->lockup(fence, mask);
-			else
-				ttm_fence_lockup(fence, mask);
-			goto retry;
-		}
-
-		return 0;
-	}
-
-	return ttm_fence_wait_polling(fence, lazy, interruptible, mask);
-}
-
-int ttm_fence_object_emit(struct ttm_fence_object *fence, uint32_t fence_flags,
-			  uint32_t fence_class, uint32_t type)
-{
-	const struct ttm_fence_driver *driver = ttm_fence_driver(fence);
-	struct ttm_fence_class_manager *fc = ttm_fence_fc(fence);
-	unsigned long flags;
-	uint32_t sequence;
-	unsigned long timeout;
-	int ret;
-
-	ttm_fence_unring(fence);
-	ret = driver->emit(fence->fdev,
-			   fence_class, fence_flags, &sequence, &timeout);
-	if (ret)
-		return ret;
-
-	write_lock_irqsave(&fc->lock, flags);
-	fence->fence_class = fence_class;
-	fence->fence_type = type;
-	fence->waiting_types = 0;
-	fence->info.signaled_types = 0;
-	fence->info.error = 0;
-	fence->sequence = sequence;
-	fence->timeout_jiffies = timeout;
-	if (list_empty(&fc->ring))
-		fc->highest_waiting_sequence = sequence - 1;
-	list_add_tail(&fence->ring, &fc->ring);
-	fc->latest_queued_sequence = sequence;
-	write_unlock_irqrestore(&fc->lock, flags);
-	return 0;
-}
-
-int ttm_fence_object_init(struct ttm_fence_device *fdev,
-			  uint32_t fence_class,
-			  uint32_t type,
-			  uint32_t create_flags,
-			  void (*destroy) (struct ttm_fence_object *),
-			  struct ttm_fence_object *fence)
-{
-	int ret = 0;
-
-	kref_init(&fence->kref);
-	fence->fence_class = fence_class;
-	fence->fence_type = type;
-	fence->info.signaled_types = 0;
-	fence->waiting_types = 0;
-	fence->sequence = 0;
-	fence->info.error = 0;
-	fence->fdev = fdev;
-	fence->destroy = destroy;
-	INIT_LIST_HEAD(&fence->ring);
-	atomic_inc(&fdev->count);
-
-	if (create_flags & TTM_FENCE_FLAG_EMIT) {
-		ret = ttm_fence_object_emit(fence, create_flags,
-					    fence->fence_class, type);
-	}
-
-	return ret;
-}
-
-int ttm_fence_object_create(struct ttm_fence_device *fdev,
-			    uint32_t fence_class,
-			    uint32_t type,
-			    uint32_t create_flags,
-			    struct ttm_fence_object **c_fence)
-{
-	struct ttm_fence_object *fence;
-	int ret;
-
-	ret = ttm_mem_global_alloc(fdev->mem_glob,
-				   sizeof(*fence),
-				   false,
-				   false);
-	if (unlikely(ret != 0)) {
-		printk(KERN_ERR "Out of memory creating fence object\n");
-		return ret;
-	}
-
-	fence = kmalloc(sizeof(*fence), GFP_KERNEL);
-	if (!fence) {
-		printk(KERN_ERR "Out of memory creating fence object\n");
-		ttm_mem_global_free(fdev->mem_glob, sizeof(*fence));
-		return -ENOMEM;
-	}
-
-	ret = ttm_fence_object_init(fdev, fence_class, type,
-				    create_flags, NULL, fence);
-	if (ret) {
-		ttm_fence_object_unref(&fence);
-		return ret;
-	}
-	*c_fence = fence;
-
-	return 0;
-}
-
-static void ttm_fence_object_destroy(struct kref *kref)
-{
-	struct ttm_fence_object *fence =
-	    container_of(kref, struct ttm_fence_object, kref);
-	struct ttm_fence_class_manager *fc = ttm_fence_fc(fence);
-	unsigned long irq_flags;
-
-	write_lock_irqsave(&fc->lock, irq_flags);
-	list_del_init(&fence->ring);
-	write_unlock_irqrestore(&fc->lock, irq_flags);
-
-	atomic_dec(&fence->fdev->count);
-	if (fence->destroy)
-		fence->destroy(fence);
-	else {
-		ttm_mem_global_free(fence->fdev->mem_glob,
-				    sizeof(*fence));
-		kfree(fence);
-	}
-}
-
-void ttm_fence_device_release(struct ttm_fence_device *fdev)
-{
-	kfree(fdev->fence_class);
-}
-
-int
-ttm_fence_device_init(int num_classes,
-		      struct ttm_mem_global *mem_glob,
-		      struct ttm_fence_device *fdev,
-		      const struct ttm_fence_class_init *init,
-		      bool replicate_init,
-		      const struct ttm_fence_driver *driver)
-{
-	struct ttm_fence_class_manager *fc;
-	const struct ttm_fence_class_init *fci;
-	int i;
-
-	fdev->mem_glob = mem_glob;
-	fdev->fence_class = kzalloc(num_classes *
-				    sizeof(*fdev->fence_class), GFP_KERNEL);
-
-	if (unlikely(!fdev->fence_class))
-		return -ENOMEM;
-
-	fdev->num_classes = num_classes;
-	atomic_set(&fdev->count, 0);
-	fdev->driver = driver;
-
-	for (i = 0; i < fdev->num_classes; ++i) {
-		fc = &fdev->fence_class[i];
-		fci = &init[(replicate_init) ? 0 : i];
-
-		fc->wrap_diff = fci->wrap_diff;
-		fc->flush_diff = fci->flush_diff;
-		fc->sequence_mask = fci->sequence_mask;
-
-		rwlock_init(&fc->lock);
-		INIT_LIST_HEAD(&fc->ring);
-		init_waitqueue_head(&fc->fence_queue);
-	}
-
-	return 0;
-}
-
-struct ttm_fence_info ttm_fence_get_info(struct ttm_fence_object *fence)
-{
-	struct ttm_fence_class_manager *fc = ttm_fence_fc(fence);
-	struct ttm_fence_info tmp;
-	unsigned long irq_flags;
-
-	read_lock_irqsave(&fc->lock, irq_flags);
-	tmp = fence->info;
-	read_unlock_irqrestore(&fc->lock, irq_flags);
-
-	return tmp;
-}
-
-void ttm_fence_object_unref(struct ttm_fence_object **p_fence)
-{
-	struct ttm_fence_object *fence = *p_fence;
-
-	*p_fence = NULL;
-	(void)kref_put(&fence->kref, &ttm_fence_object_destroy);
-}
-
-/*
- * Placement / BO sync object glue.
- */
-
-bool ttm_fence_sync_obj_signaled(void *sync_obj, void *sync_arg)
-{
-	struct ttm_fence_object *fence = (struct ttm_fence_object *)sync_obj;
-	uint32_t fence_types = (uint32_t) (unsigned long)sync_arg;
-
-	return ttm_fence_object_signaled(fence, fence_types);
-}
-
-int ttm_fence_sync_obj_wait(void *sync_obj, void *sync_arg,
-			    bool lazy, bool interruptible)
-{
-	struct ttm_fence_object *fence = (struct ttm_fence_object *)sync_obj;
-	uint32_t fence_types = (uint32_t) (unsigned long)sync_arg;
-
-	return ttm_fence_object_wait(fence, lazy, interruptible, fence_types);
-}
-
-int ttm_fence_sync_obj_flush(void *sync_obj, void *sync_arg)
-{
-	struct ttm_fence_object *fence = (struct ttm_fence_object *)sync_obj;
-	uint32_t fence_types = (uint32_t) (unsigned long)sync_arg;
-
-	return ttm_fence_object_flush(fence, fence_types);
-}
-
-void ttm_fence_sync_obj_unref(void **sync_obj)
-{
-	ttm_fence_object_unref((struct ttm_fence_object **)sync_obj);
-}
-
-void *ttm_fence_sync_obj_ref(void *sync_obj)
-{
-	return (void *)
-	    ttm_fence_object_ref((struct ttm_fence_object *)sync_obj);
-}
diff --git a/drivers/staging/gma500/psb_ttm_fence_api.h b/drivers/staging/gma500/psb_ttm_fence_api.h
deleted file mode 100644
index b14a42711d03..000000000000
--- a/drivers/staging/gma500/psb_ttm_fence_api.h
+++ /dev/null
@@ -1,272 +0,0 @@
-/**************************************************************************
- *
- * Copyright (c) 2006-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA
- * All Rights Reserved.
- * Copyright (c) 2009 VMware, Inc., Palo Alto, CA., USA
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- **************************************************************************/
-/*
- * Authors: Thomas Hellstrom <thomas-at-tungstengraphics-dot-com>
- */
-#ifndef _TTM_FENCE_API_H_
-#define _TTM_FENCE_API_H_
-
-#include <linux/list.h>
-#include <linux/kref.h>
-
-#define TTM_FENCE_FLAG_EMIT (1 << 0)
-#define TTM_FENCE_TYPE_EXE  (1 << 0)
-
-struct ttm_fence_device;
-
-/**
- * struct ttm_fence_info
- *
- * @fence_class:    The fence class.
- * @fence_type:     Bitfield indicating types for this fence.
- * @signaled_types: Bitfield indicating which types are signaled.
- * @error:          Last error reported from the device.
- *
- * Used as output from the ttm_fence_get_info
- */
-
-struct ttm_fence_info {
-	uint32_t signaled_types;
-	uint32_t error;
-};
-
-/**
- * struct ttm_fence_object
- *
- * @fdev:            Pointer to the fence device struct.
- * @kref:            Holds the reference count of this fence object.
- * @ring:            List head used for the circular list of not-completely
- *                   signaled fences.
- * @info:            Data for fast retrieval using the ttm_fence_get_info()
- * function.
- * @timeout_jiffies: Absolute jiffies value indicating when this fence
- *                   object times out and, if waited on, calls ttm_fence_lockup
- *                   to check for and resolve a GPU lockup.
- * @sequence:        Fence sequence number.
- * @waiting_types:   Types currently waited on.
- * @destroy:         Called to free the fence object, when its refcount has
- *                   reached zero. If NULL, kfree is used.
- *
- * This struct is provided in the driver interface so that drivers can
- * derive from it and create their own fence implementation. All members
- * are private to the fence implementation and the fence driver callbacks.
- * Otherwise a driver may access the derived object using container_of().
- */
-
-struct ttm_fence_object {
-	struct ttm_fence_device *fdev;
-	struct kref kref;
-	uint32_t fence_class;
-	uint32_t fence_type;
-
-	/*
-	 * The below fields are protected by the fence class
-	 * manager spinlock.
-	 */
-
-	struct list_head ring;
-	struct ttm_fence_info info;
-	unsigned long timeout_jiffies;
-	uint32_t sequence;
-	uint32_t waiting_types;
-	void (*destroy) (struct ttm_fence_object *);
-};
-
-/**
- * ttm_fence_object_init
- *
- * @fdev: Pointer to a struct ttm_fence_device.
- * @fence_class: Fence class for this fence.
- * @type: Fence type for this fence.
- * @create_flags: Flags indicating varios actions at init time. At this point
- * there's only TTM_FENCE_FLAG_EMIT, which triggers a sequence emission to
- * the command stream.
- * @destroy: Destroy function. If NULL, kfree() is used.
- * @fence: The struct ttm_fence_object to initialize.
- *
- * Initialize a pre-allocated fence object. This function, together with the
- * destroy function makes it possible to derive driver-specific fence objects.
- */
-
-extern int
-ttm_fence_object_init(struct ttm_fence_device *fdev,
-		      uint32_t fence_class,
-		      uint32_t type,
-		      uint32_t create_flags,
-		      void (*destroy) (struct ttm_fence_object *fence),
-		      struct ttm_fence_object *fence);
-
-/**
- * ttm_fence_object_create
- *
- * @fdev: Pointer to a struct ttm_fence_device.
- * @fence_class: Fence class for this fence.
- * @type: Fence type for this fence.
- * @create_flags: Flags indicating varios actions at init time. At this point
- * there's only TTM_FENCE_FLAG_EMIT, which triggers a sequence emission to
- * the command stream.
- * @c_fence: On successful termination, *(@c_fence) will point to the created
- * fence object.
- *
- * Create and initialize a struct ttm_fence_object. The destroy function will
- * be set to kfree().
- */
-
-extern int
-ttm_fence_object_create(struct ttm_fence_device *fdev,
-			uint32_t fence_class,
-			uint32_t type,
-			uint32_t create_flags,
-			struct ttm_fence_object **c_fence);
-
-/**
- * ttm_fence_object_wait
- *
- * @fence: The fence object to wait on.
- * @lazy: Allow sleeps to reduce the cpu-usage if polling.
- * @interruptible: Sleep interruptible when waiting.
- * @type_mask: Wait for the given type_mask to signal.
- *
- * Wait for a fence to signal the given type_mask. The function will
- * perform a fence_flush using type_mask. (See ttm_fence_object_flush).
- *
- * Returns
- * -ERESTART if interrupted by a signal.
- * May return driver-specific error codes if timed-out.
- */
-
-extern int
-ttm_fence_object_wait(struct ttm_fence_object *fence,
-		      bool lazy, bool interruptible, uint32_t type_mask);
-
-/**
- * ttm_fence_object_flush
- *
- * @fence: The fence object to flush.
- * @flush_mask: Fence types to flush.
- *
- * Make sure that the given fence eventually signals the
- * types indicated by @flush_mask. Note that this may or may not
- * map to a CPU or GPU flush.
- */
-
-extern int
-ttm_fence_object_flush(struct ttm_fence_object *fence, uint32_t flush_mask);
-
-/**
- * ttm_fence_get_info
- *
- * @fence: The fence object.
- *
- * Copy the info block from the fence while holding relevant locks.
- */
-
-struct ttm_fence_info ttm_fence_get_info(struct ttm_fence_object *fence);
-
-/**
- * ttm_fence_object_ref
- *
- * @fence: The fence object.
- *
- * Return a ref-counted pointer to the fence object indicated by @fence.
- */
-
-static inline struct ttm_fence_object *ttm_fence_object_ref(struct
-							    ttm_fence_object
-							    *fence)
-{
-	kref_get(&fence->kref);
-	return fence;
-}
-
-/**
- * ttm_fence_object_unref
- *
- * @p_fence: Pointer to a ref-counted pinter to a struct ttm_fence_object.
- *
- * Unreference the fence object pointed to by *(@p_fence), clearing
- * *(p_fence).
- */
-
-extern void ttm_fence_object_unref(struct ttm_fence_object **p_fence);
-
-/**
- * ttm_fence_object_signaled
- *
- * @fence: Pointer to the struct ttm_fence_object.
- * @mask: Type mask to check whether signaled.
- *
- * This function checks (without waiting) whether the fence object
- * pointed to by @fence has signaled the types indicated by @mask,
- * and returns 1 if true, 0 if false. This function does NOT perform
- * an implicit fence flush.
- */
-
-extern bool
-ttm_fence_object_signaled(struct ttm_fence_object *fence, uint32_t mask);
-
-/**
- * ttm_fence_class
- *
- * @fence: Pointer to the struct ttm_fence_object.
- *
- * Convenience function that returns the fence class of a
- * struct ttm_fence_object.
- */
-
-static inline uint32_t ttm_fence_class(const struct ttm_fence_object *fence)
-{
-	return fence->fence_class;
-}
-
-/**
- * ttm_fence_types
- *
- * @fence: Pointer to the struct ttm_fence_object.
- *
- * Convenience function that returns the fence types of a
- * struct ttm_fence_object.
- */
-
-static inline uint32_t ttm_fence_types(const struct ttm_fence_object *fence)
-{
-	return fence->fence_type;
-}
-
-/*
- * The functions below are wrappers to the above functions, with
- * similar names but with sync_obj omitted. These wrappers are intended
- * to be plugged directly into the buffer object driver's sync object
- * API, if the driver chooses to use ttm_fence_objects as buffer object
- * sync objects. In the prototypes below, a sync_obj is cast to a
- * struct ttm_fence_object, whereas a sync_arg is cast to an
- * uint32_t representing a fence_type argument.
- */
-
-extern bool ttm_fence_sync_obj_signaled(void *sync_obj, void *sync_arg);
-extern int ttm_fence_sync_obj_wait(void *sync_obj, void *sync_arg,
-				   bool lazy, bool interruptible);
-extern int ttm_fence_sync_obj_flush(void *sync_obj, void *sync_arg);
-extern void ttm_fence_sync_obj_unref(void **sync_obj);
-extern void *ttm_fence_sync_obj_ref(void *sync_obj);
-
-#endif
diff --git a/drivers/staging/gma500/psb_ttm_fence_driver.h b/drivers/staging/gma500/psb_ttm_fence_driver.h
deleted file mode 100644
index c35c569fa3f0..000000000000
--- a/drivers/staging/gma500/psb_ttm_fence_driver.h
+++ /dev/null
@@ -1,302 +0,0 @@
-/**************************************************************************
- *
- * Copyright (c) 2006-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA
- * All Rights Reserved.
- * Copyright (c) 2009 VMware, Inc., Palo Alto, CA., USA
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- **************************************************************************/
-/*
- * Authors: Thomas Hellstrom <thomas-at-tungstengraphics-dot-com>
- */
-#ifndef _TTM_FENCE_DRIVER_H_
-#define _TTM_FENCE_DRIVER_H_
-
-#include <linux/kref.h>
-#include <linux/spinlock.h>
-#include <linux/wait.h>
-#include "psb_ttm_fence_api.h"
-#include "ttm/ttm_memory.h"
-
-/** @file ttm_fence_driver.h
- *
- * Definitions needed for a driver implementing the
- * ttm_fence subsystem.
- */
-
-/**
- * struct ttm_fence_class_manager:
- *
- * @wrap_diff: Sequence difference to catch 32-bit wrapping.
- * if (seqa - seqb) > @wrap_diff, then seqa < seqb.
- * @flush_diff: Sequence difference to trigger fence flush.
- * if (cur_seq - seqa) > @flush_diff, then consider fence object with
- * seqa as old an needing a flush.
- * @sequence_mask: Mask of valid bits in a fence sequence.
- * @lock: Lock protecting this struct as well as fence objects
- * associated with this struct.
- * @ring: Circular sequence-ordered list of fence objects.
- * @pending_flush: Fence types currently needing a flush.
- * @waiting_types: Fence types that are currently waited for.
- * @fence_queue: Queue of waiters on fences belonging to this fence class.
- * @highest_waiting_sequence: Sequence number of the fence with highest
- * sequence number and that is waited for.
- * @latest_queued_sequence: Sequence number of the fence latest queued
- * on the ring.
- */
-
-struct ttm_fence_class_manager {
-
-	/*
-	 * Unprotected constant members.
-	 */
-
-	uint32_t wrap_diff;
-	uint32_t flush_diff;
-	uint32_t sequence_mask;
-
-	/*
-	 * The rwlock protects this structure as well as
-	 * the data in all fence objects belonging to this
-	 * class. This should be OK as most fence objects are
-	 * only read from once they're created.
-	 */
-
-	rwlock_t lock;
-	struct list_head ring;
-	uint32_t pending_flush;
-	uint32_t waiting_types;
-	wait_queue_head_t fence_queue;
-	uint32_t highest_waiting_sequence;
-	uint32_t latest_queued_sequence;
-};
-
-/**
- * struct ttm_fence_device
- *
- * @fence_class:  Array of fence class managers.
- * @num_classes:  Array dimension of @fence_class.
- * @count:        Current number of fence objects for statistics.
- * @driver:       Driver struct.
- *
- * Provided in the driver interface so that the driver can derive
- * from this struct for its driver_private, and accordingly
- * access the driver_private from the fence driver callbacks.
- *
- * All members except "count" are initialized at creation and
- * never touched after that. No protection needed.
- *
- * This struct is private to the fence implementation and to the fence
- * driver callbacks, and may otherwise be used by drivers only to
- * obtain the derived device_private object using container_of().
- */
-
-struct ttm_fence_device {
-	struct ttm_mem_global *mem_glob;
-	struct ttm_fence_class_manager *fence_class;
-	uint32_t num_classes;
-	atomic_t count;
-	const struct ttm_fence_driver *driver;
-};
-
-/**
- * struct ttm_fence_class_init
- *
- * @wrap_diff:    Fence sequence number wrap indicator. If
- * (sequence1 - sequence2) > @wrap_diff, then sequence1 is
- * considered to be older than sequence2.
- * @flush_diff:   Fence sequence number flush indicator.
- * If a non-completely-signaled fence has a fence sequence number
- * sequence1 and (sequence1 - current_emit_sequence) > @flush_diff,
- * the fence is considered too old and it will be flushed upon the
- * next call of ttm_fence_flush_old(), to make sure no fences with
- * stale sequence numbers remains unsignaled. @flush_diff should
- * be sufficiently less than @wrap_diff.
- * @sequence_mask: Mask with valid bits of the fence sequence
- * number set to 1.
- *
- * This struct is used as input to ttm_fence_device_init.
- */
-
-struct ttm_fence_class_init {
-	uint32_t wrap_diff;
-	uint32_t flush_diff;
-	uint32_t sequence_mask;
-};
-
-/**
- * struct ttm_fence_driver
- *
- * @has_irq: Called by a potential waiter. Should return 1 if a
- * fence object with indicated parameters is expected to signal
- * automatically, and 0 if the fence implementation needs to
- * repeatedly call @poll to make it signal.
- * @emit:    Make sure a fence with the given parameters is
- * present in the indicated command stream. Return its sequence number
- * in "breadcrumb".
- * @poll:    Check and report sequences of the given "fence_class"
- *           that have signaled "types"
- * @flush:   Make sure that the types indicated by the bitfield
- *           ttm_fence_class_manager::pending_flush will eventually
- *           signal. These bits have been put together using the
- *           result from the needed_flush function described below.
- * @needed_flush: Given the fence_class and fence_types indicated by
- *           "fence", and the last received fence sequence of this
- *           fence class, indicate what types need a fence flush to
- *           signal. Return as a bitfield.
- * @wait:    Set to non-NULL if the driver wants to override the fence
- *           wait implementation. Return 0 on success, -EBUSY on failure,
- *           and -ERESTART if interruptible and a signal is pending.
- * @signaled:  Driver callback that is called whenever a
- *           ttm_fence_object::signaled_types has changed status.
- *           This function is called from atomic context,
- *           with the ttm_fence_class_manager::lock held in write mode.
- * @lockup:  Driver callback that is called whenever a wait has exceeded
- *           the lifetime of a fence object.
- *           If there is a GPU lockup,
- *           this function should, if possible, reset the GPU,
- *           call the ttm_fence_handler with an error status, and
- *           return. If no lockup was detected, simply extend the
- *           fence timeout_jiffies and return. The driver might
- *           want to protect the lockup check with a mutex and cache a
- *           non-locked-up status for a while to avoid an excessive
- *           amount of lockup checks from every waiting thread.
- */
-
-struct ttm_fence_driver {
-	bool (*has_irq) (struct ttm_fence_device *fdev,
-			uint32_t fence_class, uint32_t flags);
-	int (*emit) (struct ttm_fence_device *fdev,
-		     uint32_t fence_class,
-		     uint32_t flags,
-		     uint32_t *breadcrumb, unsigned long *timeout_jiffies);
-	void (*flush) (struct ttm_fence_device *fdev, uint32_t fence_class);
-	void (*poll) (struct ttm_fence_device *fdev,
-		      uint32_t fence_class, uint32_t types);
-	 uint32_t(*needed_flush)
-	 (struct ttm_fence_object *fence);
-	int (*wait) (struct ttm_fence_object *fence, bool lazy,
-		     bool interruptible, uint32_t mask);
-	void (*signaled) (struct ttm_fence_object *fence);
-	void (*lockup) (struct ttm_fence_object *fence, uint32_t fence_types);
-};
-
-/**
- * function ttm_fence_device_init
- *
- * @num_classes:      Number of fence classes for this fence implementation.
- * @mem_global:       Pointer to the global memory accounting info.
- * @fdev:             Pointer to an uninitialised struct ttm_fence_device.
- * @init:             Array of initialization info for each fence class.
- * @replicate_init:   Use the first @init initialization info for all classes.
- * @driver:           Driver callbacks.
- *
- * Initialize a struct ttm_fence_driver structure. Returns -ENOMEM if
- * out-of-memory. Otherwise returns 0.
- */
-extern int
-ttm_fence_device_init(int num_classes,
-		      struct ttm_mem_global *mem_glob,
-		      struct ttm_fence_device *fdev,
-		      const struct ttm_fence_class_init *init,
-		      bool replicate_init,
-		      const struct ttm_fence_driver *driver);
-
-/**
- * function ttm_fence_device_release
- *
- * @fdev:             Pointer to the fence device.
- *
- * Release all resources held by a fence device. Note that before
- * this function is called, the caller must have made sure all fence
- * objects belonging to this fence device are completely signaled.
- */
-
-extern void ttm_fence_device_release(struct ttm_fence_device *fdev);
-
-/**
- * ttm_fence_handler - the fence handler.
- *
- * @fdev:        Pointer to the fence device.
- * @fence_class: Fence class that signals.
- * @sequence:    Signaled sequence.
- * @type:        Types that signal.
- * @error:       Error from the engine.
- *
- * This function signals all fences with a sequence previous to the
- * @sequence argument, and belonging to @fence_class. The signaled fence
- * types are provided in @type. If error is non-zero, the error member
- * of the fence with sequence = @sequence is set to @error. This value
- * may be reported back to user-space, indicating, for example an illegal
- * 3D command or illegal mpeg data.
- *
- * This function is typically called from the driver::poll method when the
- * command sequence preceding the fence marker has executed. It should be
- * called with the ttm_fence_class_manager::lock held in write mode and
- * may be called from interrupt context.
- */
-
-extern void
-ttm_fence_handler(struct ttm_fence_device *fdev,
-		  uint32_t fence_class,
-		  uint32_t sequence, uint32_t type, uint32_t error);
-
-/**
- * ttm_fence_driver_from_dev
- *
- * @fdev:        The ttm fence device.
- *
- * Returns a pointer to the fence driver struct.
- */
-
-static inline const struct ttm_fence_driver *ttm_fence_driver_from_dev(
-						struct ttm_fence_device *fdev)
-{
-	return fdev->driver;
-}
-
-/**
- * ttm_fence_driver
- *
- * @fence:        Pointer to a ttm fence object.
- *
- * Returns a pointer to the fence driver struct.
- */
-
-static inline const struct ttm_fence_driver *ttm_fence_driver(struct
-							      ttm_fence_object
-							      *fence)
-{
-	return ttm_fence_driver_from_dev(fence->fdev);
-}
-
-/**
- * ttm_fence_fc
- *
- * @fence:        Pointer to a ttm fence object.
- *
- * Returns a pointer to the struct ttm_fence_class_manager for the
- * fence class of @fence.
- */
-
-static inline struct ttm_fence_class_manager *ttm_fence_fc(struct
-							   ttm_fence_object
-							   *fence)
-{
-	return &fence->fdev->fence_class[fence->fence_class];
-}
-
-#endif
diff --git a/drivers/staging/gma500/psb_ttm_fence_user.c b/drivers/staging/gma500/psb_ttm_fence_user.c
deleted file mode 100644
index 36f974fc607d..000000000000
--- a/drivers/staging/gma500/psb_ttm_fence_user.c
+++ /dev/null
@@ -1,237 +0,0 @@
-/**************************************************************************
- *
- * Copyright (c) 2006-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA
- * All Rights Reserved.
- * Copyright (c) 2009 VMware, Inc., Palo Alto, CA., USA
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- **************************************************************************/
-/*
- * Authors: Thomas Hellstrom <thomas-at-tungstengraphics-dot-com>
- */
-
-#include <drm/drmP.h>
-#include "psb_ttm_fence_user.h"
-#include "ttm/ttm_object.h"
-#include "psb_ttm_fence_driver.h"
-#include "psb_ttm_userobj_api.h"
-
-/**
- * struct ttm_fence_user_object
- *
- * @base:    The base object used for user-space visibility and refcounting.
- *
- * @fence:   The fence object itself.
- *
- */
-
-struct ttm_fence_user_object {
-	struct ttm_base_object base;
-	struct ttm_fence_object fence;
-};
-
-static struct ttm_fence_user_object *ttm_fence_user_object_lookup(
-					struct ttm_object_file *tfile,
-					uint32_t handle)
-{
-	struct ttm_base_object *base;
-
-	base = ttm_base_object_lookup(tfile, handle);
-	if (unlikely(base == NULL)) {
-		printk(KERN_ERR "Invalid fence handle 0x%08lx\n",
-		       (unsigned long)handle);
-		return NULL;
-	}
-
-	if (unlikely(base->object_type != ttm_fence_type)) {
-		ttm_base_object_unref(&base);
-		printk(KERN_ERR "Invalid fence handle 0x%08lx\n",
-		       (unsigned long)handle);
-		return NULL;
-	}
-
-	return container_of(base, struct ttm_fence_user_object, base);
-}
-
-/*
- * The fence object destructor.
- */
-
-static void ttm_fence_user_destroy(struct ttm_fence_object *fence)
-{
-	struct ttm_fence_user_object *ufence =
-	    container_of(fence, struct ttm_fence_user_object, fence);
-
-	ttm_mem_global_free(fence->fdev->mem_glob, sizeof(*ufence));
-	kfree(ufence);
-}
-
-/*
- * The base object destructor. We basically unly unreference the
- * attached fence object.
- */
-
-static void ttm_fence_user_release(struct ttm_base_object **p_base)
-{
-	struct ttm_fence_user_object *ufence;
-	struct ttm_base_object *base = *p_base;
-	struct ttm_fence_object *fence;
-
-	*p_base = NULL;
-
-	if (unlikely(base == NULL))
-		return;
-
-	ufence = container_of(base, struct ttm_fence_user_object, base);
-	fence = &ufence->fence;
-	ttm_fence_object_unref(&fence);
-}
-
-int
-ttm_fence_user_create(struct ttm_fence_device *fdev,
-		      struct ttm_object_file *tfile,
-		      uint32_t fence_class,
-		      uint32_t fence_types,
-		      uint32_t create_flags,
-		      struct ttm_fence_object **fence,
-		      uint32_t *user_handle)
-{
-	int ret;
-	struct ttm_fence_object *tmp;
-	struct ttm_fence_user_object *ufence;
-
-	ret = ttm_mem_global_alloc(fdev->mem_glob,
-				   sizeof(*ufence),
-				   false,
-				   false);
-	if (unlikely(ret != 0))
-		return -ENOMEM;
-
-	ufence = kmalloc(sizeof(*ufence), GFP_KERNEL);
-	if (unlikely(ufence == NULL)) {
-		ttm_mem_global_free(fdev->mem_glob, sizeof(*ufence));
-		return -ENOMEM;
-	}
-
-	ret = ttm_fence_object_init(fdev,
-				    fence_class,
-				    fence_types, create_flags,
-				    &ttm_fence_user_destroy, &ufence->fence);
-
-	if (unlikely(ret != 0))
-		goto out_err0;
-
-	/*
-	 * One fence ref is held by the fence ptr we return.
-	 * The other one by the base object. Need to up the
-	 * fence refcount before we publish this object to
-	 * user-space.
-	 */
-
-	tmp = ttm_fence_object_ref(&ufence->fence);
-	ret = ttm_base_object_init(tfile, &ufence->base,
-				   false, ttm_fence_type,
-				   &ttm_fence_user_release, NULL);
-
-	if (unlikely(ret != 0))
-		goto out_err1;
-
-	*fence = &ufence->fence;
-	*user_handle = ufence->base.hash.key;
-
-	return 0;
-out_err1:
-	ttm_fence_object_unref(&tmp);
-	tmp = &ufence->fence;
-	ttm_fence_object_unref(&tmp);
-	return ret;
-out_err0:
-	ttm_mem_global_free(fdev->mem_glob, sizeof(*ufence));
-	kfree(ufence);
-	return ret;
-}
-
-int ttm_fence_signaled_ioctl(struct ttm_object_file *tfile, void *data)
-{
-	int ret;
-	union ttm_fence_signaled_arg *arg = data;
-	struct ttm_fence_object *fence;
-	struct ttm_fence_info info;
-	struct ttm_fence_user_object *ufence;
-	struct ttm_base_object *base;
-	ret = 0;
-
-	ufence = ttm_fence_user_object_lookup(tfile, arg->req.handle);
-	if (unlikely(ufence == NULL))
-		return -EINVAL;
-
-	fence = &ufence->fence;
-
-	if (arg->req.flush) {
-		ret = ttm_fence_object_flush(fence, arg->req.fence_type);
-		if (unlikely(ret != 0))
-			goto out;
-	}
-
-	info = ttm_fence_get_info(fence);
-	arg->rep.signaled_types = info.signaled_types;
-	arg->rep.fence_error = info.error;
-
-out:
-	base = &ufence->base;
-	ttm_base_object_unref(&base);
-	return ret;
-}
-
-int ttm_fence_finish_ioctl(struct ttm_object_file *tfile, void *data)
-{
-	int ret;
-	union ttm_fence_finish_arg *arg = data;
-	struct ttm_fence_user_object *ufence;
-	struct ttm_base_object *base;
-	struct ttm_fence_object *fence;
-	ret = 0;
-
-	ufence = ttm_fence_user_object_lookup(tfile, arg->req.handle);
-	if (unlikely(ufence == NULL))
-		return -EINVAL;
-
-	fence = &ufence->fence;
-
-	ret = ttm_fence_object_wait(fence,
-				    arg->req.mode & TTM_FENCE_FINISH_MODE_LAZY,
-				    true, arg->req.fence_type);
-	if (likely(ret == 0)) {
-		struct ttm_fence_info info = ttm_fence_get_info(fence);
-
-		arg->rep.signaled_types = info.signaled_types;
-		arg->rep.fence_error = info.error;
-	}
-
-	base = &ufence->base;
-	ttm_base_object_unref(&base);
-
-	return ret;
-}
-
-int ttm_fence_unref_ioctl(struct ttm_object_file *tfile, void *data)
-{
-	struct ttm_fence_unref_arg *arg = data;
-	int ret = 0;
-
-	ret = ttm_ref_object_base_unref(tfile, arg->handle, ttm_fence_type);
-	return ret;
-}
diff --git a/drivers/staging/gma500/psb_ttm_fence_user.h b/drivers/staging/gma500/psb_ttm_fence_user.h
deleted file mode 100644
index 762a05728632..000000000000
--- a/drivers/staging/gma500/psb_ttm_fence_user.h
+++ /dev/null
@@ -1,140 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2006-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA
- * All Rights Reserved.
- * Copyright (c) 2009 VMware, Inc., Palo Alto, CA., USA
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- **************************************************************************/
-/*
- * Authors
- * Thomas Hellström <thomas-at-tungstengraphics-dot-com>
- */
-
-#ifndef TTM_FENCE_USER_H
-#define TTM_FENCE_USER_H
-
-#if !defined(__KERNEL__) && !defined(_KERNEL)
-#include <stdint.h>
-#endif
-
-#define TTM_FENCE_MAJOR 0
-#define TTM_FENCE_MINOR 1
-#define TTM_FENCE_PL    0
-#define TTM_FENCE_DATE  "080819"
-
-/**
- * struct ttm_fence_signaled_req
- *
- * @handle: Handle to the fence object. Input.
- *
- * @fence_type: Fence types we want to flush. Input.
- *
- * @flush: Boolean. Flush the indicated fence_types. Input.
- *
- * Argument to the TTM_FENCE_SIGNALED ioctl.
- */
-
-struct ttm_fence_signaled_req {
-	uint32_t handle;
-	uint32_t fence_type;
-	int32_t flush;
-	uint32_t pad64;
-};
-
-/**
- * struct ttm_fence_rep
- *
- * @signaled_types: Fence type that has signaled.
- *
- * @fence_error: Command execution error.
- * Hardware errors that are consequences of the execution
- * of the command stream preceding the fence are reported
- * here.
- *
- * Output argument to the TTM_FENCE_SIGNALED and
- * TTM_FENCE_FINISH ioctls.
- */
-
-struct ttm_fence_rep {
-	uint32_t signaled_types;
-	uint32_t fence_error;
-};
-
-union ttm_fence_signaled_arg {
-	struct ttm_fence_signaled_req req;
-	struct ttm_fence_rep rep;
-};
-
-/*
- * Waiting mode flags for the TTM_FENCE_FINISH ioctl.
- *
- * TTM_FENCE_FINISH_MODE_LAZY: Allow for sleeps during polling
- * wait.
- *
- * TTM_FENCE_FINISH_MODE_NO_BLOCK: Don't block waiting for GPU,
- * but return -EBUSY if the buffer is busy.
- */
-
-#define TTM_FENCE_FINISH_MODE_LAZY     (1 << 0)
-#define TTM_FENCE_FINISH_MODE_NO_BLOCK (1 << 1)
-
-/**
- * struct ttm_fence_finish_req
- *
- * @handle: Handle to the fence object. Input.
- *
- * @fence_type: Fence types we want to finish.
- *
- * @mode: Wait mode.
- *
- * Input to the TTM_FENCE_FINISH ioctl.
- */
-
-struct ttm_fence_finish_req {
-	uint32_t handle;
-	uint32_t fence_type;
-	uint32_t mode;
-	uint32_t pad64;
-};
-
-union ttm_fence_finish_arg {
-	struct ttm_fence_finish_req req;
-	struct ttm_fence_rep rep;
-};
-
-/**
- * struct ttm_fence_unref_arg
- *
- * @handle: Handle to the fence object.
- *
- * Argument to the TTM_FENCE_UNREF ioctl.
- */
-
-struct ttm_fence_unref_arg {
-	uint32_t handle;
-	uint32_t pad64;
-};
-
-/*
- * Ioctl offsets from extenstion start.
- */
-
-#define TTM_FENCE_SIGNALED 0x01
-#define TTM_FENCE_FINISH   0x02
-#define TTM_FENCE_UNREF    0x03
-
-#endif
diff --git a/drivers/staging/gma500/psb_ttm_glue.c b/drivers/staging/gma500/psb_ttm_glue.c
deleted file mode 100644
index d1d965e69ecd..000000000000
--- a/drivers/staging/gma500/psb_ttm_glue.c
+++ /dev/null
@@ -1,349 +0,0 @@
-/**************************************************************************
- * Copyright (c) 2008, Intel Corporation.
- * All Rights Reserved.
- * Copyright (c) 2008, Tungsten Graphics Inc.  Cedar Park, TX., USA.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- **************************************************************************/
-
-
-#include <drm/drmP.h>
-#include "psb_drv.h"
-#include "psb_ttm_userobj_api.h"
-#include <linux/io.h>
-
-
-static struct vm_operations_struct psb_ttm_vm_ops;
-
-/**
- * NOTE: driver_private of drm_file is now a struct psb_file_data struct
- * pPriv in struct psb_file_data contains the original psb_fpriv;
- */
-int psb_open(struct inode *inode, struct file *filp)
-{
-	struct drm_file *file_priv;
-	struct drm_psb_private *dev_priv;
-	struct psb_fpriv *psb_fp;
-	struct psb_file_data *pvr_file_priv;
-	int ret;
-
-	DRM_DEBUG("\n");
-
-	ret = drm_open(inode, filp);
-	if (unlikely(ret))
-		return ret;
-
-	psb_fp = kzalloc(sizeof(*psb_fp), GFP_KERNEL);
-
-	if (unlikely(psb_fp == NULL))
-		goto out_err0;
-
-	file_priv = (struct drm_file *) filp->private_data;
-	dev_priv = psb_priv(file_priv->minor->dev);
-
-	DRM_DEBUG("is_master %d\n", file_priv->is_master ? 1 : 0);
-
-	psb_fp->tfile = ttm_object_file_init(dev_priv->tdev,
-					     PSB_FILE_OBJECT_HASH_ORDER);
-	if (unlikely(psb_fp->tfile == NULL))
-		goto out_err1;
-
-	pvr_file_priv = (struct psb_file_data *)file_priv->driver_priv;
-	if (!pvr_file_priv) {
-		DRM_ERROR("drm file private is NULL\n");
-		goto out_err1;
-	}
-
-	pvr_file_priv->priv = psb_fp;
-	if (unlikely(dev_priv->bdev.dev_mapping == NULL))
-		dev_priv->bdev.dev_mapping = dev_priv->dev->dev_mapping;
-
-	return 0;
-
-out_err1:
-	kfree(psb_fp);
-out_err0:
-	(void) drm_release(inode, filp);
-	return ret;
-}
-
-int psb_release(struct inode *inode, struct file *filp)
-{
-	struct drm_file *file_priv;
-	struct psb_fpriv *psb_fp;
-	struct drm_psb_private *dev_priv;
-	int ret;
-	file_priv = (struct drm_file *) filp->private_data;
-	psb_fp = psb_fpriv(file_priv);
-	dev_priv = psb_priv(file_priv->minor->dev);
-
-	ttm_object_file_release(&psb_fp->tfile);
-	kfree(psb_fp);
-
-	ret = drm_release(inode, filp);
-
-	return ret;
-}
-
-int psb_fence_signaled_ioctl(struct drm_device *dev, void *data,
-			     struct drm_file *file_priv)
-{
-
-	return ttm_fence_signaled_ioctl(psb_fpriv(file_priv)->tfile, data);
-}
-
-int psb_fence_finish_ioctl(struct drm_device *dev, void *data,
-			   struct drm_file *file_priv)
-{
-	return ttm_fence_finish_ioctl(psb_fpriv(file_priv)->tfile, data);
-}
-
-int psb_fence_unref_ioctl(struct drm_device *dev, void *data,
-			  struct drm_file *file_priv)
-{
-	return ttm_fence_unref_ioctl(psb_fpriv(file_priv)->tfile, data);
-}
-
-int psb_pl_waitidle_ioctl(struct drm_device *dev, void *data,
-			  struct drm_file *file_priv)
-{
-	return ttm_pl_waitidle_ioctl(psb_fpriv(file_priv)->tfile, data);
-}
-
-int psb_pl_setstatus_ioctl(struct drm_device *dev, void *data,
-			   struct drm_file *file_priv)
-{
-	return ttm_pl_setstatus_ioctl(psb_fpriv(file_priv)->tfile,
-				      &psb_priv(dev)->ttm_lock, data);
-
-}
-
-int psb_pl_synccpu_ioctl(struct drm_device *dev, void *data,
-			 struct drm_file *file_priv)
-{
-	return ttm_pl_synccpu_ioctl(psb_fpriv(file_priv)->tfile, data);
-}
-
-int psb_pl_unref_ioctl(struct drm_device *dev, void *data,
-		       struct drm_file *file_priv)
-{
-	return ttm_pl_unref_ioctl(psb_fpriv(file_priv)->tfile, data);
-
-}
-
-int psb_pl_reference_ioctl(struct drm_device *dev, void *data,
-			   struct drm_file *file_priv)
-{
-	return  ttm_pl_reference_ioctl(psb_fpriv(file_priv)->tfile, data);
-
-}
-
-int psb_pl_create_ioctl(struct drm_device *dev, void *data,
-			struct drm_file *file_priv)
-{
-	struct drm_psb_private *dev_priv = psb_priv(dev);
-
-	return ttm_pl_create_ioctl(psb_fpriv(file_priv)->tfile,
-				   &dev_priv->bdev, &dev_priv->ttm_lock, data);
-
-}
-
-int psb_pl_ub_create_ioctl(struct drm_device *dev, void *data,
-			struct drm_file *file_priv)
-{
-	struct drm_psb_private *dev_priv = psb_priv(dev);
-
-	return ttm_pl_ub_create_ioctl(psb_fpriv(file_priv)->tfile,
-				   &dev_priv->bdev, &dev_priv->ttm_lock, data);
-
-}
-/**
- * psb_ttm_fault - Wrapper around the ttm fault method.
- *
- * @vma: The struct vm_area_struct as in the vm fault() method.
- * @vmf: The struct vm_fault as in the vm fault() method.
- *
- * Since ttm_fault() will reserve buffers while faulting,
- * we need to take the ttm read lock around it, as this driver
- * relies on the ttm_lock in write mode to exclude all threads from
- * reserving and thus validating buffers in aperture- and memory shortage
- * situations.
- */
-
-static int psb_ttm_fault(struct vm_area_struct *vma,
-			 struct vm_fault *vmf)
-{
-	struct ttm_buffer_object *bo = (struct ttm_buffer_object *)
-		vma->vm_private_data;
-	struct drm_psb_private *dev_priv =
-		container_of(bo->bdev, struct drm_psb_private, bdev);
-	int ret;
-
-	ret = ttm_read_lock(&dev_priv->ttm_lock, true);
-	if (unlikely(ret != 0))
-		return VM_FAULT_NOPAGE;
-
-	ret = dev_priv->ttm_vm_ops->fault(vma, vmf);
-
-	ttm_read_unlock(&dev_priv->ttm_lock);
-	return ret;
-}
-
-/**
- * if vm_pgoff < DRM_PSB_FILE_PAGE_OFFSET call directly to
- * PVRMMap
- */
-int psb_mmap(struct file *filp, struct vm_area_struct *vma)
-{
-	struct drm_file *file_priv;
-	struct drm_psb_private *dev_priv;
-	int ret;
-
-	if (vma->vm_pgoff < DRM_PSB_FILE_PAGE_OFFSET ||
-	    vma->vm_pgoff > 2 * DRM_PSB_FILE_PAGE_OFFSET)
-#if 0		/* FIXMEAC */
-		return PVRMMap(filp, vma);
-#else
-		return -EINVAL;
-#endif
-
-	file_priv = (struct drm_file *) filp->private_data;
-	dev_priv = psb_priv(file_priv->minor->dev);
-
-	ret = ttm_bo_mmap(filp, vma, &dev_priv->bdev);
-	if (unlikely(ret != 0))
-		return ret;
-
-	if (unlikely(dev_priv->ttm_vm_ops == NULL)) {
-		dev_priv->ttm_vm_ops = (struct vm_operations_struct *)
-								vma->vm_ops;
-		psb_ttm_vm_ops = *vma->vm_ops;
-		psb_ttm_vm_ops.fault = &psb_ttm_fault;
-	}
-
-	vma->vm_ops = &psb_ttm_vm_ops;
-
-	return 0;
-}
-/*
-ssize_t psb_ttm_write(struct file *filp, const char __user *buf,
-		      size_t count, loff_t *f_pos)
-{
-	struct drm_file *file_priv = (struct drm_file *)filp->private_data;
-	struct drm_psb_private *dev_priv = psb_priv(file_priv->minor->dev);
-
-	return ttm_bo_io(&dev_priv->bdev, filp, buf, NULL, count, f_pos, 1);
-}
-
-ssize_t psb_ttm_read(struct file *filp, char __user *buf,
-		     size_t count, loff_t *f_pos)
-{
-	struct drm_file *file_priv = (struct drm_file *)filp->private_data;
-	struct drm_psb_private *dev_priv = psb_priv(file_priv->minor->dev);
-
-	return ttm_bo_io(&dev_priv->bdev, filp, NULL, buf, count, f_pos, 1);
-}
-*/
-int psb_verify_access(struct ttm_buffer_object *bo,
-		      struct file *filp)
-{
-	struct drm_file *file_priv = (struct drm_file *)filp->private_data;
-
-	if (capable(CAP_SYS_ADMIN))
-		return 0;
-
-	if (unlikely(!file_priv->authenticated))
-		return -EPERM;
-
-	return ttm_pl_verify_access(bo, psb_fpriv(file_priv)->tfile);
-}
-
-static int psb_ttm_mem_global_init(struct drm_global_reference *ref)
-{
-	return ttm_mem_global_init(ref->object);
-}
-
-static void psb_ttm_mem_global_release(struct drm_global_reference *ref)
-{
-	ttm_mem_global_release(ref->object);
-}
-
-int psb_ttm_global_init(struct drm_psb_private *dev_priv)
-{
-	struct drm_global_reference *global_ref;
-	int ret;
-
-	global_ref = &dev_priv->mem_global_ref;
-	global_ref->global_type = DRM_GLOBAL_TTM_MEM;
-	global_ref->size = sizeof(struct ttm_mem_global);
-	global_ref->init = &psb_ttm_mem_global_init;
-	global_ref->release = &psb_ttm_mem_global_release;
-
-	ret = drm_global_item_ref(global_ref);
-	if (unlikely(ret != 0)) {
-		DRM_ERROR("Failed referencing a global TTM memory object.\n");
-		return ret;
-	}
-
-	dev_priv->bo_global_ref.mem_glob = dev_priv->mem_global_ref.object;
-	global_ref = &dev_priv->bo_global_ref.ref;
-	global_ref->global_type = DRM_GLOBAL_TTM_BO;
-	global_ref->size = sizeof(struct ttm_bo_global);
-	global_ref->init = &ttm_bo_global_init;
-	global_ref->release = &ttm_bo_global_release;
-	ret = drm_global_item_ref(global_ref);
-	if (ret != 0) {
-		DRM_ERROR("Failed setting up TTM BO subsystem.\n");
-		drm_global_item_unref(global_ref);
-		return ret;
-	}
-	return 0;
-}
-
-void psb_ttm_global_release(struct drm_psb_private *dev_priv)
-{
-	drm_global_item_unref(&dev_priv->mem_global_ref);
-}
-
-int psb_getpageaddrs_ioctl(struct drm_device *dev, void *data,
-		struct drm_file *file_priv)
-{
-	struct drm_psb_getpageaddrs_arg *arg = data;
-	struct ttm_buffer_object *bo;
-	struct ttm_tt *ttm;
-	struct page **tt_pages;
-	unsigned long i, num_pages;
-	unsigned long *p = arg->page_addrs;
-	int ret = 0;
-
-	bo = ttm_buffer_object_lookup(psb_fpriv(file_priv)->tfile,
-					arg->handle);
-	if (unlikely(bo == NULL)) {
-		printk(KERN_ERR
-			"Could not find buffer object for getpageaddrs.\n");
-		return -EINVAL;
-	}
-
-	arg->gtt_offset = bo->offset;
-	ttm = bo->ttm;
-	num_pages = ttm->num_pages;
-	tt_pages = ttm->pages;
-
-	for (i = 0; i < num_pages; i++)
-		p[i] = (unsigned long)page_to_phys(tt_pages[i]);
-
-	return ret;
-}
diff --git a/drivers/staging/gma500/psb_ttm_placement_user.c b/drivers/staging/gma500/psb_ttm_placement_user.c
deleted file mode 100644
index 272b397982ed..000000000000
--- a/drivers/staging/gma500/psb_ttm_placement_user.c
+++ /dev/null
@@ -1,628 +0,0 @@
-/**************************************************************************
- *
- * Copyright (c) 2006-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- **************************************************************************/
-/*
- * Authors: Thomas Hellstrom <thomas-at-tungstengraphics-dot-com>
- */
-
-#include "psb_ttm_placement_user.h"
-#include "ttm/ttm_bo_driver.h"
-#include "ttm/ttm_object.h"
-#include "psb_ttm_userobj_api.h"
-#include "ttm/ttm_lock.h"
-#include <linux/slab.h>
-#include <linux/sched.h>
-
-struct ttm_bo_user_object {
-	struct ttm_base_object base;
-	struct ttm_buffer_object bo;
-};
-
-static size_t pl_bo_size;
-
-static uint32_t psb_busy_prios[] = {
-	TTM_PL_TT,
-	TTM_PL_PRIV0, /* CI */
-	TTM_PL_PRIV2, /* RAR */
-	TTM_PL_PRIV1, /* DRM_PSB_MEM_MMU */
-	TTM_PL_SYSTEM
-};
-
-static const struct ttm_placement default_placement = {
-				0, 0, 0, NULL, 5, psb_busy_prios
-};
-
-static size_t ttm_pl_size(struct ttm_bo_device *bdev, unsigned long num_pages)
-{
-	size_t page_array_size =
-	    (num_pages * sizeof(void *) + PAGE_SIZE - 1) & PAGE_MASK;
-
-	if (unlikely(pl_bo_size == 0)) {
-		pl_bo_size = bdev->glob->ttm_bo_extra_size +
-		    ttm_round_pot(sizeof(struct ttm_bo_user_object));
-	}
-
-	return bdev->glob->ttm_bo_size + 2 * page_array_size;
-}
-
-static struct ttm_bo_user_object *ttm_bo_user_lookup(struct ttm_object_file
-						     *tfile, uint32_t handle)
-{
-	struct ttm_base_object *base;
-
-	base = ttm_base_object_lookup(tfile, handle);
-	if (unlikely(base == NULL)) {
-		printk(KERN_ERR "Invalid buffer object handle 0x%08lx.\n",
-		       (unsigned long)handle);
-		return NULL;
-	}
-
-	if (unlikely(base->object_type != ttm_buffer_type)) {
-		ttm_base_object_unref(&base);
-		printk(KERN_ERR "Invalid buffer object handle 0x%08lx.\n",
-		       (unsigned long)handle);
-		return NULL;
-	}
-
-	return container_of(base, struct ttm_bo_user_object, base);
-}
-
-struct ttm_buffer_object *ttm_buffer_object_lookup(struct ttm_object_file
-						   *tfile, uint32_t handle)
-{
-	struct ttm_bo_user_object *user_bo;
-	struct ttm_base_object *base;
-
-	user_bo = ttm_bo_user_lookup(tfile, handle);
-	if (unlikely(user_bo == NULL))
-		return NULL;
-
-	(void)ttm_bo_reference(&user_bo->bo);
-	base = &user_bo->base;
-	ttm_base_object_unref(&base);
-	return &user_bo->bo;
-}
-
-static void ttm_bo_user_destroy(struct ttm_buffer_object *bo)
-{
-	struct ttm_bo_user_object *user_bo =
-	    container_of(bo, struct ttm_bo_user_object, bo);
-
-	ttm_mem_global_free(bo->glob->mem_glob, bo->acc_size);
-	kfree(user_bo);
-}
-
-static void ttm_bo_user_release(struct ttm_base_object **p_base)
-{
-	struct ttm_bo_user_object *user_bo;
-	struct ttm_base_object *base = *p_base;
-	struct ttm_buffer_object *bo;
-
-	*p_base = NULL;
-
-	if (unlikely(base == NULL))
-		return;
-
-	user_bo = container_of(base, struct ttm_bo_user_object, base);
-	bo = &user_bo->bo;
-	ttm_bo_unref(&bo);
-}
-
-static void ttm_bo_user_ref_release(struct ttm_base_object *base,
-				    enum ttm_ref_type ref_type)
-{
-	struct ttm_bo_user_object *user_bo =
-	    container_of(base, struct ttm_bo_user_object, base);
-	struct ttm_buffer_object *bo = &user_bo->bo;
-
-	switch (ref_type) {
-	case TTM_REF_SYNCCPU_WRITE:
-		ttm_bo_synccpu_write_release(bo);
-		break;
-	default:
-		BUG();
-	}
-}
-
-static void ttm_pl_fill_rep(struct ttm_buffer_object *bo,
-			    struct ttm_pl_rep *rep)
-{
-	struct ttm_bo_user_object *user_bo =
-	    container_of(bo, struct ttm_bo_user_object, bo);
-
-	rep->gpu_offset = bo->offset;
-	rep->bo_size = bo->num_pages << PAGE_SHIFT;
-	rep->map_handle = bo->addr_space_offset;
-	rep->placement = bo->mem.placement;
-	rep->handle = user_bo->base.hash.key;
-	rep->sync_object_arg = (uint32_t) (unsigned long)bo->sync_obj_arg;
-}
-
-/* FIXME Copy from upstream TTM */
-static inline size_t ttm_bo_size(struct ttm_bo_global *glob,
-				 unsigned long num_pages)
-{
-	size_t page_array_size = (num_pages * sizeof(void *) + PAGE_SIZE - 1) &
-	    PAGE_MASK;
-
-	return glob->ttm_bo_size + 2 * page_array_size;
-}
-
-/* FIXME Copy from upstream TTM "ttm_bo_create", upstream TTM does not
-   export this, so copy it here */
-static int ttm_bo_create_private(struct ttm_bo_device *bdev,
-			unsigned long size,
-			enum ttm_bo_type type,
-			struct ttm_placement *placement,
-			uint32_t page_alignment,
-			unsigned long buffer_start,
-			bool interruptible,
-			struct file *persistant_swap_storage,
-			struct ttm_buffer_object **p_bo)
-{
-	struct ttm_buffer_object *bo;
-	struct ttm_mem_global *mem_glob = bdev->glob->mem_glob;
-	int ret;
-
-	size_t acc_size =
-	    ttm_bo_size(bdev->glob, (size + PAGE_SIZE - 1) >> PAGE_SHIFT);
-	ret = ttm_mem_global_alloc(mem_glob, acc_size, false, false);
-	if (unlikely(ret != 0))
-		return ret;
-
-	bo = kzalloc(sizeof(*bo), GFP_KERNEL);
-
-	if (unlikely(bo == NULL)) {
-		ttm_mem_global_free(mem_glob, acc_size);
-		return -ENOMEM;
-	}
-
-	ret = ttm_bo_init(bdev, bo, size, type, placement, page_alignment,
-				buffer_start, interruptible,
-				persistant_swap_storage, acc_size, NULL);
-	if (likely(ret == 0))
-		*p_bo = bo;
-
-	return ret;
-}
-
-int psb_ttm_bo_check_placement(struct ttm_buffer_object *bo,
-				struct ttm_placement *placement)
-{
-	int i;
-
-	for (i = 0; i < placement->num_placement; i++) {
-		if (!capable(CAP_SYS_ADMIN)) {
-			if (placement->placement[i] & TTM_PL_FLAG_NO_EVICT) {
-				printk(KERN_ERR TTM_PFX "Need to be root to "
-					"modify NO_EVICT status.\n");
-				return -EINVAL;
-			}
-		}
-	}
-	for (i = 0; i < placement->num_busy_placement; i++) {
-		if (!capable(CAP_SYS_ADMIN)) {
-			if (placement->busy_placement[i]
-						& TTM_PL_FLAG_NO_EVICT) {
-				printk(KERN_ERR TTM_PFX "Need to be root to modify NO_EVICT status.\n");
-				return -EINVAL;
-			}
-		}
-	}
-	return 0;
-}
-
-int ttm_buffer_object_create(struct ttm_bo_device *bdev,
-			unsigned long size,
-			enum ttm_bo_type type,
-			uint32_t flags,
-			uint32_t page_alignment,
-			unsigned long buffer_start,
-			bool interruptible,
-			struct file *persistant_swap_storage,
-			struct ttm_buffer_object **p_bo)
-{
-	struct ttm_placement placement = default_placement;
-	int ret;
-
-	if ((flags & TTM_PL_MASK_CACHING) == 0)
-		flags |= TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED;
-
-	placement.num_placement = 1;
-	placement.placement = &flags;
-
-	ret = ttm_bo_create_private(bdev,
-			size,
-			type,
-			&placement,
-			page_alignment,
-			buffer_start,
-			interruptible,
-			persistant_swap_storage,
-			p_bo);
-
-	return ret;
-}
-
-
-int ttm_pl_create_ioctl(struct ttm_object_file *tfile,
-			struct ttm_bo_device *bdev,
-			struct ttm_lock *lock, void *data)
-{
-	union ttm_pl_create_arg *arg = data;
-	struct ttm_pl_create_req *req = &arg->req;
-	struct ttm_pl_rep *rep = &arg->rep;
-	struct ttm_buffer_object *bo;
-	struct ttm_buffer_object *tmp;
-	struct ttm_bo_user_object *user_bo;
-	uint32_t flags;
-	int ret = 0;
-	struct ttm_mem_global *mem_glob = bdev->glob->mem_glob;
-	struct ttm_placement placement = default_placement;
-	size_t acc_size =
-	    ttm_pl_size(bdev, (req->size + PAGE_SIZE - 1) >> PAGE_SHIFT);
-	ret = ttm_mem_global_alloc(mem_glob, acc_size, false, false);
-	if (unlikely(ret != 0))
-		return ret;
-
-	flags = req->placement;
-	user_bo = kzalloc(sizeof(*user_bo), GFP_KERNEL);
-	if (unlikely(user_bo == NULL)) {
-		ttm_mem_global_free(mem_glob, acc_size);
-		return -ENOMEM;
-	}
-
-	bo = &user_bo->bo;
-	ret = ttm_read_lock(lock, true);
-	if (unlikely(ret != 0)) {
-		ttm_mem_global_free(mem_glob, acc_size);
-		kfree(user_bo);
-		return ret;
-	}
-
-	placement.num_placement = 1;
-	placement.placement = &flags;
-
-	if ((flags & TTM_PL_MASK_CACHING) == 0)
-		flags |=  TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED;
-
-	ret = ttm_bo_init(bdev, bo, req->size,
-				     ttm_bo_type_device, &placement,
-				     req->page_alignment, 0, true,
-				     NULL, acc_size, &ttm_bo_user_destroy);
-	ttm_read_unlock(lock);
-
-	/*
-	 * Note that the ttm_buffer_object_init function
-	 * would've called the destroy function on failure!!
-	 */
-
-	if (unlikely(ret != 0))
-		goto out;
-
-	tmp = ttm_bo_reference(bo);
-	ret = ttm_base_object_init(tfile, &user_bo->base,
-				   flags & TTM_PL_FLAG_SHARED,
-				   ttm_buffer_type,
-				   &ttm_bo_user_release,
-				   &ttm_bo_user_ref_release);
-	if (unlikely(ret != 0))
-		goto out_err;
-
-	ttm_pl_fill_rep(bo, rep);
-	ttm_bo_unref(&bo);
-out:
-	return 0;
-out_err:
-	ttm_bo_unref(&tmp);
-	ttm_bo_unref(&bo);
-	return ret;
-}
-
-int ttm_pl_ub_create_ioctl(struct ttm_object_file *tfile,
-			   struct ttm_bo_device *bdev,
-			   struct ttm_lock *lock, void *data)
-{
-	union ttm_pl_create_ub_arg *arg = data;
-	struct ttm_pl_create_ub_req *req = &arg->req;
-	struct ttm_pl_rep *rep = &arg->rep;
-	struct ttm_buffer_object *bo;
-	struct ttm_buffer_object *tmp;
-	struct ttm_bo_user_object *user_bo;
-	uint32_t flags;
-	int ret = 0;
-	struct ttm_mem_global *mem_glob = bdev->glob->mem_glob;
-	struct ttm_placement placement = default_placement;
-	size_t acc_size =
-	    ttm_pl_size(bdev, (req->size + PAGE_SIZE - 1) >> PAGE_SHIFT);
-	ret = ttm_mem_global_alloc(mem_glob, acc_size, false, false);
-	if (unlikely(ret != 0))
-		return ret;
-
-	flags = req->placement;
-	user_bo = kzalloc(sizeof(*user_bo), GFP_KERNEL);
-	if (unlikely(user_bo == NULL)) {
-		ttm_mem_global_free(mem_glob, acc_size);
-		return -ENOMEM;
-	}
-	ret = ttm_read_lock(lock, true);
-	if (unlikely(ret != 0)) {
-		ttm_mem_global_free(mem_glob, acc_size);
-		kfree(user_bo);
-		return ret;
-	}
-	bo = &user_bo->bo;
-
-	placement.num_placement = 1;
-	placement.placement = &flags;
-
-	ret = ttm_bo_init(bdev,
-					bo,
-					req->size,
-					ttm_bo_type_user,
-					&placement,
-					req->page_alignment,
-					req->user_address,
-					true,
-					NULL,
-					acc_size,
-					&ttm_bo_user_destroy);
-
-	/*
-	 * Note that the ttm_buffer_object_init function
-	 * would've called the destroy function on failure!!
-	 */
-	ttm_read_unlock(lock);
-	if (unlikely(ret != 0))
-		goto out;
-
-	tmp = ttm_bo_reference(bo);
-	ret = ttm_base_object_init(tfile, &user_bo->base,
-				   flags & TTM_PL_FLAG_SHARED,
-				   ttm_buffer_type,
-				   &ttm_bo_user_release,
-				   &ttm_bo_user_ref_release);
-	if (unlikely(ret != 0))
-		goto out_err;
-
-	ttm_pl_fill_rep(bo, rep);
-	ttm_bo_unref(&bo);
-out:
-	return 0;
-out_err:
-	ttm_bo_unref(&tmp);
-	ttm_bo_unref(&bo);
-	return ret;
-}
-
-int ttm_pl_reference_ioctl(struct ttm_object_file *tfile, void *data)
-{
-	union ttm_pl_reference_arg *arg = data;
-	struct ttm_pl_rep *rep = &arg->rep;
-	struct ttm_bo_user_object *user_bo;
-	struct ttm_buffer_object *bo;
-	struct ttm_base_object *base;
-	int ret;
-
-	user_bo = ttm_bo_user_lookup(tfile, arg->req.handle);
-	if (unlikely(user_bo == NULL)) {
-		printk(KERN_ERR "Could not reference buffer object.\n");
-		return -EINVAL;
-	}
-
-	bo = &user_bo->bo;
-	ret = ttm_ref_object_add(tfile, &user_bo->base, TTM_REF_USAGE, NULL);
-	if (unlikely(ret != 0)) {
-		printk(KERN_ERR
-		       "Could not add a reference to buffer object.\n");
-		goto out;
-	}
-
-	ttm_pl_fill_rep(bo, rep);
-
-out:
-	base = &user_bo->base;
-	ttm_base_object_unref(&base);
-	return ret;
-}
-
-int ttm_pl_unref_ioctl(struct ttm_object_file *tfile, void *data)
-{
-	struct ttm_pl_reference_req *arg = data;
-
-	return ttm_ref_object_base_unref(tfile, arg->handle, TTM_REF_USAGE);
-}
-
-int ttm_pl_synccpu_ioctl(struct ttm_object_file *tfile, void *data)
-{
-	struct ttm_pl_synccpu_arg *arg = data;
-	struct ttm_bo_user_object *user_bo;
-	struct ttm_buffer_object *bo;
-	struct ttm_base_object *base;
-	bool existed;
-	int ret;
-
-	switch (arg->op) {
-	case TTM_PL_SYNCCPU_OP_GRAB:
-		user_bo = ttm_bo_user_lookup(tfile, arg->handle);
-		if (unlikely(user_bo == NULL)) {
-			printk(KERN_ERR
-			       "Could not find buffer object for synccpu.\n");
-			return -EINVAL;
-		}
-		bo = &user_bo->bo;
-		base = &user_bo->base;
-		ret = ttm_bo_synccpu_write_grab(bo,
-						arg->access_mode &
-						TTM_PL_SYNCCPU_MODE_NO_BLOCK);
-		if (unlikely(ret != 0)) {
-			ttm_base_object_unref(&base);
-			goto out;
-		}
-		ret = ttm_ref_object_add(tfile, &user_bo->base,
-					 TTM_REF_SYNCCPU_WRITE, &existed);
-		if (existed || ret != 0)
-			ttm_bo_synccpu_write_release(bo);
-		ttm_base_object_unref(&base);
-		break;
-	case TTM_PL_SYNCCPU_OP_RELEASE:
-		ret = ttm_ref_object_base_unref(tfile, arg->handle,
-						TTM_REF_SYNCCPU_WRITE);
-		break;
-	default:
-		ret = -EINVAL;
-		break;
-	}
-out:
-	return ret;
-}
-
-int ttm_pl_setstatus_ioctl(struct ttm_object_file *tfile,
-			   struct ttm_lock *lock, void *data)
-{
-	union ttm_pl_setstatus_arg *arg = data;
-	struct ttm_pl_setstatus_req *req = &arg->req;
-	struct ttm_pl_rep *rep = &arg->rep;
-	struct ttm_buffer_object *bo;
-	struct ttm_bo_device *bdev;
-	struct ttm_placement placement = default_placement;
-	uint32_t flags[2];
-	int ret;
-
-	bo = ttm_buffer_object_lookup(tfile, req->handle);
-	if (unlikely(bo == NULL)) {
-		printk(KERN_ERR
-		       "Could not find buffer object for setstatus.\n");
-		return -EINVAL;
-	}
-
-	bdev = bo->bdev;
-
-	ret = ttm_read_lock(lock, true);
-	if (unlikely(ret != 0))
-		goto out_err0;
-
-	ret = ttm_bo_reserve(bo, true, false, false, 0);
-	if (unlikely(ret != 0))
-		goto out_err1;
-
-	ret = ttm_bo_wait_cpu(bo, false);
-	if (unlikely(ret != 0))
-		goto out_err2;
-
-	flags[0] = req->set_placement;
-	flags[1] = req->clr_placement;
-
-	placement.num_placement = 2;
-	placement.placement = flags;
-
-	/* Review internal locking ? FIXMEAC */
-	ret = psb_ttm_bo_check_placement(bo, &placement);
-	if (unlikely(ret != 0))
-		goto out_err2;
-
-	placement.num_placement = 1;
-	flags[0] = (req->set_placement | bo->mem.placement)
-						& ~req->clr_placement;
-
-	ret = ttm_bo_validate(bo, &placement, true, false, false);
-	if (unlikely(ret != 0))
-		goto out_err2;
-
-	ttm_pl_fill_rep(bo, rep);
-out_err2:
-	ttm_bo_unreserve(bo);
-out_err1:
-	ttm_read_unlock(lock);
-out_err0:
-	ttm_bo_unref(&bo);
-	return ret;
-}
-
-static int psb_ttm_bo_block_reservation(struct ttm_buffer_object *bo,
-				bool interruptible, bool no_wait)
-{
-	int ret;
-
-	while (unlikely(atomic_cmpxchg(&bo->reserved, 0, 1) != 0)) {
-		if (no_wait)
-			return -EBUSY;
-		else if (interruptible) {
-			ret = wait_event_interruptible(bo->event_queue,
-					atomic_read(&bo->reserved) == 0);
-			if (unlikely(ret != 0))
-				return -ERESTART;
-		} else {
-			wait_event(bo->event_queue,
-				atomic_read(&bo->reserved) == 0);
-		}
-	}
-	return 0;
-}
-
-static void psb_ttm_bo_unblock_reservation(struct ttm_buffer_object *bo)
-{
-	atomic_set(&bo->reserved, 0);
-	wake_up_all(&bo->event_queue);
-}
-
-int ttm_pl_waitidle_ioctl(struct ttm_object_file *tfile, void *data)
-{
-	struct ttm_pl_waitidle_arg *arg = data;
-	struct ttm_buffer_object *bo;
-	int ret;
-
-	bo = ttm_buffer_object_lookup(tfile, arg->handle);
-	if (unlikely(bo == NULL)) {
-		printk(KERN_ERR "Could not find buffer object for waitidle.\n");
-		return -EINVAL;
-	}
-
-	ret =
-	    psb_ttm_bo_block_reservation(bo, true,
-				     arg->mode & TTM_PL_WAITIDLE_MODE_NO_BLOCK);
-	if (unlikely(ret != 0))
-		goto out;
-	ret = ttm_bo_wait(bo,
-			  arg->mode & TTM_PL_WAITIDLE_MODE_LAZY,
-			  true, arg->mode & TTM_PL_WAITIDLE_MODE_NO_BLOCK);
-	psb_ttm_bo_unblock_reservation(bo);
-out:
-	ttm_bo_unref(&bo);
-	return ret;
-}
-
-int ttm_pl_verify_access(struct ttm_buffer_object *bo,
-			 struct ttm_object_file *tfile)
-{
-	struct ttm_bo_user_object *ubo;
-
-	/*
-	 * Check bo subclass.
-	 */
-
-	if (unlikely(bo->destroy != &ttm_bo_user_destroy))
-		return -EPERM;
-
-	ubo = container_of(bo, struct ttm_bo_user_object, bo);
-	if (likely(ubo->base.shareable || ubo->base.tfile == tfile))
-		return 0;
-
-	return -EPERM;
-}
diff --git a/drivers/staging/gma500/psb_ttm_placement_user.h b/drivers/staging/gma500/psb_ttm_placement_user.h
deleted file mode 100644
index 8b7068b54441..000000000000
--- a/drivers/staging/gma500/psb_ttm_placement_user.h
+++ /dev/null
@@ -1,252 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2006-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA
- * All Rights Reserved.
- * Copyright (c) 2009 VMware, Inc., Palo Alto, CA., USA
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- **************************************************************************/
-/*
- * Authors
- * Thomas Hellström <thomas-at-tungstengraphics-dot-com>
- */
-
-#ifndef _TTM_PLACEMENT_USER_H_
-#define _TTM_PLACEMENT_USER_H_
-
-#if !defined(__KERNEL__) && !defined(_KERNEL)
-#include <stdint.h>
-#else
-#include <linux/kernel.h>
-#endif
-
-#include "ttm/ttm_placement.h"
-
-#define TTM_PLACEMENT_MAJOR 0
-#define TTM_PLACEMENT_MINOR 1
-#define TTM_PLACEMENT_PL    0
-#define TTM_PLACEMENT_DATE  "080819"
-
-/**
- * struct ttm_pl_create_req
- *
- * @size: The buffer object size.
- * @placement: Flags that indicate initial acceptable
- *  placement.
- * @page_alignment: Required alignment in pages.
- *
- * Input to the TTM_BO_CREATE ioctl.
- */
-
-struct ttm_pl_create_req {
-	uint64_t size;
-	uint32_t placement;
-	uint32_t page_alignment;
-};
-
-/**
- * struct ttm_pl_create_ub_req
- *
- * @size: The buffer object size.
- * @user_address: User-space address of the memory area that
- * should be used to back the buffer object cast to 64-bit.
- * @placement: Flags that indicate initial acceptable
- *  placement.
- * @page_alignment: Required alignment in pages.
- *
- * Input to the TTM_BO_CREATE_UB ioctl.
- */
-
-struct ttm_pl_create_ub_req {
-	uint64_t size;
-	uint64_t user_address;
-	uint32_t placement;
-	uint32_t page_alignment;
-};
-
-/**
- * struct ttm_pl_rep
- *
- * @gpu_offset: The current offset into the memory region used.
- * This can be used directly by the GPU if there are no
- * additional GPU mapping procedures used by the driver.
- *
- * @bo_size: Actual buffer object size.
- *
- * @map_handle: Offset into the device address space.
- * Used for map, seek, read, write. This will never change
- * during the lifetime of an object.
- *
- * @placement: Flag indicating the placement status of
- * the buffer object using the TTM_PL flags above.
- *
- * @sync_object_arg: Used for user-space synchronization and
- * depends on the synchronization model used. If fences are
- * used, this is the buffer_object::fence_type_mask
- *
- * Output from the TTM_PL_CREATE and TTM_PL_REFERENCE, and
- * TTM_PL_SETSTATUS ioctls.
- */
-
-struct ttm_pl_rep {
-	uint64_t gpu_offset;
-	uint64_t bo_size;
-	uint64_t map_handle;
-	uint32_t placement;
-	uint32_t handle;
-	uint32_t sync_object_arg;
-	uint32_t pad64;
-};
-
-/**
- * struct ttm_pl_setstatus_req
- *
- * @set_placement: Placement flags to set.
- *
- * @clr_placement: Placement flags to clear.
- *
- * @handle: The object handle
- *
- * Input to the TTM_PL_SETSTATUS ioctl.
- */
-
-struct ttm_pl_setstatus_req {
-	uint32_t set_placement;
-	uint32_t clr_placement;
-	uint32_t handle;
-	uint32_t pad64;
-};
-
-/**
- * struct ttm_pl_reference_req
- *
- * @handle: The object to put a reference on.
- *
- * Input to the TTM_PL_REFERENCE and the TTM_PL_UNREFERENCE ioctls.
- */
-
-struct ttm_pl_reference_req {
-	uint32_t handle;
-	uint32_t pad64;
-};
-
-/*
- * ACCESS mode flags for SYNCCPU.
- *
- * TTM_SYNCCPU_MODE_READ will guarantee that the GPU is not
- * writing to the buffer.
- *
- * TTM_SYNCCPU_MODE_WRITE will guarantee that the GPU is not
- * accessing the buffer.
- *
- * TTM_SYNCCPU_MODE_NO_BLOCK makes sure the call does not wait
- * for GPU accesses to finish but return -EBUSY.
- *
- * TTM_SYNCCPU_MODE_TRYCACHED Try to place the buffer in cacheable
- * memory while synchronized for CPU.
- */
-
-#define TTM_PL_SYNCCPU_MODE_READ      TTM_ACCESS_READ
-#define TTM_PL_SYNCCPU_MODE_WRITE     TTM_ACCESS_WRITE
-#define TTM_PL_SYNCCPU_MODE_NO_BLOCK  (1 << 2)
-#define TTM_PL_SYNCCPU_MODE_TRYCACHED (1 << 3)
-
-/**
- * struct ttm_pl_synccpu_arg
- *
- * @handle: The object to synchronize.
- *
- * @access_mode: access mode indicated by the
- * TTM_SYNCCPU_MODE flags.
- *
- * @op: indicates whether to grab or release the
- * buffer for cpu usage.
- *
- * Input to the TTM_PL_SYNCCPU ioctl.
- */
-
-struct ttm_pl_synccpu_arg {
-	uint32_t handle;
-	uint32_t access_mode;
-	enum {
-		TTM_PL_SYNCCPU_OP_GRAB,
-		TTM_PL_SYNCCPU_OP_RELEASE
-	} op;
-	uint32_t pad64;
-};
-
-/*
- * Waiting mode flags for the TTM_BO_WAITIDLE ioctl.
- *
- * TTM_WAITIDLE_MODE_LAZY: Allow for sleeps during polling
- * wait.
- *
- * TTM_WAITIDLE_MODE_NO_BLOCK: Don't block waiting for GPU,
- * but return -EBUSY if the buffer is busy.
- */
-
-#define TTM_PL_WAITIDLE_MODE_LAZY     (1 << 0)
-#define TTM_PL_WAITIDLE_MODE_NO_BLOCK (1 << 1)
-
-/**
- * struct ttm_waitidle_arg
- *
- * @handle: The object to synchronize.
- *
- * @mode: wait mode indicated by the
- * TTM_SYNCCPU_MODE flags.
- *
- * Argument to the TTM_BO_WAITIDLE ioctl.
- */
-
-struct ttm_pl_waitidle_arg {
-	uint32_t handle;
-	uint32_t mode;
-};
-
-union ttm_pl_create_arg {
-	struct ttm_pl_create_req req;
-	struct ttm_pl_rep rep;
-};
-
-union ttm_pl_reference_arg {
-	struct ttm_pl_reference_req req;
-	struct ttm_pl_rep rep;
-};
-
-union ttm_pl_setstatus_arg {
-	struct ttm_pl_setstatus_req req;
-	struct ttm_pl_rep rep;
-};
-
-union ttm_pl_create_ub_arg {
-	struct ttm_pl_create_ub_req req;
-	struct ttm_pl_rep rep;
-};
-
-/*
- * Ioctl offsets.
- */
-
-#define TTM_PL_CREATE      0x00
-#define TTM_PL_REFERENCE   0x01
-#define TTM_PL_UNREF       0x02
-#define TTM_PL_SYNCCPU     0x03
-#define TTM_PL_WAITIDLE    0x04
-#define TTM_PL_SETSTATUS   0x05
-#define TTM_PL_CREATE_UB   0x06
-
-#endif
diff --git a/drivers/staging/gma500/psb_ttm_userobj_api.h b/drivers/staging/gma500/psb_ttm_userobj_api.h
deleted file mode 100644
index 6a8f7c4ddc78..000000000000
--- a/drivers/staging/gma500/psb_ttm_userobj_api.h
+++ /dev/null
@@ -1,85 +0,0 @@
-/**************************************************************************
- *
- * Copyright (c) 2006-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA
- * All Rights Reserved.
- * Copyright (c) 2009 VMware, Inc., Palo Alto, CA., USA
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- **************************************************************************/
-/*
- * Authors: Thomas Hellstrom <thomas-at-tungstengraphics-dot-com>
- */
-
-#ifndef _TTM_USEROBJ_API_H_
-#define _TTM_USEROBJ_API_H_
-
-#include "psb_ttm_placement_user.h"
-#include "psb_ttm_fence_user.h"
-#include "ttm/ttm_object.h"
-#include "psb_ttm_fence_api.h"
-#include "ttm/ttm_bo_api.h"
-
-struct ttm_lock;
-
-/*
- * User ioctls.
- */
-
-extern int ttm_pl_create_ioctl(struct ttm_object_file *tfile,
-			       struct ttm_bo_device *bdev,
-			       struct ttm_lock *lock, void *data);
-extern int ttm_pl_ub_create_ioctl(struct ttm_object_file *tfile,
-				  struct ttm_bo_device *bdev,
-				  struct ttm_lock *lock, void *data);
-extern int ttm_pl_reference_ioctl(struct ttm_object_file *tfile, void *data);
-extern int ttm_pl_unref_ioctl(struct ttm_object_file *tfile, void *data);
-extern int ttm_pl_synccpu_ioctl(struct ttm_object_file *tfile, void *data);
-extern int ttm_pl_setstatus_ioctl(struct ttm_object_file *tfile,
-				  struct ttm_lock *lock, void *data);
-extern int ttm_pl_waitidle_ioctl(struct ttm_object_file *tfile, void *data);
-extern int ttm_fence_signaled_ioctl(struct ttm_object_file *tfile, void *data);
-extern int ttm_fence_finish_ioctl(struct ttm_object_file *tfile, void *data);
-extern int ttm_fence_unref_ioctl(struct ttm_object_file *tfile, void *data);
-
-extern int
-ttm_fence_user_create(struct ttm_fence_device *fdev,
-		      struct ttm_object_file *tfile,
-		      uint32_t fence_class,
-		      uint32_t fence_types,
-		      uint32_t create_flags,
-		      struct ttm_fence_object **fence, uint32_t * user_handle);
-
-extern struct ttm_buffer_object *ttm_buffer_object_lookup(struct ttm_object_file
-							  *tfile,
-							  uint32_t handle);
-
-extern int
-ttm_pl_verify_access(struct ttm_buffer_object *bo,
-		     struct ttm_object_file *tfile);
-
-extern int ttm_buffer_object_create(struct ttm_bo_device *bdev,
-			unsigned long size,
-			enum ttm_bo_type type,
-			uint32_t flags,
-			uint32_t page_alignment,
-			unsigned long buffer_start,
-			bool interruptible,
-			struct file *persistant_swap_storage,
-			struct ttm_buffer_object **p_bo);
-
-extern int psb_ttm_bo_check_placement(struct ttm_buffer_object *bo,
-				struct ttm_placement *placement);
-#endif