diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 1164 |
1 files changed, 815 insertions, 349 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 9cd6de5f9906..f469a84cacfd 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -28,6 +28,7 @@ #include <linux/input.h> #include <linux/i2c.h> #include <linux/kernel.h> +#include <linux/slab.h> #include "drmP.h" #include "intel_drv.h" #include "i915_drm.h" @@ -741,36 +742,18 @@ bool intel_pipe_has_type (struct drm_crtc *crtc, int type) { struct drm_device *dev = crtc->dev; struct drm_mode_config *mode_config = &dev->mode_config; - struct drm_connector *l_entry; + struct drm_encoder *l_entry; - list_for_each_entry(l_entry, &mode_config->connector_list, head) { - if (l_entry->encoder && - l_entry->encoder->crtc == crtc) { - struct intel_output *intel_output = to_intel_output(l_entry); - if (intel_output->type == type) + list_for_each_entry(l_entry, &mode_config->encoder_list, head) { + if (l_entry && l_entry->crtc == crtc) { + struct intel_encoder *intel_encoder = enc_to_intel_encoder(l_entry); + if (intel_encoder->type == type) return true; } } return false; } -struct drm_connector * -intel_pipe_get_output (struct drm_crtc *crtc) -{ - struct drm_device *dev = crtc->dev; - struct drm_mode_config *mode_config = &dev->mode_config; - struct drm_connector *l_entry, *ret = NULL; - - list_for_each_entry(l_entry, &mode_config->connector_list, head) { - if (l_entry->encoder && - l_entry->encoder->crtc == crtc) { - ret = l_entry; - break; - } - } - return ret; -} - #define INTELPllInvalid(s) do { /* DRM_DEBUG(s); */ return false; } while (0) /** * Returns whether the given set of divisors are valid for a given refclk with @@ -904,9 +887,9 @@ intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, memset(best_clock, 0, sizeof(*best_clock)); max_n = limit->n.max; - /* based on hardware requriment prefer smaller n to precision */ + /* based on hardware requirement, prefer smaller n to precision */ for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { - /* based on hardware requirment prefere larger m1,m2 */ + /* based on hardware requirement, prefere larger m1,m2 */ for (clock.m1 = limit->m1.max; clock.m1 >= limit->m1.min; clock.m1--) { for (clock.m2 = limit->m2.max; @@ -1002,7 +985,7 @@ static void i8xx_enable_fbc(struct drm_crtc *crtc, unsigned long interval) struct drm_i915_private *dev_priv = dev->dev_private; struct drm_framebuffer *fb = crtc->fb; struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); - struct drm_i915_gem_object *obj_priv = intel_fb->obj->driver_private; + struct drm_i915_gem_object *obj_priv = to_intel_bo(intel_fb->obj); struct intel_crtc *intel_crtc = to_intel_crtc(crtc); int plane, i; u32 fbc_ctl, fbc_ctl2; @@ -1032,7 +1015,7 @@ static void i8xx_enable_fbc(struct drm_crtc *crtc, unsigned long interval) /* enable it... */ fbc_ctl = FBC_CTL_EN | FBC_CTL_PERIODIC; if (IS_I945GM(dev)) - fbc_ctl |= FBC_C3_IDLE; /* 945 needs special SR handling */ + fbc_ctl |= FBC_CTL_C3_IDLE; /* 945 needs special SR handling */ fbc_ctl |= (dev_priv->cfb_pitch & 0xff) << FBC_CTL_STRIDE_SHIFT; fbc_ctl |= (interval & 0x2fff) << FBC_CTL_INTERVAL_SHIFT; if (obj_priv->tiling_mode != I915_TILING_NONE) @@ -1065,9 +1048,8 @@ void i8xx_disable_fbc(struct drm_device *dev) DRM_DEBUG_KMS("disabled FBC\n"); } -static bool i8xx_fbc_enabled(struct drm_crtc *crtc) +static bool i8xx_fbc_enabled(struct drm_device *dev) { - struct drm_device *dev = crtc->dev; struct drm_i915_private *dev_priv = dev->dev_private; return I915_READ(FBC_CONTROL) & FBC_CTL_EN; @@ -1079,7 +1061,7 @@ static void g4x_enable_fbc(struct drm_crtc *crtc, unsigned long interval) struct drm_i915_private *dev_priv = dev->dev_private; struct drm_framebuffer *fb = crtc->fb; struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); - struct drm_i915_gem_object *obj_priv = intel_fb->obj->driver_private; + struct drm_i915_gem_object *obj_priv = to_intel_bo(intel_fb->obj); struct intel_crtc *intel_crtc = to_intel_crtc(crtc); int plane = (intel_crtc->plane == 0 ? DPFC_CTL_PLANEA : DPFC_CTL_PLANEB); @@ -1124,14 +1106,43 @@ void g4x_disable_fbc(struct drm_device *dev) DRM_DEBUG_KMS("disabled FBC\n"); } -static bool g4x_fbc_enabled(struct drm_crtc *crtc) +static bool g4x_fbc_enabled(struct drm_device *dev) { - struct drm_device *dev = crtc->dev; struct drm_i915_private *dev_priv = dev->dev_private; return I915_READ(DPFC_CONTROL) & DPFC_CTL_EN; } +bool intel_fbc_enabled(struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + + if (!dev_priv->display.fbc_enabled) + return false; + + return dev_priv->display.fbc_enabled(dev); +} + +void intel_enable_fbc(struct drm_crtc *crtc, unsigned long interval) +{ + struct drm_i915_private *dev_priv = crtc->dev->dev_private; + + if (!dev_priv->display.enable_fbc) + return; + + dev_priv->display.enable_fbc(crtc, interval); +} + +void intel_disable_fbc(struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + + if (!dev_priv->display.disable_fbc) + return; + + dev_priv->display.disable_fbc(dev); +} + /** * intel_update_fbc - enable/disable FBC as needed * @crtc: CRTC to point the compressor at @@ -1166,16 +1177,14 @@ static void intel_update_fbc(struct drm_crtc *crtc, if (!i915_powersave) return; - if (!dev_priv->display.fbc_enabled || - !dev_priv->display.enable_fbc || - !dev_priv->display.disable_fbc) + if (!I915_HAS_FBC(dev)) return; if (!crtc->fb) return; intel_fb = to_intel_framebuffer(fb); - obj_priv = intel_fb->obj->driver_private; + obj_priv = to_intel_bo(intel_fb->obj); /* * If FBC is already on, we just have to verify that we can @@ -1215,34 +1224,31 @@ static void intel_update_fbc(struct drm_crtc *crtc, goto out_disable; } - if (dev_priv->display.fbc_enabled(crtc)) { + if (intel_fbc_enabled(dev)) { /* We can re-enable it in this case, but need to update pitch */ - if (fb->pitch > dev_priv->cfb_pitch) - dev_priv->display.disable_fbc(dev); - if (obj_priv->fence_reg != dev_priv->cfb_fence) - dev_priv->display.disable_fbc(dev); - if (plane != dev_priv->cfb_plane) - dev_priv->display.disable_fbc(dev); + if ((fb->pitch > dev_priv->cfb_pitch) || + (obj_priv->fence_reg != dev_priv->cfb_fence) || + (plane != dev_priv->cfb_plane)) + intel_disable_fbc(dev); } - if (!dev_priv->display.fbc_enabled(crtc)) { - /* Now try to turn it back on if possible */ - dev_priv->display.enable_fbc(crtc, 500); - } + /* Now try to turn it back on if possible */ + if (!intel_fbc_enabled(dev)) + intel_enable_fbc(crtc, 500); return; out_disable: DRM_DEBUG_KMS("unsupported config, disabling FBC\n"); /* Multiple disables should be harmless */ - if (dev_priv->display.fbc_enabled(crtc)) - dev_priv->display.disable_fbc(dev); + if (intel_fbc_enabled(dev)) + intel_disable_fbc(dev); } static int intel_pin_and_fence_fb_obj(struct drm_device *dev, struct drm_gem_object *obj) { - struct drm_i915_gem_object *obj_priv = obj->driver_private; + struct drm_i915_gem_object *obj_priv = to_intel_bo(obj); u32 alignment; int ret; @@ -1322,7 +1328,7 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, intel_fb = to_intel_framebuffer(crtc->fb); obj = intel_fb->obj; - obj_priv = obj->driver_private; + obj_priv = to_intel_bo(obj); mutex_lock(&dev->struct_mutex); ret = intel_pin_and_fence_fb_obj(dev, obj); @@ -1400,7 +1406,7 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, if (old_fb) { intel_fb = to_intel_framebuffer(old_fb); - obj_priv = intel_fb->obj->driver_private; + obj_priv = to_intel_bo(intel_fb->obj); i915_gem_object_unpin(intel_fb->obj); } intel_increase_pllclock(crtc, true); @@ -1509,6 +1515,219 @@ static void ironlake_set_pll_edp (struct drm_crtc *crtc, int clock) udelay(500); } +/* The FDI link training functions for ILK/Ibexpeak. */ +static void ironlake_fdi_link_train(struct drm_crtc *crtc) +{ + struct drm_device *dev = crtc->dev; + struct drm_i915_private *dev_priv = dev->dev_private; + struct intel_crtc *intel_crtc = to_intel_crtc(crtc); + int pipe = intel_crtc->pipe; + int fdi_tx_reg = (pipe == 0) ? FDI_TXA_CTL : FDI_TXB_CTL; + int fdi_rx_reg = (pipe == 0) ? FDI_RXA_CTL : FDI_RXB_CTL; + int fdi_rx_iir_reg = (pipe == 0) ? FDI_RXA_IIR : FDI_RXB_IIR; + int fdi_rx_imr_reg = (pipe == 0) ? FDI_RXA_IMR : FDI_RXB_IMR; + u32 temp, tries = 0; + + /* enable CPU FDI TX and PCH FDI RX */ + temp = I915_READ(fdi_tx_reg); + temp |= FDI_TX_ENABLE; + temp &= ~(7 << 19); + temp |= (intel_crtc->fdi_lanes - 1) << 19; + temp &= ~FDI_LINK_TRAIN_NONE; + temp |= FDI_LINK_TRAIN_PATTERN_1; + I915_WRITE(fdi_tx_reg, temp); + I915_READ(fdi_tx_reg); + + temp = I915_READ(fdi_rx_reg); + temp &= ~FDI_LINK_TRAIN_NONE; + temp |= FDI_LINK_TRAIN_PATTERN_1; + I915_WRITE(fdi_rx_reg, temp | FDI_RX_ENABLE); + I915_READ(fdi_rx_reg); + udelay(150); + + /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit + for train result */ + temp = I915_READ(fdi_rx_imr_reg); + temp &= ~FDI_RX_SYMBOL_LOCK; + temp &= ~FDI_RX_BIT_LOCK; + I915_WRITE(fdi_rx_imr_reg, temp); + I915_READ(fdi_rx_imr_reg); + udelay(150); + + for (;;) { + temp = I915_READ(fdi_rx_iir_reg); + DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); + + if ((temp & FDI_RX_BIT_LOCK)) { + DRM_DEBUG_KMS("FDI train 1 done.\n"); + I915_WRITE(fdi_rx_iir_reg, + temp | FDI_RX_BIT_LOCK); + break; + } + + tries++; + + if (tries > 5) { + DRM_DEBUG_KMS("FDI train 1 fail!\n"); + break; + } + } + + /* Train 2 */ + temp = I915_READ(fdi_tx_reg); + temp &= ~FDI_LINK_TRAIN_NONE; + temp |= FDI_LINK_TRAIN_PATTERN_2; + I915_WRITE(fdi_tx_reg, temp); + + temp = I915_READ(fdi_rx_reg); + temp &= ~FDI_LINK_TRAIN_NONE; + temp |= FDI_LINK_TRAIN_PATTERN_2; + I915_WRITE(fdi_rx_reg, temp); + udelay(150); + + tries = 0; + + for (;;) { + temp = I915_READ(fdi_rx_iir_reg); + DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); + + if (temp & FDI_RX_SYMBOL_LOCK) { + I915_WRITE(fdi_rx_iir_reg, + temp | FDI_RX_SYMBOL_LOCK); + DRM_DEBUG_KMS("FDI train 2 done.\n"); + break; + } + + tries++; + + if (tries > 5) { + DRM_DEBUG_KMS("FDI train 2 fail!\n"); + break; + } + } + + DRM_DEBUG_KMS("FDI train done\n"); +} + +static int snb_b_fdi_train_param [] = { + FDI_LINK_TRAIN_400MV_0DB_SNB_B, + FDI_LINK_TRAIN_400MV_6DB_SNB_B, + FDI_LINK_TRAIN_600MV_3_5DB_SNB_B, + FDI_LINK_TRAIN_800MV_0DB_SNB_B, +}; + +/* The FDI link training functions for SNB/Cougarpoint. */ +static void gen6_fdi_link_train(struct drm_crtc *crtc) +{ + struct drm_device *dev = crtc->dev; + struct drm_i915_private *dev_priv = dev->dev_private; + struct intel_crtc *intel_crtc = to_intel_crtc(crtc); + int pipe = intel_crtc->pipe; + int fdi_tx_reg = (pipe == 0) ? FDI_TXA_CTL : FDI_TXB_CTL; + int fdi_rx_reg = (pipe == 0) ? FDI_RXA_CTL : FDI_RXB_CTL; + int fdi_rx_iir_reg = (pipe == 0) ? FDI_RXA_IIR : FDI_RXB_IIR; + int fdi_rx_imr_reg = (pipe == 0) ? FDI_RXA_IMR : FDI_RXB_IMR; + u32 temp, i; + + /* enable CPU FDI TX and PCH FDI RX */ + temp = I915_READ(fdi_tx_reg); + temp |= FDI_TX_ENABLE; + temp &= ~(7 << 19); + temp |= (intel_crtc->fdi_lanes - 1) << 19; + temp &= ~FDI_LINK_TRAIN_NONE; + temp |= FDI_LINK_TRAIN_PATTERN_1; + temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; + /* SNB-B */ + temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; + I915_WRITE(fdi_tx_reg, temp); + I915_READ(fdi_tx_reg); + + temp = I915_READ(fdi_rx_reg); + if (HAS_PCH_CPT(dev)) { + temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; + temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; + } else { + temp &= ~FDI_LINK_TRAIN_NONE; + temp |= FDI_LINK_TRAIN_PATTERN_1; + } + I915_WRITE(fdi_rx_reg, temp | FDI_RX_ENABLE); + I915_READ(fdi_rx_reg); + udelay(150); + + /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit + for train result */ + temp = I915_READ(fdi_rx_imr_reg); + temp &= ~FDI_RX_SYMBOL_LOCK; + temp &= ~FDI_RX_BIT_LOCK; + I915_WRITE(fdi_rx_imr_reg, temp); + I915_READ(fdi_rx_imr_reg); + udelay(150); + + for (i = 0; i < 4; i++ ) { + temp = I915_READ(fdi_tx_reg); + temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; + temp |= snb_b_fdi_train_param[i]; + I915_WRITE(fdi_tx_reg, temp); + udelay(500); + + temp = I915_READ(fdi_rx_iir_reg); + DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); + + if (temp & FDI_RX_BIT_LOCK) { + I915_WRITE(fdi_rx_iir_reg, + temp | FDI_RX_BIT_LOCK); + DRM_DEBUG_KMS("FDI train 1 done.\n"); + break; + } + } + if (i == 4) + DRM_DEBUG_KMS("FDI train 1 fail!\n"); + + /* Train 2 */ + temp = I915_READ(fdi_tx_reg); + temp &= ~FDI_LINK_TRAIN_NONE; + temp |= FDI_LINK_TRAIN_PATTERN_2; + if (IS_GEN6(dev)) { + temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; + /* SNB-B */ + temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B; + } + I915_WRITE(fdi_tx_reg, temp); + + temp = I915_READ(fdi_rx_reg); + if (HAS_PCH_CPT(dev)) { + temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; + temp |= FDI_LINK_TRAIN_PATTERN_2_CPT; + } else { + temp &= ~FDI_LINK_TRAIN_NONE; + temp |= FDI_LINK_TRAIN_PATTERN_2; + } + I915_WRITE(fdi_rx_reg, temp); + udelay(150); + + for (i = 0; i < 4; i++ ) { + temp = I915_READ(fdi_tx_reg); + temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK; + temp |= snb_b_fdi_train_param[i]; + I915_WRITE(fdi_tx_reg, temp); + udelay(500); + + temp = I915_READ(fdi_rx_iir_reg); + DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); + + if (temp & FDI_RX_SYMBOL_LOCK) { + I915_WRITE(fdi_rx_iir_reg, + temp | FDI_RX_SYMBOL_LOCK); + DRM_DEBUG_KMS("FDI train 2 done.\n"); + break; + } + } + if (i == 4) + DRM_DEBUG_KMS("FDI train 2 fail!\n"); + + DRM_DEBUG_KMS("FDI train done.\n"); +} + static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode) { struct drm_device *dev = crtc->dev; @@ -1522,8 +1741,6 @@ static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode) int dspbase_reg = (plane == 0) ? DSPAADDR : DSPBADDR; int fdi_tx_reg = (pipe == 0) ? FDI_TXA_CTL : FDI_TXB_CTL; int fdi_rx_reg = (pipe == 0) ? FDI_RXA_CTL : FDI_RXB_CTL; - int fdi_rx_iir_reg = (pipe == 0) ? FDI_RXA_IIR : FDI_RXB_IIR; - int fdi_rx_imr_reg = (pipe == 0) ? FDI_RXA_IMR : FDI_RXB_IMR; int transconf_reg = (pipe == 0) ? TRANSACONF : TRANSBCONF; int pf_ctl_reg = (pipe == 0) ? PFA_CTL_1 : PFB_CTL_1; int pf_win_size = (pipe == 0) ? PFA_WIN_SZ : PFB_WIN_SZ; @@ -1540,8 +1757,9 @@ static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode) int trans_vtot_reg = (pipe == 0) ? TRANS_VTOTAL_A : TRANS_VTOTAL_B; int trans_vblank_reg = (pipe == 0) ? TRANS_VBLANK_A : TRANS_VBLANK_B; int trans_vsync_reg = (pipe == 0) ? TRANS_VSYNC_A : TRANS_VSYNC_B; + int trans_dpll_sel = (pipe == 0) ? 0 : 1; u32 temp; - int tries = 5, j, n; + int n; u32 pipe_bpc; temp = I915_READ(pipeconf_reg); @@ -1568,12 +1786,6 @@ static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode) /* enable eDP PLL */ ironlake_enable_pll_edp(crtc); } else { - /* enable PCH DPLL */ - temp = I915_READ(pch_dpll_reg); - if ((temp & DPLL_VCO_ENABLE) == 0) { - I915_WRITE(pch_dpll_reg, temp | DPLL_VCO_ENABLE); - I915_READ(pch_dpll_reg); - } /* enable PCH FDI RX PLL, wait warmup plus DMI latency */ temp = I915_READ(fdi_rx_reg); @@ -1583,9 +1795,15 @@ static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode) */ temp &= ~(0x7 << 16); temp |= (pipe_bpc << 11); - I915_WRITE(fdi_rx_reg, temp | FDI_RX_PLL_ENABLE | - FDI_SEL_PCDCLK | - FDI_DP_PORT_WIDTH_X4); /* default 4 lanes */ + temp &= ~(7 << 19); + temp |= (intel_crtc->fdi_lanes - 1) << 19; + I915_WRITE(fdi_rx_reg, temp | FDI_RX_PLL_ENABLE); + I915_READ(fdi_rx_reg); + udelay(200); + + /* Switch from Rawclk to PCDclk */ + temp = I915_READ(fdi_rx_reg); + I915_WRITE(fdi_rx_reg, temp | FDI_SEL_PCDCLK); I915_READ(fdi_rx_reg); udelay(200); @@ -1628,91 +1846,32 @@ static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode) } if (!HAS_eDP) { - /* enable CPU FDI TX and PCH FDI RX */ - temp = I915_READ(fdi_tx_reg); - temp |= FDI_TX_ENABLE; - temp |= FDI_DP_PORT_WIDTH_X4; /* default */ - temp &= ~FDI_LINK_TRAIN_NONE; - temp |= FDI_LINK_TRAIN_PATTERN_1; - I915_WRITE(fdi_tx_reg, temp); - I915_READ(fdi_tx_reg); - - temp = I915_READ(fdi_rx_reg); - temp &= ~FDI_LINK_TRAIN_NONE; - temp |= FDI_LINK_TRAIN_PATTERN_1; - I915_WRITE(fdi_rx_reg, temp | FDI_RX_ENABLE); - I915_READ(fdi_rx_reg); - - udelay(150); - - /* Train FDI. */ - /* umask FDI RX Interrupt symbol_lock and bit_lock bit - for train result */ - temp = I915_READ(fdi_rx_imr_reg); - temp &= ~FDI_RX_SYMBOL_LOCK; - temp &= ~FDI_RX_BIT_LOCK; - I915_WRITE(fdi_rx_imr_reg, temp); - I915_READ(fdi_rx_imr_reg); - udelay(150); + /* For PCH output, training FDI link */ + if (IS_GEN6(dev)) + gen6_fdi_link_train(crtc); + else + ironlake_fdi_link_train(crtc); - temp = I915_READ(fdi_rx_iir_reg); - DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); - - if ((temp & FDI_RX_BIT_LOCK) == 0) { - for (j = 0; j < tries; j++) { - temp = I915_READ(fdi_rx_iir_reg); - DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", - temp); - if (temp & FDI_RX_BIT_LOCK) - break; - udelay(200); - } - if (j != tries) - I915_WRITE(fdi_rx_iir_reg, - temp | FDI_RX_BIT_LOCK); - else - DRM_DEBUG_KMS("train 1 fail\n"); - } else { - I915_WRITE(fdi_rx_iir_reg, - temp | FDI_RX_BIT_LOCK); - DRM_DEBUG_KMS("train 1 ok 2!\n"); + /* enable PCH DPLL */ + temp = I915_READ(pch_dpll_reg); + if ((temp & DPLL_VCO_ENABLE) == 0) { + I915_WRITE(pch_dpll_reg, temp | DPLL_VCO_ENABLE); + I915_READ(pch_dpll_reg); } - temp = I915_READ(fdi_tx_reg); - temp &= ~FDI_LINK_TRAIN_NONE; - temp |= FDI_LINK_TRAIN_PATTERN_2; - I915_WRITE(fdi_tx_reg, temp); - - temp = I915_READ(fdi_rx_reg); - temp &= ~FDI_LINK_TRAIN_NONE; - temp |= FDI_LINK_TRAIN_PATTERN_2; - I915_WRITE(fdi_rx_reg, temp); - - udelay(150); + udelay(200); - temp = I915_READ(fdi_rx_iir_reg); - DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp); - - if ((temp & FDI_RX_SYMBOL_LOCK) == 0) { - for (j = 0; j < tries; j++) { - temp = I915_READ(fdi_rx_iir_reg); - DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", - temp); - if (temp & FDI_RX_SYMBOL_LOCK) - break; - udelay(200); - } - if (j != tries) { - I915_WRITE(fdi_rx_iir_reg, - temp | FDI_RX_SYMBOL_LOCK); - DRM_DEBUG_KMS("train 2 ok 1!\n"); - } else - DRM_DEBUG_KMS("train 2 fail\n"); - } else { - I915_WRITE(fdi_rx_iir_reg, - temp | FDI_RX_SYMBOL_LOCK); - DRM_DEBUG_KMS("train 2 ok 2!\n"); + if (HAS_PCH_CPT(dev)) { + /* Be sure PCH DPLL SEL is set */ + temp = I915_READ(PCH_DPLL_SEL); + if (trans_dpll_sel == 0 && + (temp & TRANSA_DPLL_ENABLE) == 0) + temp |= (TRANSA_DPLL_ENABLE | TRANSA_DPLLA_SEL); + else if (trans_dpll_sel == 1 && + (temp & TRANSB_DPLL_ENABLE) == 0) + temp |= (TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL); + I915_WRITE(PCH_DPLL_SEL, temp); + I915_READ(PCH_DPLL_SEL); } - DRM_DEBUG_KMS("train done\n"); /* set transcoder timing */ I915_WRITE(trans_htot_reg, I915_READ(cpu_htot_reg)); @@ -1723,6 +1882,60 @@ static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode) I915_WRITE(trans_vblank_reg, I915_READ(cpu_vblank_reg)); I915_WRITE(trans_vsync_reg, I915_READ(cpu_vsync_reg)); + /* enable normal train */ + temp = I915_READ(fdi_tx_reg); + temp &= ~FDI_LINK_TRAIN_NONE; + I915_WRITE(fdi_tx_reg, temp | FDI_LINK_TRAIN_NONE | + FDI_TX_ENHANCE_FRAME_ENABLE); + I915_READ(fdi_tx_reg); + + temp = I915_READ(fdi_rx_reg); + if (HAS_PCH_CPT(dev)) { + temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; + temp |= FDI_LINK_TRAIN_NORMAL_CPT; + } else { + temp &= ~FDI_LINK_TRAIN_NONE; + temp |= FDI_LINK_TRAIN_NONE; + } + I915_WRITE(fdi_rx_reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE); + I915_READ(fdi_rx_reg); + + /* wait one idle pattern time */ + udelay(100); + + /* For PCH DP, enable TRANS_DP_CTL */ + if (HAS_PCH_CPT(dev) && + intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { + int trans_dp_ctl = (pipe == 0) ? TRANS_DP_CTL_A : TRANS_DP_CTL_B; + int reg; + + reg = I915_READ(trans_dp_ctl); + reg &= ~TRANS_DP_PORT_SEL_MASK; + reg = TRANS_DP_OUTPUT_ENABLE | + TRANS_DP_ENH_FRAMING | + TRANS_DP_VSYNC_ACTIVE_HIGH | + TRANS_DP_HSYNC_ACTIVE_HIGH; + + switch (intel_trans_dp_port_sel(crtc)) { + case PCH_DP_B: + reg |= TRANS_DP_PORT_SEL_B; + break; + case PCH_DP_C: + reg |= TRANS_DP_PORT_SEL_C; + break; + case PCH_DP_D: + reg |= TRANS_DP_PORT_SEL_D; + break; + default: + DRM_DEBUG_KMS("Wrong PCH DP port return. Guess port B\n"); + reg |= TRANS_DP_PORT_SEL_B; + break; + } + + I915_WRITE(trans_dp_ctl, reg); + POSTING_READ(trans_dp_ctl); + } + /* enable PCH transcoder */ temp = I915_READ(transconf_reg); /* @@ -1737,23 +1950,6 @@ static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode) while ((I915_READ(transconf_reg) & TRANS_STATE_ENABLE) == 0) ; - /* enable normal */ - - temp = I915_READ(fdi_tx_reg); - temp &= ~FDI_LINK_TRAIN_NONE; - I915_WRITE(fdi_tx_reg, temp | FDI_LINK_TRAIN_NONE | - FDI_TX_ENHANCE_FRAME_ENABLE); - I915_READ(fdi_tx_reg); - - temp = I915_READ(fdi_rx_reg); - temp &= ~FDI_LINK_TRAIN_NONE; - I915_WRITE(fdi_rx_reg, temp | FDI_LINK_TRAIN_NONE | - FDI_RX_ENHANCE_FRAME_ENABLE); - I915_READ(fdi_rx_reg); - - /* wait one idle pattern time */ - udelay(100); - } intel_crtc_load_lut(crtc); @@ -1804,6 +2000,8 @@ static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode) I915_READ(pf_ctl_reg); } I915_WRITE(pf_win_size, 0); + POSTING_READ(pf_win_size); + /* disable CPU FDI tx and PCH FDI rx */ temp = I915_READ(fdi_tx_reg); @@ -1824,11 +2022,18 @@ static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode) temp &= ~FDI_LINK_TRAIN_NONE; temp |= FDI_LINK_TRAIN_PATTERN_1; I915_WRITE(fdi_tx_reg, temp); + POSTING_READ(fdi_tx_reg); temp = I915_READ(fdi_rx_reg); - temp &= ~FDI_LINK_TRAIN_NONE; - temp |= FDI_LINK_TRAIN_PATTERN_1; + if (HAS_PCH_CPT(dev)) { + temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; + temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; + } else { + temp &= ~FDI_LINK_TRAIN_NONE; + temp |= FDI_LINK_TRAIN_PATTERN_1; + } I915_WRITE(fdi_rx_reg, temp); + POSTING_READ(fdi_rx_reg); udelay(100); @@ -1858,6 +2063,7 @@ static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode) } } } + temp = I915_READ(transconf_reg); /* BPC in transcoder is consistent with that in pipeconf */ temp &= ~PIPE_BPC_MASK; @@ -1866,35 +2072,53 @@ static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode) I915_READ(transconf_reg); udelay(100); + if (HAS_PCH_CPT(dev)) { + /* disable TRANS_DP_CTL */ + int trans_dp_ctl = (pipe == 0) ? TRANS_DP_CTL_A : TRANS_DP_CTL_B; + int reg; + + reg = I915_READ(trans_dp_ctl); + reg &= ~(TRANS_DP_OUTPUT_ENABLE | TRANS_DP_PORT_SEL_MASK); + I915_WRITE(trans_dp_ctl, reg); + POSTING_READ(trans_dp_ctl); + + /* disable DPLL_SEL */ + temp = I915_READ(PCH_DPLL_SEL); + if (trans_dpll_sel == 0) + temp &= ~(TRANSA_DPLL_ENABLE | TRANSA_DPLLB_SEL); + else + temp &= ~(TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL); + I915_WRITE(PCH_DPLL_SEL, temp); + I915_READ(PCH_DPLL_SEL); + + } + /* disable PCH DPLL */ temp = I915_READ(pch_dpll_reg); - if ((temp & DPLL_VCO_ENABLE) != 0) { - I915_WRITE(pch_dpll_reg, temp & ~DPLL_VCO_ENABLE); - I915_READ(pch_dpll_reg); - } + I915_WRITE(pch_dpll_reg, temp & ~DPLL_VCO_ENABLE); + I915_READ(pch_dpll_reg); if (HAS_eDP) { ironlake_disable_pll_edp(crtc); } + /* Switch from PCDclk to Rawclk */ temp = I915_READ(fdi_rx_reg); temp &= ~FDI_SEL_PCDCLK; I915_WRITE(fdi_rx_reg, temp); I915_READ(fdi_rx_reg); + /* Disable CPU FDI TX PLL */ + temp = I915_READ(fdi_tx_reg); + I915_WRITE(fdi_tx_reg, temp & ~FDI_TX_PLL_ENABLE); + I915_READ(fdi_tx_reg); + udelay(100); + temp = I915_READ(fdi_rx_reg); temp &= ~FDI_RX_PLL_ENABLE; I915_WRITE(fdi_rx_reg, temp); I915_READ(fdi_rx_reg); - /* Disable CPU FDI TX PLL */ - temp = I915_READ(fdi_tx_reg); - if ((temp & FDI_TX_PLL_ENABLE) != 0) { - I915_WRITE(fdi_tx_reg, temp & ~FDI_TX_PLL_ENABLE); - I915_READ(fdi_tx_reg); - udelay(100); - } - /* Wait for the clocks to turn off. */ udelay(100); break; @@ -2330,6 +2554,30 @@ static struct intel_watermark_params i830_wm_info = { I830_FIFO_LINE_SIZE }; +static struct intel_watermark_params ironlake_display_wm_info = { + ILK_DISPLAY_FIFO, + ILK_DISPLAY_MAXWM, + ILK_DISPLAY_DFTWM, + 2, + ILK_FIFO_LINE_SIZE +}; + +static struct intel_watermark_params ironlake_display_srwm_info = { + ILK_DISPLAY_SR_FIFO, + ILK_DISPLAY_MAX_SRWM, + ILK_DISPLAY_DFT_SRWM, + 2, + ILK_FIFO_LINE_SIZE +}; + +static struct intel_watermark_params ironlake_cursor_srwm_info = { + ILK_CURSOR_SR_FIFO, + ILK_CURSOR_MAX_SRWM, + ILK_CURSOR_DFT_SRWM, + 2, + ILK_FIFO_LINE_SIZE +}; + /** * intel_calculate_wm - calculate watermark level * @clock_in_khz: pixel clock @@ -2448,66 +2696,6 @@ static void pineview_disable_cxsr(struct drm_device *dev) DRM_INFO("Big FIFO is disabled\n"); } -static void pineview_enable_cxsr(struct drm_device *dev, unsigned long clock, - int pixel_size) -{ - struct drm_i915_private *dev_priv = dev->dev_private; - u32 reg; - unsigned long wm; - struct cxsr_latency *latency; - - latency = intel_get_cxsr_latency(IS_PINEVIEW_G(dev), dev_priv->fsb_freq, - dev_priv->mem_freq); - if (!latency) { - DRM_DEBUG_KMS("Unknown FSB/MEM found, disable CxSR\n"); - pineview_disable_cxsr(dev); - return; - } - - /* Display SR */ - wm = intel_calculate_wm(clock, &pineview_display_wm, pixel_size, - latency->display_sr); - reg = I915_READ(DSPFW1); - reg &= 0x7fffff; - reg |= wm << 23; - I915_WRITE(DSPFW1, reg); - DRM_DEBUG_KMS("DSPFW1 register is %x\n", reg); - - /* cursor SR */ - wm = intel_calculate_wm(clock, &pineview_cursor_wm, pixel_size, - latency->cursor_sr); - reg = I915_READ(DSPFW3); - reg &= ~(0x3f << 24); - reg |= (wm & 0x3f) << 24; - I915_WRITE(DSPFW3, reg); - - /* Display HPLL off SR */ - wm = intel_calculate_wm(clock, &pineview_display_hplloff_wm, - latency->display_hpll_disable, I915_FIFO_LINE_SIZE); - reg = I915_READ(DSPFW3); - reg &= 0xfffffe00; - reg |= wm & 0x1ff; - I915_WRITE(DSPFW3, reg); - - /* cursor HPLL off SR */ - wm = intel_calculate_wm(clock, &pineview_cursor_hplloff_wm, pixel_size, - latency->cursor_hpll_disable); - reg = I915_READ(DSPFW3); - reg &= ~(0x3f << 16); - reg |= (wm & 0x3f) << 16; - I915_WRITE(DSPFW3, reg); - DRM_DEBUG_KMS("DSPFW3 register is %x\n", reg); - - /* activate cxsr */ - reg = I915_READ(DSPFW3); - reg |= PINEVIEW_SELF_REFRESH_EN; - I915_WRITE(DSPFW3, reg); - - DRM_INFO("Big FIFO is enabled\n"); - - return; -} - /* * Latency for FIFO fetches is dependent on several factors: * - memory configuration (speed, channels) @@ -2592,6 +2780,71 @@ static int i830_get_fifo_size(struct drm_device *dev, int plane) return size; } +static void pineview_update_wm(struct drm_device *dev, int planea_clock, + int planeb_clock, int sr_hdisplay, int pixel_size) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + u32 reg; + unsigned long wm; + struct cxsr_latency *latency; + int sr_clock; + + latency = intel_get_cxsr_latency(IS_PINEVIEW_G(dev), dev_priv->fsb_freq, + dev_priv->mem_freq); + if (!latency) { + DRM_DEBUG_KMS("Unknown FSB/MEM found, disable CxSR\n"); + pineview_disable_cxsr(dev); + return; + } + + if (!planea_clock || !planeb_clock) { + sr_clock = planea_clock ? planea_clock : planeb_clock; + + /* Display SR */ + wm = intel_calculate_wm(sr_clock, &pineview_display_wm, + pixel_size, latency->display_sr); + reg = I915_READ(DSPFW1); + reg &= ~DSPFW_SR_MASK; + reg |= wm << DSPFW_SR_SHIFT; + I915_WRITE(DSPFW1, reg); + DRM_DEBUG_KMS("DSPFW1 register is %x\n", reg); + + /* cursor SR */ + wm = intel_calculate_wm(sr_clock, &pineview_cursor_wm, + pixel_size, latency->cursor_sr); + reg = I915_READ(DSPFW3); + reg &= ~DSPFW_CURSOR_SR_MASK; + reg |= (wm & 0x3f) << DSPFW_CURSOR_SR_SHIFT; + I915_WRITE(DSPFW3, reg); + + /* Display HPLL off SR */ + wm = intel_calculate_wm(sr_clock, &pineview_display_hplloff_wm, + pixel_size, latency->display_hpll_disable); + reg = I915_READ(DSPFW3); + reg &= ~DSPFW_HPLL_SR_MASK; + reg |= wm & DSPFW_HPLL_SR_MASK; + I915_WRITE(DSPFW3, reg); + + /* cursor HPLL off SR */ + wm = intel_calculate_wm(sr_clock, &pineview_cursor_hplloff_wm, + pixel_size, latency->cursor_hpll_disable); + reg = I915_READ(DSPFW3); + reg &= ~DSPFW_HPLL_CURSOR_MASK; + reg |= (wm & 0x3f) << DSPFW_HPLL_CURSOR_SHIFT; + I915_WRITE(DSPFW3, reg); + DRM_DEBUG_KMS("DSPFW3 register is %x\n", reg); + + /* activate cxsr */ + reg = I915_READ(DSPFW3); + reg |= PINEVIEW_SELF_REFRESH_EN; + I915_WRITE(DSPFW3, reg); + DRM_DEBUG_KMS("Self-refresh is enabled\n"); + } else { + pineview_disable_cxsr(dev); + DRM_DEBUG_KMS("Self-refresh is disabled\n"); + } +} + static void g4x_update_wm(struct drm_device *dev, int planea_clock, int planeb_clock, int sr_hdisplay, int pixel_size) { @@ -2812,6 +3065,108 @@ static void i830_update_wm(struct drm_device *dev, int planea_clock, int unused, I915_WRITE(FW_BLC, fwater_lo); } +#define ILK_LP0_PLANE_LATENCY 700 + +static void ironlake_update_wm(struct drm_device *dev, int planea_clock, + int planeb_clock, int sr_hdisplay, int pixel_size) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + int planea_wm, planeb_wm, cursora_wm, cursorb_wm; + int sr_wm, cursor_wm; + unsigned long line_time_us; + int sr_clock, entries_required; + u32 reg_value; + + /* Calculate and update the watermark for plane A */ + if (planea_clock) { + entries_required = ((planea_clock / 1000) * pixel_size * + ILK_LP0_PLANE_LATENCY) / 1000; + entries_required = DIV_ROUND_UP(entries_required, + ironlake_display_wm_info.cacheline_size); + planea_wm = entries_required + + ironlake_display_wm_info.guard_size; + + if (planea_wm > (int)ironlake_display_wm_info.max_wm) + planea_wm = ironlake_display_wm_info.max_wm; + + cursora_wm = 16; + reg_value = I915_READ(WM0_PIPEA_ILK); + reg_value &= ~(WM0_PIPE_PLANE_MASK | WM0_PIPE_CURSOR_MASK); + reg_value |= (planea_wm << WM0_PIPE_PLANE_SHIFT) | + (cursora_wm & WM0_PIPE_CURSOR_MASK); + I915_WRITE(WM0_PIPEA_ILK, reg_value); + DRM_DEBUG_KMS("FIFO watermarks For pipe A - plane %d, " + "cursor: %d\n", planea_wm, cursora_wm); + } + /* Calculate and update the watermark for plane B */ + if (planeb_clock) { + entries_required = ((planeb_clock / 1000) * pixel_size * + ILK_LP0_PLANE_LATENCY) / 1000; + entries_required = DIV_ROUND_UP(entries_required, + ironlake_display_wm_info.cacheline_size); + planeb_wm = entries_required + + ironlake_display_wm_info.guard_size; + + if (planeb_wm > (int)ironlake_display_wm_info.max_wm) + planeb_wm = ironlake_display_wm_info.max_wm; + + cursorb_wm = 16; + reg_value = I915_READ(WM0_PIPEB_ILK); + reg_value &= ~(WM0_PIPE_PLANE_MASK | WM0_PIPE_CURSOR_MASK); + reg_value |= (planeb_wm << WM0_PIPE_PLANE_SHIFT) | + (cursorb_wm & WM0_PIPE_CURSOR_MASK); + I915_WRITE(WM0_PIPEB_ILK, reg_value); + DRM_DEBUG_KMS("FIFO watermarks For pipe B - plane %d, " + "cursor: %d\n", planeb_wm, cursorb_wm); + } + + /* + * Calculate and update the self-refresh watermark only when one + * display plane is used. + */ + if (!planea_clock || !planeb_clock) { + int line_count; + /* Read the self-refresh latency. The unit is 0.5us */ + int ilk_sr_latency = I915_READ(MLTR_ILK) & ILK_SRLT_MASK; + + sr_clock = planea_clock ? planea_clock : planeb_clock; + line_time_us = ((sr_hdisplay * 1000) / sr_clock); + + /* Use ns/us then divide to preserve precision */ + line_count = ((ilk_sr_latency * 500) / line_time_us + 1000) + / 1000; + + /* calculate the self-refresh watermark for display plane */ + entries_required = line_count * sr_hdisplay * pixel_size; + entries_required = DIV_ROUND_UP(entries_required, + ironlake_display_srwm_info.cacheline_size); + sr_wm = entries_required + + ironlake_display_srwm_info.guard_size; + + /* calculate the self-refresh watermark for display cursor */ + entries_required = line_count * pixel_size * 64; + entries_required = DIV_ROUND_UP(entries_required, + ironlake_cursor_srwm_info.cacheline_size); + cursor_wm = entries_required + + ironlake_cursor_srwm_info.guard_size; + + /* configure watermark and enable self-refresh */ + reg_value = I915_READ(WM1_LP_ILK); + reg_value &= ~(WM1_LP_LATENCY_MASK | WM1_LP_SR_MASK | + WM1_LP_CURSOR_MASK); + reg_value |= WM1_LP_SR_EN | + (ilk_sr_latency << WM1_LP_LATENCY_SHIFT) | + (sr_wm << WM1_LP_SR_SHIFT) | cursor_wm; + + I915_WRITE(WM1_LP_ILK, reg_value); + DRM_DEBUG_KMS("self-refresh watermark: display plane %d " + "cursor %d\n", sr_wm, cursor_wm); + + } else { + /* Turn off self refresh if both pipes are enabled */ + I915_WRITE(WM1_LP_ILK, I915_READ(WM1_LP_ILK) & ~WM1_LP_SR_EN); + } +} /** * intel_update_watermarks - update FIFO watermark values based on current modes * @@ -2881,12 +3236,6 @@ static void intel_update_watermarks(struct drm_device *dev) if (enabled <= 0) return; - /* Single plane configs can enable self refresh */ - if (enabled == 1 && IS_PINEVIEW(dev)) - pineview_enable_cxsr(dev, sr_clock, pixel_size); - else if (IS_PINEVIEW(dev)) - pineview_disable_cxsr(dev); - dev_priv->display.update_wm(dev, planea_clock, planeb_clock, sr_hdisplay, pixel_size); } @@ -2916,14 +3265,15 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, int dspsize_reg = (plane == 0) ? DSPASIZE : DSPBSIZE; int dsppos_reg = (plane == 0) ? DSPAPOS : DSPBPOS; int pipesrc_reg = (pipe == 0) ? PIPEASRC : PIPEBSRC; - int refclk, num_outputs = 0; + int refclk, num_connectors = 0; intel_clock_t clock, reduced_clock; u32 dpll = 0, fp = 0, fp2 = 0, dspcntr, pipeconf; bool ok, has_reduced_clock = false, is_sdvo = false, is_dvo = false; bool is_crt = false, is_lvds = false, is_tv = false, is_dp = false; bool is_edp = false; struct drm_mode_config *mode_config = &dev->mode_config; - struct drm_connector *connector; + struct drm_encoder *encoder; + struct intel_encoder *intel_encoder = NULL; const intel_limit_t *limit; int ret; struct fdi_m_n m_n = {0}; @@ -2934,6 +3284,8 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, int pch_fp_reg = (pipe == 0) ? PCH_FPA0 : PCH_FPB0; int pch_dpll_reg = (pipe == 0) ? PCH_DPLL_A : PCH_DPLL_B; int fdi_rx_reg = (pipe == 0) ? FDI_RXA_CTL : FDI_RXB_CTL; + int fdi_tx_reg = (pipe == 0) ? FDI_TXA_CTL : FDI_TXB_CTL; + int trans_dpll_sel = (pipe == 0) ? 0 : 1; int lvds_reg = LVDS; u32 temp; int sdvo_pixel_multiply; @@ -2941,20 +3293,21 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, drm_vblank_pre_modeset(dev, pipe); - list_for_each_entry(connector, &mode_config->connector_list, head) { - struct intel_output *intel_output = to_intel_output(connector); + list_for_each_entry(encoder, &mode_config->encoder_list, head) { - if (!connector->encoder || connector->encoder->crtc != crtc) + if (!encoder || encoder->crtc != crtc) continue; - switch (intel_output->type) { + intel_encoder = enc_to_intel_encoder(encoder); + + switch (intel_encoder->type) { case INTEL_OUTPUT_LVDS: is_lvds = true; break; case INTEL_OUTPUT_SDVO: case INTEL_OUTPUT_HDMI: is_sdvo = true; - if (intel_output->needs_tv_clock) + if (intel_encoder->needs_tv_clock) is_tv = true; break; case INTEL_OUTPUT_DVO: @@ -2974,10 +3327,10 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, break; } - num_outputs++; + num_connectors++; } - if (is_lvds && dev_priv->lvds_use_ssc && num_outputs < 2) { + if (is_lvds && dev_priv->lvds_use_ssc && num_connectors < 2) { refclk = dev_priv->lvds_ssc_freq * 1000; DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n", refclk / 1000); @@ -3042,14 +3395,12 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, /* FDI link */ if (HAS_PCH_SPLIT(dev)) { - int lane, link_bw, bpp; + int lane = 0, link_bw, bpp; /* eDP doesn't require FDI link, so just set DP M/N according to current link config */ if (is_edp) { - struct drm_connector *edp; target_clock = mode->clock; - edp = intel_pipe_get_output(crtc); - intel_edp_link_config(to_intel_output(edp), + intel_edp_link_config(intel_encoder, &lane, &link_bw); } else { /* DP over FDI requires target mode clock @@ -3058,7 +3409,6 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, target_clock = mode->clock; else target_clock = adjusted_mode->clock; - lane = 4; link_bw = 270000; } @@ -3110,6 +3460,18 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, bpp = 24; } + if (!lane) { + /* + * Account for spread spectrum to avoid + * oversubscribing the link. Max center spread + * is 2.5%; use 5% for safety's sake. + */ + u32 bps = target_clock * bpp * 21 / 20; + lane = bps / (link_bw * 8) + 1; + } + + intel_crtc->fdi_lanes = lane; + ironlake_compute_m_n(bpp, lane, target_clock, link_bw, &m_n); } @@ -3230,7 +3592,7 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, /* XXX: just matching BIOS for now */ /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ dpll |= 3; - else if (is_lvds && dev_priv->lvds_use_ssc && num_outputs < 2) + else if (is_lvds && dev_priv->lvds_use_ssc && num_connectors < 2) dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; else dpll |= PLL_REF_INPUT_DREFCLK; @@ -3264,11 +3626,6 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, pipeconf &= ~PIPEACONF_DOUBLE_WIDE; } - dspcntr |= DISPLAY_PLANE_ENABLE; - pipeconf |= PIPEACONF_ENABLE; - dpll |= DPLL_VCO_ENABLE; - - /* Disable the panel fitter if it was on our pipe */ if (!HAS_PCH_SPLIT(dev) && intel_panel_fitter_pipe(dev) == pipe) I915_WRITE(PFIT_CONTROL, 0); @@ -3291,6 +3648,18 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, udelay(150); } + /* enable transcoder DPLL */ + if (HAS_PCH_CPT(dev)) { + temp = I915_READ(PCH_DPLL_SEL); + if (trans_dpll_sel == 0) + temp |= (TRANSA_DPLL_ENABLE | TRANSA_DPLLA_SEL); + else + temp |= (TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL); + I915_WRITE(PCH_DPLL_SEL, temp); + I915_READ(PCH_DPLL_SEL); + udelay(150); + } + /* The LVDS pin pair needs to be on before the DPLLs are enabled. * This is an exception to the general rule that mode_set doesn't turn * things on. @@ -3302,7 +3671,18 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, lvds_reg = PCH_LVDS; lvds = I915_READ(lvds_reg); - lvds |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP | LVDS_PIPEB_SELECT; + lvds |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; + if (pipe == 1) { + if (HAS_PCH_CPT(dev)) + lvds |= PORT_TRANS_B_SEL_CPT; + else + lvds |= LVDS_PIPEB_SELECT; + } else { + if (HAS_PCH_CPT(dev)) + lvds &= ~PORT_TRANS_SEL_MASK; + else + lvds &= ~LVDS_PIPEB_SELECT; + } /* set the corresponsding LVDS_BORDER bit */ lvds |= dev_priv->lvds_border_bits; /* Set the B0-B3 data pairs corresponding to whether we're going to @@ -3320,14 +3700,16 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, /* set the dithering flag */ if (IS_I965G(dev)) { if (dev_priv->lvds_dither) { - if (HAS_PCH_SPLIT(dev)) + if (HAS_PCH_SPLIT(dev)) { pipeconf |= PIPE_ENABLE_DITHER; - else + pipeconf |= PIPE_DITHER_TYPE_ST01; + } else lvds |= LVDS_ENABLE_DITHER; } else { - if (HAS_PCH_SPLIT(dev)) + if (HAS_PCH_SPLIT(dev)) { pipeconf &= ~PIPE_ENABLE_DITHER; - else + pipeconf &= ~PIPE_DITHER_TYPE_MASK; + } else lvds &= ~LVDS_ENABLE_DITHER; } } @@ -3336,6 +3718,20 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, } if (is_dp) intel_dp_set_m_n(crtc, mode, adjusted_mode); + else if (HAS_PCH_SPLIT(dev)) { + /* For non-DP output, clear any trans DP clock recovery setting.*/ + if (pipe == 0) { + I915_WRITE(TRANSA_DATA_M1, 0); + I915_WRITE(TRANSA_DATA_N1, 0); + I915_WRITE(TRANSA_DP_LINK_M1, 0); + I915_WRITE(TRANSA_DP_LINK_N1, 0); + } else { + I915_WRITE(TRANSB_DATA_M1, 0); + I915_WRITE(TRANSB_DATA_N1, 0); + I915_WRITE(TRANSB_DP_LINK_M1, 0); + I915_WRITE(TRANSB_DP_LINK_N1, 0); + } + } if (!is_edp) { I915_WRITE(fp_reg, fp); @@ -3410,6 +3806,18 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, /* enable FDI RX PLL too */ temp = I915_READ(fdi_rx_reg); I915_WRITE(fdi_rx_reg, temp | FDI_RX_PLL_ENABLE); + I915_READ(fdi_rx_reg); + udelay(200); + + /* enable FDI TX PLL too */ + temp = I915_READ(fdi_tx_reg); + I915_WRITE(fdi_tx_reg, temp | FDI_TX_PLL_ENABLE); + I915_READ(fdi_tx_reg); + + /* enable FDI RX PCDCLK */ + temp = I915_READ(fdi_rx_reg); + I915_WRITE(fdi_rx_reg, temp | FDI_SEL_PCDCLK); + I915_READ(fdi_rx_reg); udelay(200); } } @@ -3510,7 +3918,7 @@ static int intel_crtc_cursor_set(struct drm_crtc *crtc, if (!bo) return -ENOENT; - obj_priv = bo->driver_private; + obj_priv = to_intel_bo(bo); if (bo->size < width * height * 4) { DRM_ERROR("buffer is to small\n"); @@ -3654,9 +4062,9 @@ static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, * detection. * * It will be up to the load-detect code to adjust the pipe as appropriate for - * its requirements. The pipe will be connected to no other outputs. + * its requirements. The pipe will be connected to no other encoders. * - * Currently this code will only succeed if there is a pipe with no outputs + * Currently this code will only succeed if there is a pipe with no encoders * configured for it. In the future, it could choose to temporarily disable * some outputs to free up a pipe for its use. * @@ -3669,14 +4077,15 @@ static struct drm_display_mode load_detect_mode = { 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC), }; -struct drm_crtc *intel_get_load_detect_pipe(struct intel_output *intel_output, +struct drm_crtc *intel_get_load_detect_pipe(struct intel_encoder *intel_encoder, + struct drm_connector *connector, struct drm_display_mode *mode, int *dpms_mode) { struct intel_crtc *intel_crtc; struct drm_crtc *possible_crtc; struct drm_crtc *supported_crtc =NULL; - struct drm_encoder *encoder = &intel_output->enc; + struct drm_encoder *encoder = &intel_encoder->enc; struct drm_crtc *crtc = NULL; struct drm_device *dev = encoder->dev; struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; @@ -3728,8 +4137,8 @@ struct drm_crtc *intel_get_load_detect_pipe(struct intel_output *intel_output, } encoder->crtc = crtc; - intel_output->base.encoder = encoder; - intel_output->load_detect_temp = true; + connector->encoder = encoder; + intel_encoder->load_detect_temp = true; intel_crtc = to_intel_crtc(crtc); *dpms_mode = intel_crtc->dpms_mode; @@ -3754,23 +4163,24 @@ struct drm_crtc *intel_get_load_detect_pipe(struct intel_output *intel_output, return crtc; } -void intel_release_load_detect_pipe(struct intel_output *intel_output, int dpms_mode) +void intel_release_load_detect_pipe(struct intel_encoder *intel_encoder, + struct drm_connector *connector, int dpms_mode) { - struct drm_encoder *encoder = &intel_output->enc; + struct drm_encoder *encoder = &intel_encoder->enc; struct drm_device *dev = encoder->dev; struct drm_crtc *crtc = encoder->crtc; struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; - if (intel_output->load_detect_temp) { + if (intel_encoder->load_detect_temp) { encoder->crtc = NULL; - intel_output->base.encoder = NULL; - intel_output->load_detect_temp = false; + connector->encoder = NULL; + intel_encoder->load_detect_temp = false; crtc->enabled = drm_helper_crtc_in_use(crtc); drm_helper_disable_unused_functions(dev); } - /* Switch crtc and output back off if necessary */ + /* Switch crtc and encoder back off if necessary */ if (crtc->enabled && dpms_mode != DRM_MODE_DPMS_ON) { if (encoder->crtc == crtc) encoder_funcs->dpms(encoder, dpms_mode); @@ -4155,7 +4565,7 @@ void intel_finish_page_flip(struct drm_device *dev, int pipe) work = intel_crtc->unpin_work; if (work == NULL || !work->pending) { if (work && !work->pending) { - obj_priv = work->pending_flip_obj->driver_private; + obj_priv = to_intel_bo(work->pending_flip_obj); DRM_DEBUG_DRIVER("flip finish: %p (%d) not pending?\n", obj_priv, atomic_read(&obj_priv->pending_flip)); @@ -4180,7 +4590,7 @@ void intel_finish_page_flip(struct drm_device *dev, int pipe) spin_unlock_irqrestore(&dev->event_lock, flags); - obj_priv = work->pending_flip_obj->driver_private; + obj_priv = to_intel_bo(work->pending_flip_obj); /* Initial scanout buffer will have a 0 pending flip count */ if ((atomic_read(&obj_priv->pending_flip) == 0) || @@ -4251,7 +4661,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, ret = intel_pin_and_fence_fb_obj(dev, obj); if (ret != 0) { DRM_DEBUG_DRIVER("flip queue: %p pin & fence failed\n", - obj->driver_private); + to_intel_bo(obj)); kfree(work); intel_crtc->unpin_work = NULL; mutex_unlock(&dev->struct_mutex); @@ -4265,7 +4675,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, crtc->fb = fb; i915_gem_object_flush_write_domain(obj); drm_vblank_get(dev, intel_crtc->pipe); - obj_priv = obj->driver_private; + obj_priv = to_intel_bo(obj); atomic_inc(&obj_priv->pending_flip); work->pending_flip_obj = obj; @@ -4391,15 +4801,15 @@ struct drm_crtc *intel_get_crtc_from_pipe(struct drm_device *dev, int pipe) return crtc; } -static int intel_connector_clones(struct drm_device *dev, int type_mask) +static int intel_encoder_clones(struct drm_device *dev, int type_mask) { int index_mask = 0; - struct drm_connector *connector; + struct drm_encoder *encoder; int entry = 0; - list_for_each_entry(connector, &dev->mode_config.connector_list, head) { - struct intel_output *intel_output = to_intel_output(connector); - if (type_mask & intel_output->clone_mask) + list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { + struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder); + if (type_mask & intel_encoder->clone_mask) index_mask |= (1 << entry); entry++; } @@ -4410,7 +4820,7 @@ static int intel_connector_clones(struct drm_device *dev, int type_mask) static void intel_setup_outputs(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; - struct drm_connector *connector; + struct drm_encoder *encoder; intel_crt_init(dev); @@ -4425,9 +4835,8 @@ static void intel_setup_outputs(struct drm_device *dev) intel_dp_init(dev, DP_A); if (I915_READ(HDMIB) & PORT_DETECTED) { - /* check SDVOB */ - /* found = intel_sdvo_init(dev, HDMIB); */ - found = 0; + /* PCH SDVOB multiplex with HDMIB */ + found = intel_sdvo_init(dev, PCH_SDVOB); if (!found) intel_hdmi_init(dev, HDMIB); if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED)) @@ -4493,23 +4902,18 @@ static void intel_setup_outputs(struct drm_device *dev) if (SUPPORTS_TV(dev)) intel_tv_init(dev); - list_for_each_entry(connector, &dev->mode_config.connector_list, head) { - struct intel_output *intel_output = to_intel_output(connector); - struct drm_encoder *encoder = &intel_output->enc; + list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { + struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder); - encoder->possible_crtcs = intel_output->crtc_mask; - encoder->possible_clones = intel_connector_clones(dev, - intel_output->clone_mask); + encoder->possible_crtcs = intel_encoder->crtc_mask; + encoder->possible_clones = intel_encoder_clones(dev, + intel_encoder->clone_mask); } } static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb) { struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); - struct drm_device *dev = fb->dev; - - if (fb->fbdev) - intelfb_remove(dev, fb); drm_framebuffer_cleanup(fb); drm_gem_object_unreference_unlocked(intel_fb->obj); @@ -4532,18 +4936,13 @@ static const struct drm_framebuffer_funcs intel_fb_funcs = { .create_handle = intel_user_framebuffer_create_handle, }; -int intel_framebuffer_create(struct drm_device *dev, - struct drm_mode_fb_cmd *mode_cmd, - struct drm_framebuffer **fb, - struct drm_gem_object *obj) +int intel_framebuffer_init(struct drm_device *dev, + struct intel_framebuffer *intel_fb, + struct drm_mode_fb_cmd *mode_cmd, + struct drm_gem_object *obj) { - struct intel_framebuffer *intel_fb; int ret; - intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); - if (!intel_fb) - return -ENOMEM; - ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs); if (ret) { DRM_ERROR("framebuffer init failed %d\n", ret); @@ -4551,40 +4950,41 @@ int intel_framebuffer_create(struct drm_device *dev, } drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd); - intel_fb->obj = obj; - - *fb = &intel_fb->base; - return 0; } - static struct drm_framebuffer * intel_user_framebuffer_create(struct drm_device *dev, struct drm_file *filp, struct drm_mode_fb_cmd *mode_cmd) { struct drm_gem_object *obj; - struct drm_framebuffer *fb; + struct intel_framebuffer *intel_fb; int ret; obj = drm_gem_object_lookup(dev, filp, mode_cmd->handle); if (!obj) return NULL; - ret = intel_framebuffer_create(dev, mode_cmd, &fb, obj); + intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); + if (!intel_fb) + return NULL; + + ret = intel_framebuffer_init(dev, intel_fb, + mode_cmd, obj); if (ret) { drm_gem_object_unreference_unlocked(obj); + kfree(intel_fb); return NULL; } - return fb; + return &intel_fb->base; } static const struct drm_mode_config_funcs intel_mode_funcs = { .fb_create = intel_user_framebuffer_create, - .fb_changed = intelfb_probe, + .output_poll_changed = intel_fb_output_poll_changed, }; static struct drm_gem_object * @@ -4593,7 +4993,7 @@ intel_alloc_power_context(struct drm_device *dev) struct drm_gem_object *pwrctx; int ret; - pwrctx = drm_gem_object_alloc(dev, 4096); + pwrctx = i915_gem_alloc_object(dev, 4096); if (!pwrctx) { DRM_DEBUG("failed to alloc power context, RC6 disabled\n"); return NULL; @@ -4717,6 +5117,39 @@ void intel_init_clock_gating(struct drm_device *dev) * specs, but enable as much else as we can. */ if (HAS_PCH_SPLIT(dev)) { + uint32_t dspclk_gate = VRHUNIT_CLOCK_GATE_DISABLE; + + if (IS_IRONLAKE(dev)) { + /* Required for FBC */ + dspclk_gate |= DPFDUNIT_CLOCK_GATE_DISABLE; + /* Required for CxSR */ + dspclk_gate |= DPARBUNIT_CLOCK_GATE_DISABLE; + + I915_WRITE(PCH_3DCGDIS0, + MARIUNIT_CLOCK_GATE_DISABLE | + SVSMUNIT_CLOCK_GATE_DISABLE); + } + + I915_WRITE(PCH_DSPCLK_GATE_D, dspclk_gate); + + /* + * According to the spec the following bits should be set in + * order to enable memory self-refresh + * The bit 22/21 of 0x42004 + * The bit 5 of 0x42020 + * The bit 15 of 0x45000 + */ + if (IS_IRONLAKE(dev)) { + I915_WRITE(ILK_DISPLAY_CHICKEN2, + (I915_READ(ILK_DISPLAY_CHICKEN2) | + ILK_DPARB_GATE | ILK_VSDPFD_FULL)); + I915_WRITE(ILK_DSPCLK_GATE, + (I915_READ(ILK_DSPCLK_GATE) | + ILK_DPARB_CLK_GATE)); + I915_WRITE(DISP_ARB_CTL, + (I915_READ(DISP_ARB_CTL) | + DISP_FBC_WM_DIS)); + } return; } else if (IS_G4X(dev)) { uint32_t dspclk_gate; @@ -4764,14 +5197,14 @@ void intel_init_clock_gating(struct drm_device *dev) struct drm_i915_gem_object *obj_priv = NULL; if (dev_priv->pwrctx) { - obj_priv = dev_priv->pwrctx->driver_private; + obj_priv = to_intel_bo(dev_priv->pwrctx); } else { struct drm_gem_object *pwrctx; pwrctx = intel_alloc_power_context(dev); if (pwrctx) { dev_priv->pwrctx = pwrctx; - obj_priv = pwrctx->driver_private; + obj_priv = to_intel_bo(pwrctx); } } @@ -4794,13 +5227,12 @@ static void intel_init_display(struct drm_device *dev) else dev_priv->display.dpms = i9xx_crtc_dpms; - /* Only mobile has FBC, leave pointers NULL for other chips */ - if (IS_MOBILE(dev)) { + if (I915_HAS_FBC(dev)) { if (IS_GM45(dev)) { dev_priv->display.fbc_enabled = g4x_fbc_enabled; dev_priv->display.enable_fbc = g4x_enable_fbc; dev_priv->display.disable_fbc = g4x_disable_fbc; - } else if (IS_I965GM(dev) || IS_I945GM(dev) || IS_I915GM(dev)) { + } else if (IS_I965GM(dev)) { dev_priv->display.fbc_enabled = i8xx_fbc_enabled; dev_priv->display.enable_fbc = i8xx_enable_fbc; dev_priv->display.disable_fbc = i8xx_disable_fbc; @@ -4832,23 +5264,46 @@ static void intel_init_display(struct drm_device *dev) i830_get_display_clock_speed; /* For FIFO watermark updates */ - if (HAS_PCH_SPLIT(dev)) - dev_priv->display.update_wm = NULL; - else if (IS_G4X(dev)) + if (HAS_PCH_SPLIT(dev)) { + if (IS_IRONLAKE(dev)) { + if (I915_READ(MLTR_ILK) & ILK_SRLT_MASK) + dev_priv->display.update_wm = ironlake_update_wm; + else { + DRM_DEBUG_KMS("Failed to get proper latency. " + "Disable CxSR\n"); + dev_priv->display.update_wm = NULL; + } + } else + dev_priv->display.update_wm = NULL; + } else if (IS_PINEVIEW(dev)) { + if (!intel_get_cxsr_latency(IS_PINEVIEW_G(dev), + dev_priv->fsb_freq, + dev_priv->mem_freq)) { + DRM_INFO("failed to find known CxSR latency " + "(found fsb freq %d, mem freq %d), " + "disabling CxSR\n", + dev_priv->fsb_freq, dev_priv->mem_freq); + /* Disable CxSR and never update its watermark again */ + pineview_disable_cxsr(dev); + dev_priv->display.update_wm = NULL; + } else + dev_priv->display.update_wm = pineview_update_wm; + } else if (IS_G4X(dev)) dev_priv->display.update_wm = g4x_update_wm; else if (IS_I965G(dev)) dev_priv->display.update_wm = i965_update_wm; - else if (IS_I9XX(dev) || IS_MOBILE(dev)) { + else if (IS_I9XX(dev)) { dev_priv->display.update_wm = i9xx_update_wm; dev_priv->display.get_fifo_size = i9xx_get_fifo_size; + } else if (IS_I85X(dev)) { + dev_priv->display.update_wm = i9xx_update_wm; + dev_priv->display.get_fifo_size = i85x_get_fifo_size; } else { - if (IS_I85X(dev)) - dev_priv->display.get_fifo_size = i85x_get_fifo_size; - else if (IS_845G(dev)) + dev_priv->display.update_wm = i830_update_wm; + if (IS_845G(dev)) dev_priv->display.get_fifo_size = i845_get_fifo_size; else dev_priv->display.get_fifo_size = i830_get_fifo_size; - dev_priv->display.update_wm = i830_update_wm; } } @@ -4907,13 +5362,6 @@ void intel_modeset_init(struct drm_device *dev) (unsigned long)dev); intel_setup_overlay(dev); - - if (IS_PINEVIEW(dev) && !intel_get_cxsr_latency(IS_PINEVIEW_G(dev), - dev_priv->fsb_freq, - dev_priv->mem_freq)) - DRM_INFO("failed to find known CxSR latency " - "(found fsb freq %d, mem freq %d), disabling CxSR\n", - dev_priv->fsb_freq, dev_priv->mem_freq); } void intel_modeset_cleanup(struct drm_device *dev) @@ -4924,6 +5372,9 @@ void intel_modeset_cleanup(struct drm_device *dev) mutex_lock(&dev->struct_mutex); + drm_kms_helper_poll_fini(dev); + intel_fbdev_fini(dev); + list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { /* Skip inactive CRTCs */ if (!crtc->fb) @@ -4942,7 +5393,7 @@ void intel_modeset_cleanup(struct drm_device *dev) if (dev_priv->pwrctx) { struct drm_i915_gem_object *obj_priv; - obj_priv = dev_priv->pwrctx->driver_private; + obj_priv = to_intel_bo(dev_priv->pwrctx); I915_WRITE(PWRCTXA, obj_priv->gtt_offset &~ PWRCTX_EN); I915_READ(PWRCTXA); i915_gem_object_unpin(dev_priv->pwrctx); @@ -4958,14 +5409,29 @@ void intel_modeset_cleanup(struct drm_device *dev) } -/* current intel driver doesn't take advantage of encoders - always give back the encoder for the connector -*/ -struct drm_encoder *intel_best_encoder(struct drm_connector *connector) +/* + * Return which encoder is currently attached for connector. + */ +struct drm_encoder *intel_attached_encoder (struct drm_connector *connector) { - struct intel_output *intel_output = to_intel_output(connector); + struct drm_mode_object *obj; + struct drm_encoder *encoder; + int i; - return &intel_output->enc; + for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { + if (connector->encoder_ids[i] == 0) + break; + + obj = drm_mode_object_find(connector->dev, + connector->encoder_ids[i], + DRM_MODE_OBJECT_ENCODER); + if (!obj) + continue; + + encoder = obj_to_encoder(obj); + return encoder; + } + return NULL; } /* |