1 files changed, 0 insertions, 323 deletions

diff --git a/drivers/gpu/drm/bochs/bochs_hw.c b/drivers/gpu/drm/bochs/bochs_hw.c
deleted file mode 100644
index 7d3426d8cc69..000000000000
--- a/drivers/gpu/drm/bochs/bochs_hw.c
+++ /dev/null
@@ -1,323 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- */
-
-#include <linux/pci.h>
-
-#include <drm/drm_drv.h>
-#include <drm/drm_fourcc.h>
-
-#include <video/vga.h>
-#include "bochs.h"
-
-/* ---------------------------------------------------------------------- */
-
-static void bochs_vga_writeb(struct bochs_device *bochs, u16 ioport, u8 val)
-{
-	if (WARN_ON(ioport < 0x3c0 || ioport > 0x3df))
-		return;
-
-	if (bochs->mmio) {
-		int offset = ioport - 0x3c0 + 0x400;
-		writeb(val, bochs->mmio + offset);
-	} else {
-		outb(val, ioport);
-	}
-}
-
-static u8 bochs_vga_readb(struct bochs_device *bochs, u16 ioport)
-{
-	if (WARN_ON(ioport < 0x3c0 || ioport > 0x3df))
-		return 0xff;
-
-	if (bochs->mmio) {
-		int offset = ioport - 0x3c0 + 0x400;
-		return readb(bochs->mmio + offset);
-	} else {
-		return inb(ioport);
-	}
-}
-
-static u16 bochs_dispi_read(struct bochs_device *bochs, u16 reg)
-{
-	u16 ret = 0;
-
-	if (bochs->mmio) {
-		int offset = 0x500 + (reg << 1);
-		ret = readw(bochs->mmio + offset);
-	} else {
-		outw(reg, VBE_DISPI_IOPORT_INDEX);
-		ret = inw(VBE_DISPI_IOPORT_DATA);
-	}
-	return ret;
-}
-
-static void bochs_dispi_write(struct bochs_device *bochs, u16 reg, u16 val)
-{
-	if (bochs->mmio) {
-		int offset = 0x500 + (reg << 1);
-		writew(val, bochs->mmio + offset);
-	} else {
-		outw(reg, VBE_DISPI_IOPORT_INDEX);
-		outw(val, VBE_DISPI_IOPORT_DATA);
-	}
-}
-
-static void bochs_hw_set_big_endian(struct bochs_device *bochs)
-{
-	if (bochs->qext_size < 8)
-		return;
-
-	writel(0xbebebebe, bochs->mmio + 0x604);
-}
-
-static void bochs_hw_set_little_endian(struct bochs_device *bochs)
-{
-	if (bochs->qext_size < 8)
-		return;
-
-	writel(0x1e1e1e1e, bochs->mmio + 0x604);
-}
-
-#ifdef __BIG_ENDIAN
-#define bochs_hw_set_native_endian(_b) bochs_hw_set_big_endian(_b)
-#else
-#define bochs_hw_set_native_endian(_b) bochs_hw_set_little_endian(_b)
-#endif
-
-static int bochs_get_edid_block(void *data, u8 *buf,
-				unsigned int block, size_t len)
-{
-	struct bochs_device *bochs = data;
-	size_t i, start = block * EDID_LENGTH;
-
-	if (start + len > 0x400 /* vga register offset */)
-		return -1;
-
-	for (i = 0; i < len; i++) {
-		buf[i] = readb(bochs->mmio + start + i);
-	}
-	return 0;
-}
-
-int bochs_hw_load_edid(struct bochs_device *bochs)
-{
-	u8 header[8];
-
-	if (!bochs->mmio)
-		return -1;
-
-	/* check header to detect whenever edid support is enabled in qemu */
-	bochs_get_edid_block(bochs, header, 0, ARRAY_SIZE(header));
-	if (drm_edid_header_is_valid(header) != 8)
-		return -1;
-
-	kfree(bochs->edid);
-	bochs->edid = drm_do_get_edid(&bochs->connector,
-				      bochs_get_edid_block, bochs);
-	if (bochs->edid == NULL)
-		return -1;
-
-	return 0;
-}
-
-int bochs_hw_init(struct drm_device *dev)
-{
-	struct bochs_device *bochs = dev->dev_private;
-	struct pci_dev *pdev = to_pci_dev(dev->dev);
-	unsigned long addr, size, mem, ioaddr, iosize;
-	u16 id;
-
-	if (pdev->resource[2].flags & IORESOURCE_MEM) {
-		/* mmio bar with vga and bochs registers present */
-		if (pci_request_region(pdev, 2, "bochs-drm") != 0) {
-			DRM_ERROR("Cannot request mmio region\n");
-			return -EBUSY;
-		}
-		ioaddr = pci_resource_start(pdev, 2);
-		iosize = pci_resource_len(pdev, 2);
-		bochs->mmio = ioremap(ioaddr, iosize);
-		if (bochs->mmio == NULL) {
-			DRM_ERROR("Cannot map mmio region\n");
-			return -ENOMEM;
-		}
-	} else {
-		ioaddr = VBE_DISPI_IOPORT_INDEX;
-		iosize = 2;
-		if (!request_region(ioaddr, iosize, "bochs-drm")) {
-			DRM_ERROR("Cannot request ioports\n");
-			return -EBUSY;
-		}
-		bochs->ioports = 1;
-	}
-
-	id = bochs_dispi_read(bochs, VBE_DISPI_INDEX_ID);
-	mem = bochs_dispi_read(bochs, VBE_DISPI_INDEX_VIDEO_MEMORY_64K)
-		* 64 * 1024;
-	if ((id & 0xfff0) != VBE_DISPI_ID0) {
-		DRM_ERROR("ID mismatch\n");
-		return -ENODEV;
-	}
-
-	if ((pdev->resource[0].flags & IORESOURCE_MEM) == 0)
-		return -ENODEV;
-	addr = pci_resource_start(pdev, 0);
-	size = pci_resource_len(pdev, 0);
-	if (addr == 0)
-		return -ENODEV;
-	if (size != mem) {
-		DRM_ERROR("Size mismatch: pci=%ld, bochs=%ld\n",
-			size, mem);
-		size = min(size, mem);
-	}
-
-	if (pci_request_region(pdev, 0, "bochs-drm") != 0)
-		DRM_WARN("Cannot request framebuffer, boot fb still active?\n");
-
-	bochs->fb_map = ioremap(addr, size);
-	if (bochs->fb_map == NULL) {
-		DRM_ERROR("Cannot map framebuffer\n");
-		return -ENOMEM;
-	}
-	bochs->fb_base = addr;
-	bochs->fb_size = size;
-
-	DRM_INFO("Found bochs VGA, ID 0x%x.\n", id);
-	DRM_INFO("Framebuffer size %ld kB @ 0x%lx, %s @ 0x%lx.\n",
-		 size / 1024, addr,
-		 bochs->ioports ? "ioports" : "mmio",
-		 ioaddr);
-
-	if (bochs->mmio && pdev->revision >= 2) {
-		bochs->qext_size = readl(bochs->mmio + 0x600);
-		if (bochs->qext_size < 4 || bochs->qext_size > iosize) {
-			bochs->qext_size = 0;
-			goto noext;
-		}
-		DRM_DEBUG("Found qemu ext regs, size %ld\n",
-			  bochs->qext_size);
-		bochs_hw_set_native_endian(bochs);
-	}
-
-noext:
-	return 0;
-}
-
-void bochs_hw_fini(struct drm_device *dev)
-{
-	struct bochs_device *bochs = dev->dev_private;
-
-	/* TODO: shot down existing vram mappings */
-
-	if (bochs->mmio)
-		iounmap(bochs->mmio);
-	if (bochs->ioports)
-		release_region(VBE_DISPI_IOPORT_INDEX, 2);
-	if (bochs->fb_map)
-		iounmap(bochs->fb_map);
-	pci_release_regions(to_pci_dev(dev->dev));
-	kfree(bochs->edid);
-}
-
-void bochs_hw_blank(struct bochs_device *bochs, bool blank)
-{
-	DRM_DEBUG_DRIVER("hw_blank %d\n", blank);
-	/* discard ar_flip_flop */
-	(void)bochs_vga_readb(bochs, VGA_IS1_RC);
-	/* blank or unblank; we need only update index and set 0x20 */
-	bochs_vga_writeb(bochs, VGA_ATT_W, blank ? 0 : 0x20);
-}
-
-void bochs_hw_setmode(struct bochs_device *bochs,
-		      struct drm_display_mode *mode)
-{
-	int idx;
-
-	if (!drm_dev_enter(bochs->dev, &idx))
-		return;
-
-	bochs->xres = mode->hdisplay;
-	bochs->yres = mode->vdisplay;
-	bochs->bpp = 32;
-	bochs->stride = mode->hdisplay * (bochs->bpp / 8);
-	bochs->yres_virtual = bochs->fb_size / bochs->stride;
-
-	DRM_DEBUG_DRIVER("%dx%d @ %d bpp, vy %d\n",
-			 bochs->xres, bochs->yres, bochs->bpp,
-			 bochs->yres_virtual);
-
-	bochs_hw_blank(bochs, false);
-
-	bochs_dispi_write(bochs, VBE_DISPI_INDEX_ENABLE,      0);
-	bochs_dispi_write(bochs, VBE_DISPI_INDEX_BPP,         bochs->bpp);
-	bochs_dispi_write(bochs, VBE_DISPI_INDEX_XRES,        bochs->xres);
-	bochs_dispi_write(bochs, VBE_DISPI_INDEX_YRES,        bochs->yres);
-	bochs_dispi_write(bochs, VBE_DISPI_INDEX_BANK,        0);
-	bochs_dispi_write(bochs, VBE_DISPI_INDEX_VIRT_WIDTH,  bochs->xres);
-	bochs_dispi_write(bochs, VBE_DISPI_INDEX_VIRT_HEIGHT,
-			  bochs->yres_virtual);
-	bochs_dispi_write(bochs, VBE_DISPI_INDEX_X_OFFSET,    0);
-	bochs_dispi_write(bochs, VBE_DISPI_INDEX_Y_OFFSET,    0);
-
-	bochs_dispi_write(bochs, VBE_DISPI_INDEX_ENABLE,
-			  VBE_DISPI_ENABLED | VBE_DISPI_LFB_ENABLED);
-
-	drm_dev_exit(idx);
-}
-
-void bochs_hw_setformat(struct bochs_device *bochs,
-			const struct drm_format_info *format)
-{
-	int idx;
-
-	if (!drm_dev_enter(bochs->dev, &idx))
-		return;
-
-	DRM_DEBUG_DRIVER("format %c%c%c%c\n",
-			 (format->format >>  0) & 0xff,
-			 (format->format >>  8) & 0xff,
-			 (format->format >> 16) & 0xff,
-			 (format->format >> 24) & 0xff);
-
-	switch (format->format) {
-	case DRM_FORMAT_XRGB8888:
-		bochs_hw_set_little_endian(bochs);
-		break;
-	case DRM_FORMAT_BGRX8888:
-		bochs_hw_set_big_endian(bochs);
-		break;
-	default:
-		/* should not happen */
-		DRM_ERROR("%s: Huh? Got framebuffer format 0x%x",
-			  __func__, format->format);
-		break;
-	}
-
-	drm_dev_exit(idx);
-}
-
-void bochs_hw_setbase(struct bochs_device *bochs,
-		      int x, int y, int stride, u64 addr)
-{
-	unsigned long offset;
-	unsigned int vx, vy, vwidth, idx;
-
-	if (!drm_dev_enter(bochs->dev, &idx))
-		return;
-
-	bochs->stride = stride;
-	offset = (unsigned long)addr +
-		y * bochs->stride +
-		x * (bochs->bpp / 8);
-	vy = offset / bochs->stride;
-	vx = (offset % bochs->stride) * 8 / bochs->bpp;
-	vwidth = stride * 8 / bochs->bpp;
-
-	DRM_DEBUG_DRIVER("x %d, y %d, addr %llx -> offset %lx, vx %d, vy %d\n",
-			 x, y, addr, offset, vx, vy);
-	bochs_dispi_write(bochs, VBE_DISPI_INDEX_VIRT_WIDTH, vwidth);
-	bochs_dispi_write(bochs, VBE_DISPI_INDEX_X_OFFSET, vx);
-	bochs_dispi_write(bochs, VBE_DISPI_INDEX_Y_OFFSET, vy);
-
-	drm_dev_exit(idx);
-}