1 files changed, 0 insertions, 328 deletions
diff --git a/drivers/gpu/drm/cirrus/cirrus_main.c b/drivers/gpu/drm/cirrus/cirrus_main.c
deleted file mode 100644
index 57f8fe6d020b..000000000000
--- a/drivers/gpu/drm/cirrus/cirrus_main.c
+++ /dev/null
@@ -1,328 +0,0 @@
-/*
- * Copyright 2012 Red Hat
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License version 2. See the file COPYING in the main
- * directory of this archive for more details.
- *
- * Authors: Matthew Garrett
- *          Dave Airlie
- */
-#include <drm/drmP.h>
-#include <drm/drm_crtc_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
-
-#include "cirrus_drv.h"
-
-static const struct drm_framebuffer_funcs cirrus_fb_funcs = {
-	.create_handle = drm_gem_fb_create_handle,
-	.destroy = drm_gem_fb_destroy,
-};
-
-int cirrus_framebuffer_init(struct drm_device *dev,
-			    struct drm_framebuffer *gfb,
-			    const struct drm_mode_fb_cmd2 *mode_cmd,
-			    struct drm_gem_object *obj)
-{
-	int ret;
-
-	drm_helper_mode_fill_fb_struct(dev, gfb, mode_cmd);
-	gfb->obj[0] = obj;
-	ret = drm_framebuffer_init(dev, gfb, &cirrus_fb_funcs);
-	if (ret) {
-		DRM_ERROR("drm_framebuffer_init failed: %d\n", ret);
-		return ret;
-	}
-	return 0;
-}
-
-static struct drm_framebuffer *
-cirrus_user_framebuffer_create(struct drm_device *dev,
-			       struct drm_file *filp,
-			       const struct drm_mode_fb_cmd2 *mode_cmd)
-{
-	struct cirrus_device *cdev = dev->dev_private;
-	struct drm_gem_object *obj;
-	struct drm_framebuffer *fb;
-	u32 bpp;
-	int ret;
-
-	bpp = drm_format_plane_cpp(mode_cmd->pixel_format, 0) * 8;
-
-	if (!cirrus_check_framebuffer(cdev, mode_cmd->width, mode_cmd->height,
-				      bpp, mode_cmd->pitches[0]))
-		return ERR_PTR(-EINVAL);
-
-	obj = drm_gem_object_lookup(filp, mode_cmd->handles[0]);
-	if (obj == NULL)
-		return ERR_PTR(-ENOENT);
-
-	fb = kzalloc(sizeof(*fb), GFP_KERNEL);
-	if (!fb) {
-		drm_gem_object_put_unlocked(obj);
-		return ERR_PTR(-ENOMEM);
-	}
-
-	ret = cirrus_framebuffer_init(dev, fb, mode_cmd, obj);
-	if (ret) {
-		drm_gem_object_put_unlocked(obj);
-		kfree(fb);
-		return ERR_PTR(ret);
-	}
-	return fb;
-}
-
-static const struct drm_mode_config_funcs cirrus_mode_funcs = {
-	.fb_create = cirrus_user_framebuffer_create,
-};
-
-/* Unmap the framebuffer from the core and release the memory */
-static void cirrus_vram_fini(struct cirrus_device *cdev)
-{
-	iounmap(cdev->rmmio);
-	cdev->rmmio = NULL;
-	if (cdev->mc.vram_base)
-		release_mem_region(cdev->mc.vram_base, cdev->mc.vram_size);
-}
-
-/* Map the framebuffer from the card and configure the core */
-static int cirrus_vram_init(struct cirrus_device *cdev)
-{
-	/* BAR 0 is VRAM */
-	cdev->mc.vram_base = pci_resource_start(cdev->dev->pdev, 0);
-	cdev->mc.vram_size = pci_resource_len(cdev->dev->pdev, 0);
-
-	if (!request_mem_region(cdev->mc.vram_base, cdev->mc.vram_size,
-				"cirrusdrmfb_vram")) {
-		DRM_ERROR("can't reserve VRAM\n");
-		return -ENXIO;
-	}
-
-	return 0;
-}
-
-/*
- * Our emulated hardware has two sets of memory. One is video RAM and can
- * simply be used as a linear framebuffer - the other provides mmio access
- * to the display registers. The latter can also be accessed via IO port
- * access, but we map the range and use mmio to program them instead
- */
-
-int cirrus_device_init(struct cirrus_device *cdev,
-		       struct drm_device *ddev,
-		       struct pci_dev *pdev, uint32_t flags)
-{
-	int ret;
-
-	cdev->dev = ddev;
-	cdev->flags = flags;
-
-	/* Hardcode the number of CRTCs to 1 */
-	cdev->num_crtc = 1;
-
-	/* BAR 0 is the framebuffer, BAR 1 contains registers */
-	cdev->rmmio_base = pci_resource_start(cdev->dev->pdev, 1);
-	cdev->rmmio_size = pci_resource_len(cdev->dev->pdev, 1);
-
-	if (!request_mem_region(cdev->rmmio_base, cdev->rmmio_size,
-				"cirrusdrmfb_mmio")) {
-		DRM_ERROR("can't reserve mmio registers\n");
-		return -ENOMEM;
-	}
-
-	cdev->rmmio = ioremap(cdev->rmmio_base, cdev->rmmio_size);
-
-	if (cdev->rmmio == NULL)
-		return -ENOMEM;
-
-	ret = cirrus_vram_init(cdev);
-	if (ret) {
-		release_mem_region(cdev->rmmio_base, cdev->rmmio_size);
-		return ret;
-	}
-
-	return 0;
-}
-
-void cirrus_device_fini(struct cirrus_device *cdev)
-{
-	release_mem_region(cdev->rmmio_base, cdev->rmmio_size);
-	cirrus_vram_fini(cdev);
-}
-
-/*
- * Functions here will be called by the core once it's bound the driver to
- * a PCI device
- */
-
-int cirrus_driver_load(struct drm_device *dev, unsigned long flags)
-{
-	struct cirrus_device *cdev;
-	int r;
-
-	cdev = kzalloc(sizeof(struct cirrus_device), GFP_KERNEL);
-	if (cdev == NULL)
-		return -ENOMEM;
-	dev->dev_private = (void *)cdev;
-
-	r = cirrus_device_init(cdev, dev, dev->pdev, flags);
-	if (r) {
-		dev_err(&dev->pdev->dev, "Fatal error during GPU init: %d\n", r);
-		goto out;
-	}
-
-	r = cirrus_mm_init(cdev);
-	if (r) {
-		dev_err(&dev->pdev->dev, "fatal err on mm init\n");
-		goto out;
-	}
-
-	/*
-	 * cirrus_modeset_init() is initializing/registering the emulated fbdev
-	 * and DRM internals can access/test some of the fields in
-	 * mode_config->funcs as part of the fbdev registration process.
-	 * Make sure dev->mode_config.funcs is properly set to avoid
-	 * dereferencing a NULL pointer.
-	 * FIXME: mode_config.funcs assignment should probably be done in
-	 * cirrus_modeset_init() (that's a common pattern seen in other DRM
-	 * drivers).
-	 */
-	dev->mode_config.funcs = &cirrus_mode_funcs;
-	r = cirrus_modeset_init(cdev);
-	if (r) {
-		dev_err(&dev->pdev->dev, "Fatal error during modeset init: %d\n", r);
-		goto out;
-	}
-
-	return 0;
-out:
-	cirrus_driver_unload(dev);
-	return r;
-}
-
-void cirrus_driver_unload(struct drm_device *dev)
-{
-	struct cirrus_device *cdev = dev->dev_private;
-
-	if (cdev == NULL)
-		return;
-	cirrus_modeset_fini(cdev);
-	cirrus_mm_fini(cdev);
-	cirrus_device_fini(cdev);
-	kfree(cdev);
-	dev->dev_private = NULL;
-}
-
-int cirrus_gem_create(struct drm_device *dev,
-		   u32 size, bool iskernel,
-		   struct drm_gem_object **obj)
-{
-	struct cirrus_bo *cirrusbo;
-	int ret;
-
-	*obj = NULL;
-
-	size = roundup(size, PAGE_SIZE);
-	if (size == 0)
-		return -EINVAL;
-
-	ret = cirrus_bo_create(dev, size, 0, 0, &cirrusbo);
-	if (ret) {
-		if (ret != -ERESTARTSYS)
-			DRM_ERROR("failed to allocate GEM object\n");
-		return ret;
-	}
-	*obj = &cirrusbo->gem;
-	return 0;
-}
-
-int cirrus_dumb_create(struct drm_file *file,
-		    struct drm_device *dev,
-		    struct drm_mode_create_dumb *args)
-{
-	int ret;
-	struct drm_gem_object *gobj;
-	u32 handle;
-
-	args->pitch = args->width * ((args->bpp + 7) / 8);
-	args->size = args->pitch * args->height;
-
-	ret = cirrus_gem_create(dev, args->size, false,
-			     &gobj);
-	if (ret)
-		return ret;
-
-	ret = drm_gem_handle_create(file, gobj, &handle);
-	drm_gem_object_put_unlocked(gobj);
-	if (ret)
-		return ret;
-
-	args->handle = handle;
-	return 0;
-}
-
-static void cirrus_bo_unref(struct cirrus_bo **bo)
-{
-	struct ttm_buffer_object *tbo;
-
-	if ((*bo) == NULL)
-		return;
-
-	tbo = &((*bo)->bo);
-	ttm_bo_put(tbo);
-	*bo = NULL;
-}
-
-void cirrus_gem_free_object(struct drm_gem_object *obj)
-{
-	struct cirrus_bo *cirrus_bo = gem_to_cirrus_bo(obj);
-
-	cirrus_bo_unref(&cirrus_bo);
-}
-
-
-static inline u64 cirrus_bo_mmap_offset(struct cirrus_bo *bo)
-{
-	return drm_vma_node_offset_addr(&bo->bo.vma_node);
-}
-
-int
-cirrus_dumb_mmap_offset(struct drm_file *file,
-		     struct drm_device *dev,
-		     uint32_t handle,
-		     uint64_t *offset)
-{
-	struct drm_gem_object *obj;
-	struct cirrus_bo *bo;
-
-	obj = drm_gem_object_lookup(file, handle);
-	if (obj == NULL)
-		return -ENOENT;
-
-	bo = gem_to_cirrus_bo(obj);
-	*offset = cirrus_bo_mmap_offset(bo);
-
-	drm_gem_object_put_unlocked(obj);
-
-	return 0;
-}
-
-bool cirrus_check_framebuffer(struct cirrus_device *cdev, int width, int height,
-			      int bpp, int pitch)
-{
-	const int max_pitch = 0x1FF << 3; /* (4096 - 1) & ~111b bytes */
-	const int max_size = cdev->mc.vram_size;
-
-	if (bpp > cirrus_bpp)
-		return false;
-	if (bpp > 32)
-		return false;
-
-	if (pitch > max_pitch)
-		return false;
-
-	if (pitch * height > max_size)
-		return false;
-
-	return true;
-}