From: Dave Airlie Date: Wed, 24 Dec 2014 03:11:17 +0000 (+1000) Subject: Revert "drm/gem: Warn on illegal use of the dumb buffer interface v2" X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=da6b51d007da17fd394405055e2f0109ec5f05f4;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git Revert "drm/gem: Warn on illegal use of the dumb buffer interface v2" This reverts commit 355a70183848f21198e9f6296bd646df3478a26d. This had some bad side effects under normal operation, and should have been dropped earlier. Signed-off-by: Dave Airlie --- diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index fc8cfddbf232..574057cd1d09 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -1586,7 +1586,7 @@ static struct drm_driver driver = { .gem_prime_import = i915_gem_prime_import, .dumb_create = i915_gem_dumb_create, - .dumb_map_offset = i915_gem_dumb_map_offset, + .dumb_map_offset = i915_gem_mmap_gtt, .dumb_destroy = drm_gem_dumb_destroy, .ioctls = i915_ioctls, .fops = &i915_driver_fops, diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 63bcda5541ec..70d0f0f06f1a 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -2501,9 +2501,8 @@ void i915_vma_move_to_active(struct i915_vma *vma, int i915_gem_dumb_create(struct drm_file *file_priv, struct drm_device *dev, struct drm_mode_create_dumb *args); -int i915_gem_dumb_map_offset(struct drm_file *file_priv, - struct drm_device *dev, uint32_t handle, - uint64_t *offset); +int i915_gem_mmap_gtt(struct drm_file *file_priv, struct drm_device *dev, + uint32_t handle, uint64_t *offset); /** * Returns true if seq1 is later than seq2. */ diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 4a9faea626db..52adcb680be3 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -401,7 +401,6 @@ static int i915_gem_create(struct drm_file *file, struct drm_device *dev, uint64_t size, - bool dumb, uint32_t *handle_p) { struct drm_i915_gem_object *obj; @@ -417,7 +416,6 @@ i915_gem_create(struct drm_file *file, if (obj == NULL) return -ENOMEM; - obj->base.dumb = dumb; ret = drm_gem_handle_create(file, &obj->base, &handle); /* drop reference from allocate - handle holds it now */ drm_gem_object_unreference_unlocked(&obj->base); @@ -437,7 +435,7 @@ i915_gem_dumb_create(struct drm_file *file, args->pitch = ALIGN(args->width * DIV_ROUND_UP(args->bpp, 8), 64); args->size = args->pitch * args->height; return i915_gem_create(file, dev, - args->size, true, &args->handle); + args->size, &args->handle); } /** @@ -450,7 +448,7 @@ i915_gem_create_ioctl(struct drm_device *dev, void *data, struct drm_i915_gem_create *args = data; return i915_gem_create(file, dev, - args->size, false, &args->handle); + args->size, &args->handle); } static inline int @@ -1840,10 +1838,10 @@ static void i915_gem_object_free_mmap_offset(struct drm_i915_gem_object *obj) drm_gem_free_mmap_offset(&obj->base); } -static int +int i915_gem_mmap_gtt(struct drm_file *file, struct drm_device *dev, - uint32_t handle, bool dumb, + uint32_t handle, uint64_t *offset) { struct drm_i915_private *dev_priv = dev->dev_private; @@ -1860,13 +1858,6 @@ i915_gem_mmap_gtt(struct drm_file *file, goto unlock; } - /* - * We don't allow dumb mmaps on objects created using another - * interface. - */ - WARN_ONCE(dumb && !(obj->base.dumb || obj->base.import_attach), - "Illegal dumb map of accelerated buffer.\n"); - if (obj->base.size > dev_priv->gtt.mappable_end) { ret = -E2BIG; goto out; @@ -1891,15 +1882,6 @@ unlock: return ret; } -int -i915_gem_dumb_map_offset(struct drm_file *file, - struct drm_device *dev, - uint32_t handle, - uint64_t *offset) -{ - return i915_gem_mmap_gtt(file, dev, handle, true, offset); -} - /** * i915_gem_mmap_gtt_ioctl - prepare an object for GTT mmap'ing * @dev: DRM device @@ -1921,7 +1903,7 @@ i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data, { struct drm_i915_gem_mmap_gtt *args = data; - return i915_gem_mmap_gtt(file, dev, args->handle, false, &args->offset); + return i915_gem_mmap_gtt(file, dev, args->handle, &args->offset); } static inline int diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c index f06027ba3ee5..11738316394a 100644 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c @@ -121,9 +121,6 @@ eb_lookup_vmas(struct eb_vmas *eb, goto err; } - WARN_ONCE(obj->base.dumb, - "GPU use of dumb buffer is illegal.\n"); - drm_gem_object_reference(&obj->base); list_add_tail(&obj->obj_exec_link, &objects); } diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index 5d93902a91ab..f8042433752b 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -876,7 +876,6 @@ nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev, if (ret) return ret; - bo->gem.dumb = true; ret = drm_gem_handle_create(file_priv, &bo->gem, &args->handle); drm_gem_object_unreference_unlocked(&bo->gem); return ret; @@ -892,14 +891,6 @@ nouveau_display_dumb_map_offset(struct drm_file *file_priv, gem = drm_gem_object_lookup(dev, file_priv, handle); if (gem) { struct nouveau_bo *bo = nouveau_gem_object(gem); - - /* - * We don't allow dumb mmaps on objects created using another - * interface. - */ - WARN_ONCE(!(gem->dumb || gem->import_attach), - "Illegal dumb map of accelerated buffer.\n"); - *poffset = drm_vma_node_offset_addr(&bo->bo.vma_node); drm_gem_object_unreference_unlocked(gem); return 0; diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c index 28d51a22a4bf..42c34babc2e5 100644 --- a/drivers/gpu/drm/nouveau/nouveau_gem.c +++ b/drivers/gpu/drm/nouveau/nouveau_gem.c @@ -444,9 +444,6 @@ validate_list(struct nouveau_channel *chan, struct nouveau_cli *cli, list_for_each_entry(nvbo, list, entry) { struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index]; - WARN_ONCE(nvbo->gem.dumb, - "GPU use of dumb buffer is illegal.\n"); - ret = nouveau_gem_set_domain(&nvbo->gem, b->read_domains, b->write_domains, b->valid_domains); diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c index fe48f229043e..a46f73737994 100644 --- a/drivers/gpu/drm/radeon/radeon_gem.c +++ b/drivers/gpu/drm/radeon/radeon_gem.c @@ -394,10 +394,9 @@ int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data, return r; } -static int radeon_mode_mmap(struct drm_file *filp, - struct drm_device *dev, - uint32_t handle, bool dumb, - uint64_t *offset_p) +int radeon_mode_dumb_mmap(struct drm_file *filp, + struct drm_device *dev, + uint32_t handle, uint64_t *offset_p) { struct drm_gem_object *gobj; struct radeon_bo *robj; @@ -406,14 +405,6 @@ static int radeon_mode_mmap(struct drm_file *filp, if (gobj == NULL) { return -ENOENT; } - - /* - * We don't allow dumb mmaps on objects created using another - * interface. - */ - WARN_ONCE(dumb && !(gobj->dumb || gobj->import_attach), - "Illegal dumb map of GPU buffer.\n"); - robj = gem_to_radeon_bo(gobj); if (radeon_ttm_tt_has_userptr(robj->tbo.ttm)) { drm_gem_object_unreference_unlocked(gobj); @@ -424,20 +415,12 @@ static int radeon_mode_mmap(struct drm_file *filp, return 0; } -int radeon_mode_dumb_mmap(struct drm_file *filp, - struct drm_device *dev, - uint32_t handle, uint64_t *offset_p) -{ - return radeon_mode_mmap(filp, dev, handle, true, offset_p); -} - int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) { struct drm_radeon_gem_mmap *args = data; - return radeon_mode_mmap(filp, dev, args->handle, false, - &args->addr_ptr); + return radeon_mode_dumb_mmap(filp, dev, args->handle, &args->addr_ptr); } int radeon_gem_busy_ioctl(struct drm_device *dev, void *data, @@ -763,7 +746,6 @@ int radeon_mode_dumb_create(struct drm_file *file_priv, return -ENOMEM; r = drm_gem_handle_create(file_priv, gobj, &handle); - gobj->dumb = true; /* drop reference from allocate - handle holds it now */ drm_gem_object_unreference_unlocked(gobj); if (r) { diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c index 7d68223eb469..86fc56434b28 100644 --- a/drivers/gpu/drm/radeon/radeon_object.c +++ b/drivers/gpu/drm/radeon/radeon_object.c @@ -529,9 +529,6 @@ int radeon_bo_list_validate(struct radeon_device *rdev, u32 current_domain = radeon_mem_type_to_domain(bo->tbo.mem.mem_type); - WARN_ONCE(bo->gem_base.dumb, - "GPU use of dumb buffer is illegal.\n"); - /* Check if this buffer will be moved and don't move it * if we have moved too many buffers for this IB already. * diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h index 780511a459c0..1e6ae1458f7a 100644 --- a/include/drm/drm_gem.h +++ b/include/drm/drm_gem.h @@ -119,13 +119,6 @@ struct drm_gem_object { * simply leave it as NULL. */ struct dma_buf_attachment *import_attach; - - /** - * dumb - created as dumb buffer - * Whether the gem object was created using the dumb buffer interface - * as such it may not be used for GPU rendering. - */ - bool dumb; }; void drm_gem_object_release(struct drm_gem_object *obj);