diff options
Diffstat (limited to 'drivers/gpu/drm/radeon')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_gem.c | 26 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_object.c | 3 |
2 files changed, 25 insertions, 4 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c index c194497aa586..429213b6ed0f 100644 --- a/drivers/gpu/drm/radeon/radeon_gem.c +++ b/drivers/gpu/drm/radeon/radeon_gem.c @@ -394,9 +394,10 @@ int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data, return r; } -int radeon_mode_dumb_mmap(struct drm_file *filp, - struct drm_device *dev, - uint32_t handle, uint64_t *offset_p) +static int radeon_mode_mmap(struct drm_file *filp, + struct drm_device *dev, + uint32_t handle, bool dumb, + uint64_t *offset_p) { struct drm_gem_object *gobj; struct radeon_bo *robj; @@ -405,6 +406,14 @@ int radeon_mode_dumb_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); @@ -415,12 +424,20 @@ int radeon_mode_dumb_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_dumb_mmap(filp, dev, args->handle, &args->addr_ptr); + return radeon_mode_mmap(filp, dev, args->handle, false, + &args->addr_ptr); } int radeon_gem_busy_ioctl(struct drm_device *dev, void *data, @@ -682,6 +699,7 @@ 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 33e6c7a89c32..76eedd6a34f0 100644 --- a/drivers/gpu/drm/radeon/radeon_object.c +++ b/drivers/gpu/drm/radeon/radeon_object.c @@ -521,6 +521,9 @@ 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. * |
