From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Zimmermann Subject: [PATCH v3 03/19] drm: Add |struct drm_gem_vram_object| callbacks for |struct drm_driver| Date: Mon, 29 Apr 2019 16:43:25 +0200 Message-ID: <20190429144341.12615-4-tzimmermann__10002.9670445778$1556549225$gmane$org@suse.de> References: <20190429144341.12615-1-tzimmermann@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20190429144341.12615-1-tzimmermann@suse.de> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org To: daniel@ffwll.ch, airlied@linux.ie, kraxel@redhat.com, christian.koenig@amd.com, ray.huang@amd.com, Jerry.Zhang@amd.com, hdegoede@redhat.com, z.liuxinliang@hisilicon.com, zourongrong@gmail.com, kong.kongxinwei@hisilicon.com, puck.chen@hisilicon.com Cc: Thomas Zimmermann , dri-devel@lists.freedesktop.org, virtualization@lists.linux-foundation.org List-Id: virtualization@lists.linuxfoundation.org The provided helpers can be used for the respective callback functions in |struct drm_driver|. v2: * documentation fixes Signed-off-by: Thomas Zimmermann --- drivers/gpu/drm/drm_gem_vram_helper.c | 48 +++++++++++++++++++++++++++ include/drm/drm_gem_vram_helper.h | 10 ++++++ 2 files changed, 58 insertions(+) diff --git a/drivers/gpu/drm/drm_gem_vram_helper.c b/drivers/gpu/drm/drm_gem_vram_helper.c index fcf6e78d92f7..31bf6c1079b0 100644 --- a/drivers/gpu/drm/drm_gem_vram_helper.c +++ b/drivers/gpu/drm/drm_gem_vram_helper.c @@ -458,3 +458,51 @@ int drm_gem_vram_bo_driver_verify_access(struct ttm_buffer_object *bo, filp->private_data); } EXPORT_SYMBOL(drm_gem_vram_bo_driver_verify_access); + +/* + * Helpers for struct drm_driver + */ + +/** + * drm_gem_vram_driver_gem_free_object_unlocked() - \ + Implements &struct drm_driver.gem_free_object_unlocked + * @gem: GEM object. Refers to &struct drm_gem_vram_object.gem + */ +void drm_gem_vram_driver_gem_free_object_unlocked(struct drm_gem_object *gem) +{ + struct drm_gem_vram_object *gbo = drm_gem_vram_of_gem(gem); + drm_gem_vram_put(gbo); +} +EXPORT_SYMBOL(drm_gem_vram_driver_gem_free_object_unlocked); + +/** + * drm_gem_vram_driver_dumb_mmap_offset() - \ + Implements &struct drm_driver.dumb_mmap_offset + * @file: DRM file pointer. + * @dev: DRM device. + * @handle: GEM handle + * @offset: Returns the mapping's memory offset on success + * + * Returns: + * 0 on success, or + * a negative errno code otherwise. + */ +int drm_gem_vram_driver_dumb_mmap_offset(struct drm_file *file, + struct drm_device *dev, + uint32_t handle, uint64_t *offset) +{ + struct drm_gem_object *gem; + struct drm_gem_vram_object *gbo; + + gem = drm_gem_object_lookup(file, handle); + if (!gem) + return -ENOENT; + + gbo = drm_gem_vram_of_gem(gem); + *offset = drm_gem_vram_mmap_offset(gbo); + + drm_gem_object_put_unlocked(gem); + + return 0; +} +EXPORT_SYMBOL(drm_gem_vram_driver_dumb_mmap_offset); diff --git a/include/drm/drm_gem_vram_helper.h b/include/drm/drm_gem_vram_helper.h index 4872edb09fe9..99982590e32a 100644 --- a/include/drm/drm_gem_vram_helper.h +++ b/include/drm/drm_gem_vram_helper.h @@ -99,4 +99,14 @@ void drm_gem_vram_bo_driver_evict_flags(struct ttm_buffer_object *bo, int drm_gem_vram_bo_driver_verify_access(struct ttm_buffer_object *bo, struct file *filp); +/* + * Helpers for struct drm_driver + */ + +void drm_gem_vram_driver_gem_free_object_unlocked(struct drm_gem_object *gem); + +int drm_gem_vram_driver_dumb_mmap_offset(struct drm_file *file, + struct drm_device *dev, + uint32_t handle, uint64_t *offset); + #endif -- 2.21.0