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Wed, 26 Mar 2025 07:39:06 -0700 (PDT) From: Rob Clark To: dri-devel@lists.freedesktop.org Cc: Dmitry Osipenko , Rob Clark , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Sumit Semwal , =?utf-8?q?Christian_K=C3=B6nig?= , linux-kernel@vger.kernel.org (open list), linux-media@vger.kernel.org (open list:DMA BUFFER SHARING FRAMEWORK:Keyword:\bdma_(?:buf|fence|resv)\b), linaro-mm-sig@lists.linaro.org (moderated list:DMA BUFFER SHARING FRAMEWORK:Keyword:\bdma_(?:buf|fence|resv)\b) Subject: [PATCH] drm/syncobj: Extend EXPORT_SYNC_FILE for timeline syncobjs Date: Wed, 26 Mar 2025 07:39:03 -0700 Message-ID: <20250326143903.24380-1-robdclark@gmail.com> X-Mailer: git-send-email 2.49.0 Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Rob Clark Add support for exporting a dma_fence fd for a specific point on a timeline. Signed-off-by: Rob Clark --- drivers/gpu/drm/drm_syncobj.c | 8 ++++++-- include/uapi/drm/drm.h | 2 ++ 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/drm_syncobj.c b/drivers/gpu/drm/drm_syncobj.c index 4f2ab8a7b50f..eb7a2dd2e261 100644 --- a/drivers/gpu/drm/drm_syncobj.c +++ b/drivers/gpu/drm/drm_syncobj.c @@ -762,7 +762,7 @@ static int drm_syncobj_import_sync_file_fence(struct drm_file *file_private, } static int drm_syncobj_export_sync_file(struct drm_file *file_private, - int handle, int *p_fd) + int handle, u64 point, int *p_fd) { int ret; struct dma_fence *fence; @@ -772,7 +772,7 @@ static int drm_syncobj_export_sync_file(struct drm_file *file_private, if (fd < 0) return fd; - ret = drm_syncobj_find_fence(file_private, handle, 0, 0, &fence); + ret = drm_syncobj_find_fence(file_private, handle, point, 0, &fence); if (ret) goto err_put_fd; @@ -882,8 +882,12 @@ drm_syncobj_handle_to_fd_ioctl(struct drm_device *dev, void *data, if (args->flags & DRM_SYNCOBJ_HANDLE_TO_FD_FLAGS_EXPORT_SYNC_FILE) return drm_syncobj_export_sync_file(file_private, args->handle, + args->point, &args->fd); + if (args->point) + return -EINVAL; + return drm_syncobj_handle_to_fd(file_private, args->handle, &args->fd); } diff --git a/include/uapi/drm/drm.h b/include/uapi/drm/drm.h index 7fba37b94401..c71a8f4439f2 100644 --- a/include/uapi/drm/drm.h +++ b/include/uapi/drm/drm.h @@ -912,6 +912,8 @@ struct drm_syncobj_handle { __s32 fd; __u32 pad; + + __u64 point; }; struct drm_syncobj_transfer {