From 2093dea3def9d5bf3000697ae3b0ec36c43354e0 Mon Sep 17 00:00:00 2001 From: Chunming Zhou Date: Tue, 30 Jul 2019 21:02:08 +0800 Subject: drm/syncobj: extend syncobj query ability v3 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit user space needs a flexiable query ability. So that umd can get last signaled or submitted point. v2: add sanitizer checking. v3: rebase Change-Id: I6512b430524ebabe715e602a2bf5abb0a7e780ea Signed-off-by: Chunming Zhou Cc: Lionel Landwerlin Cc: Christian König Reviewed-by: Lionel Landwerlin Signed-off-by: Christian König Link: https://patchwork.freedesktop.org/series/64044/ --- drivers/gpu/drm/drm_syncobj.c | 37 ++++++++++++++++++++++--------------- 1 file changed, 22 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/drm_syncobj.c b/drivers/gpu/drm/drm_syncobj.c index 9ec334663c2d..669c93fe2500 100644 --- a/drivers/gpu/drm/drm_syncobj.c +++ b/drivers/gpu/drm/drm_syncobj.c @@ -1280,7 +1280,7 @@ drm_syncobj_timeline_signal_ioctl(struct drm_device *dev, void *data, if (!drm_core_check_feature(dev, DRIVER_SYNCOBJ_TIMELINE)) return -EOPNOTSUPP; - if (args->pad != 0) + if (args->flags != 0) return -EINVAL; if (args->count_handles == 0) @@ -1351,7 +1351,7 @@ int drm_syncobj_query_ioctl(struct drm_device *dev, void *data, if (!drm_core_check_feature(dev, DRIVER_SYNCOBJ_TIMELINE)) return -EOPNOTSUPP; - if (args->pad != 0) + if (args->flags & ~DRM_SYNCOBJ_QUERY_FLAGS_LAST_SUBMITTED) return -EINVAL; if (args->count_handles == 0) @@ -1372,25 +1372,32 @@ int drm_syncobj_query_ioctl(struct drm_device *dev, void *data, fence = drm_syncobj_fence_get(syncobjs[i]); chain = to_dma_fence_chain(fence); if (chain) { - struct dma_fence *iter, *last_signaled = NULL; - - dma_fence_chain_for_each(iter, fence) { - if (iter->context != fence->context) { - dma_fence_put(iter); - /* It is most likely that timeline has - * unorder points. */ - break; + struct dma_fence *iter, *last_signaled = + dma_fence_get(fence); + + if (args->flags & + DRM_SYNCOBJ_QUERY_FLAGS_LAST_SUBMITTED) { + point = fence->seqno; + } else { + dma_fence_chain_for_each(iter, fence) { + if (iter->context != fence->context) { + dma_fence_put(iter); + /* It is most likely that timeline has + * unorder points. */ + break; + } + dma_fence_put(last_signaled); + last_signaled = dma_fence_get(iter); } - dma_fence_put(last_signaled); - last_signaled = dma_fence_get(iter); + point = dma_fence_is_signaled(last_signaled) ? + last_signaled->seqno : + to_dma_fence_chain(last_signaled)->prev_seqno; } - point = dma_fence_is_signaled(last_signaled) ? - last_signaled->seqno : - to_dma_fence_chain(last_signaled)->prev_seqno; dma_fence_put(last_signaled); } else { point = 0; } + dma_fence_put(fence); ret = copy_to_user(&points[i], &point, sizeof(uint64_t)); ret = ret ? -EFAULT : 0; if (ret) -- cgit v1.2.3