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[87.106.117.14]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48feb00e5easm36399545e9.13.2026.05.16.04.06.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 16 May 2026 04:06:54 -0700 (PDT) From: Julian Orth Date: Sat, 16 May 2026 13:06:11 +0200 Subject: [PATCH 08/12] drm/syncobj: add drm_syncobj_query Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260516-jorth-syncobj-v1-8-88ede9d98a81@gmail.com> References: <20260516-jorth-syncobj-v1-0-88ede9d98a81@gmail.com> In-Reply-To: <20260516-jorth-syncobj-v1-0-88ede9d98a81@gmail.com> To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Sumit Semwal , =?utf-8?q?Christian_K=C3=B6nig?= , Jonathan Corbet , Shuah Khan , Arnd Bergmann , Greg Kroah-Hartman Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linaro-mm-sig@lists.linaro.org, linux-doc@vger.kernel.org, wayland-devel@lists.freedesktop.org, ju.orth@gmail.com X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1778929602; l=3038; i=ju.orth@gmail.com; s=20251120; h=from:subject:message-id; bh=u/7AwpljxtH4IVP0O+P5dyfoAPoN+qqc7x1nJCbL2qA=; b=Z99DZxu195EeP3vO6X1kysFQ8YqTJJCA0BtkhBQFSClYANqqlJRzUiJ2Mte4dsbxSoaJ7uZfc SeQCmRzeltDByjvV1yhoKMIXpDXzFzH7PGzJ6lguaIs7JV/fN5LYMoH X-Developer-Key: i=ju.orth@gmail.com; a=ed25519; pk=uM2SS4lelkuIoYHc7v9N9bgBZ3hS632zJS2xjRJLPLI= This makes the logic from drm_syncobj_query_ioctl available to callers that already have an array of drm_syncobj. Signed-off-by: Julian Orth --- drivers/gpu/drm/drm_syncobj.c | 32 +++++++++++++++++++++++++++----- include/drm/drm_syncobj.h | 2 ++ 2 files changed, 29 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/drm_syncobj.c b/drivers/gpu/drm/drm_syncobj.c index 948084f56c32..9b7ecc2978f5 100644 --- a/drivers/gpu/drm/drm_syncobj.c +++ b/drivers/gpu/drm/drm_syncobj.c @@ -1773,8 +1773,6 @@ int drm_syncobj_query_ioctl(struct drm_device *dev, void *data, { struct drm_syncobj_timeline_array *args = data; struct drm_syncobj **syncobjs; - uint64_t __user *points = u64_to_user_ptr(args->points); - uint32_t i; int ret; if (!drm_core_check_feature(dev, DRIVER_SYNCOBJ_TIMELINE)) @@ -1793,7 +1791,31 @@ int drm_syncobj_query_ioctl(struct drm_device *dev, void *data, if (ret < 0) return ret; - for (i = 0; i < args->count_handles; i++) { + ret = drm_syncobj_query(syncobjs, args->points, + args->count_handles, args->flags); + + drm_syncobj_array_free(syncobjs, args->count_handles); + + return ret; +} + +/** + * drm_syncobj_query - query timeline points of syncobjs + * @syncobjs: array of syncobjs + * @user_points: user pointer to array of timeline points + * @count: number of syncobjs + * @flags: DRM_SYNCOBJ_QUERY_FLAGS_LAST_SUBMITTED or 0 + * + * Queries the timeline point of each syncobj and writes it to @points. + */ +int drm_syncobj_query(struct drm_syncobj **syncobjs, u64 user_points, + u32 count, u32 flags) +{ + uint64_t __user *points = u64_to_user_ptr(user_points); + uint32_t i; + int ret = 0; + + for (i = 0; i < count; i++) { struct dma_fence_chain *chain; struct dma_fence *fence; uint64_t point; @@ -1804,7 +1826,7 @@ int drm_syncobj_query_ioctl(struct drm_device *dev, void *data, struct dma_fence *iter, *last_signaled = dma_fence_get(fence); - if (args->flags & + if (flags & DRM_SYNCOBJ_QUERY_FLAGS_LAST_SUBMITTED) { point = fence->seqno; } else { @@ -1832,7 +1854,7 @@ int drm_syncobj_query_ioctl(struct drm_device *dev, void *data, if (ret) break; } - drm_syncobj_array_free(syncobjs, args->count_handles); return ret; } +EXPORT_SYMBOL(drm_syncobj_query); diff --git a/include/drm/drm_syncobj.h b/include/drm/drm_syncobj.h index a9216ea07946..da237ca3e61f 100644 --- a/include/drm/drm_syncobj.h +++ b/include/drm/drm_syncobj.h @@ -141,6 +141,8 @@ int drm_syncobj_transfer(struct drm_syncobj *src, u64 src_point, u32 flags); int drm_syncobj_timeline_signal(struct drm_syncobj **syncobjs, u64 user_points, u32 count); +int drm_syncobj_query(struct drm_syncobj **syncobjs, u64 user_points, + u32 count, u32 flags); void drm_syncobj_free(struct kref *kref); int drm_syncobj_create(struct drm_syncobj **out_syncobj, uint32_t flags, struct dma_fence *fence); -- 2.54.0