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Mon, 25 Mar 2019 08:33:00 +0000 Received-SPF: None (protection.outlook.com: amd.com does not designate permitted sender hosts) Received: from SATLEXCHOV02.amd.com (165.204.84.17) by CO1NAM03FT034.mail.protection.outlook.com (10.152.80.177) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.20.1730.9 via Frontend Transport; Mon, 25 Mar 2019 08:32:59 +0000 Received: from zhoucm1.amd.com (10.34.1.3) by SATLEXCHOV02.amd.com (10.181.40.72) with Microsoft SMTP Server id 14.3.389.1; Mon, 25 Mar 2019 03:32:58 -0500 From: Chunming Zhou To: , , , , , Subject: [PATCH 4/9] drm/syncobj: add timeline payload query ioctl v6 Date: Mon, 25 Mar 2019 16:32:19 +0800 Message-ID: <20190325083224.2983-4-david1.zhou@amd.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190325083224.2983-1-david1.zhou@amd.com> References: <20190325083224.2983-1-david1.zhou@amd.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:165.204.84.17; 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a=rsa-sha256; c=relaxed/relaxed; d=amdcloud.onmicrosoft.com; s=selector1-amd-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=lGWNQCZbe38E653Sk2Ia3h72P0+MfQhQDYQWAA0IgPI=; b=YS3ZfXAaBzPh5I48rDd5LPpFW4BdA3ddDKCmWviyJ4RHW5FEWotExvZBrvZjBQOh+yl8HBBrQ2pkiTM2J+0n70aKqlo6fXgCOOSmmQjr5MypH8v00dJ6sr0cYefuLHLFH5niDKkOzZHBgPcHZDu+Gai5tvPu7VGNYrsxwVbF9ls= X-Mailman-Original-Authentication-Results: spf=none (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; jlekstrand.net; dkim=none (message not signed) header.d=none;jlekstrand.net; dmarc=permerror action=none header.from=amd.com; X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Dave Airlie Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP user mode can query timeline payload. v2: check return value of copy_to_user v3: handle querying entry by entry v4: rebase on new chain container, simplify interface v5: query last signaled timeline point, not last point. v6: add unorder point check Signed-off-by: Chunming Zhou Cc: Tobias Hector Cc: Jason Ekstrand Cc: Dave Airlie Cc: Chris Wilson Cc: Lionel Landwerlin --- drivers/gpu/drm/drm_internal.h | 2 ++ drivers/gpu/drm/drm_ioctl.c | 2 ++ drivers/gpu/drm/drm_syncobj.c | 62 ++++++++++++++++++++++++++++++++++ include/uapi/drm/drm.h | 10 ++++++ 4 files changed, 76 insertions(+) diff --git a/drivers/gpu/drm/drm_internal.h b/drivers/gpu/drm/drm_internal.h index 331ac6225b58..695179bb88dc 100644 --- a/drivers/gpu/drm/drm_internal.h +++ b/drivers/gpu/drm/drm_internal.h @@ -188,6 +188,8 @@ int drm_syncobj_reset_ioctl(struct drm_device *dev, void *data, struct drm_file *file_private); int drm_syncobj_signal_ioctl(struct drm_device *dev, void *data, struct drm_file *file_private); +int drm_syncobj_query_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_private); /* drm_framebuffer.c */ void drm_framebuffer_print_info(struct drm_printer *p, unsigned int indent, diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c index c984654646fa..7a534c184e52 100644 --- a/drivers/gpu/drm/drm_ioctl.c +++ b/drivers/gpu/drm/drm_ioctl.c @@ -694,6 +694,8 @@ static const struct drm_ioctl_desc drm_ioctls[] = { DRM_UNLOCKED|DRM_RENDER_ALLOW), DRM_IOCTL_DEF(DRM_IOCTL_SYNCOBJ_SIGNAL, drm_syncobj_signal_ioctl, DRM_UNLOCKED|DRM_RENDER_ALLOW), + DRM_IOCTL_DEF(DRM_IOCTL_SYNCOBJ_QUERY, drm_syncobj_query_ioctl, + DRM_UNLOCKED|DRM_RENDER_ALLOW), DRM_IOCTL_DEF(DRM_IOCTL_CRTC_GET_SEQUENCE, drm_crtc_get_sequence_ioctl, DRM_UNLOCKED), DRM_IOCTL_DEF(DRM_IOCTL_CRTC_QUEUE_SEQUENCE, drm_crtc_queue_sequence_ioctl, DRM_UNLOCKED), DRM_IOCTL_DEF(DRM_IOCTL_MODE_CREATE_LEASE, drm_mode_create_lease_ioctl, DRM_MASTER|DRM_UNLOCKED), diff --git a/drivers/gpu/drm/drm_syncobj.c b/drivers/gpu/drm/drm_syncobj.c index eae51978cda4..0e62a793c8dd 100644 --- a/drivers/gpu/drm/drm_syncobj.c +++ b/drivers/gpu/drm/drm_syncobj.c @@ -1064,3 +1064,65 @@ drm_syncobj_signal_ioctl(struct drm_device *dev, void *data, return ret; } + +int drm_syncobj_query_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_private) +{ + 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)) + return -ENODEV; + + if (args->pad != 0) + return -EINVAL; + + if (args->count_handles == 0) + return -EINVAL; + + ret = drm_syncobj_array_find(file_private, + u64_to_user_ptr(args->handles), + args->count_handles, + &syncobjs); + if (ret < 0) + return ret; + + for (i = 0; i < args->count_handles; i++) { + struct dma_fence_chain *chain; + struct dma_fence *fence; + uint64_t point; + + 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) + break; + dma_fence_put(last_signaled); + last_signaled = dma_fence_get(iter); + if (!to_dma_fence_chain(last_signaled)->prev_seqno) + /* It is most likely that timeline has + * unorder points. */ + break; + } + 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; + } + ret = copy_to_user(&points[i], &point, sizeof(uint64_t)); + ret = ret ? -EFAULT : 0; + if (ret) + break; + } + drm_syncobj_array_free(syncobjs, args->count_handles); + + return ret; +} diff --git a/include/uapi/drm/drm.h b/include/uapi/drm/drm.h index 44ebcdd9bd1d..c62be0840ba5 100644 --- a/include/uapi/drm/drm.h +++ b/include/uapi/drm/drm.h @@ -767,6 +767,14 @@ struct drm_syncobj_array { __u32 pad; }; +struct drm_syncobj_timeline_array { + __u64 handles; + __u64 points; + __u32 count_handles; + __u32 pad; +}; + + /* Query current scanout sequence number */ struct drm_crtc_get_sequence { __u32 crtc_id; /* requested crtc_id */ @@ -924,6 +932,8 @@ extern "C" { #define DRM_IOCTL_MODE_REVOKE_LEASE DRM_IOWR(0xC9, struct drm_mode_revoke_lease) #define DRM_IOCTL_SYNCOBJ_TIMELINE_WAIT DRM_IOWR(0xCA, struct drm_syncobj_timeline_wait) +#define DRM_IOCTL_SYNCOBJ_QUERY DRM_IOWR(0xCB, struct drm_syncobj_timeline_array) + /** * Device specific ioctls should only be in their respective headers * The device specific ioctl range is from 0x40 to 0x9f.