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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 28 Aug 2024 17:27:32.9183 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 46a14335-6687-4667-be29-08dcc786b36b X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[63.35.35.123];Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: DB1PEPF00050A00.eurprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: GV2PR08MB8196 Content-Type: text/plain; charset="utf-8" From: Ketil Johnsen Similar to how the kernel driver notifies userspace about syncobj modifications, the reverse notification is also necessary to let panthor re-evaluate any queues (GPU or XGS) that were blocked on wait operations. Signed-off-by: Mihail Atanassov Signed-off-by: Ketil Johnsen --- drivers/gpu/drm/panthor/panthor_drv.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/drivers/gpu/drm/panthor/panthor_drv.c b/drivers/gpu/drm/pantho= r/panthor_drv.c index 681ac09b6343..1734a52dc3b5 100644 --- a/drivers/gpu/drm/panthor/panthor_drv.c +++ b/drivers/gpu/drm/panthor/panthor_drv.c @@ -1426,6 +1426,28 @@ static int panthor_ioctl_xgs_queue_submit(struct drm= _device *ddev, void *data, return ret; } =20 +static int panthor_ioctl_sync_update(struct drm_device *ddev, void *data, + struct drm_file *file) +{ + struct drm_panthor_sync_update *args =3D data; + struct panthor_device *ptdev =3D container_of(ddev, struct panthor_device= , base); + struct panthor_file *pfile =3D file->driver_priv; + + if (args->pad) + return -EINVAL; + + if (pm_runtime_get_if_in_use(ddev->dev)) { + /* All sync wait ops will be re-evaluated when we ding the global doorbe= ll */ + gpu_write(ptdev, CSF_DOORBELL(0), 1); + pm_runtime_put_autosuspend(ddev->dev); + } + + panthor_sched_sync_update(ptdev); + panthor_xgs_queue_pool_recheck(pfile); + + return 0; +} + static int panthor_open(struct drm_device *ddev, struct drm_file *file) { @@ -1508,6 +1530,7 @@ static const struct drm_ioctl_desc panthor_drm_driver= _ioctls[] =3D { PANTHOR_IOCTL(XGS_QUEUE_CREATE, xgs_queue_create, DRM_RENDER_ALLOW), PANTHOR_IOCTL(XGS_QUEUE_DESTROY, xgs_queue_destroy, DRM_RENDER_ALLOW), PANTHOR_IOCTL(XGS_QUEUE_SUBMIT, xgs_queue_submit, DRM_RENDER_ALLOW), + PANTHOR_IOCTL(SYNC_UPDATE, sync_update, DRM_RENDER_ALLOW), }; =20 static int panthor_mmap(struct file *filp, struct vm_area_struct *vma) --=20 2.45.0