Commit f73716fd authored by Mary Guillemard's avatar Mary Guillemard Committed by Steven Price
Browse files

drm/panthor: Add PANTHOR_GROUP_PRIORITY_REALTIME group priority 



This adds a new value to drm_panthor_group_priority exposing the
realtime priority to userspace.

This is required to implement NV_context_priority_realtime in Mesa.

v2:
- Add Steven Price r-b

v3:
- Add Boris Brezillon r-b

Signed-off-by: default avatarMary Guillemard <mary.guillemard@collabora.com>
Reviewed-by: default avatarSteven Price <steven.price@arm.com>
Reviewed-by: default avatarBoris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: default avatarSteven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240909064820.34982-3-mary.guillemard@collabora.com
parent 9f8e1c93

drivers/gpu/drm/panthor/panthor_drv.c

+1 −1
Original line number Diff line number Diff line
@@ -1041,7 +1041,7 @@ static int group_priority_permit(struct drm_file *file, 
				 u8 priority)

{

	/* Ensure that priority is valid */

	if (priority > PANTHOR_GROUP_PRIORITY_HIGH)

	if (priority > PANTHOR_GROUP_PRIORITY_REALTIME)

		return -EINVAL;



	/* Medium priority and below are always allowed */

drivers/gpu/drm/panthor/panthor_sched.c

+0 −2
Original line number Diff line number Diff line
@@ -137,8 +137,6 @@ enum panthor_csg_priority { 
	 * non-real-time groups. When such a group becomes executable,

	 * it will evict the group with the lowest non-rt priority if

	 * there's no free group slot available.

	 *

	 * Currently not exposed to userspace.

	 */

	PANTHOR_CSG_PRIORITY_RT,

include/uapi/drm/panthor_drm.h

+7 −0
Original line number Diff line number Diff line
@@ -720,6 +720,13 @@ enum drm_panthor_group_priority { 
	 * Requires CAP_SYS_NICE or DRM_MASTER.

	 */

	PANTHOR_GROUP_PRIORITY_HIGH,



	/**

	 * @PANTHOR_GROUP_PRIORITY_REALTIME: Realtime priority group.

	 *

	 * Requires CAP_SYS_NICE or DRM_MASTER.

	 */

	PANTHOR_GROUP_PRIORITY_REALTIME,

};



/**