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Diffstat (limited to 'include/uapi/drm/msm_drm.h')
-rw-r--r--include/uapi/drm/msm_drm.h14
1 files changed, 13 insertions, 1 deletions
diff --git a/include/uapi/drm/msm_drm.h b/include/uapi/drm/msm_drm.h
index f075851021c3..6b8fffc28a50 100644
--- a/include/uapi/drm/msm_drm.h
+++ b/include/uapi/drm/msm_drm.h
@@ -73,11 +73,19 @@ struct drm_msm_timespec {
#define MSM_PARAM_MAX_FREQ 0x04
#define MSM_PARAM_TIMESTAMP 0x05
#define MSM_PARAM_GMEM_BASE 0x06
-#define MSM_PARAM_NR_RINGS 0x07
+#define MSM_PARAM_PRIORITIES 0x07 /* The # of priority levels */
#define MSM_PARAM_PP_PGTABLE 0x08 /* => 1 for per-process pagetables, else 0 */
#define MSM_PARAM_FAULTS 0x09
#define MSM_PARAM_SUSPENDS 0x0a
+/* For backwards compat. The original support for preemption was based on
+ * a single ring per priority level so # of priority levels equals the #
+ * of rings. With drm/scheduler providing additional levels of priority,
+ * the number of priorities is greater than the # of rings. The param is
+ * renamed to better reflect this.
+ */
+#define MSM_PARAM_NR_RINGS MSM_PARAM_PRIORITIES
+
struct drm_msm_param {
__u32 pipe; /* in, MSM_PIPE_x */
__u32 param; /* in, MSM_PARAM_x */
@@ -304,6 +312,10 @@ struct drm_msm_gem_madvise {
#define MSM_SUBMITQUEUE_FLAGS (0)
+/*
+ * The submitqueue priority should be between 0 and MSM_PARAM_PRIORITIES-1,
+ * a lower numeric value is higher priority.
+ */
struct drm_msm_submitqueue {
__u32 flags; /* in, MSM_SUBMITQUEUE_x */
__u32 prio; /* in, Priority level */