broadcom/vc4: Add support for HW perfmon

The V3D engine provides several perf counters.
Implement ->get_driver_query_[group_]info() so that these counters are
exposed through the GL_AMD_performance_monitor extension.

Signed-off-by: Boris Brezillon <[email protected]>
Signed-off-by: Eric Anholt <[email protected]>

1 files changed, 18 insertions, 0 deletions

diff --git a/src/gallium/drivers/vc4/vc4_context.h b/src/gallium/drivers/vc4/vc4_context.h
index cd404d42c3b..e0317a0e0c0 100644
--- a/src/gallium/drivers/vc4/vc4_context.h
+++ b/src/gallium/drivers/vc4/vc4_context.h
@@ -219,6 +219,13 @@ struct vc4_job_key {
         struct pipe_surface *zsbuf;
 };
 
+struct vc4_hwperfmon {
+        uint32_t id;
+        uint64_t last_seqno;
+        uint8_t events[DRM_VC4_MAX_PERF_COUNTERS];
+        uint64_t counters[DRM_VC4_MAX_PERF_COUNTERS];
+};
+
 /**
  * A complete bin/render job.
  *
@@ -309,6 +316,9 @@ struct vc4_job {
         /** Any flags to be passed in drm_vc4_submit_cl.flags. */
         uint32_t flags;
 
+	/* Performance monitor attached to this job. */
+	struct vc4_hwperfmon *perfmon;
+
         struct vc4_job_key key;
 };
 
@@ -390,6 +400,8 @@ struct vc4_context {
         struct pipe_viewport_state viewport;
         struct vc4_constbuf_stateobj constbuf[PIPE_SHADER_TYPES];
         struct vc4_vertexbuf_stateobj vertexbuf;
+
+        struct vc4_hwperfmon *perfmon;
         /** @} */
 };
 
@@ -447,6 +459,12 @@ vc4_sampler_state(struct pipe_sampler_state *psampler)
         return (struct vc4_sampler_state *)psampler;
 }
 
+int vc4_get_driver_query_group_info(struct pipe_screen *pscreen,
+                                    unsigned index,
+                                    struct pipe_driver_query_group_info *info);
+int vc4_get_driver_query_info(struct pipe_screen *pscreen, unsigned index,
+                              struct pipe_driver_query_info *info);
+
 struct pipe_context *vc4_context_create(struct pipe_screen *pscreen,
                                         void *priv, unsigned flags);
 void vc4_draw_init(struct pipe_context *pctx);