nv50: add compute-related MP perf counters on G84+

These compute-related MP performance counters have been reverse
engineered using CUPTI which is part of NVIDIA CUDA.

As for nvc0, we use a compute kernel to read out those performance
counters, and the command stream to configure them. Note that Tesla
only exposes 4 MP performance counters, while Fermi has 8.

Only G84+ is supported because G80 is an old and weird card.

Tested on G84, G96, G200, MCP79 and GT218 with glxgears, glxspheres64,
xonotic-glx, heaven and valley.

Signed-off-by: Samuel Pitoiset <[email protected]>
Tested-by: Pierre Moreau <[email protected]>
Acked-by: Ilia Mirkin <[email protected]>

1 files changed, 23 insertions, 0 deletions

diff --git a/src/gallium/drivers/nouveau/nv50/nv50_query.c b/src/gallium/drivers/nouveau/nv50/nv50_query.c
index dd9b85b7208..c31bf728c61 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_query.c
+++ b/src/gallium/drivers/nouveau/nv50/nv50_query.c
@@ -153,3 +153,26 @@ nv50_init_query_functions(struct nv50_context *nv50)
    pipe->get_query_result = nv50_get_query_result;
    pipe->render_condition = nv50_render_condition;
 }
+
+int
+nv50_screen_get_driver_query_info(struct pipe_screen *pscreen,
+                                  unsigned id,
+                                  struct pipe_driver_query_info *info)
+{
+   struct nv50_screen *screen = nv50_screen(pscreen);
+   int num_hw_queries = 0;
+
+   num_hw_queries = nv50_hw_get_driver_query_info(screen, 0, NULL);
+
+   if (!info)
+      return num_hw_queries;
+
+   /* Init default values. */
+   info->name = "this_is_not_the_query_you_are_looking_for";
+   info->query_type = 0xdeadd01d;
+   info->max_value.u64 = 0;
+   info->type = PIPE_DRIVER_QUERY_TYPE_UINT64;
+   info->group_id = -1;
+
+   return nv50_hw_get_driver_query_info(screen, id, info);
+}