[Nouveau] [RFC PATCH 7/8] nv50: expose global performance counters to the HUD

[Samuel Pitoiset]

Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
---
 src/gallium/drivers/nouveau/nv50/nv50_query.c  | 41 ++++++++++++++++++++++++++
 src/gallium/drivers/nouveau/nv50/nv50_screen.c |  1 +
 src/gallium/drivers/nouveau/nv50/nv50_screen.h |  3 ++
 3 files changed, 45 insertions(+)

diff --git a/src/gallium/drivers/nouveau/nv50/nv50_query.c b/src/gallium/drivers/nouveau/nv50/nv50_query.c
index b9d2914..062d427 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_query.c
+++ b/src/gallium/drivers/nouveau/nv50/nv50_query.c
@@ -1535,6 +1535,47 @@ nv50_hw_pm_query_result(struct nv50_context *nv50, struct nv50_query *q,
    return TRUE;
 }
 
+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 count = 0;
+
+   // TODO: Check DRM version when nvif will be merged in libdrm!
+   if (screen->base.perfmon) {
+      nv50_identify_events(screen);
+      count += NV50_HW_PM_QUERY_COUNT;
+   }
+
+   if (!info)
+      return count;
+
+   /* Init default values. */
+   info->name = "this_is_not_the_query_you_are_looking_for";
+   info->query_type = 0xdeadd01d;
+   info->type = PIPE_DRIVER_QUERY_TYPE_UINT64;
+   info->max_value.u64 = 0;
+   info->group_id = -1;
+
+   if (id < count) {
+      if (screen->base.perfmon) {
+         const struct nv50_hw_pm_query_cfg *cfg =
+            nv50_hw_pm_query_get_cfg(screen, NV50_HW_PM_QUERY(id));
+
+         info->name = cfg->event->name;
+         info->query_type = NV50_HW_PM_QUERY(id);
+         info->max_value.u64 =
+            (cfg->event->display == NV50_HW_PM_EVENT_DISPLAY_RATIO) ? 100 : 0;
+         return 1;
+      }
+   }
+
+   /* User asked for info about non-existing query. */
+   return 0;
+}
+
 void
 nv50_init_query_functions(struct nv50_context *nv50)
 {
diff --git a/src/gallium/drivers/nouveau/nv50/nv50_screen.c b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
index 53817c0..f07798e 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_screen.c
+++ b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
@@ -745,6 +745,7 @@ nv50_screen_create(struct nouveau_device *dev)
    pscreen->get_param = nv50_screen_get_param;
    pscreen->get_shader_param = nv50_screen_get_shader_param;
    pscreen->get_paramf = nv50_screen_get_paramf;
+   pscreen->get_driver_query_info = nv50_screen_get_driver_query_info;
 
    nv50_screen_init_resource_functions(pscreen);
 
diff --git a/src/gallium/drivers/nouveau/nv50/nv50_screen.h b/src/gallium/drivers/nouveau/nv50/nv50_screen.h
index 0449659..69127c0 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_screen.h
+++ b/src/gallium/drivers/nouveau/nv50/nv50_screen.h
@@ -143,6 +143,9 @@ nv50_screen(struct pipe_screen *screen)
 #define NV50_HW_PM_QUERY_TEX_CACHE_HIT                      22
 #define NV50_HW_PM_QUERY_TEX_WAITS_FOR_FB                   23
 
+int nv50_screen_get_driver_query_info(struct pipe_screen *, unsigned,
+                                      struct pipe_driver_query_info *);
+
 boolean nv50_blitter_create(struct nv50_screen *);
 void nv50_blitter_destroy(struct nv50_screen *);
 
-- 
2.4.4