radeon/compute: Implement PIPE_COMPUTE_CAP_MAX_CLOCK_FREQUENCY

Igor Gnatenko:
  v2: in define RADEON_INFO_MAX_SCLK use 0x1a instead of 0x19 (upstream changes)

Bruno Jiménez:
  v3: Convert the frequency to MHz from kHz after getting it in
  'do_winsys_init'

Signed-off-by: Igor Gnatenko <[email protected]>
Reviewed-by: Tom Stellard <[email protected]>

2 files changed, 6 insertions, 0 deletions

diff --git a/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c b/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
index b53bebae993..76183160ddc 100644
--- a/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
+++ b/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
@@ -317,6 +317,11 @@ static boolean do_winsys_init(struct radeon_drm_winsys *ws)
     ws->info.gart_size = gem_info.gart_size;
     ws->info.vram_size = gem_info.vram_size;
 
+    /* Get max clock frequency info and convert it to MHz */
+    radeon_get_drm_value(ws->fd, RADEON_INFO_MAX_SCLK, NULL,
+                         &ws->info.max_sclk);
+    ws->info.max_sclk /= 1000;
+
     ws->num_cpus = sysconf(_SC_NPROCESSORS_ONLN);
 
     /* Generation-specific queries. */
diff --git a/src/gallium/winsys/radeon/drm/radeon_winsys.h b/src/gallium/winsys/radeon/drm/radeon_winsys.h
index fe0617b682b..1cb17bb9e01 100644
--- a/src/gallium/winsys/radeon/drm/radeon_winsys.h
+++ b/src/gallium/winsys/radeon/drm/radeon_winsys.h
@@ -196,6 +196,7 @@ struct radeon_info {
     enum chip_class             chip_class;
     uint32_t                    gart_size;
     uint32_t                    vram_size;
+    uint32_t                    max_sclk;
 
     uint32_t                    drm_major; /* version */
     uint32_t                    drm_minor;