drm/radeon/kms: implement timestamp userspace query (v2)
Returns a snapshot of the GPU clock counter. Needed
for certain OpenGL extensions.
v2: agd5f
- address Jerome's comments
- add function documentation
Signed-off-by: Marek Olšák <maraeo@gmail.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/radeon/r600d.h b/drivers/gpu/drm/radeon/r600d.h
index 4b116ae..fd328f4 100644
--- a/drivers/gpu/drm/radeon/r600d.h
+++ b/drivers/gpu/drm/radeon/r600d.h
@@ -602,6 +602,9 @@
#define RLC_HB_WPTR 0x3f1c
#define RLC_HB_WPTR_LSB_ADDR 0x3f14
#define RLC_HB_WPTR_MSB_ADDR 0x3f18
+#define RLC_GPU_CLOCK_COUNT_LSB 0x3f38
+#define RLC_GPU_CLOCK_COUNT_MSB 0x3f3c
+#define RLC_CAPTURE_GPU_CLOCK_COUNT 0x3f40
#define RLC_MC_CNTL 0x3f44
#define RLC_UCODE_CNTL 0x3f48
#define RLC_UCODE_ADDR 0x3f2c