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authorMarek Olšák <maraeo@gmail.com>2012-08-09 16:34:17 +0200
committerAlex Deucher <alexander.deucher@amd.com>2012-08-13 10:50:56 -0400
commit6759a0a7a0496dbbd4fb062c6a76d61c55d0fbd9 (patch)
treee16a78229435a2277d11f55ad8dd07780ce7499c /include/drm
parentb51ad12a36234c1f6707c9c54a414cfca23f3cdb (diff)
downloadop-kernel-dev-6759a0a7a0496dbbd4fb062c6a76d61c55d0fbd9.zip
op-kernel-dev-6759a0a7a0496dbbd4fb062c6a76d61c55d0fbd9.tar.gz
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>
Diffstat (limited to 'include/drm')
-rw-r--r--include/drm/radeon_drm.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/drm/radeon_drm.h b/include/drm/radeon_drm.h
index 5805686..dc3a8cd 100644
--- a/include/drm/radeon_drm.h
+++ b/include/drm/radeon_drm.h
@@ -964,6 +964,8 @@ struct drm_radeon_cs {
#define RADEON_INFO_IB_VM_MAX_SIZE 0x0f
/* max pipes - needed for compute shaders */
#define RADEON_INFO_MAX_PIPES 0x10
+/* timestamp for GL_ARB_timer_query (OpenGL), returns the current GPU clock */
+#define RADEON_INFO_TIMESTAMP 0x11
struct drm_radeon_info {
uint32_t request;
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