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authorAlex Deucher <alexander.deucher@amd.com>2016-10-07 12:12:46 -0400
committerAlex Deucher <alexander.deucher@amd.com>2016-10-25 14:38:40 -0400
commitbbe879747629fef4b2b73034059e73b2a433e0d1 (patch)
treef8c1d90baeebeac5661398934b7c42e7ce5e58d3 /include
parent66ba1afd854211435cc91159a1ededb1d0f04464 (diff)
downloadlinux-bbe879747629fef4b2b73034059e73b2a433e0d1.tar.gz
drm/amdgpu: add info ioctl query for vce clock info (v3)
This is needed to set up the vce clock table in userspace
for proper VCE DPM.

v2: fix copy paste typo in comment
v3: track number of valid states

Reviewed-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'include')
-rw-r--r--include/uapi/drm/amdgpu_drm.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h
index b6a04d48f457..a03beb109d78 100644
--- a/include/uapi/drm/amdgpu_drm.h
+++ b/include/uapi/drm/amdgpu_drm.h
@@ -491,6 +491,8 @@ struct drm_amdgpu_cs_chunk_data {
 #define AMDGPU_INFO_NUM_EVICTIONS		0x18
 /* Query memory about VRAM and GTT domains */
 #define AMDGPU_INFO_MEMORY			0x19
+/* Query vce clock table */
+#define AMDGPU_INFO_VCE_CLOCK_TABLE		0x1A
 
 #define AMDGPU_INFO_MMR_SE_INDEX_SHIFT	0
 #define AMDGPU_INFO_MMR_SE_INDEX_MASK	0xff
@@ -677,6 +679,24 @@ struct drm_amdgpu_info_hw_ip {
 	__u32  _pad;
 };
 
+#define AMDGPU_VCE_CLOCK_TABLE_ENTRIES		6
+
+struct drm_amdgpu_info_vce_clock_table_entry {
+	/** System clock */
+	__u32 sclk;
+	/** Memory clock */
+	__u32 mclk;
+	/** VCE clock */
+	__u32 eclk;
+	__u32 pad;
+};
+
+struct drm_amdgpu_info_vce_clock_table {
+	struct drm_amdgpu_info_vce_clock_table_entry entries[AMDGPU_VCE_CLOCK_TABLE_ENTRIES];
+	__u32 num_valid_entries;
+	__u32 pad;
+};
+
 /*
  * Supported GPU families
  */