Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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>
+20
+20
include/uapi/drm/amdgpu_drm.h
+20
include/uapi/drm/amdgpu_drm.h
···
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#define AMDGPU_INFO_NUM_EVICTIONS 0x18
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/* Query memory about VRAM and GTT domains */
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#define AMDGPU_INFO_MEMORY 0x19
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/* Query vce clock table */
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#define AMDGPU_INFO_VCE_CLOCK_TABLE 0x1A
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#define AMDGPU_INFO_MMR_SE_INDEX_SHIFT 0
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#define AMDGPU_INFO_MMR_SE_INDEX_MASK 0xff
···
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/** Bitmask of available rings. Bit 0 means ring 0, etc. */
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__u32 available_rings;
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__u32 _pad;
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};
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#define AMDGPU_VCE_CLOCK_TABLE_ENTRIES 6
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struct drm_amdgpu_info_vce_clock_table_entry {
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/** System clock */
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__u32 sclk;
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/** Memory clock */
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__u32 mclk;
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/** VCE clock */
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__u32 eclk;
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__u32 pad;
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};
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struct drm_amdgpu_info_vce_clock_table {
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struct drm_amdgpu_info_vce_clock_table_entry entries[AMDGPU_VCE_CLOCK_TABLE_ENTRIES];
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__u32 num_valid_entries;
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__u32 pad;
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};
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/*