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drm/amdgpu: fill in vce clock info ioctl query (v2)

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Returns the vce clock table for the user mode driver.
The user mode driver can fill this data into vce clock
data packet for optimal VCE DPM.

v2: update to the new API

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>
This commit is contained in:
Alex Deucher 2016-10-07 12:22:02 -04:00
parent 597be302f1
commit 07fecde5d3
1 changed files with 18 additions and 0 deletions
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18
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
View file

@ -524,6 +524,24 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file
return copy_to_user(out, &dev_info,
min((size_t)size, sizeof(dev_info))) ? -EFAULT : 0;
}
case AMDGPU_INFO_VCE_CLOCK_TABLE: {
unsigned i;
struct drm_amdgpu_info_vce_clock_table vce_clk_table = {};
struct amd_vce_state *vce_state;
for (i = 0; i < AMDGPU_VCE_CLOCK_TABLE_ENTRIES; i++) {
vce_state = amdgpu_dpm_get_vce_clock_state(adev, i);
if (vce_state) {
vce_clk_table.entries[i].sclk = vce_state->sclk;
vce_clk_table.entries[i].mclk = vce_state->mclk;
vce_clk_table.entries[i].eclk = vce_state->evclk;
vce_clk_table.num_valid_entries++;
}
}
return copy_to_user(out, &vce_clk_table,
min((size_t)size, sizeof(vce_clk_table))) ? -EFAULT : 0;
}
default:
DRM_DEBUG_KMS("Invalid request %d\n", info->query);
return -EINVAL;