drm/amdgpu: fill in vce clock info ioctl query (v2)
authorAlex Deucher <alexander.deucher@amd.com>
Fri, 7 Oct 2016 16:22:02 +0000 (12:22 -0400)
committerAlex Deucher <alexander.deucher@amd.com>
Tue, 25 Oct 2016 18:38:43 +0000 (14:38 -0400)
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>
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c

index 1ecfe9a046ab4d9d6af59add1b9a422460766adf..3570124ed1866041530118b4286b58481f4040c2 100644 (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;