drm/radeon: add support for read reg query from radeon info ioctl

[deliverable/linux.git] / drivers / gpu / drm / radeon / radeon_kms.c

diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 686411e4e4f6a3620289be34106ae5d38c9f6b93..7b2a7335cc5d557eafa6864d50cb6ebc9cdfb5ff 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -547,6 +547,35 @@ static int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file
                else
                        *value = 1;
                break;
+       case RADEON_INFO_CURRENT_GPU_TEMP:
+               /* get temperature in millidegrees C */
+               if (rdev->asic->pm.get_temperature)
+                       *value = radeon_get_temperature(rdev);
+               else
+                       *value = 0;
+               break;
+       case RADEON_INFO_CURRENT_GPU_SCLK:
+               /* get sclk in Mhz */
+               if (rdev->pm.dpm_enabled)
+                       *value = radeon_dpm_get_current_sclk(rdev) / 100;
+               else
+                       *value = rdev->pm.current_sclk / 100;
+               break;
+       case RADEON_INFO_CURRENT_GPU_MCLK:
+               /* get mclk in Mhz */
+               if (rdev->pm.dpm_enabled)
+                       *value = radeon_dpm_get_current_mclk(rdev) / 100;
+               else
+                       *value = rdev->pm.current_mclk / 100;
+               break;
+       case RADEON_INFO_READ_REG:
+               if (copy_from_user(value, value_ptr, sizeof(uint32_t))) {
+                       DRM_ERROR("copy_from_user %s:%u\n", __func__, __LINE__);
+                       return -EFAULT;
+               }
+               if (radeon_get_allowed_info_register(rdev, *value, value))
+                       return -EINVAL;
+               break;
        default:
                DRM_DEBUG_KMS("Invalid request %d\n", info->request);
                return -EINVAL;