[PATCH 14/22] drm/radeon: add INFO query for current sclk/mclk

[Alex Deucher]

Allow the UMDs to query the current sclk/mclk
for profiling, etc.

Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/radeon/radeon_kms.c | 14 ++++++++++++++
 include/uapi/drm/radeon_drm.h       |  2 ++
 2 files changed, 16 insertions(+)

diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index e0a85dc..f15de68 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -547,6 +547,20 @@ static int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file
 		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;
 	default:
 		DRM_DEBUG_KMS("Invalid request %d\n", info->request);
 		return -EINVAL;
diff --git a/include/uapi/drm/radeon_drm.h b/include/uapi/drm/radeon_drm.h
index 66b1131..de7ee21 100644
--- a/include/uapi/drm/radeon_drm.h
+++ b/include/uapi/drm/radeon_drm.h
@@ -1035,6 +1035,8 @@ struct drm_radeon_cs {
 #define RADEON_INFO_GTT_USAGE		0x1f
 #define RADEON_INFO_ACTIVE_CU_COUNT	0x20
 #define RADEON_INFO_CURRENT_GPU_TEMP	0x21
+#define RADEON_INFO_CURRENT_GPU_SCLK	0x22
+#define RADEON_INFO_CURRENT_GPU_MCLK	0x23
 
 struct drm_radeon_info {
 	uint32_t		request;
-- 
1.8.3.1