[PATCH 13/22] drm/radeon/kv: implement get_current_sclk/mclk

[Alex Deucher]

Will be used for exposing current clocks via INFO ioctl.

Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/radeon/kv_dpm.c      | 23 +++++++++++++++++++++++
 drivers/gpu/drm/radeon/radeon_asic.c |  2 ++
 drivers/gpu/drm/radeon/radeon_asic.h |  2 ++
 3 files changed, 27 insertions(+)

diff --git a/drivers/gpu/drm/radeon/kv_dpm.c b/drivers/gpu/drm/radeon/kv_dpm.c
index 8b58e11..bffacd9 100644
--- a/drivers/gpu/drm/radeon/kv_dpm.c
+++ b/drivers/gpu/drm/radeon/kv_dpm.c
@@ -2778,6 +2778,29 @@ void kv_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,
 	}
 }
 
+u32 kv_dpm_get_current_sclk(struct radeon_device *rdev)
+{
+	struct kv_power_info *pi = kv_get_pi(rdev);
+	u32 current_index =
+		(RREG32_SMC(TARGET_AND_CURRENT_PROFILE_INDEX) & CURR_SCLK_INDEX_MASK) >>
+		CURR_SCLK_INDEX_SHIFT;
+	u32 sclk;
+
+	if (current_index >= SMU__NUM_SCLK_DPM_STATE) {
+		return 0;
+	} else {
+		sclk = be32_to_cpu(pi->graphics_level[current_index].SclkFrequency);
+		return sclk;
+	}
+}
+
+u32 kv_dpm_get_current_mclk(struct radeon_device *rdev)
+{
+	struct kv_power_info *pi = kv_get_pi(rdev);
+
+	return pi->sys_info.bootup_uma_clk;
+}
+
 void kv_dpm_print_power_state(struct radeon_device *rdev,
 			      struct radeon_ps *rps)
 {
diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c
index 8722141..0b039fb 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.c
+++ b/drivers/gpu/drm/radeon/radeon_asic.c
@@ -2233,6 +2233,8 @@ static struct radeon_asic kv_asic = {
 		.force_performance_level = &kv_dpm_force_performance_level,
 		.powergate_uvd = &kv_dpm_powergate_uvd,
 		.enable_bapm = &kv_dpm_enable_bapm,
+		.get_current_sclk = &kv_dpm_get_current_sclk,
+		.get_current_mclk = &kv_dpm_get_current_mclk,
 	},
 	.pflip = {
 		.page_flip = &evergreen_page_flip,
diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h
index b7b4854..2b60d0f 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.h
+++ b/drivers/gpu/drm/radeon/radeon_asic.h
@@ -894,6 +894,8 @@ int kv_dpm_force_performance_level(struct radeon_device *rdev,
 				   enum radeon_dpm_forced_level level);
 void kv_dpm_powergate_uvd(struct radeon_device *rdev, bool gate);
 void kv_dpm_enable_bapm(struct radeon_device *rdev, bool enable);
+u32 kv_dpm_get_current_sclk(struct radeon_device *rdev);
+u32 kv_dpm_get_current_mclk(struct radeon_device *rdev);
 
 /* uvd v1.0 */
 uint32_t uvd_v1_0_get_rptr(struct radeon_device *rdev,
-- 
1.8.3.1