drm/radeon/kv: implement get_current_sclk/mclk

Will be used for exposing current clocks via INFO ioctl.

Tested-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/radeon/kv_dpm.c b/drivers/gpu/drm/radeon/kv_dpm.c
index 0e236d0..2d71da4 100644 (file)
--- a/drivers/gpu/drm/radeon/kv_dpm.c
+++ b/drivers/gpu/drm/radeon/kv_dpm.c
@@ -2820,6 +2820,29 @@ 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 ce0cbd5..466a771 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_asic.c
+++ b/drivers/gpu/drm/radeon/radeon_asic.c
@@ -2249,6 +2249,8 @@ 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 bab2293..4259daf 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_asic.h
+++ b/drivers/gpu/drm/radeon/radeon_asic.h
@@ -908,6 +908,8 @@ 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,