diff options
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_asic.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_asic.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/rs780_dpm.c | 22 |
3 files changed, 26 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c index c0ecd128b14b..a73da113e0c1 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.c +++ b/drivers/gpu/drm/radeon/radeon_asic.c @@ -1170,6 +1170,8 @@ static struct radeon_asic rs780_asic = { .print_power_state = &rs780_dpm_print_power_state, .debugfs_print_current_performance_level = &rs780_dpm_debugfs_print_current_performance_level, .force_performance_level = &rs780_dpm_force_performance_level, + .get_current_sclk = &rs780_dpm_get_current_sclk, + .get_current_mclk = &rs780_dpm_get_current_mclk, }, .pflip = { .page_flip = &rs600_page_flip, diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h index 72bdd3bf0d8e..47d9901a7e45 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.h +++ b/drivers/gpu/drm/radeon/radeon_asic.h @@ -449,6 +449,8 @@ void rs780_dpm_debugfs_print_current_performance_level(struct radeon_device *rde struct seq_file *m); int rs780_dpm_force_performance_level(struct radeon_device *rdev, enum radeon_dpm_forced_level level); +u32 rs780_dpm_get_current_sclk(struct radeon_device *rdev); +u32 rs780_dpm_get_current_mclk(struct radeon_device *rdev); /* * rv770,rv730,rv710,rv740 diff --git a/drivers/gpu/drm/radeon/rs780_dpm.c b/drivers/gpu/drm/radeon/rs780_dpm.c index 9031f4b69824..cb0afe78abed 100644 --- a/drivers/gpu/drm/radeon/rs780_dpm.c +++ b/drivers/gpu/drm/radeon/rs780_dpm.c @@ -1001,6 +1001,28 @@ void rs780_dpm_debugfs_print_current_performance_level(struct radeon_device *rde ps->sclk_high, ps->max_voltage); } +/* get the current sclk in 10 khz units */ +u32 rs780_dpm_get_current_sclk(struct radeon_device *rdev) +{ + u32 current_fb_div = RREG32(FVTHROT_STATUS_REG0) & CURRENT_FEEDBACK_DIV_MASK; + u32 func_cntl = RREG32(CG_SPLL_FUNC_CNTL); + u32 ref_div = ((func_cntl & SPLL_REF_DIV_MASK) >> SPLL_REF_DIV_SHIFT) + 1; + u32 post_div = ((func_cntl & SPLL_SW_HILEN_MASK) >> SPLL_SW_HILEN_SHIFT) + 1 + + ((func_cntl & SPLL_SW_LOLEN_MASK) >> SPLL_SW_LOLEN_SHIFT) + 1; + u32 sclk = (rdev->clock.spll.reference_freq * current_fb_div) / + (post_div * ref_div); + + return sclk; +} + +/* get the current mclk in 10 khz units */ +u32 rs780_dpm_get_current_mclk(struct radeon_device *rdev) +{ + struct igp_power_info *pi = rs780_get_pi(rdev); + + return pi->bootup_uma_clk; +} + int rs780_dpm_force_performance_level(struct radeon_device *rdev, enum radeon_dpm_forced_level level) { |