diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/rs780_dpm.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/rs780_dpm.c | 22 |
1 files changed, 22 insertions, 0 deletions
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) { |