diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/rs780_dpm.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/rs780_dpm.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/rs780_dpm.c b/drivers/gpu/drm/radeon/rs780_dpm.c index bef832a62fee..d1a1ce73bd45 100644 --- a/drivers/gpu/drm/radeon/rs780_dpm.c +++ b/drivers/gpu/drm/radeon/rs780_dpm.c @@ -28,6 +28,7 @@ #include "r600_dpm.h" #include "rs780_dpm.h" #include "atom.h" +#include <linux/seq_file.h> static struct igp_ps *rs780_get_ps(struct radeon_ps *rps) { @@ -961,3 +962,27 @@ u32 rs780_dpm_get_mclk(struct radeon_device *rdev, bool low) return pi->bootup_uma_clk; } + +void rs780_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev, + struct seq_file *m) +{ + struct radeon_ps *rps = rdev->pm.dpm.current_ps; + struct igp_ps *ps = rs780_get_ps(rps); + 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); + + seq_printf(m, "uvd vclk: %d dclk: %d\n", rps->vclk, rps->dclk); + + /* guess based on the current sclk */ + if (sclk < (ps->sclk_low + 500)) + seq_printf(m, "power level 0 sclk: %u vddc_index: %d\n", + ps->sclk_low, ps->min_voltage); + else + seq_printf(m, "power level 1 sclk: %u vddc_index: %d\n", + ps->sclk_high, ps->max_voltage); +} |