diff options
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_asic.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_asic.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/rs780_dpm.c | 25 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/rs780d.h | 3 |
4 files changed, 31 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c index fea997e247ba..78bec1a58ed1 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.c +++ b/drivers/gpu/drm/radeon/radeon_asic.c @@ -1270,6 +1270,7 @@ static struct radeon_asic rs780_asic = { .get_sclk = &rs780_dpm_get_sclk, .get_mclk = &rs780_dpm_get_mclk, .print_power_state = &rs780_dpm_print_power_state, + .debugfs_print_current_performance_level = &rs780_dpm_debugfs_print_current_performance_level, }, .pflip = { .pre_page_flip = &rs600_pre_page_flip, diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h index b04b5789f4a8..ca1895709908 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.h +++ b/drivers/gpu/drm/radeon/radeon_asic.h @@ -433,6 +433,8 @@ u32 rs780_dpm_get_sclk(struct radeon_device *rdev, bool low); u32 rs780_dpm_get_mclk(struct radeon_device *rdev, bool low); void rs780_dpm_print_power_state(struct radeon_device *rdev, struct radeon_ps *ps); +void rs780_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev, + struct seq_file *m); /* uvd */ int r600_uvd_init(struct radeon_device *rdev); 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); +} diff --git a/drivers/gpu/drm/radeon/rs780d.h b/drivers/gpu/drm/radeon/rs780d.h index b1142ed1c628..cfbe9a43d97b 100644 --- a/drivers/gpu/drm/radeon/rs780d.h +++ b/drivers/gpu/drm/radeon/rs780d.h @@ -28,6 +28,7 @@ # define SPLL_SLEEP (1 << 1) # define SPLL_REF_DIV(x) ((x) << 2) # define SPLL_REF_DIV_MASK (7 << 2) +# define SPLL_REF_DIV_SHIFT 2 # define SPLL_FB_DIV(x) ((x) << 5) # define SPLL_FB_DIV_MASK (0xff << 2) # define SPLL_FB_DIV_SHIFT 2 @@ -36,8 +37,10 @@ # define SPLL_PULSENUM_MASK (3 << 14) # define SPLL_SW_HILEN(x) ((x) << 16) # define SPLL_SW_HILEN_MASK (0xf << 16) +# define SPLL_SW_HILEN_SHIFT 16 # define SPLL_SW_LOLEN(x) ((x) << 20) # define SPLL_SW_LOLEN_MASK (0xf << 20) +# define SPLL_SW_LOLEN_SHIFT 20 # define SPLL_DIVEN (1 << 24) # define SPLL_BYPASS_EN (1 << 25) # define SPLL_CHG_STATUS (1 << 29) |