diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/radeon/btc_dpm.c | 16 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_asic.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_asic.h | 1 |
3 files changed, 17 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/btc_dpm.c b/drivers/gpu/drm/radeon/btc_dpm.c index 91567448c55d..0bfd55e08820 100644 --- a/drivers/gpu/drm/radeon/btc_dpm.c +++ b/drivers/gpu/drm/radeon/btc_dpm.c @@ -2059,6 +2059,19 @@ static void btc_init_stutter_mode(struct radeon_device *rdev) } } +bool btc_dpm_vblank_too_short(struct radeon_device *rdev) +{ + struct rv7xx_power_info *pi = rv770_get_pi(rdev); + u32 vblank_time = r600_dpm_get_vblank_time(rdev); + u32 switch_limit = pi->mem_gddr5 ? 450 : 100; + + if (vblank_time < switch_limit) + return true; + else + return false; + +} + static void btc_apply_state_adjust_rules(struct radeon_device *rdev, struct radeon_ps *rps) { @@ -2068,7 +2081,8 @@ static void btc_apply_state_adjust_rules(struct radeon_device *rdev, u32 mclk, sclk; u16 vddc, vddci; - if (rdev->pm.dpm.new_active_crtc_count > 1) + if ((rdev->pm.dpm.new_active_crtc_count > 1) || + btc_dpm_vblank_too_short(rdev)) disable_mclk_switching = true; else disable_mclk_switching = false; diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c index e73026393a46..c42b3674b426 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.c +++ b/drivers/gpu/drm/radeon/radeon_asic.c @@ -1768,6 +1768,7 @@ static struct radeon_asic btc_asic = { .print_power_state = &rv770_dpm_print_power_state, .debugfs_print_current_performance_level = &rv770_dpm_debugfs_print_current_performance_level, .force_performance_level = &rv770_dpm_force_performance_level, + .vblank_too_short = &btc_dpm_vblank_too_short, }, .pflip = { .pre_page_flip = &evergreen_pre_page_flip, diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h index 0ef8b4967b9c..bca9a8bc062b 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.h +++ b/drivers/gpu/drm/radeon/radeon_asic.h @@ -556,6 +556,7 @@ void btc_dpm_post_set_power_state(struct radeon_device *rdev); void btc_dpm_fini(struct radeon_device *rdev); u32 btc_dpm_get_sclk(struct radeon_device *rdev, bool low); u32 btc_dpm_get_mclk(struct radeon_device *rdev, bool low); +bool btc_dpm_vblank_too_short(struct radeon_device *rdev); int sumo_dpm_init(struct radeon_device *rdev); int sumo_dpm_enable(struct radeon_device *rdev); void sumo_dpm_disable(struct radeon_device *rdev); |