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| author | Alex Deucher <alexander.deucher@amd.com> | 2013-07-08 12:15:11 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2013-07-08 17:41:11 -0400 |
| commit | f4dec31861e938267d41a962f145edc7d81c8e92 (patch) | |
| tree | 897575f0e233182232512d0eecf9d7d36d88b55a | |
| parent | 76ad73e549ff39cbb235dae3a14902bb6ca12d53 (diff) | |
| download | blackbird-obmc-linux-f4dec31861e938267d41a962f145edc7d81c8e92.tar.gz blackbird-obmc-linux-f4dec31861e938267d41a962f145edc7d81c8e92.zip | |
drm/radeon/dpm: implement vblank_too_short callback for si
Check if we can switch the mclk during the vblank time otherwise
we may get artifacts on the screen when the mclk changes.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/radeon/ni_dpm.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_asic.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/si_dpm.c | 3 |
3 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/ni_dpm.h b/drivers/gpu/drm/radeon/ni_dpm.h index ac1c7abf2c67..6bbee9180909 100644 --- a/drivers/gpu/drm/radeon/ni_dpm.h +++ b/drivers/gpu/drm/radeon/ni_dpm.h @@ -245,4 +245,6 @@ void ni_set_uvd_clock_after_set_eng_clock(struct radeon_device *rdev, struct radeon_ps *new_ps, struct radeon_ps *old_ps); +bool ni_dpm_vblank_too_short(struct radeon_device *rdev); + #endif diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c index c62428be9bed..097077499cc6 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.c +++ b/drivers/gpu/drm/radeon/radeon_asic.c @@ -2294,6 +2294,7 @@ static struct radeon_asic si_asic = { .print_power_state = &ni_dpm_print_power_state, .debugfs_print_current_performance_level = &si_dpm_debugfs_print_current_performance_level, .force_performance_level = &si_dpm_force_performance_level, + .vblank_too_short = &ni_dpm_vblank_too_short, }, .pflip = { .pre_page_flip = &evergreen_pre_page_flip, diff --git a/drivers/gpu/drm/radeon/si_dpm.c b/drivers/gpu/drm/radeon/si_dpm.c index 700a167be369..73aaa2e4c312 100644 --- a/drivers/gpu/drm/radeon/si_dpm.c +++ b/drivers/gpu/drm/radeon/si_dpm.c @@ -2906,7 +2906,8 @@ static void si_apply_state_adjust_rules(struct radeon_device *rdev, u16 vddc, vddci; int i; - if (rdev->pm.dpm.new_active_crtc_count > 1) + if ((rdev->pm.dpm.new_active_crtc_count > 1) || + ni_dpm_vblank_too_short(rdev)) disable_mclk_switching = true; else disable_mclk_switching = false; |
