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| author | Michel Dänzer <michel.daenzer@amd.com> | 2016-04-01 12:51:34 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-05-05 03:19:03 +0300 |
| commit | c63dd758589b1f7e8398841d1f443f06ebfbcefc (patch) | |
| tree | 8dd086669a8d3dd74f8bab0b8e4def9e5e3b08ae /drivers/gpu/drm/radeon/radeon_display.c | |
| parent | a4333b4c9960a8f8d699910d4ae11c5eaefd8c25 (diff) | |
| download | linux-c63dd758589b1f7e8398841d1f443f06ebfbcefc.tar.xz | |
drm/radeon: Support DRM_MODE_PAGE_FLIP_ASYNC
When this flag is set, we program the hardware to execute the flip
during horizontal blank (i.e. for the next scanline) instead of during
vertical blank (i.e. for the next frame).
Currently this is only supported on ASICs which have a page flip
completion interrupt (>= R600), and only if the use_pflipirq parameter
has value 2 (the default).
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_display.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_display.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index fcc7483d3f7b..7f176ecfc583 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -490,7 +490,7 @@ static void radeon_flip_work_func(struct work_struct *__work) vblank->linedur_ns / 1000, stat, vpos, hpos); /* do the flip (mmio) */ - radeon_page_flip(rdev, radeon_crtc->crtc_id, work->base); + radeon_page_flip(rdev, radeon_crtc->crtc_id, work->base, work->async); radeon_crtc->flip_status = RADEON_FLIP_SUBMITTED; spin_unlock_irqrestore(&crtc->dev->event_lock, flags); @@ -525,6 +525,7 @@ static int radeon_crtc_page_flip(struct drm_crtc *crtc, work->rdev = rdev; work->crtc_id = radeon_crtc->crtc_id; work->event = event; + work->async = (page_flip_flags & DRM_MODE_PAGE_FLIP_ASYNC) != 0; /* schedule unpin of the old buffer */ old_radeon_fb = to_radeon_framebuffer(crtc->primary->fb); @@ -1630,6 +1631,9 @@ int radeon_modeset_init(struct radeon_device *rdev) rdev->ddev->mode_config.funcs = &radeon_mode_funcs; + if (radeon_use_pflipirq == 2 && rdev->family >= CHIP_R600) + rdev->ddev->mode_config.async_page_flip = true; + if (ASIC_IS_DCE5(rdev)) { rdev->ddev->mode_config.max_width = 16384; rdev->ddev->mode_config.max_height = 16384; |