diff options
| author | Alex Deucher <alexdeucher@gmail.com> | 2010-03-31 00:33:27 -0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-03-31 14:54:47 +1000 |
| commit | f46c01208da1881591e3f55ca77d37f54469f8e4 (patch) | |
| tree | 39b9169c70da504b80440b85b5ef2ffa4394d25f /drivers/gpu/drm/radeon/radeon_display.c | |
| parent | 3b01a1191fe76bd11e5743eceed7c25d8157239e (diff) | |
drm/radeon/kms: display watermark updates (v2)
- Add module option to force the display priority
0 = auto, 1 = normal, 2 = high
- Default to high on r3xx/r4xx/rv515 chips
Fixes flickering problems during heavy acceleration
due to underflow to the display controllers
- Fill in minimal support for RS600
v2 - update display priority when bandwidth is updated
so the user can change the parameter at runtime and it
will take affect on the next modeset.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_display.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_display.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index eca714c381d..b8d67282824 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -971,6 +971,23 @@ static int radeon_modeset_create_props(struct radeon_device *rdev) return 0; } +void radeon_update_display_priority(struct radeon_device *rdev) +{ + /* adjustment options for the display watermarks */ + if ((radeon_disp_priority == 0) || (radeon_disp_priority > 2)) { + /* set display priority to high for r3xx, rv515 chips + * this avoids flickering due to underflow to the + * display controllers during heavy acceleration. + */ + if (ASIC_IS_R300(rdev) || (rdev->family == CHIP_RV515)) + rdev->disp_priority = 2; + else + rdev->disp_priority = 0; + } else + rdev->disp_priority = radeon_disp_priority; + +} + int radeon_modeset_init(struct radeon_device *rdev) { int i; |