Commit b0b9bb4d authored by Michel Dänzer's avatar Michel Dänzer Committed by Alex Deucher

drm/radeon: Fix max_vblank_count value for current display engines

The value was much too low, which could cause the userspace visible
vblank counter to move backwards when the hardware counter wrapped
around.
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarMichel Dänzer <michel.daenzer@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 161ab658
......@@ -145,7 +145,13 @@ void radeon_driver_irq_preinstall_kms(struct drm_device *dev)
*/
int radeon_driver_irq_postinstall_kms(struct drm_device *dev)
{
struct radeon_device *rdev = dev->dev_private;
if (ASIC_IS_AVIVO(rdev))
dev->max_vblank_count = 0x00ffffff;
else
dev->max_vblank_count = 0x001fffff;
return 0;
}
......
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