Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

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

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

drivers/gpu/drm/radeon/radeon_irq_kms.c

+7 −1
Original line number Diff line number Diff line
@@ -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;

}