From: Michel Dänzer <michel.daenzer@xxxxxxx>
The value was much too low, which could cause the userspace visible
vblank counter to move backwards when the hardware counter wrapped
around.
Signed-off-by: Michel Dänzer <michel.daenzer@xxxxxxx>
---
drivers/gpu/drm/radeon/radeon_irq_kms.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c
index 7162c93..d5c392b 100644
--- a/drivers/gpu/drm/radeon/radeon_irq_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c
@@ -143,7 +143,13 @@ void radeon_driver_irq_preinstall_kms(struct drm_device *dev)
*/
int radeon_driver_irq_postinstall_kms(struct drm_device *dev)
{
- dev->max_vblank_count = 0x001fffff;
+ 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;
}
--
2.1.4
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