On Tue, May 26, 2015 at 4:53 AM, Michel Dänzer <michel@xxxxxxxxxxx> wrote:
> 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>
Applied to my -next tree.
Thanks!
> ---
> 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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