> Under certain circumstances, an IOTLB flush never completes and the hardware
> just locks up. The fix is meant to idle the GPU both before and after
> any unmap occurs, which should prevent the possibity to hang.
One comment below, noticed by building it for RHEL6.
>
> +/* Certain Gen5 chipset
Under certain circumstances, an IOTLB flush never completes and the hardware
just locks up. The fix is meant to idle the GPU both before and after
any unmap occurs, which should prevent the possibity to hang.
Signed-off-by: Ben Widawsky
---
drivers/char/agp/intel-gtt.c| 33 +++
