On 07/17/2019 03:55 PM, Greg KH wrote:
On Wed, Jul 17, 2019 at 11:56:27PM +0800, Xiaolin Zhang wrote:
GPU hang observed during the guest OCL conformance test which is caused by THP GTT feature used durning the test.
It was observed the same GFN with different size (4K and 2M) requested from the guest in GVT. So during the guest page dma map stage, it is required to unmap first with orginal size and then remap again with requested size.
Fixes: b901b252b6cf ("drm/i915/gvt: Add 2M huge gtt support") Signed-off-by: Xiaolin Zhang xiaolin.zhang@intel.com
drivers/gpu/drm/i915/gvt/kvmgt.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)
<formletter>
This is not the correct way to submit patches for inclusion in the stable kernel tree. Please read: https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html for how to do this properly.
</formletter>
Greg, Thanks great information to point out this I am not fully aware. will resend to correct this.
-Xiaolin