Re: [PATCH] drm/radeon: avoid kernel segfault in vce when gpu fails to resume

2017-02-08 Thread Alex Deucher
On Tue, Feb 7, 2017 at 5:51 AM, Christian König wrote: > Am 06.02.2017 um 21:13 schrieb j.gli...@gmail.com: >> >> From: Jérôme Glisse >> >> When GPU fails to resume we can not trust that value we write to GPU >> memory will post and we might get garbage (more like 0x on >> x86) when readi

Re: [PATCH] drm/radeon: avoid kernel segfault in vce when gpu fails to resume

2017-02-07 Thread Christian König
Am 06.02.2017 um 21:13 schrieb j.gli...@gmail.com: From: Jérôme Glisse When GPU fails to resume we can not trust that value we write to GPU memory will post and we might get garbage (more like 0x on x86) when reading them back. This trigger out of range memory access in the kernel insid

[PATCH] drm/radeon: avoid kernel segfault in vce when gpu fails to resume

2017-02-06 Thread j . glisse
From: Jérôme Glisse When GPU fails to resume we can not trust that value we write to GPU memory will post and we might get garbage (more like 0x on x86) when reading them back. This trigger out of range memory access in the kernel inside the vce resume code path. This patch use canonical