Re: [Intel-gfx] [PATCH] drm/i915: Remove too early plane enable on pre-PCH hardware

2012-04-25 Thread Daniel Vetter
On Tue, Apr 24, 2012 at 12:10:09PM -0700, Jesse Barnes wrote: > On Tue, 24 Apr 2012 16:36:50 +0100 > Chris Wilson wrote: > > > Enabling the plane before we have assigned valid address means that it > > will access random PTE (often with conflicting memory types) and cause > > GPU lockups. However

Re: [Intel-gfx] [PATCH] drm/i915: Remove too early plane enable on pre-PCH hardware

2012-04-24 Thread Jesse Barnes
On Tue, 24 Apr 2012 16:36:50 +0100 Chris Wilson wrote: > Enabling the plane before we have assigned valid address means that it > will access random PTE (often with conflicting memory types) and cause > GPU lockups. However, enabling the plane too early appears to workaround > a number of bugs in

[Intel-gfx] [PATCH] drm/i915: Remove too early plane enable on pre-PCH hardware

2012-04-24 Thread Chris Wilson
Enabling the plane before we have assigned valid address means that it will access random PTE (often with conflicting memory types) and cause GPU lockups. However, enabling the plane too early appears to workaround a number of bugs in our modesetting code. Cc: Franz Melchior References: https://b