mirror of
https://github.com/torvalds/linux.git
synced 2024-12-24 20:01:55 +00:00
drm/i915: Remove too early plane enable on pre-PCH hardware
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 <melchior.franz@gmail.com> References: https://bugs.freedesktop.org/show_bug.cgi?id=39947 References: https://bugs.freedesktop.org/show_bug.cgi?id=41091 References: https://bugs.freedesktop.org/show_bug.cgi?id=49041 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
parent
7338aefa5c
commit
c7bd4c2565
@ -3932,7 +3932,6 @@ static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
|
||||
|
||||
I915_WRITE(DSPCNTR(plane), dspcntr);
|
||||
POSTING_READ(DSPCNTR(plane));
|
||||
intel_enable_plane(dev_priv, plane, pipe);
|
||||
|
||||
ret = intel_pipe_set_base(crtc, x, y, old_fb);
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user