Public bug reported:
commit 3a22b6f6d55a5b1e0a1c0a3d597996268ed439ad
Author: Mika Kuoppala <[email protected]>
Date: Wed Nov 19 15:10:05 2014 +0200
sna: gen8 BLT broken when address has bit 4 set
With bit 4 set in address, the gen8 blitter fails and blits errorneously
into the cacheline preceeding the destination and similarly when reading
from
the source, corrupting memory.
v2: Update the destination base offset pattern as revealed
by igt/tests/gem_userptr_blits/destination-bo-align
v3: Check base address as well
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=79053
** Affects: xserver-xorg-video-intel
Importance: Unknown
Status: Unknown
** Affects: xserver-xorg-video-intel (Ubuntu)
Importance: Undecided
Assignee: Timo Aaltonen (tjaalton)
Status: In Progress
** Affects: xserver-xorg-video-intel (Ubuntu Trusty)
Importance: Undecided
Status: New
** Affects: xserver-xorg-video-intel (Ubuntu Utopic)
Importance: Undecided
Status: New
** Affects: xserver-xorg-video-intel (Ubuntu Vivid)
Importance: Undecided
Assignee: Timo Aaltonen (tjaalton)
Status: In Progress
** Also affects: xserver-xorg-video-intel (Ubuntu Vivid)
Importance: Undecided
Status: New
** Also affects: xserver-xorg-video-intel (Ubuntu Trusty)
Importance: Undecided
Status: New
** Also affects: xserver-xorg-video-intel (Ubuntu Utopic)
Importance: Undecided
Status: New
** Changed in: xserver-xorg-video-intel (Ubuntu Vivid)
Status: New => In Progress
** Changed in: xserver-xorg-video-intel (Ubuntu Vivid)
Assignee: (unassigned) => Timo Aaltonen (tjaalton)
** Bug watch added: freedesktop.org Bugzilla #79053
https://bugs.freedesktop.org/show_bug.cgi?id=79053
** Also affects: xserver-xorg-video-intel via
https://bugs.freedesktop.org/show_bug.cgi?id=79053
Importance: Unknown
Status: Unknown
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https://bugs.launchpad.net/bugs/1401788
Title:
backport BDW/CHV sna BLT fix
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