Timo, Can you fill out the an SRU justification to make it clear why this fix needs to be SRUed? In addition I see three patches identified in (https://bugs.freedesktop.org/show_bug.cgi?id=79053#c76) do all three need to be backported?
** Description changed: + SRU Justification: + [Impact] + Users of hardware with affected Intel graphics can experience graphics issues. + + [Test Case] + Run affected hardware and ensure it doesn't glitch. + + [Fix] + commit 3a22b6f6d55a5b1e0a1c0a3d597996268ed439ad Author: Mika Kuoppala <mika.kuopp...@linux.intel.com> 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 + 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 ** Description changed: - SRU Justification: - [Impact] - Users of hardware with affected Intel graphics can experience graphics issues. - - [Test Case] - Run affected hardware and ensure it doesn't glitch. - - [Fix] - commit 3a22b6f6d55a5b1e0a1c0a3d597996268ed439ad Author: Mika Kuoppala <mika.kuopp...@linux.intel.com> 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 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1401788 Title: backport BDW/CHV sna BLT fix To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1401788/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
