On 21/01/2016 16:56, Chris Wilson wrote:
On Thu, Jan 21, 2016 at 04:07:22PM +0000, Arun Siluvery wrote:
On 21/01/2016 15:17, Chris Wilson wrote:
On Thu, Jan 21, 2016 at 02:00:39PM +0000, Arun Siluvery wrote:
Resending all patches as told by Daniel because I didn't use correct
message-id while replying updated version of Patch1 before which means
patchwork won't pickup and we won't have CI results. Previous updates
regarding Patch1 are available at https://patchwork.freedesktop.org/patch/70527/
Some of the WA patches are now reviewed so I added r-b tags for them.
Reviewed: 1, 2, 3, 5, 6
Updated: 4 (to address review comment)
To be reviewed: 4, 7, 8
Arun Siluvery (8):
drm/i915/gen9: Add framework to whitelist specific GPU registers
drm/i915/gen9: Add GEN8_CS_CHICKEN1 to HW whitelist
drm/i915/gen9: Add HDC_CHICKEN1 to HW whitelist
drm/i915/bxt: Add GEN9_CS_DEBUG_MODE1 to HW whitelist
drm/i915/bxt: Add GEN8_L3SQCREG4 to HW whitelist
drm/i915/skl: Add GEN8_L3SQCREG4 to HW whitelist
drm/i915/skl: Enable Per context Preemption granularity control
drm/i915/gen9: Add WaOCLCoherentLineFlush
With bland changelogs, it is impossible to assess the severity of the
issues being addressed. How many of these do we need to apply to kernel
release to address potential user impact? Which do backporters need?
Are they critical stability fixes or power tuning or enabling for future
features?
-Chris
All of these changes are required for Preemption so they affect Gen9
only. The whitelist changes are really to support for preemption WA
that are going to be part of UMD. The WA data is sketchy and for
some of them hsd links are not available so I don't really know the
details.
Are you happy with adding "Required for future enabling of pre-emptive
command execution" to each? It just helps clarify the purpose of the
patch, and as I said helps answer the question of "do I need to backport
this to stable kernels".
yes it helps, will add it and resend.
regards
Arun
-Chris
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