]> git.baikalelectronics.ru Git - kernel.git/commit
drm/i915/gt: Reset twice
authorChris Wilson <chris@chris-wilson.co.uk>
Mon, 12 Dec 2022 16:13:38 +0000 (17:13 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 24 Jan 2023 06:17:59 +0000 (07:17 +0100)
commita858e1935eca9c6e94478e1b2d113be078818492
tree382ebe6a5cdb40004f47b2e87fb28503a979e286
parenta633146460c05819369bae0fce587bd48d8854a0
drm/i915/gt: Reset twice

[ Upstream commit d3de5616d36462a646f5b360ba82d3b09ff668eb ]

After applying an engine reset, on some platforms like Jasperlake, we
occasionally detect that the engine state is not cleared until shortly
after the resume. As we try to resume the engine with volatile internal
state, the first request fails with a spurious CS event (it looks like
it reports a lite-restore to the hung context, instead of the expected
idle->active context switch).

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@vger.kernel.org
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221212161338.1007659-1-andi.shyti@linux.intel.com
(cherry picked from commit 3db9d590557da3aa2c952f2fecd3e9b703dad790)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/gpu/drm/i915/gt/intel_reset.c