https://github.com/torvalds/linux
Revision a7b7d9e8aee4f71b4c7151702fd74237b8cef989 authored by Mario Limonciello on 18 May 2023, 16:52:51 UTC, committed by Alex Deucher on 16 August 2023, 19:46:39 UTC
DCN 3.1.4 is reported to hang on s2idle entry if graphics activity
is happening during entry. This is because GFXOFF was scheduled as
delayed but RLC gets disabled in s2idle entry sequence which will
hang GFX IP if not already in GFXOFF.
To help this problem, flush any delayed work for GFXOFF early in
s2idle entry sequence to ensure that it's off when RLC is changed.
commit 4b31b92b143f ("drm/amdgpu: complete gfxoff allow signal during
suspend without delay") modified power gating flow so that if called
in s0ix that it ensured that GFXOFF wasn't put in work queue but
instead processed immediately.
This is dead code due to commit 10cb67eb8a1b ("drm/amdgpu: skip
CG/PG for gfx during S0ix") because GFXOFF will now not be explicitly
called as part of the suspend entry code. Remove that dead code.
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Tim Huang <tim.huang@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
1 parent f1740b1
Tip revision: a7b7d9e8aee4f71b4c7151702fd74237b8cef989 authored by Mario Limonciello on 18 May 2023, 16:52:51 UTC
drm/amd: flush any delayed gfxoff on suspend entry
drm/amd: flush any delayed gfxoff on suspend entry
Tip revision: a7b7d9e
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| .cocciconfig | -rw-r--r-- | 59 bytes |
| .get_maintainer.ignore | -rw-r--r-- | 151 bytes |
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| .rustfmt.toml | -rw-r--r-- | 369 bytes |
| COPYING | -rw-r--r-- | 496 bytes |
| CREDITS | -rw-r--r-- | 100.3 KB |
| Kbuild | -rw-r--r-- | 2.5 KB |
| Kconfig | -rw-r--r-- | 555 bytes |
| MAINTAINERS | -rw-r--r-- | 699.4 KB |
| Makefile | -rw-r--r-- | 70.0 KB |
| README | -rw-r--r-- | 727 bytes |
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