[PATCH 5.16 021/164] drm/amdgpu: do not enable asic reset for raven2

Greg Kroah-Hartman
2022-02-28T18:03:52Z

From: Chen Gong <curry.gong@amd.com>

commit 1e2be869c8a7247a7253ef4f461f85e2f5931b95 upstream.

The GPU reset function of raven2 is not maintained or tested, so it should be
very unstable.

Now the amdgpu_asic_reset function is added to amdgpu_pmops_suspend, which
causes the S3 test of raven2 to fail, so the asic_reset of raven2 is ignored
here.

Fixes: daf8de0874ab5b ("drm/amdgpu: always reset the asic in suspend (v2)")
Signed-off-by: Chen Gong <curry.gong@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/gpu/drm/amd/amdgpu/soc15.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/gpu/drm/amd/amdgpu/soc15.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
@@ -619,8 +619,8 @@ soc15_asic_reset_method(struct amdgpu_de
static int soc15_asic_reset(struct amdgpu_device *adev)
{
/* original raven doesn't have full asic reset */
- if ((adev->apu_flags & AMD_APU_IS_RAVEN) &&
- !(adev->apu_flags & AMD_APU_IS_RAVEN2))
+ if ((adev->apu_flags & AMD_APU_IS_RAVEN) ||
+ (adev->apu_flags & AMD_APU_IS_RAVEN2))
return 0;

switch (soc15_asic_reset_method(adev)) {