drm/amdgpu: skip gfx switch_power_profile during GPU reset

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During resume from GPU reset, the gfx idle work may invoke switch_power_profile
before the reset completes. This causes the following assert error because the
register access occurs without first releasing the GPU reset semaphore:

[ 1576.768935] CR2: 0000559ea133ead0 CR3: 00000002e6c42000 CR4: 0000000000350ef0
[ 1576.768940] Call Trace:
[ 1576.768944]  <TASK>
[ 1576.768953]  amdgpu_device_rreg+0x21/0x50 [amdgpu]
[ 1576.769158]  smu_msg_v1_send_msg+0x1a4/0x6e0 [amdgpu]
[ 1576.769437]  smu_cmn_send_smc_msg_with_params_ext+0xba/0x120 [amdgpu]
[ 1576.769721]  smu_cmn_send_smc_msg_with_param+0x33/0x40 [amdgpu]
[ 1576.769993]  smu_v13_0_0_set_power_profile_mode+0x192/0x2b0 [amdgpu]
[ 1576.770267]  smu_bump_power_profile_mode+0x5d/0x80 [amdgpu]
[ 1576.770538]  smu_switch_power_profile+0xa4/0xf0 [amdgpu]
[ 1576.770839]  amdgpu_dpm_switch_power_profile+0x6f/0x90 [amdgpu]
[ 1576.771210]  amdgpu_gfx_profile_idle_work_handler+0xe9/0x130 [amdgpu]
[ 1576.771460]  process_one_work+0x23e/0x6f0
[ 1576.771491]  worker_thread+0x1c4/0x380
[ 1576.771506]  kthread+0x10c/0x150
[ 1576.771512]  ? __pfx_worker_thread+0x10/0x10
[ 1576.771518]  ? __pfx_kthread+0x10/0x10
[ 1576.771530]  ret_from_fork+0x314/0x390
[ 1576.771537]  ? __pfx_kthread+0x10/0x10
[ 1576.771546]  ret_from_fork_asm+0x1a/0x30

Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Prike Liang 2026-08-31 10:51:04 +08:00 • committed by Alex Deucher

parent 815b6f31f4

commit d93b1ff538

1 changed files with 4 additions and 2 deletions

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6

drivers/gpu/drm/amd/pm/amdgpu_dpm.c

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