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drm/amdgpu/gfx8: Stop CP and RLC during reset

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The only case when they may not go idle is when we are dealing
with a GPU hang, in which case we should just forcibly disable
these even when they aren't idle.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Timur Kristóf 2026-06-17 21:14:23 +02:00 committed by Alex Deucher
parent 1fc76380c6
commit a25d644890
1 changed files with 5 additions and 7 deletions
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12
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
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@ -4868,14 +4868,12 @@ static int gfx_v8_0_hw_fini(struct amdgpu_ip_block *ip_block)
}
amdgpu_gfx_rlc_enter_safe_mode(adev, 0);
if (!gfx_v8_0_wait_for_idle(ip_block))
gfx_v8_0_cp_enable(adev, false);
else
if (!amdgpu_in_reset(adev) && gfx_v8_0_wait_for_idle(ip_block))
pr_err("cp is busy, skip halt cp\n");
if (!gfx_v8_0_wait_for_rlc_idle(adev))
adev->gfx.rlc.funcs->stop(adev);
else
pr_err("rlc is busy, skip halt rlc\n");
if (!amdgpu_in_reset(adev) && gfx_v8_0_wait_for_rlc_idle(adev))
pr_err("rlc is busy\n");
gfx_v8_0_cp_enable(adev, false);
adev->gfx.rlc.funcs->stop(adev);
amdgpu_gfx_rlc_exit_safe_mode(adev, 0);
return 0;