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drm/amdgpu: Rework amdgpu_device_lock_adev

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This functions needs to be split into 2 parts where
one is called only once for locking single instance of
reset_domain's sem and reset flag and the other part
which handles MP1 states should still be called for
each device in XGMI hive.

Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://www.spinics.net/lists/amd-gfx/msg74118.html
This commit is contained in:
Andrey Grodzovsky
2022-01-25 11:32:47 -05:00
parent 89a7a87093
commit e923be9934
3 changed files with 43 additions and 17 deletions
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19
drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
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@@ -137,5 +137,24 @@ struct amdgpu_reset_domain *amdgpu_reset_create_reset_domain(enum amdgpu_reset_d
return reset_domain;
}
void amdgpu_device_lock_reset_domain(struct amdgpu_reset_domain *reset_domain,
struct amdgpu_hive_info *hive)
{
atomic_set(&reset_domain->in_gpu_reset, 1);
if (hive) {
down_write_nest_lock(&reset_domain->sem, &hive->hive_lock);
} else {
down_write(&reset_domain->sem);
}
}
void amdgpu_device_unlock_reset_domain(struct amdgpu_reset_domain *reset_domain)
{
atomic_set(&reset_domain->in_gpu_reset, 0);
up_write(&reset_domain->sem);
}