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drm/amdgpu: add pre_soft_reset ip func

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It will be used before soft_reset to do some preparing work for reset.

Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Chunming Zhou 2016-07-18 10:04:34 +08:00 committed by Alex Deucher
parent 3d7c638490
commit d31a501ead
2 changed files with 19 additions and 0 deletions
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17
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View File

@ -1955,6 +1955,23 @@ static bool amdgpu_check_soft_reset(struct amdgpu_device *adev)
return asic_hang;
}
int amdgpu_pre_soft_reset(struct amdgpu_device *adev)
{
int i, r = 0;
for (i = 0; i < adev->num_ip_blocks; i++) {
if (!adev->ip_block_status[i].valid)
continue;
if (adev->ip_blocks[i].funcs->pre_soft_reset) {
r = adev->ip_blocks[i].funcs->pre_soft_reset(adev);
if (r)
return r;
}
}
return 0;
}
/**
* amdgpu_gpu_reset - reset the asic
*

2
drivers/gpu/drm/amd/include/amd_shared.h
View File

@ -161,6 +161,8 @@ struct amd_ip_funcs {
int (*wait_for_idle)(void *handle);
/* check soft reset the IP block */
int (*check_soft_reset)(void *handle);
/* pre soft reset the IP block */
int (*pre_soft_reset)(void *handle);
/* soft reset the IP block */
int (*soft_reset)(void *handle);
/* enable/disable cg for the IP block */