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drm/amdgpu: validate suspend before function call

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Before making a function call to suspend, validate
the function pointer like we do in sw_init.

Use the helper function amdgpu_ip_block_suspend where
same checks and calls are repeated.

Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Sunil Khatri
2024-10-17 19:17:22 +05:30
committed by Alex Deucher
parent dad01f93f4
commit e095026f00
6 changed files with 31 additions and 46 deletions
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36
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View File

@@ -272,6 +272,24 @@ void amdgpu_reg_state_sysfs_fini(struct amdgpu_device *adev)
sysfs_remove_bin_file(&adev->dev->kobj, &bin_attr_reg_state);
}
int amdgpu_ip_block_suspend(struct amdgpu_ip_block *ip_block)
{
int r;
if (ip_block->version->funcs->suspend) {
r = ip_block->version->funcs->suspend(ip_block);
if (r) {
dev_err(ip_block->adev->dev,
"suspend of IP block <%s> failed %d\n",
ip_block->version->funcs->name, r);
return r;
}
}
ip_block->status.hw = false;
return 0;
}
/**
* DOC: board_info
*
@@ -3473,15 +3491,9 @@ static int amdgpu_device_ip_suspend_phase1(struct amdgpu_device *adev)
continue;
/* XXX handle errors */
r = adev->ip_blocks[i].version->funcs->suspend(&adev->ip_blocks[i]);
/* XXX handle errors */
if (r) {
DRM_ERROR("suspend of IP block <%s> failed %d\n",
adev->ip_blocks[i].version->funcs->name, r);
r = amdgpu_ip_block_suspend(&adev->ip_blocks[i]);
if (r)
return r;
}
adev->ip_blocks[i].status.hw = false;
}
return 0;
@@ -3555,13 +3567,9 @@ static int amdgpu_device_ip_suspend_phase2(struct amdgpu_device *adev)
continue;
/* XXX handle errors */
r = adev->ip_blocks[i].version->funcs->suspend(&adev->ip_blocks[i]);
/* XXX handle errors */
if (r) {
DRM_ERROR("suspend of IP block <%s> failed %d\n",
adev->ip_blocks[i].version->funcs->name, r);
}
r = amdgpu_ip_block_suspend(&adev->ip_blocks[i]);
adev->ip_blocks[i].status.hw = false;
/* handle putting the SMC in the appropriate state */
if (!amdgpu_sriov_vf(adev)) {
if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SMC) {