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drm/amd: Add support for a complete pmops action

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complete() callbacks are supposed to handle reversing anything
that occurred during prepare() callbacks.  They'll be called on every
power state transition, and will also be called if the sequence is
failed (such as an aborted suspend).

Add support for IP blocks to support this action.

Reviewed-by: Alex Hung <alex.hung@amd.com>
Link: https://lore.kernel.org/r/20250602014432.3538345-2-superm1@kernel.org
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Mario Limonciello
2025-06-01 20:44:30 -05:00
committed by Alex Deucher
parent dd3999b658
commit 64c3e4a868
4 changed files with 25 additions and 1 deletions
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22
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
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@@ -5040,6 +5040,28 @@ int amdgpu_device_prepare(struct drm_device *dev)
return 0;
}
/**
* amdgpu_device_complete - complete power state transition
*
* @dev: drm dev pointer
*
* Undo the changes from amdgpu_device_prepare. This will be
* called on all resume transitions, including those that failed.
*/
void amdgpu_device_complete(struct drm_device *dev)
{
struct amdgpu_device *adev = drm_to_adev(dev);
int i;
for (i = 0; i < adev->num_ip_blocks; i++) {
if (!adev->ip_blocks[i].status.valid)
continue;
if (!adev->ip_blocks[i].version->funcs->complete)
continue;
adev->ip_blocks[i].version->funcs->complete(&adev->ip_blocks[i]);
}
}
/**
* amdgpu_device_suspend - initiate device suspend
*