From 64c3e4a868f1ddde8eee2bb038a2ed0e8f06a247 Mon Sep 17 00:00:00 2001 From: Mario Limonciello Date: Sun, 1 Jun 2025 20:44:30 -0500 Subject: drm/amd: Add support for a complete pmops action 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 Link: https://lore.kernel.org/r/20250602014432.3538345-2-superm1@kernel.org Signed-off-by: Mario Limonciello Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_device.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index b16f7c4beb22..d9b1bd97491f 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -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 * -- cgit