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drm/amdgpu: handle BACO synchronization with secondary funcs

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Extend secondary function handling for runtime pm beyond audio
to USB and UCSI.

Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2022-01-25 15:00:14 -05:00
parent d0d66b8c66
commit 243c719e87
1 changed files with 18 additions and 12 deletions
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18
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
View file

@ -1946,20 +1946,26 @@ MODULE_DEVICE_TABLE(pci, pciidlist);
static const struct drm_driver amdgpu_kms_driver;
static void amdgpu_get_audio_func(struct amdgpu_device *adev)
static void amdgpu_get_secondary_funcs(struct amdgpu_device *adev)
{
struct pci_dev *p = NULL;
int i;
/* 0 - GPU
* 1 - audio
* 2 - USB
* 3 - UCSI
*/
for (i = 1; i < 4; i++) {
p = pci_get_domain_bus_and_slot(pci_domain_nr(adev->pdev->bus),
adev->pdev->bus->number, 1);
adev->pdev->bus->number, i);
if (p) {
pm_runtime_get_sync(&p->dev);
pm_runtime_mark_last_busy(&p->dev);
pm_runtime_put_autosuspend(&p->dev);
pci_dev_put(p);
}
}
}
static int amdgpu_pci_probe(struct pci_dev *pdev,
@ -2119,14 +2125,14 @@ static int amdgpu_pci_probe(struct pci_dev *pdev,
* be no PMFW-aware D-state transition(D0->D3) on runpm
* suspend. Thus the BACO will be not correctly kicked in.
*
* Via amdgpu_get_audio_func(), the audio dev is put
* Via amdgpu_get_secondary_funcs(), the audio dev is put
* into D0 state. Then there will be a PMFW-aware D-state
* transition(D0->D3) on runpm suspend.
*/
if (amdgpu_device_supports_baco(ddev) &&
!(adev->flags & AMD_IS_APU) &&
(adev->asic_type >= CHIP_NAVI10))
amdgpu_get_audio_func(adev);
amdgpu_get_secondary_funcs(adev);
}
return 0;