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platform/x86/amd/pmc: Send OS_HINT command for new AMD platform

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To initiate the HW deep state transition, the OS_HINT command has to be
sent to the PMFW. Add this support to the platforms that belong to family
1Ah model 60h series.

Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20240718150119.3427190-1-Shyam-sundar.S-k@amd.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
This commit is contained in:
Shyam Sundar S K 2024-07-18 20:31:19 +05:30 committed by Ilpo Järvinen
parent 4c83ee4bf3
commit 426463d94d
No known key found for this signature in database
GPG Key ID: 59AC4F6153E5CE31
2 changed files with 3 additions and 0 deletions
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2
drivers/platform/x86/amd/pmc/pmc.c
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@ -764,6 +764,7 @@ static int amd_pmc_get_os_hint(struct amd_pmc_dev *dev)
case AMD_CPU_ID_CB:
case AMD_CPU_ID_PS:
case PCI_DEVICE_ID_AMD_1AH_M20H_ROOT:
case PCI_DEVICE_ID_AMD_1AH_M60H_ROOT:
return MSG_OS_HINT_RN;
}
return -EINVAL;
@ -967,6 +968,7 @@ static const struct pci_device_id pmc_pci_ids[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, AMD_CPU_ID_RV) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, AMD_CPU_ID_SP) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_1AH_M20H_ROOT) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_1AH_M60H_ROOT) },
{ }
};

1
drivers/platform/x86/amd/pmc/pmc.h
View File

@ -67,6 +67,7 @@ void amd_mp2_stb_deinit(struct amd_pmc_dev *dev);
#define AMD_CPU_ID_PS 0x14E8
#define AMD_CPU_ID_SP 0x14A4
#define PCI_DEVICE_ID_AMD_1AH_M20H_ROOT 0x1507
#define PCI_DEVICE_ID_AMD_1AH_M60H_ROOT 0x1122
#define PCI_DEVICE_ID_AMD_MP2_STB 0x172c
#endif /* PMC_H */