[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v2 15/17] driver/cpufreq: enable Hygon support to cpufreq driver
Enable ACPI cpufreq driver support for Hygon by adding family ID check along with AMD. As Hygon platforms have SMBus device(PCI device ID 0x790b), enable Hygon support to function amd_freq_sensitivity_init(). Signed-off-by: Pu Wen <puwen@xxxxxxxx> --- drivers/cpufreq/acpi-cpufreq.c | 11 +++++++++++ drivers/cpufreq/amd_freq_sensitivity.c | 9 +++++++-- 2 files changed, 18 insertions(+), 2 deletions(-) diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c index b61f4ec..cd97a7e 100644 --- a/drivers/cpufreq/acpi-cpufreq.c +++ b/drivers/cpufreq/acpi-cpufreq.c @@ -61,6 +61,7 @@ enum { #define INTEL_MSR_RANGE (0xffff) #define AMD_MSR_RANGE (0x7) +#define HYGON_MSR_RANGE (0x7) #define MSR_K7_HWCR_CPB_DIS (1ULL << 25) @@ -99,6 +100,10 @@ static bool boost_state(unsigned int cpu) rdmsr_on_cpu(cpu, MSR_K7_HWCR, &lo, &hi); msr = lo | ((u64)hi << 32); return !(msr & MSR_K7_HWCR_CPB_DIS); + case X86_VENDOR_HYGON: + rdmsr_on_cpu(cpu, MSR_K7_HWCR, &lo, &hi); + msr = lo | ((u64)hi << 32); + return !(msr & MSR_K7_HWCR_CPB_DIS); } return false; } @@ -117,6 +122,10 @@ static int boost_set_msr(bool enable) msr_addr = MSR_K7_HWCR; msr_mask = MSR_K7_HWCR_CPB_DIS; break; + case X86_VENDOR_HYGON: + msr_addr = MSR_K7_HWCR; + msr_mask = MSR_K7_HWCR_CPB_DIS; + break; default: return -EINVAL; } @@ -225,6 +234,8 @@ static unsigned extract_msr(struct cpufreq_policy *policy, u32 msr) if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD) msr &= AMD_MSR_RANGE; + else if (boot_cpu_data.x86_vendor == X86_VENDOR_HYGON) + msr &= HYGON_MSR_RANGE; else msr &= INTEL_MSR_RANGE; diff --git a/drivers/cpufreq/amd_freq_sensitivity.c b/drivers/cpufreq/amd_freq_sensitivity.c index be926d9..4ac7c3c 100644 --- a/drivers/cpufreq/amd_freq_sensitivity.c +++ b/drivers/cpufreq/amd_freq_sensitivity.c @@ -111,11 +111,16 @@ static int __init amd_freq_sensitivity_init(void) { u64 val; struct pci_dev *pcidev; + unsigned int pci_vendor; - if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD) + if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD) + pci_vendor = PCI_VENDOR_ID_AMD; + else if (boot_cpu_data.x86_vendor == X86_VENDOR_HYGON) + pci_vendor = PCI_VENDOR_ID_HYGON; + else return -ENODEV; - pcidev = pci_get_device(PCI_VENDOR_ID_AMD, + pcidev = pci_get_device(pci_vendor, PCI_DEVICE_ID_AMD_KERNCZ_SMBUS, NULL); if (!pcidev) { -- 2.7.4 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxx https://lists.xenproject.org/mailman/listinfo/xen-devel
|
Lists.xenproject.org is hosted with RackSpace, monitoring our |