diff options
Diffstat (limited to 'include/linux/peci-cpu.h')
| -rw-r--r-- | include/linux/peci-cpu.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/include/linux/peci-cpu.h b/include/linux/peci-cpu.h new file mode 100644 index 000000000000..601cdd086bf6 --- /dev/null +++ b/include/linux/peci-cpu.h @@ -0,0 +1,64 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* Copyright (c) 2021 Intel Corporation */ + +#ifndef __LINUX_PECI_CPU_H +#define __LINUX_PECI_CPU_H + +#include <linux/types.h> + +/* Copied from x86 <asm/processor.h> */ +#define X86_VENDOR_INTEL 0 + +/* Copied from x86 <asm/cpu_device_id.h> */ +#define VFM_MODEL_BIT 0 +#define VFM_FAMILY_BIT 8 +#define VFM_VENDOR_BIT 16 +#define VFM_RSVD_BIT 24 + +#define VFM_MODEL_MASK GENMASK(VFM_FAMILY_BIT - 1, VFM_MODEL_BIT) +#define VFM_FAMILY_MASK GENMASK(VFM_VENDOR_BIT - 1, VFM_FAMILY_BIT) +#define VFM_VENDOR_MASK GENMASK(VFM_RSVD_BIT - 1, VFM_VENDOR_BIT) + +#define VFM_MODEL(vfm) (((vfm) & VFM_MODEL_MASK) >> VFM_MODEL_BIT) +#define VFM_FAMILY(vfm) (((vfm) & VFM_FAMILY_MASK) >> VFM_FAMILY_BIT) +#define VFM_VENDOR(vfm) (((vfm) & VFM_VENDOR_MASK) >> VFM_VENDOR_BIT) + +#define VFM_MAKE(_vendor, _family, _model) ( \ + ((_model) << VFM_MODEL_BIT) | \ + ((_family) << VFM_FAMILY_BIT) | \ + ((_vendor) << VFM_VENDOR_BIT) \ +) +/* End of copied code */ + +#include "../../arch/x86/include/asm/intel-family.h" + +#define PECI_PCS_PKG_ID 0 /* Package Identifier Read */ +#define PECI_PKG_ID_CPU_ID 0x0000 /* CPUID Info */ +#define PECI_PKG_ID_PLATFORM_ID 0x0001 /* Platform ID */ +#define PECI_PKG_ID_DEVICE_ID 0x0002 /* Uncore Device ID */ +#define PECI_PKG_ID_MAX_THREAD_ID 0x0003 /* Max Thread ID */ +#define PECI_PKG_ID_MICROCODE_REV 0x0004 /* CPU Microcode Update Revision */ +#define PECI_PKG_ID_MCA_ERROR_LOG 0x0005 /* Machine Check Status */ +#define PECI_PCS_MODULE_TEMP 9 /* Per Core DTS Temperature Read */ +#define PECI_PCS_THERMAL_MARGIN 10 /* DTS thermal margin */ +#define PECI_PCS_DDR_DIMM_TEMP 14 /* DDR DIMM Temperature */ +#define PECI_PCS_TEMP_TARGET 16 /* Temperature Target Read */ +#define PECI_PCS_TDP_UNITS 30 /* Units for power/energy registers */ + +struct peci_device; + +int peci_temp_read(struct peci_device *device, s16 *temp_raw); + +int peci_pcs_read(struct peci_device *device, u8 index, + u16 param, u32 *data); + +int peci_pci_local_read(struct peci_device *device, u8 bus, u8 dev, + u8 func, u16 reg, u32 *data); + +int peci_ep_pci_local_read(struct peci_device *device, u8 seg, + u8 bus, u8 dev, u8 func, u16 reg, u32 *data); + +int peci_mmio_read(struct peci_device *device, u8 bar, u8 seg, + u8 bus, u8 dev, u8 func, u64 address, u32 *data); + +#endif /* __LINUX_PECI_CPU_H */ |