pattrs.h

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#ifndef _SOC_PATTRS_H_
#define _SOC_PATTRS_H_
 
#include <stdint.h>
#include <cpu/x86/msr.h>
 
enum {
        IACORE_MIN,
        IACORE_LFM,
        IACORE_MAX,
        IACORE_TURBO,
        IACORE_END
};
 
/*
 * The pattrs structure is a common place to stash pertinent information
 * about the processor or platform. Instead of going to the source (msrs, cpuid)
 * every time an attribute is needed use the pattrs structure.
 */
struct pattrs {
        msr_t platform_id;
        msr_t platform_info;
        int iacore_ratios[IACORE_END];
        int iacore_vids[IACORE_END];
        uint32_t cpuid;
        int revid;
        int stepping;
        const void *microcode_patch;
        int address_bits;
        unsigned int num_cpus;
        unsigned int bclk_khz;
};
 
/*
 * This is just to hide the abstraction w/o relying on how the underlying
 * storage is allocated.
 */
extern struct pattrs __global_pattrs;
static inline const struct pattrs *pattrs_get(void)
{
        return &__global_pattrs;
}
 
#endif /* _SOC_PATTRS_H_ */