cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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cputype.h (2117B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef __ASM_MACH_CPUTYPE_H
      3#define __ASM_MACH_CPUTYPE_H
      4
      5#if defined(CONFIG_ARM) || defined(CONFIG_ARM64)
      6#include <asm/cputype.h>
      7#endif
      8
      9/*
     10 *  CPU   Stepping   CPU_ID      CHIP_ID
     11 *
     12 * PXA168    S0    0x56158400   0x0000C910
     13 * PXA168    A0    0x56158400   0x00A0A168
     14 * PXA910    Y1    0x56158400   0x00F2C920
     15 * PXA910    A0    0x56158400   0x00F2C910
     16 * PXA910    A1    0x56158400   0x00A0C910
     17 * PXA920    Y0    0x56158400   0x00F2C920
     18 * PXA920    A0    0x56158400   0x00A0C920
     19 * PXA920    A1    0x56158400   0x00A1C920
     20 * MMP2	     Z0	   0x560f5811   0x00F00410
     21 * MMP2      Z1    0x560f5811   0x00E00410
     22 * MMP2      A0    0x560f5811   0x00A0A610
     23 * MMP3      A0    0x562f5842   0x00A02128
     24 * MMP3      B0    0x562f5842   0x00B02128
     25 */
     26
     27extern unsigned int mmp_chip_id;
     28
     29#ifdef CONFIG_CPU_PXA168
     30static inline int cpu_is_pxa168(void)
     31{
     32	return (((read_cpuid_id() >> 8) & 0xff) == 0x84) &&
     33		((mmp_chip_id & 0xfff) == 0x168);
     34}
     35#else
     36#define cpu_is_pxa168()	(0)
     37#endif
     38
     39/* cpu_is_pxa910() is shared on both pxa910 and pxa920 */
     40#ifdef CONFIG_CPU_PXA910
     41static inline int cpu_is_pxa910(void)
     42{
     43	return (((read_cpuid_id() >> 8) & 0xff) == 0x84) &&
     44		(((mmp_chip_id & 0xfff) == 0x910) ||
     45		 ((mmp_chip_id & 0xfff) == 0x920));
     46}
     47#else
     48#define cpu_is_pxa910()	(0)
     49#endif
     50
     51#if defined(CONFIG_CPU_MMP2) || defined(CONFIG_MACH_MMP2_DT)
     52static inline int cpu_is_mmp2(void)
     53{
     54	return (((read_cpuid_id() >> 8) & 0xff) == 0x58) &&
     55		(((mmp_chip_id & 0xfff) == 0x410) ||
     56		 ((mmp_chip_id & 0xfff) == 0x610));
     57}
     58#else
     59#define cpu_is_mmp2()	(0)
     60#endif
     61
     62#ifdef CONFIG_MACH_MMP3_DT
     63static inline int cpu_is_mmp3(void)
     64{
     65	return (((read_cpuid_id() >> 8) & 0xff) == 0x58) &&
     66		((mmp_chip_id & 0xffff) == 0x2128);
     67}
     68
     69static inline int cpu_is_mmp3_a0(void)
     70{
     71	return (cpu_is_mmp3() &&
     72		((mmp_chip_id & 0x00ff0000) == 0x00a00000));
     73}
     74
     75static inline int cpu_is_mmp3_b0(void)
     76{
     77	return (cpu_is_mmp3() &&
     78		((mmp_chip_id & 0x00ff0000) == 0x00b00000));
     79}
     80
     81#else
     82#define cpu_is_mmp3()		(0)
     83#define cpu_is_mmp3_a0()	(0)
     84#define cpu_is_mmp3_b0()	(0)
     85#endif
     86
     87#endif /* __ASM_MACH_CPUTYPE_H */