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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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e82da214d2
This adds a family member to struct sh_cpuinfo, which allows us to fall back more on the probe routines to work out what sort of subtype we are running on. This will be used by the CPU cache initialization code in order to first do family-level initialization, followed by subtype-level optimizations. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
74 lines
1.3 KiB
C
74 lines
1.3 KiB
C
#ifndef __ASM_SH_BUGS_H
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#define __ASM_SH_BUGS_H
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/*
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* This is included by init/main.c to check for architecture-dependent bugs.
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*
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* Needs:
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* void check_bugs(void);
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*/
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/*
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* I don't know of any Super-H bugs yet.
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*/
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#include <asm/processor.h>
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static void __init check_bugs(void)
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{
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extern unsigned long loops_per_jiffy;
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char *p = &init_utsname()->machine[2]; /* "sh" */
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current_cpu_data.loops_per_jiffy = loops_per_jiffy;
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switch (current_cpu_data.family) {
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case CPU_FAMILY_SH2:
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*p++ = '2';
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break;
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case CPU_FAMILY_SH2A:
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*p++ = '2';
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*p++ = 'a';
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break;
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case CPU_FAMILY_SH3:
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*p++ = '3';
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break;
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case CPU_FAMILY_SH4:
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*p++ = '4';
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break;
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case CPU_FAMILY_SH4A:
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*p++ = '4';
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*p++ = 'a';
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break;
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case CPU_FAMILY_SH4AL_DSP:
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*p++ = '4';
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*p++ = 'a';
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*p++ = 'l';
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*p++ = '-';
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*p++ = 'd';
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*p++ = 's';
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*p++ = 'p';
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break;
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case CPU_FAMILY_SH5:
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*p++ = '6';
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*p++ = '4';
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break;
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case CPU_FAMILY_UNKNOWN:
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/*
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* Specifically use CPU_FAMILY_UNKNOWN rather than
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* default:, so we're able to have the compiler whine
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* about unhandled enumerations.
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*/
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break;
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}
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printk("CPU: %s\n", get_cpu_subtype(¤t_cpu_data));
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#ifndef __LITTLE_ENDIAN__
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/* 'eb' means 'Endian Big' */
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*p++ = 'e';
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*p++ = 'b';
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#endif
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*p = '\0';
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}
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#endif /* __ASM_SH_BUGS_H */
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