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>
144 lines
3.2 KiB
C
144 lines
3.2 KiB
C
#ifndef __ASM_SH_PROCESSOR_H
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#define __ASM_SH_PROCESSOR_H
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#include <asm/cpu-features.h>
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#include <asm/segment.h>
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#include <asm/cache.h>
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#ifndef __ASSEMBLY__
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/*
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* CPU type and hardware bug flags. Kept separately for each CPU.
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*
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* Each one of these also needs a CONFIG_CPU_SUBTYPE_xxx entry
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* in arch/sh/mm/Kconfig, as well as an entry in arch/sh/kernel/setup.c
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* for parsing the subtype in get_cpu_subtype().
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*/
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enum cpu_type {
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/* SH-2 types */
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CPU_SH7619,
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/* SH-2A types */
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CPU_SH7201, CPU_SH7203, CPU_SH7206, CPU_SH7263, CPU_MXG,
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/* SH-3 types */
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CPU_SH7705, CPU_SH7706, CPU_SH7707,
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CPU_SH7708, CPU_SH7708S, CPU_SH7708R,
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CPU_SH7709, CPU_SH7709A, CPU_SH7710, CPU_SH7712,
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CPU_SH7720, CPU_SH7721, CPU_SH7729,
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/* SH-4 types */
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CPU_SH7750, CPU_SH7750S, CPU_SH7750R, CPU_SH7751, CPU_SH7751R,
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CPU_SH7760, CPU_SH4_202, CPU_SH4_501,
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/* SH-4A types */
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CPU_SH7763, CPU_SH7770, CPU_SH7780, CPU_SH7781, CPU_SH7785, CPU_SH7786,
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CPU_SH7723, CPU_SH7724, CPU_SHX3,
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/* SH4AL-DSP types */
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CPU_SH7343, CPU_SH7722, CPU_SH7366,
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/* SH-5 types */
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CPU_SH5_101, CPU_SH5_103,
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/* Unknown subtype */
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CPU_SH_NONE
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};
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enum cpu_family {
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CPU_FAMILY_SH2,
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CPU_FAMILY_SH2A,
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CPU_FAMILY_SH3,
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CPU_FAMILY_SH4,
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CPU_FAMILY_SH4A,
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CPU_FAMILY_SH4AL_DSP,
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CPU_FAMILY_SH5,
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CPU_FAMILY_UNKNOWN,
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};
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/*
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* TLB information structure
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*
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* Defined for both I and D tlb, per-processor.
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*/
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struct tlb_info {
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unsigned long long next;
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unsigned long long first;
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unsigned long long last;
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unsigned int entries;
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unsigned int step;
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unsigned long flags;
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};
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struct sh_cpuinfo {
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unsigned int type, family;
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int cut_major, cut_minor;
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unsigned long loops_per_jiffy;
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unsigned long asid_cache;
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struct cache_info icache; /* Primary I-cache */
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struct cache_info dcache; /* Primary D-cache */
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struct cache_info scache; /* Secondary cache */
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/* TLB info */
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struct tlb_info itlb;
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struct tlb_info dtlb;
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unsigned long flags;
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} __attribute__ ((aligned(L1_CACHE_BYTES)));
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extern struct sh_cpuinfo cpu_data[];
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#define boot_cpu_data cpu_data[0]
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#define current_cpu_data cpu_data[smp_processor_id()]
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#define raw_current_cpu_data cpu_data[raw_smp_processor_id()]
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#define cpu_sleep() __asm__ __volatile__ ("sleep" : : : "memory")
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#define cpu_relax() barrier()
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/* Forward decl */
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struct seq_operations;
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extern struct pt_regs fake_swapper_regs;
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/* arch/sh/kernel/setup.c */
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const char *get_cpu_subtype(struct sh_cpuinfo *c);
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extern const struct seq_operations cpuinfo_op;
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/* processor boot mode configuration */
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#define MODE_PIN0 (1 << 0)
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#define MODE_PIN1 (1 << 1)
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#define MODE_PIN2 (1 << 2)
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#define MODE_PIN3 (1 << 3)
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#define MODE_PIN4 (1 << 4)
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#define MODE_PIN5 (1 << 5)
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#define MODE_PIN6 (1 << 6)
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#define MODE_PIN7 (1 << 7)
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#define MODE_PIN8 (1 << 8)
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#define MODE_PIN9 (1 << 9)
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#define MODE_PIN10 (1 << 10)
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#define MODE_PIN11 (1 << 11)
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#define MODE_PIN12 (1 << 12)
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#define MODE_PIN13 (1 << 13)
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#define MODE_PIN14 (1 << 14)
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#define MODE_PIN15 (1 << 15)
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int generic_mode_pins(void);
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int test_mode_pin(int pin);
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#ifdef CONFIG_VSYSCALL
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int vsyscall_init(void);
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#else
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#define vsyscall_init() do { } while (0)
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#endif
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#endif /* __ASSEMBLY__ */
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#ifdef CONFIG_SUPERH32
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# include "processor_32.h"
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#else
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# include "processor_64.h"
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#endif
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#endif /* __ASM_SH_PROCESSOR_H */
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