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Diffstat (limited to 'include/asm-mips/cpu-info.h')
| -rw-r--r-- | include/asm-mips/cpu-info.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/include/asm-mips/cpu-info.h b/include/asm-mips/cpu-info.h new file mode 100644 index 000000000000..20a35b15a31d --- /dev/null +++ b/include/asm-mips/cpu-info.h @@ -0,0 +1,82 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 1994 Waldorf GMBH + * Copyright (C) 1995, 1996, 1997, 1998, 1999, 2001, 2002, 2003 Ralf Baechle + * Copyright (C) 1996 Paul M. Antoine + * Copyright (C) 1999, 2000 Silicon Graphics, Inc. + */ +#ifndef __ASM_CPU_INFO_H +#define __ASM_CPU_INFO_H + +#include <linux/config.h> +#include <asm/cache.h> + +#ifdef CONFIG_SGI_IP27 +#include <asm/sn/types.h> +#endif + +/* + * Descriptor for a cache + */ +struct cache_desc { + unsigned short linesz; /* Size of line in bytes */ + unsigned short ways; /* Number of ways */ + unsigned short sets; /* Number of lines per set */ + unsigned int waysize; /* Bytes per way */ + unsigned int waybit; /* Bits to select in a cache set */ + unsigned int flags; /* Flags describing cache properties */ +}; + +/* + * Flag definitions + */ +#define MIPS_CACHE_NOT_PRESENT 0x00000001 +#define MIPS_CACHE_VTAG 0x00000002 /* Virtually tagged cache */ +#define MIPS_CACHE_ALIASES 0x00000004 /* Cache could have aliases */ +#define MIPS_CACHE_IC_F_DC 0x00000008 /* Ic can refill from D-cache */ +#define MIPS_IC_SNOOPS_REMOTE 0x00000010 /* Ic snoops remote stores */ + +struct cpuinfo_mips { + unsigned long udelay_val; + unsigned long asid_cache; +#if defined(CONFIG_SGI_IP27) +// cpuid_t p_cpuid; /* PROM assigned cpuid */ + cnodeid_t p_nodeid; /* my node ID in compact-id-space */ + nasid_t p_nasid; /* my node ID in numa-as-id-space */ + unsigned char p_slice; /* Physical position on node board */ +#endif +#if 0 + unsigned long loops_per_sec; + unsigned long ipi_count; + unsigned long irq_attempt[NR_IRQS]; + unsigned long smp_local_irq_count; + unsigned long prof_multiplier; + unsigned long prof_counter; +#endif + + /* + * Capability and feature descriptor structure for MIPS CPU + */ + unsigned long options; + unsigned int processor_id; + unsigned int fpu_id; + unsigned int cputype; + int isa_level; + int tlbsize; + struct cache_desc icache; /* Primary I-cache */ + struct cache_desc dcache; /* Primary D or combined I/D cache */ + struct cache_desc scache; /* Secondary cache */ + struct cache_desc tcache; /* Tertiary/split secondary cache */ + void *data; /* Additional data */ +} __attribute__((aligned(SMP_CACHE_BYTES))); + +extern struct cpuinfo_mips cpu_data[]; +#define current_cpu_data cpu_data[smp_processor_id()] + +extern void cpu_probe(void); +extern void cpu_report(void); + +#endif /* __ASM_CPU_INFO_H */ |