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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/microblaze/include/asm/cpuinfo.h
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/*

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 * Generic support for queying CPU info

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 *

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 * Copyright (C) 2007-2009 Michal Simek <[email protected]>

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 * Copyright (C) 2007-2009 PetaLogix

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 * Copyright (C) 2007 John Williams <[email protected]>

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 *

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 * This file is subject to the terms and conditions of the GNU General

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 * Public License. See the file COPYING in the main directory of this

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 * archive for more details.

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 */

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#ifndef _ASM_MICROBLAZE_CPUINFO_H

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#define _ASM_MICROBLAZE_CPUINFO_H

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#include <asm/prom.h>

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/* CPU Version and FPGA Family code conversion table type */

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struct cpu_ver_key {

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	const char *s;

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	const unsigned k;

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};

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extern const struct cpu_ver_key cpu_ver_lookup[];

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struct family_string_key {

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	const char *s;

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	const unsigned k;

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};

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extern const struct family_string_key family_string_lookup[];

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struct cpuinfo {

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	/* Core CPU configuration */

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	u32 use_instr;

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	u32 use_mult;

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	u32 use_fpu;

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	u32 use_exc;

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	u32 ver_code;

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	u32 mmu;

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	u32 endian;

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	/* CPU caches */

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	u32 use_icache;

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	u32 icache_tagbits;

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	u32 icache_write;

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	u32 icache_line_length;

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	u32 icache_size;

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	unsigned long icache_base;

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	unsigned long icache_high;

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	u32 use_dcache;

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	u32 dcache_tagbits;

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	u32 dcache_write;

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	u32 dcache_line_length;

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	u32 dcache_size;

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	u32 dcache_wb;

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	unsigned long dcache_base;

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	unsigned long dcache_high;

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	/* Bus connections */

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	u32 use_dopb;

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	u32 use_iopb;

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	u32 use_dlmb;

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	u32 use_ilmb;

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	u32 num_fsl;

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	/* CPU interrupt line info */

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	u32 irq_edge;

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	u32 irq_positive;

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	u32 area_optimised;

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	/* HW debug support */

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	u32 hw_debug;

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	u32 num_pc_brk;

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	u32 num_rd_brk;

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	u32 num_wr_brk;

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	u32 cpu_clock_freq; /* store real freq of cpu */

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	/* FPGA family */

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	u32 fpga_family_code;

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	/* User define */

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	u32 pvr_user1;

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	u32 pvr_user2;

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};

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extern struct cpuinfo cpuinfo;

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/* fwd declarations of the various CPUinfo populators */

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void setup_cpuinfo(void);

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void set_cpuinfo_static(struct cpuinfo *ci, struct device_node *cpu);

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void set_cpuinfo_pvr_full(struct cpuinfo *ci, struct device_node *cpu);

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static inline unsigned int fcpu(struct device_node *cpu, char *n)

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{

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	const __be32 *val;

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	return (val = of_get_property(cpu, n, NULL)) ?

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							be32_to_cpup(val) : 0;

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}

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#endif /* _ASM_MICROBLAZE_CPUINFO_H */

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