path: root/arch/powerpc/kernel/cputable.c

/*
 *  Copyright (C) 2001 Ben. Herrenschmidt (benh@kernel.crashing.org)
 *
 *  Modifications for ppc64:
 *      Copyright (C) 2003 Dave Engebretsen <engebret@us.ibm.com>
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU General Public License
 *  as published by the Free Software Foundation; either version
 *  2 of the License, or (at your option) any later version.
 */

#include <linux/string.h>
#include <linux/sched.h>
#include <linux/threads.h>
#include <linux/init.h>
#include <linux/module.h>

#include <asm/oprofile_impl.h>
#include <asm/cputable.h>
#include <asm/prom.h>		/* for PTRRELOC on ARCH=ppc */

struct cpu_spec* cur_cpu_spec = NULL;
EXPORT_SYMBOL(cur_cpu_spec);

/* NOTE:
 * Unlike ppc32, ppc64 will only call this once for the boot CPU, it's
 * the responsibility of the appropriate CPU save/restore functions to
 * eventually copy these settings over. Those save/restore aren't yet
 * part of the cputable though. That has to be fixed for both ppc32
 * and ppc64
 */
#ifdef CONFIG_PPC32
extern void __setup_cpu_603(unsigned long offset, struct cpu_spec* spec);
extern void __setup_cpu_604(unsigned long offset, struct cpu_spec* spec);
extern void __setup_cpu_750(unsigned long offset, struct cpu_spec* spec);
extern void __setup_cpu_750cx(unsigned long offset, struct cpu_spec* spec);
extern void __setup_cpu_750fx(unsigned long offset, struct cpu_spec* spec);
extern void __setup_cpu_7400(unsigned long offset, struct cpu_spec* spec);
extern void __setup_cpu_7410(unsigned long offset, struct cpu_spec* spec);
extern void __setup_cpu_745x(unsigned long offset, struct cpu_spec* spec);
#endif /* CONFIG_PPC32 */
#ifdef CONFIG_PPC64
extern void __setup_cpu_ppc970(unsigned long offset, struct cpu_spec* spec);
extern void __restore_cpu_ppc970(void);
#endif /* CONFIG_PPC64 */

/* This table only contains "desktop" CPUs, it need to be filled with embedded
 * ones as well...
 */
#define COMMON_USER		(PPC_FEATURE_32 | PPC_FEATURE_HAS_FPU | \
				 PPC_FEATURE_HAS_MMU)
#define COMMON_USER_PPC64	(COMMON_USER | PPC_FEATURE_64)
#define COMMON_USER_POWER4	(COMMON_USER_PPC64 | PPC_FEATURE_POWER4)
#define COMMON_USER_POWER5	(COMMON_USER_PPC64 | PPC_FEATURE_POWER5 |\
				 PPC_FEATURE_SMT | PPC_FEATURE_ICACHE_SNOOP)
#define COMMON_USER_POWER5_PLUS	(COMMON_USER_PPC64 | PPC_FEATURE_POWER5_PLUS|\
				 PPC_FEATURE_SMT | PPC_FEATURE_ICACHE_SNOOP)
#define COMMON_USER_POWER6	(COMMON_USER_PPC64 | PPC_FEATURE_ARCH_2_05 |\
				 PPC_FEATURE_SMT | PPC_FEATURE_ICACHE_SNOOP | \
				 PPC_FEATURE_TRUE_LE)
#define COMMON_USER_PA6T	(COMMON_USER_PPC64 | PPC_FEATURE_PA6T |\
				 PPC_FEATURE_TRUE_LE | \
				 PPC_FEATURE_HAS_ALTIVEC_COMP)
#define COMMON_USER_BOOKE	(PPC_FEATURE_32 | PPC_FEATURE_HAS_MMU | \
				 PPC_FEATURE_BOOKE)

/* We only set the spe features if the kernel was compiled with
 * spe support
 */
#ifdef CONFIG_SPE
#define PPC_FEATURE_SPE_COMP	PPC_FEATURE_HAS_SPE
#else
#define PPC_FEATURE_SPE_COMP	0
#endif

static struct cpu_spec cpu_specs[] = {
#ifdef CONFIG_PPC64
	{	/* Power3 */
		.pvr_mask		= 0xffff0000,
		.pvr_value		= 0x00400000,
		.cpu_name		= "POWER3 (630)",
		.cpu_features		= CPU_FTRS_POWER3,
		.cpu_user_features	= COMMON_USER_PPC64|PPC_FEATURE_PPC_LE,
		.icache_bsize		= 128,
		.dcache_bsize		= 128,
		.num_pmcs		= 8,
		.oprofile_cpu_type	= "ppc64/power3",
		.oprofile_type		= PPC_OPROFILE_RS64,
		.platform		= "power3",
	},
	{	/* Power3+ */
		.pvr_mask		= 0xffff0000,
		.pvr_value		= 0x00410000,
		.cpu_name		= "POWER3 (630+)",
		.cpu_features		= CPU_FTRS_POWER3,
		.cpu_user_features	= COMMON_USER_PPC64|PPC_FEATURE_PPC_LE,
		.icache_bsize		= 128,
		.dcache_bsize		= 128,