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/*
* include/asm-ppc64/cputable.h
*
* 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.
*/
#ifndef __ASM_PPC_CPUTABLE_H
#define __ASM_PPC_CPUTABLE_H
/* Exposed to userland CPU features - Must match ppc32 definitions */
#define PPC_FEATURE_32 0x80000000
#define PPC_FEATURE_64 0x40000000
#define PPC_FEATURE_601_INSTR 0x20000000
#define PPC_FEATURE_HAS_ALTIVEC 0x10000000
#define PPC_FEATURE_HAS_FPU 0x08000000
#define PPC_FEATURE_HAS_MMU 0x04000000
#define PPC_FEATURE_HAS_4xxMAC 0x02000000
#define PPC_FEATURE_UNIFIED_CACHE 0x01000000
#ifdef __KERNEL__
#ifndef __ASSEMBLY__
/* This structure can grow, it's real size is used by head.S code
* via the mkdefs mecanism.
*/
struct cpu_spec;
typedef void (*cpu_setup_t)(unsigned long offset, struct cpu_spec* spec);
struct cpu_spec {
/* CPU is matched via (PVR & pvr_mask) == pvr_value */
unsigned int pvr_mask;
unsigned int pvr_value;
char *cpu_name;
unsigned long cpu_features; /* Kernel features */
unsigned int cpu_user_features; /* Userland features */
/* cache line sizes */
unsigned int icache_bsize;
unsigned int dcache_bsize;
/* this is called to initialize various CPU bits like L1 cache,
* BHT, SPD, etc... from head.S before branching to identify_machine
*/
cpu_setup_t cpu_setup;
/* This is used to identify firmware features which are available
* to the kernel.
*/
unsigned long firmware_features;
};
extern struct cpu_spec cpu_specs[];
extern struct cpu_spec *cur_cpu_spec;
/* firmware feature bitmask values */
#define FIRMWARE_MAX_FEATURES 63
#define FW_FEATURE_PFT (1UL<<0)
#define FW_FEATURE_TCE (1UL<<1)
#define FW_FEATURE_SPRG0 (1UL<<2)
#define FW_FEATURE_DABR (1UL<<3)
#define FW_FEATURE_COPY (1UL<<4)
#define FW_FEATURE_ASR (1UL<<5)
#define FW_FEATURE_DEBUG (1UL<<6)
#define FW_FEATURE_PERF (1UL<<7)
#define FW_FEATURE_DUMP (1UL<<8)
#define FW_FEATURE_INTERRUPT (1UL<<9)
#define FW_FEATURE_MIGRATE (1UL<<10)
typedef struct {
unsigned long val;
char * name;
} firmware_feature_t;
extern firmware_feature_t firmware_features_table[];
#endif /* __ASSEMBLY__ */
/* CPU kernel features */
/* Retain the 32b definitions for the time being - use bottom half of word */
#define CPU_FTR_SPLIT_ID_CACHE 0x0000000000000001
#define CPU_FTR_L2CR 0x0000000000000002
#define CPU_FTR_SPEC7450 0x0000000000000004
#define CPU_FTR_ALTIVEC 0x0000000000000008
#define CPU_FTR_TAU 0x0000000000000010
#define CPU_FTR_CAN_DOZE 0x0000000000000020
#define CPU_FTR_USE_TB 0x0000000000000040
#define CPU_FTR_604_PERF_MON 0x0000000000000080
#define CPU_FTR_601 0x0000000000000100
#define CPU_FTR_HPTE_TABLE 0x0000000000000200
#define CPU_FTR_CAN_NAP 0x0000000000000400
#define CPU_FTR_L3CR 0x0000000000000800
#define CPU_FTR_L3_DISABLE_NAP 0x0000000000001000
#define CPU_FTR_NAP_DISABLE_L2_PR 0x0000000000002000
#define CPU_FTR_DUAL_PLL_750FX 0x0000000000004000
/* Add the 64b processor unique features in the top half of the word */
#define CPU_FTR_SLB 0x0000000100000000
#define CPU_FTR_16M_PAGE 0x0000000200000000
#define CPU_FTR_TLBIEL 0x0000000400000000
#define CPU_FTR_NOEXECUTE 0x0000000800000000
#define CPU_FTR_NODSISRALIGN 0x0000001000000000
#define CPU_FTR_DABR 0x0000002000000000
#define CPU_FTR_IABR 0x0000004000000000
/* Platform firmware features */
#define FW_FTR_ 0x0000000000000001
#ifndef __ASSEMBLY__
#define COMMON_USER_PPC64 (PPC_FEATURE_32 | PPC_FEATURE_64 | \
PPC_FEATURE_HAS_FPU | PPC_FEATURE_HAS_MMU)
#define CPU_FTR_PPCAS_ARCH_V2 (CPU_FTR_SLB | CPU_FTR_16M_PAGE | \
CPU_FTR_TLBIEL | CPU_FTR_NOEXECUTE | \
CPU_FTR_NODSISRALIGN)
#define COMMON_PPC64_FW (0)
#endif
#ifdef __ASSEMBLY__
#define BEGIN_FTR_SECTION 98:
#define END_FTR_SECTION(msk, val) \
99: \
.section __ftr_fixup,"a"; \
.align 3; \
.llong msk; \
.llong val; \
.llong 98b; \
.llong 99b; \
.previous
#define END_FTR_SECTION_IFSET(msk) END_FTR_SECTION((msk), (msk))
#define END_FTR_SECTION_IFCLR(msk) END_FTR_SECTION((msk), 0)
#endif /* __ASSEMBLY__ */
#endif /* __ASM_PPC_CPUTABLE_H */
#endif /* __KERNEL__ */
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