8f40611d2b
options and the precense of the MT ASE. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
187 lines
5.3 KiB
C
187 lines
5.3 KiB
C
/*
|
|
* 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) 2003, 2004 Ralf Baechle
|
|
* Copyright (C) 2004 Maciej W. Rozycki
|
|
*/
|
|
#ifndef __ASM_CPU_FEATURES_H
|
|
#define __ASM_CPU_FEATURES_H
|
|
|
|
#include <linux/config.h>
|
|
|
|
#include <asm/cpu.h>
|
|
#include <asm/cpu-info.h>
|
|
#include <cpu-feature-overrides.h>
|
|
|
|
/*
|
|
* SMP assumption: Options of CPU 0 are a superset of all processors.
|
|
* This is true for all known MIPS systems.
|
|
*/
|
|
#ifndef cpu_has_tlb
|
|
#define cpu_has_tlb (cpu_data[0].options & MIPS_CPU_TLB)
|
|
#endif
|
|
#ifndef cpu_has_4kex
|
|
#define cpu_has_4kex (cpu_data[0].options & MIPS_CPU_4KEX)
|
|
#endif
|
|
#ifndef cpu_has_4ktlb
|
|
#define cpu_has_4ktlb (cpu_data[0].options & MIPS_CPU_4KTLB)
|
|
#endif
|
|
#ifndef cpu_has_fpu
|
|
#define cpu_has_fpu (cpu_data[0].options & MIPS_CPU_FPU)
|
|
#endif
|
|
#ifndef cpu_has_32fpr
|
|
#define cpu_has_32fpr (cpu_data[0].options & MIPS_CPU_32FPR)
|
|
#endif
|
|
#ifndef cpu_has_counter
|
|
#define cpu_has_counter (cpu_data[0].options & MIPS_CPU_COUNTER)
|
|
#endif
|
|
#ifndef cpu_has_watch
|
|
#define cpu_has_watch (cpu_data[0].options & MIPS_CPU_WATCH)
|
|
#endif
|
|
#ifndef cpu_has_divec
|
|
#define cpu_has_divec (cpu_data[0].options & MIPS_CPU_DIVEC)
|
|
#endif
|
|
#ifndef cpu_has_vce
|
|
#define cpu_has_vce (cpu_data[0].options & MIPS_CPU_VCE)
|
|
#endif
|
|
#ifndef cpu_has_cache_cdex_p
|
|
#define cpu_has_cache_cdex_p (cpu_data[0].options & MIPS_CPU_CACHE_CDEX_P)
|
|
#endif
|
|
#ifndef cpu_has_cache_cdex_s
|
|
#define cpu_has_cache_cdex_s (cpu_data[0].options & MIPS_CPU_CACHE_CDEX_S)
|
|
#endif
|
|
#ifndef cpu_has_prefetch
|
|
#define cpu_has_prefetch (cpu_data[0].options & MIPS_CPU_PREFETCH)
|
|
#endif
|
|
#ifndef cpu_has_mcheck
|
|
#define cpu_has_mcheck (cpu_data[0].options & MIPS_CPU_MCHECK)
|
|
#endif
|
|
#ifndef cpu_has_ejtag
|
|
#define cpu_has_ejtag (cpu_data[0].options & MIPS_CPU_EJTAG)
|
|
#endif
|
|
#ifndef cpu_has_llsc
|
|
#define cpu_has_llsc (cpu_data[0].options & MIPS_CPU_LLSC)
|
|
#endif
|
|
#ifndef cpu_has_mips16
|
|
#define cpu_has_mips16 (cpu_data[0].ases & MIPS_ASE_MIPS16)
|
|
#endif
|
|
#ifndef cpu_has_mdmx
|
|
#define cpu_has_mdmx (cpu_data[0].ases & MIPS_ASE_MDMX)
|
|
#endif
|
|
#ifndef cpu_has_mips3d
|
|
#define cpu_has_mips3d (cpu_data[0].ases & MIPS_ASE_MIPS3D)
|
|
#endif
|
|
#ifndef cpu_has_smartmips
|
|
#define cpu_has_smartmips (cpu_data[0].ases & MIPS_ASE_SMARTMIPS)
|
|
#endif
|
|
#ifndef cpu_has_vtag_icache
|
|
#define cpu_has_vtag_icache (cpu_data[0].icache.flags & MIPS_CACHE_VTAG)
|
|
#endif
|
|
#ifndef cpu_has_dc_aliases
|
|
#define cpu_has_dc_aliases (cpu_data[0].dcache.flags & MIPS_CACHE_ALIASES)
|
|
#endif
|
|
#ifndef cpu_has_ic_fills_f_dc
|
|
#define cpu_has_ic_fills_f_dc (cpu_data[0].icache.flags & MIPS_CACHE_IC_F_DC)
|
|
#endif
|
|
|
|
/*
|
|
* I-Cache snoops remote store. This only matters on SMP. Some multiprocessors
|
|
* such as the R10000 have I-Caches that snoop local stores; the embedded ones
|
|
* don't. For maintaining I-cache coherency this means we need to flush the
|
|
* D-cache all the way back to whever the I-cache does refills from, so the
|
|
* I-cache has a chance to see the new data at all. Then we have to flush the
|
|
* I-cache also.
|
|
* Note we may have been rescheduled and may no longer be running on the CPU
|
|
* that did the store so we can't optimize this into only doing the flush on
|
|
* the local CPU.
|
|
*/
|
|
#ifndef cpu_icache_snoops_remote_store
|
|
#ifdef CONFIG_SMP
|
|
#define cpu_icache_snoops_remote_store (cpu_data[0].icache.flags & MIPS_IC_SNOOPS_REMOTE)
|
|
#else
|
|
#define cpu_icache_snoops_remote_store 1
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef cpu_has_dsp
|
|
#define cpu_has_dsp (cpu_data[0].ases & MIPS_ASE_DSP)
|
|
#endif
|
|
|
|
#ifdef CONFIG_MIPS_MT
|
|
#ifndef cpu_has_mipsmt
|
|
# define cpu_has_mipsmt (cpu_data[0].ases & MIPS_ASE_MIPSMT)
|
|
#endif
|
|
#else
|
|
# define cpu_has_mipsmt 0
|
|
#endif
|
|
|
|
#ifdef CONFIG_32BIT
|
|
# ifndef cpu_has_nofpuex
|
|
# define cpu_has_nofpuex (cpu_data[0].options & MIPS_CPU_NOFPUEX)
|
|
# endif
|
|
# ifndef cpu_has_64bits
|
|
# define cpu_has_64bits (cpu_data[0].isa_level & MIPS_CPU_ISA_64BIT)
|
|
# endif
|
|
# ifndef cpu_has_64bit_zero_reg
|
|
# define cpu_has_64bit_zero_reg (cpu_data[0].isa_level & MIPS_CPU_ISA_64BIT)
|
|
# endif
|
|
# ifndef cpu_has_64bit_gp_regs
|
|
# define cpu_has_64bit_gp_regs 0
|
|
# endif
|
|
# ifndef cpu_has_64bit_addresses
|
|
# define cpu_has_64bit_addresses 0
|
|
# endif
|
|
#endif
|
|
|
|
#ifdef CONFIG_64BIT
|
|
# ifndef cpu_has_nofpuex
|
|
# define cpu_has_nofpuex 0
|
|
# endif
|
|
# ifndef cpu_has_64bits
|
|
# define cpu_has_64bits 1
|
|
# endif
|
|
# ifndef cpu_has_64bit_zero_reg
|
|
# define cpu_has_64bit_zero_reg 1
|
|
# endif
|
|
# ifndef cpu_has_64bit_gp_regs
|
|
# define cpu_has_64bit_gp_regs 1
|
|
# endif
|
|
# ifndef cpu_has_64bit_addresses
|
|
# define cpu_has_64bit_addresses 1
|
|
# endif
|
|
#endif
|
|
|
|
#ifdef CONFIG_CPU_MIPSR2
|
|
# if defined(CONFIG_CPU_MIPSR2_IRQ_VI) && !defined(cpu_has_vint)
|
|
# define cpu_has_vint (cpu_data[0].options & MIPS_CPU_VINT)
|
|
# else
|
|
# define cpu_has_vint 0
|
|
# endif
|
|
# if defined(CONFIG_CPU_MIPSR2_IRQ_EI) && !defined(cpu_has_veic)
|
|
# define cpu_has_veic (cpu_data[0].options & MIPS_CPU_VEIC)
|
|
# else
|
|
# define cpu_has_veic 0
|
|
# endif
|
|
#else
|
|
# define cpu_has_vint 0
|
|
# define cpu_has_veic 0
|
|
#endif
|
|
|
|
#ifndef cpu_has_subset_pcaches
|
|
#define cpu_has_subset_pcaches (cpu_data[0].options & MIPS_CPU_SUBSET_CACHES)
|
|
#endif
|
|
|
|
#ifndef cpu_dcache_line_size
|
|
#define cpu_dcache_line_size() current_cpu_data.dcache.linesz
|
|
#endif
|
|
#ifndef cpu_icache_line_size
|
|
#define cpu_icache_line_size() current_cpu_data.icache.linesz
|
|
#endif
|
|
#ifndef cpu_scache_line_size
|
|
#define cpu_scache_line_size() current_cpu_data.scache.linesz
|
|
#endif
|
|
|
|
#endif /* __ASM_CPU_FEATURES_H */
|