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| author | Ingo Molnar <mingo@elte.hu> | 2008-10-12 11:32:17 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-12 11:32:17 +0200 |
| commit | 206855c321adee56db3946ca09a5887cddb9d598 (patch) | |
| tree | 13a2729d4d0e37170552bd9ad3c6bba71ba0c55c /arch/mips/include/asm/mach-ip32/cpu-feature-overrides.h | |
| parent | e8d3f455de4f42d4bab2f6f1aeb2cf3bd18eb508 (diff) | |
| parent | cb58ffc3889f0545628f138f849e759a331b8ddc (diff) | |
Merge branch 'x86/urgent' into core/signal
Conflicts:
arch/x86/kernel/signal_64.c
Diffstat (limited to 'arch/mips/include/asm/mach-ip32/cpu-feature-overrides.h')
| -rw-r--r-- | arch/mips/include/asm/mach-ip32/cpu-feature-overrides.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/arch/mips/include/asm/mach-ip32/cpu-feature-overrides.h b/arch/mips/include/asm/mach-ip32/cpu-feature-overrides.h new file mode 100644 index 000000000000..6782fccebe8d --- /dev/null +++ b/arch/mips/include/asm/mach-ip32/cpu-feature-overrides.h @@ -0,0 +1,50 @@ +/* + * 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) 2005 Ilya A. Volynets-Evenbakh + * Copyright (C) 2005, 07 Ralf Baechle (ralf@linux-mips.org) + */ +#ifndef __ASM_MACH_IP32_CPU_FEATURE_OVERRIDES_H +#define __ASM_MACH_IP32_CPU_FEATURE_OVERRIDES_H + + +/* + * R5000 has an interesting "restriction": ll(d)/sc(d) + * instructions to XKPHYS region simply do uncached bus + * requests. This breaks all the atomic bitops functions. + * so, for 64bit IP32 kernel we just don't use ll/sc. + * This does not affect luserland. + */ +#if (defined(CONFIG_CPU_R5000) || defined(CONFIG_CPU_NEVADA)) && defined(CONFIG_64BIT) +#define cpu_has_llsc 0 +#else +#define cpu_has_llsc 1 +#endif + +/* Settings which are common for all ip32 CPUs */ +#define cpu_has_tlb 1 +#define cpu_has_4kex 1 +#define cpu_has_fpu 1 +#define cpu_has_32fpr 1 +#define cpu_has_counter 1 +#define cpu_has_mips16 0 +#define cpu_has_vce 0 +#define cpu_has_cache_cdex_s 0 +#define cpu_has_mcheck 0 +#define cpu_has_ejtag 0 +#define cpu_has_vtag_icache 0 +#define cpu_has_ic_fills_f_dc 0 +#define cpu_has_dsp 0 +#define cpu_has_4k_cache 1 +#define cpu_has_mipsmt 0 +#define cpu_has_userlocal 0 + + +#define cpu_has_mips32r1 0 +#define cpu_has_mips32r2 0 +#define cpu_has_mips64r1 0 +#define cpu_has_mips64r2 0 + +#endif /* __ASM_MACH_IP32_CPU_FEATURE_OVERRIDES_H */ |