| /* |
| * 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 Ralf Baechle (ralf@linux-mips.org) |
| */ |
| #ifndef __ASM_MACH_IP32_CPU_FEATURE_OVERRIDES_H |
| #define __ASM_MACH_IP32_CPU_FEATURE_OVERRIDES_H |
| |
| #include <linux/config.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_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 |
| |
| #endif /* __ASM_MACH_IP32_CPU_FEATURE_OVERRIDES_H */ |
