| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public |
| 3 | * License. See the file "COPYING" in the main directory of this archive |
| 4 | * for more details. |
| 5 | * |
| 6 | * Copyright (C) 2005 Ilya A. Volynets-Evenbakh |
| 7 | * Copyright (C) 2005 Ralf Baechle (ralf@linux-mips.org) |
| 8 | */ |
| 9 | #ifndef __ASM_MACH_IP32_CPU_FEATURE_OVERRIDES_H |
| 10 | #define __ASM_MACH_IP32_CPU_FEATURE_OVERRIDES_H |
| 11 | |
| 12 | #include <linux/config.h> |
| 13 | |
| 14 | /* |
| 15 | * R5000 has an interesting "restriction": ll(d)/sc(d) |
| 16 | * instructions to XKPHYS region simply do uncached bus |
| 17 | * requests. This breaks all the atomic bitops functions. |
| 18 | * so, for 64bit IP32 kernel we just don't use ll/sc. |
| 19 | * This does not affect luserland. |
| 20 | */ |
| 21 | #if defined(CONFIG_CPU_R5000) && defined(CONFIG_MIPS64) |
| 22 | #define cpu_has_llsc 0 |
| 23 | #else |
| 24 | #define cpu_has_llsc 1 |
| 25 | #endif |
| 26 | |
| 27 | /* Settings which are common for all ip32 CPUs */ |
| 28 | #define cpu_has_tlb 1 |
| 29 | #define cpu_has_4kex 1 |
| 30 | #define cpu_has_fpu 1 |
| 31 | #define cpu_has_32fpr 1 |
| 32 | #define cpu_has_counter 1 |
| 33 | #define cpu_has_mips16 0 |
| 34 | #define cpu_has_vce 0 |
| 35 | #define cpu_has_cache_cdex_s 0 |
| 36 | #define cpu_has_mcheck 0 |
| 37 | #define cpu_has_ejtag 0 |
| 38 | #define cpu_has_vtag_icache 0 |
| 39 | #define cpu_has_ic_fills_f_dc 0 |
| 40 | |
| 41 | #endif /* __ASM_MACH_IP32_CPU_FEATURE_OVERRIDES_H */ |