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1da177e4 LT |
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 | */ | |
875d43e7 | 21 | #if defined(CONFIG_CPU_R5000) && defined(CONFIG_64BIT) |
1da177e4 LT |
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 | |
e50c0a8f | 40 | #define cpu_has_dsp 0 |
1da177e4 LT |
41 | |
42 | #endif /* __ASM_MACH_IP32_CPU_FEATURE_OVERRIDES_H */ |