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, 07 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 13 /* 14 * R5000 has an interesting "restriction": ll(d)/sc(d) 15 * instructions to XKPHYS region simply do uncached bus 16 * requests. This breaks all the atomic bitops functions. 17 * so, for 64bit IP32 kernel we just don't use ll/sc. 18 * This does not affect luserland. 19 */ 20 #if (defined(CONFIG_CPU_R5000) || defined(CONFIG_CPU_NEVADA)) && defined(CONFIG_64BIT) 21 #define cpu_has_llsc 0 22 #else 23 #define cpu_has_llsc 1 24 #endif 25 26 /* Settings which are common for all ip32 CPUs */ 27 #define cpu_has_tlb 1 28 #define cpu_has_4kex 1 29 #define cpu_has_32fpr 1 30 #define cpu_has_counter 1 31 #define cpu_has_mips16 0 32 #define cpu_has_mips16e2 0 33 #define cpu_has_vce 0 34 #define cpu_has_cache_cdex_s 0 35 #define cpu_has_mcheck 0 36 #define cpu_has_ejtag 0 37 #define cpu_has_vtag_icache 0 38 #define cpu_has_ic_fills_f_dc 0 39 #define cpu_has_dsp 0 40 #define cpu_has_dsp2 0 41 #define cpu_has_4k_cache 1 42 #define cpu_has_mipsmt 0 43 #define cpu_has_userlocal 0 44 45 46 #define cpu_has_mips32r1 0 47 #define cpu_has_mips32r2 0 48 #define cpu_has_mips64r1 0 49 #define cpu_has_mips64r2 0 50 51 #endif /* __ASM_MACH_IP32_CPU_FEATURE_OVERRIDES_H */ 52