/*
* 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 64 bit 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_32fpr 1
#define cpu_has_counter 1
#define cpu_has_mips16 0
#define cpu_has_mips16e2 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_dsp2 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 */
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