/* * cpu.h: Values of the PRId register used to match up * various MIPS cpu types. * * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com) */ #ifndef _ASM_CPU_H #define _ASM_CPU_H /* Assigned Company values for bits 23:16 of the PRId Register (CP0 register 15, select 0). As of the MIPS32 and MIPS64 specs from MTI, the PRId register is defined in this (backwards compatible) way: +----------------+----------------+----------------+----------------+ | Company Options| Company ID | Processor ID | Revision | +----------------+----------------+----------------+----------------+ 31 24 23 16 15 8 7 I don't have docs for all the previous processors, but my impression is that bits 16-23 have been 0 for all MIPS processors before the MIPS32/64 spec. */ #define PRID_COMP_LEGACY 0x000000 #define PRID_COMP_MIPS 0x010000 #define PRID_COMP_BROADCOM 0x020000 #define PRID_COMP_ALCHEMY 0x030000 #define PRID_COMP_SIBYTE 0x040000 #define PRID_COMP_SANDCRAFT 0x050000 #define PRID_COMP_PHILIPS 0x060000 #define PRID_COMP_TOSHIBA 0x070000 #define PRID_COMP_LSI 0x080000 #define PRID_COMP_LEXRA 0x0b0000 /* * Assigned values for the product ID register. In order to detect a * certain CPU type exactly eventually additional registers may need to * be examined. These are valid when 23:16 == PRID_COMP_LEGACY */ #define PRID_IMP_R2000 0x0100 #define PRID_IMP_AU1_REV1 0x0100 #define PRID_IMP_AU1_REV2 0x0200 #define PRID_IMP_R3000 0x0200 /* Same as R2000A */ #define PRID_IMP_R6000 0x0300 /* Same as R3000A */ #define PRID_IMP_R4000 0x0400 #define PRID_IMP_R6000A 0x0600 #define PRID_IMP_R10000 0x0900 #define PRID_IMP_R4300 0x0b00 #define PRID_IMP_VR41XX 0x0c00 #define PRID_IMP_R12000 0x0e00 #define PRID_IMP_R8000 0x1000 #define PRID_IMP_R4600 0x2000 #define PRID_IMP_R4700 0x2100 #define PRID_IMP_TX39 0x2200 #define PRID_IMP_R4640 0x2200 #define PRID_IMP_R4650 0x2200 /* Same as R4640 */ #define PRID_IMP_R5000 0x2300 #define PRID_IMP_TX49 0x2d00 #define PRID_IMP_SONIC 0x2400 #define PRID_IMP_MAGIC 0x2500 #define PRID_IMP_RM7000 0x2700 #define PRID_IMP_NEVADA 0x2800 /* RM5260 ??? */ #define PRID_IMP_RM9000 0x3400 #define PRID_IMP_R5432 0x5400 #define PRID_IMP_R5500 0x5500 #define PRID_IMP_4KC 0x8000 #define PRID_IMP_5KC 0x8100 #define PRID_IMP_20KC 0x8200 #define PRID_IMP_4KEC 0x8400 #define PRID_IMP_4KSC 0x8600 #define PRID_IMP_25KF 0x8800 #define PRID_IMP_5KE 0x8900 #define PRID_IMP_4KECR2 0x9000 #define PRID_IMP_4KEMPR2 0x9100 #define PRID_IMP_4KSD 0x9200 #define PRID_IMP_24K 0x9300 #define PRID_IMP_UNKNOWN 0xff00 /* * These are the PRID's for when 23:16 == PRID_COMP_SIBYTE */ #define PRID_IMP_SB1 0x0100 /* * These are the PRID's for when 23:16 == PRID_COMP_SANDCRAFT */ #define PRID_IMP_SR71000 0x0400 /* * Definitions for 7:0 on legacy processors */ #define PRID_REV_TX4927 0x0022 #define PRID_REV_TX4937 0x0030 #define PRID_REV_R4400 0x0040 #define PRID_REV_R3000A 0x0030 #define PRID_REV_R3000 0x0020 #define PRID_REV_R2000A 0x0010 #define PRID_REV_TX3912 0x0010 #define PRID_REV_TX3922 0x0030 #define PRID_REV_TX3927 0x0040 #define PRID_REV_VR4111 0x0050 #define PRID_REV_VR4181 0x0050 /* Same as VR4111 */ #define PRID_REV_VR4121 0x0060 #define PRID_REV_VR4122 0x0070 #define PRID_REV_VR4181A 0x0070 /* Same as VR4122 */ #define PRID_REV_VR4130 0x0080 /* * FPU implementation/revision register (CP1 control register 0). * * +---------------------------------+----------------+----------------+ * | 0 | Implementation | Revision | * +---------------------------------+----------------+----------------+ * 31 16 15 8 7 0 */ #define FPIR_IMP_NONE 0x0000 #define CPU_UNKNOWN 0 #define CPU_R2000 1 #define CPU_R3000 2 #define CPU_R3000A 3 #define CPU_R3041 4 #define CPU_R3051 5 #define CPU_R3052 6 #define CPU_R3081 7 #define CPU_R3081E 8 #define CPU_R4000PC 9 #define CPU_R4000SC 10 #define CPU_R4000MC 11 #define CPU_R4200 12 #define CPU_R4400PC 13 #define CPU_R4400SC 14 #define CPU_R4400MC 15 #define CPU_R4600 16 #define CPU_R6000 17 #define CPU_R6000A 18 #define CPU_R8000 19 #define CPU_R10000 20 #define CPU_R12000 21 #define CPU_R4300 22 #define CPU_R4650 23 #define CPU_R4700 24 #define CPU_R5000 25 #define CPU_R5000A 26 #define CPU_R4640 27 #define CPU_NEVADA 28 #define CPU_RM7000 29 #define CPU_R5432 30 #define CPU_4KC 31 #define CPU_5KC 32 #define CPU_R4310 33 #define CPU_SB1 34 #define CPU_TX3912 35 #define CPU_TX3922 36 #define CPU_TX3927 37 #define CPU_AU1000 38 #define CPU_4KEC 39 #define CPU_4KSC 40 #define CPU_VR41XX 41 #define CPU_R5500 42 #define CPU_TX49XX 43 #define CPU_AU1500 44 #define CPU_20KC 45 #define CPU_VR4111 46 #define CPU_VR4121 47 #define CPU_VR4122 48 #define CPU_VR4131 49 #define CPU_VR4181 50 #define CPU_VR4181A 51 #define CPU_AU1100 52 #define CPU_SR71000 53 #define CPU_RM9000 54 #define CPU_25KF 55 #define CPU_VR4133 56 #define CPU_AU1550 57 #define CPU_24K 58 #define CPU_LAST 58 /* * ISA Level encodings * */ #define MIPS_CPU_ISA_I 0x00000001 #define MIPS_CPU_ISA_II 0x00000002 #define MIPS_CPU_ISA_III 0x00008003 #define MIPS_CPU_ISA_IV 0x00008004 #define MIPS_CPU_ISA_V 0x00008005 #define MIPS_CPU_ISA_M32 0x00000020 #define MIPS_CPU_ISA_M64 0x00008040 /* * Bit 15 encodes if an ISA level supports 64-bit operations. */ #define MIPS_CPU_ISA_64BIT 0x00008000 /* * CPU Option encodings */ #define MIPS_CPU_TLB 0x00000001 /* CPU has TLB */ /* Leave a spare bit for variant MMU types... */ #define MIPS_CPU_4KEX 0x00000004 /* "R4K" exception model */ #define MIPS_CPU_4KTLB 0x00000008 /* "R4K" TLB handler */ #define MIPS_CPU_FPU 0x00000010 /* CPU has FPU */ #define MIPS_CPU_32FPR 0x00000020 /* 32 dbl. prec. FP registers */ #define MIPS_CPU_COUNTER 0x00000040 /* Cycle count/compare */ #define MIPS_CPU_WATCH 0x00000080 /* watchpoint registers */ #define MIPS_CPU_MIPS16 0x00000100 /* code compression */ #define MIPS_CPU_DIVEC 0x00000200 /* dedicated interrupt vector */ #define MIPS_CPU_VCE 0x00000400 /* virt. coherence conflict possible */ #define MIPS_CPU_CACHE_CDEX_P 0x00000800 /* Create_Dirty_Exclusive CACHE op */ #define MIPS_CPU_CACHE_CDEX_S 0x00001000 /* ... same for seconary cache ... */ #define MIPS_CPU_MCHECK 0x00002000 /* Machine check exception */ #define MIPS_CPU_EJTAG 0x00004000 /* EJTAG exception */ #define MIPS_CPU_NOFPUEX 0x00008000 /* no FPU exception */ #define MIPS_CPU_LLSC 0x00010000 /* CPU has ll/sc instructions */ #define MIPS_CPU_SUBSET_CACHES 0x00020000 /* P-cache subset enforced */ #define MIPS_CPU_PREFETCH 0x00040000 /* CPU has usable prefetch */ #endif /* _ASM_CPU_H */