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Diffstat (limited to 'arch/mips/include/asm/cpu.h')
| -rw-r--r-- | arch/mips/include/asm/cpu.h | 267 |
1 files changed, 267 insertions, 0 deletions
diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h new file mode 100644 index 000000000000..229a786101d9 --- /dev/null +++ b/arch/mips/include/asm/cpu.h @@ -0,0 +1,267 @@ +/* + * 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) + * Copyright (C) 2004 Maciej W. Rozycki + */ +#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_NXP 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_R14000 0x0f00 +#define PRID_IMP_R8000 0x1000 +#define PRID_IMP_PR4450 0x1200 +#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_LOONGSON1 0x4200 +#define PRID_IMP_R5432 0x5400 +#define PRID_IMP_R5500 0x5500 +#define PRID_IMP_LOONGSON2 0x6300 + +#define PRID_IMP_UNKNOWN 0xff00 + +/* + * These are the PRID's for when 23:16 == PRID_COMP_MIPS + */ + +#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_34K 0x9500 +#define PRID_IMP_24KE 0x9600 +#define PRID_IMP_74K 0x9700 +#define PRID_IMP_1004K 0x9900 + +/* + * These are the PRID's for when 23:16 == PRID_COMP_SIBYTE + */ + +#define PRID_IMP_SB1 0x0100 +#define PRID_IMP_SB1A 0x1100 + +/* + * These are the PRID's for when 23:16 == PRID_COMP_SANDCRAFT + */ + +#define PRID_IMP_SR71000 0x0400 + +/* + * These are the PRID's for when 23:16 == PRID_COMP_BROADCOM + */ + +#define PRID_IMP_BCM4710 0x4000 +#define PRID_IMP_BCM3302 0x9000 + +/* + * Definitions for 7:0 on legacy processors + */ + +#define PRID_REV_MASK 0x00ff + +#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 +#define PRID_REV_34K_V1_0_2 0x0022 + +/* + * Older processors used to encode processor version and revision in two + * 4-bit bitfields, the 4K seems to simply count up and even newer MTI cores + * have switched to use the 8-bits as 3:3:2 bitfield with the last field as + * the patch number. *ARGH* + */ +#define PRID_REV_ENCODE_44(ver, rev) \ + ((ver) << 4 | (rev)) +#define PRID_REV_ENCODE_332(ver, rev, patch) \ + ((ver) << 5 | (rev) << 2 | (patch)) + +/* + * FPU implementation/revision register (CP1 control register 0). + * + * +---------------------------------+----------------+----------------+ + * | 0 | Implementation | Revision | + * +---------------------------------+----------------+----------------+ + * 31 16 15 8 7 0 + */ + +#define FPIR_IMP_NONE 0x0000 + +enum cpu_type_enum { + CPU_UNKNOWN, + + /* + * R2000 class processors + */ + CPU_R2000, CPU_R3000, CPU_R3000A, CPU_R3041, CPU_R3051, CPU_R3052, + CPU_R3081, CPU_R3081E, + + /* + * R6000 class processors + */ + CPU_R6000, CPU_R6000A, + + /* + * R4000 class processors + */ + CPU_R4000PC, CPU_R4000SC, CPU_R4000MC, CPU_R4200, CPU_R4300, CPU_R4310, + CPU_R4400PC, CPU_R4400SC, CPU_R4400MC, CPU_R4600, CPU_R4640, CPU_R4650, + CPU_R4700, CPU_R5000, CPU_R5000A, CPU_R5500, CPU_NEVADA, CPU_R5432, + CPU_R10000, CPU_R12000, CPU_R14000, CPU_VR41XX, CPU_VR4111, CPU_VR4121, + CPU_VR4122, CPU_VR4131, CPU_VR4133, CPU_VR4181, CPU_VR4181A, CPU_RM7000, + CPU_SR71000, CPU_RM9000, CPU_TX49XX, + + /* + * R8000 class processors + */ + CPU_R8000, + + /* + * TX3900 class processors + */ + CPU_TX3912, CPU_TX3922, CPU_TX3927, + + /* + * MIPS32 class processors + */ + CPU_4KC, CPU_4KEC, CPU_4KSC, CPU_24K, CPU_34K, CPU_1004K, CPU_74K, + CPU_AU1000, CPU_AU1100, CPU_AU1200, CPU_AU1210, CPU_AU1250, CPU_AU1500, + CPU_AU1550, CPU_PR4450, CPU_BCM3302, CPU_BCM4710, + + /* + * MIPS64 class processors + */ + CPU_5KC, CPU_20KC, CPU_25KF, CPU_SB1, CPU_SB1A, CPU_LOONGSON2, + + CPU_LAST +}; + + +/* + * ISA Level encodings + * + */ +#define MIPS_CPU_ISA_I 0x00000001 +#define MIPS_CPU_ISA_II 0x00000002 +#define MIPS_CPU_ISA_III 0x00000004 +#define MIPS_CPU_ISA_IV 0x00000008 +#define MIPS_CPU_ISA_V 0x00000010 +#define MIPS_CPU_ISA_M32R1 0x00000020 +#define MIPS_CPU_ISA_M32R2 0x00000040 +#define MIPS_CPU_ISA_M64R1 0x00000080 +#define MIPS_CPU_ISA_M64R2 0x00000100 + +#define MIPS_CPU_ISA_32BIT (MIPS_CPU_ISA_I | MIPS_CPU_ISA_II | \ + MIPS_CPU_ISA_M32R1 | MIPS_CPU_ISA_M32R2 ) +#define MIPS_CPU_ISA_64BIT (MIPS_CPU_ISA_III | MIPS_CPU_ISA_IV | \ + MIPS_CPU_ISA_V | MIPS_CPU_ISA_M64R1 | MIPS_CPU_ISA_M64R2) + +/* + * CPU Option encodings + */ +#define MIPS_CPU_TLB 0x00000001 /* CPU has TLB */ +#define MIPS_CPU_4KEX 0x00000002 /* "R4K" exception model */ +#define MIPS_CPU_3K_CACHE 0x00000004 /* R3000-style caches */ +#define MIPS_CPU_4K_CACHE 0x00000008 /* R4000-style caches */ +#define MIPS_CPU_TX39_CACHE 0x00000010 /* TX3900-style caches */ +#define MIPS_CPU_FPU 0x00000020 /* CPU has FPU */ +#define MIPS_CPU_32FPR 0x00000040 /* 32 dbl. prec. FP registers */ +#define MIPS_CPU_COUNTER 0x00000080 /* Cycle count/compare */ +#define MIPS_CPU_WATCH 0x00000100 /* watchpoint registers */ +#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_INCLUSIVE_CACHES 0x00020000 /* P-cache subset enforced */ +#define MIPS_CPU_PREFETCH 0x00040000 /* CPU has usable prefetch */ +#define MIPS_CPU_VINT 0x00080000 /* CPU supports MIPSR2 vectored interrupts */ +#define MIPS_CPU_VEIC 0x00100000 /* CPU supports MIPSR2 external interrupt controller mode */ +#define MIPS_CPU_ULRI 0x00200000 /* CPU has ULRI feature */ + +/* + * CPU ASE encodings + */ +#define MIPS_ASE_MIPS16 0x00000001 /* code compression */ +#define MIPS_ASE_MDMX 0x00000002 /* MIPS digital media extension */ +#define MIPS_ASE_MIPS3D 0x00000004 /* MIPS-3D */ +#define MIPS_ASE_SMARTMIPS 0x00000008 /* SmartMIPS */ +#define MIPS_ASE_DSP 0x00000010 /* Signal Processing ASE */ +#define MIPS_ASE_MIPSMT 0x00000020 /* CPU supports MIPS MT */ + + +#endif /* _ASM_CPU_H */ |