mirror of
https://github.com/torvalds/linux
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1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
222 lines
6.6 KiB
C
222 lines
6.6 KiB
C
/*
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* cpu.h: Values of the PRId register used to match up
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* various MIPS cpu types.
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*
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* Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
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*/
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#ifndef _ASM_CPU_H
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#define _ASM_CPU_H
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/* Assigned Company values for bits 23:16 of the PRId Register
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(CP0 register 15, select 0). As of the MIPS32 and MIPS64 specs from
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MTI, the PRId register is defined in this (backwards compatible)
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way:
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+----------------+----------------+----------------+----------------+
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| Company Options| Company ID | Processor ID | Revision |
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+----------------+----------------+----------------+----------------+
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31 24 23 16 15 8 7
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I don't have docs for all the previous processors, but my impression is
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that bits 16-23 have been 0 for all MIPS processors before the MIPS32/64
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spec.
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*/
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#define PRID_COMP_LEGACY 0x000000
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#define PRID_COMP_MIPS 0x010000
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#define PRID_COMP_BROADCOM 0x020000
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#define PRID_COMP_ALCHEMY 0x030000
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#define PRID_COMP_SIBYTE 0x040000
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#define PRID_COMP_SANDCRAFT 0x050000
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/*
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* Assigned values for the product ID register. In order to detect a
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* certain CPU type exactly eventually additional registers may need to
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* be examined. These are valid when 23:16 == PRID_COMP_LEGACY
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*/
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#define PRID_IMP_R2000 0x0100
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#define PRID_IMP_AU1_REV1 0x0100
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#define PRID_IMP_AU1_REV2 0x0200
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#define PRID_IMP_R3000 0x0200 /* Same as R2000A */
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#define PRID_IMP_R6000 0x0300 /* Same as R3000A */
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#define PRID_IMP_R4000 0x0400
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#define PRID_IMP_R6000A 0x0600
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#define PRID_IMP_R10000 0x0900
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#define PRID_IMP_R4300 0x0b00
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#define PRID_IMP_VR41XX 0x0c00
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#define PRID_IMP_R12000 0x0e00
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#define PRID_IMP_R8000 0x1000
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#define PRID_IMP_R4600 0x2000
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#define PRID_IMP_R4700 0x2100
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#define PRID_IMP_TX39 0x2200
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#define PRID_IMP_R4640 0x2200
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#define PRID_IMP_R4650 0x2200 /* Same as R4640 */
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#define PRID_IMP_R5000 0x2300
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#define PRID_IMP_TX49 0x2d00
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#define PRID_IMP_SONIC 0x2400
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#define PRID_IMP_MAGIC 0x2500
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#define PRID_IMP_RM7000 0x2700
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#define PRID_IMP_NEVADA 0x2800 /* RM5260 ??? */
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#define PRID_IMP_RM9000 0x3400
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#define PRID_IMP_R5432 0x5400
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#define PRID_IMP_R5500 0x5500
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#define PRID_IMP_4KC 0x8000
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#define PRID_IMP_5KC 0x8100
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#define PRID_IMP_20KC 0x8200
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#define PRID_IMP_4KEC 0x8400
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#define PRID_IMP_4KSC 0x8600
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#define PRID_IMP_25KF 0x8800
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#define PRID_IMP_5KE 0x8900
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#define PRID_IMP_4KECR2 0x9000
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#define PRID_IMP_4KEMPR2 0x9100
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#define PRID_IMP_4KSD 0x9200
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#define PRID_IMP_24K 0x9300
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#define PRID_IMP_UNKNOWN 0xff00
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/*
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* These are the PRID's for when 23:16 == PRID_COMP_SIBYTE
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*/
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#define PRID_IMP_SB1 0x0100
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/*
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* These are the PRID's for when 23:16 == PRID_COMP_SANDCRAFT
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*/
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#define PRID_IMP_SR71000 0x0400
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/*
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* Definitions for 7:0 on legacy processors
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*/
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#define PRID_REV_TX4927 0x0022
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#define PRID_REV_TX4937 0x0030
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#define PRID_REV_R4400 0x0040
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#define PRID_REV_R3000A 0x0030
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#define PRID_REV_R3000 0x0020
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#define PRID_REV_R2000A 0x0010
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#define PRID_REV_TX3912 0x0010
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#define PRID_REV_TX3922 0x0030
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#define PRID_REV_TX3927 0x0040
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#define PRID_REV_VR4111 0x0050
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#define PRID_REV_VR4181 0x0050 /* Same as VR4111 */
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#define PRID_REV_VR4121 0x0060
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#define PRID_REV_VR4122 0x0070
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#define PRID_REV_VR4181A 0x0070 /* Same as VR4122 */
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#define PRID_REV_VR4130 0x0080
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/*
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* FPU implementation/revision register (CP1 control register 0).
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*
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* +---------------------------------+----------------+----------------+
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* | 0 | Implementation | Revision |
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* +---------------------------------+----------------+----------------+
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* 31 16 15 8 7 0
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*/
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#define FPIR_IMP_NONE 0x0000
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#define CPU_UNKNOWN 0
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#define CPU_R2000 1
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#define CPU_R3000 2
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#define CPU_R3000A 3
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#define CPU_R3041 4
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#define CPU_R3051 5
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#define CPU_R3052 6
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#define CPU_R3081 7
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#define CPU_R3081E 8
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#define CPU_R4000PC 9
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#define CPU_R4000SC 10
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#define CPU_R4000MC 11
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#define CPU_R4200 12
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#define CPU_R4400PC 13
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#define CPU_R4400SC 14
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#define CPU_R4400MC 15
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#define CPU_R4600 16
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#define CPU_R6000 17
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#define CPU_R6000A 18
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#define CPU_R8000 19
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#define CPU_R10000 20
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#define CPU_R12000 21
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#define CPU_R4300 22
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#define CPU_R4650 23
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#define CPU_R4700 24
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#define CPU_R5000 25
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#define CPU_R5000A 26
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#define CPU_R4640 27
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#define CPU_NEVADA 28
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#define CPU_RM7000 29
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#define CPU_R5432 30
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#define CPU_4KC 31
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#define CPU_5KC 32
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#define CPU_R4310 33
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#define CPU_SB1 34
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#define CPU_TX3912 35
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#define CPU_TX3922 36
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#define CPU_TX3927 37
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#define CPU_AU1000 38
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#define CPU_4KEC 39
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#define CPU_4KSC 40
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#define CPU_VR41XX 41
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#define CPU_R5500 42
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#define CPU_TX49XX 43
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#define CPU_AU1500 44
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#define CPU_20KC 45
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#define CPU_VR4111 46
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#define CPU_VR4121 47
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#define CPU_VR4122 48
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#define CPU_VR4131 49
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#define CPU_VR4181 50
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#define CPU_VR4181A 51
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#define CPU_AU1100 52
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#define CPU_SR71000 53
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#define CPU_RM9000 54
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#define CPU_25KF 55
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#define CPU_VR4133 56
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#define CPU_AU1550 57
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#define CPU_24K 58
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#define CPU_LAST 58
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/*
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* ISA Level encodings
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*
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*/
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#define MIPS_CPU_ISA_I 0x00000001
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#define MIPS_CPU_ISA_II 0x00000002
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#define MIPS_CPU_ISA_III 0x00008003
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#define MIPS_CPU_ISA_IV 0x00008004
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#define MIPS_CPU_ISA_V 0x00008005
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#define MIPS_CPU_ISA_M32 0x00000020
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#define MIPS_CPU_ISA_M64 0x00008040
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/*
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* Bit 15 encodes if an ISA level supports 64-bit operations.
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*/
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#define MIPS_CPU_ISA_64BIT 0x00008000
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/*
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* CPU Option encodings
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*/
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#define MIPS_CPU_TLB 0x00000001 /* CPU has TLB */
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/* Leave a spare bit for variant MMU types... */
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#define MIPS_CPU_4KEX 0x00000004 /* "R4K" exception model */
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#define MIPS_CPU_4KTLB 0x00000008 /* "R4K" TLB handler */
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#define MIPS_CPU_FPU 0x00000010 /* CPU has FPU */
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#define MIPS_CPU_32FPR 0x00000020 /* 32 dbl. prec. FP registers */
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#define MIPS_CPU_COUNTER 0x00000040 /* Cycle count/compare */
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#define MIPS_CPU_WATCH 0x00000080 /* watchpoint registers */
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#define MIPS_CPU_MIPS16 0x00000100 /* code compression */
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#define MIPS_CPU_DIVEC 0x00000200 /* dedicated interrupt vector */
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#define MIPS_CPU_VCE 0x00000400 /* virt. coherence conflict possible */
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#define MIPS_CPU_CACHE_CDEX_P 0x00000800 /* Create_Dirty_Exclusive CACHE op */
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#define MIPS_CPU_CACHE_CDEX_S 0x00001000 /* ... same for seconary cache ... */
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#define MIPS_CPU_MCHECK 0x00002000 /* Machine check exception */
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#define MIPS_CPU_EJTAG 0x00004000 /* EJTAG exception */
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#define MIPS_CPU_NOFPUEX 0x00008000 /* no FPU exception */
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#define MIPS_CPU_LLSC 0x00010000 /* CPU has ll/sc instructions */
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#define MIPS_CPU_SUBSET_CACHES 0x00020000 /* P-cache subset enforced */
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#define MIPS_CPU_PREFETCH 0x00040000 /* CPU has usable prefetch */
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#endif /* _ASM_CPU_H */
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