mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-21 11:20:41 +07:00
c5b367835c
Add support for extended physical addressing (XPA) so that
32-bit platforms can access equal to or greater than 40 bits
of physical addresses.
NOTE:
1) XPA and EVA are not the same and cannot be used
simultaneously.
2) If you configure your kernel for XPA, the PTEs
and all address sizes become 64-bit.
3) Your platform MUST have working HIGHMEM support.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/9355/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
396 lines
13 KiB
C
396 lines
13 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 (davem@davemloft.net)
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* Copyright (C) 2004, 2013 Maciej W. Rozycki
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*/
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#ifndef _ASM_CPU_H
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#define _ASM_CPU_H
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/*
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As of the MIPS32 and MIPS64 specs from MTI, the PRId register (CP0
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register 15, select 0) is defined in this (backwards compatible) 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_OPT_MASK 0xff000000
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/*
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* Assigned Company values for bits 23:16 of the PRId register.
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*/
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#define PRID_COMP_MASK 0xff0000
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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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#define PRID_COMP_NXP 0x060000
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#define PRID_COMP_TOSHIBA 0x070000
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#define PRID_COMP_LSI 0x080000
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#define PRID_COMP_LEXRA 0x0b0000
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#define PRID_COMP_NETLOGIC 0x0c0000
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#define PRID_COMP_CAVIUM 0x0d0000
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#define PRID_COMP_INGENIC 0xd00000
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/*
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* Assigned Processor ID (implementation) values for bits 15:8 of the PRId
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* register. In order to detect a certain CPU type exactly eventually
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* additional registers may need to be examined.
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*/
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#define PRID_IMP_MASK 0xff00
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/*
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* 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_R14000 0x0f00
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#define PRID_IMP_R8000 0x1000
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#define PRID_IMP_PR4450 0x1200
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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_LOONGSON_32 0x4200 /* Loongson-1 */
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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_LOONGSON_64 0x6300 /* Loongson-2/3 */
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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_MIPS
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*/
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#define PRID_IMP_QEMU_GENERIC 0x0000
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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_34K 0x9500
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#define PRID_IMP_24KE 0x9600
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#define PRID_IMP_74K 0x9700
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#define PRID_IMP_1004K 0x9900
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#define PRID_IMP_1074K 0x9a00
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#define PRID_IMP_M14KC 0x9c00
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#define PRID_IMP_M14KEC 0x9e00
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#define PRID_IMP_INTERAPTIV_UP 0xa000
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#define PRID_IMP_INTERAPTIV_MP 0xa100
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#define PRID_IMP_PROAPTIV_UP 0xa200
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#define PRID_IMP_PROAPTIV_MP 0xa300
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#define PRID_IMP_M5150 0xa700
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#define PRID_IMP_P5600 0xa800
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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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#define PRID_IMP_SB1A 0x1100
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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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* These are the PRID's for when 23:16 == PRID_COMP_BROADCOM
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*/
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#define PRID_IMP_BMIPS32_REV4 0x4000
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#define PRID_IMP_BMIPS32_REV8 0x8000
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#define PRID_IMP_BMIPS3300 0x9000
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#define PRID_IMP_BMIPS3300_ALT 0x9100
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#define PRID_IMP_BMIPS3300_BUG 0x0000
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#define PRID_IMP_BMIPS43XX 0xa000
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#define PRID_IMP_BMIPS5000 0x5a00
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#define PRID_IMP_BMIPS5200 0x5b00
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#define PRID_REV_BMIPS4380_LO 0x0040
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#define PRID_REV_BMIPS4380_HI 0x006f
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/*
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* These are the PRID's for when 23:16 == PRID_COMP_CAVIUM
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*/
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#define PRID_IMP_CAVIUM_CN38XX 0x0000
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#define PRID_IMP_CAVIUM_CN31XX 0x0100
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#define PRID_IMP_CAVIUM_CN30XX 0x0200
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#define PRID_IMP_CAVIUM_CN58XX 0x0300
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#define PRID_IMP_CAVIUM_CN56XX 0x0400
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#define PRID_IMP_CAVIUM_CN50XX 0x0600
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#define PRID_IMP_CAVIUM_CN52XX 0x0700
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#define PRID_IMP_CAVIUM_CN63XX 0x9000
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#define PRID_IMP_CAVIUM_CN68XX 0x9100
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#define PRID_IMP_CAVIUM_CN66XX 0x9200
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#define PRID_IMP_CAVIUM_CN61XX 0x9300
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#define PRID_IMP_CAVIUM_CNF71XX 0x9400
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#define PRID_IMP_CAVIUM_CN78XX 0x9500
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#define PRID_IMP_CAVIUM_CN70XX 0x9600
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/*
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* These are the PRID's for when 23:16 == PRID_COMP_INGENIC
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*/
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#define PRID_IMP_JZRISC 0x0200
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/*
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* These are the PRID's for when 23:16 == PRID_COMP_NETLOGIC
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*/
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#define PRID_IMP_NETLOGIC_XLR732 0x0000
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#define PRID_IMP_NETLOGIC_XLR716 0x0200
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#define PRID_IMP_NETLOGIC_XLR532 0x0900
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#define PRID_IMP_NETLOGIC_XLR308 0x0600
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#define PRID_IMP_NETLOGIC_XLR532C 0x0800
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#define PRID_IMP_NETLOGIC_XLR516C 0x0a00
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#define PRID_IMP_NETLOGIC_XLR508C 0x0b00
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#define PRID_IMP_NETLOGIC_XLR308C 0x0f00
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#define PRID_IMP_NETLOGIC_XLS608 0x8000
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#define PRID_IMP_NETLOGIC_XLS408 0x8800
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#define PRID_IMP_NETLOGIC_XLS404 0x8c00
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#define PRID_IMP_NETLOGIC_XLS208 0x8e00
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#define PRID_IMP_NETLOGIC_XLS204 0x8f00
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#define PRID_IMP_NETLOGIC_XLS108 0xce00
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#define PRID_IMP_NETLOGIC_XLS104 0xcf00
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#define PRID_IMP_NETLOGIC_XLS616B 0x4000
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#define PRID_IMP_NETLOGIC_XLS608B 0x4a00
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#define PRID_IMP_NETLOGIC_XLS416B 0x4400
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#define PRID_IMP_NETLOGIC_XLS412B 0x4c00
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#define PRID_IMP_NETLOGIC_XLS408B 0x4e00
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#define PRID_IMP_NETLOGIC_XLS404B 0x4f00
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#define PRID_IMP_NETLOGIC_AU13XX 0x8000
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#define PRID_IMP_NETLOGIC_XLP8XX 0x1000
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#define PRID_IMP_NETLOGIC_XLP3XX 0x1100
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#define PRID_IMP_NETLOGIC_XLP2XX 0x1200
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#define PRID_IMP_NETLOGIC_XLP9XX 0x1500
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#define PRID_IMP_NETLOGIC_XLP5XX 0x1300
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/*
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* Particular Revision values for bits 7:0 of the PRId register.
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*/
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#define PRID_REV_MASK 0x00ff
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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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#define PRID_REV_34K_V1_0_2 0x0022
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#define PRID_REV_LOONGSON1B 0x0020
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#define PRID_REV_LOONGSON2E 0x0002
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#define PRID_REV_LOONGSON2F 0x0003
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#define PRID_REV_LOONGSON3A 0x0005
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#define PRID_REV_LOONGSON3B_R1 0x0006
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#define PRID_REV_LOONGSON3B_R2 0x0007
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/*
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* Older processors used to encode processor version and revision in two
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* 4-bit bitfields, the 4K seems to simply count up and even newer MTI cores
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* have switched to use the 8-bits as 3:3:2 bitfield with the last field as
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* the patch number. *ARGH*
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*/
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#define PRID_REV_ENCODE_44(ver, rev) \
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((ver) << 4 | (rev))
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#define PRID_REV_ENCODE_332(ver, rev, patch) \
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((ver) << 5 | (rev) << 2 | (patch))
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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_MASK 0xff00
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#define FPIR_IMP_NONE 0x0000
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#if !defined(__ASSEMBLY__)
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enum cpu_type_enum {
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CPU_UNKNOWN,
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/*
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* R2000 class processors
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*/
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CPU_R2000, CPU_R3000, CPU_R3000A, CPU_R3041, CPU_R3051, CPU_R3052,
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CPU_R3081, CPU_R3081E,
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/*
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* R6000 class processors
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*/
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CPU_R6000, CPU_R6000A,
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/*
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* R4000 class processors
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*/
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CPU_R4000PC, CPU_R4000SC, CPU_R4000MC, CPU_R4200, CPU_R4300, CPU_R4310,
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CPU_R4400PC, CPU_R4400SC, CPU_R4400MC, CPU_R4600, CPU_R4640, CPU_R4650,
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CPU_R4700, CPU_R5000, CPU_R5500, CPU_NEVADA, CPU_R5432, CPU_R10000,
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CPU_R12000, CPU_R14000, CPU_VR41XX, CPU_VR4111, CPU_VR4121, CPU_VR4122,
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CPU_VR4131, CPU_VR4133, CPU_VR4181, CPU_VR4181A, CPU_RM7000,
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CPU_SR71000, CPU_TX49XX,
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/*
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* R8000 class processors
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*/
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CPU_R8000,
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/*
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* TX3900 class processors
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*/
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CPU_TX3912, CPU_TX3922, CPU_TX3927,
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/*
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* MIPS32 class processors
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*/
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CPU_4KC, CPU_4KEC, CPU_4KSC, CPU_24K, CPU_34K, CPU_1004K, CPU_74K,
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CPU_ALCHEMY, CPU_PR4450, CPU_BMIPS32, CPU_BMIPS3300, CPU_BMIPS4350,
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CPU_BMIPS4380, CPU_BMIPS5000, CPU_JZRISC, CPU_LOONGSON1, CPU_M14KC,
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CPU_M14KEC, CPU_INTERAPTIV, CPU_P5600, CPU_PROAPTIV, CPU_1074K, CPU_M5150,
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/*
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* MIPS64 class processors
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*/
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CPU_5KC, CPU_5KE, CPU_20KC, CPU_25KF, CPU_SB1, CPU_SB1A, CPU_LOONGSON2,
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CPU_LOONGSON3, CPU_CAVIUM_OCTEON, CPU_CAVIUM_OCTEON_PLUS,
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CPU_CAVIUM_OCTEON2, CPU_CAVIUM_OCTEON3, CPU_XLR, CPU_XLP,
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CPU_QEMU_GENERIC,
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CPU_LAST
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};
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#endif /* !__ASSEMBLY */
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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_II 0x00000001
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#define MIPS_CPU_ISA_III 0x00000002
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#define MIPS_CPU_ISA_IV 0x00000004
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#define MIPS_CPU_ISA_V 0x00000008
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#define MIPS_CPU_ISA_M32R1 0x00000010
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#define MIPS_CPU_ISA_M32R2 0x00000020
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#define MIPS_CPU_ISA_M64R1 0x00000040
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#define MIPS_CPU_ISA_M64R2 0x00000080
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#define MIPS_CPU_ISA_M32R6 0x00000100
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#define MIPS_CPU_ISA_M64R6 0x00000200
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#define MIPS_CPU_ISA_32BIT (MIPS_CPU_ISA_II | MIPS_CPU_ISA_M32R1 | \
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MIPS_CPU_ISA_M32R2 | MIPS_CPU_ISA_M32R6)
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#define MIPS_CPU_ISA_64BIT (MIPS_CPU_ISA_III | MIPS_CPU_ISA_IV | \
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MIPS_CPU_ISA_V | MIPS_CPU_ISA_M64R1 | MIPS_CPU_ISA_M64R2 | \
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MIPS_CPU_ISA_M64R6)
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/*
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* CPU Option encodings
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*/
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#define MIPS_CPU_TLB 0x00000001ull /* CPU has TLB */
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#define MIPS_CPU_4KEX 0x00000002ull /* "R4K" exception model */
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#define MIPS_CPU_3K_CACHE 0x00000004ull /* R3000-style caches */
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#define MIPS_CPU_4K_CACHE 0x00000008ull /* R4000-style caches */
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#define MIPS_CPU_TX39_CACHE 0x00000010ull /* TX3900-style caches */
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#define MIPS_CPU_FPU 0x00000020ull /* CPU has FPU */
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#define MIPS_CPU_32FPR 0x00000040ull /* 32 dbl. prec. FP registers */
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#define MIPS_CPU_COUNTER 0x00000080ull /* Cycle count/compare */
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#define MIPS_CPU_WATCH 0x00000100ull /* watchpoint registers */
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#define MIPS_CPU_DIVEC 0x00000200ull /* dedicated interrupt vector */
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#define MIPS_CPU_VCE 0x00000400ull /* virt. coherence conflict possible */
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#define MIPS_CPU_CACHE_CDEX_P 0x00000800ull /* Create_Dirty_Exclusive CACHE op */
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#define MIPS_CPU_CACHE_CDEX_S 0x00001000ull /* ... same for seconary cache ... */
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#define MIPS_CPU_MCHECK 0x00002000ull /* Machine check exception */
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#define MIPS_CPU_EJTAG 0x00004000ull /* EJTAG exception */
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#define MIPS_CPU_NOFPUEX 0x00008000ull /* no FPU exception */
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#define MIPS_CPU_LLSC 0x00010000ull /* CPU has ll/sc instructions */
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#define MIPS_CPU_INCLUSIVE_CACHES 0x00020000ull /* P-cache subset enforced */
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#define MIPS_CPU_PREFETCH 0x00040000ull /* CPU has usable prefetch */
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#define MIPS_CPU_VINT 0x00080000ull /* CPU supports MIPSR2 vectored interrupts */
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#define MIPS_CPU_VEIC 0x00100000ull /* CPU supports MIPSR2 external interrupt controller mode */
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#define MIPS_CPU_ULRI 0x00200000ull /* CPU has ULRI feature */
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#define MIPS_CPU_PCI 0x00400000ull /* CPU has Perf Ctr Int indicator */
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#define MIPS_CPU_RIXI 0x00800000ull /* CPU has TLB Read/eXec Inhibit */
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#define MIPS_CPU_MICROMIPS 0x01000000ull /* CPU has microMIPS capability */
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#define MIPS_CPU_TLBINV 0x02000000ull /* CPU supports TLBINV/F */
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#define MIPS_CPU_SEGMENTS 0x04000000ull /* CPU supports Segmentation Control registers */
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#define MIPS_CPU_EVA 0x80000000ull /* CPU supports Enhanced Virtual Addressing */
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#define MIPS_CPU_HTW 0x100000000ull /* CPU support Hardware Page Table Walker */
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#define MIPS_CPU_RIXIEX 0x200000000ull /* CPU has unique exception codes for {Read, Execute}-Inhibit exceptions */
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#define MIPS_CPU_MAAR 0x400000000ull /* MAAR(I) registers are present */
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#define MIPS_CPU_FRE 0x800000000ull /* FRE & UFE bits implemented */
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#define MIPS_CPU_RW_LLB 0x1000000000ull /* LLADDR/LLB writes are allowed */
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#define MIPS_CPU_XPA 0x2000000000ull /* CPU supports Extended Physical Addressing */
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/*
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* CPU ASE encodings
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*/
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#define MIPS_ASE_MIPS16 0x00000001 /* code compression */
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#define MIPS_ASE_MDMX 0x00000002 /* MIPS digital media extension */
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#define MIPS_ASE_MIPS3D 0x00000004 /* MIPS-3D */
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#define MIPS_ASE_SMARTMIPS 0x00000008 /* SmartMIPS */
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#define MIPS_ASE_DSP 0x00000010 /* Signal Processing ASE */
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#define MIPS_ASE_MIPSMT 0x00000020 /* CPU supports MIPS MT */
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#define MIPS_ASE_DSP2P 0x00000040 /* Signal Processing ASE Rev 2 */
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#define MIPS_ASE_VZ 0x00000080 /* Virtualization ASE */
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#define MIPS_ASE_MSA 0x00000100 /* MIPS SIMD Architecture */
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#endif /* _ASM_CPU_H */
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