mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-21 12:49:08 +07:00
864b9e6fd7
This patch implements the lwarx/ldarx hint bit for bit locks. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
115 lines
4.3 KiB
C
115 lines
4.3 KiB
C
/*
|
|
* Copyright 2009 Freescale Semicondutor, Inc.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*
|
|
* provides masks and opcode images for use by code generation, emulation
|
|
* and for instructions that older assemblers might not know about
|
|
*/
|
|
#ifndef _ASM_POWERPC_PPC_OPCODE_H
|
|
#define _ASM_POWERPC_PPC_OPCODE_H
|
|
|
|
#include <linux/stringify.h>
|
|
#include <asm/asm-compat.h>
|
|
|
|
/* sorted alphabetically */
|
|
#define PPC_INST_DCBA 0x7c0005ec
|
|
#define PPC_INST_DCBA_MASK 0xfc0007fe
|
|
#define PPC_INST_DCBAL 0x7c2005ec
|
|
#define PPC_INST_DCBZL 0x7c2007ec
|
|
#define PPC_INST_ISEL 0x7c00001e
|
|
#define PPC_INST_ISEL_MASK 0xfc00003e
|
|
#define PPC_INST_LDARX 0x7c0000a8
|
|
#define PPC_INST_LSWI 0x7c0004aa
|
|
#define PPC_INST_LSWX 0x7c00042a
|
|
#define PPC_INST_LWARX 0x7c000029
|
|
#define PPC_INST_LWSYNC 0x7c2004ac
|
|
#define PPC_INST_LXVD2X 0x7c000698
|
|
#define PPC_INST_MCRXR 0x7c000400
|
|
#define PPC_INST_MCRXR_MASK 0xfc0007fe
|
|
#define PPC_INST_MFSPR_PVR 0x7c1f42a6
|
|
#define PPC_INST_MFSPR_PVR_MASK 0xfc1fffff
|
|
#define PPC_INST_MSGSND 0x7c00019c
|
|
#define PPC_INST_NOP 0x60000000
|
|
#define PPC_INST_POPCNTB 0x7c0000f4
|
|
#define PPC_INST_POPCNTB_MASK 0xfc0007fe
|
|
#define PPC_INST_RFCI 0x4c000066
|
|
#define PPC_INST_RFDI 0x4c00004e
|
|
#define PPC_INST_RFMCI 0x4c00004c
|
|
|
|
#define PPC_INST_STRING 0x7c00042a
|
|
#define PPC_INST_STRING_MASK 0xfc0007fe
|
|
#define PPC_INST_STRING_GEN_MASK 0xfc00067e
|
|
|
|
#define PPC_INST_STSWI 0x7c0005aa
|
|
#define PPC_INST_STSWX 0x7c00052a
|
|
#define PPC_INST_STXVD2X 0x7c000798
|
|
#define PPC_INST_TLBIE 0x7c000264
|
|
#define PPC_INST_TLBILX 0x7c000024
|
|
#define PPC_INST_WAIT 0x7c00007c
|
|
#define PPC_INST_TLBIVAX 0x7c000624
|
|
#define PPC_INST_TLBSRX_DOT 0x7c0006a5
|
|
|
|
/* macros to insert fields into opcodes */
|
|
#define __PPC_RA(a) (((a) & 0x1f) << 16)
|
|
#define __PPC_RB(b) (((b) & 0x1f) << 11)
|
|
#define __PPC_RS(s) (((s) & 0x1f) << 21)
|
|
#define __PPC_RT(s) __PPC_RS(s)
|
|
#define __PPC_XS(s) ((((s) & 0x1f) << 21) | (((s) & 0x20) >> 5))
|
|
#define __PPC_T_TLB(t) (((t) & 0x3) << 21)
|
|
#define __PPC_WC(w) (((w) & 0x3) << 21)
|
|
/*
|
|
* Only use the larx hint bit on 64bit CPUs. Once we verify it doesn't have
|
|
* any side effects on all 32bit processors, we can do this all the time.
|
|
*/
|
|
#ifdef CONFIG_PPC64
|
|
#define __PPC_EH(eh) (((eh) & 0x1) << 0)
|
|
#else
|
|
#define __PPC_EH(eh) 0
|
|
#endif
|
|
|
|
/* Deal with instructions that older assemblers aren't aware of */
|
|
#define PPC_DCBAL(a, b) stringify_in_c(.long PPC_INST_DCBAL | \
|
|
__PPC_RA(a) | __PPC_RB(b))
|
|
#define PPC_DCBZL(a, b) stringify_in_c(.long PPC_INST_DCBZL | \
|
|
__PPC_RA(a) | __PPC_RB(b))
|
|
#define PPC_LDARX(t, a, b, eh) stringify_in_c(.long PPC_INST_LDARX | \
|
|
__PPC_RT(t) | __PPC_RA(a) | \
|
|
__PPC_RB(b) | __PPC_EH(eh))
|
|
#define PPC_LWARX(t, a, b, eh) stringify_in_c(.long PPC_INST_LWARX | \
|
|
__PPC_RT(t) | __PPC_RA(a) | \
|
|
__PPC_RB(b) | __PPC_EH(eh))
|
|
#define PPC_MSGSND(b) stringify_in_c(.long PPC_INST_MSGSND | \
|
|
__PPC_RB(b))
|
|
#define PPC_RFCI stringify_in_c(.long PPC_INST_RFCI)
|
|
#define PPC_RFDI stringify_in_c(.long PPC_INST_RFDI)
|
|
#define PPC_RFMCI stringify_in_c(.long PPC_INST_RFMCI)
|
|
#define PPC_TLBILX(t, a, b) stringify_in_c(.long PPC_INST_TLBILX | \
|
|
__PPC_T_TLB(t) | __PPC_RA(a) | __PPC_RB(b))
|
|
#define PPC_TLBILX_ALL(a, b) PPC_TLBILX(0, a, b)
|
|
#define PPC_TLBILX_PID(a, b) PPC_TLBILX(1, a, b)
|
|
#define PPC_TLBILX_VA(a, b) PPC_TLBILX(3, a, b)
|
|
#define PPC_WAIT(w) stringify_in_c(.long PPC_INST_WAIT | \
|
|
__PPC_WC(w))
|
|
#define PPC_TLBIE(lp,a) stringify_in_c(.long PPC_INST_TLBIE | \
|
|
__PPC_RB(a) | __PPC_RS(lp))
|
|
#define PPC_TLBSRX_DOT(a,b) stringify_in_c(.long PPC_INST_TLBSRX_DOT | \
|
|
__PPC_RA(a) | __PPC_RB(b))
|
|
#define PPC_TLBIVAX(a,b) stringify_in_c(.long PPC_INST_TLBIVAX | \
|
|
__PPC_RA(a) | __PPC_RB(b))
|
|
|
|
/*
|
|
* Define what the VSX XX1 form instructions will look like, then add
|
|
* the 128 bit load store instructions based on that.
|
|
*/
|
|
#define VSX_XX1(s, a, b) (__PPC_XS(s) | __PPC_RA(a) | __PPC_RB(b))
|
|
#define STXVD2X(s, a, b) stringify_in_c(.long PPC_INST_STXVD2X | \
|
|
VSX_XX1((s), (a), (b)))
|
|
#define LXVD2X(s, a, b) stringify_in_c(.long PPC_INST_LXVD2X | \
|
|
VSX_XX1((s), (a), (b)))
|
|
|
|
#endif /* _ASM_POWERPC_PPC_OPCODE_H */
|