linux_dsm_epyc7002/arch/powerpc/boot/ps3-hvcall.S
Thomas Gleixner 873e65bc09 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 167
Based on 1 normalized pattern(s):

  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 version 2 of the license this program
  is distributed in the hope that it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details you should have received a copy of the gnu general
  public license along with this program if not write to the free
  software foundation inc 59 temple place suite 330 boston ma 02111
  1307 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 83 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070034.021731668@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:39 -07:00

175 lines
2.3 KiB
ArmAsm

/* SPDX-License-Identifier: GPL-2.0-only */
/*
* PS3 bootwrapper hvcalls.
*
* Copyright (C) 2007 Sony Computer Entertainment Inc.
* Copyright 2007 Sony Corp.
*/
#include "ppc_asm.h"
.machine "ppc64"
/*
* The PS3 hypervisor uses a 64 bit "C" language calling convention.
* The routines here marshal arguments between the 32 bit wrapper
* program and the 64 bit hvcalls.
*
* wrapper lv1
* 32-bit (h,l) 64-bit
*
* 1: r3,r4 <-> r3
* 2: r5,r6 <-> r4
* 3: r7,r8 <-> r5
* 4: r9,r10 <-> r6
* 5: 8(r1),12(r1) <-> r7
* 6: 16(r1),20(r1) <-> r8
* 7: 24(r1),28(r1) <-> r9
* 8: 32(r1),36(r1) <-> r10
*
*/
.macro GLOBAL name
.section ".text"
.balign 4
.globl \name
\name:
.endm
.macro NO_SUPPORT name
GLOBAL \name
b ps3_no_support
.endm
.macro HVCALL num
li r11, \num
.long 0x44000022
extsw r3, r3
.endm
.macro SAVE_LR offset=4
mflr r0
stw r0, \offset(r1)
.endm
.macro LOAD_LR offset=4
lwz r0, \offset(r1)
mtlr r0
.endm
.macro LOAD_64_REG target,high,low
sldi r11, \high, 32
or \target, r11, \low
.endm
.macro LOAD_64_STACK target,offset
ld \target, \offset(r1)
.endm
.macro LOAD_R3
LOAD_64_REG r3,r3,r4
.endm
.macro LOAD_R4
LOAD_64_REG r4,r5,r6
.endm
.macro LOAD_R5
LOAD_64_REG r5,r7,r8
.endm
.macro LOAD_R6
LOAD_64_REG r6,r9,r10
.endm
.macro LOAD_R7
LOAD_64_STACK r7,8
.endm
.macro LOAD_R8
LOAD_64_STACK r8,16
.endm
.macro LOAD_R9
LOAD_64_STACK r9,24
.endm
.macro LOAD_R10
LOAD_64_STACK r10,32
.endm
.macro LOAD_REGS_0
stwu 1,-16(1)
stw 3, 8(1)
.endm
.macro LOAD_REGS_5
LOAD_R3
LOAD_R4
LOAD_R5
LOAD_R6
LOAD_R7
.endm
.macro LOAD_REGS_6
LOAD_REGS_5
LOAD_R8
.endm
.macro LOAD_REGS_8
LOAD_REGS_6
LOAD_R9
LOAD_R10
.endm
.macro STORE_REGS_0_1
lwz r11, 8(r1)
std r4, 0(r11)
mr r4, r3
li r3, 0
addi r1,r1,16
.endm
.macro STORE_REGS_5_2
lwz r11, 16(r1)
std r4, 0(r11)
lwz r11, 20(r1)
std r5, 0(r11)
.endm
.macro STORE_REGS_6_1
lwz r11, 24(r1)
std r4, 0(r11)
.endm
GLOBAL lv1_get_logical_ppe_id
SAVE_LR
LOAD_REGS_0
HVCALL 69
STORE_REGS_0_1
LOAD_LR
blr
GLOBAL lv1_get_logical_partition_id
SAVE_LR
LOAD_REGS_0
HVCALL 74
STORE_REGS_0_1
LOAD_LR
blr
GLOBAL lv1_get_repository_node_value
SAVE_LR
LOAD_REGS_5
HVCALL 91
STORE_REGS_5_2
LOAD_LR
blr
GLOBAL lv1_panic
SAVE_LR
LOAD_REGS_8
HVCALL 255
LOAD_LR
blr