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Quelle  ps3-hvcall.S   Sprache: unbekannt

 
/* 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 38(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

Messung V0.5 in Prozent
C=95 H=90 G=92

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