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linux-next/arch/powerpc/boot/ps3-hvcall.S

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[POWERPC] PS3: Bootwrapper support. Add support to build the PS3 flash rom image and remove some unneeded lmb calls. The PS3's lv1 loader supports loading gzipped binary images from flash rom to addr zero. The loader enters the image at addr 0x100. In this implementation a bootwrapper overlay is use to arrange for the kernel to be loaded to addr zero and to have a suitable bootwrapper entry at 0x100. To construct the rom image, 0x100 bytes from offset 0x100 in the kernel is copied to the bootwrapper symbol __system_reset_kernel. The 0x100 bytes at the bootwrapper symbol __system_reset_overlay is then copied to offset 0x100. At runtime the bootwrapper program copies the 0x100 bytes at __system_reset_kernel to addr 0x100. zImage.ps3 is a wrapped image that contains a flat device tree, an lv1 compatible entry point, and an optional initrd. otheros.bld is the gzip compresed rom image built from zImage.ps3. otheros.bld is suitable for programming into the PS3 boot flash memory. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-04 07:07:18 +08:00
/*
* PS3 bootwrapper hvcalls.
*
* Copyright (C) 2007 Sony Computer Entertainment Inc.
* Copyright 2007 Sony Corp.
*
* 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
*/
#include "ppc_asm.h"
PS3: Fix build with 32-bit toolchains The PS3 bootwrapper files use instructions only available on 64-bit CPUs. Add the code generation directive '.machine "ppc64"' for toolchains configured for 32-bit CPUs. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-21 19:37:49 +08:00
.machine "ppc64"
[POWERPC] PS3: Bootwrapper support. Add support to build the PS3 flash rom image and remove some unneeded lmb calls. The PS3's lv1 loader supports loading gzipped binary images from flash rom to addr zero. The loader enters the image at addr 0x100. In this implementation a bootwrapper overlay is use to arrange for the kernel to be loaded to addr zero and to have a suitable bootwrapper entry at 0x100. To construct the rom image, 0x100 bytes from offset 0x100 in the kernel is copied to the bootwrapper symbol __system_reset_kernel. The 0x100 bytes at the bootwrapper symbol __system_reset_overlay is then copied to offset 0x100. At runtime the bootwrapper program copies the 0x100 bytes at __system_reset_kernel to addr 0x100. zImage.ps3 is a wrapped image that contains a flat device tree, an lv1 compatible entry point, and an optional initrd. otheros.bld is the gzip compresed rom image built from zImage.ps3. otheros.bld is suitable for programming into the PS3 boot flash memory. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-04 07:07:18 +08:00
/*
* 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, 24(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
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