[POWERPC] PS3: Bootwrapper support. (bafdb645) · Commits · 戴 / test

arch/powerpc/boot/Makefile

+12 −9

Original line number	Diff line number	Diff line
		@@ -46,7 +46,8 @@ src-wlib := string.S crt0.S stdio.c main.c flatdevtree.c flatdevtree_misc.c \
		gunzip_util.c elf_util.c $(zlib) devtree.c oflib.c ofconsole.c \
		44x.c ebony.c mv64x60.c mpsc.c mv64x60_i2c.c cuboot.c
		src-plat := of.c cuboot-83xx.c cuboot-85xx.c holly.c \
		cuboot-ebony.c treeboot-ebony.c prpmc2800.c
		cuboot-ebony.c treeboot-ebony.c prpmc2800.c \
		ps3-head.S ps3-hvcall.S ps3.c
		src-boot := $(src-wlib) $(src-plat) empty.c

		src-boot := $(addprefix $(obj)/, $(src-boot))
		@@ -75,11 +76,11 @@ $(addprefix $(obj)/,$(zliblinuxheader)): $(obj)/%: $(srctree)/include/linux/%
		$(obj)/empty.c:
		@touch $@

		$(obj)/zImage.lds $(obj)/zImage.coff.lds: $(obj)/%: $(srctree)/$(src)/%.S
		$(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds: $(obj)/%: $(srctree)/$(src)/%.S
		@cp $< $@

		clean-files := $(zlib) $(zlibheader) $(zliblinuxheader) \
		empty.c zImage.coff.lds zImage.lds
		empty.c zImage zImage.coff.lds zImage.ps3.lds zImage.lds

		quiet_cmd_bootcc = BOOTCC $@
		cmd_bootcc = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTCFLAGS) -c -o $@ $<
		@@ -102,7 +103,7 @@ hostprogs-y := addnote addRamDisk hack-coff mktree

		targets += $(patsubst $(obj)/%,%,$(obj-boot) wrapper.a)
		extra-y := $(obj)/wrapper.a $(obj-plat) $(obj)/empty.o \
		$(obj)/zImage.lds $(obj)/zImage.coff.lds
		$(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds

		wrapper :=$(srctree)/$(src)/wrapper
		wrapperbits := $(extra-y) $(addprefix $(obj)/,addnote hack-coff mktree) \
		@@ -179,11 +180,12 @@ $(obj)/zImage.%: vmlinux $(wrapperbits) $(dts)
		$(obj)/zImage.iseries: vmlinux
		$(STRIP) -s -R .comment $< -o $@

		$(obj)/zImage.ps3: vmlinux
		$(STRIP) -s -R .comment $< -o $@
		$(obj)/zImage.ps3: vmlinux $(wrapper) $(wrapperbits) $(srctree)/$(src)/dts/ps3.dts
		$(STRIP) -s -R .comment $< -o vmlinux.strip
		$(call cmd,wrap,ps3,$(srctree)/$(src)/dts/ps3.dts,,)

		$(obj)/zImage.initrd.ps3: vmlinux
		@echo " WARNING zImage.initrd.ps3 not supported (yet)"
		$(obj)/zImage.initrd.ps3: vmlinux $(wrapper) $(wrapperbits) $(srctree)/$(src)/dts/ps3.dts $(obj)/ramdisk.image.gz
		$(call cmd,wrap,ps3,$(srctree)/$(src)/dts/ps3.dts,,$(obj)/ramdisk.image.gz)

		$(obj)/uImage: vmlinux $(wrapperbits)
		$(call if_changed,wrap,uboot)
		@@ -206,7 +208,8 @@ install: $(CONFIGURE) $(addprefix $(obj)/, $(image-y))
		sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)" $<

		# anything not in $(targets)
		clean-files += $(image-) $(initrd-) zImage zImage.initrd cuImage.* treeImage.*
		clean-files += $(image-) $(initrd-) zImage zImage.initrd cuImage.* treeImage.* \
		otheros.bld

		# clean up files cached by wrapper
		clean-kernel := vmlinux.strip vmlinux.bin

arch/powerpc/boot/ps3-head.S

0 → 100644

+80 −0

Original line number	Diff line number	Diff line
		/*
		* PS3 bootwrapper entry.
		*
		* 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"

		.text

		/*
		* __system_reset_overlay - The PS3 first stage entry.
		*
		* The bootwraper build script copies the 0x100 bytes at symbol
		* __system_reset_overlay to offset 0x100 of the rom image.
		*
		* The PS3 has a single processor with two threads.
		*/

		.globl __system_reset_overlay
		__system_reset_overlay:

		/* Switch to 32-bit mode. */

		mfmsr r9
		clrldi r9,r9,1
		mtmsrd r9
		nop

		/* Get thread number in r3 and branch. */

		mfspr r3, 0x88
		cntlzw. r3, r3
		li r4, 0
		li r5, 0
		beq 1f

		/* Secondary goes to __secondary_hold in kernel. */

		li r4, 0x60
		mtctr r4
		bctr

		/* Primary delays then goes to _zimage_start in wrapper. */
		1:
		or 31, 31, 31 /* db16cyc */
		or 31, 31, 31 /* db16cyc */

		lis r4, _zimage_start@ha
		addi r4, r4, _zimage_start@l
		mtctr r4
		bctr

		/*
		* __system_reset_kernel - Place holder for the kernel reset vector.
		*
		* The bootwrapper build script copies 0x100 bytes from offset 0x100
		* of the rom image to the symbol __system_reset_kernel. At runtime
		* the bootwrapper program copies the 0x100 bytes at __system_reset_kernel
		* to ram address 0x100. This symbol must occupy 0x100 bytes.
		*/

		.globl __system_reset_kernel
		__system_reset_kernel:

		. = __system_reset_kernel + 0x100

arch/powerpc/boot/ps3-hvcall.S

0 → 100644

+184 −0

Original line number	Diff line number	Diff line
		/*
		* 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"

		/*
		* 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

arch/powerpc/boot/ps3.c

0 → 100644

+161 −0

Original line number	Diff line number	Diff line
		/*
		* PS3 bootwrapper support.
		*
		* 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 <stdarg.h>
		#include <stddef.h>
		#include "types.h"
		#include "elf.h"
		#include "string.h"
		#include "stdio.h"
		#include "page.h"
		#include "ops.h"

		extern s64 lv1_panic(u64 in_1);
		extern s64 lv1_get_logical_partition_id(u64 *out_1);
		extern s64 lv1_get_logical_ppe_id(u64 *out_1);
		extern s64 lv1_get_repository_node_value(u64 in_1, u64 in_2, u64 in_3,
		u64 in_4, u64 in_5, u64 out_1, u64 out_2);

		#ifdef DEBUG
		#define DBG(fmt...) printf(fmt)
		#else
		static inline int __attribute__ ((format (printf, 1, 2))) DBG(
		const char *fmt, ...) {return 0;}
		#endif

		BSS_STACK(4096);

		/* A buffer that may be edited by tools operating on a zImage binary so as to
		* edit the command line passed to vmlinux (by setting /chosen/bootargs).
		* The buffer is put in it's own section so that tools may locate it easier.
		*/
		static char cmdline[COMMAND_LINE_SIZE]
		__attribute__((__section__("__builtin_cmdline")));

		static void prep_cmdline(void *chosen)
		{
		if (cmdline[0] == '\0')
		getprop(chosen, "bootargs", cmdline, COMMAND_LINE_SIZE-1);
		else
		setprop_str(chosen, "bootargs", cmdline);

		printf("cmdline: '%s'\n", cmdline);
		}

		static void ps3_console_write(const char *buf, int len)
		{
		}

		static void ps3_exit(void)
		{
		printf("ps3_exit\n");

		/* lv1_panic will shutdown the lpar. */

		lv1_panic(0); /* zero = do not reboot */
		while (1);
		}

		static int ps3_repository_read_rm_size(u64 *rm_size)
		{
		s64 result;
		u64 lpar_id;
		u64 ppe_id;
		u64 v2;

		result = lv1_get_logical_partition_id(&lpar_id);

		if (result)
		return -1;

		result = lv1_get_logical_ppe_id(&ppe_id);

		if (result)
		return -1;

		/*
		* n1: 0000000062690000 : ....bi..
		* n2: 7075000000000000 : pu......
		* n3: 0000000000000001 : ........
		* n4: 726d5f73697a6500 : rm_size.
		*/

		result = lv1_get_repository_node_value(lpar_id, 0x0000000062690000ULL,
		0x7075000000000000ULL, ppe_id, 0x726d5f73697a6500ULL, rm_size,
		&v2);

		printf("%s:%d: ppe_id %lu \n", __func__, __LINE__,
		(unsigned long)ppe_id);
		printf("%s:%d: lpar_id %lu \n", __func__, __LINE__,
		(unsigned long)lpar_id);
		printf("%s:%d: rm_size %llxh \n", __func__, __LINE__, *rm_size);

		return result ? -1 : 0;
		}

		void ps3_copy_vectors(void)
		{
		extern char __system_reset_kernel[];

		memcpy((void *)0x100, __system_reset_kernel, 0x100);
		flush_cache((void *)0x100, 0x100);
		}

		void platform_init(void)
		{
		extern char _end[];
		extern char _dtb_start[];
		extern char _initrd_start[];
		extern char _initrd_end[];
		const u32 heapsize = 0x1000000 - (u32)_end; /* 16MiB */
		void *chosen;
		unsigned long ft_addr;
		u64 rm_size;

		console_ops.write = ps3_console_write;
		platform_ops.exit = ps3_exit;

		printf("\n-- PS3 bootwrapper --\n");

		simple_alloc_init(_end, heapsize, 32, 64);
		ft_init(_dtb_start, 0, 4);

		chosen = finddevice("/chosen");

		ps3_repository_read_rm_size(&rm_size);
		dt_fixup_memory(0, rm_size);

		if (_initrd_end > _initrd_start) {
		setprop_val(chosen, "linux,initrd-start", (u32)(_initrd_start));
		setprop_val(chosen, "linux,initrd-end", (u32)(_initrd_end));
		}

		prep_cmdline(chosen);

		ft_addr = dt_ops.finalize();

		ps3_copy_vectors();

		printf(" flat tree at 0x%lx\n\r", ft_addr);

		((kernel_entry_t)0)(ft_addr, 0, NULL);

		ps3_exit();
		}

arch/powerpc/boot/wrapper

+55 −0

Original line number	Diff line number	Diff line
		@@ -144,6 +144,15 @@ miboot\|uboot)
		cuboot*)
		gzip=
		;;
		ps3)
		platformo="$object/ps3-head.o $object/ps3-hvcall.o $object/ps3.o"
		lds=$object/zImage.ps3.lds
		gzip=
		ext=bin
		objflags="-O binary --set-section-flags=.bss=contents,alloc,load,data"
		ksection=.kernel:vmlinux.bin
		isection=.kernel:initrd
		;;
		esac

		vmz="$tmpdir/`basename \"$kernel\"`.$ext"
		@@ -239,4 +248,50 @@ treeboot*)
		fi
		exit 0
		;;
		ps3)
		# The ps3's loader supports loading gzipped binary images from flash
		# rom to addr zero. The loader enters the image at addr 0x100. 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.

		system_reset_overlay=0x`${CROSS}nm "$ofile" \
		\| grep ' __system_reset_overlay$' \
		\| cut -d' ' -f1`
		system_reset_overlay=`printf "%d" $system_reset_overlay`
		system_reset_kernel=0x`${CROSS}nm "$ofile" \
		\| grep ' __system_reset_kernel$' \
		\| cut -d' ' -f1`
		system_reset_kernel=`printf "%d" $system_reset_kernel`
		overlay_dest="256"
		overlay_size="256"

		rm -f "$object/otheros.bld"

		${CROSS}objcopy -O binary "$ofile" "$ofile.bin"

		msg=$(dd if="$ofile.bin" of="$ofile.bin" conv=notrunc \
		skip=$overlay_dest seek=$system_reset_kernel \
		count=$overlay_size bs=1 2>&1)

		if [ $? -ne "0" ]; then
		echo $msg
		exit 1
		fi

		msg=$(dd if="$ofile.bin" of="$ofile.bin" conv=notrunc \
		skip=$system_reset_overlay seek=$overlay_dest \
		count=$overlay_size bs=1 2>&1)

		if [ $? -ne "0" ]; then
		echo $msg
		exit 2
		fi

		gzip --force -9 --stdout "$ofile.bin" > "$object/otheros.bld"
		;;
		esac

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