diff options
Diffstat (limited to 'arch/sh/boot/compressed')
| -rw-r--r-- | arch/sh/boot/compressed/.gitignore | 1 | ||||
| -rw-r--r-- | arch/sh/boot/compressed/Makefile | 72 | ||||
| -rw-r--r-- | arch/sh/boot/compressed/cache.c | 12 | ||||
| -rw-r--r-- | arch/sh/boot/compressed/head_32.S (renamed from arch/sh/boot/compressed/head.S) | 15 | ||||
| -rw-r--r-- | arch/sh/boot/compressed/head_64.S | 159 | ||||
| -rw-r--r-- | arch/sh/boot/compressed/install.sh | 4 | ||||
| -rw-r--r-- | arch/sh/boot/compressed/misc.c | 202 | ||||
| -rw-r--r-- | arch/sh/boot/compressed/vmlinux.scr | 9 |
8 files changed, 295 insertions, 179 deletions
diff --git a/arch/sh/boot/compressed/.gitignore b/arch/sh/boot/compressed/.gitignore new file mode 100644 index 00000000000..2374a83d87b --- /dev/null +++ b/arch/sh/boot/compressed/.gitignore @@ -0,0 +1 @@ +vmlinux.bin.* diff --git a/arch/sh/boot/compressed/Makefile b/arch/sh/boot/compressed/Makefile index 75a6876bf6c..23bc849d9c6 100644 --- a/arch/sh/boot/compressed/Makefile +++ b/arch/sh/boot/compressed/Makefile @@ -4,38 +4,78 @@ # create a compressed vmlinux image from the original vmlinux # -targets := vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o -EXTRA_AFLAGS := -traditional +targets := vmlinux vmlinux.bin vmlinux.bin.gz \ + vmlinux.bin.bz2 vmlinux.bin.lzma \ + vmlinux.bin.xz vmlinux.bin.lzo \ + head_$(BITS).o misc.o piggy.o -OBJECTS = $(obj)/head.o $(obj)/misc.o +OBJECTS = $(obj)/head_$(BITS).o $(obj)/misc.o $(obj)/cache.o -ifdef CONFIG_SH_STANDARD_BIOS -OBJECTS += $(obj)/../../kernel/sh_bios.o -endif +GCOV_PROFILE := n # # IMAGE_OFFSET is the load offset of the compression loader -# Assign dummy values if these 2 variables are not defined, -# in order to suppress error message. # -CONFIG_MEMORY_START ?= 0x0c000000 -CONFIG_BOOT_LINK_OFFSET ?= 0x00800000 -IMAGE_OFFSET := $(shell printf "0x%8x" $$[0x80000000+$(CONFIG_MEMORY_START)+$(CONFIG_BOOT_LINK_OFFSET)]) +ifeq ($(CONFIG_32BIT),y) +IMAGE_OFFSET := $(shell /bin/bash -c 'printf "0x%08x" \ + $$[$(CONFIG_MEMORY_START) + \ + $(CONFIG_BOOT_LINK_OFFSET)]') +else +IMAGE_OFFSET := $(shell /bin/bash -c 'printf "0x%08x" \ + $$[$(CONFIG_PAGE_OFFSET) + \ + $(KERNEL_MEMORY) + \ + $(CONFIG_BOOT_LINK_OFFSET)]') +endif + +ifeq ($(CONFIG_MCOUNT),y) +ORIG_CFLAGS := $(KBUILD_CFLAGS) +KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS)) +endif -LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -e startup -T $(obj)/../../kernel/vmlinux.lds +LDFLAGS_vmlinux := --oformat $(ld-bfd) -Ttext $(IMAGE_OFFSET) -e startup \ + -T $(obj)/../../kernel/vmlinux.lds + +# +# Pull in the necessary libgcc bits from the in-kernel implementation. +# +lib1funcs-$(CONFIG_SUPERH32) := ashiftrt.S ashldi3.c ashrsi3.S ashlsi3.S \ + lshrsi3.S +lib1funcs-obj := \ + $(addsuffix .o, $(basename $(addprefix $(obj)/, $(lib1funcs-y)))) -$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o FORCE +lib1funcs-dir := $(srctree)/arch/$(SRCARCH)/lib +ifeq ($(BITS),64) + lib1funcs-dir := $(addsuffix $(BITS), $(lib1funcs-dir)) +endif + +KBUILD_CFLAGS += -I$(lib1funcs-dir) + +$(addprefix $(obj)/,$(lib1funcs-y)): $(obj)/%: $(lib1funcs-dir)/% FORCE + $(call cmd,shipped) + +$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o $(lib1funcs-obj) FORCE $(call if_changed,ld) @: $(obj)/vmlinux.bin: vmlinux FORCE $(call if_changed,objcopy) -$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE +vmlinux.bin.all-y := $(obj)/vmlinux.bin + +$(obj)/vmlinux.bin.gz: $(vmlinux.bin.all-y) FORCE $(call if_changed,gzip) +$(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y) FORCE + $(call if_changed,bzip2) +$(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y) FORCE + $(call if_changed,lzma) +$(obj)/vmlinux.bin.xz: $(vmlinux.bin.all-y) FORCE + $(call if_changed,xzkern) +$(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y) FORCE + $(call if_changed,lzo) -LDFLAGS_piggy.o := -r --format binary --oformat elf32-sh-linux -T OBJCOPYFLAGS += -R .empty_zero_page -$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.gz FORCE +LDFLAGS_piggy.o := -r --format binary --oformat $(ld-bfd) -T + +$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix-y) FORCE $(call if_changed,ld) diff --git a/arch/sh/boot/compressed/cache.c b/arch/sh/boot/compressed/cache.c new file mode 100644 index 00000000000..d0b77b68a4d --- /dev/null +++ b/arch/sh/boot/compressed/cache.c @@ -0,0 +1,12 @@ +int cache_control(unsigned int command) +{ + volatile unsigned int *p = (volatile unsigned int *) 0x80000000; + int i; + + for (i = 0; i < (32 * 1024); i += 32) { + (void)*p; + p += (32 / sizeof(int)); + } + + return 0; +} diff --git a/arch/sh/boot/compressed/head.S b/arch/sh/boot/compressed/head_32.S index 88db04d325f..3e150326f1f 100644 --- a/arch/sh/boot/compressed/head.S +++ b/arch/sh/boot/compressed/head_32.S @@ -7,8 +7,7 @@ .text -#include <linux/config.h> -#include <linux/linkage.h> +#include <asm/page.h> .global startup startup: @@ -23,7 +22,7 @@ startup: bt clear_bss sub r0, r2 mov.l bss_start_addr, r0 - mov #0xe0, r1 + mov #0xffffffe0, r1 and r1, r0 ! align cache line mov.l text_start_addr, r3 mov r0, r1 @@ -92,13 +91,19 @@ bss_start_addr: end_addr: .long _end init_sr: - .long 0x400000F0 /* Privileged mode, Bank=0, Block=0, IMASK=0xF */ + .long 0x500000F0 /* Privileged mode, Bank=0, Block=1, IMASK=0xF */ +kexec_magic: + .long 0x400000F0 /* magic used by kexec to parse zImage format */ init_stack_addr: .long stack_start decompress_kernel_addr: .long decompress_kernel kernel_start_addr: - .long _text+0x1000 +#ifdef CONFIG_32BIT + .long ___pa(_text+PAGE_SIZE) +#else + .long _text+PAGE_SIZE +#endif .align 9 fake_headers_as_bzImage: diff --git a/arch/sh/boot/compressed/head_64.S b/arch/sh/boot/compressed/head_64.S new file mode 100644 index 00000000000..9993113c671 --- /dev/null +++ b/arch/sh/boot/compressed/head_64.S @@ -0,0 +1,159 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * arch/shmedia/boot/compressed/head.S + * + * Copied from + * arch/shmedia/kernel/head.S + * which carried the copyright: + * Copyright (C) 2000, 2001 Paolo Alberelli + * + * Modification for compressed loader: + * Copyright (C) 2002 Stuart Menefy (stuart.menefy@st.com) + */ +#include <asm/cache.h> +#include <asm/tlb.h> +#include <cpu/mmu_context.h> +#include <cpu/registers.h> + +/* + * Fixed TLB entries to identity map the beginning of RAM + */ +#define MMUIR_TEXT_H 0x0000000000000003 | CONFIG_MEMORY_START + /* Enabled, Shared, ASID 0, Eff. Add. 0xA0000000 */ +#define MMUIR_TEXT_L 0x000000000000009a | CONFIG_MEMORY_START + /* 512 Mb, Cacheable (Write-back), execute, Not User, Ph. Add. */ + +#define MMUDR_CACHED_H 0x0000000000000003 | CONFIG_MEMORY_START + /* Enabled, Shared, ASID 0, Eff. Add. 0xA0000000 */ +#define MMUDR_CACHED_L 0x000000000000015a | CONFIG_MEMORY_START + /* 512 Mb, Cacheable (Write-back), read/write, Not User, Ph. Add. */ + +#define ICCR0_INIT_VAL ICCR0_ON | ICCR0_ICI /* ICE + ICI */ +#define ICCR1_INIT_VAL ICCR1_NOLOCK /* No locking */ + +#define OCCR0_INIT_VAL OCCR0_ON | OCCR0_OCI | OCCR0_WB /* OCE + OCI + WB */ +#define OCCR1_INIT_VAL OCCR1_NOLOCK /* No locking */ + + .text + + .global startup +startup: + /* + * Prevent speculative fetch on device memory due to + * uninitialized target registers. + * This must be executed before the first branch. + */ + ptabs/u r63, tr0 + ptabs/u r63, tr1 + ptabs/u r63, tr2 + ptabs/u r63, tr3 + ptabs/u r63, tr4 + ptabs/u r63, tr5 + ptabs/u r63, tr6 + ptabs/u r63, tr7 + synci + + /* + * Set initial TLB entries for cached and uncached regions. + * Note: PTA/BLINK is PIC code, PTABS/BLINK isn't ! + */ + /* Clear ITLBs */ + pta 1f, tr1 + movi ITLB_FIXED, r21 + movi ITLB_LAST_VAR_UNRESTRICTED+TLB_STEP, r22 +1: putcfg r21, 0, r63 /* Clear MMUIR[n].PTEH.V */ + addi r21, TLB_STEP, r21 + bne r21, r22, tr1 + + /* Clear DTLBs */ + pta 1f, tr1 + movi DTLB_FIXED, r21 + movi DTLB_LAST_VAR_UNRESTRICTED+TLB_STEP, r22 +1: putcfg r21, 0, r63 /* Clear MMUDR[n].PTEH.V */ + addi r21, TLB_STEP, r21 + bne r21, r22, tr1 + + /* Map one big (512Mb) page for ITLB */ + movi ITLB_FIXED, r21 + movi MMUIR_TEXT_L, r22 /* PTEL first */ + putcfg r21, 1, r22 /* Set MMUIR[0].PTEL */ + movi MMUIR_TEXT_H, r22 /* PTEH last */ + putcfg r21, 0, r22 /* Set MMUIR[0].PTEH */ + + /* Map one big CACHED (512Mb) page for DTLB */ + movi DTLB_FIXED, r21 + movi MMUDR_CACHED_L, r22 /* PTEL first */ + putcfg r21, 1, r22 /* Set MMUDR[0].PTEL */ + movi MMUDR_CACHED_H, r22 /* PTEH last */ + putcfg r21, 0, r22 /* Set MMUDR[0].PTEH */ + + /* ICache */ + movi ICCR_BASE, r21 + movi ICCR0_INIT_VAL, r22 + movi ICCR1_INIT_VAL, r23 + putcfg r21, ICCR_REG0, r22 + putcfg r21, ICCR_REG1, r23 + synci + + /* OCache */ + movi OCCR_BASE, r21 + movi OCCR0_INIT_VAL, r22 + movi OCCR1_INIT_VAL, r23 + putcfg r21, OCCR_REG0, r22 + putcfg r21, OCCR_REG1, r23 + synco + + /* + * Enable the MMU. + * From here-on code can be non-PIC. + */ + movi SR_HARMLESS | SR_ENABLE_MMU, r22 + putcon r22, SSR + movi 1f, r22 + putcon r22, SPC + synco + rte /* And now go into the hyperspace ... */ +1: /* ... that's the next instruction ! */ + + /* Set initial stack pointer */ + movi datalabel stack_start, r0 + ld.l r0, 0, r15 + + /* + * Clear bss + */ + pt 1f, tr1 + movi datalabel __bss_start, r22 + movi datalabel _end, r23 +1: st.l r22, 0, r63 + addi r22, 4, r22 + bne r22, r23, tr1 + + /* + * Decompress the kernel. + */ + pt decompress_kernel, tr0 + blink tr0, r18 + + /* + * Disable the MMU. + */ + movi SR_HARMLESS, r22 + putcon r22, SSR + movi 1f, r22 + putcon r22, SPC + synco + rte /* And now go into the hyperspace ... */ +1: /* ... that's the next instruction ! */ + + /* Jump into the decompressed kernel */ + movi datalabel (CONFIG_MEMORY_START + 0x2000)+1, r19 + ptabs r19, tr0 + blink tr0, r18 + + /* Shouldn't return here, but just in case, loop forever */ + pt 1f, tr0 +1: blink tr0, r63 diff --git a/arch/sh/boot/compressed/install.sh b/arch/sh/boot/compressed/install.sh index 90589f0fec1..f9f41818b17 100644 --- a/arch/sh/boot/compressed/install.sh +++ b/arch/sh/boot/compressed/install.sh @@ -23,8 +23,8 @@ # User may have a custom install script -if [ -x /sbin/installkernel ]; then - exec /sbin/installkernel "$@" +if [ -x /sbin/${INSTALLKERNEL} ]; then + exec /sbin/${INSTALLKERNEL} "$@" fi if [ "$2" = "zImage" ]; then diff --git a/arch/sh/boot/compressed/misc.c b/arch/sh/boot/compressed/misc.c index 211e9110074..95470a472d2 100644 --- a/arch/sh/boot/compressed/misc.c +++ b/arch/sh/boot/compressed/misc.c @@ -11,83 +11,30 @@ * Modified to use standard LinuxSH BIOS by Greg Banks 7Jul2000 */ -#include <linux/config.h> #include <asm/uaccess.h> -#ifdef CONFIG_SH_STANDARD_BIOS -#include <asm/sh_bios.h> -#endif +#include <asm/addrspace.h> +#include <asm/page.h> /* * gzip declarations */ -#define OF(args) args #define STATIC static #undef memset #undef memcpy #define memzero(s, n) memset ((s), 0, (n)) -typedef unsigned char uch; -typedef unsigned short ush; -typedef unsigned long ulg; - -#define WSIZE 0x8000 /* Window size must be at least 32k, */ - /* and a power of two */ - -static uch *inbuf; /* input buffer */ -static uch window[WSIZE]; /* Sliding window buffer */ - -static unsigned insize = 0; /* valid bytes in inbuf */ -static unsigned inptr = 0; /* index of next byte to be processed in inbuf */ -static unsigned outcnt = 0; /* bytes in output buffer */ - -/* gzip flag byte */ -#define ASCII_FLAG 0x01 /* bit 0 set: file probably ASCII text */ -#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */ -#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */ -#define ORIG_NAME 0x08 /* bit 3 set: original file name present */ -#define COMMENT 0x10 /* bit 4 set: file comment present */ -#define ENCRYPTED 0x20 /* bit 5 set: file is encrypted */ -#define RESERVED 0xC0 /* bit 6,7: reserved */ - -#define get_byte() (inptr < insize ? inbuf[inptr++] : fill_inbuf()) - -/* Diagnostic functions */ -#ifdef DEBUG -# define Assert(cond,msg) {if(!(cond)) error(msg);} -# define Trace(x) fprintf x -# define Tracev(x) {if (verbose) fprintf x ;} -# define Tracevv(x) {if (verbose>1) fprintf x ;} -# define Tracec(c,x) {if (verbose && (c)) fprintf x ;} -# define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;} -#else -# define Assert(cond,msg) -# define Trace(x) -# define Tracev(x) -# define Tracevv(x) -# define Tracec(c,x) -# define Tracecv(c,x) -#endif - -static int fill_inbuf(void); -static void flush_window(void); -static void error(char *m); -static void gzip_mark(void **); -static void gzip_release(void **); +/* cache.c */ +#define CACHE_ENABLE 0 +#define CACHE_DISABLE 1 +int cache_control(unsigned int command); extern char input_data[]; extern int input_len; +static unsigned char *output; -static long bytes_out = 0; -static uch *output_data; -static unsigned long output_ptr = 0; - -static void *malloc(int size); -static void free(void *where); static void error(char *m); -static void gzip_mark(void **); -static void gzip_release(void **); int puts(const char *); @@ -96,65 +43,37 @@ extern int _end; static unsigned long free_mem_ptr; static unsigned long free_mem_end_ptr; -#define HEAP_SIZE 0x10000 - -#include "../../../../lib/inflate.c" - -static void *malloc(int size) -{ - void *p; - - if (size <0) error("Malloc error"); - if (free_mem_ptr == 0) error("Memory error"); - - free_mem_ptr = (free_mem_ptr + 3) & ~3; /* Align */ - - p = (void *)free_mem_ptr; - free_mem_ptr += size; - - if (free_mem_ptr >= free_mem_end_ptr) - error("Out of memory"); - - return p; -} +#ifdef CONFIG_HAVE_KERNEL_BZIP2 +#define HEAP_SIZE 0x400000 +#else +#define HEAP_SIZE 0x10000 +#endif -static void free(void *where) -{ /* Don't care */ -} +#ifdef CONFIG_KERNEL_GZIP +#include "../../../../lib/decompress_inflate.c" +#endif -static void gzip_mark(void **ptr) -{ - *ptr = (void *) free_mem_ptr; -} +#ifdef CONFIG_KERNEL_BZIP2 +#include "../../../../lib/decompress_bunzip2.c" +#endif -static void gzip_release(void **ptr) -{ - free_mem_ptr = (long) *ptr; -} +#ifdef CONFIG_KERNEL_LZMA +#include "../../../../lib/decompress_unlzma.c" +#endif -#ifdef CONFIG_SH_STANDARD_BIOS -size_t strlen(const char *s) -{ - int i = 0; +#ifdef CONFIG_KERNEL_XZ +#include "../../../../lib/decompress_unxz.c" +#endif - while (*s++) - i++; - return i; -} +#ifdef CONFIG_KERNEL_LZO +#include "../../../../lib/decompress_unlzo.c" +#endif int puts(const char *s) { - int len = strlen(s); - sh_bios_console_write(s, len); - return len; -} -#else -int puts(const char *s) -{ /* This should be updated to use the sh-sci routines */ return 0; } -#endif void* memset(void* s, int c, size_t n) { @@ -175,44 +94,6 @@ void* memcpy(void* __dest, __const void* __src, return __dest; } -/* =========================================================================== - * Fill the input buffer. This is called only when the buffer is empty - * and at least one byte is really needed. - */ -static int fill_inbuf(void) -{ - if (insize != 0) { - error("ran out of input data"); - } - - inbuf = input_data; - insize = input_len; - inptr = 1; - return inbuf[0]; -} - -/* =========================================================================== - * Write the output window window[0..outcnt-1] and update crc and bytes_out. - * (Used for the decompressed data only.) - */ -static void flush_window(void) -{ - ulg c = crc; /* temporary variable */ - unsigned n; - uch *in, *out, ch; - - in = window; - out = &output_data[output_ptr]; - for (n = 0; n < outcnt; n++) { - ch = *out++ = *in++; - c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8); - } - crc = c; - bytes_out += (ulg)outcnt; - output_ptr += (ulg)outcnt; - outcnt = 0; -} - static void error(char *x) { puts("\n\n"); @@ -222,19 +103,36 @@ static void error(char *x) while(1); /* Halt */ } +#ifdef CONFIG_SUPERH64 +#define stackalign 8 +#else +#define stackalign 4 +#endif + #define STACK_SIZE (4096) -long user_stack [STACK_SIZE]; -long* stack_start = &user_stack[STACK_SIZE]; +long __attribute__ ((aligned(stackalign))) user_stack[STACK_SIZE]; +long *stack_start = &user_stack[STACK_SIZE]; void decompress_kernel(void) { - output_data = 0; - output_ptr = (unsigned long)&_text+0x20001000; + unsigned long output_addr; + +#ifdef CONFIG_SUPERH64 + output_addr = (CONFIG_MEMORY_START + 0x2000); +#else + output_addr = __pa((unsigned long)&_text+PAGE_SIZE); +#if defined(CONFIG_29BIT) + output_addr |= P2SEG; +#endif +#endif + + output = (unsigned char *)output_addr; free_mem_ptr = (unsigned long)&_end; free_mem_end_ptr = free_mem_ptr + HEAP_SIZE; - makecrc(); puts("Uncompressing Linux... "); - gunzip(); + cache_control(CACHE_ENABLE); + decompress(input_data, input_len, NULL, NULL, output, NULL, error); + cache_control(CACHE_DISABLE); puts("Ok, booting the kernel.\n"); } diff --git a/arch/sh/boot/compressed/vmlinux.scr b/arch/sh/boot/compressed/vmlinux.scr index 1ed9d791f86..862d7480823 100644 --- a/arch/sh/boot/compressed/vmlinux.scr +++ b/arch/sh/boot/compressed/vmlinux.scr @@ -1,9 +1,10 @@ SECTIONS { - .data : { + .rodata..compressed : { input_len = .; - LONG(input_data_end - input_data) input_data = .; - *(.data) - input_data_end = .; + LONG(input_data_end - input_data) input_data = .; + *(.data) + output_len = . - 4; + input_data_end = .; } } |