v4.19.13 snapshot.
diff --git a/arch/sh/boot/compressed/.gitignore b/arch/sh/boot/compressed/.gitignore
new file mode 100644
index 0000000..edff113
--- /dev/null
+++ b/arch/sh/boot/compressed/.gitignore
@@ -0,0 +1,6 @@
+ashiftrt.S
+ashldi3.c
+ashlsi3.S
+ashrsi3.S
+lshrsi3.S
+vmlinux.bin.*
diff --git a/arch/sh/boot/compressed/Makefile b/arch/sh/boot/compressed/Makefile
new file mode 100644
index 0000000..f5e1bd7
--- /dev/null
+++ b/arch/sh/boot/compressed/Makefile
@@ -0,0 +1,81 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# linux/arch/sh/boot/compressed/Makefile
+#
+# create a compressed vmlinux image from the original vmlinux
+#
+
+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 = $(obj)/head_$(BITS).o $(obj)/misc.o $(obj)/cache.o
+
+GCOV_PROFILE := n
+
+#
+# IMAGE_OFFSET is the load offset of the compression loader
+#
+ifeq ($(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 := --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))))
+
+lib1funcs-dir := $(srctree)/arch/$(SRCARCH)/lib
+ifeq ($(BITS),64)
+ lib1funcs-dir := $(addsuffix $(BITS), $(lib1funcs-dir))
+endif
+
+KBUILD_CFLAGS += -I$(lib1funcs-dir) -DDISABLE_BRANCH_PROFILING
+
+$(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)
+
+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)
+
+OBJCOPYFLAGS += -R .empty_zero_page
+
+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 0000000..31e04ff
--- /dev/null
+++ b/arch/sh/boot/compressed/cache.c
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0
+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_32.S b/arch/sh/boot/compressed/head_32.S
new file mode 100644
index 0000000..7bb1681
--- /dev/null
+++ b/arch/sh/boot/compressed/head_32.S
@@ -0,0 +1,126 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * linux/arch/sh/boot/compressed/head.S
+ *
+ * Copyright (C) 1999 Stuart Menefy
+ * Copyright (C) 2003 SUGIOKA Toshinobu
+ */
+
+.text
+
+#include <asm/page.h>
+
+ .global startup
+startup:
+ /* Load initial status register */
+ mov.l init_sr, r1
+ ldc r1, sr
+
+ /* Move myself to proper location if necessary */
+ mova 1f, r0
+ mov.l 1f, r2
+ cmp/eq r2, r0
+ bt clear_bss
+ sub r0, r2
+ mov.l bss_start_addr, r0
+ mov #0xffffffe0, r1
+ and r1, r0 ! align cache line
+ mov.l text_start_addr, r3
+ mov r0, r1
+ sub r2, r1
+3:
+ mov.l @r1, r4
+ mov.l @(4,r1), r5
+ mov.l @(8,r1), r6
+ mov.l @(12,r1), r7
+ mov.l @(16,r1), r8
+ mov.l @(20,r1), r9
+ mov.l @(24,r1), r10
+ mov.l @(28,r1), r11
+ mov.l r4, @r0
+ mov.l r5, @(4,r0)
+ mov.l r6, @(8,r0)
+ mov.l r7, @(12,r0)
+ mov.l r8, @(16,r0)
+ mov.l r9, @(20,r0)
+ mov.l r10, @(24,r0)
+ mov.l r11, @(28,r0)
+#ifdef CONFIG_CPU_SH4
+ ocbwb @r0
+#endif
+ cmp/hi r3, r0
+ add #-32, r0
+ bt/s 3b
+ add #-32, r1
+ mov.l 2f, r0
+ jmp @r0
+ nop
+
+ .align 2
+1: .long 1b
+2: .long clear_bss
+text_start_addr:
+ .long startup
+
+ /* Clear BSS */
+clear_bss:
+ mov.l end_addr, r1
+ mov.l bss_start_addr, r2
+ mov #0, r0
+l1:
+ mov.l r0, @-r1
+ cmp/eq r1,r2
+ bf l1
+
+ /* Set the initial pointer. */
+ mov.l init_stack_addr, r0
+ mov.l @r0, r15
+
+ /* Decompress the kernel */
+ mov.l decompress_kernel_addr, r0
+ jsr @r0
+ nop
+
+ /* Jump to the start of the decompressed kernel */
+ mov.l kernel_start_addr, r0
+ jmp @r0
+ nop
+
+ .align 2
+bss_start_addr:
+ .long __bss_start
+end_addr:
+ .long _end
+init_sr:
+ .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:
+#ifdef CONFIG_32BIT
+ .long ___pa(_text+PAGE_SIZE)
+#else
+ .long _text+PAGE_SIZE
+#endif
+
+ .align 9
+fake_headers_as_bzImage:
+ .word 0
+ .ascii "HdrS" ! header signature
+ .word 0x0202 ! header version number (>= 0x0105)
+ ! or else old loadlin-1.5 will fail)
+ .word 0 ! default_switch
+ .word 0 ! SETUPSEG
+ .word 0x1000
+ .word 0 ! pointing to kernel version string
+ .byte 0 ! = 0, old one (LILO, Loadlin,
+ ! 0xTV: T=0 for LILO
+ ! V = version
+ .byte 1 ! Load flags bzImage=1
+ .word 0x8000 ! size to move, when setup is not
+ .long 0x100000 ! 0x100000 = default for big kernel
+ .long 0 ! address of loaded ramdisk image
+ .long 0 # its size in bytes
diff --git a/arch/sh/boot/compressed/head_64.S b/arch/sh/boot/compressed/head_64.S
new file mode 100644
index 0000000..9993113
--- /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
new file mode 100644
index 0000000..f9f4181
--- /dev/null
+++ b/arch/sh/boot/compressed/install.sh
@@ -0,0 +1,56 @@
+#!/bin/sh
+#
+# arch/sh/boot/install.sh
+#
+# 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.
+#
+# Copyright (C) 1995 by Linus Torvalds
+#
+# Adapted from code in arch/i386/boot/Makefile by H. Peter Anvin
+# Adapted from code in arch/i386/boot/install.sh by Russell King
+# Adapted from code in arch/arm/boot/install.sh by Stuart Menefy
+#
+# "make install" script for sh architecture
+#
+# Arguments:
+# $1 - kernel version
+# $2 - kernel image file
+# $3 - kernel map file
+# $4 - default install path (blank if root directory)
+#
+
+# User may have a custom install script
+
+if [ -x /sbin/${INSTALLKERNEL} ]; then
+ exec /sbin/${INSTALLKERNEL} "$@"
+fi
+
+if [ "$2" = "zImage" ]; then
+# Compressed install
+ echo "Installing compressed kernel"
+ if [ -f $4/vmlinuz-$1 ]; then
+ mv $4/vmlinuz-$1 $4/vmlinuz.old
+ fi
+
+ if [ -f $4/System.map-$1 ]; then
+ mv $4/System.map-$1 $4/System.old
+ fi
+
+ cat $2 > $4/vmlinuz-$1
+ cp $3 $4/System.map-$1
+else
+# Normal install
+ echo "Installing normal kernel"
+ if [ -f $4/vmlinux-$1 ]; then
+ mv $4/vmlinux-$1 $4/vmlinux.old
+ fi
+
+ if [ -f $4/System.map ]; then
+ mv $4/System.map $4/System.old
+ fi
+
+ cat $2 > $4/vmlinux-$1
+ cp $3 $4/System.map
+fi
diff --git a/arch/sh/boot/compressed/misc.c b/arch/sh/boot/compressed/misc.c
new file mode 100644
index 0000000..c15cac9
--- /dev/null
+++ b/arch/sh/boot/compressed/misc.c
@@ -0,0 +1,146 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * arch/sh/boot/compressed/misc.c
+ *
+ * This is a collection of several routines from gzip-1.0.3
+ * adapted for Linux.
+ *
+ * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
+ *
+ * Adapted for SH by Stuart Menefy, Aug 1999
+ *
+ * Modified to use standard LinuxSH BIOS by Greg Banks 7Jul2000
+ */
+
+#include <linux/uaccess.h>
+#include <asm/addrspace.h>
+#include <asm/page.h>
+
+/*
+ * gzip declarations
+ */
+
+#define STATIC static
+
+#undef memset
+#undef memcpy
+#define memzero(s, n) memset ((s), 0, (n))
+
+/* 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 void error(char *m);
+
+int puts(const char *);
+
+extern int _text; /* Defined in vmlinux.lds.S */
+extern int _end;
+static unsigned long free_mem_ptr;
+static unsigned long free_mem_end_ptr;
+
+#ifdef CONFIG_HAVE_KERNEL_BZIP2
+#define HEAP_SIZE 0x400000
+#else
+#define HEAP_SIZE 0x10000
+#endif
+
+#ifdef CONFIG_KERNEL_GZIP
+#include "../../../../lib/decompress_inflate.c"
+#endif
+
+#ifdef CONFIG_KERNEL_BZIP2
+#include "../../../../lib/decompress_bunzip2.c"
+#endif
+
+#ifdef CONFIG_KERNEL_LZMA
+#include "../../../../lib/decompress_unlzma.c"
+#endif
+
+#ifdef CONFIG_KERNEL_XZ
+#include "../../../../lib/decompress_unxz.c"
+#endif
+
+#ifdef CONFIG_KERNEL_LZO
+#include "../../../../lib/decompress_unlzo.c"
+#endif
+
+int puts(const char *s)
+{
+ /* This should be updated to use the sh-sci routines */
+ return 0;
+}
+
+void* memset(void* s, int c, size_t n)
+{
+ int i;
+ char *ss = (char*)s;
+
+ for (i=0;i<n;i++) ss[i] = c;
+ return s;
+}
+
+void* memcpy(void* __dest, __const void* __src,
+ size_t __n)
+{
+ int i;
+ char *d = (char *)__dest, *s = (char *)__src;
+
+ for (i=0;i<__n;i++) d[i] = s[i];
+ return __dest;
+}
+
+static void error(char *x)
+{
+ puts("\n\n");
+ puts(x);
+ puts("\n\n -- System halted");
+
+ while(1); /* Halt */
+}
+
+const unsigned long __stack_chk_guard = 0x000a0dff;
+
+void __stack_chk_fail(void)
+{
+ error("stack-protector: Kernel stack is corrupted\n");
+}
+
+#ifdef CONFIG_SUPERH64
+#define stackalign 8
+#else
+#define stackalign 4
+#endif
+
+#define STACK_SIZE (4096)
+long __attribute__ ((aligned(stackalign))) user_stack[STACK_SIZE];
+long *stack_start = &user_stack[STACK_SIZE];
+
+void decompress_kernel(void)
+{
+ 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;
+
+ puts("Uncompressing Linux... ");
+ cache_control(CACHE_ENABLE);
+ __decompress(input_data, input_len, NULL, NULL, output, 0, NULL, error);
+ cache_control(CACHE_DISABLE);
+ puts("Ok, booting the kernel.\n");
+}