[PATCH] sh64: merge updates

Mostly random bugfixes and some build fixes, as well as killing off some
leftover cruft.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/sh64/Kconfig

@@ -98,7 +98,12 @@ config BIG_ENDIAN
 
 endchoice
 
+config SH_FPU
+	bool "FPU support"
+	default y
+
 config SH64_FPU_DENORM_FLUSH
+	depends on SH_FPU
 	bool "Flush floating point denorms to zero"
 
 choice

arch/sh64/Kconfig.debug

@@ -19,6 +19,13 @@ config SH64_PROC_ASIDS
 config SH64_SR_WATCH
 	bool "Debug: set SR.WATCH to enable hardware watchpoints and trace"
 
+config POOR_MANS_STRACE
+	bool "Debug: enable rudimentary strace facility"
+	help
+	  This option allows system calls to be traced to the console.  It also
+	  aids in detecting kernel stack underflow.  It is useful for debugging
+	  early-userland problems (e.g. init incurring fatal exceptions.)
+
 config SH_ALPHANUMERIC
 	bool "Enable debug outputs to on-board alphanumeric display"
 

arch/sh64/Makefile

@@ -11,13 +11,6 @@
 # for "archclean" and "archdep" for cleaning up and making dependencies for
 # this architecture
 #
-# Note that top level Makefile automagically builds dependencies for SUBDIRS
-# but does not automagically clean SUBDIRS. Therefore "archclean" should clean
-# up all, "archdep" does nothing on added SUBDIRS.
-#
-ifndef include_config
--include .config
-endif
 
 cpu-y				:= -mb
 cpu-$(CONFIG_LITTLE_ENDIAN)	:= -ml
@@ -37,10 +30,17 @@ AFLAGS		+= -m5 -isa=sh64 -traditional
 CFLAGS		+= $(cpu-y)
 
 LDFLAGS_vmlinux	+= --defsym phys_stext=_stext-$(CONFIG_CACHED_MEMORY_OFFSET) \
-		   -e phys_stext
+		  --defsym phys_stext_shmedia=phys_stext+1 \
+		  -e phys_stext_shmedia
 
 OBJCOPYFLAGS	:= -O binary -R .note -R .comment -R .stab -R .stabstr -S
 
+#
+# arch/sh64/defconfig never had any hope of being
+# frequently updated, so use one that does
+#
+KBUILD_DEFCONFIG	:= cayman_defconfig
+
 ifdef LOADADDR
 LINKFLAGS     += -Ttext $(word 1,$(LOADADDR))
 endif
@@ -52,7 +52,11 @@ machine-$(CONFIG_SH_ROMRAM)	:= romram
 
 head-y := arch/$(ARCH)/kernel/head.o arch/$(ARCH)/kernel/init_task.o
 
-core-y += $(addprefix arch/$(ARCH)/, kernel/ mm/ mach-$(machine-y)/)
+core-y	+= arch/sh64/kernel/ arch/sh64/mm/
+
+ifneq ($(machine-y),)
+core-y	+= arch/sh64/mach-$(machine-y)/
+endif
 
 LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
 libs-y	+= arch/$(ARCH)/lib/ $(LIBGCC)
@@ -92,7 +96,7 @@ define filechk_gen-syscalltab
 	echo "struct syscall_info {"; \
 	echo "	const char *name;"; \
 	echo "} syscall_info_table[] = {"; \
-	sed -e '/^.*\.long /!d;s//\t{ "/;s/\(\([^/]*\)\/\)\{1\}.*/\2/; \
+	sed -e '/^.*\.long /!d;s//    { "/;s/\(\([^/]*\)\/\)\{1\}.*/\2/; \
 		s/[ \t]*$$//g;s/$$/" },/;s/\("\)sys_/\1/g'; \
 	echo "};"; \
 	echo ""; \

arch/sh64/kernel/Makefile

@@ -13,7 +13,7 @@
 # unless it's something special (ie not a .c file).
 #
 
-extra-y	:= head.o init_task.o vmlinux.lds.s
+extra-y	:= head.o init_task.o vmlinux.lds
 
 obj-y	:= process.o signal.o entry.o traps.o irq.o irq_intc.o \
 	   ptrace.o setup.o time.o sys_sh64.o semaphore.o sh_ksyms.o \
@@ -22,17 +22,15 @@ obj-y	:= process.o signal.o entry.o traps.o irq.o irq_intc.o \
 obj-$(CONFIG_HEARTBEAT)		+= led.o
 obj-$(CONFIG_SH_ALPHANUMERIC)	+= alphanum.o
 obj-$(CONFIG_SH_DMA)		+= dma.o
+obj-$(CONFIG_SH_FPU)		+= fpu.o
 obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
 obj-$(CONFIG_KALLSYMS)		+= unwind.o
 obj-$(CONFIG_PCI)		+= pci-dma.o pcibios.o
+obj-$(CONFIG_MODULES)		+= module.o
 
 ifeq ($(CONFIG_PCI),y)
 obj-$(CONFIG_CPU_SH5)		+= pci_sh5.o
 endif
 
-ifndef CONFIG_NOFPU_SUPPORT
-obj-y				+= fpu.o
-endif
-
 USE_STANDARD_AS_RULE := true
 

arch/sh64/kernel/dma.c

@@ -31,7 +31,7 @@ typedef struct {
 } dma_info_t;
 
 static dma_info_t dma_info[MAX_DMA_CHANNELS];
-extern spinlock_t dma_spin_lock;
+static DEFINE_SPINLOCK(dma_spin_lock);
 
 /* arch/sh64/kernel/irq_intc.c */
 extern void make_intc_irq(unsigned int irq);

arch/sh64/kernel/early_printk.c

@@ -16,8 +16,6 @@
 #include <asm/io.h>
 #include <asm/hardware.h>
 
-extern void cpu_relax(void);
-
 #define SCIF_BASE_ADDR	0x01030000
 #define SCIF_ADDR_SH5	PHYS_PERIPHERAL_BLOCK+SCIF_BASE_ADDR
 

arch/sh64/kernel/entry.S

@@ -6,7 +6,7 @@
  * arch/sh64/kernel/entry.S
  *
  * Copyright (C) 2000, 2001  Paolo Alberelli
- * Copyright (C) 2004  Paul Mundt
+ * Copyright (C) 2004, 2005  Paul Mundt
  * Copyright (C) 2003, 2004 Richard Curnow
  *
  */
@@ -155,7 +155,7 @@ trap_jtable:
 	.long	tlb_miss_store				/* 0x0C0 */
 	.long	do_address_error_load	/* 0x0E0 */
 	.long	do_address_error_store	/* 0x100 */
-#ifndef CONFIG_NOFPU_SUPPORT
+#ifdef CONFIG_SH_FPU
 	.long	do_fpu_error		/* 0x120 */
 #else
 	.long	do_exception_error		/* 0x120 */
@@ -237,6 +237,7 @@ LVBR_block:
 	.space	256, 0			/* Power-on class handler, */
 					/* not required here       */
 not_a_tlb_miss:
+	synco	/* TAKum03020 (but probably a good idea anyway.) */
 	/* Save original stack pointer into KCR1 */
 	putcon	SP, KCR1
 
@@ -278,6 +279,7 @@ not_a_tlb_miss:
 	 * block making sure the final alignment is correct.
 	 */
 tlb_miss:
+	synco	/* TAKum03020 (but probably a good idea anyway.) */
 	putcon	SP, KCR1
 	movi	reg_save_area, SP
 	/* SP is guaranteed 32-byte aligned. */
@@ -393,6 +395,7 @@ fixup_to_invoke_general_handler:
 	/* VBR + 0x600 */
 
 interrupt:
+	synco	/* TAKum03020 (but probably a good idea anyway.) */
 	/* Save original stack pointer into KCR1 */
 	putcon	SP, KCR1
 
@@ -429,6 +432,7 @@ LRESVEC_block:
 	 *			(this may need to be extended...)
 	 */
 reset_or_panic:
+	synco	/* TAKum03020 (but probably a good idea anyway.) */
 	putcon	SP, DCR
 	/* First save r0-1 and tr0, as we need to use these */
 	movi	resvec_save_area-CONFIG_CACHED_MEMORY_OFFSET, SP
@@ -481,6 +485,7 @@ single_step_panic:
 
 	.balign	256
 debug_exception:
+	synco	/* TAKum03020 (but probably a good idea anyway.) */
 	/*
 	 * Single step/software_break_point first level handler.
 	 * Called with MMU off, so the first thing we do is enable it
@@ -788,9 +793,7 @@ no_underflow:
 	! exceptions
 	add	SP, ZERO, r14
 
-#define POOR_MANS_STRACE 0
-
-#if POOR_MANS_STRACE
+#ifdef CONFIG_POOR_MANS_STRACE
 	/* We've pushed all the registers now, so only r2-r4 hold anything
 	 * useful. Move them into callee save registers */
 	or	r2, ZERO, r28
@@ -811,7 +814,6 @@ no_underflow:
 	or	r30, ZERO, r4
 #endif
 
-
 	/* For syscall and debug race condition, get TRA now */
 	getcon	TRA, r5
 
@@ -866,7 +868,7 @@ no_underflow:
  */
 	.global ret_from_irq
 ret_from_irq:
-#if POOR_MANS_STRACE
+#ifdef CONFIG_POOR_MANS_STRACE
 	pta	evt_debug_ret_from_irq, tr0
 	ori	SP, 0, r2
 	blink	tr0, LINK
@@ -884,7 +886,7 @@ ret_from_irq:
 ret_from_exception:
 	preempt_stop()
 
-#if POOR_MANS_STRACE
+#ifdef CONFIG_POOR_MANS_STRACE
 	pta	evt_debug_ret_from_exc, tr0
 	ori	SP, 0, r2
 	blink	tr0, LINK
@@ -1141,7 +1143,7 @@ call_do_page_fault:
 fpu_error_or_IRQA:
 	pta	its_IRQ, tr0
 	beqi/l	r4, EVENT_INTERRUPT, tr0
-#ifndef CONFIG_NOFPU_SUPPORT
+#ifdef CONFIG_SH_FPU
 	movi	do_fpu_state_restore, r6
 #else
 	movi	do_exception_error, r6
@@ -1152,7 +1154,7 @@ fpu_error_or_IRQA:
 fpu_error_or_IRQB:
 	pta	its_IRQ, tr0
 	beqi/l	r4, EVENT_INTERRUPT, tr0
-#ifndef CONFIG_NOFPU_SUPPORT
+#ifdef CONFIG_SH_FPU
 	movi	do_fpu_state_restore, r6
 #else
 	movi	do_exception_error, r6
@@ -1223,7 +1225,7 @@ syscall_bad:
 syscall_ret:
 	st.q	SP, FRAME_R(9), r2	/* Expecting SP back to BASIC frame */
 
-#if POOR_MANS_STRACE
+#ifdef CONFIG_POOR_MANS_STRACE
 	/* nothing useful in registers at this point */
 
 	movi	evt_debug2, r5
@@ -1254,7 +1256,7 @@ ret_from_fork:
 	ptabs	r5, tr0
 	blink	tr0, LINK
 
-#if POOR_MANS_STRACE
+#ifdef CONFIG_POOR_MANS_STRACE
 	/* nothing useful in registers at this point */
 
 	movi	evt_debug2, r5

arch/sh64/kernel/head.S

@@ -96,8 +96,8 @@ empty_zero_page:
 	.long	0		/* RAMDISK_FLAGS */
 	.long	0x0200		/* ORIG_ROOT_DEV */
 	.long	1		/* LOADER_TYPE */
-	.long	0x00360000	/* INITRD_START */
-	.long	0x000a0000	/* INITRD_SIZE */
+	.long	0x00800000	/* INITRD_START */
+	.long	0x00800000	/* INITRD_SIZE */
 	.long	0
 
 	.text
@@ -310,7 +310,7 @@ hyperspace:			    /* ... that's the next instruction !  */
 	 */
 	movi fpu_in_use, r31	/* Temporary */
 
-#ifndef CONFIG_NOFPU_SUPPORT
+#ifdef CONFIG_SH_FPU
 	getcon	SR, r21
 	movi	SR_ENABLE_FPU, r22
 	and	r21, r22, r22

arch/sh64/kernel/process.c

@@ -638,7 +638,6 @@ void free_task_struct(struct task_struct *p)
 int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
 {
 	/* A bit less processor dependent than older sh ... */
-
 	unsigned int reply;
 
 static __inline__ _syscall2(int,clone,unsigned long,flags,unsigned long,newsp)
@@ -671,7 +670,7 @@ void exit_thread(void)
 	   null it here, there is no other path through which it would get safely
 	   nulled. */
 
-#ifndef CONFIG_NOFPU_SUPPORT
+#ifdef CONFIG_SH_FPU
 	if (last_task_used_math == current) {
 		last_task_used_math = NULL;
 	}
@@ -683,7 +682,7 @@ void flush_thread(void)
 
 	/* Called by fs/exec.c (flush_old_exec) to remove traces of a
 	 * previously running executable. */
-#ifndef CONFIG_NOFPU_SUPPORT
+#ifdef CONFIG_SH_FPU
 	if (last_task_used_math == current) {
 		last_task_used_math = NULL;
 	}
@@ -709,7 +708,7 @@ void release_thread(struct task_struct *dead_task)
 /* Fill in the fpu structure for a core dump.. */
 int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu)
 {
-#ifndef CONFIG_NOFPU_SUPPORT
+#ifdef CONFIG_SH_FPU
 	int fpvalid;
 	struct task_struct *tsk = current;
 
@@ -741,7 +740,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
 	struct pt_regs *childregs;
 	unsigned long long se;			/* Sign extension */
 
-#ifndef CONFIG_NOFPU_SUPPORT
+#ifdef CONFIG_SH_FPU
 	if(last_task_used_math == current) {
 		grab_fpu();
 		fpsave(&current->thread.fpu.hard);
@@ -933,7 +932,7 @@ asids_proc_info(char *buf, char **start, off_t fpos, int length, int *eof, void
 	int len=0;
 	struct task_struct *p;
 	read_lock(&tasklist_lock);
-	for_each_task(p) {
+	for_each_process(p) {
 		int pid = p->pid;
 		struct mm_struct *mm;
 		if (!pid) continue;
@@ -942,7 +941,7 @@ asids_proc_info(char *buf, char **start, off_t fpos, int length, int *eof, void
 			unsigned long asid, context;
 			context = mm->context;
 			asid = (context & 0xff);
-			len += sprintf(buf+len, "%5d : %02x\n", pid, asid);
+			len += sprintf(buf+len, "%5d : %02lx\n", pid, asid);
 		} else {
 			len += sprintf(buf+len, "%5d : (none)\n", pid);
 		}

arch/sh64/kernel/ptrace.c

@@ -123,9 +123,26 @@ put_fpu_long(struct task_struct *task, unsigned long addr, unsigned long data)
 asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
 {
 	struct task_struct *child;
+	extern void poke_real_address_q(unsigned long long addr, unsigned long long data);
+#define WPC_DBRMODE 0x0d104008
+	static int first_call = 1;
 	int ret;
 
 	lock_kernel();
+
+	if (first_call) {
+		/* Set WPC.DBRMODE to 0.  This makes all debug events get
+		 * delivered through RESVEC, i.e. into the handlers in entry.S.
+		 * (If the kernel was downloaded using a remote gdb, WPC.DBRMODE
+		 * would normally be left set to 1, which makes debug events get
+		 * delivered through DBRVEC, i.e. into the remote gdb's
+		 * handlers.  This prevents ptrace getting them, and confuses
+		 * the remote gdb.) */
+		printk("DBRMODE set to 0 to permit native debugging\n");
+		poke_real_address_q(WPC_DBRMODE, 0);
+		first_call = 0;
+	}
+
 	ret = -EPERM;
 	if (request == PTRACE_TRACEME) {
 		/* are we already being traced? */

arch/sh64/kernel/sh_ksyms.c

@@ -19,6 +19,7 @@
 #include <linux/in6.h>
 #include <linux/interrupt.h>
 #include <linux/smp_lock.h>
+#include <linux/tty.h>
 
 #include <asm/semaphore.h>
 #include <asm/processor.h>
@@ -50,7 +51,6 @@ EXPORT_SYMBOL(kernel_thread);
 /* Networking helper routines. */
 EXPORT_SYMBOL(csum_partial_copy);
 
-EXPORT_SYMBOL(strtok);
 EXPORT_SYMBOL(strpbrk);
 EXPORT_SYMBOL(strstr);
 
@@ -72,12 +72,18 @@ EXPORT_SYMBOL(strlen);
 
 EXPORT_SYMBOL(flush_dcache_page);
 
+/* For ext3 */
+EXPORT_SYMBOL(sh64_page_clear);
+
 /* Ugh.  These come in from libgcc.a at link time. */
 
 extern void __sdivsi3(void);
 extern void __muldi3(void);
 extern void __udivsi3(void);
+extern char __div_table;
 EXPORT_SYMBOL(__sdivsi3);
 EXPORT_SYMBOL(__muldi3);
 EXPORT_SYMBOL(__udivsi3);
+EXPORT_SYMBOL(__div_table);
+
 

arch/sh64/kernel/signal.c

@@ -178,7 +178,7 @@ struct rt_sigframe
 	long long retcode[2];
 };
 
-#ifndef CONFIG_NOFPU_SUPPORT
+#ifdef CONFIG_SH_FPU
 static inline int
 restore_sigcontext_fpu(struct pt_regs *regs, struct sigcontext __user *sc)
 {
@@ -634,11 +634,9 @@ static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
  */
 
 static void
-handle_signal(unsigned long sig, siginfo_t *info, sigset_t *oldset,
-	      struct pt_regs * regs)
+handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
+		sigset_t *oldset, struct pt_regs * regs)
 {
-	struct k_sigaction *ka = &current->sighand->action[sig-1];
-
 	/* Are we from a system call? */
 	if (regs->syscall_nr >= 0) {
 		/* If so, check system call restarting.. */
@@ -666,9 +664,6 @@ handle_signal(unsigned long sig, siginfo_t *info, sigset_t *oldset,
 	else
 		setup_frame(sig, ka, oldset, regs);
 
-	if (ka->sa.sa_flags & SA_ONESHOT)
-		ka->sa.sa_handler = SIG_DFL;
-
 	if (!(ka->sa.sa_flags & SA_NODEFER)) {
 		spin_lock_irq(&current->sighand->siglock);
 		sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
@@ -691,6 +686,7 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset)
 {
 	siginfo_t info;
 	int signr;
+	struct k_sigaction ka;
 
 	/*
 	 * We want the common case to go fast, which
@@ -707,11 +703,11 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset)
 	if (!oldset)
 		oldset = &current->blocked;
 
-	signr = get_signal_to_deliver(&info, regs, 0);
+	signr = get_signal_to_deliver(&info, &ka, regs, 0);
 
 	if (signr > 0) {
 		/* Whee!  Actually deliver the signal.  */
-		handle_signal(signr, &info, oldset, regs);
+		handle_signal(signr, &info, &ka, oldset, regs);
 		return 1;
 	}
 

arch/sh64/kernel/switchto.S

@@ -27,7 +27,7 @@ sh64_switch_to:
    r5 - &next->thread
 
    Outgoing results
-   r2 - last (=prev)
+   r2 - last (=prev) : this just stays in r2 throughout
 
    Want to create a full (struct pt_regs) on the stack to allow backtracing
    functions to work.  However, we only need to populate the callee-save
@@ -188,7 +188,6 @@ sh64_switch_to:
 	! epilogue
 	ld.l	r15, 0, r18
 	ld.l	r15, 4, r14
-	ori	r4, 0, r2	! last = prev
 	ptabs	r18, tr0
 	movi	FRAME_SIZE, r0
 	add	r15, r0, r15

arch/sh64/kernel/sys_sh64.c

@@ -284,3 +284,17 @@ asmlinkage int sys_uname(struct old_utsname * name)
 	return err?-EFAULT:0;
 }
 
+/* Copy from mips version */
+asmlinkage long sys_shmatcall(int shmid, char __user *shmaddr,
+		int shmflg)
+{
+	unsigned long raddr;
+	int err;
+
+	err = do_shmat(shmid, shmaddr, shmflg, &raddr);
+	if (err)
+		return err;
+
+	err = raddr;
+	return err;
+}

arch/sh64/kernel/syscalls.S

@@ -268,7 +268,7 @@ sys_call_table:
 	.long sys_msgrcv
 	.long sys_msgget
 	.long sys_msgctl
-	.long sys_ni_syscall /* sys_shmatcall */
+	.long sys_shmatcall
 	.long sys_shmdt			/* 245 */
 	.long sys_shmget
 	.long sys_shmctl
@@ -337,4 +337,9 @@ sys_call_table:
 	.long sys_mq_timedreceive
 	.long sys_mq_notify
 	.long sys_mq_getsetattr		/* 310 */
+	.long sys_ni_syscall	/* Reserved for kexec */
+	.long sys_waitid
+	.long sys_add_key
+	.long sys_request_key
+	.long sys_keyctl		/* 315 */
 

arch/sh64/kernel/traps.c

@@ -30,6 +30,7 @@
 #include <linux/kallsyms.h>
 #include <linux/interrupt.h>
 #include <linux/sysctl.h>
+#include <linux/module.h>
 
 #include <asm/system.h>
 #include <asm/uaccess.h>
@@ -286,6 +287,8 @@ void dump_stack(void)
 {
 	show_task(NULL);
 }
+/* Needed by any user of WARN_ON in view of the defn in include/asm-sh/bug.h */
+EXPORT_SYMBOL(dump_stack);
 
 static void do_unhandled_exception(int trapnr, int signr, char *str, char *fn_name,
 		unsigned long error_code, struct pt_regs *regs, struct task_struct *tsk)

arch/sh64/lib/copy_user_memcpy.S

@@ -46,6 +46,11 @@
 
 */
 
+/* NOTE : Prefetches removed and allocos guarded by synco to avoid TAKum03020
+ * erratum.  The first two prefetches are nop-ed out to avoid upsetting the
+ * instruction counts used in the jump address calculation.
+ * */
+
 	.section .text..SHmedia32,"ax"
 	.little
 	.balign 32
@@ -58,7 +63,7 @@ copy_user_memcpy:
 #define LDUAL(P,O,D0,D1) ldlo.l P,O,D0; ldhi.l P,O+3,D1
 #define STUAL(P,O,D0,D1) stlo.l P,O,D0; sthi.l P,O+3,D1
 
-	ld.b r3,0,r63
+	nop ! ld.b r3,0,r63 ! TAKum03020
 	pta/l Large,tr0
 	movi 25,r0
 	bgeu/u r4,r0,tr0
@@ -108,7 +113,7 @@ L8_15:	/* 8..15 byte memcpy cntd. */
 
 	/* 2 or 3 byte memcpy */
 	ld.b r3,0,r0
-	ld.b r2,0,r63
+	nop ! ld.b r2,0,r63 ! TAKum03020
 	ld.b r3,1,r1
 	st.b r2,0,r0
 	pta/l L2_3,tr0
@@ -151,7 +156,7 @@ L8_15:	/* 8..15 byte memcpy cntd. */
 	blink tr1,r63
 
 Large:
-	ld.b r2, 0, r63
+	! ld.b r2, 0, r63 ! TAKum03020
 	pta/l  Loop_ua, tr1
 	ori r3, -8, r7
 	sub r2, r7, r22
@@ -173,8 +178,7 @@ Large:
 	addi r6, -8, r21
 
 Loop_line:
-	ldx.q r22, r36, r63
-	synco
+	! ldx.q r22, r36, r63 ! TAKum03020
 	alloco r22, 32
 	synco
 	addi r22, 32, r22

arch/sh64/lib/dbg.c

@@ -8,6 +8,7 @@
 -- Copyright 2004 Richard Curnow (evt_debug etc)
 --
 --------------------------------------------------------------------------*/
+#include <linux/config.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
@@ -136,6 +137,8 @@ void print_itlb(void)
 
 /* ======================================================================= */
 
+#ifdef CONFIG_POOR_MANS_STRACE
+
 #include "syscalltab.h"
 
 struct ring_node {
@@ -151,6 +154,17 @@ struct ring_node {
 static struct ring_node event_ring[16];
 static int event_ptr = 0;
 
+struct stored_syscall_data {
+	int pid;
+	int syscall_number;
+};
+
+#define N_STORED_SYSCALLS 16
+
+static struct stored_syscall_data stored_syscalls[N_STORED_SYSCALLS];
+static int syscall_next=0;
+static int syscall_next_print=0;
+
 void evt_debug(int evt, int ret_addr, int event, int tra, struct pt_regs *regs)
 {
 	int syscallno = tra & 0xff;
@@ -187,15 +201,35 @@ void evt_debug(int evt, int ret_addr, int event, int tra, struct pt_regs *regs)
 	event_ptr = (event_ptr + 1) & 15;
 
 	if ((event == 2) && (evt == 0x160)) {
-		if (syscallno < NUM_SYSCALL_INFO_ENTRIES)
-			printk("Task %d: %s()\n",
-			       current->pid,
-			       syscall_info_table[syscallno].name);
+		if (syscallno < NUM_SYSCALL_INFO_ENTRIES) {
+			/* Store the syscall information to print later.  We
+			 * can't print this now - currently we're running with
+			 * SR.BL=1, so we can't take a tlbmiss (which could occur
+			 * in the console drivers under printk).
+			 *
+			 * Just overwrite old entries on ring overflow - this
+			 * is only for last-hope debugging. */
+			stored_syscalls[syscall_next].pid = current->pid;
+			stored_syscalls[syscall_next].syscall_number = syscallno;
+			syscall_next++;
+			syscall_next &= (N_STORED_SYSCALLS - 1);
+		}
+	}
+}
+
+static void drain_syscalls(void) {
+	while (syscall_next_print != syscall_next) {
+		printk("Task %d: %s()\n",
+			stored_syscalls[syscall_next_print].pid,
+			syscall_info_table[stored_syscalls[syscall_next_print].syscall_number].name);
+			syscall_next_print++;
+			syscall_next_print &= (N_STORED_SYSCALLS - 1);
 	}
 }
 
 void evt_debug2(unsigned int ret)
 {
+	drain_syscalls();
 	printk("Task %d: syscall returns %08x\n", current->pid, ret);
 }
 
@@ -231,6 +265,8 @@ void evt_debug_ret_from_exc(struct pt_regs *regs)
 	event_ptr = (event_ptr + 1) & 15;
 }
 
+#endif /* CONFIG_POOR_MANS_STRACE */
+
 /* ======================================================================= */
 
 void show_excp_regs(char *from, int trapnr, int signr, struct pt_regs *regs)

arch/sh64/lib/old-checksum.c

-/*
- * FIXME: old compatibility stuff, will be removed soon.
- */
-
-#include <net/checksum.h>
-
-unsigned int csum_partial_copy( const char *src, char *dst, int len, int sum)
-{
-	int src_err=0, dst_err=0;
-
-	sum = csum_partial_copy_generic ( src, dst, len, sum, &src_err, &dst_err);
-
-	if (src_err || dst_err)
-		printk("old csum_partial_copy_fromuser(), tell mingo to convert me.\n");
-
-	return sum;
-}

arch/sh64/lib/page_clear.S

@@ -17,6 +17,8 @@
 
    Always clears 4096 bytes.
 
+   Note : alloco guarded by synco to avoid TAKum03020 erratum
+
 */
 
 	.section .text..SHmedia32,"ax"
@@ -34,6 +36,7 @@ sh64_page_clear:
 	add  r2, r63, r6
 1:
 	alloco r6, 0
+	synco	! TAKum03020
 	addi	r6, 32, r6
 	bgt/l	r7, r6, tr1
 

arch/sh64/lib/page_copy.S

@@ -39,12 +39,17 @@ sh64_page_copy:
 	pta 3f, tr3
 	ptabs r18, tr0
 
+#if 0
+	/* TAKum03020 */
 	ld.q r2, 0x00, r63
 	ld.q r2, 0x20, r63
 	ld.q r2, 0x40, r63
 	ld.q r2, 0x60, r63
+#endif
 	alloco r3, 0x00
+	synco		! TAKum03020
 	alloco r3, 0x20
+	synco		! TAKum03020
 
 	movi 3968, r6
 	add  r3, r6, r6
@@ -60,11 +65,15 @@ sh64_page_copy:
    because they overlap with the time spent waiting for prefetches to
    complete. */
 1:
+#if 0
+	/* TAKum03020 */
 	bge/u r3, r6, tr2  ! skip prefetch for last 4 lines
 	ldx.q r3, r22, r63 ! prefetch 4 lines hence
+#endif
 2:
 	bge/u r3, r7, tr3  ! skip alloco for last 2 lines
 	alloco r3, 0x40    ! alloc destination line 2 lines ahead
+	synco		! TAKum03020
 3:
 	ldx.q r3, r60, r36
 	ldx.q r3, r61, r37

arch/sh64/mm/extable.c

@@ -15,7 +15,8 @@
 #include <linux/module.h>
 #include <asm/uaccess.h>
 
-extern unsigned long copy_user_memcpy, copy_user_memcpy_end, __copy_user_fixup;
+extern unsigned long copy_user_memcpy, copy_user_memcpy_end;
+extern void __copy_user_fixup(void);
 
 static const struct exception_table_entry __copy_user_fixup_ex = {
 	.fixup = (unsigned long)&__copy_user_fixup,

arch/sh64/mm/fault.c

@@ -203,17 +203,17 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long writeaccess,
  * we can handle it..
  */
 good_area:
-	if (writeaccess) {
-		if (!(vma->vm_flags & VM_WRITE))
-			goto bad_area;
-	} else {
-		if (!(vma->vm_flags & (VM_READ | VM_EXEC)))
-			goto bad_area;
-	}
-
 	if (textaccess) {
 		if (!(vma->vm_flags & VM_EXEC))
 			goto bad_area;
+	} else {
+		if (writeaccess) {
+			if (!(vma->vm_flags & VM_WRITE))
+				goto bad_area;
+		} else {
+			if (!(vma->vm_flags & VM_READ))
+				goto bad_area;
+		}
 	}
 
 	/*
@@ -264,17 +264,28 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long writeaccess,
 	up_read(&mm->mmap_sem);
 
 	if (user_mode(regs)) {
-		printk("user mode bad_area address=%08lx pid=%d (%s) pc=%08lx opcode=%08lx\n",
-			address, current->pid, current->comm,
-			(unsigned long) regs->pc,
-			*(unsigned long *)(u32)(regs->pc & ~3));
-		show_regs(regs);
+		static int count=0;
+		siginfo_t info;
+		if (count < 4) {
+			/* This is really to help debug faults when starting
+			 * usermode, so only need a few */
+			count++;
+			printk("user mode bad_area address=%08lx pid=%d (%s) pc=%08lx\n",
+				address, current->pid, current->comm,
+				(unsigned long) regs->pc);
+#if 0
+			show_regs(regs);
+#endif
+		}
 		if (tsk->pid == 1) {
 			panic("INIT had user mode bad_area\n");
 		}
 		tsk->thread.address = address;
 		tsk->thread.error_code = writeaccess;
-		force_sig(SIGSEGV, tsk);
+		info.si_signo = SIGSEGV;
+		info.si_errno = 0;
+		info.si_addr = (void *) address;
+		force_sig_info(SIGSEGV, &info, tsk);
 		return;
 	}
 

arch/sh64/mm/ioremap.c

@@ -182,8 +182,8 @@ void iounmap(void *addr)
 }
 
 static struct resource shmedia_iomap = {
-        .name	= "shmedia_iomap",
-	.start	= IOBASE_VADDR,
+	.name	= "shmedia_iomap",
+	.start	= IOBASE_VADDR + PAGE_SIZE,
 	.end	= IOBASE_END - 1,
 };
 

arch/sh64/mm/tlbmiss.c

@@ -75,7 +75,6 @@ inline void __do_tlb_refill(unsigned long address,
 
 	/* Set PTEL register, set_pte has performed the sign extension */
 	ptel &= _PAGE_FLAGS_HARDWARE_MASK; /* drop software flags */
-	ptel |= _PAGE_FLAGS_HARDWARE_DEFAULT; /* add default flags */
 
 	tlbp = is_text_not_data ? &(cpu_data->itlb) : &(cpu_data->dtlb);
 	next = tlbp->next;

arch/sh64/oprofile/op_model_null.c

@@ -12,7 +12,7 @@
 #include <linux/init.h>
 #include <linux/errno.h>
 
-int __init oprofile_arch_init(struct oprofile_operations **ops)
+int __init oprofile_arch_init(struct oprofile_operations *ops)
 {
 	return -ENODEV;
 }

include/asm-sh64/bug.h

 #ifndef __ASM_SH64_BUG_H
 #define __ASM_SH64_BUG_H
 
-#include <asm-sh/bug.h>
+#include <linux/config.h>
+
+/*
+ * Tell the user there is some problem, then force a segfault (in process
+ * context) or a panic (interrupt context).
+ */
+#define BUG() do { \
+	printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
+	*(volatile int *)0 = 0; \
+} while (0)
+
+#define BUG_ON(condition) do { \
+	if (unlikely((condition)!=0)) \
+		BUG(); \
+} while(0)
+
+#define PAGE_BUG(page) do { \
+	BUG(); \
+} while (0)
+
+#define WARN_ON(condition) do { \
+	if (unlikely((condition)!=0)) { \
+		printk("Badness in %s at %s:%d\n", __FUNCTION__, __FILE__, __LINE__); \
+		dump_stack(); \
+	} \
+} while (0)
 
 #endif /* __ASM_SH64_BUG_H */
 

include/asm-sh64/hardware.h

@@ -17,29 +17,6 @@
 #define	PHYS_PERIPHERAL_BLOCK	0x09000000
 #define PHYS_DMAC_BLOCK		0x0e000000
 #define PHYS_PCI_BLOCK		0x60000000
-
-#ifndef __ASSEMBLY__
-#include <linux/types.h>
-#include <asm/io.h>
-
-struct vcr_info {
-	u8	perr_flags;	/* P-port Error flags */
-	u8	merr_flags;	/* Module Error flags */
-	u16	mod_vers;	/* Module Version */
-	u16	mod_id;		/* Module ID */
-	u8	bot_mb;		/* Bottom Memory block */
-	u8	top_mb;		/* Top Memory block */
-};
-
-static inline struct vcr_info sh64_get_vcr_info(unsigned long base)
-{
-	unsigned long long tmp;
-
-	tmp = sh64_in64(base);
-
-	return *((struct vcr_info *)&tmp);
-}
-
-#endif /* __ASSEMBLY__ */
+#define PHYS_EMI_BLOCK		0xff000000
 
 #endif /* __ASM_SH64_HARDWARE_H */

include/asm-sh64/ioctls.h

@@ -9,103 +9,108 @@
  * include/asm-sh64/ioctls.h
  *
  * Copyright (C) 2000, 2001  Paolo Alberelli
+ * Copyright (C) 2004  Richard Curnow
  *
  */
 
 #include <asm/ioctl.h>
 
-#define FIOCLEX		_IO('f', 1)
-#define FIONCLEX	_IO('f', 2)
-#define FIOASYNC	_IOW('f', 125, int)
-#define FIONBIO		_IOW('f', 126, int)
-#define FIONREAD	_IOR('f', 127, int)
+#define FIOCLEX		0x6601		/* _IO('f', 1) */
+#define FIONCLEX	0x6602		/* _IO('f', 2) */
+#define FIOASYNC	0x4004667d	/* _IOW('f', 125, int) */
+#define FIONBIO		0x4004667e	/* _IOW('f', 126, int) */
+#define FIONREAD	0x8004667f	/* _IOW('f', 127, int) */
 #define TIOCINQ		FIONREAD
-#define FIOQSIZE	_IOR('f', 128, loff_t)
+#define FIOQSIZE	0x80086680	/* _IOR('f', 128, loff_t) */
 
 #define TCGETS		0x5401
 #define TCSETS		0x5402
 #define TCSETSW		0x5403
 #define TCSETSF		0x5404
 
-#define TCGETA		_IOR('t', 23, struct termio)
-#define TCSETA		_IOW('t', 24, struct termio)
-#define TCSETAW		_IOW('t', 25, struct termio)
-#define TCSETAF		_IOW('t', 28, struct termio)
-
-#define TCSBRK		_IO('t', 29)
-#define TCXONC		_IO('t', 30)
-#define TCFLSH		_IO('t', 31)
-
-#define TIOCSWINSZ	_IOW('t', 103, struct winsize)
-#define TIOCGWINSZ	_IOR('t', 104, struct winsize)
-#define	TIOCSTART	_IO('t', 110)		/* start output, like ^Q */
-#define	TIOCSTOP	_IO('t', 111)		/* stop output, like ^S */
-#define TIOCOUTQ        _IOR('t', 115, int)     /* output queue size */
-
-#define TIOCSPGRP	_IOW('t', 118, int)
-#define TIOCGPGRP	_IOR('t', 119, int)
-
-#define TIOCEXCL	_IO('T', 12) /* 0x540C */
-#define TIOCNXCL	_IO('T', 13) /* 0x540D */
-#define TIOCSCTTY	_IO('T', 14) /* 0x540E */
-
-#define TIOCSTI		_IOW('T', 18, char) /* 0x5412 */
-#define TIOCMGET	_IOR('T', 21, unsigned int) /* 0x5415 */
-#define TIOCMBIS	_IOW('T', 22, unsigned int) /* 0x5416 */
-#define TIOCMBIC	_IOW('T', 23, unsigned int) /* 0x5417 */
-#define TIOCMSET	_IOW('T', 24, unsigned int) /* 0x5418 */
-# define TIOCM_LE	0x001
-# define TIOCM_DTR	0x002
-# define TIOCM_RTS	0x004
-# define TIOCM_ST	0x008
-# define TIOCM_SR	0x010
-# define TIOCM_CTS	0x020
-# define TIOCM_CAR	0x040
-# define TIOCM_RNG	0x080
-# define TIOCM_DSR	0x100
-# define TIOCM_CD	TIOCM_CAR
-# define TIOCM_RI	TIOCM_RNG
-
-#define TIOCGSOFTCAR	_IOR('T', 25, unsigned int) /* 0x5419 */
-#define TIOCSSOFTCAR	_IOW('T', 26, unsigned int) /* 0x541A */
-#define TIOCLINUX	_IOW('T', 28, char) /* 0x541C */
-#define TIOCCONS	_IO('T', 29) /* 0x541D */
-#define TIOCGSERIAL	_IOR('T', 30, struct serial_struct) /* 0x541E */
-#define TIOCSSERIAL	_IOW('T', 31, struct serial_struct) /* 0x541F */
-#define TIOCPKT		_IOW('T', 32, int) /* 0x5420 */
-# define TIOCPKT_DATA		 0
-# define TIOCPKT_FLUSHREAD	 1
-# define TIOCPKT_FLUSHWRITE	 2
-# define TIOCPKT_STOP		 4
-# define TIOCPKT_START		 8
-# define TIOCPKT_NOSTOP		16
-# define TIOCPKT_DOSTOP		32
-
-
-#define TIOCNOTTY	_IO('T', 34) /* 0x5422 */
-#define TIOCSETD	_IOW('T', 35, int) /* 0x5423 */
-#define TIOCGETD	_IOR('T', 36, int) /* 0x5424 */
-#define TCSBRKP		_IOW('T', 37, int) /* 0x5425 */	/* Needed for POSIX tcsendbreak() */
-#define TIOCTTYGSTRUCT	_IOR('T', 38, struct tty_struct) /* 0x5426 */ /* For debugging only */
-#define TIOCSBRK	_IO('T', 39) /* 0x5427 */ /* BSD compatibility */
-#define TIOCCBRK	_IO('T', 40) /* 0x5428 */ /* BSD compatibility */
-#define TIOCGSID	_IOR('T', 41, pid_t) /* 0x5429 */ /* Return the session ID of FD */
-#define TIOCGPTN	_IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
-#define TIOCSPTLCK	_IOW('T',0x31, int)  /* Lock/unlock Pty */
-
-#define TIOCSERCONFIG	_IO('T', 83) /* 0x5453 */
-#define TIOCSERGWILD	_IOR('T', 84,  int) /* 0x5454 */
-#define TIOCSERSWILD	_IOW('T', 85,  int) /* 0x5455 */
+#define TCGETA		0x80127417	/* _IOR('t', 23, struct termio) */
+#define TCSETA		0x40127418	/* _IOW('t', 24, struct termio) */
+#define TCSETAW		0x40127419	/* _IOW('t', 25, struct termio) */
+#define TCSETAF		0x4012741c	/* _IOW('t', 28, struct termio) */
+
+#define TCSBRK		0x741d		/* _IO('t', 29) */
+#define TCXONC		0x741e		/* _IO('t', 30) */
+#define TCFLSH		0x741f		/* _IO('t', 31) */
+
+#define TIOCSWINSZ	0x40087467	/* _IOW('t', 103, struct winsize) */
+#define TIOCGWINSZ	0x80087468	/* _IOR('t', 104, struct winsize) */
+#define	TIOCSTART	0x746e		/* _IO('t', 110)  start output, like ^Q */
+#define	TIOCSTOP	0x746f		/* _IO('t', 111)  stop output, like ^S */
+#define TIOCOUTQ        0x80047473	/* _IOR('t', 115, int) output queue size */
+
+#define TIOCSPGRP	0x40047476	/* _IOW('t', 118, int) */
+#define TIOCGPGRP	0x80047477	/* _IOR('t', 119, int) */
+
+#define TIOCEXCL	0x540c		/* _IO('T', 12) */
+#define TIOCNXCL	0x540d		/* _IO('T', 13) */
+#define TIOCSCTTY	0x540e		/* _IO('T', 14) */
+
+#define TIOCSTI		0x40015412	/* _IOW('T', 18, char) 0x5412 */
+#define TIOCMGET	0x80045415	/* _IOR('T', 21, unsigned int) 0x5415 */
+#define TIOCMBIS	0x40045416	/* _IOW('T', 22, unsigned int) 0x5416 */
+#define TIOCMBIC	0x40045417	/* _IOW('T', 23, unsigned int) 0x5417 */
+#define TIOCMSET	0x40045418	/* _IOW('T', 24, unsigned int) 0x5418 */
+
+#define TIOCM_LE	0x001
+#define TIOCM_DTR	0x002
+#define TIOCM_RTS	0x004
+#define TIOCM_ST	0x008
+#define TIOCM_SR	0x010
+#define TIOCM_CTS	0x020
+#define TIOCM_CAR	0x040
+#define TIOCM_RNG	0x080
+#define TIOCM_DSR	0x100
+#define TIOCM_CD	TIOCM_CAR
+#define TIOCM_RI	TIOCM_RNG
+
+#define TIOCGSOFTCAR	0x80045419	/* _IOR('T', 25, unsigned int) 0x5419 */
+#define TIOCSSOFTCAR	0x4004541a	/* _IOW('T', 26, unsigned int) 0x541A */
+#define TIOCLINUX	0x4004541c	/* _IOW('T', 28, char) 0x541C */
+#define TIOCCONS	0x541d		/* _IO('T', 29) */
+#define TIOCGSERIAL	0x803c541e	/* _IOR('T', 30, struct serial_struct) 0x541E */
+#define TIOCSSERIAL	0x403c541f	/* _IOW('T', 31, struct serial_struct) 0x541F */
+#define TIOCPKT		0x40045420	/* _IOW('T', 32, int) 0x5420 */
+
+#define TIOCPKT_DATA		 0
+#define TIOCPKT_FLUSHREAD	 1
+#define TIOCPKT_FLUSHWRITE	 2
+#define TIOCPKT_STOP		 4
+#define TIOCPKT_START		 8
+#define TIOCPKT_NOSTOP		16
+#define TIOCPKT_DOSTOP		32
+
+
+#define TIOCNOTTY	0x5422		/* _IO('T', 34) */
+#define TIOCSETD	0x40045423	/* _IOW('T', 35, int) 0x5423 */
+#define TIOCGETD	0x80045424	/* _IOR('T', 36, int) 0x5424 */
+#define TCSBRKP		0x40045424	/* _IOW('T', 37, int) 0x5425 */	/* Needed for POSIX tcsendbreak() */
+#define TIOCTTYGSTRUCT	0x8c105426	/* _IOR('T', 38, struct tty_struct) 0x5426 */ /* For debugging only */
+#define TIOCSBRK	0x5427		/* _IO('T', 39) */ /* BSD compatibility */
+#define TIOCCBRK	0x5428		/* _IO('T', 40) */ /* BSD compatibility */
+#define TIOCGSID	0x80045429	/* _IOR('T', 41, pid_t) 0x5429 */ /* Return the session ID of FD */
+#define TIOCGPTN	0x80045430	/* _IOR('T',0x30, unsigned int) 0x5430 Get Pty Number (of pty-mux device) */
+#define TIOCSPTLCK	0x40045431	/* _IOW('T',0x31, int) Lock/unlock Pty */
+
+#define TIOCSERCONFIG	0x5453		/* _IO('T', 83) */
+#define TIOCSERGWILD	0x80045454	/* _IOR('T', 84,  int) 0x5454 */
+#define TIOCSERSWILD	0x40045455	/* _IOW('T', 85,  int) 0x5455 */
 #define TIOCGLCKTRMIOS	0x5456
 #define TIOCSLCKTRMIOS	0x5457
-#define TIOCSERGSTRUCT	_IOR('T', 88, struct async_struct) /* 0x5458 */ /* For debugging only */
-#define TIOCSERGETLSR   _IOR('T', 89, unsigned int) /* 0x5459 */ /* Get line status register */
-  /* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
-# define TIOCSER_TEMT    0x01	/* Transmitter physically empty */
-#define TIOCSERGETMULTI _IOR('T', 90, struct serial_multiport_struct) /* 0x545A */ /* Get multiport config  */
-#define TIOCSERSETMULTI _IOW('T', 91, struct serial_multiport_struct) /* 0x545B */ /* Set multiport config */
-
-#define TIOCMIWAIT	_IO('T', 92) /* 0x545C */	/* wait for a change on serial input line(s) */
-#define TIOCGICOUNT	_IOR('T', 93, struct async_icount) /* 0x545D */	/* read serial port inline interrupt counts */
+#define TIOCSERGSTRUCT	0x80d85458	/* _IOR('T', 88, struct async_struct) 0x5458 */ /* For debugging only */
+#define TIOCSERGETLSR   0x80045459	/* _IOR('T', 89, unsigned int) 0x5459 */ /* Get line status register */
+
+/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
+#define TIOCSER_TEMT    0x01	/* Transmitter physically empty */
+
+#define TIOCSERGETMULTI 0x80a8545a	/* _IOR('T', 90, struct serial_multiport_struct) 0x545A */ /* Get multiport config  */
+#define TIOCSERSETMULTI 0x40a8545b	/* _IOW('T', 91, struct serial_multiport_struct) 0x545B */ /* Set multiport config */
+
+#define TIOCMIWAIT	0x545c		/* _IO('T', 92) wait for a change on serial input line(s) */
+#define TIOCGICOUNT	0x802c545d	/* _IOR('T', 93, struct async_icount) 0x545D */	/* read serial port inline interrupt counts */
 
 #endif /* __ASM_SH64_IOCTLS_H */

include/asm-sh64/pgtable.h

@@ -281,8 +281,6 @@ static inline pmd_t * pmd_offset(pgd_t * dir, unsigned long address)
 
 /* Mask which drops software flags */
 #define _PAGE_FLAGS_HARDWARE_MASK	0xfffffffffffff3dbLL
-/* Flags default: 4KB, Read, Not write, Not execute, Not user */
-#define _PAGE_FLAGS_HARDWARE_DEFAULT	0x0000000000000040LL
 
 /*
  * HugeTLB support

include/asm-sh64/system.h

@@ -15,7 +15,6 @@
  */
 
 #include <linux/config.h>
-#include <linux/kernel.h>
 #include <asm/registers.h>
 #include <asm/processor.h>
 

include/asm-sh64/thread_info.h

@@ -61,13 +61,18 @@ static inline struct thread_info *current_thread_info(void)
 }
 
 /* thread information allocation */
-#define alloc_thread_info(ti) ((struct thread_info *) __get_free_pages(GFP_KERNEL,2))
+
+
+
+#define alloc_thread_info(ti) ((struct thread_info *) __get_free_pages(GFP_KERNEL,1))
 #define free_thread_info(ti) free_pages((unsigned long) (ti), 1)
 #define get_thread_info(ti) get_task_struct((ti)->task)
 #define put_thread_info(ti) put_task_struct((ti)->task)
 
 #endif /* __ASSEMBLY__ */
 
+#define THREAD_SIZE  8192
+
 #define PREEMPT_ACTIVE		0x4000000
 
 /* thread information flags */
@@ -76,7 +81,6 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_NEED_RESCHED	3	/* rescheduling necessary */
 #define TIF_MEMDIE		4
 
-#define THREAD_SIZE	16384
 
 #endif /* __KERNEL__ */
 

include/asm-sh64/unistd.h

@@ -333,8 +333,13 @@
 #define __NR_mq_timedreceive    (__NR_mq_open+3)
 #define __NR_mq_notify          (__NR_mq_open+4)
 #define __NR_mq_getsetattr      (__NR_mq_open+5)
+#define __NR_sys_kexec_load	311
+#define __NR_waitid		312
+#define __NR_add_key		313
+#define __NR_request_key	314
+#define __NR_keyctl		315
 
-#define NR_syscalls 311
+#define NR_syscalls 316
 
 /* user-visible error numbers are in the range -1 - -125: see <asm-sh64/errno.h> */