Merge flint.arm.linux.org.uk:/usr/src/linux-bk-2.5/linux-2.5

into flint.arm.linux.org.uk:/usr/src/linux-bk-2.5/linux-2.5-rmk

arch/arm/boot/compressed/Makefile

@@ -9,7 +9,7 @@
 
 HEAD	= head.o
 OBJS	= misc.o
-FONTC	= drivers/video/font_acorn_8x8.c
+FONTC	= drivers/video/console/font_acorn_8x8.c
 
 #
 # Architecture dependencies

arch/arm/kernel/calls.S

@@ -14,7 +14,7 @@
 #else
 
 __syscall_start:
-/* 0 */		.long	sys_ni_syscall
+/* 0 */		.long	sys_restart_syscall
 		.long	sys_exit
 		.long	sys_fork_wrapper
 		.long	sys_read

arch/arm/kernel/signal.c

@@ -603,7 +603,7 @@ static int do_signal(sigset_t *oldset, struct pt_regs *regs, int syscall)
 			case SIGQUIT: case SIGILL: case SIGTRAP:
 			case SIGABRT: case SIGFPE: case SIGSEGV:
 			case SIGBUS: case SIGSYS: case SIGXCPU: case SIGXFSZ:
-				if (do_coredump(signr, regs))
+				if (do_coredump(signr, exit_code, regs))
 					exit_code |= 0x80;
 				/* FALLTHRU */
 
@@ -615,7 +615,11 @@ static int do_signal(sigset_t *oldset, struct pt_regs *regs, int syscall)
 
 		/* Are we from a system call? */
 		if (syscall) {
+			/* If so, check system call restarting.. */
 			switch (regs->ARM_r0) {
+			case -ERESTART_RESTARTBLOCK:
+				current_thread_info()->restart_block.fn =
+					do_no_restart_syscall;
 			case -ERESTARTNOHAND:
 				regs->ARM_r0 = -EINTR;
 				break;
@@ -638,12 +642,35 @@ static int do_signal(sigset_t *oldset, struct pt_regs *regs, int syscall)
 		return 1;
 	}
 
-	if (syscall &&
-	    (regs->ARM_r0 == -ERESTARTNOHAND ||
-	     regs->ARM_r0 == -ERESTARTSYS ||
-	     regs->ARM_r0 == -ERESTARTNOINTR)) {
-		regs->ARM_r0 = regs->ARM_ORIG_r0;
-		regs->ARM_pc -= 4;
+	/*
+	 * No signal to deliver to the process - restart the syscall.
+	 */
+	if (syscall) {
+		if (regs->ARM_r0 == -ERESTART_RESTARTBLOCK) {
+			if (thumb_mode(regs)) {
+				regs->ARM_r7 = __NR_restart_syscall;
+				regs->ARM_pc -= 2;
+			} else {
+				u32 *usp;
+
+				regs->ARM_sp -= 12;
+				usp = (u32 *)regs->ARM_sp;
+
+				put_user(regs->ARM_pc, &usp[0]);
+				/* swi __NR_restart_syscall */
+				put_user(0xef000000 | __NR_restart_syscall, &usp[1]);
+				/* ldr	pc, [sp], #12 */
+				put_user(0xe49df00c, &usp[2]);
+
+				regs->ARM_pc = regs->ARM_sp + 4;
+			}
+		}
+		if (regs->ARM_r0 == -ERESTARTNOHAND ||
+		    regs->ARM_r0 == -ERESTARTSYS ||
+		    regs->ARM_r0 == -ERESTARTNOINTR) {
+			regs->ARM_r0 = regs->ARM_ORIG_r0;
+			regs->ARM_pc -= 4;
+		}
 	}
 	if (single_stepping)
 		ptrace_set_bpt(current);

arch/arm/mach-integrator/cpu.c

@@ -148,9 +148,11 @@ static int integrator_set_policy(struct cpufreq_policy *policy)
 static struct cpufreq_policy integrator_policy = {
 	.cpu		= 0,
 	.policy		= CPUFREQ_POLICY_POWERSAVE,
-	.cpuinfo.max_cpu_freq	= 160000,
-	.cpuinfo.min_cpu_freq   = 12000,
-	.cpuinfo.transition_latency  = CPUFREQ_ETERNAL,
+	.cpuinfo	= {
+		.max_cpu_freq		= 160000,
+		.min_cpu_freq		= 12000,
+		.transition_latency	= CPUFREQ_ETERNAL,
+	},
 };
 
 static struct cpufreq_driver integrator_driver = {

arch/arm/mach-sa1100/cpu-sa1100.c

@@ -203,9 +203,11 @@ static int sa1100_setspeed(struct cpufreq_policy *policy)
 static struct cpufreq_policy sa1100_policy = {
 	.cpu		= 0,
 	.policy		= CPUFREQ_POLICY_POWERSAVE,
-	.cpuinfo.max_freq	= 287000,
-	.cpuinfo.min_freq	= 59000,
-	.cpuinfo.transition_latency	= CPUFREQ_ETERNAL,
+	.cpuinfo	= {
+		.max_freq		= 287000,
+		.min_freq		= 59000,
+		.transition_latency	= CPUFREQ_ETERNAL,
+	},
 };
 
 static struct cpufreq_driver sa1100_driver = {

arch/arm/mach-sa1100/cpu-sa1110.c

@@ -298,9 +298,11 @@ static int sa1110_setspeed(struct cpufreq_policy *policy)
 static struct cpufreq_policy sa1110_policy = {
 	.cpu		= 0,
 	.policy		= CPUFREQ_POLICY_POWERSAVE,
-	.cpuinfo.max_freq	= 287000,
-	.cpuinfo.min_freq	= 59000,
-	.cpuinfo.transition_latency	= CPUFREQ_ETERNAL,
+	.cpuinfo	= {
+		.max_freq		= 287000,
+		.min_freq		= 59000,
+		.transition_latency	= CPUFREQ_ETERNAL,
+	},
 };
 
 static struct cpufreq_driver sa1110_driver = {

arch/arm/vmlinux-armv.lds.in

@@ -26,6 +26,9 @@ SECTIONS
 		__setup_start = .;
 			*(.init.setup)
 		__setup_end = .;
+		__start___param = .;
+			*(__param)
+		__stop___param = .;
 		__initcall_start = .;
 			*(.initcall1.init)
 			*(.initcall2.init)

include/asm-arm/current.h

 #ifndef _ASMARM_CURRENT_H
 #define _ASMARM_CURRENT_H
 
-#include <asm/thread_info.h>
+#include <linux/thread_info.h>
 
 static inline struct task_struct *get_current(void) __attribute__ (( __const__ ));
 

include/asm-arm/proc-armv/locks.h

@@ -27,7 +27,7 @@
 "	blmi	" #fail				\
 	:					\
 	: "r" (ptr), "I" (1)			\
-	: "ip", "lr", "cc");			\
+	: "ip", "lr", "cc", "memory");		\
 	})
 
 #define __down_op_ret(ptr,fail)			\
@@ -48,7 +48,7 @@
 "	mov	%0, ip"				\
 	: "=&r" (ret)				\
 	: "r" (ptr), "I" (1)			\
-	: "ip", "lr", "cc");			\
+	: "ip", "lr", "cc", "memory");		\
 	ret;					\
 	})
 
@@ -94,7 +94,7 @@
 "	blne	" #fail				\
 	:					\
 	: "r" (ptr), "I" (RW_LOCK_BIAS)		\
-	: "ip", "lr", "cc");			\
+	: "ip", "lr", "cc", "memory");		\
 	})
 
 #define __up_op_write(ptr,wake)			\
@@ -112,7 +112,7 @@
 "	blcs	" #wake				\
 	:					\
 	: "r" (ptr), "I" (RW_LOCK_BIAS)		\
-	: "ip", "lr", "cc");			\
+	: "ip", "lr", "cc", "memory");		\
 	})
 
 #define __down_op_read(ptr,fail)		\

include/asm-arm/proc-armv/uaccess.h

@@ -37,7 +37,7 @@ static inline void set_fs (mm_segment_t fs)
 		: "cc"); \
 	(flag == 0); })
 
-#define __put_user_asm_byte(x,addr,err)				\
+#define __put_user_asm_byte(x,__pu_addr,err)			\
 	__asm__ __volatile__(					\
 	"1:	strbt	%1,[%2],#0\n"				\
 	"2:\n"							\
@@ -51,27 +51,26 @@ static inline void set_fs (mm_segment_t fs)
 	"	.long	1b, 3b\n"				\
 	"	.previous"					\
 	: "=r" (err)						\
-	: "r" (x), "r" (addr), "i" (-EFAULT), "0" (err))
+	: "r" (x), "r" (__pu_addr), "i" (-EFAULT), "0" (err)	\
+	: "cc")
 
 #ifndef __ARMEB__
-#define __put_user_asm_half(x,addr,err)				\
+#define __put_user_asm_half(x,__pu_addr,err)			\
 ({								\
 	unsigned long __temp = (unsigned long)(x);		\
-	unsigned long __ptr  = (unsigned long)(addr);		\
-	__put_user_asm_byte(__temp, __ptr, err);		\
-	__put_user_asm_byte(__temp >> 8, __ptr + 1, err);	\
+	__put_user_asm_byte(__temp, __pu_addr, err);		\
+	__put_user_asm_byte(__temp >> 8, __pu_addr + 1, err);	\
 })
 #else
-#define __put_user_asm_half(x,addr,err)				\
+#define __put_user_asm_half(x,__pu_addr,err)			\
 ({								\
 	unsigned long __temp = (unsigned long)(x);		\
-	unsigned long __ptr  = (unsigned long)(addr);		\
-	__put_user_asm_byte(__temp >> 8, __ptr, err);		\
-	__put_user_asm_byte(__temp, __ptr + 1, err);	\
+	__put_user_asm_byte(__temp >> 8, __pu_addr, err);	\
+	__put_user_asm_byte(__temp, __pu_addr + 1, err);	\
 })
 #endif
 
-#define __put_user_asm_word(x,addr,err)				\
+#define __put_user_asm_word(x,__pu_addr,err)			\
 	__asm__ __volatile__(					\
 	"1:	strt	%1,[%2],#0\n"				\
 	"2:\n"							\
@@ -85,7 +84,31 @@ static inline void set_fs (mm_segment_t fs)
 	"	.long	1b, 3b\n"				\
 	"	.previous"					\
 	: "=r" (err)						\
-	: "r" (x), "r" (addr), "i" (-EFAULT), "0" (err))
+	: "r" (x), "r" (__pu_addr), "i" (-EFAULT), "0" (err))
+
+#define __put_user_asm_dword(x,__pu_addr,err)			\
+({								\
+	unsigned long long __temp = (unsigned long long)x;	\
+	__asm__ __volatile__(					\
+	"1:	strt	%1, [%2], #0\n"				\
+	"2:	strt	%3, [%4], #0\n"				\
+	"3:\n"							\
+	"	.section .fixup,\"ax\"\n"			\
+	"	.align	2\n"					\
+	"4:	mov	%0, %5\n"				\
+	"	b	3b\n"					\
+	"	.previous\n"					\
+	"	.section __ex_table,\"a\"\n"			\
+	"	.align	3\n"					\
+	"	.long	1b, 4b\n"				\
+	"	.long	2b, 4b\n"				\
+	"	.previous"					\
+	: "=r" (err)						\
+	: "r" (__temp), "r" (__pu_addr),			\
+	  "r" (__temp >> 32), "r" (__pu_addr + 4),		\
+	  "i" (-EFAULT), "0" (err)				\
+	: "cc");						\
+})
 
 #define __get_user_asm_byte(x,addr,err)				\
 	__asm__ __volatile__(					\

include/asm-arm/thread_info.h

@@ -51,17 +51,21 @@ struct thread_info {
 	__u32			cpu;		/* cpu */
 	__u32			cpu_domain;	/* cpu domain */
 	struct cpu_context_save	cpu_context;	/* cpu context */
+	struct restart_block    restart_block;
 	union fp_state		fpstate;
 };
 
-#define INIT_THREAD_INFO(tsk)			\
-{						\
-	task:		&tsk,			\
-	exec_domain:	&default_exec_domain,	\
-	flags:		0,			\
-	preempt_count:	0,			\
-	addr_limit:	KERNEL_DS,		\
-	INIT_EXTRA_THREAD_INFO,			\
+#define INIT_THREAD_INFO(tsk)				\
+{							\
+	.task		= &tsk,				\
+	.exec_domain	= &default_exec_domain,		\
+	.flags		= 0,				\
+	.preempt_count	= 1,				\
+	.addr_limit	= KERNEL_DS,			\
+	.restart_block	= {				\
+		.fn	= do_no_restart_syscall,	\
+	},						\
+	INIT_EXTRA_THREAD_INFO,				\
 }
 
 #define init_thread_info	(init_thread_union.thread_info)

include/asm-arm/uaccess.h

@@ -81,7 +81,7 @@ extern int __get_user_bad(void);
 		const register typeof(*(p)) *__p asm("r0") = (p);	\
 		register typeof(*(p)) __r1 asm("r1");			\
 		register int __e asm("r0");				\
-		switch (sizeof(*(p))) {					\
+		switch (sizeof(*(__p))) {				\
 		case 1:							\
 			__get_user_x(__r1, __p, __e, 1, "lr");		\
 	       		break;						\
@@ -120,7 +120,7 @@ extern int __put_user_bad(void);
 		const register typeof(*(p)) __r1 asm("r1") = (x);	\
 		const register typeof(*(p)) *__p asm("r0") = (p);	\
 		register int __e asm("r0");				\
-		switch (sizeof(*(p))) {					\
+		switch (sizeof(*(__p))) {				\
 		case 1:							\
 			__put_user_x(__r1, __p, __e, 1, "r2", "lr");	\
 			break;						\
@@ -256,14 +256,15 @@ static inline long strnlen_user(const char *s, long n)
 #define __put_user_nocheck(x,ptr,size)					\
 ({									\
 	long __pu_err = 0;						\
-	__typeof__(*(ptr)) *__pu_addr = (ptr);				\
+	unsigned long __pu_addr = (unsigned long)(ptr);			\
 	__put_user_size((x),__pu_addr,(size),__pu_err);			\
 	__pu_err;							\
 })
 
 #define __put_user_nocheck_error(x,ptr,size,err)			\
 ({									\
-	__put_user_size((x),(ptr),(size),err);				\
+	unsigned long __pu_addr = (unsigned long)(ptr);			\
+	__put_user_size((x),__pu_addr,(size),err);			\
 	(void) 0;							\
 })
 
@@ -273,6 +274,7 @@ do {									\
 	case 1:	__get_user_asm_byte(x,ptr,retval);	break;		\
 	case 2:	__get_user_asm_half(x,ptr,retval);	break;		\
 	case 4:	__get_user_asm_word(x,ptr,retval);	break;		\
+	case 8:	__get_user_asm_dword(x,ptr,retval);	break;		\
 	default: (x) = __get_user_bad();				\
 	}								\
 } while (0)
@@ -283,6 +285,7 @@ do {									\
 	case 1: __put_user_asm_byte(x,ptr,retval);	break;		\
 	case 2: __put_user_asm_half(x,ptr,retval);	break;		\
 	case 4: __put_user_asm_word(x,ptr,retval);	break;		\
+	case 8:	__put_user_asm_dword(x,ptr,retval);	break;		\
 	default: __put_user_bad();					\
 	}								\
 } while (0)

include/asm-arm/unistd.h

@@ -25,6 +25,7 @@
  * This file contains the system call numbers.
  */
 
+#define __NR_restart_syscall		(__NR_SYSCALL_BASE+  0)
 #define __NR_exit			(__NR_SYSCALL_BASE+  1)
 #define __NR_fork			(__NR_SYSCALL_BASE+  2)
 #define __NR_read			(__NR_SYSCALL_BASE+  3)