Merge tag 'cris-for-3.14' of git://jni.nu/cris

Pull cris changes from Jesper Nilsson:
 "Mostly removal of deprecated or old code, but also a long promised
  update of the CRIS syscalls"

* tag 'cris-for-3.14' of git://jni.nu/cris:
  Drop code for CRISv10 CPU simulator
  Cleanup whitespace, remove old author tag
  CRIS: Add missing syscalls
  cris: sync_serial: remove interruptible_sleep_on
  cris: remove deprecated IRQF_DISABLED

arch/cris/Kconfig

@@ -122,12 +122,6 @@ config ETRAX100LX_V2
 	help
 	  Support version 2 of the ETRAX 100LX.
 
-config SVINTO_SIM
-	bool "ETRAX-100LX-for-xsim-simulator"
-	select ARCH_USES_GETTIMEOFFSET
-	help
-	  Support the xsim ETRAX Simulator.
-
 config ETRAXFS
 	bool "ETRAX-FS-V32"
 	help

arch/cris/arch-v10/drivers/gpio.c

@@ -838,13 +838,13 @@ static int __init gpio_init(void)
 	 * in some tests.
 	 */
 	res = request_irq(TIMER0_IRQ_NBR, gpio_poll_timer_interrupt,
-		IRQF_SHARED | IRQF_DISABLED, "gpio poll", gpio_name);
+		IRQF_SHARED, "gpio poll", gpio_name);
 	if (res) {
 		printk(KERN_CRIT "err: timer0 irq for gpio\n");
 		return res;
 	}
 	res = request_irq(PA_IRQ_NBR, gpio_interrupt,
-		IRQF_SHARED | IRQF_DISABLED, "gpio PA", gpio_name);
+		IRQF_SHARED, "gpio PA", gpio_name);
 	if (res)
 		printk(KERN_CRIT "err: PA irq for gpio\n");
 

arch/cris/arch-v10/drivers/sync_serial.c

@@ -22,6 +22,7 @@
 #include <linux/init.h>
 #include <linux/mutex.h>
 #include <linux/timer.h>
+#include <linux/wait.h>
 #include <asm/irq.h>
 #include <asm/dma.h>
 #include <asm/io.h>
@@ -580,7 +581,7 @@ static int sync_serial_open(struct inode *inode, struct file *file)
 			if (port == &ports[0]) {
 				if (request_irq(8,
 						manual_interrupt,
-						IRQF_SHARED | IRQF_DISABLED,
+						IRQF_SHARED,
 						"synchronous serial manual irq",
 						&ports[0])) {
 					printk(KERN_CRIT "Can't alloc "
@@ -590,7 +591,7 @@ static int sync_serial_open(struct inode *inode, struct file *file)
 			} else if (port == &ports[1]) {
 				if (request_irq(8,
 						manual_interrupt,
-						IRQF_SHARED | IRQF_DISABLED,
+						IRQF_SHARED,
 						"synchronous serial manual irq",
 						&ports[1])) {
 					printk(KERN_CRIT "Can't alloc "
@@ -1136,7 +1137,8 @@ static ssize_t sync_serial_read(struct file *file, char *buf,
 		if (file->f_flags & O_NONBLOCK)
 			return -EAGAIN;
 
-		interruptible_sleep_on(&port->in_wait_q);
+		wait_event_interruptible(port->in_wait_q,
+					 !(start == end && !port->full));
 		if (signal_pending(current))
 			return -EINTR;
 

arch/cris/arch-v10/kernel/Makefile

-# $Id: Makefile,v 1.6 2004/12/13 12:21:51 starvik Exp $
 #
 # Makefile for the linux kernel.
 #

arch/cris/arch-v10/kernel/debugport.c

@@ -19,7 +19,6 @@
 #include <linux/delay.h>
 #include <linux/tty.h>
 #include <arch/svinto.h>
-#include <asm/io.h>             /* Get SIMCOUT. */
 
 extern void reset_watchdog(void);
 
@@ -318,12 +317,6 @@ console_write(struct console *co, const char *buf, unsigned int len)
 	if (!port)
 		return;
 
-#ifdef CONFIG_SVINTO_SIM
-	/* no use to simulate the serial debug output */
-	SIMCOUT(buf, len);
-	return;
-#endif
-
         console_write_direct(co, buf, len);
 }
 

arch/cris/arch-v10/kernel/entry.S

@@ -13,8 +13,8 @@
  * after a timer-interrupt and after each system call.
  *
  * Stack layout in 'ret_from_system_call':
- * 	ptrace needs to have all regs on the stack.
- *	if the order here is changed, it needs to be 
+ *	ptrace needs to have all regs on the stack.
+ *	if the order here is changed, it needs to be
  *	updated in fork.c:copy_process, signal.c:do_signal,
  *	ptrace.c and ptrace.h
  *
@@ -31,7 +31,7 @@
 #include <asm/pgtable.h>
 
 	;; functions exported from this file
-	
+
 	.globl system_call
 	.globl ret_from_intr
 	.globl ret_from_fork
@@ -46,10 +46,10 @@
 	.globl do_sigtrap
 	.globl gdb_handle_breakpoint
 	.globl sys_call_table
-	
+
 	;; below are various parts of system_call which are not in the fast-path
-	
-#ifdef CONFIG_PREEMPT	
+
+#ifdef CONFIG_PREEMPT
 	; Check if preemptive kernel scheduling should be done
 _resume_kernel:
 	di
@@ -74,7 +74,7 @@ _need_resched:
 	nop
 #else
 #define _resume_kernel _Rexit
-#endif	
+#endif
 
 	; Called at exit from fork. schedule_tail must be called to drop
 	; spinlock if CONFIG_PREEMPT
@@ -91,16 +91,16 @@ ret_from_kernel_thread:
 	ba  ret_from_sys_call
 
 ret_from_intr:
-	;; check for resched if preemptive kernel or if we're going back to user-mode 
+	;; check for resched if preemptive kernel or if we're going back to user-mode
 	;; this test matches the user_regs(regs) macro
 	;; we cannot simply test $dccr, because that does not necessarily
 	;; reflect what mode we'll return into.
-	
+
 	move.d	[$sp + PT_dccr], $r0; regs->dccr
 	btstq	8, $r0		; U-flag
 	bpl     _resume_kernel
-	; Note that di below is in delay slot 
-	
+	; Note that di below is in delay slot
+
 _resume_userspace:
 	di			; so need_resched and sigpending don't change
 
@@ -113,7 +113,7 @@ _resume_userspace:
 	nop
 	ba	_Rexit
 	nop
-	
+
 	;; The system_call is called by a BREAK instruction, which works like
 	;; an interrupt call but it stores the return PC in BRP instead of IRP.
 	;; Since we dont really want to have two epilogues (one for system calls
@@ -123,7 +123,7 @@ _resume_userspace:
 	;;
 	;; Since we can't have system calls inside interrupts, it should not matter
 	;; that we don't stack IRP.
-	;; 
+	;;
 	;; In r9 we have the wanted syscall number. Arguments come in r10,r11,r12,r13,mof,srp
 	;;
 	;; This function looks on the _surface_ like spaghetti programming, but it's
@@ -140,7 +140,7 @@ system_call:
 	movem	$r13, [$sp]	; push r0-r13
 	push	$r10		; push orig_r10
 	clear.d [$sp=$sp-4]	; frametype == 0, normal stackframe
-	
+
 	movs.w	-ENOSYS, $r0
 	move.d	$r0, [$sp+PT_r10]	; put the default return value in r10 in the frame
 
@@ -148,17 +148,17 @@ system_call:
 
 	movs.w	-8192, $r0	; THREAD_SIZE == 8192
 	and.d	$sp, $r0
-	
+
 	move.d	[$r0+TI_flags], $r0
 	btstq   TIF_SYSCALL_TRACE, $r0
 	bmi	_syscall_trace_entry
-	nop	
+	nop
 
-_syscall_traced:	
+_syscall_traced:
 
 	;; check for sanity in the requested syscall number
-	
-	cmpu.w	NR_syscalls, $r9	
+
+	cmpu.w	NR_syscalls, $r9
 	bcc	ret_from_sys_call
 	lslq	2, $r9		;  multiply by 4, in the delay slot
 
@@ -166,28 +166,28 @@ _syscall_traced:
 	;; of the register structure itself. some syscalls need this.
 
 	push	$sp
-	
+
 	;; the parameter carrying registers r10, r11, r12 and 13 are intact.
-	;; the fifth and sixth parameters (if any) was in mof and srp 
+	;; the fifth and sixth parameters (if any) was in mof and srp
 	;; respectively, and we need to put them on the stack.
 
 	push	$srp
 	push	$mof
-	
+
 	jsr	[$r9+sys_call_table]	; actually do the system call
 	addq	3*4, $sp		; pop the mof, srp and regs parameters
 	move.d	$r10, [$sp+PT_r10]	; save the return value
 
 	moveq	1, $r9		; "parameter" to ret_from_sys_call to show it was a sys call
-	
+
 	;; fall through into ret_from_sys_call to return
-	
+
 ret_from_sys_call:
 	;; r9 is a parameter - if >=1 we came from a syscall, if 0, from an irq
-		
+
 	;; get the current task-struct pointer (see top for defs)
 
-	movs.w	-8192, $r0	; THREAD_SIZE == 8192 
+	movs.w	-8192, $r0	; THREAD_SIZE == 8192
 	and.d	$sp, $r0
 
 	di			; make sure need_resched and sigpending don't change
@@ -202,7 +202,7 @@ _Rexit:
 	bne	_RBFexit	; was not CRIS_FRAME_NORMAL, handle otherwise
 	addq	4, $sp		; skip orig_r10, in delayslot
 	movem	[$sp+], $r13	; registers r0-r13
-	pop	$mof		; multiply overflow register 
+	pop	$mof		; multiply overflow register
 	pop	$dccr		; condition codes
 	pop	$srp		; subroutine return pointer
 	;; now we have a 4-word SBFS frame which we do not want to restore
@@ -216,14 +216,14 @@ _Rexit:
 
 _RBFexit:
 	movem	[$sp+], $r13	; registers r0-r13, in delay slot
-	pop	$mof		; multiply overflow register 
+	pop	$mof		; multiply overflow register
 	pop	$dccr		; condition codes
 	pop	$srp		; subroutine return pointer
 	rbf	[$sp+]		; return by popping the CPU status
 
 	;; We get here after doing a syscall if extra work might need to be done
 	;; perform syscall exit tracing if needed
-	
+
 _syscall_exit_work:
 	;; $r0 contains current at this point and irq's are disabled
 
@@ -231,22 +231,22 @@ _syscall_exit_work:
 	btstq	TIF_SYSCALL_TRACE, $r1
 	bpl	_work_pending
 	nop
-	
+
 	ei
 
 	move.d	$r9, $r1	; preserve r9
 	jsr	do_syscall_trace
 	move.d	$r1, $r9
-	
+
 	ba	_resume_userspace
 	nop
-	
+
 _work_pending:
 	move.d  [$r0+TI_flags], $r1
 	btstq   TIF_NEED_RESCHED, $r1
 	bpl	_work_notifysig	; was neither trace nor sched, must be signal/notify
 	nop
-	
+
 _work_resched:
 	move.d	$r9, $r1	; preserve r9
 	jsr	schedule
@@ -268,17 +268,17 @@ _work_notifysig:
 	move.d	$sp, $r11	; the regs param
 	move.d  $r1, $r12	; the thread_info_flags parameter
 	jsr	do_notify_resume
-	
+
 	ba _Rexit
 	nop
 
 	;; We get here as a sidetrack when we've entered a syscall with the
 	;; trace-bit set. We need to call do_syscall_trace and then continue
 	;; with the call.
-	
+
 _syscall_trace_entry:
 	;; PT_r10 in the frame contains -ENOSYS as required, at this point
-	
+
 	jsr	do_syscall_trace
 
 	;; now re-enter the syscall code to do the syscall itself
@@ -292,10 +292,10 @@ _syscall_trace_entry:
 	move.d	[$sp+PT_r13],      $r13
 	move	[$sp+PT_mof],      $mof
 	move	[$sp+PT_srp],      $srp
-	
+
 	ba	_syscall_traced
 	nop
-	
+
 	;; resume performs the actual task-switching, by switching stack pointers
 	;; input arguments: r10 = prev, r11 = next, r12 = thread offset in task struct
 	;; returns old current in r10
@@ -303,29 +303,29 @@ _syscall_trace_entry:
 	;; TODO:  see the i386 version. The switch_to which calls resume in our version
 	;;        could really be an inline asm of this.
 
-resume:	
-	push	$srp		         ; we keep the old/new PC on the stack 
+resume:
+	push	$srp		         ; we keep the old/new PC on the stack
 	add.d	$r12, $r10		 ; r10 = current tasks tss
 	move	$dccr, [$r10+THREAD_dccr]; save irq enable state
 	di
 
 	move	$usp, [$r10+ THREAD_usp] ; save user-mode stackpointer
-	
+
 	;; See copy_thread for the reason why register R9 is saved.
 	subq	10*4, $sp
 	movem	$r9, [$sp]		 ; save non-scratch registers and R9.
-	
+
 	move.d	$sp, [$r10+THREAD_ksp]	 ; save the kernel stack pointer for the old task
 	move.d	$sp, $r10		 ; return last running task in r10
 	and.d   -8192, $r10	         ; get thread_info from stackpointer
-	move.d  [$r10+TI_task], $r10     ; get task  
+	move.d  [$r10+TI_task], $r10     ; get task
 	add.d	$r12, $r11		 ; find the new tasks tss
 	move.d	[$r11+THREAD_ksp], $sp	 ; switch into the new stackframe by restoring kernel sp
 
 	movem	[$sp+], $r9		 ; restore non-scratch registers and R9.
 
 	move	[$r11+THREAD_usp], $usp ; restore user-mode stackpointer
-	
+
 	move	[$r11+THREAD_dccr], $dccr ; restore irq enable status
 	jump	[$sp+]		         ; restore PC
 
@@ -401,7 +401,7 @@ mmu_bus_fault:
 	push	$r10		; frametype == 1, BUSFAULT frame type
 
 	move.d	$sp, $r10	; pt_regs argument to handle_mmu_bus_fault
-		
+
 	jsr	handle_mmu_bus_fault  ; in arch/cris/arch-v10/mm/fault.c
 
 	;; now we need to return through the normal path, we cannot just
@@ -410,10 +410,10 @@ mmu_bus_fault:
 	;; whatever.
 
 	moveq	0, $r9		; busfault is equivalent to an irq
-		
+
 	ba	ret_from_intr
 	nop
-		
+
 	;; special handlers for breakpoint and NMI
 hwbreakpoint:
 	push	$dccr
@@ -429,7 +429,7 @@ hwbreakpoint:
 	pop	$dccr
 	retb
 	nop
-	
+
 IRQ1_interrupt:
 	;; this prologue MUST match the one in irq.h and the struct in ptregs.h!!!
 	move	$brp,[$sp=$sp-16]; instruction pointer and room for a fake SBFS frame
@@ -457,7 +457,7 @@ IRQ1_interrupt:
 	ba	_Rexit		; Return the standard way
 	nop
 wdog:
-#if defined(CONFIG_ETRAX_WATCHDOG) && !defined(CONFIG_SVINTO_SIM)
+#if defined(CONFIG_ETRAX_WATCHDOG)
 ;; Check if we're waiting for reset to happen, as signalled by
 ;; hard_reset_now setting cause_of_death to a magic value.  If so, just
 ;; get stuck until reset happens.
@@ -500,7 +500,7 @@ Watchdog_bite:
 	move.d	$r10, [$r11]
 
 #endif
-	
+
 ;; Note that we don't do "setf m" here (or after two necessary NOPs),
 ;; since *not* doing that saves us from re-entrancy checks.  We don't want
 ;; to get here again due to possible subsequent NMIs; we want the watchdog
@@ -523,16 +523,16 @@ _watchdogmsg:
 	.ascii	"Oops: bitten by watchdog\n\0"
 	.previous
 
-#endif /* CONFIG_ETRAX_WATCHDOG and not CONFIG_SVINTO_SIM */
+#endif /* CONFIG_ETRAX_WATCHDOG */
 
-spurious_interrupt:	
+spurious_interrupt:
 	di
 	jump hard_reset_now
 
 	;; this handles the case when multiple interrupts arrive at the same time
 	;; we jump to the first set interrupt bit in a priority fashion
 	;; the hardware will call the unserved interrupts after the handler finishes
-	
+
 multiple_interrupt:
 	;; this prologue MUST match the one in irq.h and the struct in ptregs.h!!!
 	move	$irp,[$sp=$sp-16]; instruction pointer and room for a fake SBFS frame
@@ -551,7 +551,7 @@ multiple_interrupt:
 	jump    ret_from_intr
 
 do_sigtrap:
-	;; 
+	;;
 	;; SIGTRAP the process that executed the break instruction.
 	;; Make a frame that Rexit in entry.S expects.
 	;;
@@ -568,30 +568,30 @@ do_sigtrap:
 	movs.w	-8192,$r9		; THREAD_SIZE == 8192
 	and.d	$sp, $r9
 	move.d  [$r9+TI_task], $r10
-	move.d  [$r10+TASK_pid], $r10	; current->pid as arg1. 
+	move.d  [$r10+TASK_pid], $r10	; current->pid as arg1.
 	moveq	5, $r11			; SIGTRAP as arg2.
-	jsr	sys_kill       
+	jsr	sys_kill
 	jump	ret_from_intr		; Use the return routine for interrupts.
 
-gdb_handle_breakpoint:	
+gdb_handle_breakpoint:
 	push	$dccr
 	push	$r0
 #ifdef CONFIG_ETRAX_KGDB
-	move	$dccr, $r0		; U-flag not affected by previous insns. 
+	move	$dccr, $r0		; U-flag not affected by previous insns.
 	btstq	8, $r0			; Test the U-flag.
-	bmi	_ugdb_handle_breakpoint	; Go to user mode debugging. 
-	nop				; Empty delay slot (cannot pop r0 here). 
+	bmi	_ugdb_handle_breakpoint	; Go to user mode debugging.
+	nop				; Empty delay slot (cannot pop r0 here).
 	pop	$r0			; Restore r0.
-	ba	kgdb_handle_breakpoint	; Go to kernel debugging. 
+	ba	kgdb_handle_breakpoint	; Go to kernel debugging.
 	pop	$dccr			; Restore dccr in delay slot.
 #endif
-	
-_ugdb_handle_breakpoint:	
+
+_ugdb_handle_breakpoint:
 	move	$brp, $r0		; Use r0 temporarily for calculation.
 	subq	2, $r0			; Set to address of previous instruction.
 	move	$r0, $brp
-	pop	$r0			; Restore r0. 
-	ba	do_sigtrap		; SIGTRAP the offending process. 
+	pop	$r0			; Restore r0.
+	ba	do_sigtrap		; SIGTRAP the offending process.
 	pop	$dccr			; Restore dccr in delay slot.
 
 	.data
@@ -602,7 +602,7 @@ hw_bp_trig_ptr:
 	.dword hw_bp_trigs
 
 	.section .rodata,"a"
-sys_call_table:	
+sys_call_table:
 	.long sys_restart_syscall	/* 0 - old "setup()" system call, used for restarting */
 	.long sys_exit
 	.long sys_fork
@@ -713,7 +713,7 @@ sys_call_table:
 	.long sys_newlstat
 	.long sys_newfstat
 	.long sys_ni_syscall	/* old sys_uname holder */
-	.long sys_ni_syscall	/* sys_iopl in i386 */
+	.long sys_ni_syscall	/* 110 */ /* sys_iopl in i386 */
 	.long sys_vhangup
 	.long sys_ni_syscall	/* old "idle" system call */
 	.long sys_ni_syscall	/* vm86old in i386 */
@@ -730,7 +730,7 @@ sys_call_table:
 	.long sys_adjtimex
 	.long sys_mprotect	/* 125 */
 	.long sys_sigprocmask
-	.long sys_ni_syscall	/* old "create_module" */ 
+	.long sys_ni_syscall	/* old "create_module" */
 	.long sys_init_module
 	.long sys_delete_module
 	.long sys_ni_syscall	/* 130:	old "get_kernel_syms" */
@@ -795,7 +795,7 @@ sys_call_table:
 	.long sys_ni_syscall	/* streams2 */
 	.long sys_vfork		/* 190 */
 	.long sys_getrlimit
-	.long sys_mmap2
+	.long sys_mmap2		/* mmap_pgoff */
 	.long sys_truncate64
 	.long sys_ftruncate64
 	.long sys_stat64	/* 195 */
@@ -861,21 +861,21 @@ sys_call_table:
 	.long sys_epoll_ctl	/* 255 */
 	.long sys_epoll_wait
 	.long sys_remap_file_pages
- 	.long sys_set_tid_address
- 	.long sys_timer_create
- 	.long sys_timer_settime		/* 260 */
- 	.long sys_timer_gettime
- 	.long sys_timer_getoverrun
- 	.long sys_timer_delete
- 	.long sys_clock_settime
- 	.long sys_clock_gettime		/* 265 */
- 	.long sys_clock_getres
- 	.long sys_clock_nanosleep
+	.long sys_set_tid_address
+	.long sys_timer_create
+	.long sys_timer_settime		/* 260 */
+	.long sys_timer_gettime
+	.long sys_timer_getoverrun
+	.long sys_timer_delete
+	.long sys_clock_settime
+	.long sys_clock_gettime		/* 265 */
+	.long sys_clock_getres
+	.long sys_clock_nanosleep
 	.long sys_statfs64
-	.long sys_fstatfs64	
-	.long sys_tgkill	/* 270 */
+	.long sys_fstatfs64
+	.long sys_tgkill		/* 270 */
 	.long sys_utimes
- 	.long sys_fadvise64_64
+	.long sys_fadvise64_64
 	.long sys_ni_syscall	/* sys_vserver */
 	.long sys_ni_syscall	/* sys_mbind */
 	.long sys_ni_syscall	/* 275 sys_get_mempolicy */
@@ -886,7 +886,7 @@ sys_call_table:
 	.long sys_mq_timedreceive	/* 280 */
 	.long sys_mq_notify
 	.long sys_mq_getsetattr
-	.long sys_ni_syscall		/* reserved for kexec */
+	.long sys_ni_syscall
 	.long sys_waitid
 	.long sys_ni_syscall		/* 285 */ /* available */
 	.long sys_add_key
@@ -939,6 +939,22 @@ sys_call_table:
 	.long sys_preadv
 	.long sys_pwritev
 	.long sys_setns			/* 335 */
+	.long sys_name_to_handle_at
+	.long sys_open_by_handle_at
+	.long sys_rt_tgsigqueueinfo
+	.long sys_perf_event_open
+	.long sys_recvmmsg		/* 340 */
+	.long sys_accept4
+	.long sys_fanotify_init
+	.long sys_fanotify_mark
+	.long sys_prlimit64
+	.long sys_clock_adjtime		/* 345 */
+	.long sys_syncfs
+	.long sys_sendmmsg
+	.long sys_process_vm_readv
+	.long sys_process_vm_writev
+	.long sys_kcmp			/* 350 */
+	.long sys_finit_module
 
         /*
          * NOTE!! This doesn't have to be exact - we just have
@@ -950,4 +966,4 @@ sys_call_table:
 	.rept NR_syscalls-(.-sys_call_table)/4
 		.long sys_ni_syscall
 	.endr
-	
+

arch/cris/arch-v10/kernel/head.S

 /*
  * Head of the kernel - alter with care
  *
- * Copyright (C) 2000, 2001 Axis Communications AB
+ * Copyright (C) 2000, 2001, 2010 Axis Communications AB
  *
- * Authors:	Bjorn Wesen (bjornw@axis.com)
- * 
  */
-	
+
 #define ASSEMBLER_MACROS_ONLY
 /* The IO_* macros use the ## token concatenation operator, so
    -traditional must not be used when assembling this file.  */
@@ -18,15 +16,15 @@
 
 #define START_ETHERNET_CLOCK IO_STATE(R_NETWORK_GEN_CONFIG, enable, on) |\
                              IO_STATE(R_NETWORK_GEN_CONFIG, phy, mii_clk)
-				
+
 	;; exported symbols
-		
+
 	.globl	etrax_irv
 	.globl	romfs_start
 	.globl	romfs_length
 	.globl	romfs_in_flash
 	.globl  swapper_pg_dir
-					
+
 	.text
 
 	;; This is the entry point of the kernel. We are in supervisor mode.
@@ -35,10 +33,10 @@
 	;; put a nop (2 bytes) here first so we dont accidentally skip the di
 	;;
 	;; NOTICE! The registers r8 and r9 are used as parameters carrying
-	;; information from the decompressor (if the kernel was compressed). 
+	;; information from the decompressor (if the kernel was compressed).
 	;; They should not be used in the code below until read.
-	
-	nop	
+
+	nop
 	di
 
 	;; First setup the kseg_c mapping from where the kernel is linked
@@ -58,19 +56,19 @@
 
 #ifdef CONFIG_CRIS_LOW_MAP
 	; kseg mappings, temporary map of 0xc0->0x40
- 	move.d	  IO_FIELD (R_MMU_KBASE_HI, base_c, 4)		\
+	move.d	  IO_FIELD (R_MMU_KBASE_HI, base_c, 4)		\
 		| IO_FIELD (R_MMU_KBASE_HI, base_b, 0xb)	\
 		| IO_FIELD (R_MMU_KBASE_HI, base_9, 9)		\
 		| IO_FIELD (R_MMU_KBASE_HI, base_8, 8), $r0
 	move.d	$r0, [R_MMU_KBASE_HI]
 
-	; temporary map of 0x40->0x40 and 0x60->0x40 
- 	move.d	  IO_FIELD (R_MMU_KBASE_LO, base_6, 4)		\
+	; temporary map of 0x40->0x40 and 0x60->0x40
+	move.d	  IO_FIELD (R_MMU_KBASE_LO, base_6, 4)		\
 		| IO_FIELD (R_MMU_KBASE_LO, base_4, 4), $r0
 	move.d	$r0, [R_MMU_KBASE_LO]
 
 	; mmu enable, segs e,c,b,a,6,5,4,0 segment mapped
- 	move.d	  IO_STATE (R_MMU_CONFIG, mmu_enable, enable)	\
+	move.d	  IO_STATE (R_MMU_CONFIG, mmu_enable, enable)	\
 		| IO_STATE (R_MMU_CONFIG, inv_excp, enable)	\
 		| IO_STATE (R_MMU_CONFIG, acc_excp, enable)	\
 		| IO_STATE (R_MMU_CONFIG, we_excp, enable)	\
@@ -93,17 +91,17 @@
 	move.d	$r0, [R_MMU_CONFIG]
 #else
 	; kseg mappings
- 	move.d	  IO_FIELD (R_MMU_KBASE_HI, base_e, 8)		\
+	move.d	  IO_FIELD (R_MMU_KBASE_HI, base_e, 8)		\
 		| IO_FIELD (R_MMU_KBASE_HI, base_c, 4)		\
 		| IO_FIELD (R_MMU_KBASE_HI, base_b, 0xb), $r0
 	move.d	$r0, [R_MMU_KBASE_HI]
 
-	; temporary map of 0x40->0x40 and 0x00->0x00 
+	; temporary map of 0x40->0x40 and 0x00->0x00
 	move.d	  IO_FIELD (R_MMU_KBASE_LO, base_4, 4), $r0
 	move.d	$r0, [R_MMU_KBASE_LO]
 
 	; mmu enable, segs f,e,c,b,4,0 segment mapped
- 	move.d	  IO_STATE (R_MMU_CONFIG, mmu_enable, enable)	\
+	move.d	  IO_STATE (R_MMU_CONFIG, mmu_enable, enable)	\
 		| IO_STATE (R_MMU_CONFIG, inv_excp, enable)	\
 		| IO_STATE (R_MMU_CONFIG, acc_excp, enable)	\
 		| IO_STATE (R_MMU_CONFIG, we_excp, enable)	\
@@ -141,12 +139,12 @@
 	;;
 	;; In both cases, we start in un-cached mode, and need to jump into a
 	;; cached PC after we're done fiddling around with the segments.
-	;; 
+	;;
 	;; arch/etrax100/etrax100.ld sets some symbols that define the start
 	;; and end of each segment.
 
 	;; Check if we start from DRAM or FLASH by testing PC
-	
+
 	move.d	$pc,$r0
 	and.d	0x7fffffff,$r0	; get rid of the non-cache bit
 	cmp.d	0x10000,$r0	; arbitrary... just something above this code
@@ -163,30 +161,28 @@ _inflash0:
 	;; after init.
 	.section ".init.text", "ax"
 _inflash:
-#ifdef CONFIG_ETRAX_ETHERNET	
+#ifdef CONFIG_ETRAX_ETHERNET
 	;; Start MII clock to make sure it is running when tranceiver is reset
 	move.d START_ETHERNET_CLOCK, $r0
 	move.d $r0, [R_NETWORK_GEN_CONFIG]
 #endif
 
 	;; Set up waitstates etc according to kernel configuration.
-#ifndef CONFIG_SVINTO_SIM
 	move.d   CONFIG_ETRAX_DEF_R_WAITSTATES, $r0
 	move.d   $r0, [R_WAITSTATES]
 
 	move.d   CONFIG_ETRAX_DEF_R_BUS_CONFIG, $r0
 	move.d   $r0, [R_BUS_CONFIG]
-#endif
 
 	;; We need to initialze DRAM registers before we start using the DRAM
 
 	cmp.d	RAM_INIT_MAGIC, $r8	; Already initialized?
 	beq	_dram_init_finished
 	nop
-	
+
 #include "../lib/dram_init.S"
 
-_dram_init_finished:		
+_dram_init_finished:
 	;; Copy text+data to DRAM
 	;; This is fragile - the calculation of r4 as the image size depends
 	;; on that the labels below actually are the first and last positions
@@ -198,7 +194,7 @@ _dram_init_finished:
 	;; between the physical start of the flash and the flash-image start,
 	;; and when run with compression, the kernel is actually unpacked to
 	;; DRAM and we never get here in the first place :))
-	
+
 	moveq	0, $r0			; source
 	move.d	text_start, $r1		; destination
 	move.d	__vmlinux_end, $r2	; end destination
@@ -229,10 +225,10 @@ _dram_init_finished:
 	add.d   0xf0000000, $r4	; add flash start in virtual memory (cached)
 #endif
 	move.d	$r4, [romfs_start]
-1:	
+1:
 	moveq	1, $r0
 	move.d	$r0, [romfs_in_flash]
-		
+
 	jump	_start_it	; enter code, cached this time
 
 _inram:
@@ -241,7 +237,7 @@ _inram:
 
 	moveq	0, $r0
 	move.d	$r0, [romfs_length] ; default if there is no cramfs
-	
+
 	;; The kernel could have been unpacked to DRAM by the loader, but
 	;; the cramfs image could still be in the Flash directly after the
 	;; compressed kernel image. The loader passes the address of the
@@ -251,7 +247,7 @@ _inram:
 	;; (Notice that if this is not booted from the loader, r9 will be
 	;;  garbage but we do sanity checks on it, the chance that it points
 	;;  to a cramfs magic is small.. )
-	
+
 	cmp.d	0x0ffffff8, $r9
 	bhs	_no_romfs_in_flash	; r9 points outside the flash area
 	nop
@@ -274,7 +270,7 @@ _inram:
 	jump	_start_it	; enter code, cached this time
 
 _no_romfs_in_flash:
-	
+
 	;; Check if there is a cramfs (magic value).
 	;; Notice that we check for cramfs magic value - which is
 	;; the "rom fs" we'll possibly use in 2.4 if not JFFS (which does
@@ -286,8 +282,8 @@ _no_romfs_in_flash:
 	bne	2f
 	nop
 
-	;; Ok. What is its size ? 
-	
+	;; Ok. What is its size ?
+
 	move.d	[$r0 + 4], $r2	; cramfs_super.size (again, no need to swapwb)
 
 	;; We want to copy it to the end of the BSS
@@ -303,7 +299,7 @@ _no_romfs_in_flash:
 
 	add.d	$r2, $r0
 	add.d	$r2, $r1
-		
+
 	;; Go ahead. Make my loop.
 
 	lsrq	1, $r2		; size is in bytes, we copy words
@@ -314,14 +310,14 @@ _no_romfs_in_flash:
 	bne	1b
 	nop
 
-2:		
+2:
 	;; Dont worry that the BSS is tainted. It will be cleared later.
 
 	moveq	0, $r0
 	move.d	$r0, [romfs_in_flash]
 
 	jump	_start_it	; better skip the additional cramfs check below
-	
+
 _start_it:
 
 	;; Check if kernel command line is supplied
@@ -348,7 +344,7 @@ no_command_line:
 	move.d	ibr_start,$r0	; this symbol is set by the linker script 
 	move	$r0,$ibr
 	move.d	$r0,[etrax_irv]	; set the interrupt base register and pointer
-	
+
 	;; Clear BSS region, from _bss_start to _end
 
 	move.d	__bss_start, $r0
@@ -357,7 +353,7 @@ no_command_line:
 	cmp.d	$r1, $r0
 	blo	1b
 	nop
-	
+
 #ifdef CONFIG_BLK_DEV_ETRAXIDE
 	;; disable ATA before enabling it in genconfig below
 	moveq	0,$r0
@@ -380,7 +376,7 @@ no_command_line:
 
 #ifdef CONFIG_JULIETTE
 	;; configure external DMA channel 0 before enabling it in genconfig
-	
+
 	moveq	0,$r0
 	move.d	$r0,[R_EXT_DMA_0_ADDR]
 	; cnt enable, word size, output, stop, size 0
@@ -395,7 +391,7 @@ no_command_line:
 	move.d	$r0,[R_EXT_DMA_0_CMD]
 
 	;; reset dma4 and wait for completion
-	
+
 	moveq	IO_STATE (R_DMA_CH4_CMD, cmd, reset),$r0
 	move.b	$r0,[R_DMA_CH4_CMD]
 1:	move.b	[R_DMA_CH4_CMD],$r0
@@ -405,7 +401,7 @@ no_command_line:
 	nop
 
 	;; reset dma5 and wait for completion
-	
+
 	moveq	IO_STATE (R_DMA_CH5_CMD, cmd, reset),$r0
 	move.b	$r0,[R_DMA_CH5_CMD]
 1:	move.b	[R_DMA_CH5_CMD],$r0
@@ -413,8 +409,8 @@ no_command_line:
 	cmp.b	IO_STATE (R_DMA_CH5_CMD, cmd, reset),$r0
 	beq	1b
 	nop
-#endif	
-			
+#endif
+
 	;; Etrax product HW genconfig setup
 
 	moveq	0,$r0
@@ -468,7 +464,6 @@ no_command_line:
 
 	move.d	$r0,[genconfig_shadow] ; init a shadow register of R_GEN_CONFIG
 
-#ifndef CONFIG_SVINTO_SIM
 	move.d	$r0,[R_GEN_CONFIG]
 
 #if 0
@@ -486,7 +481,7 @@ no_command_line:
 	beq	1b
 	nop
 #endif
-	
+
 	moveq	IO_STATE (R_DMA_CH8_CMD, cmd, reset),$r0
 	move.b	$r0,[R_DMA_CH8_CMD]	; reset (ser1 dma out)
 	move.b	$r0,[R_DMA_CH9_CMD]	; reset (ser1 dma in)
@@ -503,7 +498,7 @@ no_command_line:
 
 	;; setup port PA and PB default initial directions and data
 	;; including their shadow registers
-		
+
 	move.b	CONFIG_ETRAX_DEF_R_PORT_PA_DIR,$r0
 #if defined(CONFIG_BLUETOOTH) && defined(CONFIG_BLUETOOTH_RESET_PA7)
 	or.b	IO_STATE (R_PORT_PA_DIR, dir7, output),$r0
@@ -520,7 +515,7 @@ no_command_line:
 #endif
 	move.b	$r0,[port_pa_data_shadow]
 	move.b	$r0,[R_PORT_PA_DATA]
-	
+
 	move.b	CONFIG_ETRAX_DEF_R_PORT_PB_CONFIG,$r0
 	move.b	$r0,[port_pb_config_shadow]
 	move.b	$r0,[R_PORT_PB_CONFIG]
@@ -562,13 +557,13 @@ no_command_line:
 #endif
 	move.d	$r0,[port_g_data_shadow]
 	move.d	$r0,[R_PORT_G_DATA]
-	
+
 	;; setup the serial port 0 at 115200 baud for debug purposes
-	
+
 	moveq	  IO_STATE (R_SERIAL0_XOFF, tx_stop, enable)		\
 		| IO_STATE (R_SERIAL0_XOFF, auto_xoff, disable)		\
 		| IO_FIELD (R_SERIAL0_XOFF, xoff_char, 0),$r0
-	move.d	$r0,[R_SERIAL0_XOFF] 
+	move.d	$r0,[R_SERIAL0_XOFF]
 
 	; 115.2kbaud for both transmit and receive
 	move.b	  IO_STATE (R_SERIAL0_BAUD, tr_baud, c115k2Hz)		\
@@ -584,8 +579,8 @@ no_command_line:
 		| IO_STATE (R_SERIAL0_REC_CTRL, rec_par, even)		\
 		| IO_STATE (R_SERIAL0_REC_CTRL, rec_par_en, disable)	\
 		| IO_STATE (R_SERIAL0_REC_CTRL, rec_bitnr, rec_8bit),$r0
-	move.b	$r0,[R_SERIAL0_REC_CTRL] 
-	
+	move.b	$r0,[R_SERIAL0_REC_CTRL]
+
 	; Set up and enable the serial0 transmitter.
 	move.b	  IO_FIELD (R_SERIAL0_TR_CTRL, txd, 0)			\
 		| IO_STATE (R_SERIAL0_TR_CTRL, tr_enable, enable)	\
@@ -598,11 +593,11 @@ no_command_line:
 	move.b	$r0,[R_SERIAL0_TR_CTRL]
 
 	;; setup the serial port 1 at 115200 baud for debug purposes
-	
+
 	moveq	  IO_STATE (R_SERIAL1_XOFF, tx_stop, enable)		\
 		| IO_STATE (R_SERIAL1_XOFF, auto_xoff, disable)		\
 		| IO_FIELD (R_SERIAL1_XOFF, xoff_char, 0),$r0
-	move.d	$r0,[R_SERIAL1_XOFF] 
+	move.d	$r0,[R_SERIAL1_XOFF]
 
 	; 115.2kbaud for both transmit and receive
 	move.b	  IO_STATE (R_SERIAL1_BAUD, tr_baud, c115k2Hz)		\
@@ -618,8 +613,8 @@ no_command_line:
 		| IO_STATE (R_SERIAL1_REC_CTRL, rec_par, even)		\
 		| IO_STATE (R_SERIAL1_REC_CTRL, rec_par_en, disable)	\
 		| IO_STATE (R_SERIAL1_REC_CTRL, rec_bitnr, rec_8bit),$r0
-	move.b	$r0,[R_SERIAL1_REC_CTRL] 
-	
+	move.b	$r0,[R_SERIAL1_REC_CTRL]
+
 	; Set up and enable the serial1 transmitter.
 	move.b	  IO_FIELD (R_SERIAL1_TR_CTRL, txd, 0)			\
 		| IO_STATE (R_SERIAL1_TR_CTRL, tr_enable, enable)	\
@@ -666,14 +661,14 @@ no_command_line:
 		| IO_STATE (R_SERIAL2_TR_CTRL, tr_bitnr, tr_8bit),$r0
 	move.b	$r0,[R_SERIAL2_TR_CTRL]
 #endif
-	
-#ifdef CONFIG_ETRAX_SERIAL_PORT3	
+
+#ifdef CONFIG_ETRAX_SERIAL_PORT3
 	;; setup the serial port 3 at 115200 baud for debug purposes
-	
+
 	moveq	  IO_STATE (R_SERIAL3_XOFF, tx_stop, enable)		\
 		| IO_STATE (R_SERIAL3_XOFF, auto_xoff, disable)		\
 		| IO_FIELD (R_SERIAL3_XOFF, xoff_char, 0),$r0
-	move.d	$r0,[R_SERIAL3_XOFF] 
+	move.d	$r0,[R_SERIAL3_XOFF]
 
 	; 115.2kbaud for both transmit and receive
 	move.b	  IO_STATE (R_SERIAL3_BAUD, tr_baud, c115k2Hz)		\
@@ -689,8 +684,8 @@ no_command_line:
 		| IO_STATE (R_SERIAL3_REC_CTRL, rec_par, even)		\
 		| IO_STATE (R_SERIAL3_REC_CTRL, rec_par_en, disable)	\
 		| IO_STATE (R_SERIAL3_REC_CTRL, rec_bitnr, rec_8bit),$r0
-	move.b	$r0,[R_SERIAL3_REC_CTRL] 
-	
+	move.b	$r0,[R_SERIAL3_REC_CTRL]
+
 	; Set up and enable the serial3 transmitter.
 	move.b	  IO_FIELD (R_SERIAL3_TR_CTRL, txd, 0)			\
 		| IO_STATE (R_SERIAL3_TR_CTRL, tr_enable, enable)	\
@@ -702,13 +697,11 @@ no_command_line:
 		| IO_STATE (R_SERIAL3_TR_CTRL, tr_bitnr, tr_8bit),$r0
 	move.b	$r0,[R_SERIAL3_TR_CTRL]
 #endif
-	
-#endif /* CONFIG_SVINTO_SIM */
 
 	jump	start_kernel	; jump into the C-function start_kernel in init/main.c
-		
+
 	.data
-etrax_irv:	
+etrax_irv:
 	.dword	0
 romfs_start:
 	.dword	0
@@ -716,13 +709,13 @@ romfs_length:
 	.dword	0
 romfs_in_flash:
 	.dword	0
-	
+
 	;; put some special pages at the beginning of the kernel aligned
 	;; to page boundaries - the kernel cannot start until after this
 
 #ifdef CONFIG_CRIS_LOW_MAP
 swapper_pg_dir = 0x60002000
-#else	
+#else
 swapper_pg_dir = 0xc0002000
 #endif
 

arch/cris/arch-v10/kernel/irq.c

@@ -5,7 +5,7 @@
  *
  *      Authors: Bjorn Wesen (bjornw@axis.com)
  *
- *      This file contains the interrupt vectors and some 
+ *      This file contains the interrupt vectors and some
  *      helper functions
  *
  */
@@ -182,19 +182,14 @@ void do_multiple_IRQ(struct pt_regs* regs)
    setting the irq vector table.
 */
 
-void __init
-init_IRQ(void)
+void __init init_IRQ(void)
 {
 	int i;
 
 	/* clear all interrupt masks */
-
-#ifndef CONFIG_SVINTO_SIM
 	*R_IRQ_MASK0_CLR = 0xffffffff;
 	*R_IRQ_MASK1_CLR = 0xffffffff;
 	*R_IRQ_MASK2_CLR = 0xffffffff;
-#endif
-
 	*R_VECT_MASK_CLR = 0xffffffff;
 
         for (i = 0; i < 256; i++)
@@ -211,25 +206,20 @@ init_IRQ(void)
            executed by the associated break handler, rather than just a jump
            address. therefore we need to setup a default breakpoint handler
            for all breakpoints */
-
 	for (i = 0; i < 16; i++)
                 set_break_vector(i, do_sigtrap);
-        
-	/* except IRQ 15 which is the multiple-IRQ handler on Etrax100 */
 
+	/* except IRQ 15 which is the multiple-IRQ handler on Etrax100 */
 	set_int_vector(15, multiple_interrupt);
-	
-	/* 0 and 1 which are special breakpoint/NMI traps */
 
+	/* 0 and 1 which are special breakpoint/NMI traps */
 	set_int_vector(0, hwbreakpoint);
 	set_int_vector(1, IRQ1_interrupt);
 
 	/* and irq 14 which is the mmu bus fault handler */
-
 	set_int_vector(14, mmu_bus_fault);
 
 	/* setup the system-call trap, which is reached by BREAK 13 */
-
 	set_break_vector(13, system_call);
 
         /* setup a breakpoint handler for debugging used for both user and

arch/cris/arch-v10/kernel/process.c

@@ -14,7 +14,6 @@
 #include <linux/slab.h>
 #include <linux/err.h>
 #include <linux/fs.h>
-#include <arch/svinto.h>
 #include <linux/init.h>
 #include <arch/system.h>
 #include <linux/ptrace.h>
@@ -56,14 +55,14 @@ void hard_reset_now (void)
 	 * code to know about it than the watchdog handler in entry.S and
 	 * this code, implementing hard reset through the watchdog.
 	 */
-#if defined(CONFIG_ETRAX_WATCHDOG) && !defined(CONFIG_SVINTO_SIM)
+#if defined(CONFIG_ETRAX_WATCHDOG)
 	extern int cause_of_death;
 #endif
 
 	printk("*** HARD RESET ***\n");
 	local_irq_disable();
 
-#if defined(CONFIG_ETRAX_WATCHDOG) && !defined(CONFIG_SVINTO_SIM)
+#if defined(CONFIG_ETRAX_WATCHDOG)
 	cause_of_death = 0xbedead;
 #else
 	/* Since we dont plan to keep on resetting the watchdog,

arch/cris/arch-v10/kernel/time.c

@@ -14,7 +14,6 @@
 #include <linux/sched.h>
 #include <linux/init.h>
 #include <linux/mm.h>
-#include <arch/svinto.h>
 #include <asm/types.h>
 #include <asm/signal.h>
 #include <asm/io.h>
@@ -34,7 +33,7 @@ unsigned long get_ns_in_jiffie(void)
 
 	local_irq_save(flags);
 	timer_count = *R_TIMER0_DATA;
-	presc_count = *R_TIM_PRESC_STATUS;  
+	presc_count = *R_TIM_PRESC_STATUS;
 	/* presc_count might be wrapped */
 	t1 = *R_TIMER0_DATA;
 
@@ -50,7 +49,7 @@ unsigned long get_ns_in_jiffie(void)
 		presc_count =  PRESCALE_VALUE - presc_count - PRESCALE_VALUE/2;
 	}
 
-	ns = ( (TIMER0_DIV - timer_count) * ((1000000000/HZ)/TIMER0_DIV )) + 
+	ns = ( (TIMER0_DIV - timer_count) * ((1000000000/HZ)/TIMER0_DIV )) +
 	     ( (presc_count) * (1000000000/PRESCALE_FREQ));
 	return ns;
 }
@@ -80,7 +79,7 @@ static u32 cris_v10_gettimeoffset(void)
  * by the R_WATCHDOG register. The R_WATCHDOG register contains an enable bit
  * and a 3-bit key value. The effect of writing to the R_WATCHDOG register is
  * described in the table below:
- * 
+ *
  *   Watchdog    Value written:
  *   state:      To enable:  To key:      Operation:
  *   --------    ----------  -------      ----------
@@ -89,15 +88,15 @@ static u32 cris_v10_gettimeoffset(void)
  *   started         0       ~key         Stop watchdog
  *   started         1       ~key         Restart watchdog with key = ~key.
  *   started         X       new_key_val  Change key to new_key_val.
- * 
+ *
  * Note: '~' is the bitwise NOT operator.
- * 
+ *
  */
 
 /* right now, starting the watchdog is the same as resetting it */
 #define start_watchdog reset_watchdog
 
-#if defined(CONFIG_ETRAX_WATCHDOG) && !defined(CONFIG_SVINTO_SIM)
+#ifdef CONFIG_ETRAX_WATCHDOG
 static int watchdog_key = 0;  /* arbitrary number */
 #endif
 
@@ -107,10 +106,9 @@ static int watchdog_key = 0;  /* arbitrary number */
 
 #define WATCHDOG_MIN_FREE_PAGES 8
 
-void
-reset_watchdog(void)
+void reset_watchdog(void)
 {
-#if defined(CONFIG_ETRAX_WATCHDOG) && !defined(CONFIG_SVINTO_SIM)
+#if defined(CONFIG_ETRAX_WATCHDOG)
 	/* only keep watchdog happy as long as we have memory left! */
 	if(nr_free_pages() > WATCHDOG_MIN_FREE_PAGES) {
 		/* reset the watchdog with the inverse of the old key */
@@ -123,28 +121,23 @@ reset_watchdog(void)
 
 /* stop the watchdog - we still need the correct key */
 
-void 
-stop_watchdog(void)
+void stop_watchdog(void)
 {
-#if defined(CONFIG_ETRAX_WATCHDOG) && !defined(CONFIG_SVINTO_SIM)
+#ifdef CONFIG_ETRAX_WATCHDOG
 	watchdog_key ^= 0x7; /* invert key, which is 3 bits */
 	*R_WATCHDOG = IO_FIELD(R_WATCHDOG, key, watchdog_key) |
 		IO_STATE(R_WATCHDOG, enable, stop);
-#endif	
+#endif
 }
 
 
+extern void cris_do_profile(struct pt_regs *regs);
+
 /*
  * timer_interrupt() needs to keep up the real-time clock,
  * as well as call the "xtime_update()" routine every clocktick
  */
-
-//static unsigned short myjiff; /* used by our debug routine print_timestamp */
-
-extern void cris_do_profile(struct pt_regs *regs);
-
-static inline irqreturn_t
-timer_interrupt(int irq, void *dev_id)
+static inline irqreturn_t timer_interrupt(int irq, void *dev_id)
 {
 	struct pt_regs *regs = get_irq_regs();
 	/* acknowledge the timer irq */
@@ -160,44 +153,39 @@ timer_interrupt(int irq, void *dev_id)
 		IO_STATE( R_TIMER_CTRL, tm0, run) |
 		IO_STATE( R_TIMER_CTRL, clksel0, c6250kHz);
 #else
-	*R_TIMER_CTRL = r_timer_ctrl_shadow | 
-		IO_STATE(R_TIMER_CTRL, i0, clr);
+	*R_TIMER_CTRL = r_timer_ctrl_shadow | IO_STATE(R_TIMER_CTRL, i0, clr);
 #endif
 
 	/* reset watchdog otherwise it resets us! */
 	reset_watchdog();
-	
+
 	/* Update statistics. */
 	update_process_times(user_mode(regs));
 
 	/* call the real timer interrupt handler */
-
 	xtime_update(1);
-	
+
         cris_do_profile(regs); /* Save profiling information */
         return IRQ_HANDLED;
 }
 
-/* timer is IRQF_SHARED so drivers can add stuff to the timer irq chain
- * it needs to be IRQF_DISABLED to make the jiffies update work properly
- */
+/* timer is IRQF_SHARED so drivers can add stuff to the timer irq chain */
 
 static struct irqaction irq2  = {
 	.handler = timer_interrupt,
-	.flags = IRQF_SHARED | IRQF_DISABLED,
+	.flags = IRQF_SHARED,
 	.name = "timer",
 };
 
-void __init
-time_init(void)
-{	
+void __init time_init(void)
+{
 	arch_gettimeoffset = cris_v10_gettimeoffset;
 
-	/* probe for the RTC and read it if it exists 
-	 * Before the RTC can be probed the loops_per_usec variable needs 
-	 * to be initialized to make usleep work. A better value for 
-	 * loops_per_usec is calculated by the kernel later once the 
-	 * clock has started.  
+	/* probe for the RTC and read it if it exists
+	 * Before the RTC can be probed the loops_per_usec variable needs
+	 * to be initialized to make usleep work. A better value for
+	 * loops_per_usec is calculated by the kernel later once the
+	 * clock has started.
 	 */
 	loops_per_usec = 50;
 
@@ -208,7 +196,7 @@ time_init(void)
 	 * Remember that linux/timex.h contains #defines that rely on the
 	 * timer settings below (hz and divide factor) !!!
 	 */
-	
+
 #ifdef USE_CASCADE_TIMERS
 	*R_TIMER_CTRL =
 		IO_FIELD( R_TIMER_CTRL, timerdiv1, 0) |
@@ -219,8 +207,8 @@ time_init(void)
 		IO_STATE( R_TIMER_CTRL, i0, nop) |
 		IO_STATE( R_TIMER_CTRL, tm0, stop_ld) |
 		IO_STATE( R_TIMER_CTRL, clksel0, c6250kHz);
-	
-	*R_TIMER_CTRL = r_timer_ctrl_shadow = 
+
+	*R_TIMER_CTRL = r_timer_ctrl_shadow =
 		IO_FIELD( R_TIMER_CTRL, timerdiv1, 0) |
 		IO_FIELD( R_TIMER_CTRL, timerdiv0, 0) |
 		IO_STATE( R_TIMER_CTRL, i1, nop) |
@@ -230,18 +218,18 @@ time_init(void)
 		IO_STATE( R_TIMER_CTRL, tm0, run) |
 		IO_STATE( R_TIMER_CTRL, clksel0, c6250kHz);
 #else
-	*R_TIMER_CTRL = 
-		IO_FIELD(R_TIMER_CTRL, timerdiv1, 192)      | 
+	*R_TIMER_CTRL =
+		IO_FIELD(R_TIMER_CTRL, timerdiv1, 192)      |
 		IO_FIELD(R_TIMER_CTRL, timerdiv0, TIMER0_DIV)      |
-		IO_STATE(R_TIMER_CTRL, i1,        nop)      | 
+		IO_STATE(R_TIMER_CTRL, i1,        nop)      |
 		IO_STATE(R_TIMER_CTRL, tm1,       stop_ld)  |
 		IO_STATE(R_TIMER_CTRL, clksel1,   c19k2Hz)  |
 		IO_STATE(R_TIMER_CTRL, i0,        nop)      |
 		IO_STATE(R_TIMER_CTRL, tm0,       stop_ld)  |
 		IO_STATE(R_TIMER_CTRL, clksel0,   flexible);
-	
+
 	*R_TIMER_CTRL = r_timer_ctrl_shadow =
-		IO_FIELD(R_TIMER_CTRL, timerdiv1, 192)      | 
+		IO_FIELD(R_TIMER_CTRL, timerdiv1, 192)      |
 		IO_FIELD(R_TIMER_CTRL, timerdiv0, TIMER0_DIV)      |
 		IO_STATE(R_TIMER_CTRL, i1,        nop)      |
 		IO_STATE(R_TIMER_CTRL, tm1,       run)      |
@@ -253,16 +241,14 @@ time_init(void)
 	*R_TIMER_PRESCALE = PRESCALE_VALUE;
 #endif
 
-	*R_IRQ_MASK0_SET =
-		IO_STATE(R_IRQ_MASK0_SET, timer0, set); /* unmask the timer irq */
-	
-	/* now actually register the timer irq handler that calls timer_interrupt() */
-	
+	/* unmask the timer irq */
+	*R_IRQ_MASK0_SET = IO_STATE(R_IRQ_MASK0_SET, timer0, set);
+
+	/* now actually register the irq handler that calls timer_interrupt() */
 	setup_irq(2, &irq2); /* irq 2 is the timer0 irq in etrax */
 
 	/* enable watchdog if we should use one */
-
-#if defined(CONFIG_ETRAX_WATCHDOG) && !defined(CONFIG_SVINTO_SIM)
+#if defined(CONFIG_ETRAX_WATCHDOG)
 	printk("Enabling watchdog...\n");
 	start_watchdog();
 
@@ -275,9 +261,7 @@ time_init(void)
 	   driver or infrastructure support yet.  */
 	asm ("setf m");
 
-	*R_IRQ_MASK0_SET =
-		IO_STATE(R_IRQ_MASK0_SET, watchdog_nmi, set);
-	*R_VECT_MASK_SET =
-		IO_STATE(R_VECT_MASK_SET, nmi, set);
+	*R_IRQ_MASK0_SET = IO_STATE(R_IRQ_MASK0_SET, watchdog_nmi, set);
+	*R_VECT_MASK_SET = IO_STATE(R_VECT_MASK_SET, nmi, set);
 #endif
 }

arch/cris/arch-v10/lib/dram_init.S

@@ -5,9 +5,7 @@
  * Note: This file may not modify r9 because r9 is used to carry
  *       information from the decompresser to the kernel
  *
- * Copyright (C) 2000, 2001 Axis Communications AB
- *
- * Authors:  Mikael Starvik (starvik@axis.com)
+ * Copyright (C) 2000-2012 Axis Communications AB
  *
  */
 
@@ -18,16 +16,15 @@
 
 
 	;; WARNING! The registers r8 and r9 are used as parameters carrying
-	;; information from the decompressor (if the kernel was compressed). 
+	;; information from the decompressor (if the kernel was compressed).
 	;; They should not be used in the code below.
 
-#ifndef CONFIG_SVINTO_SIM	
 	move.d   CONFIG_ETRAX_DEF_R_WAITSTATES, $r0
 	move.d   $r0, [R_WAITSTATES]
 
 	move.d   CONFIG_ETRAX_DEF_R_BUS_CONFIG, $r0
 	move.d   $r0, [R_BUS_CONFIG]
-	
+
 #ifndef CONFIG_ETRAX_SDRAM
 	move.d   CONFIG_ETRAX_DEF_R_DRAM_CONFIG, $r0
 	move.d   $r0, [R_DRAM_CONFIG]
@@ -38,14 +35,14 @@
 	;; Samsung SDRAMs seem to require to be initialized twice to work properly.
 	moveq    2, $r6	
 _sdram_init:
-	
+
 	; Refer to ETRAX 100LX Designers Reference for a description of SDRAM initialization
-	
+
 	; Bank configuration
 	move.d   CONFIG_ETRAX_DEF_R_SDRAM_CONFIG, $r0
 	move.d   $r0, [R_SDRAM_CONFIG]
 
-	; Calculate value of mrs_data 
+	; Calculate value of mrs_data
 	; CAS latency = 2 && bus_width = 32 => 0x40
 	; CAS latency = 3 && bus_width = 32 => 0x60
 	; CAS latency = 2 && bus_width = 16 => 0x20
@@ -56,22 +53,22 @@ _sdram_init:
 	and.d    0x00ff0000, $r2
 	bne	 _set_timing
 	lsrq     16, $r2
-	
+
 	move.d   0x40, $r2       ; Assume 32 bits and CAS latency = 2
 	move.d   CONFIG_ETRAX_DEF_R_SDRAM_TIMING, $r1
 	move.d   $r1, $r3
- 	and.d    0x03, $r1       ; Get CAS latency
+	and.d    0x03, $r1       ; Get CAS latency
 	and.d    0x1000, $r3     ; 50 or 100 MHz?
 	beq      _speed_50
 	nop
-_speed_100:		
+_speed_100:
 	cmp.d    0x00, $r1	; CAS latency = 2?
 	beq      _bw_check
 	nop
-	or.d     0x20, $r2	; CAS latency = 3 
+	or.d     0x20, $r2	; CAS latency = 3
 	ba       _bw_check
 	nop
-_speed_50:			
+_speed_50:
 	cmp.d    0x01, $r1	; CAS latency = 2?
 	beq      _bw_check
 	nop
@@ -86,19 +83,19 @@ _bw_check:
 	; Set timing parameters. Starts master clock
 _set_timing:
 	move.d   CONFIG_ETRAX_DEF_R_SDRAM_TIMING, $r1
-	and.d    0x8000f9ff, $r1 ; Make sure mrs data and command is 0 
+	and.d    0x8000f9ff, $r1 ; Make sure mrs data and command is 0
 	or.d     0x80000000, $r1	; Make sure sdram enable bit is set
 	move.d   $r1, $r5
 	or.d     0x0000c000, $r1 ; ref = disable
 	lslq     16, $r2		; mrs data starts at bit 16
-	or.d     $r2, $r1 
-	move.d   $r1, [R_SDRAM_TIMING]	
-		
+	or.d     $r2, $r1
+	move.d   $r1, [R_SDRAM_TIMING]
+
 	; Wait 200us
 	move.d   10000, $r2
 1:	bne      1b
 	subq     1, $r2
-	
+
 	; Issue initialization command sequence
 	move.d   _sdram_commands_start, $r2
 	and.d    0x000fffff, $r2 ; Make sure commands are read from flash
@@ -144,7 +141,6 @@ _sdram_commands_start:
 	.byte   2	; refresh
 	.byte   0	; nop
 	.byte   1	; mrs
-	.byte   0	; nop 
-_sdram_commands_end:		
-#endif
+	.byte   0	; nop
+_sdram_commands_end:
 #endif

arch/cris/arch-v32/drivers/mach-a3/gpio.c

@@ -978,7 +978,7 @@ static int __init gpio_init(void)
 	CRIS_LED_DISK_WRITE(0);
 
 	int res2 = request_irq(GIO_INTR_VECT, gpio_interrupt,
-		IRQF_SHARED | IRQF_DISABLED, "gpio", &alarmlist);
+		IRQF_SHARED, "gpio", &alarmlist);
 	if (res2) {
 		printk(KERN_ERR "err: irq for gpio\n");
 		return res2;

arch/cris/arch-v32/drivers/mach-fs/gpio.c

@@ -964,11 +964,11 @@ gpio_init(void)
 	 * in some tests.
 	 */
 	if (request_irq(TIMER0_INTR_VECT, gpio_poll_timer_interrupt,
-			IRQF_SHARED | IRQF_DISABLED, "gpio poll", &alarmlist))
+			IRQF_SHARED, "gpio poll", &alarmlist))
 		printk(KERN_ERR "timer0 irq for gpio\n");
 
 	if (request_irq(GIO_INTR_VECT, gpio_pa_interrupt,
-			IRQF_SHARED | IRQF_DISABLED, "gpio PA", &alarmlist))
+			IRQF_SHARED, "gpio PA", &alarmlist))
 		printk(KERN_ERR "PA irq for gpio\n");
 
 #ifdef CONFIG_ETRAX_VIRTUAL_GPIO

arch/cris/arch-v32/drivers/sync_serial.c

@@ -19,6 +19,7 @@
 #include <linux/init.h>
 #include <linux/timer.h>
 #include <linux/spinlock.h>
+#include <linux/wait.h>
 
 #include <asm/io.h>
 #include <dma.h>
@@ -1144,7 +1145,8 @@ static ssize_t sync_serial_read(struct file * file, char * buf,
 		if (file->f_flags & O_NONBLOCK)
 			return -EAGAIN;
 
-		interruptible_sleep_on(&port->in_wait_q);
+		wait_event_interruptible(port->in_wait_q,
+					 !(start == end && !port->full));
 		if (signal_pending(current))
 			return -EINTR;
 

arch/cris/arch-v32/kernel/entry.S

@@ -424,7 +424,7 @@ nmi_interrupt:
 	bpl     1f
 	nop
 	jsr	handle_watchdog_bite	; In time.c.
-        move.d	$sp, $r10		; Pointer to registers
+	move.d	$sp, $r10		; Pointer to registers
 1:	btstq	REG_BIT(intr_vect, r_nmi, ext), $r0
 	bpl     1f
 	nop
@@ -452,7 +452,7 @@ spurious_interrupt:
 	nop
 
 	;; This handles the case when multiple interrupts arrive at the same
-	;; time. Jump to the first set interrupt bit in a priotiry fashion. The
+	;; time. Jump to the first set interrupt bit in a priority fashion. The
 	;; hardware will call the unserved interrupts after the handler
 	;; finishes.
 	.type	multiple_interrupt, @function
@@ -885,13 +885,29 @@ sys_call_table:
 	.long sys_preadv
 	.long sys_pwritev
 	.long sys_setns			/* 335 */
-
-        /*
-         * NOTE!! This doesn't have to be exact - we just have
-         * to make sure we have _enough_ of the "sys_ni_syscall"
-         * entries. Don't panic if you notice that this hasn't
-         * been shrunk every time we add a new system call.
-         */
+	.long sys_name_to_handle_at
+	.long sys_open_by_handle_at
+	.long sys_rt_tgsigqueueinfo
+	.long sys_perf_event_open
+	.long sys_recvmmsg		/* 340 */
+	.long sys_accept4
+	.long sys_fanotify_init
+	.long sys_fanotify_mark
+	.long sys_prlimit64
+	.long sys_clock_adjtime		/* 345 */
+	.long sys_syncfs
+	.long sys_sendmmsg
+	.long sys_process_vm_readv
+	.long sys_process_vm_writev
+	.long sys_kcmp			/* 350 */
+	.long sys_finit_module
+
+	/*
+	 * NOTE!! This doesn't have to be exact - we just have
+	 * to make sure we have _enough_ of the "sys_ni_syscall"
+	 * entries. Don't panic if you notice that this hasn't
+	 * been shrunk every time we add a new system call.
+	 */
 
 	.rept NR_syscalls - (.-sys_call_table) / 4
 		.long sys_ni_syscall

arch/cris/arch-v32/kernel/fasttimer.c

@@ -786,7 +786,7 @@ int fast_timer_init(void)
     proc_create("fasttimer", 0, NULL, &proc_fasttimer_fops);
 #endif /* PROC_FS */
 		if (request_irq(TIMER0_INTR_VECT, timer_trig_interrupt,
-				IRQF_SHARED | IRQF_DISABLED,
+				IRQF_SHARED,
 				"fast timer int", &fast_timer_list))
 			printk(KERN_ERR "err: fasttimer irq\n");
     fast_timer_is_init = 1;

arch/cris/arch-v32/kernel/irq.c

@@ -331,11 +331,11 @@ extern void do_IRQ(int irq, struct pt_regs * regs);
 void
 crisv32_do_IRQ(int irq, int block, struct pt_regs* regs)
 {
-	/* Interrupts that may not be moved to another CPU and
-         * are IRQF_DISABLED may skip blocking. This is currently
-         * only valid for the timer IRQ and the IPI and is used
-         * for the timer interrupt to avoid watchdog starvation.
-         */
+	/* Interrupts that may not be moved to another CPU may
+	 * skip blocking. This is currently only valid for the
+	 * timer IRQ and the IPI and is used for the timer
+	 * interrupt to avoid watchdog starvation.
+	 */
 	if (!block) {
 		do_IRQ(irq, regs);
 		return;

arch/cris/arch-v32/kernel/smp.c

@@ -64,7 +64,7 @@ static irqreturn_t crisv32_ipi_interrupt(int irq, void *dev_id);
 static int send_ipi(int vector, int wait, cpumask_t cpu_mask);
 static struct irqaction irq_ipi  = {
 	.handler = crisv32_ipi_interrupt,
-	.flags = IRQF_DISABLED,
+	.flags = 0,
 	.name = "ipi",
 };
 

arch/cris/arch-v32/kernel/time.c

@@ -216,12 +216,10 @@ static inline irqreturn_t timer_interrupt(int irq, void *dev_id)
         return IRQ_HANDLED;
 }
 
-/* Timer is IRQF_SHARED so drivers can add stuff to the timer irq chain.
- * It needs to be IRQF_DISABLED to make the jiffies update work properly.
- */
+/* Timer is IRQF_SHARED so drivers can add stuff to the timer irq chain. */
 static struct irqaction irq_timer = {
 	.handler = timer_interrupt,
-	.flags = IRQF_SHARED | IRQF_DISABLED,
+	.flags = IRQF_SHARED,
 	.name = "timer"
 };
 

arch/cris/arch-v32/mach-a3/arbiter.c

@@ -256,11 +256,11 @@ static void crisv32_arbiter_init(void)
 	crisv32_arbiter_config(1, EXT_REGION, 0);
 
 	if (request_irq(MEMARB_FOO_INTR_VECT, crisv32_foo_arbiter_irq,
-			IRQF_DISABLED, "arbiter", NULL))
+			0, "arbiter", NULL))
 		printk(KERN_ERR "Couldn't allocate arbiter IRQ\n");
 
 	if (request_irq(MEMARB_BAR_INTR_VECT, crisv32_bar_arbiter_irq,
-			IRQF_DISABLED, "arbiter", NULL))
+			0, "arbiter", NULL))
 		printk(KERN_ERR "Couldn't allocate arbiter IRQ\n");
 
 #ifndef CONFIG_ETRAX_KGDB

arch/cris/arch-v32/mach-fs/arbiter.c

@@ -184,7 +184,7 @@ static void crisv32_arbiter_init(void)
 	crisv32_arbiter_config(EXT_REGION, 0);
 	crisv32_arbiter_config(INT_REGION, 0);
 
-	if (request_irq(MEMARB_INTR_VECT, crisv32_arbiter_irq, IRQF_DISABLED,
+	if (request_irq(MEMARB_INTR_VECT, crisv32_arbiter_irq, 0,
 			"arbiter", NULL))
 		printk(KERN_ERR "Couldn't allocate arbiter IRQ\n");
 

arch/cris/boot/rescue/kimagerescue.S

@@ -50,7 +50,6 @@
 
 	nop
 	di
-#ifndef CONFIG_SVINTO_SIM
 	;; setup port PA and PB default initial directions and data
 	;; (so we can flash LEDs, and so that DTR and others are set)
 
@@ -67,7 +66,6 @@
 	;; We need to setup the bus registers before we start using the DRAM
 #include "../../lib/dram_init.S"
 
-#endif
 	;; Setup the stack to a suitably high address.
 	;; We assume 8 MB is the minimum DRAM in an eLinux
 	;; product and put the sp at the top for now.

arch/cris/include/arch-v10/arch/io.h

 #ifndef _ASM_ARCH_CRIS_IO_H
 #define _ASM_ARCH_CRIS_IO_H
 
-#include <arch/svinto.h>
-
 /* Etrax shadow registers - which live in arch/cris/kernel/shadows.c */
 
 extern unsigned long gen_config_ii_shadow;
@@ -34,7 +32,7 @@ extern volatile unsigned long *port_csp4_addr;
 
 /* The LED's on various Etrax-based products are set differently. */
 
-#if defined(CONFIG_ETRAX_NO_LEDS) || defined(CONFIG_SVINTO_SIM)
+#if defined(CONFIG_ETRAX_NO_LEDS)
 #undef CONFIG_ETRAX_PA_LEDS
 #undef CONFIG_ETRAX_PB_LEDS
 #undef CONFIG_ETRAX_CSP0_LEDS
@@ -171,29 +169,4 @@ extern volatile unsigned long *port_csp4_addr;
 #define SOFT_SHUTDOWN()
 #endif
 
-/* Console I/O for simulated etrax100.  Use #ifdef so erroneous
-   use will be evident. */
-#ifdef CONFIG_SVINTO_SIM
-  /* Let's use the ucsim interface since it lets us do write(2, ...) */
-#define SIMCOUT(s,len)							\
-  asm ("moveq 4,$r9	\n\t"						\
-       "moveq 2,$r10	\n\t"						\
-       "move.d %0,$r11	\n\t"						\
-       "move.d %1,$r12	\n\t"						\
-       "push $irp	\n\t"						\
-       "move 0f,$irp	\n\t"						\
-       "jump -6809	\n"						\
-       "0:		\n\t"						\
-       "pop $irp"							\
-       : : "rm" (s), "rm" (len) : "r9","r10","r11","r12","memory")
-#define TRACE_ON() __extension__ \
- ({ int _Foofoo; __asm__ volatile ("bmod [%0],%0" : "=r" (_Foofoo) : "0" \
-			       (255)); _Foofoo; })
-
-#define TRACE_OFF() do { __asm__ volatile ("bmod [%0],%0" :: "r" (254)); } while (0)
-#define SIM_END() do { __asm__ volatile ("bmod [%0],%0" :: "r" (28)); } while (0)
-#define CRIS_CYCLES() __extension__ \
- ({ unsigned long c; asm ("bmod [%1],%0" : "=r" (c) : "r" (27)); c;})
-#endif /* ! defined CONFIG_SVINTO_SIM */
-
 #endif

arch/cris/include/arch-v10/arch/irq.h

@@ -141,9 +141,9 @@ __asm__ ( \
  * handler is run and it prioritizes the timer interrupt. However if we had BLOCK'ed
  * it here, we would not get the multiple_irq at all.
  *
- * The non-blocking here is based on the knowledge that the timer interrupt is 
- * registered as a fast interrupt (IRQF_DISABLED) so that we _know_ there will not
- * be an sti() before the timer irq handler is run to acknowledge the interrupt.
+ * The non-blocking here is based on the knowledge that the timer interrupt runs
+ * with interrupts disabled, and therefore there will not be an sti() before the
+ * timer irq handler is run to acknowledge the interrupt.
  */
 
 #define BUILD_TIMER_IRQ(nr,mask) \

arch/cris/include/arch-v32/arch/irq.h

@@ -102,9 +102,9 @@ __asm__ (				\
  * multiple_irq handler is run and it prioritizes the timer interrupt. However
  * if we had BLOCK'edit here, we would not get the multiple_irq at all.
  *
- * The non-blocking here is based on the knowledge that the timer interrupt is
- * registered as a fast interrupt (IRQF_DISABLED) so that we _know_ there will not
- * be an sti() before the timer irq handler is run to acknowledge the interrupt.
+ * The non-blocking here is based on the knowledge that the timer interrupt runs
+ * with interrupts disabled, and therefore there will not be an sti() before the
+ * timer irq handler is run to acknowledge the interrupt.
  */
 #define BUILD_TIMER_IRQ(nr, mask) 	\
 void IRQ_NAME(nr);			\

arch/cris/include/asm/unistd.h

@@ -4,7 +4,7 @@
 #include <uapi/asm/unistd.h>
 
 
-#define NR_syscalls 336
+#define NR_syscalls 360
 
 #include <arch/unistd.h>
 

arch/cris/include/uapi/asm/unistd.h

@@ -340,5 +340,21 @@
 #define __NR_preadv		333
 #define __NR_pwritev		334
 #define __NR_setns		335
+#define __NR_name_to_handle_at	336
+#define __NR_open_by_handle_at	337
+#define __NR_rt_tgsigqueueinfo 338
+#define __NR_perf_event_open	339
+#define __NR_recvmmsg		340
+#define __NR_accept4		341
+#define __NR_fanotify_init	342
+#define __NR_fanotify_mark	343
+#define __NR_prlimit64		344
+#define __NR_clock_adjtime	345
+#define __NR_syncfs		346
+#define __NR_sendmmsg		347
+#define __NR_process_vm_readv	348
+#define __NR_process_vm_writev	349
+#define __NR_kcmp		350
+#define __NR_finit_module	351
 
 #endif /* _UAPI_ASM_CRIS_UNISTD_H_ */

arch/cris/kernel/irq.c

@@ -40,9 +40,6 @@
 
 /* called by the assembler IRQ entry functions defined in irq.h
  * to dispatch the interrupts to registered handlers
- * interrupts are disabled upon entry - depending on if the
- * interrupt was registered with IRQF_DISABLED or not, interrupts
- * are re-enabled or not.
  */
 
 asmlinkage void do_IRQ(int irq, struct pt_regs * regs)