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authorJiri Kosina <jkosina@suse.cz>2014-02-20 14:54:28 +0100
committerJiri Kosina <jkosina@suse.cz>2014-02-20 14:54:28 +0100
commitd4263348f796f29546f90802177865dd4379dd0a (patch)
treeadcbdaebae584eee2f32fab95e826e8e49eef385 /arch/cris
parentbe873ac782f5ff5ee6675f83929f4fe6737eead2 (diff)
parent6d0abeca3242a88cab8232e4acd7e2bf088f3bc2 (diff)
Merge branch 'master' into for-next
Diffstat (limited to 'arch/cris')
-rw-r--r--arch/cris/Kconfig6
-rw-r--r--arch/cris/arch-v10/drivers/gpio.c4
-rw-r--r--arch/cris/arch-v10/drivers/sync_serial.c8
-rw-r--r--arch/cris/arch-v10/kernel/Makefile1
-rw-r--r--arch/cris/arch-v10/kernel/debugport.c7
-rw-r--r--arch/cris/arch-v10/kernel/entry.S184
-rw-r--r--arch/cris/arch-v10/kernel/head.S127
-rw-r--r--arch/cris/arch-v10/kernel/irq.c18
-rw-r--r--arch/cris/arch-v10/kernel/process.c4
-rw-r--r--arch/cris/arch-v10/kernel/time.c98
-rw-r--r--arch/cris/arch-v10/lib/dram_init.S40
-rw-r--r--arch/cris/arch-v32/drivers/axisflashmap.c2
-rw-r--r--arch/cris/arch-v32/drivers/mach-a3/gpio.c2
-rw-r--r--arch/cris/arch-v32/drivers/mach-fs/gpio.c4
-rw-r--r--arch/cris/arch-v32/drivers/sync_serial.c4
-rw-r--r--arch/cris/arch-v32/kernel/entry.S34
-rw-r--r--arch/cris/arch-v32/kernel/fasttimer.c2
-rw-r--r--arch/cris/arch-v32/kernel/irq.c10
-rw-r--r--arch/cris/arch-v32/kernel/smp.c2
-rw-r--r--arch/cris/arch-v32/kernel/time.c6
-rw-r--r--arch/cris/arch-v32/mach-a3/arbiter.c4
-rw-r--r--arch/cris/arch-v32/mach-fs/arbiter.c2
-rw-r--r--arch/cris/boot/rescue/kimagerescue.S2
-rw-r--r--arch/cris/include/arch-v10/arch/io.h29
-rw-r--r--arch/cris/include/arch-v10/arch/irq.h6
-rw-r--r--arch/cris/include/arch-v32/arch/irq.h6
-rw-r--r--arch/cris/include/asm/Kbuild2
-rw-r--r--arch/cris/include/asm/barrier.h25
-rw-r--r--arch/cris/include/asm/io.h4
-rw-r--r--arch/cris/include/asm/unistd.h2
-rw-r--r--arch/cris/include/uapi/asm/socket.h2
-rw-r--r--arch/cris/include/uapi/asm/unistd.h16
-rw-r--r--arch/cris/kernel/irq.c3
33 files changed, 307 insertions, 359 deletions
diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index 9c957c81c688..ed0fcdf7e990 100644
--- a/arch/cris/Kconfig
+++ b/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
diff --git a/arch/cris/arch-v10/drivers/gpio.c b/arch/cris/arch-v10/drivers/gpio.c
index 609d5510410e..f4374bae4fb4 100644
--- a/arch/cris/arch-v10/drivers/gpio.c
+++ b/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");
diff --git a/arch/cris/arch-v10/drivers/sync_serial.c b/arch/cris/arch-v10/drivers/sync_serial.c
index a1c498d18d31..29eb02ab3f25 100644
--- a/arch/cris/arch-v10/drivers/sync_serial.c
+++ b/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;
diff --git a/arch/cris/arch-v10/kernel/Makefile b/arch/cris/arch-v10/kernel/Makefile
index dcfec41d3533..4841e822cdd1 100644
--- a/arch/cris/arch-v10/kernel/Makefile
+++ b/arch/cris/arch-v10/kernel/Makefile
@@ -1,4 +1,3 @@
-# $Id: Makefile,v 1.6 2004/12/13 12:21:51 starvik Exp $
#
# Makefile for the linux kernel.
#
diff --git a/arch/cris/arch-v10/kernel/debugport.c b/arch/cris/arch-v10/kernel/debugport.c
index f932c85fbde4..7d307cce8bd8 100644
--- a/arch/cris/arch-v10/kernel/debugport.c
+++ b/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);
}
diff --git a/arch/cris/arch-v10/kernel/entry.S b/arch/cris/arch-v10/kernel/entry.S
index 897bba67bf7a..81570fcd0412 100644
--- a/arch/cris/arch-v10/kernel/entry.S
+++ b/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
-
+
diff --git a/arch/cris/arch-v10/kernel/head.S b/arch/cris/arch-v10/kernel/head.S
index a1f2014b4e3b..4a146e1749c9 100644
--- a/arch/cris/arch-v10/kernel/head.S
+++ b/arch/cris/arch-v10/kernel/head.S
@@ -1,12 +1,10 @@
/*
* 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