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authorPaul Mundt <lethal@linux-sh.org>2011-01-07 10:29:26 +0900
committerPaul Mundt <lethal@linux-sh.org>2011-01-07 10:29:26 +0900
commit5e93c6b4ecd78b1bab49bad1dc2f6ed7ec0115ee (patch)
tree4f4e321a1ca0baf64d8af528080c71f93495a7d7 /arch/arm/kernel/entry-armv.S
parent98d27b8abf413a310df6676f7d2128ada1cccc08 (diff)
parent3c0cb7c31c206aaedb967e44b98442bbeb17a6c4 (diff)
downloadblackbird-op-linux-5e93c6b4ecd78b1bab49bad1dc2f6ed7ec0115ee.tar.gz
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Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 into rmobile-latest
Conflicts: arch/arm/mach-shmobile/Kconfig Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/arm/kernel/entry-armv.S')
-rw-r--r--arch/arm/kernel/entry-armv.S56
1 files changed, 23 insertions, 33 deletions
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index bb96a7d4bbf5..2b46fea36c9f 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -25,42 +25,22 @@
#include <asm/tls.h>
#include "entry-header.S"
+#include <asm/entry-macro-multi.S>
/*
* Interrupt handling. Preserves r7, r8, r9
*/
.macro irq_handler
- get_irqnr_preamble r5, lr
-1: get_irqnr_and_base r0, r6, r5, lr
- movne r1, sp
- @
- @ routine called with r0 = irq number, r1 = struct pt_regs *
- @
- adrne lr, BSYM(1b)
- bne asm_do_IRQ
-
-#ifdef CONFIG_SMP
- /*
- * XXX
- *
- * this macro assumes that irqstat (r6) and base (r5) are
- * preserved from get_irqnr_and_base above
- */
- ALT_SMP(test_for_ipi r0, r6, r5, lr)
- ALT_UP_B(9997f)
- movne r0, sp
- adrne lr, BSYM(1b)
- bne do_IPI
-
-#ifdef CONFIG_LOCAL_TIMERS
- test_for_ltirq r0, r6, r5, lr
- movne r0, sp
- adrne lr, BSYM(1b)
- bne do_local_timer
+#ifdef CONFIG_MULTI_IRQ_HANDLER
+ ldr r5, =handle_arch_irq
+ mov r0, sp
+ ldr r5, [r5]
+ adr lr, BSYM(9997f)
+ teq r5, #0
+ movne pc, r5
#endif
+ arch_irq_handler_default
9997:
-#endif
-
.endm
#ifdef CONFIG_KPROBES
@@ -198,6 +178,7 @@ __dabt_svc:
@
@ set desired IRQ state, then call main handler
@
+ debug_entry r1
msr cpsr_c, r9
mov r2, sp
bl do_DataAbort
@@ -324,6 +305,7 @@ __pabt_svc:
#else
bl CPU_PABORT_HANDLER
#endif
+ debug_entry r1
msr cpsr_c, r9 @ Maybe enable interrupts
mov r2, sp @ regs
bl do_PrefetchAbort @ call abort handler
@@ -439,6 +421,7 @@ __dabt_usr:
@
@ IRQs on, then call the main handler
@
+ debug_entry r1
enable_irq
mov r2, sp
adr lr, BSYM(ret_from_exception)
@@ -703,6 +686,7 @@ __pabt_usr:
#else
bl CPU_PABORT_HANDLER
#endif
+ debug_entry r1
enable_irq @ Enable interrupts
mov r2, sp @ regs
bl do_PrefetchAbort @ call abort handler
@@ -735,7 +719,7 @@ ENTRY(__switch_to)
THUMB( stmia ip!, {r4 - sl, fp} ) @ Store most regs on stack
THUMB( str sp, [ip], #4 )
THUMB( str lr, [ip], #4 )
-#ifdef CONFIG_MMU
+#ifdef CONFIG_CPU_USE_DOMAINS
ldr r6, [r2, #TI_CPU_DOMAIN]
#endif
set_tls r3, r4, r5
@@ -744,7 +728,7 @@ ENTRY(__switch_to)
ldr r8, =__stack_chk_guard
ldr r7, [r7, #TSK_STACK_CANARY]
#endif
-#ifdef CONFIG_MMU
+#ifdef CONFIG_CPU_USE_DOMAINS
mcr p15, 0, r6, c3, c0, 0 @ Set domain register
#endif
mov r5, r0
@@ -842,7 +826,7 @@ __kuser_helper_start:
*/
__kuser_memory_barrier: @ 0xffff0fa0
- smp_dmb
+ smp_dmb arm
usr_ret lr
.align 5
@@ -959,7 +943,7 @@ kuser_cmpxchg_fixup:
#else
- smp_dmb
+ smp_dmb arm
1: ldrex r3, [r2]
subs r3, r3, r0
strexeq r3, r1, [r2]
@@ -1245,3 +1229,9 @@ cr_alignment:
.space 4
cr_no_alignment:
.space 4
+
+#ifdef CONFIG_MULTI_IRQ_HANDLER
+ .globl handle_arch_irq
+handle_arch_irq:
+ .space 4
+#endif
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