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yaml
---
r: 163443
b: refs/heads/master
c: f3a8308
h: refs/heads/master
i:
  163441: 5fb3857
  163439: a6adf83
v: v3
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Matt Fleming authored and Paul Mundt committed Aug 18, 2009
1 parent 8f47182 commit 2da4403
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Showing 3 changed files with 25 additions and 12 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 63cd91dfd4976cb9687b07e9a9864912631d2e08
refs/heads/master: f3a8308864f920d2babe76921733d76ec4a11fb8
8 changes: 8 additions & 0 deletions trunk/arch/sh/kernel/cpu/sh3/entry.S
Original file line number Diff line number Diff line change
Expand Up @@ -508,6 +508,14 @@ ENTRY(handle_interrupt)
bsr save_regs ! needs original pr value in k3
mov #-1, k2 ! default vector kept in k2

stc sr, r0 ! get status register
shlr2 r0
and #0x3c, r0
cmp/eq #0x3c, r0
bf 9f
TRACE_IRQS_OFF
9:

! Setup return address and jump to do_IRQ
mov.l 4f, r9 ! fetch return address
lds r9, pr ! put return address in pr
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27 changes: 16 additions & 11 deletions trunk/arch/sh/kernel/entry-common.S
Original file line number Diff line number Diff line change
Expand Up @@ -77,15 +77,6 @@ ENTRY(ret_from_irq)
!
mov #OFF_SR, r0
mov.l @(r0,r15), r0 ! get status register

shlr2 r0
and #0x3c, r0
cmp/eq #0x3c, r0
bt 9f
TRACE_IRQS_ON
9:
mov #OFF_SR, r0
mov.l @(r0,r15), r0 ! get status register
shll r0
shll r0 ! kernel space?
get_current_thread_info r8, r0
Expand All @@ -96,6 +87,7 @@ ENTRY(ret_from_irq)
nop
ENTRY(resume_kernel)
cli
TRACE_IRQS_OFF
mov.l @(TI_PRE_COUNT,r8), r0 ! current_thread_info->preempt_count
tst r0, r0
bf noresched
Expand Down Expand Up @@ -213,12 +205,25 @@ syscall_trace_entry:
mov.l r0, @(OFF_R0,r15) ! Return value

__restore_all:
mov.l 1f, r0
mov #OFF_SR, r0
mov.l @(r0,r15), r0 ! get status register

shlr2 r0
and #0x3c, r0
cmp/eq #0x3c, r0
bt 1f
TRACE_IRQS_ON
bra 2f
nop
1:
TRACE_IRQS_OFF
2:
mov.l 3f, r0
jmp @r0
nop

.align 2
1: .long restore_all
3: .long restore_all

.align 2
syscall_badsys: ! Bad syscall number
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