[PATCH 01/25] ARM: pm: make MULTI_CPU and !MULTI_CPU resume paths the same

Russell King - ARM Linux
2011-06-22T15:08:49Z

Eliminate the differences between MULTI_CPU and non-MULTI_CPU resume
paths, making the saved structure identical irrespective of the way
the kernel was configured.

Acked-by: Frank Hofmann <frank.hofmann@tomtom.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
arch/arm/kernel/sleep.S | 12 +++---------
1 files changed, 3 insertions(+), 9 deletions(-)

diff --git a/arch/arm/kernel/sleep.S b/arch/arm/kernel/sleep.S
index 6398ead..97a6577 100644
--- a/arch/arm/kernel/sleep.S
+++ b/arch/arm/kernel/sleep.S
@@ -40,9 +40,11 @@ ENTRY(cpu_suspend)
#else
mov r2, sp @ current virtual SP
ldr r0, =cpu_suspend_size
+ ldr ip, =cpu_do_resume
sub sp, sp, r0 @ allocate CPU state on stack
mov r0, sp @ save pointer
- stmfd sp!, {r1, r2, r3} @ save v:p, virt SP, return fn
+ add ip, ip, r1 @ convert resume fn to phys
+ stmfd sp!, {r1, r2, r3, ip} @ save v:p, virt SP, retfn, phys resume fn
ldr r3, =sleep_save_sp
add r2, sp, r1 @ convert SP to phys
#ifdef CONFIG_SMP
@@ -120,20 +122,12 @@ ENTRY(cpu_resume)
ldr r0, sleep_save_sp @ stack phys addr
#endif
setmode PSR_I_BIT | PSR_F_BIT | SVC_MODE, r1 @ set SVC, irqs off
-#ifdef MULTI_CPU
@ load v:p, stack, return fn, resume fn
ARM( ldmia r0!, {r1, sp, lr, pc} )
THUMB( ldmia r0!, {r1, r2, r3, r4} )
THUMB( mov sp, r2 )
THUMB( mov lr, r3 )
THUMB( bx r4 )
-#else
- @ load v:p, stack, return fn
- ARM( ldmia r0!, {r1, sp, lr} )
-THUMB( ldmia r0!, {r1, r2, lr} )
-THUMB( mov sp, r2 )
- b cpu_do_resume
-#endif
ENDPROC(cpu_resume)

sleep_save_sp:
--
1.7.4.4