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From: Russell King - ARM Linux <linux@arm.linux.org.uk>
To: linux-arm-kernel@lists.infradead.org,
	linux-samsung-soc@vger.kernel.org, linux-omap@vger.kernel.org
Subject: [PATCH 03/25] ARM: pm: extract common code from MULTI_CPU/!MULTI_CPU paths
Date: Wed, 22 Jun 2011 16:09:30 +0100	[thread overview]
Message-ID: <E1QZP3a-0002Vu-E1@rmk-PC.arm.linux.org.uk> (raw)
In-Reply-To: <20110622150816.GT23234@n2100.arm.linux.org.uk>

Very little code is different between these two paths now, so extract
the common code.

Acked-by: Frank Hofmann <frank.hofmann@tomtom.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/sleep.S |   24 ++++++------------------
 1 files changed, 6 insertions(+), 18 deletions(-)

diff --git a/arch/arm/kernel/sleep.S b/arch/arm/kernel/sleep.S
index f8e9251..0a778c3 100644
--- a/arch/arm/kernel/sleep.S
+++ b/arch/arm/kernel/sleep.S
@@ -19,29 +19,13 @@ ENTRY(cpu_suspend)
 	mov	r9, lr
 #ifdef MULTI_CPU
 	ldr	r10, =processor
-	mov	r2, sp			@ current virtual SP
 	ldr	r0, [r10, #CPU_SLEEP_SIZE] @ size of CPU sleep state
 	ldr	ip, [r10, #CPU_DO_RESUME] @ virtual resume function
-	sub	sp, sp, r0		@ allocate CPU state on stack
-	mov	r0, sp			@ save pointer
-	add	ip, ip, r1		@ convert resume fn to phys
-	stmfd	sp!, {r1, r2, ip}	@ save v:p, virt SP, phys resume fn
-	ldr	r3, =sleep_save_sp
-	add	r2, sp, r1		@ convert SP to phys
-#ifdef CONFIG_SMP
-	ALT_SMP(mrc p15, 0, lr, c0, c0, 5)
-	ALT_UP(mov lr, #0)
-	and	lr, lr, #15
-	str	r2, [r3, lr, lsl #2]	@ save phys SP
 #else
-	str	r2, [r3]		@ save phys SP
-#endif
-	mov	lr, pc
-	ldr	pc, [r10, #CPU_DO_SUSPEND] @ save CPU state
-#else
-	mov	r2, sp			@ current virtual SP
 	ldr	r0, =cpu_suspend_size
 	ldr	ip, =cpu_do_resume
+#endif
+	mov	r2, sp			@ current virtual SP
 	sub	sp, sp, r0		@ allocate CPU state on stack
 	mov	r0, sp			@ save pointer
 	add	ip, ip, r1		@ convert resume fn to phys
@@ -56,6 +40,10 @@ ENTRY(cpu_suspend)
 #else
 	str	r2, [r3]		@ save phys SP
 #endif
+#ifdef MULTI_CPU
+	mov	lr, pc
+	ldr	pc, [r10, #CPU_DO_SUSPEND] @ save CPU state
+#else
 	bl	cpu_do_suspend
 #endif
 
-- 
1.7.4.4


  parent reply	other threads:[~2011-06-22 15:16 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-06-22 15:08 [PATCH 00/25 v2] Re-jig cpu_suspend for a saner calling convention Russell King - ARM Linux
2011-06-22 15:08 ` [PATCH 01/25] ARM: pm: make MULTI_CPU and !MULTI_CPU resume paths the same Russell King - ARM Linux
2011-06-22 15:09 ` [PATCH 02/25] ARM: pm: move return address (for cpu_resume) to top of stack Russell King - ARM Linux
2011-06-22 15:09 ` Russell King - ARM Linux [this message]
2011-06-22 15:09 ` [PATCH 04/25] ARM: pm: preserve r4 - r11 across a suspend Russell King - ARM Linux
2011-06-22 15:10 ` [PATCH 05/25] ARM: pm: reallocate registers to avoid r2, r3 Russell King - ARM Linux
2011-06-22 15:10 ` [PATCH 06/25] ARM: pm: rejig suspend follow-on function calling convention Russell King - ARM Linux
2011-06-22 15:10 ` [PATCH 07/25] ARM: pm: move sa1100 to use proper suspend func arg0 Russell King - ARM Linux
2011-06-22 15:11 ` [PATCH 08/25] ARM: pm: convert cpu_suspend() to a normal function Russell King - ARM Linux
2011-06-22 15:11 ` [PATCH 09/25] ARM: pm: plat-s3c24xx: cleanup s3c_cpu_save Russell King - ARM Linux
2011-06-22 15:11 ` [PATCH 10/25] ARM: pm: sa1100: cleanup sa1100_cpu_suspend Russell King - ARM Linux
2011-06-22 15:12 ` [PATCH 11/25] ARM: pm: mach-s5pv210: cleanup s3c_cpu_save Russell King - ARM Linux
2011-06-22 15:12 ` [PATCH 12/25] ARM: pm: mach-exynos4: " Russell King - ARM Linux
2011-06-22 15:12 ` [PATCH 13/25] ARM: pm: mach-s3c64xx: " Russell King - ARM Linux
2011-06-22 15:13 ` [PATCH 14/25] ARM: pm: pxa: cleanup PXA suspend code Russell King - ARM Linux
2011-06-22 15:13 ` [PATCH 15/25] ARM: pm: sa1100: move cpu_suspend into C code Russell King - ARM Linux
2011-06-22 15:13 ` [PATCH 16/25] ARM: pm: pxa: " Russell King - ARM Linux
2011-06-22 15:14 ` [PATCH 17/25] ARM: pm: move cpu_init() call into core code Russell King - ARM Linux
2011-06-22 15:14 ` [PATCH 18/25] ARM: pm: arrange for cpu_proc_init() to be called on resume Russell King - ARM Linux
2011-06-22 15:14 ` [PATCH 19/25] ARM: pm: sa1100: no need to re-enable clock switching Russell King - ARM Linux
2011-06-22 15:15 ` [PATCH 20/25] ARM: pm: samsung: move cpu_suspend into C code Russell King - ARM Linux
2011-06-22 15:15 ` [PATCH 21/25] ARM: pm: samsung: no need to call flush_cache_all() Russell King - ARM Linux
2011-06-22 15:15 ` [PATCH 22/25] ARM: pm: omap: no need to save all registers in sleep34xx.S Russell King - ARM Linux
2011-06-22 15:16 ` [PATCH 23/25] ARM: pm: omap34xx: remove misleading comment and use of r9 Russell King - ARM Linux
2011-06-22 15:16 ` [PATCH 24/25] ARM: pm: ensure ARMv7 CPUs save and restore the TLS register Russell King - ARM Linux
2011-06-22 15:16 ` [PATCH 25/25] ARM: pm: omap34xx: convert to generic suspend/resume support Russell King - ARM Linux
2011-06-22 16:10   ` Russell King - ARM Linux
2011-06-22 23:33     ` Santosh Shilimkar
2011-06-23 10:47       ` Russell King - ARM Linux
2011-06-23  6:33   ` Tony Lindgren
2011-06-23 10:06   ` Russell King - ARM Linux
2011-06-23 10:21     ` Russell King - ARM Linux
2011-06-23 19:05   ` Kevin Hilman
2011-06-23 20:37     ` Kevin Hilman
2011-06-23 21:57     ` Kevin Hilman
2011-06-22 21:01 ` [PATCH 00/25 v2] Re-jig cpu_suspend for a saner calling convention Russell King - ARM Linux
2011-06-22 23:26   ` Santosh Shilimkar

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