From: Magnus Damm <magnus.damm@gmail.com>
To: linux-sh@vger.kernel.org
Subject: [PATCH 01/08] ARM: shmobile: Allow use of boot code for non-SMP case
Date: Thu, 05 Jun 2014 05:15:13 +0000 [thread overview]
Message-ID: <20140605051513.18075.82876.sendpatchset@w520> (raw)
From: Magnus Damm <damm+renesas@opensource.se>
Allow build of platsmp.c and headsmp.S even though
SMP is disabled in the kernel configuration. With
this in place it is possible to share the reset
vector setup code with power management code that
needs to be built even though SMP is disabled.
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
---
arch/arm/mach-shmobile/Makefile | 11 +++++++----
arch/arm/mach-shmobile/headsmp.S | 13 ++++++++-----
2 files changed, 15 insertions(+), 9 deletions(-)
--- 0001/arch/arm/mach-shmobile/Makefile
+++ work/arch/arm/mach-shmobile/Makefile 2014-06-05 10:49:20.000000000 +0900
@@ -34,17 +34,17 @@ obj-$(CONFIG_ARCH_R8A7791) += clock-r8a7
obj-$(CONFIG_ARCH_R7S72100) += clock-r7s72100.o
endif
+# CPU reset vector handling objects
+cpu-y := platsmp.o headsmp.o
+
# SMP objects
-smp-y := platsmp.o headsmp.o
+smp-y := $(cpu-y)
smp-$(CONFIG_ARCH_SH73A0) += smp-sh73a0.o headsmp-scu.o platsmp-scu.o
smp-$(CONFIG_ARCH_R8A7779) += smp-r8a7779.o headsmp-scu.o platsmp-scu.o
smp-$(CONFIG_ARCH_R8A7790) += smp-r8a7790.o platsmp-apmu.o
smp-$(CONFIG_ARCH_R8A7791) += smp-r8a7791.o platsmp-apmu.o
smp-$(CONFIG_ARCH_EMEV2) += smp-emev2.o headsmp-scu.o platsmp-scu.o
-# IRQ objects
-obj-$(CONFIG_ARCH_SH7372) += entry-intc.o
-
# PM objects
obj-$(CONFIG_SUSPEND) += suspend.o
obj-$(CONFIG_CPU_IDLE) += cpuidle.o
@@ -56,6 +56,9 @@ obj-$(CONFIG_ARCH_R8A7779) += pm-r8a7779
obj-$(CONFIG_ARCH_R8A7790) += pm-r8a7790.o pm-rcar.o
obj-$(CONFIG_ARCH_R8A7791) += pm-r8a7791.o pm-rcar.o
+# IRQ objects
+obj-$(CONFIG_ARCH_SH7372) += entry-intc.o
+
# Board objects
ifdef CONFIG_ARCH_SHMOBILE_MULTI
obj-$(CONFIG_MACH_GENMAI) += board-genmai-reference.o
--- 0001/arch/arm/mach-shmobile/headsmp.S
+++ work/arch/arm/mach-shmobile/headsmp.S 2014-06-05 10:48:14.000000000 +0900
@@ -10,14 +10,17 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
-#include <linux/linkage.h>
#include <linux/init.h>
+#include <linux/linkage.h>
+#include <linux/threads.h>
#include <asm/memory.h>
+#ifdef CONFIG_SMP
ENTRY(shmobile_invalidate_start)
bl v7_invalidate_l1
b secondary_startup
ENDPROC(shmobile_invalidate_start)
+#endif
/*
* Reset vector for secondary CPUs.
@@ -68,7 +71,7 @@ shmobile_smp_boot_find_mpidr:
shmobile_smp_boot_next:
add r1, r1, #1
- cmp r1, #CONFIG_NR_CPUS
+ cmp r1, #NR_CPUS
blo shmobile_smp_boot_find_mpidr
b shmobile_smp_sleep
@@ -85,10 +88,10 @@ ENDPROC(shmobile_smp_sleep)
.globl shmobile_smp_mpidr
shmobile_smp_mpidr:
-1: .space CONFIG_NR_CPUS * 4
+1: .space NR_CPUS * 4
.globl shmobile_smp_fn
shmobile_smp_fn:
-2: .space CONFIG_NR_CPUS * 4
+2: .space NR_CPUS * 4
.globl shmobile_smp_arg
shmobile_smp_arg:
-3: .space CONFIG_NR_CPUS * 4
+3: .space NR_CPUS * 4
reply other threads:[~2014-06-05 5:15 UTC|newest]
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