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authorRussell King <rmk+kernel@arm.linux.org.uk>2010-12-03 11:09:48 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-12-20 15:09:08 +0000
commit05c74a6cbcfb416286a947668ba32f63d99fe74a (patch)
tree96f4dd3d5cbc67b14b93e9630f4f02becaa1a66a /arch/arm/mach-vexpress
parentaec66ba1f75c2030cf66f5a21d1c81aa83aa5d95 (diff)
downloadop-kernel-dev-05c74a6cbcfb416286a947668ba32f63d99fe74a.zip
op-kernel-dev-05c74a6cbcfb416286a947668ba32f63d99fe74a.tar.gz
ARM: SMP: consolidate the common parts of smp_prepare_cpus()
There is a certain amount of smp_prepare_cpus() which doesn't belong in the platform support code - that is, code which is invariant to the SMP implementation. Move this code into arch/arm/kernel/smp.c, and add a platform_ prefix to the original function. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-vexpress')
-rw-r--r--arch/arm/mach-vexpress/platsmp.c43
1 files changed, 10 insertions, 33 deletions
diff --git a/arch/arm/mach-vexpress/platsmp.c b/arch/arm/mach-vexpress/platsmp.c
index b5a7586..a0341d1 100644
--- a/arch/arm/mach-vexpress/platsmp.c
+++ b/arch/arm/mach-vexpress/platsmp.c
@@ -17,7 +17,6 @@
#include <linux/io.h>
#include <asm/cacheflush.h>
-#include <asm/localtimer.h>
#include <asm/smp_scu.h>
#include <asm/unified.h>
@@ -136,20 +135,10 @@ void __init smp_init_cpus(void)
set_cpu_possible(i, true);
}
-void __init smp_prepare_cpus(unsigned int max_cpus)
+void __init platform_smp_prepare_cpus(unsigned int max_cpus)
{
- unsigned int ncores = num_possible_cpus();
- unsigned int cpu = smp_processor_id();
int i;
- smp_store_cpu_info(cpu);
-
- /*
- * are we trying to boot more cores than exist?
- */
- if (max_cpus > ncores)
- max_cpus = ncores;
-
/*
* Initialise the present map, which describes the set of CPUs
* actually populated at the present time.
@@ -157,27 +146,15 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
for (i = 0; i < max_cpus; i++)
set_cpu_present(i, true);
+ scu_enable(scu_base_addr());
+
/*
- * Initialise the SCU if there are more than one CPU and let
- * them know where to start.
+ * Write the address of secondary startup into the
+ * system-wide flags register. The boot monitor waits
+ * until it receives a soft interrupt, and then the
+ * secondary CPU branches to this address.
*/
- if (max_cpus > 1) {
- /*
- * Enable the local timer or broadcast device for the
- * boot CPU, but only if we have more than one CPU.
- */
- percpu_timer_setup();
-
- scu_enable(scu_base_addr());
-
- /*
- * Write the address of secondary startup into the
- * system-wide flags register. The boot monitor waits
- * until it receives a soft interrupt, and then the
- * secondary CPU branches to this address.
- */
- writel(~0, MMIO_P2V(V2M_SYS_FLAGSCLR));
- writel(BSYM(virt_to_phys(vexpress_secondary_startup)),
- MMIO_P2V(V2M_SYS_FLAGSSET));
- }
+ writel(~0, MMIO_P2V(V2M_SYS_FLAGSCLR));
+ writel(BSYM(virt_to_phys(vexpress_secondary_startup)),
+ MMIO_P2V(V2M_SYS_FLAGSSET));
}
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