diff options
author | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-12-03 11:09:48 +0000 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-12-20 15:09:08 +0000 |
commit | 05c74a6cbcfb416286a947668ba32f63d99fe74a (patch) | |
tree | 96f4dd3d5cbc67b14b93e9630f4f02becaa1a66a /arch/arm/mach-vexpress/platsmp.c | |
parent | aec66ba1f75c2030cf66f5a21d1c81aa83aa5d95 (diff) | |
download | linux-05c74a6cbcfb416286a947668ba32f63d99fe74a.tar.bz2 |
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/platsmp.c')
-rw-r--r-- | arch/arm/mach-vexpress/platsmp.c | 43 |
1 files changed, 10 insertions, 33 deletions
diff --git a/arch/arm/mach-vexpress/platsmp.c b/arch/arm/mach-vexpress/platsmp.c index b5a758683668..a0341d14ff2a 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)); } |