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ARM: EXYNOS: Remove smp_init_cpus hook from platsmp.c 

We can safely remove exynos_smp_init_cpus() hook from mach-exynos/platsmp.c,
as all SMP platforms in mach-exynos can rely on DT for CPU core description
instead of determining number of cores from the SCU.

Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
This commit is contained in:
Pankaj Dubey 2016-11-04 09:09:21 +05:30 committed by Krzysztof Kozlowski
parent 1001354ca3
commit 379f10910c
1 changed files with 0 additions and 31 deletions
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31
arch/arm/mach-exynos/platsmp.c
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@ -385,36 +385,6 @@ static int exynos_boot_secondary(unsigned int cpu, struct task_struct *idle)
return pen_release != -1 ? ret : 0; return pen_release != -1 ? ret : 0;
} }
/*
* Initialise the CPU possible map early - this describes the CPUs
* which may be present or become present in the system.
*/
static void __init exynos_smp_init_cpus(void)
{
void __iomem *scu_base = scu_base_addr();
unsigned int i, ncores;
if (read_cpuid_part() == ARM_CPU_PART_CORTEX_A9)
ncores = scu_base ? scu_get_core_count(scu_base) : 1;
else
/*
* CPU Nodes are passed thru DT and set_cpu_possible
* is set by "arm_dt_init_cpu_maps".
*/
return;
/* sanity check */
if (ncores > nr_cpu_ids) {
pr_warn("SMP: %u cores greater than maximum (%u), clipping\n",
ncores, nr_cpu_ids);
ncores = nr_cpu_ids;
}
for (i = 0; i < ncores; i++)
set_cpu_possible(i, true);
}
static void __init exynos_smp_prepare_cpus(unsigned int max_cpus) static void __init exynos_smp_prepare_cpus(unsigned int max_cpus)
{ {
int i; int i;
@ -479,7 +449,6 @@ static void exynos_cpu_die(unsigned int cpu)
#endif /* CONFIG_HOTPLUG_CPU */ #endif /* CONFIG_HOTPLUG_CPU */
const struct smp_operations exynos_smp_ops __initconst = { const struct smp_operations exynos_smp_ops __initconst = {
.smp_init_cpus = exynos_smp_init_cpus,
.smp_prepare_cpus = exynos_smp_prepare_cpus, .smp_prepare_cpus = exynos_smp_prepare_cpus,
.smp_secondary_init = exynos_secondary_init, .smp_secondary_init = exynos_secondary_init,
.smp_boot_secondary = exynos_boot_secondary, .smp_boot_secondary = exynos_boot_secondary,