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authorPankaj Dubey <pankaj.dubey@samsung.com>2016-11-04 09:09:21 +0530
committerKrzysztof Kozlowski <krzk@kernel.org>2016-11-05 17:37:10 +0200
commit379f10910c962e3be187317ee3b8e981ba6d3b03 (patch)
tree306d8c1735b3412f660f36f1caa899594940b507 /arch/arm/mach-exynos/platsmp.c
parent1001354ca34179f3db924eb66672442a173147dc (diff)
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>
Diffstat (limited to 'arch/arm/mach-exynos/platsmp.c')
-rw-r--r--arch/arm/mach-exynos/platsmp.c31
1 files changed, 0 insertions, 31 deletions
diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c
index 98ffe1e62ad5..a5d68411a037 100644
--- a/arch/arm/mach-exynos/platsmp.c
+++ b/arch/arm/mach-exynos/platsmp.c
@@ -385,36 +385,6 @@ fail:
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)
{
int i;
@@ -479,7 +449,6 @@ static void exynos_cpu_die(unsigned int cpu)
#endif /* CONFIG_HOTPLUG_CPU */
const struct smp_operations exynos_smp_ops __initconst = {
- .smp_init_cpus = exynos_smp_init_cpus,
.smp_prepare_cpus = exynos_smp_prepare_cpus,
.smp_secondary_init = exynos_secondary_init,
.smp_boot_secondary = exynos_boot_secondary,