Commit 379f1091 authored by Pankaj Dubey's avatar Pankaj Dubey Committed by Krzysztof Kozlowski
Browse files

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: default avatarPankaj Dubey <pankaj.dubey@samsung.com>
Reviewed-by: default avatarAlim Akhtar <alim.akhtar@samsung.com>
Tested-by: default avatarMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: default avatarKrzysztof Kozlowski <krzk@kernel.org>
parent 1001354c

arch/arm/mach-exynos/platsmp.c

+0 −31
Original line number Diff line number Diff line
@@ -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,

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