From 6d97d7a28faf19199da12f2512cc7d37dd373cc0 Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Wed, 4 Jun 2014 17:52:42 +1000 Subject: powerpc/powernv: Set memory_block_size_bytes to 256MB powerpc sets a low SECTION_SIZE_BITS to accomodate small pseries boxes. We default to 16MB memory blocks, and boxes with a lot of memory end up with enormous numbers of sysfs memory nodes. Set a more reasonable default for powernv of 256MB. Signed-off-by: Anton Blanchard Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/platforms/powernv/setup.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'arch/powerpc/platforms/powernv/setup.c') diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c index 865aab40ded7..8c16a5f96728 100644 --- a/arch/powerpc/platforms/powernv/setup.c +++ b/arch/powerpc/platforms/powernv/setup.c @@ -244,6 +244,13 @@ static void pnv_kexec_cpu_down(int crash_shutdown, int secondary) } #endif /* CONFIG_KEXEC */ +#ifdef CONFIG_MEMORY_HOTPLUG_SPARSE +static unsigned long pnv_memory_block_size(void) +{ + return 256UL * 1024 * 1024; +} +#endif + static void __init pnv_setup_machdep_opal(void) { ppc_md.get_boot_time = opal_get_boot_time; @@ -326,4 +333,7 @@ define_machine(powernv) { #ifdef CONFIG_KEXEC .kexec_cpu_down = pnv_kexec_cpu_down, #endif +#ifdef CONFIG_MEMORY_HOTPLUG_SPARSE + .memory_block_size = pnv_memory_block_size, +#endif }; -- cgit v1.2.3