From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ozlabs.org (ozlabs.org [IPv6:2401:3900:2:1::2]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id EC3BF1A0837 for ; Wed, 4 Jun 2014 17:52:42 +1000 (EST) Date: Wed, 4 Jun 2014 17:52:42 +1000 From: Anton Blanchard To: benh@kernel.crashing.org, paulus@samba.org Subject: [PATCH v2 2/2] powerpc/powernv: Set memory_block_size_bytes to 256MB Message-ID: <20140604175242.76ea60eb@kryten> In-Reply-To: <20140604175047.35b116b3@kryten> References: <20140604175047.35b116b3@kryten> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Cc: linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 --- arch/powerpc/platforms/powernv/setup.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c index 865aab4..8c16a5f 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 }; -- 1.9.1