From: Daniel J Blueman <daniel@numascale.com>
To: Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
Bjorn Helgaas <bhelgaas@google.com>
Cc: Daniel J Blueman <daniel@numascale.com>,
x86@kernel.org, linux-kernel@vger.kernel.org,
linux-pci@vger.kernel.org, Steffen Persvold <sp@numascale.com>
Subject: [PATCH v2 5/5] Numachip: use 2GB memory block size
Date: Sun, 19 Oct 2014 09:45:52 +0800 [thread overview]
Message-ID: <1413683152-31302-5-git-send-email-daniel@numascale.com> (raw)
In-Reply-To: <1413683152-31302-1-git-send-email-daniel@numascale.com>
Use appropriate memory block size to reduce sysfs entry creation time
by 16x.
Boot-tested with the four permutations of X86_UV and X86_NUMACHIP.
Signed-off-by: Daniel J Blueman <daniel@numascale.com>
---
arch/x86/mm/init_64.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 5621c47..22ea6de 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -53,6 +53,7 @@
#include <asm/cacheflush.h>
#include <asm/init.h>
#include <asm/uv/uv.h>
+#include <asm/numachip/numachip.h>
#include <asm/setup.h>
#include "mm_internal.h"
@@ -1235,9 +1236,9 @@ static unsigned long probe_memory_block_size(void)
/* start from 2g */
unsigned long bz = 1UL<<31;
-#ifdef CONFIG_X86_UV
- if (is_uv_system()) {
- printk(KERN_INFO "UV: memory block size 2GB\n");
+#ifdef CONFIG_X86_64
+ if (is_uv_system() || is_numachip_system()) {
+ pr_info("Memory block size 2GB for large-SMP system\n");
return 2UL * 1024 * 1024 * 1024;
}
#endif
--
1.9.1
next prev parent reply other threads:[~2014-10-19 1:47 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-19 1:45 [PATCH v2 1/5] Numachip: Fix build failure with trunk GCC Daniel J Blueman
2014-10-19 1:45 ` [PATCH v2 2/5] Numachip: APIC fixes Daniel J Blueman
2014-10-19 9:24 ` Ingo Molnar
2014-10-19 1:45 ` [PATCH v2 3/5] Numachip: Add safe is-present function Daniel J Blueman
2014-10-19 1:45 ` [PATCH v2 4/5] Numachip: APIC driver cleanups Daniel J Blueman
2014-10-19 1:45 ` Daniel J Blueman [this message]
2014-10-19 9:23 ` [PATCH v2 5/5] Numachip: use 2GB memory block size Ingo Molnar
2014-10-20 7:03 ` Daniel J Blueman
2014-10-20 12:02 ` Ingo Molnar
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