summaryrefslogtreecommitdiff
path: root/arch
diff options
context:
space:
mode:
authorYinghai Lu <yhlu.kernel.send@gmail.com>2008-04-18 17:49:15 -0700
committerIngo Molnar <mingo@elte.hu>2008-05-12 21:28:15 +0200
commit0327318445d55808991a63137cfb698a90ab6adf (patch)
tree7f69e3cdb237d38ed675e0206413b16397ff70fd /arch
parent492c2e476eac010962850006c49df326919b284c (diff)
x86_64: simplify the memtest parameter setting
use CONFIG_MEMTEST only. if it is set, will have memtest=0 (disabled) need to have memtest=4 in command line to test more patterns. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/Kconfig30
-rw-r--r--arch/x86/mm/init_64.c5
2 files changed, 10 insertions, 25 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index fe361ae7ef2f..a1a9021146bc 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -419,35 +419,19 @@ config PARAVIRT
endif
-config MEMTEST_BOOTPARAM
- bool "Memtest boot parameter"
+config MEMTEST
+ bool "Memtest"
depends on X86_64
default y
help
This option adds a kernel parameter 'memtest', which allows memtest
- to be disabled at boot. If this option is selected, memtest
- functionality can be disabled with memtest=0 on the kernel
- command line. The purpose of this option is to allow a single
- kernel image to be distributed with memtest built in, but not
- necessarily enabled.
-
+ to be set.
+ memtest=0, mean disabled; -- default
+ memtest=1, mean do 1 test pattern;
+ ...
+ memtest=4, mean do 4 test patterns.
If you are unsure how to answer this question, answer Y.
-config MEMTEST_BOOTPARAM_VALUE
- int "Memtest boot parameter default value (0-4)"
- depends on MEMTEST_BOOTPARAM
- range 0 4
- default 0
- help
- This option sets the default value for the kernel parameter
- 'memtest', which allows memtest to be disabled at boot. If this
- option is set to 0 (zero), the memtest kernel parameter will
- default to 0, disabling memtest at bootup. If this option is
- set to 4, the memtest kernel parameter will default to 4,
- enabling memtest at bootup, and use that as pattern number.
-
- If you are unsure how to answer this question, answer 0.
-
config ACPI_SRAT
def_bool y
depends on X86_32 && ACPI && NUMA && (X86_SUMMIT || X86_GENERICARCH)
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 32ba13b0f818..c6d81316db65 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -431,7 +431,7 @@ static void __init init_gbpages(void)
direct_gbpages = 0;
}
-#ifdef CONFIG_MEMTEST_BOOTPARAM
+#ifdef CONFIG_MEMTEST
static void __init memtest(unsigned long start_phys, unsigned long size,
unsigned pattern)
@@ -493,7 +493,8 @@ static void __init memtest(unsigned long start_phys, unsigned long size,
}
-static int memtest_pattern __initdata = CONFIG_MEMTEST_BOOTPARAM_VALUE;
+/* default is disabled */
+static int memtest_pattern __initdata;
static int __init parse_memtest(char *arg)
{