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powerpc: Wire up memtest 

Add call to early_memtest() so that kernel compiled with
CONFIG_MEMTEST really perform memtest at startup when requested
via 'memtest' boot parameter.

Tested-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Christophe Leroy 2018-09-28 15:39:20 +00:00 committed by Michael Ellerman
parent 803d690e68
commit d90fe2acd9
2 changed files with 4 additions and 1 deletions
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2
Documentation/admin-guide/kernel-parameters.txt
View File

@ -2404,7 +2404,7 @@
seconds. Use this parameter to check at some seconds. Use this parameter to check at some
other rate. 0 disables periodic checking. other rate. 0 disables periodic checking.
memtest= [KNL,X86,ARM] Enable memtest memtest= [KNL,X86,ARM,PPC] Enable memtest
Format: <integer> Format: <integer>
default : 0 <disable> default : 0 <disable>
Specifies the number of memtest passes to be Specifies the number of memtest passes to be

3
arch/powerpc/kernel/setup-common.c
View File

@ -33,6 +33,7 @@
#include <linux/serial_8250.h> #include <linux/serial_8250.h>
#include <linux/percpu.h> #include <linux/percpu.h>
#include <linux/memblock.h> #include <linux/memblock.h>
#include <linux/bootmem.h>
#include <linux/of_platform.h> #include <linux/of_platform.h>
#include <linux/hugetlb.h> #include <linux/hugetlb.h>
#include <asm/debugfs.h> #include <asm/debugfs.h>
@ -966,6 +967,8 @@ void __init setup_arch(char **cmdline_p)
initmem_init(); initmem_init();
early_memtest(min_low_pfn << PAGE_SHIFT, max_low_pfn << PAGE_SHIFT);
#ifdef CONFIG_DUMMY_CONSOLE #ifdef CONFIG_DUMMY_CONSOLE
conswitchp = &dummy_con; conswitchp = &dummy_con;
#endif #endif