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authorSerge Semin <fancer.lancer@gmail.com>2019-05-03 20:50:38 +0300
committerPaul Burton <paul.burton@mips.com>2019-05-04 01:26:10 +0300
commit2f5bd0367e7a9e5f5a150500e016a9cb7042803b (patch)
treeacd1fb763a8dd01217a738b0852776fd4fbd61c9 /arch/mips/kernel
parent30c8f4e411fb76f752a193bd945d4b9ef06c2d87 (diff)
downloadlinux-2f5bd0367e7a9e5f5a150500e016a9cb7042803b.tar.xz
mips: Perform early low memory test
memblock subsystem provides a method to optionally test the passed memory region in case if it was requested via special kernel boot argument. Lets add the function at the bottom of the arch_mem_init() method. Testing at this point in the boot sequence should be safe since all critical areas are now reserved and a minimum of allocations have been done. Reviewed-by: Matt Redfearn <matt.redfearn@mips.com> Signed-off-by: Serge Semin <fancer.lancer@gmail.com> Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Thomas Bogendoerfer <tbogendoerfer@suse.de> Cc: Huacai Chen <chenhc@lemote.com> Cc: Stefan Agner <stefan@agner.ch> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Juergen Gross <jgross@suse.com> Cc: Serge Semin <Sergey.Semin@t-platforms.ru> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org
Diffstat (limited to 'arch/mips/kernel')
-rw-r--r--arch/mips/kernel/setup.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index ca493fdf69b0..fbd216b4e929 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -826,6 +826,8 @@ static void __init arch_mem_init(char **cmdline_p)
__pa_symbol(&__nosave_end) - __pa_symbol(&__nosave_begin));
memblock_dump_all();
+
+ early_memtest(PFN_PHYS(min_low_pfn), PFN_PHYS(max_low_pfn));
}
static void __init resource_init(void)