diff mbox series

[v2,2/5] mips: Perform early low memory test

Message ID 20190503175041.7949-3-fancer.lancer@gmail.com (mailing list archive)
State Accepted
Headers show
Series mips: Post-bootmem-memblock transition fixes | expand

Commit Message

Serge Semin May 3, 2019, 5:50 p.m. UTC 
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>
---
 arch/mips/kernel/setup.c | 2 ++
 1 file changed, 2 insertions(+)

Comments

Paul Burton May 6, 2019, 7:11 p.m. UTC | #1 
Hello,

Serge Semin wrote:
> 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>

Applied to mips-next.

Thanks,
    Paul

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diff mbox series

Patch

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)