linux-kernel - [PATCH v2 2/2] MIPS: Use memblock_add_node() in early_parse_mem() under CONFIG

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Date:   Tue, 24 May 2022 10:27:50 +0800
From:   Tiezhu Yang <yangtiezhu@...ngson.cn>
To:     Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Cc:     Xuefeng Li <lixuefeng@...ngson.cn>, linux-mips@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2 2/2] MIPS: Use memblock_add_node() in early_parse_mem() under CONFIG_NUMA

Use memblock_add_node to add new memblock region within a NUMA node
in early_parse_mem() under CONFIG_NUMA, otherwise the mem parameter
can not work well.

Signed-off-by: Tiezhu Yang <yangtiezhu@...ngson.cn>
---
 arch/mips/kernel/setup.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 1c7f916..2ca156a 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -37,6 +37,7 @@
 #include <asm/cdmm.h>
 #include <asm/cpu.h>
 #include <asm/debug.h>
+#include <asm/mmzone.h>
 #include <asm/sections.h>
 #include <asm/setup.h>
 #include <asm/smp-ops.h>
@@ -364,7 +365,10 @@ static int __init early_parse_mem(char *p)
 	if (*p == '@')
 		start = memparse(p + 1, &p);
 
-	memblock_add(start, size);
+	if (IS_ENABLED(CONFIG_NUMA))
+		memblock_add_node(start, size, pa_to_nid(start), MEMBLOCK_NONE);
+	else
+		memblock_add(start, size);
 
 	return 0;
 }
-- 
2.1.0