Thread (4 messages) flat view 4 messages, 3 authors, 2021-01-19

Re: [PATCH] arm64/cpuinfo: Show right CPU architecture information

From: Will Deacon <will@kernel.org>
Date: 2021-01-19 11:18:18
Also in: lkml

On Tue, Jan 19, 2021 at 06:55:10PM +0800, Liguang Zhang wrote:
quoted hunk ↗ jump to hunk
CPU architecture is assigned to be a fixed value, it should be obtained
from midr register.

Signed-off-by: Liguang Zhang <redacted>
---
 arch/arm64/kernel/cpuinfo.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c
index 77605aec25fe..0bd11e0fe9f2 100644
--- a/arch/arm64/kernel/cpuinfo.c
+++ b/arch/arm64/kernel/cpuinfo.c
@@ -191,7 +191,7 @@ static int c_show(struct seq_file *m, void *v)
 
 		seq_printf(m, "CPU implementer\t: 0x%02x\n",
 			   MIDR_IMPLEMENTOR(midr));
-		seq_printf(m, "CPU architecture: 8\n");
+		seq_printf(m, "CPU architecture: %d\n", MIDR_ARCHITECTURE(midr));
Huh? Won't this always return 0xf?

Will

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