linux-kernel - [PATCH 11/12] MIPS: Report cluster in /proc/cpuinfo

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Date:   Thu, 19 May 2022 20:51:24 +0200
From:   Dragan Mladjenovic <Dragan.Mladjenovic@...mia.com>
To:     Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Cc:     Paul Burton <paulburton@...nel.org>,
        Ilya Lipnitskiy <ilya.lipnitskiy@...il.com>,
        Hauke Mehrtens <hauke@...ke-m.de>,
        Tiezhu Yang <yangtiezhu@...ngson.cn>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org,
        Chao-ying Fu <cfu@...ecomp.com>
Subject: [PATCH 11/12] MIPS: Report cluster in /proc/cpuinfo

From: Paul Burton <paulburton@...nel.org>

When >= CM3.5 output cluster number.

Signed-off-by: Paul Burton <paulburton@...nel.org>
Signed-off-by: Chao-ying Fu <cfu@...ecomp.com>

diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c
index bb43bf850314..a66e7705315d 100644
--- a/arch/mips/kernel/proc.c
+++ b/arch/mips/kernel/proc.c
@@ -12,6 +12,7 @@
 #include <asm/cpu.h>
 #include <asm/cpu-features.h>
 #include <asm/idle.h>
+#include <asm/mips-cps.h>
 #include <asm/mipsregs.h>
 #include <asm/processor.h>
 #include <asm/prom.h>
@@ -282,6 +283,8 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 	seq_printf(m, "kscratch registers\t: %d\n",
 		      hweight8(cpu_data[n].kscratch_mask));
 	seq_printf(m, "package\t\t\t: %d\n", cpu_data[n].package);
+	if (mips_cm_revision() >= CM_REV_CM3_5)
+		seq_printf(m, "cluster\t\t\t: %d\n", cpu_cluster(&cpu_data[n]));
 	seq_printf(m, "core\t\t\t: %d\n", cpu_core(&cpu_data[n]));
 
 #if defined(CONFIG_MIPS_MT_SMP) || defined(CONFIG_CPU_MIPSR6)
-- 
2.17.1