From: Zephyr Li <fritchleybohrer@gmail.com>
Date: Thu, 11 Jun 2026 12:58:34 +0000 (+0800)
Subject: lscpu: show RISC-V MMU mode
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b746c53978bb19b142807b174bc0381fc257c7d4;p=thirdparty%2Futil-linux.git

lscpu: show RISC-V MMU mode

Signed-off-by: Zephyr Li <fritchleybohrer@gmail.com>
---

diff --git a/sys-utils/lscpu-cputype.c b/sys-utils/lscpu-cputype.c
index a56ace76c..9b43f0e3f 100644
--- a/sys-utils/lscpu-cputype.c
+++ b/sys-utils/lscpu-cputype.c
@@ -105,6 +105,7 @@ void lscpu_unref_cputype(struct lscpu_cputype *ct)
 		free(ct->static_mhz);
 		free(ct->dynamic_mhz);
 		free(ct->isa);
+		free(ct->mmu);
 		free(ct);
 	}
 }
@@ -202,6 +203,7 @@ enum {
 	PAT_VENDOR,
 	PAT_CACHE,
 	PAT_ISA,
+	PAT_MMU,
 };
 
 /*
@@ -243,6 +245,7 @@ static const struct cpuinfo_pattern type_patterns[] =
 	DEF_PAT_CPUTYPE( "max thread id",	PAT_MAX_THREAD_ID, mtid),	/* s390 */
 	DEF_PAT_CPUTYPE( "microcode",	        PAT_MICROCODE, microcode),
 	DEF_PAT_CPUTYPE( "mimpid",		PAT_MODEL,	model),		/* riscv */
+	DEF_PAT_CPUTYPE( "mmu",			PAT_MMU,	mmu),		/* riscv */
 	DEF_PAT_CPUTYPE( "model",		PAT_MODEL,	model),
 	DEF_PAT_CPUTYPE( "model name",		PAT_MODEL_NAME,	modelname),
 	DEF_PAT_CPUTYPE( "mvendorid",		PAT_VENDOR,	vendor),	/* riscv */
diff --git a/sys-utils/lscpu.c b/sys-utils/lscpu.c
index 0c8bdf63b..66ad03f4b 100644
--- a/sys-utils/lscpu.c
+++ b/sys-utils/lscpu.c
@@ -973,6 +973,10 @@ print_summary_cputype(struct lscpu_cxt *cxt,
 		lscpu_format_isa_riscv(ct);
 		add_summary_s(tb, sec, _("ISA:"), ct->isa);
 	}
+
+	if (ct->mmu && is_riscv(ct)) {
+		add_summary_s(tb, sec, _("MMU:"), ct->mmu);
+	}
 }
 
 /*
diff --git a/sys-utils/lscpu.h b/sys-utils/lscpu.h
index b01f081e8..476312d18 100644
--- a/sys-utils/lscpu.h
+++ b/sys-utils/lscpu.h
@@ -115,7 +115,8 @@ struct lscpu_cputype {
 
 	size_t nr_socket_on_cluster; /* the number of sockets if the is_cluster is 1 */
 
-	char	*isa;	/* loongarch */
+	char	*isa;	/* loongarch, riscv */
+	char	*mmu;	/* riscv */
 };
 
 /* dispatching modes */