CVS commit: src/sys/arch/riscv/riscv

[Nick Hudson]

Module Name:    src
Committed By:   skrll
Date:           Sat Aug 10 07:27:04 UTC 2024

Modified Files:
        src/sys/arch/riscv/riscv: cpu.c

Log Message:
Recognise the T-Head 9-Series CPU^Whart.

>From Rui-Xiang Guo.


To generate a diff of this commit:
cvs rdiff -u -r1.6 -r1.7 src/sys/arch/riscv/riscv/cpu.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.


Modified files:

Index: src/sys/arch/riscv/riscv/cpu.c
diff -u src/sys/arch/riscv/riscv/cpu.c:1.6 src/sys/arch/riscv/riscv/cpu.c:1.7
--- src/sys/arch/riscv/riscv/cpu.c:1.6	Sun Apr  7 22:52:53 2024
+++ src/sys/arch/riscv/riscv/cpu.c	Sat Aug 10 07:27:04 2024
@@ -1,4 +1,4 @@
-/*	$NetBSD: cpu.c,v 1.6 2024/04/07 22:52:53 riastradh Exp $	*/
+/*	$NetBSD: cpu.c,v 1.7 2024/08/10 07:27:04 skrll Exp $	*/
 
 /*-
  * Copyright (c) 2023 The NetBSD Foundation, Inc.
@@ -32,7 +32,7 @@
 #include "opt_multiprocessor.h"
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: cpu.c,v 1.6 2024/04/07 22:52:53 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: cpu.c,v 1.7 2024/08/10 07:27:04 skrll Exp $");
 
 #include <sys/param.h>
 
@@ -69,6 +69,8 @@ u_int   riscv_dcache_align_mask = CACHE_
 
 #define CPU_ARCH_7SERIES	0x8000000000000007
 
+#define CPU_VENDOR_THEAD	0x5b7
+
 struct cpu_arch {
 	uint64_t	 ca_id;
 	const char	*ca_name;
@@ -82,6 +84,14 @@ struct cpu_arch cpu_arch_sifive[] = {
     { },	// terminator
 };
 
+struct cpu_arch cpu_arch_thead[] = {
+    {
+	.ca_id = 0,
+	.ca_name = "9-Series Processor (C9, E9 series)",
+    },
+    { },	// terminator
+};
+
 struct cpu_vendor {
 	uint32_t	 	 cv_id;
 	const char		*cv_name;
@@ -92,6 +102,11 @@ struct cpu_vendor {
 	.cv_name = "SiFive",
 	.cv_arch = cpu_arch_sifive,
     },
+    {
+	.cv_id = CPU_VENDOR_THEAD,
+	.cv_name = "T-Head",
+	.cv_arch = cpu_arch_thead,
+    },
 };
 
 /*