Module Name: src
Committed By: hans
Date: Fri Feb 28 13:13:41 UTC 2025
Modified Files:
src/sys/arch/vax/vsa: lcg.c
Log Message:
vax/lcg(4): Check vax_siedata in lcg_match() and lcgcnprobe() as well.
LCG only exists on two specific VAXstation models, but not the MicroVAXen
sharing the same board type.
PR port-vax/59109: Booting 10.1 fails on Microvax 3100 model 80
To generate a diff of this commit:
cvs rdiff -u -r1.12 -r1.13 src/sys/arch/vax/vsa/lcg.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/vax/vsa/lcg.c
diff -u src/sys/arch/vax/vsa/lcg.c:1.12 src/sys/arch/vax/vsa/lcg.c:1.13
--- src/sys/arch/vax/vsa/lcg.c:1.12 Thu Feb 27 15:31:06 2025
+++ src/sys/arch/vax/vsa/lcg.c Fri Feb 28 13:13:41 2025
@@ -1,4 +1,4 @@
-/* $NetBSD: lcg.c,v 1.12 2025/02/27 15:31:06 riastradh Exp $ */
+/* $NetBSD: lcg.c,v 1.13 2025/02/28 13:13:41 hans Exp $ */
/*
* LCG accelerated framebuffer driver
* Copyright (c) 2003, 2004 Blaz Antonic
@@ -34,7 +34,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: lcg.c,v 1.12 2025/02/27 15:31:06 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: lcg.c,v 1.13 2025/02/28 13:13:41 hans Exp $");
#define LCG_NO_ACCEL
@@ -435,9 +435,23 @@ lcg_match(struct device *parent, struct
struct vsbus_attach_args *va = aux;
volatile char * const ch = (char *)va->va_addr;
+ /*
+ * Check the VAX board type. LCG can exist on two board types:
+ * - KA46 (VAXstation 4000/60 or MicroVAX 3100/80)
+ * - KA48 (VAXstation 4000 VLC or MicroVAX 3100/m{30,40}
+ */
if ((vax_boardtype != VAX_BTYP_46) && (vax_boardtype != VAX_BTYP_48))
return 0;
+ /*
+ * LCG supposedly only exists on VAXstations, not the MicroVAXen using
+ * the same board type.
+ *
+ * These are "magic values", taken from vax/locore.c
+ */
+ if ((vax_siedata & 0x3) != 2)
+ return 0;
+
*ch = 1;
if ((*ch & 1) == 0)
return 0;
@@ -953,6 +967,9 @@ lcgcnprobe(struct consdev *cndev)
if ((vax_boardtype != VAX_BTYP_46) && (vax_boardtype != VAX_BTYP_48))
return; /* Only for VS 4000/60 and VLC */
+ if ((vax_siedata & 0x3) != 2)
+ return; /* VAXstation only */
+
if (vax_confdata & 0x100)
return; /* Diagnostic console */
