git: 895eeb49239e - main - powerpc/loader: Add CAS support for older CPUs

From: Justin Hibbits <jhibbits_at_FreeBSD.org>
Date: Sat, 17 Jan 2026 18:59:54 UTC
The branch main has been updated by jhibbits:

URL: https://cgit.FreeBSD.org/src/commit/?id=895eeb49239eae947742bc2501836cc774d3467a

commit 895eeb49239eae947742bc2501836cc774d3467a
Author:     Justin Hibbits <jhibbits@FreeBSD.org>
AuthorDate: 2026-01-17 18:55:50 +0000
Commit:     Justin Hibbits <jhibbits@FreeBSD.org>
CommitDate: 2026-01-17 18:59:43 +0000

    powerpc/loader: Add CAS support for older CPUs
    
    QEMU creates a "ibm,arch-vec-5-platform-support" property for all
    pseries emulations.  Add POWER7 and POWER6 to the CAS list, more can be
    added later as needed/desired.
    
    MFC after:      1 week
---
 stand/powerpc/ofw/cas.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/stand/powerpc/ofw/cas.c b/stand/powerpc/ofw/cas.c
index 45fd4d8d567f..af1497e98119 100644
--- a/stand/powerpc/ofw/cas.c
+++ b/stand/powerpc/ofw/cas.c
@@ -36,6 +36,9 @@
 #endif
 
 /* PVR */
+#define PVR_CPU_P6		0x003e0000
+#define PVR_CPU_P7		0x003f0000
+#define PVR_CPU_P7PLUS		0x004a0000
 #define PVR_CPU_P8E		0x004b0000
 #define PVR_CPU_P8NVL		0x004c0000
 #define PVR_CPU_P8		0x004d0000
@@ -134,6 +137,9 @@ static struct ibm_arch_vec {
 	struct opt_vec5		vec5;
 } __packed ibm_arch_vec = {
 	/* pvr_list */ {
+		{ htobe32(PVR_CPU_MASK), htobe32(PVR_CPU_P6) },
+		{ htobe32(PVR_CPU_MASK), htobe32(PVR_CPU_P7) },
+		{ htobe32(PVR_CPU_MASK), htobe32(PVR_CPU_P7PLUS) },
 		{ htobe32(PVR_CPU_MASK), htobe32(PVR_CPU_P8) },
 		{ htobe32(PVR_CPU_MASK), htobe32(PVR_CPU_P8E) },
 		{ htobe32(PVR_CPU_MASK), htobe32(PVR_CPU_P8NVL) },