2.6.14 boots on sgi altix?

2.6.14 boots on sgi altix?

[Chen, Kenneth W]

Is there something special I need to do to boot 2.6.14 on SGI
altix machine?  I took 7 day old 2.6.14.2 kernel source, and
did the following:

cp arch/ia64/config/sn2_defconfig .config
make oldconfig
make vmlinux

And it resulted with a bug check at very early stage of boot.
The boot log says:

Linux version 2.6.14.2 (root@linux-sgi) (gcc version 3.2.3 20030502 (Red Hat Linux 3.2.3-24)) #3 SMP Thu Nov 17 19:25:56 PST 2005
EFI v1.02 by SGI: SALsystab=0x3002514a60 ACPI 2.0=0x30027a1950
Number of logical nodes in system = 16
Number of memory chunks in system = 16
SAL 2.9: SGI SN2 version 4.4
SAL Platform features: ITC_Drift
SAL: AP wakeup using external interrupt vector 0x12
No logical to physical processor mapping available
kernel BUG at arch/ia64/sn/kernel/setup.c:468!
swapper[0]: bugcheck! 0 [1]
....


2.6.12 boots just fine with the default sn2 config file.

Re: 2.6.14 boots on sgi altix?

[Keith Owens]

On Thu, 17 Nov 2005 19:16:07 -0800, 
"Chen, Kenneth W" <kenneth.w.chen@intel.com> wrote:
>Is there something special I need to do to boot 2.6.14 on SGI
>altix machine?  I took 7 day old 2.6.14.2 kernel source, and
>did the following:
>
>cp arch/ia64/config/sn2_defconfig .config
>make oldconfig
>make vmlinux
>
>And it resulted with a bug check at very early stage of boot.
>The boot log says:
>
>Linux version 2.6.14.2 (root@linux-sgi) (gcc version 3.2.3 20030502 (Red Hat Linux 3.2.3-24)) #3 SMP Thu Nov 17 19:25:56 PST 2005
>EFI v1.02 by SGI: SALsystab=0x3002514a60 ACPI 2.0=0x30027a1950
>Number of logical nodes in system = 16
>Number of memory chunks in system = 16
>SAL 2.9: SGI SN2 version 4.4
>SAL Platform features: ITC_Drift
>SAL: AP wakeup using external interrupt vector 0x12
>No logical to physical processor mapping available
>kernel BUG at arch/ia64/sn/kernel/setup.c:468!
>swapper[0]: bugcheck! 0 [1]

You need a newer version of SAL for kernel 2.6.14.  From memory you
need at least SAL 4.30, but check with your SGI support person.

Re: 2.6.14 boots on sgi altix?

[Jack Steiner]

On Thu, Nov 17, 2005 at 07:16:07PM -0800, Chen, Kenneth W wrote:
> Is there something special I need to do to boot 2.6.14 on SGI
> altix machine?  I took 7 day old 2.6.14.2 kernel source, and
> did the following:

Give this a try. Line numbers may be slightly off - I have a different
version of the tree but this _should_ apply. Untested ...



Index: linux/include/asm/sn/sn_sal.h
=================================--- linux.orig/include/asm/sn/sn_sal.h	2005-11-03 18:07:57.000000000 -0600
+++ linux/include/asm/sn/sn_sal.h	2005-11-17 22:28:22.607430600 -0600
@@ -1018,6 +1018,24 @@ ia64_sn_get_sn_info(int fc, u8 *shubtype
 	ret_stuff.v2 = 0;
 	SAL_CALL_NOLOCK(ret_stuff, SN_SAL_GET_SN_INFO, fc, 0, 0, 0, 0, 0, 0);
 
+/***** BEGIN HACK - temp til old proms no longer supported ********/
+	if (ret_stuff.status = SALRET_NOT_IMPLEMENTED) {
+		int nasid = get_sapicid() & 0xfff;;
+#define SH_SHUB_ID_NODES_PER_BIT_MASK 0x001f000000000000UL                                               
+#define SH_SHUB_ID_NODES_PER_BIT_SHFT 48                                                               
+		if (shubtype) *shubtype = 0;
+		if (nasid_bitmask) *nasid_bitmask = 0x7ff;
+		if (nasid_shift) *nasid_shift = 38;
+		if (systemsize) *systemsize = 10;
+		if (sharing_domain_size) *sharing_domain_size = 8;
+		if (partid) *partid = sn_partition_serial_number;
+		if (coher) *coher = nasid >> 9;
+		if (reg) *reg = (HUB_L((u64 *) LOCAL_MMR_ADDR(SH1_SHUB_ID)) & SH_SHUB_ID_NODES_PER_BIT_MASK) >>
+			SH_SHUB_ID_NODES_PER_BIT_SHFT;
+		return 0;
+	}
+/***** END HACK *******/
+
 	if (ret_stuff.status < 0)
 		return ret_stuff.status;
 
-- 
Thanks

Jack Steiner (steiner@sgi.com)          651-683-5302
Principal Engineer                      SGI - Silicon Graphics, Inc.