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Date: Wed, 30 Sep 2009 16:04:34 -0500
From: Russ Anderson <rja@....com>
To: linux-kernel@...r.kernel.org
Cc: mingo@...e.hu, hpa@...or.com, Cliff Wickman <cpw@....com>,
Russ Anderson <rja@....com>
Subject: [PATCH 1/2] x86: UV bios calls to support UV hardware performance counter and topology access
Add UV bios calls to support UV hardware performance counter and
topology access.
Signed-off-by: Russ Anderson <rja@....com>
Acked-by: Cliff Wickman <cpw@....com>
---
This patch only effects UV systems.
arch/x86/include/asm/uv/bios.h | 17 ++++++++--
arch/x86/kernel/apic/x2apic_uv_x.c | 6 +--
arch/x86/kernel/bios_uv.c | 59 +++++++++++++++++++++++++++++++++----
3 files changed, 69 insertions(+), 13 deletions(-)
Index: linux/arch/x86/include/asm/uv/bios.h
===================================================================
--- linux.orig/arch/x86/include/asm/uv/bios.h 2009-09-26 12:19:21.000000000 -0500
+++ linux/arch/x86/include/asm/uv/bios.h 2009-09-29 23:03:17.000000000 -0500
@@ -18,8 +18,8 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
- * Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved.
- * Copyright (c) Russ Anderson
+ * Copyright (c) 2008-2009 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) Russ Anderson <rja@....com>
*/
#include <linux/rtc.h>
@@ -36,7 +36,11 @@ enum uv_bios_cmd {
UV_BIOS_WATCHLIST_ALLOC,
UV_BIOS_WATCHLIST_FREE,
UV_BIOS_MEMPROTECT,
- UV_BIOS_GET_PARTITION_ADDR
+ UV_BIOS_GET_PARTITION_ADDR,
+ UV_BIOS_HWPERF,
+ UV_BIOS_GET_PCI_TOPOLOGY,
+ UV_BIOS_GET_PCIBUS_INFO,
+ UV_BIOS_GET_GEOINFO
};
/*
@@ -98,13 +102,17 @@ extern s64 uv_bios_call(enum uv_bios_cmd
extern s64 uv_bios_call_irqsave(enum uv_bios_cmd, u64, u64, u64, u64, u64);
extern s64 uv_bios_call_reentrant(enum uv_bios_cmd, u64, u64, u64, u64, u64);
-extern s64 uv_bios_get_sn_info(int, int *, long *, long *, long *);
+extern s64 uv_bios_get_sn_info(int, int *, long *, long *, long *, long *);
extern s64 uv_bios_freq_base(u64, u64 *);
extern int uv_bios_mq_watchlist_alloc(int, unsigned long, unsigned int,
unsigned long *);
extern int uv_bios_mq_watchlist_free(int, int);
extern s64 uv_bios_change_memprotect(u64, u64, enum uv_memprotect);
extern s64 uv_bios_reserved_page_pa(u64, u64 *, u64 *, u64 *);
+extern s64 uv_bios_hwperf(u64, u64 , u64 , u64, u64 *, int *);
+extern s64 uv_bios_get_pci_topology(u64, u64);
+extern s64 uv_bios_get_hubdev_info(u64, u64);
+extern s64 uv_bios_get_geoinfo(u64, u64, u64);
extern void uv_bios_init(void);
@@ -113,6 +121,7 @@ extern int uv_type;
extern long sn_partition_id;
extern long sn_coherency_id;
extern long sn_region_size;
+extern long system_serial_number;
#define partition_coherence_id() (sn_coherency_id)
extern struct kobject *sgi_uv_kobj; /* /sys/firmware/sgi_uv */
Index: linux/arch/x86/kernel/apic/x2apic_uv_x.c
===================================================================
--- linux.orig/arch/x86/kernel/apic/x2apic_uv_x.c 2009-09-26 12:30:45.000000000 -0500
+++ linux/arch/x86/kernel/apic/x2apic_uv_x.c 2009-09-30 15:22:39.000000000 -0500
@@ -5,7 +5,7 @@
*
* SGI UV APIC functions (note: not an Intel compatible APIC)
*
- * Copyright (C) 2007-2008 Silicon Graphics, Inc. All rights reserved.
+ * Copyright (C) 2007-2009 Silicon Graphics, Inc. All rights reserved.
*/
#include <linux/cpumask.h>
#include <linux/hardirq.h>
@@ -619,8 +619,8 @@ void __init uv_system_init(void)
}
uv_bios_init();
- uv_bios_get_sn_info(0, &uv_type, &sn_partition_id,
- &sn_coherency_id, &sn_region_size);
+ uv_bios_get_sn_info(0, &uv_type, &sn_partition_id, &sn_coherency_id,
+ &sn_region_size, &system_serial_number);
uv_rtc_init();
for_each_present_cpu(cpu) {
Index: linux/arch/x86/kernel/bios_uv.c
===================================================================
--- linux.orig/arch/x86/kernel/bios_uv.c 2009-09-26 12:19:21.000000000 -0500
+++ linux/arch/x86/kernel/bios_uv.c 2009-09-29 23:09:28.000000000 -0500
@@ -15,8 +15,8 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
- * Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved.
- * Copyright (c) Russ Anderson
+ * Copyright (c) 2008-2009 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) Russ Anderson <rja@....com>
*/
#include <linux/efi.h>
@@ -30,6 +30,7 @@ static struct uv_systab uv_systab;
s64 uv_bios_call(enum uv_bios_cmd which, u64 a1, u64 a2, u64 a3, u64 a4, u64 a5)
{
struct uv_systab *tab = &uv_systab;
+ s64 ret;
if (!tab->function)
/*
@@ -37,9 +38,11 @@ s64 uv_bios_call(enum uv_bios_cmd which,
*/
return BIOS_STATUS_UNIMPLEMENTED;
- return efi_call6((void *)__va(tab->function),
- (u64)which, a1, a2, a3, a4, a5);
+ ret = efi_call6((void *)__va(tab->function), (u64)which,
+ a1, a2, a3, a4, a5);
+ return ret;
}
+EXPORT_SYMBOL(uv_bios_call);
s64 uv_bios_call_irqsave(enum uv_bios_cmd which, u64 a1, u64 a2, u64 a3,
u64 a4, u64 a5)
@@ -73,11 +76,13 @@ long sn_coherency_id;
EXPORT_SYMBOL_GPL(sn_coherency_id);
long sn_region_size;
EXPORT_SYMBOL_GPL(sn_region_size);
+long system_serial_number;
+EXPORT_SYMBOL_GPL(system_serial_number);
int uv_type;
s64 uv_bios_get_sn_info(int fc, int *uvtype, long *partid, long *coher,
- long *region)
+ long *region, long *ssn)
{
s64 ret;
u64 v0, v1;
@@ -97,6 +102,8 @@ s64 uv_bios_get_sn_info(int fc, int *uvt
*coher = part.coherence_id;
if (region)
*region = part.region_size;
+ if (ssn)
+ *ssn = v1;
return ret;
}
@@ -158,6 +165,47 @@ s64 uv_bios_freq_base(u64 clock_type, u6
}
EXPORT_SYMBOL_GPL(uv_bios_freq_base);
+s64 uv_bios_hwperf(u64 nasid, u64 opcode, u64 arg0, u64 arg1,
+ u64 *ptdata, int *v0)
+{
+ s64 ret;
+
+ ret = uv_bios_call(UV_BIOS_HWPERF, nasid, opcode,
+ arg0, arg1, (u64)ptdata);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(uv_bios_hwperf);
+
+s64 uv_bios_get_pci_topology(u64 buf, u64 len)
+{
+ s64 ret;
+
+ ret = uv_bios_call(UV_BIOS_GET_PCI_TOPOLOGY, buf, len, 0, 0, 0);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(uv_bios_get_pci_topology);
+
+s64 uv_bios_get_geoinfo(u64 nasid, u64 buf, u64 len)
+{
+ s64 ret;
+
+ ret = uv_bios_call(UV_BIOS_GET_GEOINFO, nasid, buf, len, 0, 0);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(uv_bios_get_geoinfo);
+
+s64 uv_bios_get_hubdev_info(u64 nasid, u64 buf)
+{
+ s64 ret;
+
+ ret = uv_bios_call(UV_BIOS_GET_PCIBUS_INFO, nasid, buf, 0, 0, 0);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(uv_bios_get_hubdev_info);
#ifdef CONFIG_EFI
void uv_bios_init(void)
@@ -189,4 +237,3 @@ void uv_bios_init(void)
void uv_bios_init(void) { }
#endif
-
--
Russ Anderson, OS RAS/Partitioning Project Lead
SGI - Silicon Graphics Inc rja@....com
--
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