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Diffstat (limited to 'arch/x86/kernel/bios_uv.c')
-rw-r--r--arch/x86/kernel/bios_uv.c39
1 files changed, 33 insertions, 6 deletions
diff --git a/arch/x86/kernel/bios_uv.c b/arch/x86/kernel/bios_uv.c
index b0206a2..8bc57ba 100644
--- a/arch/x86/kernel/bios_uv.c
+++ b/arch/x86/kernel/bios_uv.c
@@ -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@sgi.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, u64 a1, u64 a2, u64 a3, u64 a4, u64 a5)
*/
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_GPL(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 +76,14 @@ 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;
+EXPORT_SYMBOL_GPL(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;
@@ -97,8 +103,11 @@ s64 uv_bios_get_sn_info(int fc, int *uvtype, long *partid, long *coher,
*coher = part.coherence_id;
if (region)
*region = part.region_size;
+ if (ssn)
+ *ssn = v1;
return ret;
}
+EXPORT_SYMBOL_GPL(uv_bios_get_sn_info);
int
uv_bios_mq_watchlist_alloc(unsigned long addr, unsigned int mq_size,
@@ -154,6 +163,25 @@ s64 uv_bios_freq_base(u64 clock_type, u64 *ticks_per_second)
}
EXPORT_SYMBOL_GPL(uv_bios_freq_base);
+/*
+ * uv_bios_set_legacy_vga_target - Set Legacy VGA I/O Target
+ * @decode: true to enable target, false to disable target
+ * @domain: PCI domain number
+ * @bus: PCI bus number
+ *
+ * Returns:
+ * 0: Success
+ * -EINVAL: Invalid domain or bus number
+ * -ENOSYS: Capability not available
+ * -EBUSY: Legacy VGA I/O cannot be retargeted at this time
+ */
+int uv_bios_set_legacy_vga_target(bool decode, int domain, int bus)
+{
+ return uv_bios_call(UV_BIOS_SET_LEGACY_VGA_TARGET,
+ (u64)decode, (u64)domain, (u64)bus, 0, 0);
+}
+EXPORT_SYMBOL_GPL(uv_bios_set_legacy_vga_target);
+
#ifdef CONFIG_EFI
void uv_bios_init(void)
@@ -185,4 +213,3 @@ void uv_bios_init(void)
void uv_bios_init(void) { }
#endif
-
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