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x86/platform/uv: Add kernel interfaces for obtaining system info 

Add kernel interfaces used to obtain info for the uv_sysfs driver
to display.

Signed-off-by: Mike Travis <mike.travis@hpe.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Steve Wahl <steve.wahl@hpe.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lkml.kernel.org/r/20201128034227.120869-2-mike.travis@hpe.com
This commit is contained in:
Mike Travis 2020-11-27 21:42:23 -06:00 committed by Borislav Petkov
parent 0c683e9de0
commit a67fffb017
2 changed files with 14 additions and 0 deletions
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2
arch/x86/include/asm/uv/bios.h
View File

@ -200,6 +200,8 @@ extern long sn_partition_id;
extern long sn_coherency_id;
extern long sn_region_size;
extern long system_serial_number;
extern ssize_t uv_get_archtype(char *buf, int len);
extern int uv_get_hubless_system(void);
extern struct kobject *sgi_uv_kobj; /* /sys/firmware/sgi_uv */

12
arch/x86/kernel/apic/x2apic_uv_x.c
View File

@ -502,6 +502,18 @@ enum uv_system_type get_uv_system_type(void)
return uv_system_type;
}
int uv_get_hubless_system(void)
{
return uv_hubless_system;
}
EXPORT_SYMBOL_GPL(uv_get_hubless_system);
ssize_t uv_get_archtype(char *buf, int len)
{
return scnprintf(buf, len, "%s/%s", uv_archtype, oem_table_id);
}
EXPORT_SYMBOL_GPL(uv_get_archtype);
int is_uv_system(void)
{
return uv_system_type != UV_NONE;