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

diff --git a/arch/x86/include/asm/uv/bios.h b/arch/x86/include/asm/uv/bios.h
index 01ba080887b3708463f98bace62dff4afa9ca9ea..1b6455f881f90e9c948ceeb07b8c4c697a45bebf 100644 (file)
--- a/arch/x86/include/asm/uv/bios.h
+++ b/arch/x86/include/asm/uv/bios.h
@@ -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 */
 

diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 1b98f8c12b9628979d108b0bb6f4f62cd9b2c260..48746031b39ac779c965c00e114bc7b9ee75cceb 100644 (file)
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -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;