x86/platform/uv: Add and export uv_bios_* functions
Add additional uv_bios_call() variant functions to expose information needed by the new uv_sysfs driver. This includes the addition of several new data types defined by UV BIOS and used in the new functions. Signed-off-by: Justin Ernst <justin.ernst@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/20201125175444.279074-3-justin.ernst@hpe.com
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@ -28,6 +28,20 @@ enum uv_bios_cmd {
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UV_BIOS_SET_LEGACY_VGA_TARGET
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};
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#define UV_BIOS_EXTRA 0x10000
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#define UV_BIOS_GET_PCI_TOPOLOGY 0x10001
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#define UV_BIOS_GET_GEOINFO 0x10003
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#define UV_BIOS_EXTRA_OP_MEM_COPYIN 0x1000
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#define UV_BIOS_EXTRA_OP_MEM_COPYOUT 0x2000
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#define UV_BIOS_EXTRA_OP_MASK 0x0fff
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#define UV_BIOS_EXTRA_GET_HEAPSIZE 1
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#define UV_BIOS_EXTRA_INSTALL_HEAP 2
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#define UV_BIOS_EXTRA_MASTER_NASID 3
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#define UV_BIOS_EXTRA_OBJECT_COUNT (10|UV_BIOS_EXTRA_OP_MEM_COPYOUT)
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#define UV_BIOS_EXTRA_ENUM_OBJECTS (12|UV_BIOS_EXTRA_OP_MEM_COPYOUT)
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#define UV_BIOS_EXTRA_ENUM_PORTS (13|UV_BIOS_EXTRA_OP_MEM_COPYOUT)
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/*
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* Status values returned from a BIOS call.
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*/
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@ -109,6 +123,32 @@ struct uv_systab {
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} entry[1]; /* additional entries follow */
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};
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extern struct uv_systab *uv_systab;
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#define UV_BIOS_MAXSTRING 128
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struct uv_bios_hub_info {
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unsigned int id;
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union {
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struct {
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unsigned long long this_part:1;
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unsigned long long is_shared:1;
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unsigned long long is_disabled:1;
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} fields;
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struct {
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unsigned long long flags;
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unsigned long long reserved;
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} b;
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} f;
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char name[UV_BIOS_MAXSTRING];
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char location[UV_BIOS_MAXSTRING];
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unsigned int ports;
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};
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struct uv_bios_port_info {
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unsigned int port;
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unsigned int conn_id;
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unsigned int conn_port;
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};
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/* (... end of definitions from UV BIOS ...) */
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enum {
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@ -142,6 +182,15 @@ extern s64 uv_bios_change_memprotect(u64, u64, enum uv_memprotect);
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extern s64 uv_bios_reserved_page_pa(u64, u64 *, u64 *, u64 *);
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extern int uv_bios_set_legacy_vga_target(bool decode, int domain, int bus);
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extern s64 uv_bios_get_master_nasid(u64 sz, u64 *nasid);
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extern s64 uv_bios_get_heapsize(u64 nasid, u64 sz, u64 *heap_sz);
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extern s64 uv_bios_install_heap(u64 nasid, u64 sz, u64 *heap);
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extern s64 uv_bios_obj_count(u64 nasid, u64 sz, u64 *objcnt);
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extern s64 uv_bios_enum_objs(u64 nasid, u64 sz, u64 *objbuf);
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extern s64 uv_bios_enum_ports(u64 nasid, u64 obj_id, u64 sz, u64 *portbuf);
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extern s64 uv_bios_get_geoinfo(u64 nasid, u64 sz, u64 *geo);
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extern s64 uv_bios_get_pci_topology(u64 sz, u64 *buf);
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extern int uv_bios_init(void);
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extern unsigned long get_uv_systab_phys(bool msg);
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103
arch/x86/include/asm/uv/uv_geo.h
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103
arch/x86/include/asm/uv/uv_geo.h
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@ -0,0 +1,103 @@
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/* SPDX-License-Identifier: GPL-2.0-or-later
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 2020 Hewlett Packard Enterprise Development LP. All rights reserved.
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*/
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#ifndef _ASM_UV_GEO_H
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#define _ASM_UV_GEO_H
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/* Type declaractions */
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/* Size of a geoid_s structure (must be before decl. of geoid_u) */
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#define GEOID_SIZE 8
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/* Fields common to all substructures */
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struct geo_common_s {
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unsigned char type; /* What type of h/w is named by this geoid_s */
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unsigned char blade;
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unsigned char slot; /* slot is IRU */
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unsigned char upos;
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unsigned char rack;
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};
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/* Additional fields for particular types of hardware */
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struct geo_node_s {
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struct geo_common_s common; /* No additional fields needed */
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};
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struct geo_rtr_s {
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struct geo_common_s common; /* No additional fields needed */
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};
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struct geo_iocntl_s {
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struct geo_common_s common; /* No additional fields needed */
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};
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struct geo_pcicard_s {
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struct geo_iocntl_s common;
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char bus; /* Bus/widget number */
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char slot; /* PCI slot number */
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};
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/* Subcomponents of a node */
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struct geo_cpu_s {
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struct geo_node_s node;
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unsigned char socket:4, /* Which CPU on the node */
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thread:4;
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unsigned char core;
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};
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struct geo_mem_s {
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struct geo_node_s node;
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char membus; /* The memory bus on the node */
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char memslot; /* The memory slot on the bus */
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};
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union geoid_u {
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struct geo_common_s common;
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struct geo_node_s node;
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struct geo_iocntl_s iocntl;
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struct geo_pcicard_s pcicard;
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struct geo_rtr_s rtr;
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struct geo_cpu_s cpu;
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struct geo_mem_s mem;
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char padsize[GEOID_SIZE];
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};
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/* Defined constants */
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#define GEO_MAX_LEN 48
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#define GEO_TYPE_INVALID 0
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#define GEO_TYPE_MODULE 1
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#define GEO_TYPE_NODE 2
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#define GEO_TYPE_RTR 3
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#define GEO_TYPE_IOCNTL 4
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#define GEO_TYPE_IOCARD 5
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#define GEO_TYPE_CPU 6
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#define GEO_TYPE_MEM 7
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#define GEO_TYPE_MAX (GEO_TYPE_MEM+1)
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static inline int geo_rack(union geoid_u g)
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{
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return (g.common.type == GEO_TYPE_INVALID) ?
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-1 : g.common.rack;
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}
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static inline int geo_slot(union geoid_u g)
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{
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return (g.common.type == GEO_TYPE_INVALID) ?
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-1 : g.common.upos;
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}
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static inline int geo_blade(union geoid_u g)
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{
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return (g.common.type == GEO_TYPE_INVALID) ?
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-1 : g.common.blade * 2 + g.common.slot;
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}
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#endif /* _ASM_UV_GEO_H */
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@ -72,6 +72,7 @@ static s64 uv_bios_call_irqsave(enum uv_bios_cmd which, u64 a1, u64 a2, u64 a3,
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long sn_partition_id;
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EXPORT_SYMBOL_GPL(sn_partition_id);
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long sn_coherency_id;
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EXPORT_SYMBOL_GPL(sn_coherency_id);
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long sn_region_size;
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EXPORT_SYMBOL_GPL(sn_region_size);
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long system_serial_number;
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@ -171,6 +172,60 @@ int uv_bios_set_legacy_vga_target(bool decode, int domain, int bus)
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(u64)decode, (u64)domain, (u64)bus, 0, 0);
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}
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extern s64 uv_bios_get_master_nasid(u64 size, u64 *master_nasid)
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{
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return uv_bios_call(UV_BIOS_EXTRA, 0, UV_BIOS_EXTRA_MASTER_NASID, 0,
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size, (u64)master_nasid);
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}
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EXPORT_SYMBOL_GPL(uv_bios_get_master_nasid);
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extern s64 uv_bios_get_heapsize(u64 nasid, u64 size, u64 *heap_size)
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{
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return uv_bios_call(UV_BIOS_EXTRA, nasid, UV_BIOS_EXTRA_GET_HEAPSIZE,
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0, size, (u64)heap_size);
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}
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EXPORT_SYMBOL_GPL(uv_bios_get_heapsize);
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extern s64 uv_bios_install_heap(u64 nasid, u64 heap_size, u64 *bios_heap)
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{
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return uv_bios_call(UV_BIOS_EXTRA, nasid, UV_BIOS_EXTRA_INSTALL_HEAP,
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0, heap_size, (u64)bios_heap);
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}
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EXPORT_SYMBOL_GPL(uv_bios_install_heap);
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extern s64 uv_bios_obj_count(u64 nasid, u64 size, u64 *objcnt)
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{
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return uv_bios_call(UV_BIOS_EXTRA, nasid, UV_BIOS_EXTRA_OBJECT_COUNT,
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0, size, (u64)objcnt);
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}
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EXPORT_SYMBOL_GPL(uv_bios_obj_count);
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extern s64 uv_bios_enum_objs(u64 nasid, u64 size, u64 *objbuf)
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{
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return uv_bios_call(UV_BIOS_EXTRA, nasid, UV_BIOS_EXTRA_ENUM_OBJECTS,
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0, size, (u64)objbuf);
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}
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EXPORT_SYMBOL_GPL(uv_bios_enum_objs);
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extern s64 uv_bios_enum_ports(u64 nasid, u64 obj_id, u64 size, u64 *portbuf)
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{
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return uv_bios_call(UV_BIOS_EXTRA, nasid, UV_BIOS_EXTRA_ENUM_PORTS,
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obj_id, size, (u64)portbuf);
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}
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EXPORT_SYMBOL_GPL(uv_bios_enum_ports);
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extern s64 uv_bios_get_geoinfo(u64 nasid, u64 size, u64 *buf)
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{
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return uv_bios_call(UV_BIOS_GET_GEOINFO, nasid, (u64)buf, size, 0, 0);
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}
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EXPORT_SYMBOL_GPL(uv_bios_get_geoinfo);
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extern s64 uv_bios_get_pci_topology(u64 size, u64 *buf)
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{
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return uv_bios_call(UV_BIOS_GET_PCI_TOPOLOGY, (u64)buf, size, 0, 0, 0);
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}
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EXPORT_SYMBOL_GPL(uv_bios_get_pci_topology);
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unsigned long get_uv_systab_phys(bool msg)
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{
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if ((uv_systab_phys == EFI_INVALID_TABLE_ADDR) ||
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