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x86/platform/uv: Add and export uv_bios_* functions

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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
This commit is contained in:
Justin Ernst 2020-11-25 11:54:41 -06:00 committed by Borislav Petkov
parent 8f061abbf5
commit 9a3c425cfd
3 changed files with 207 additions and 0 deletions
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49
arch/x86/include/asm/uv/bios.h
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@ -28,6 +28,20 @@ enum uv_bios_cmd {
UV_BIOS_SET_LEGACY_VGA_TARGET
};
#define UV_BIOS_EXTRA 0x10000
#define UV_BIOS_GET_PCI_TOPOLOGY 0x10001
#define UV_BIOS_GET_GEOINFO 0x10003
#define UV_BIOS_EXTRA_OP_MEM_COPYIN 0x1000
#define UV_BIOS_EXTRA_OP_MEM_COPYOUT 0x2000
#define UV_BIOS_EXTRA_OP_MASK 0x0fff
#define UV_BIOS_EXTRA_GET_HEAPSIZE 1
#define UV_BIOS_EXTRA_INSTALL_HEAP 2
#define UV_BIOS_EXTRA_MASTER_NASID 3
#define UV_BIOS_EXTRA_OBJECT_COUNT (10|UV_BIOS_EXTRA_OP_MEM_COPYOUT)
#define UV_BIOS_EXTRA_ENUM_OBJECTS (12|UV_BIOS_EXTRA_OP_MEM_COPYOUT)
#define UV_BIOS_EXTRA_ENUM_PORTS (13|UV_BIOS_EXTRA_OP_MEM_COPYOUT)
/*
* Status values returned from a BIOS call.
*/
@ -109,6 +123,32 @@ struct uv_systab {
} entry[1]; /* additional entries follow */
};
extern struct uv_systab *uv_systab;
#define UV_BIOS_MAXSTRING 128
struct uv_bios_hub_info {
unsigned int id;
union {
struct {
unsigned long long this_part:1;
unsigned long long is_shared:1;
unsigned long long is_disabled:1;
} fields;
struct {
unsigned long long flags;
unsigned long long reserved;
} b;
} f;
char name[UV_BIOS_MAXSTRING];
char location[UV_BIOS_MAXSTRING];
unsigned int ports;
};
struct uv_bios_port_info {
unsigned int port;
unsigned int conn_id;
unsigned int conn_port;
};
/* (... end of definitions from UV BIOS ...) */
enum {
@ -142,6 +182,15 @@ extern s64 uv_bios_change_memprotect(u64, u64, enum uv_memprotect);
extern s64 uv_bios_reserved_page_pa(u64, u64 *, u64 *, u64 *);
extern int uv_bios_set_legacy_vga_target(bool decode, int domain, int bus);
extern s64 uv_bios_get_master_nasid(u64 sz, u64 *nasid);
extern s64 uv_bios_get_heapsize(u64 nasid, u64 sz, u64 *heap_sz);
extern s64 uv_bios_install_heap(u64 nasid, u64 sz, u64 *heap);
extern s64 uv_bios_obj_count(u64 nasid, u64 sz, u64 *objcnt);
extern s64 uv_bios_enum_objs(u64 nasid, u64 sz, u64 *objbuf);
extern s64 uv_bios_enum_ports(u64 nasid, u64 obj_id, u64 sz, u64 *portbuf);
extern s64 uv_bios_get_geoinfo(u64 nasid, u64 sz, u64 *geo);
extern s64 uv_bios_get_pci_topology(u64 sz, u64 *buf);
extern int uv_bios_init(void);
extern unsigned long get_uv_systab_phys(bool msg);

103
arch/x86/include/asm/uv/uv_geo.h Normal file
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@ -0,0 +1,103 @@
/* SPDX-License-Identifier: GPL-2.0-or-later
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2020 Hewlett Packard Enterprise Development LP. All rights reserved.
*/
#ifndef _ASM_UV_GEO_H
#define _ASM_UV_GEO_H
/* Type declaractions */
/* Size of a geoid_s structure (must be before decl. of geoid_u) */
#define GEOID_SIZE 8
/* Fields common to all substructures */
struct geo_common_s {
unsigned char type; /* What type of h/w is named by this geoid_s */
unsigned char blade;
unsigned char slot; /* slot is IRU */
unsigned char upos;
unsigned char rack;
};
/* Additional fields for particular types of hardware */
struct geo_node_s {
struct geo_common_s common; /* No additional fields needed */
};
struct geo_rtr_s {
struct geo_common_s common; /* No additional fields needed */
};
struct geo_iocntl_s {
struct geo_common_s common; /* No additional fields needed */
};
struct geo_pcicard_s {
struct geo_iocntl_s common;
char bus; /* Bus/widget number */
char slot; /* PCI slot number */
};
/* Subcomponents of a node */
struct geo_cpu_s {
struct geo_node_s node;
unsigned char socket:4, /* Which CPU on the node */
thread:4;
unsigned char core;
};
struct geo_mem_s {
struct geo_node_s node;
char membus; /* The memory bus on the node */
char memslot; /* The memory slot on the bus */
};
union geoid_u {
struct geo_common_s common;
struct geo_node_s node;
struct geo_iocntl_s iocntl;
struct geo_pcicard_s pcicard;
struct geo_rtr_s rtr;
struct geo_cpu_s cpu;
struct geo_mem_s mem;
char padsize[GEOID_SIZE];
};
/* Defined constants */
#define GEO_MAX_LEN 48
#define GEO_TYPE_INVALID 0
#define GEO_TYPE_MODULE 1
#define GEO_TYPE_NODE 2
#define GEO_TYPE_RTR 3
#define GEO_TYPE_IOCNTL 4
#define GEO_TYPE_IOCARD 5
#define GEO_TYPE_CPU 6
#define GEO_TYPE_MEM 7
#define GEO_TYPE_MAX (GEO_TYPE_MEM+1)
static inline int geo_rack(union geoid_u g)
{
return (g.common.type == GEO_TYPE_INVALID) ?
-1 : g.common.rack;
}
static inline int geo_slot(union geoid_u g)
{
return (g.common.type == GEO_TYPE_INVALID) ?
-1 : g.common.upos;
}
static inline int geo_blade(union geoid_u g)
{
return (g.common.type == GEO_TYPE_INVALID) ?
-1 : g.common.blade * 2 + g.common.slot;
}
#endif /* _ASM_UV_GEO_H */

55
arch/x86/platform/uv/bios_uv.c
View File

@ -72,6 +72,7 @@ static s64 uv_bios_call_irqsave(enum uv_bios_cmd which, u64 a1, u64 a2, u64 a3,
long sn_partition_id;
EXPORT_SYMBOL_GPL(sn_partition_id);
long sn_coherency_id;
EXPORT_SYMBOL_GPL(sn_coherency_id);
long sn_region_size;
EXPORT_SYMBOL_GPL(sn_region_size);
long system_serial_number;
@ -171,6 +172,60 @@ int uv_bios_set_legacy_vga_target(bool decode, int domain, int bus)
(u64)decode, (u64)domain, (u64)bus, 0, 0);
}
extern s64 uv_bios_get_master_nasid(u64 size, u64 *master_nasid)
{
return uv_bios_call(UV_BIOS_EXTRA, 0, UV_BIOS_EXTRA_MASTER_NASID, 0,
size, (u64)master_nasid);
}
EXPORT_SYMBOL_GPL(uv_bios_get_master_nasid);
extern s64 uv_bios_get_heapsize(u64 nasid, u64 size, u64 *heap_size)
{
return uv_bios_call(UV_BIOS_EXTRA, nasid, UV_BIOS_EXTRA_GET_HEAPSIZE,
0, size, (u64)heap_size);
}
EXPORT_SYMBOL_GPL(uv_bios_get_heapsize);
extern s64 uv_bios_install_heap(u64 nasid, u64 heap_size, u64 *bios_heap)
{
return uv_bios_call(UV_BIOS_EXTRA, nasid, UV_BIOS_EXTRA_INSTALL_HEAP,
0, heap_size, (u64)bios_heap);
}
EXPORT_SYMBOL_GPL(uv_bios_install_heap);
extern s64 uv_bios_obj_count(u64 nasid, u64 size, u64 *objcnt)
{
return uv_bios_call(UV_BIOS_EXTRA, nasid, UV_BIOS_EXTRA_OBJECT_COUNT,
0, size, (u64)objcnt);
}
EXPORT_SYMBOL_GPL(uv_bios_obj_count);
extern s64 uv_bios_enum_objs(u64 nasid, u64 size, u64 *objbuf)
{
return uv_bios_call(UV_BIOS_EXTRA, nasid, UV_BIOS_EXTRA_ENUM_OBJECTS,
0, size, (u64)objbuf);
}
EXPORT_SYMBOL_GPL(uv_bios_enum_objs);
extern s64 uv_bios_enum_ports(u64 nasid, u64 obj_id, u64 size, u64 *portbuf)
{
return uv_bios_call(UV_BIOS_EXTRA, nasid, UV_BIOS_EXTRA_ENUM_PORTS,
obj_id, size, (u64)portbuf);
}
EXPORT_SYMBOL_GPL(uv_bios_enum_ports);
extern s64 uv_bios_get_geoinfo(u64 nasid, u64 size, u64 *buf)
{
return uv_bios_call(UV_BIOS_GET_GEOINFO, nasid, (u64)buf, size, 0, 0);
}
EXPORT_SYMBOL_GPL(uv_bios_get_geoinfo);
extern s64 uv_bios_get_pci_topology(u64 size, u64 *buf)
{
return uv_bios_call(UV_BIOS_GET_PCI_TOPOLOGY, (u64)buf, size, 0, 0, 0);
}
EXPORT_SYMBOL_GPL(uv_bios_get_pci_topology);
unsigned long get_uv_systab_phys(bool msg)
{
if ((uv_systab_phys == EFI_INVALID_TABLE_ADDR) ||