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

diff --git a/arch/x86/include/asm/uv/bios.h b/arch/x86/include/asm/uv/bios.h
index 08b3d81..01ba080 100644 (file)
--- a/arch/x86/include/asm/uv/bios.h
+++ b/arch/x86/include/asm/uv/bios.h
@@ -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);
 

diff --git a/arch/x86/include/asm/uv/uv_geo.h b/arch/x86/include/asm/uv/uv_geo.h
new file mode 100644 (file)
index 0000000..f241451
--- /dev/null
+++ b/arch/x86/include/asm/uv/uv_geo.h
@@ -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 */

diff --git a/arch/x86/platform/uv/bios_uv.c b/arch/x86/platform/uv/bios_uv.c
index 54511ea..bf31af3 100644 (file)
--- a/arch/x86/platform/uv/bios_uv.c
+++ b/arch/x86/platform/uv/bios_uv.c
@@ -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) ||