linux/drivers/misc/sgi-xp/xp_uv.c

/*
 * 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.
 *
 * (C) Copyright 2020 Hewlett Packard Enterprise Development LP
 * Copyright (c) 2008 Silicon Graphics, Inc.  All Rights Reserved.
 */

/*
 * Cross Partition (XP) uv-based functions.
 *
 *      Architecture specific implementation of common functions.
 *
 */

#include <linux/device.h>
#include <asm/uv/uv_hub.h>
#if defined CONFIG_X86_64
#include <asm/uv/bios.h>
#endif
#include "../sgi-gru/grukservices.h"
#include "xp.h"

/*
 * Convert a virtual memory address to a physical memory address.
 */
static unsigned long
xp_pa_uv(void *addr)
{ … }

/*
 * Convert a global physical to socket physical address.
 */
static unsigned long
xp_socket_pa_uv(unsigned long gpa)
{ … }

static enum xp_retval
xp_remote_mmr_read(unsigned long dst_gpa, const unsigned long src_gpa,
		   size_t len)
{ … }


static enum xp_retval
xp_remote_memcpy_uv(unsigned long dst_gpa, const unsigned long src_gpa,
		    size_t len)
{ … }

static int
xp_cpu_to_nasid_uv(int cpuid)
{ … }

static enum xp_retval
xp_expand_memprotect_uv(unsigned long phys_addr, unsigned long size)
{ … }

static enum xp_retval
xp_restrict_memprotect_uv(unsigned long phys_addr, unsigned long size)
{ … }

enum xp_retval
xp_init_uv(void)
{ … }

void
xp_exit_uv(void)
{ … }