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/*
* 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) 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>
#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)
{
return uv_gpa(addr);
}
static enum xp_retval
xp_remote_memcpy_uv(unsigned long dst_gpa, const unsigned long src_gpa,
size_t len)
{
int ret;
ret = gru_copy_gpa(dst_gpa, src_gpa, len);
if (ret == 0)
return xpSuccess;
dev_err(xp, "gru_copy_gpa() failed, dst_gpa=0x%016lx src_gpa=0x%016lx "
"len=%ld\n", dst_gpa, src_gpa, len);
return xpGruCopyError;
}
static int
xp_cpu_to_nasid_uv(int cpuid)
{
/* ??? Is this same as sn2 nasid in mach/part bitmaps set up by SAL? */
return UV_PNODE_TO_NASID(uv_cpu_to_pnode(cpuid));
}
enum xp_retval
xp_init_uv(void)
{
BUG_ON(!is_uv());
xp_max_npartitions = XP_MAX_NPARTITIONS_UV;
xp_partition_id = 0; /* !!! not correct value */
xp_region_size = 0; /* !!! not correct value */
xp_pa = xp_pa_uv;
xp_remote_memcpy = xp_remote_memcpy_uv;
xp_cpu_to_nasid = xp_cpu_to_nasid_uv;
return xpSuccess;
}
void
xp_exit_uv(void)
{
BUG_ON(!is_uv());
}
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