Release 4.11 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.
*
* 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>
#elif defined CONFIG_IA64_GENERIC || defined CONFIG_IA64_SGI_UV
#include <asm/sn/sn_sal.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)
{
return uv_gpa(addr);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Dean Nelson | 17 | 100.00% | 1 | 100.00% |
| Total | 17 | 100.00% | 1 | 100.00% |
/*
* Convert a global physical to socket physical address.
*/
static unsigned long
xp_socket_pa_uv(unsigned long gpa)
{
return uv_gpa_to_soc_phys_ram(gpa);
}
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| Person | Tokens | Prop | Commits | CommitProp |
| Robin Holt | 17 | 100.00% | 1 | 100.00% |
| Total | 17 | 100.00% | 1 | 100.00% |
static enum xp_retval
xp_remote_mmr_read(unsigned long dst_gpa, const unsigned long src_gpa,
size_t len)
{
int ret;
unsigned long *dst_va = __va(uv_gpa_to_soc_phys_ram(dst_gpa));
BUG_ON(!uv_gpa_in_mmr_space(src_gpa));
BUG_ON(len != 8);
ret = gru_read_gpa(dst_va, src_gpa);
if (ret == 0)
return xpSuccess;
dev_err(xp, "gru_read_gpa() failed, dst_gpa=0x%016lx src_gpa=0x%016lx "
"len=%ld\n", dst_gpa, src_gpa, len);
return xpGruCopyError;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Robin Holt | 83 | 96.51% | 1 | 50.00% |
| Dean Nelson | 3 | 3.49% | 1 | 50.00% |
| Total | 86 | 100.00% | 2 | 100.00% |
static enum xp_retval
xp_remote_memcpy_uv(unsigned long dst_gpa, const unsigned long src_gpa,
size_t len)
{
int ret;
if (uv_gpa_in_mmr_space(src_gpa))
return xp_remote_mmr_read(dst_gpa, src_gpa, len);
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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Dean Nelson | 56 | 73.68% | 2 | 66.67% |
| Robin Holt | 20 | 26.32% | 1 | 33.33% |
| Total | 76 | 100.00% | 3 | 100.00% |
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));
}
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| Person | Tokens | Prop | Commits | CommitProp |
| Dean Nelson | 19 | 100.00% | 1 | 100.00% |
| Total | 19 | 100.00% | 1 | 100.00% |
static enum xp_retval
xp_expand_memprotect_uv(unsigned long phys_addr, unsigned long size)
{
int ret;
#if defined CONFIG_X86_64
ret = uv_bios_change_memprotect(phys_addr, size, UV_MEMPROT_ALLOW_RW);
if (ret != BIOS_STATUS_SUCCESS) {
dev_err(xp, "uv_bios_change_memprotect(,, "
"UV_MEMPROT_ALLOW_RW) failed, ret=%d\n", ret);
return xpBiosError;
}
#elif defined CONFIG_IA64_GENERIC || defined CONFIG_IA64_SGI_UV
u64 nasid_array;
ret = sn_change_memprotect(phys_addr, size, SN_MEMPROT_ACCESS_CLASS_1,
&nasid_array);
if (ret != 0) {
dev_err(xp, "sn_change_memprotect(,, "
"SN_MEMPROT_ACCESS_CLASS_1,) failed ret=%d\n", ret);
return xpSalError;
}
#else
#error not a supported configuration
#endif
return xpSuccess;
}
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| Person | Tokens | Prop | Commits | CommitProp |
| Dean Nelson | 109 | 100.00% | 1 | 100.00% |
| Total | 109 | 100.00% | 1 | 100.00% |
static enum xp_retval
xp_restrict_memprotect_uv(unsigned long phys_addr, unsigned long size)
{
int ret;
#if defined CONFIG_X86_64
ret = uv_bios_change_memprotect(phys_addr, size,
UV_MEMPROT_RESTRICT_ACCESS);
if (ret != BIOS_STATUS_SUCCESS) {
dev_err(xp, "uv_bios_change_memprotect(,, "
"UV_MEMPROT_RESTRICT_ACCESS) failed, ret=%d\n", ret);
return xpBiosError;
}
#elif defined CONFIG_IA64_GENERIC || defined CONFIG_IA64_SGI_UV
u64 nasid_array;
ret = sn_change_memprotect(phys_addr, size, SN_MEMPROT_ACCESS_CLASS_0,
&nasid_array);
if (ret != 0) {
dev_err(xp, "sn_change_memprotect(,, "
"SN_MEMPROT_ACCESS_CLASS_0,) failed ret=%d\n", ret);
return xpSalError;
}
#else
#error not a supported configuration
#endif
return xpSuccess;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Dean Nelson | 109 | 100.00% | 1 | 100.00% |
| Total | 109 | 100.00% | 1 | 100.00% |
enum xp_retval
xp_init_uv(void)
{
BUG_ON(!is_uv());
xp_max_npartitions = XP_MAX_NPARTITIONS_UV;
xp_partition_id = sn_partition_id;
xp_region_size = sn_region_size;
xp_pa = xp_pa_uv;
xp_socket_pa = xp_socket_pa_uv;
xp_remote_memcpy = xp_remote_memcpy_uv;
xp_cpu_to_nasid = xp_cpu_to_nasid_uv;
xp_expand_memprotect = xp_expand_memprotect_uv;
xp_restrict_memprotect = xp_restrict_memprotect_uv;
return xpSuccess;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Dean Nelson | 50 | 92.59% | 6 | 85.71% |
| Robin Holt | 4 | 7.41% | 1 | 14.29% |
| Total | 54 | 100.00% | 7 | 100.00% |
void
xp_exit_uv(void)
{
BUG_ON(!is_uv());
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Dean Nelson | 14 | 100.00% | 1 | 100.00% |
| Total | 14 | 100.00% | 1 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Dean Nelson | 411 | 76.68% | 6 | 75.00% |
| Robin Holt | 125 | 23.32% | 2 | 25.00% |
| Total | 536 | 100.00% | 8 | 100.00% |
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