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[IA64] machvec support for SGI UV platform

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This patch adds the basic IA64 machvec infrastructure to support
the SGI "UV" platform.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Jack Steiner
2008-05-06 15:18:57 -05:00
committed by Tony Luck
parent 7868f1ed84
commit 2224661494
9 changed files with 182 additions and 2 deletions
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arch/ia64/Kconfig
+13
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@@ -135,6 +135,7 @@ config IA64_GENERIC
HP-zx1/sx1000 For HP systems
HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
SGI-SN2 For SGI Altix systems
SGI-UV For SGI UV systems
Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
If you don't know what to do, choose "generic".
@@ -170,6 +171,18 @@ config IA64_SGI_SN2
to select this option. If in doubt, select ia64 generic support
instead.
config IA64_SGI_UV`
bool "SGI-UV`"
select NUMA
select ACPI_NUMA
select SWIOTLB
help
Selecting this option will optimize the kernel for use on UV based
systems, but the resulting kernel binary will not run on other
types of ia64 systems. If you have an SGI UV system, it's safe
to select this option. If in doubt, select ia64 generic support
instead.
config IA64_HP_SIM
bool "Ski-simulator"
select SWIOTLB
arch/ia64/Makefile
+1 -1
View File
@@ -63,7 +63,7 @@ drivers-$(CONFIG_PCI) += arch/ia64/pci/
drivers-$(CONFIG_IA64_HP_SIM) += arch/ia64/hp/sim/
drivers-$(CONFIG_IA64_HP_ZX1) += arch/ia64/hp/common/ arch/ia64/hp/zx1/
drivers-$(CONFIG_IA64_HP_ZX1_SWIOTLB) += arch/ia64/hp/common/ arch/ia64/hp/zx1/
drivers-$(CONFIG_IA64_GENERIC) += arch/ia64/hp/common/ arch/ia64/hp/zx1/ arch/ia64/hp/sim/ arch/ia64/sn/
drivers-$(CONFIG_IA64_GENERIC) += arch/ia64/hp/common/ arch/ia64/hp/zx1/ arch/ia64/hp/sim/ arch/ia64/sn/ arch/ia64/uv/
drivers-$(CONFIG_OPROFILE) += arch/ia64/oprofile/
boot := arch/ia64/hp/sim/boot
arch/ia64/kernel/acpi.c
+6 -1
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@@ -117,7 +117,10 @@ acpi_get_sysname(void)
if (!strcmp(hdr->oem_id, "HP")) {
return "hpzx1";
} else if (!strcmp(hdr->oem_id, "SGI")) {
return "sn2";
if (!strcmp(hdr->oem_table_id + 4, "UV"))
return "uv";
else
return "sn2";
}
return "dig";
@@ -130,6 +133,8 @@ acpi_get_sysname(void)
return "hpzx1_swiotlb";
# elif defined (CONFIG_IA64_SGI_SN2)
return "sn2";
# elif defined (CONFIG_IA64_SGI_UV)
return "uv";
# elif defined (CONFIG_IA64_DIG)
return "dig";
# else
arch/ia64/uv/Makefile
+12
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@@ -0,0 +1,12 @@
# arch/ia64/uv/Makefile
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 2008 Silicon Graphics, Inc. All Rights Reserved.
#
# Makefile for the sn uv subplatform
#
obj-y += kernel/
arch/ia64/uv/kernel/Makefile
+13
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@@ -0,0 +1,13 @@
# arch/ia64/uv/kernel/Makefile
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 2008 Silicon Graphics, Inc. All Rights Reserved.
#
EXTRA_CFLAGS += -Iarch/ia64/sn/include
obj-y += setup.o
obj-$(CONFIG_IA64_GENERIC) += machvec.o
arch/ia64/uv/kernel/machvec.c
+11
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@@ -0,0 +1,11 @@
/*
* 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.
*/
#define MACHVEC_PLATFORM_NAME uv
#define MACHVEC_PLATFORM_HEADER <asm/machvec_uv.h>
#include <asm/machvec_init.h>
arch/ia64/uv/kernel/setup.c
+98
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@@ -0,0 +1,98 @@
/*
* 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.
*
* SGI UV Core Functions
*
* Copyright (C) 2008 Silicon Graphics, Inc. All rights reserved.
*/
#include <linux/module.h>
#include <linux/percpu.h>
#include <asm/sn/simulator.h>
#include <asm/uv/uv_mmrs.h>
#include <asm/uv/uv_hub.h>
DEFINE_PER_CPU(struct uv_hub_info_s, __uv_hub_info);
EXPORT_PER_CPU_SYMBOL_GPL(__uv_hub_info);
struct redir_addr {
unsigned long redirect;
unsigned long alias;
};
#define DEST_SHIFT UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_0_MMR_DEST_BASE_SHFT
static __initdata struct redir_addr redir_addrs[] = {
{UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_0_MMR, UVH_SI_ALIAS0_OVERLAY_CONFIG},
{UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_1_MMR, UVH_SI_ALIAS1_OVERLAY_CONFIG},
{UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_2_MMR, UVH_SI_ALIAS2_OVERLAY_CONFIG},
};
static __init void get_lowmem_redirect(unsigned long *base, unsigned long *size)
{
union uvh_si_alias0_overlay_config_u alias;
union uvh_rh_gam_alias210_redirect_config_2_mmr_u redirect;
int i;
for (i = 0; i < ARRAY_SIZE(redir_addrs); i++) {
alias.v = uv_read_local_mmr(redir_addrs[i].alias);
if (alias.s.base == 0) {
*size = (1UL << alias.s.m_alias);
redirect.v = uv_read_local_mmr(redir_addrs[i].redirect);
*base = (unsigned long)redirect.s.dest_base << DEST_SHIFT;
return;
}
}
BUG();
}
void __init uv_setup(char **cmdline_p)
{
union uvh_si_addr_map_config_u m_n_config;
union uvh_node_id_u node_id;
unsigned long gnode_upper;
int nid, cpu, m_val, n_val;
unsigned long mmr_base, lowmem_redir_base, lowmem_redir_size;
if (IS_MEDUSA()) {
lowmem_redir_base = 0;
lowmem_redir_size = 0;
node_id.v = 0;
m_n_config.s.m_skt = 37;
m_n_config.s.n_skt = 0;
mmr_base = 0;
} else {
get_lowmem_redirect(&lowmem_redir_base, &lowmem_redir_size);
node_id.v = uv_read_local_mmr(UVH_NODE_ID);
m_n_config.v = uv_read_local_mmr(UVH_SI_ADDR_MAP_CONFIG);
mmr_base =
uv_read_local_mmr(UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR) &
~UV_MMR_ENABLE;
}
m_val = m_n_config.s.m_skt;
n_val = m_n_config.s.n_skt;
printk(KERN_DEBUG "UV: global MMR base 0x%lx\n", mmr_base);
gnode_upper = (((unsigned long)node_id.s.node_id) &
~((1 << n_val) - 1)) << m_val;
for_each_present_cpu(cpu) {
nid = cpu_to_node(cpu);
uv_cpu_hub_info(cpu)->lowmem_remap_base = lowmem_redir_base;
uv_cpu_hub_info(cpu)->lowmem_remap_top =
lowmem_redir_base + lowmem_redir_size;
uv_cpu_hub_info(cpu)->m_val = m_val;
uv_cpu_hub_info(cpu)->n_val = m_val;
uv_cpu_hub_info(cpu)->pnode_mask = (1 << n_val) -1;
uv_cpu_hub_info(cpu)->gpa_mask = (1 << (m_val + n_val)) - 1;
uv_cpu_hub_info(cpu)->gnode_upper = gnode_upper;
uv_cpu_hub_info(cpu)->global_mmr_base = mmr_base;
uv_cpu_hub_info(cpu)->coherency_domain_number = 0;/* ZZZ */
printk(KERN_DEBUG "UV cpu %d, nid %d\n", cpu, nid);
}
}