This patch adds the basic IA64 machvec infrastructure to support the SGI "UV" platform. Signed-off-by: Jack Steiner <steiner@xxxxxxx> --- arch/ia64/Kconfig | 13 +++++ arch/ia64/Makefile | 2 arch/ia64/kernel/acpi.c | 7 ++- arch/ia64/uv/Makefile | 12 +++++ arch/ia64/uv/kernel/Makefile | 13 +++++ arch/ia64/uv/kernel/machvec.c | 11 ++++ arch/ia64/uv/kernel/setup.c | 98 ++++++++++++++++++++++++++++++++++++++++++ include/asm-ia64/machvec.h | 2 include/asm-ia64/machvec_uv.h | 26 +++++++++++ 9 files changed, 182 insertions(+), 2 deletions(-) Index: linux/arch/ia64/Kconfig =================================================================== --- linux.orig/arch/ia64/Kconfig 2008-05-06 13:14:35.381858879 -0500 +++ linux/arch/ia64/Kconfig 2008-05-06 14:07:39.231016055 -0500 @@ -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 Index: linux/arch/ia64/kernel/acpi.c =================================================================== --- linux.orig/arch/ia64/kernel/acpi.c 2008-05-06 13:14:35.401861327 -0500 +++ linux/arch/ia64/kernel/acpi.c 2008-05-06 14:07:39.263019943 -0500 @@ -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 Index: linux/arch/ia64/uv/Makefile =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ linux/arch/ia64/uv/Makefile 2008-05-06 14:07:39.287022859 -0500 @@ -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/ Index: linux/arch/ia64/uv/kernel/Makefile =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ linux/arch/ia64/uv/kernel/Makefile 2008-05-06 14:07:39.311025775 -0500 @@ -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 Index: linux/arch/ia64/uv/kernel/machvec.c =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ linux/arch/ia64/uv/kernel/machvec.c 2008-05-06 14:07:39.339029176 -0500 @@ -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> Index: linux/arch/ia64/uv/kernel/setup.c =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ linux/arch/ia64/uv/kernel/setup.c 2008-05-06 14:07:39.363032092 -0500 @@ -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); + } +} + Index: linux/include/asm-ia64/machvec.h =================================================================== --- linux.orig/include/asm-ia64/machvec.h 2008-05-06 13:14:40.534489485 -0500 +++ linux/include/asm-ia64/machvec.h 2008-05-06 14:07:39.435040840 -0500 @@ -126,6 +126,8 @@ extern void machvec_tlb_migrate_finish ( # include <asm/machvec_hpzx1_swiotlb.h> # elif defined (CONFIG_IA64_SGI_SN2) # include <asm/machvec_sn2.h> +# elif defined (CONFIG_IA64_SGI_UV) +# include <asm/machvec_uv.h> # elif defined (CONFIG_IA64_GENERIC) # ifdef MACHVEC_PLATFORM_HEADER Index: linux/include/asm-ia64/machvec_uv.h =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ linux/include/asm-ia64/machvec_uv.h 2008-05-06 14:07:39.459043755 -0500 @@ -0,0 +1,26 @@ +/* + * 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. + */ + +#ifndef _ASM_IA64_MACHVEC_UV_H +#define _ASM_IA64_MACHVEC_UV_H + +extern ia64_mv_setup_t uv_setup; + +/* + * This stuff has dual use! + * + * For a generic kernel, the macros are used to initialize the + * platform's machvec structure. When compiling a non-generic kernel, + * the macros are used directly. + */ +#define platform_name "uv" +#define platform_setup uv_setup + +#endif /* _ASM_IA64_MACHVEC_UV_H */ Index: linux/arch/ia64/Makefile =================================================================== --- linux.orig/arch/ia64/Makefile 2008-05-06 13:14:35.385859368 -0500 +++ linux/arch/ia64/Makefile 2008-05-06 14:07:39.483046671 -0500 @@ -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 -- To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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