From 83f5d894ca5280bfcd904dfeb1347c2da2b19aac Mon Sep 17 00:00:00 2001 From: Jack Steiner Date: Tue, 1 Jul 2008 14:45:38 -0500 Subject: [PATCH] x86: map UV chipset space - UV support Create page table entries to map the SGI UV chipset GRU. local MMR & global MMR ranges. Signed-off-by: Jack Steiner Cc: linux-mm@kvack.org Signed-off-by: Ingo Molnar --- arch/x86/kernel/genx2apic_uv_x.c | 75 +++++++++++++++++++++++++++++++- include/asm-x86/uv/uv_hub.h | 2 + include/asm-x86/uv/uv_mmrs.h | 46 ++++++++++++++++++++ 3 files changed, 122 insertions(+), 1 deletion(-) diff --git a/arch/x86/kernel/genx2apic_uv_x.c b/arch/x86/kernel/genx2apic_uv_x.c index 45e84acca8a9..711f11c30b06 100644 --- a/arch/x86/kernel/genx2apic_uv_x.c +++ b/arch/x86/kernel/genx2apic_uv_x.c @@ -8,6 +8,7 @@ * Copyright (C) 2007-2008 Silicon Graphics, Inc. All rights reserved. */ +#include #include #include #include @@ -20,6 +21,7 @@ #include #include #include +#include #include #include @@ -208,14 +210,79 @@ static __init void get_lowmem_redirect(unsigned long *base, unsigned long *size) BUG(); } +static __init void map_low_mmrs(void) +{ + init_extra_mapping_uc(UV_GLOBAL_MMR32_BASE, UV_GLOBAL_MMR32_SIZE); + init_extra_mapping_uc(UV_LOCAL_MMR_BASE, UV_LOCAL_MMR_SIZE); +} + +enum map_type {map_wb, map_uc}; + +static void map_high(char *id, unsigned long base, int shift, enum map_type map_type) +{ + unsigned long bytes, paddr; + + paddr = base << shift; + bytes = (1UL << shift); + printk(KERN_INFO "UV: Map %s_HI 0x%lx - 0x%lx\n", id, paddr, + paddr + bytes); + if (map_type == map_uc) + init_extra_mapping_uc(paddr, bytes); + else + init_extra_mapping_wb(paddr, bytes); + +} +static __init void map_gru_high(int max_pnode) +{ + union uvh_rh_gam_gru_overlay_config_mmr_u gru; + int shift = UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR_BASE_SHFT; + + gru.v = uv_read_local_mmr(UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR); + if (gru.s.enable) + map_high("GRU", gru.s.base, shift, map_wb); +} + +static __init void map_config_high(int max_pnode) +{ + union uvh_rh_gam_cfg_overlay_config_mmr_u cfg; + int shift = UVH_RH_GAM_CFG_OVERLAY_CONFIG_MMR_BASE_SHFT; + + cfg.v = uv_read_local_mmr(UVH_RH_GAM_CFG_OVERLAY_CONFIG_MMR); + if (cfg.s.enable) + map_high("CONFIG", cfg.s.base, shift, map_uc); +} + +static __init void map_mmr_high(int max_pnode) +{ + union uvh_rh_gam_mmr_overlay_config_mmr_u mmr; + int shift = UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR_BASE_SHFT; + + mmr.v = uv_read_local_mmr(UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR); + if (mmr.s.enable) + map_high("MMR", mmr.s.base, shift, map_uc); +} + +static __init void map_mmioh_high(int max_pnode) +{ + union uvh_rh_gam_mmioh_overlay_config_mmr_u mmioh; + int shift = UVH_RH_GAM_MMIOH_OVERLAY_CONFIG_MMR_BASE_SHFT; + + mmioh.v = uv_read_local_mmr(UVH_RH_GAM_MMIOH_OVERLAY_CONFIG_MMR); + if (mmioh.s.enable) + map_high("MMIOH", mmioh.s.base, shift, map_uc); +} + static __init void uv_system_init(void) { union uvh_si_addr_map_config_u m_n_config; union uvh_node_id_u node_id; unsigned long gnode_upper, lowmem_redir_base, lowmem_redir_size; int bytes, nid, cpu, lcpu, pnode, blade, i, j, m_val, n_val; + int max_pnode = 0; unsigned long mmr_base, present; + map_low_mmrs(); + m_n_config.v = uv_read_local_mmr(UVH_SI_ADDR_MAP_CONFIG); m_val = m_n_config.s.m_skt; n_val = m_n_config.s.n_skt; @@ -281,12 +348,18 @@ static __init void uv_system_init(void) uv_cpu_hub_info(cpu)->coherency_domain_number = 0;/* ZZZ */ uv_node_to_blade[nid] = blade; uv_cpu_to_blade[cpu] = blade; + max_pnode = max(pnode, max_pnode); - printk(KERN_DEBUG "UV cpu %d, apicid 0x%x, pnode %d, nid %d, " + printk(KERN_DEBUG "UV: cpu %d, apicid 0x%x, pnode %d, nid %d, " "lcpu %d, blade %d\n", cpu, per_cpu(x86_cpu_to_apicid, cpu), pnode, nid, lcpu, blade); } + + map_gru_high(max_pnode); + map_mmr_high(max_pnode); + map_config_high(max_pnode); + map_mmioh_high(max_pnode); } /* diff --git a/include/asm-x86/uv/uv_hub.h b/include/asm-x86/uv/uv_hub.h index 65004881de5f..a4ef26e5850b 100644 --- a/include/asm-x86/uv/uv_hub.h +++ b/include/asm-x86/uv/uv_hub.h @@ -149,6 +149,8 @@ DECLARE_PER_CPU(struct uv_hub_info_s, __uv_hub_info); #define UV_LOCAL_MMR_BASE 0xf4000000UL #define UV_GLOBAL_MMR32_BASE 0xf8000000UL #define UV_GLOBAL_MMR64_BASE (uv_hub_info->global_mmr_base) +#define UV_LOCAL_MMR_SIZE (64UL * 1024 * 1024) +#define UV_GLOBAL_MMR32_SIZE (64UL * 1024 * 1024) #define UV_GLOBAL_MMR32_PNODE_SHIFT 15 #define UV_GLOBAL_MMR64_PNODE_SHIFT 26 diff --git a/include/asm-x86/uv/uv_mmrs.h b/include/asm-x86/uv/uv_mmrs.h index ac9846076521..37113f554a97 100644 --- a/include/asm-x86/uv/uv_mmrs.h +++ b/include/asm-x86/uv/uv_mmrs.h @@ -712,6 +712,26 @@ union uvh_rh_gam_alias210_redirect_config_2_mmr_u { } s; }; +/* ========================================================================= */ +/* UVH_RH_GAM_CFG_OVERLAY_CONFIG_MMR */ +/* ========================================================================= */ +#define UVH_RH_GAM_CFG_OVERLAY_CONFIG_MMR 0x1600020UL + +#define UVH_RH_GAM_CFG_OVERLAY_CONFIG_MMR_BASE_SHFT 26 +#define UVH_RH_GAM_CFG_OVERLAY_CONFIG_MMR_BASE_MASK 0x00003ffffc000000UL +#define UVH_RH_GAM_CFG_OVERLAY_CONFIG_MMR_ENABLE_SHFT 63 +#define UVH_RH_GAM_CFG_OVERLAY_CONFIG_MMR_ENABLE_MASK 0x8000000000000000UL + +union uvh_rh_gam_cfg_overlay_config_mmr_u { + unsigned long v; + struct uvh_rh_gam_cfg_overlay_config_mmr_s { + unsigned long rsvd_0_25: 26; /* */ + unsigned long base : 20; /* RW */ + unsigned long rsvd_46_62: 17; /* */ + unsigned long enable : 1; /* RW */ + } s; +}; + /* ========================================================================= */ /* UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR */ /* ========================================================================= */ @@ -739,6 +759,32 @@ union uvh_rh_gam_gru_overlay_config_mmr_u { } s; }; +/* ========================================================================= */ +/* UVH_RH_GAM_MMIOH_OVERLAY_CONFIG_MMR */ +/* ========================================================================= */ +#define UVH_RH_GAM_MMIOH_OVERLAY_CONFIG_MMR 0x1600030UL + +#define UVH_RH_GAM_MMIOH_OVERLAY_CONFIG_MMR_BASE_SHFT 30 +#define UVH_RH_GAM_MMIOH_OVERLAY_CONFIG_MMR_BASE_MASK 0x00003fffc0000000UL +#define UVH_RH_GAM_MMIOH_OVERLAY_CONFIG_MMR_M_IO_SHFT 46 +#define UVH_RH_GAM_MMIOH_OVERLAY_CONFIG_MMR_M_IO_MASK 0x000fc00000000000UL +#define UVH_RH_GAM_MMIOH_OVERLAY_CONFIG_MMR_N_IO_SHFT 52 +#define UVH_RH_GAM_MMIOH_OVERLAY_CONFIG_MMR_N_IO_MASK 0x00f0000000000000UL +#define UVH_RH_GAM_MMIOH_OVERLAY_CONFIG_MMR_ENABLE_SHFT 63 +#define UVH_RH_GAM_MMIOH_OVERLAY_CONFIG_MMR_ENABLE_MASK 0x8000000000000000UL + +union uvh_rh_gam_mmioh_overlay_config_mmr_u { + unsigned long v; + struct uvh_rh_gam_mmioh_overlay_config_mmr_s { + unsigned long rsvd_0_29: 30; /* */ + unsigned long base : 16; /* RW */ + unsigned long m_io : 6; /* RW */ + unsigned long n_io : 4; /* RW */ + unsigned long rsvd_56_62: 7; /* */ + unsigned long enable : 1; /* RW */ + } s; +}; + /* ========================================================================= */ /* UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR */ /* ========================================================================= */ -- 2.30.2