1 files changed, 28 insertions, 8 deletions

diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index f744f54cb248..194539aea175 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -5,7 +5,7 @@
  *
  * SGI UV APIC functions (note: not an Intel compatible APIC)
  *
- * Copyright (C) 2007-2009 Silicon Graphics, Inc. All rights reserved.
+ * Copyright (C) 2007-2010 Silicon Graphics, Inc. All rights reserved.
  */
 #include <linux/cpumask.h>
 #include <linux/hardirq.h>
@@ -41,6 +41,7 @@ DEFINE_PER_CPU(int, x2apic_extra_bits);
 
 static enum uv_system_type uv_system_type;
 static u64 gru_start_paddr, gru_end_paddr;
+static union uvh_apicid uvh_apicid;
 int uv_min_hub_revision_id;
 EXPORT_SYMBOL_GPL(uv_min_hub_revision_id);
 static DEFINE_SPINLOCK(uv_nmi_lock);
@@ -70,12 +71,27 @@ static int early_get_nodeid(void)
         return node_id.s.node_id;
 }
 
+static void __init early_get_apic_pnode_shift(void)
+{
+        unsigned long *mmr;
+
+        mmr = early_ioremap(UV_LOCAL_MMR_BASE | UVH_APICID, sizeof(*mmr));
+        uvh_apicid.v = *mmr;
+        early_iounmap(mmr, sizeof(*mmr));
+        if (!uvh_apicid.v)
+                /*
+                 * Old bios, use default value
+                 */
+                uvh_apicid.s.pnode_shift = UV_APIC_PNODE_SHIFT;
+}
+
 static int __init uv_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
 {
         int nodeid;
 
         if (!strcmp(oem_id, "SGI")) {
                 nodeid = early_get_nodeid();
+                early_get_apic_pnode_shift();
                 x86_platform.is_untracked_pat_range =  uv_is_untracked_pat_range;
                 x86_platform.nmi_init = uv_nmi_init;
                 if (!strcmp(oem_table_id, "UVL"))
@@ -84,7 +100,7 @@ static int __init uv_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
                         uv_system_type = UV_X2APIC;
                 else if (!strcmp(oem_table_id, "UVH")) {
                         __get_cpu_var(x2apic_extra_bits) =
-                                nodeid << (UV_APIC_PNODE_SHIFT - 1);
+                                nodeid << (uvh_apicid.s.pnode_shift - 1);
                         uv_system_type = UV_NON_UNIQUE_APIC;
                         return 1;
                 }
@@ -363,14 +379,14 @@ struct redir_addr {
 #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},
+        {UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_0_MMR, UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_0_MMR},
+        {UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_1_MMR, UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_1_MMR},
+        {UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_2_MMR, UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_2_MMR},
 };
 
 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_overlay_config_2_mmr_u alias;
         union uvh_rh_gam_alias210_redirect_config_2_mmr_u redirect;
         int i;
 
@@ -644,7 +660,7 @@ void uv_nmi_init(void)
 
 void __init uv_system_init(void)
 {
-        union uvh_si_addr_map_config_u m_n_config;
+        union uvh_rh_gam_config_mmr_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;
@@ -654,7 +670,7 @@ void __init uv_system_init(void)
 
         map_low_mmrs();
 
-        m_n_config.v = uv_read_local_mmr(UVH_SI_ADDR_MAP_CONFIG);
+        m_n_config.v = uv_read_local_mmr(UVH_RH_GAM_CONFIG_MMR );
         m_val = m_n_config.s.m_skt;
         n_val = m_n_config.s.n_skt;
         mmr_base =
@@ -716,6 +732,10 @@ void __init uv_system_init(void)
                 int apicid = per_cpu(x86_cpu_to_apicid, cpu);
 
                 nid = cpu_to_node(cpu);
+                /*
+                 * apic_pnode_shift must be set before calling uv_apicid_to_pnode();
+                 */
+                uv_cpu_hub_info(cpu)->apic_pnode_shift = uvh_apicid.s.pnode_shift;
                 pnode = uv_apicid_to_pnode(apicid);
                 blade = boot_pnode_to_blade(pnode);
                 lcpu = uv_blade_info[blade].nr_possible_cpus;