Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[pandora-kernel.git] / arch / x86 / kernel / apic / x2apic_uv_x.c

diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index f744f54..194539a 100644 (file)
--- 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;