diff options
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/apic/x2apic_uv_x.c | 30 |
1 files changed, 14 insertions, 16 deletions
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c index c1c52c3..0c3675f 100644 --- a/arch/x86/kernel/apic/x2apic_uv_x.c +++ b/arch/x86/kernel/apic/x2apic_uv_x.c @@ -48,6 +48,16 @@ unsigned int uv_apicid_hibits; EXPORT_SYMBOL_GPL(uv_apicid_hibits); static DEFINE_SPINLOCK(uv_nmi_lock); +static unsigned long __init uv_early_read_mmr(unsigned long addr) +{ + unsigned long val, *mmr; + + mmr = early_ioremap(UV_LOCAL_MMR_BASE | addr, sizeof(*mmr)); + val = *mmr; + early_iounmap(mmr, sizeof(*mmr)); + return val; +} + static inline bool is_GRU_range(u64 start, u64 end) { return start >= gru_start_paddr && end <= gru_end_paddr; @@ -58,16 +68,12 @@ static bool uv_is_untracked_pat_range(u64 start, u64 end) return is_ISA_range(start, end) || is_GRU_range(start, end); } -static int early_get_nodeid(void) +static int __init early_get_nodeid(void) { union uvh_node_id_u node_id; - unsigned long *mmr; - - mmr = early_ioremap(UV_LOCAL_MMR_BASE | UVH_NODE_ID, sizeof(*mmr)); - node_id.v = *mmr; - early_iounmap(mmr, sizeof(*mmr)); /* Currently, all blades have same revision number */ + node_id.v = uv_early_read_mmr(UVH_NODE_ID); uv_min_hub_revision_id = node_id.s.revision; return node_id.s.node_id; @@ -75,11 +81,7 @@ static int early_get_nodeid(void) 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)); + uvh_apicid.v = uv_early_read_mmr(UVH_APICID); if (!uvh_apicid.v) /* * Old bios, use default value @@ -95,12 +97,8 @@ static void __init early_get_apic_pnode_shift(void) static void __init uv_set_apicid_hibit(void) { union uvh_lb_target_physical_apic_id_mask_u apicid_mask; - unsigned long *mmr; - mmr = early_ioremap(UV_LOCAL_MMR_BASE | - UVH_LB_TARGET_PHYSICAL_APIC_ID_MASK, sizeof(*mmr)); - apicid_mask.v = *mmr; - early_iounmap(mmr, sizeof(*mmr)); + apicid_mask.v = uv_early_read_mmr(UVH_LB_TARGET_PHYSICAL_APIC_ID_MASK); uv_apicid_hibits = apicid_mask.s.bit_enables & UV_APICID_HIBIT_MASK; } |