x86, x2apic: Move the common bits to x2apic.h

To eliminate code duplication.

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: steiner@sgi.com
Cc: yinghai@kernel.org
Link: http://lkml.kernel.org/r/20110519234637.591426753@sbsiddha-MOBL3.sc.intel.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>

3 files changed, 69 insertions, 124 deletions

diff --git a/arch/x86/include/asm/x2apic.h b/arch/x86/include/asm/x2apic.h
new file mode 100644
index 00000000000..6bf5b8e478c
--- /dev/null
+++ b/arch/x86/include/asm/x2apic.h
@@ -0,0 +1,62 @@
+/*
+ * Common bits for X2APIC cluster/physical modes.
+ */
+
+#ifndef _ASM_X86_X2APIC_H
+#define _ASM_X86_X2APIC_H
+
+#include <asm/apic.h>
+#include <asm/ipi.h>
+#include <linux/cpumask.h>
+
+/*
+ * Need to use more than cpu 0, because we need more vectors
+ * when MSI-X are used.
+ */
+static const struct cpumask *x2apic_target_cpus(void)
+{
+        return cpu_online_mask;
+}
+
+static int x2apic_apic_id_registered(void)
+{
+        return 1;
+}
+
+/*
+ * For now each logical cpu is in its own vector allocation domain.
+ */
+static void x2apic_vector_allocation_domain(int cpu, struct cpumask *retmask)
+{
+        cpumask_clear(retmask);
+        cpumask_set_cpu(cpu, retmask);
+}
+
+static void
+__x2apic_send_IPI_dest(unsigned int apicid, int vector, unsigned int dest)
+{
+        unsigned long cfg = __prepare_ICR(0, vector, dest);
+        native_x2apic_icr_write(cfg, apicid);
+}
+
+static unsigned int x2apic_get_apic_id(unsigned long id)
+{
+        return id;
+}
+
+static unsigned long x2apic_set_apic_id(unsigned int id)
+{
+        return id;
+}
+
+static int x2apic_phys_pkg_id(int initial_apicid, int index_msb)
+{
+        return initial_apicid >> index_msb;
+}
+
+static void x2apic_send_IPI_self(int vector)
+{
+        apic_write(APIC_SELF_IPI, vector);
+}
+
+#endif /* _ASM_X86_X2APIC_H */
diff --git a/arch/x86/kernel/apic/x2apic_cluster.c b/arch/x86/kernel/apic/x2apic_cluster.c
index 4dfe9363ff4..f7875d9a18c 100644
--- a/arch/x86/kernel/apic/x2apic_cluster.c
+++ b/arch/x86/kernel/apic/x2apic_cluster.c
@@ -8,8 +8,7 @@
 #include <linux/cpu.h>
 
 #include <asm/smp.h>
-#include <asm/apic.h>
-#include <asm/ipi.h>
+#include <asm/x2apic.h>
 
 static DEFINE_PER_CPU(u32, x86_cpu_to_logical_apicid);
 static DEFINE_PER_CPU(cpumask_var_t, cpus_in_cluster);
@@ -20,37 +19,6 @@ static int x2apic_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
         return x2apic_enabled();
 }
 
-/*
- * need to use more than cpu 0, because we need more vectors when
- * MSI-X are used.
- */
-static const struct cpumask *x2apic_target_cpus(void)
-{
-        return cpu_online_mask;
-}
-
-/*
- * for now each logical cpu is in its own vector allocation domain.
- */
-static void x2apic_vector_allocation_domain(int cpu, struct cpumask *retmask)
-{
-        cpumask_clear(retmask);
-        cpumask_set_cpu(cpu, retmask);
-}
-
-static void
- __x2apic_send_IPI_dest(unsigned int apicid, int vector, unsigned int dest)
-{
-        unsigned long cfg;
-
-        cfg = __prepare_ICR(0, vector, dest);
-
-        /*
-         * send the IPI.
-         */
-        native_x2apic_icr_write(cfg, apicid);
-}
-
 static inline u32 x2apic_cluster(int cpu)
 {
         return per_cpu(x86_cpu_to_logical_apicid, cpu) >> 16;
@@ -128,11 +96,6 @@ static void x2apic_send_IPI_all(int vector)
         __x2apic_send_IPI_mask(cpu_online_mask, vector, APIC_DEST_ALLINC);
 }
 
-static int x2apic_apic_id_registered(void)
-{
-        return 1;
-}
-
 static unsigned int x2apic_cpu_mask_to_apicid(const struct cpumask *cpumask)
 {
         /*
@@ -165,32 +128,6 @@ x2apic_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
         return per_cpu(x86_cpu_to_logical_apicid, cpu);
 }
 
-static unsigned int x2apic_cluster_phys_get_apic_id(unsigned long x)
-{
-        unsigned int id;
-
-        id = x;
-        return id;
-}
-
-static unsigned long set_apic_id(unsigned int id)
-{
-        unsigned long x;
-
-        x = id;
-        return x;
-}
-
-static int x2apic_cluster_phys_pkg_id(int initial_apicid, int index_msb)
-{
-        return initial_apicid >> index_msb;
-}
-
-static void x2apic_send_IPI_self(int vector)
-{
-        apic_write(APIC_SELF_IPI, vector);
-}
-
 static void init_x2apic_ldr(void)
 {
         unsigned int this_cpu = smp_processor_id();
@@ -298,11 +235,11 @@ struct apic apic_x2apic_cluster = {
         .setup_portio_remap             = NULL,
         .check_phys_apicid_present      = default_check_phys_apicid_present,
         .enable_apic_mode               = NULL,
-        .phys_pkg_id                    = x2apic_cluster_phys_pkg_id,
+        .phys_pkg_id                    = x2apic_phys_pkg_id,
         .mps_oem_check                  = NULL,
 
-        .get_apic_id                    = x2apic_cluster_phys_get_apic_id,
-        .set_apic_id                    = set_apic_id,
+        .get_apic_id                    = x2apic_get_apic_id,
+        .set_apic_id                    = x2apic_set_apic_id,
         .apic_id_mask                   = 0xFFFFFFFFu,
 
         .cpu_mask_to_apicid             = x2apic_cpu_mask_to_apicid,
diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c
index 6ef49e338a7..78c8f33a09f 100644
--- a/arch/x86/kernel/apic/x2apic_phys.c
+++ b/arch/x86/kernel/apic/x2apic_phys.c
@@ -7,8 +7,7 @@
 #include <linux/dmar.h>
 
 #include <asm/smp.h>
-#include <asm/apic.h>
-#include <asm/ipi.h>
+#include <asm/x2apic.h>
 
 int x2apic_phys;
 
@@ -27,34 +26,6 @@ static int x2apic_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
                 return 0;
 }
 
-/*
- * need to use more than cpu 0, because we need more vectors when
- * MSI-X are used.
- */
-static const struct cpumask *x2apic_target_cpus(void)
-{
-        return cpu_online_mask;
-}
-
-static void x2apic_vector_allocation_domain(int cpu, struct cpumask *retmask)
-{
-        cpumask_clear(retmask);
-        cpumask_set_cpu(cpu, retmask);
-}
-
-static void __x2apic_send_IPI_dest(unsigned int apicid, int vector,
-                                   unsigned int dest)
-{
-        unsigned long cfg;
-
-        cfg = __prepare_ICR(0, vector, dest);
-
-        /*
-         * send the IPI.
-         */
-        native_x2apic_icr_write(cfg, apicid);
-}
-
 static void
 __x2apic_send_IPI_mask(const struct cpumask *mask, int vector, int apic_dest)
 {
@@ -97,11 +68,6 @@ static void x2apic_send_IPI_all(int vector)
         __x2apic_send_IPI_mask(cpu_online_mask, vector, APIC_DEST_ALLINC);
 }
 
-static int x2apic_apic_id_registered(void)
-{
-        return 1;
-}
-
 static unsigned int x2apic_cpu_mask_to_apicid(const struct cpumask *cpumask)
 {
         /*
@@ -134,26 +100,6 @@ x2apic_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
         return per_cpu(x86_cpu_to_apicid, cpu);
 }
 
-static unsigned int x2apic_phys_get_apic_id(unsigned long x)
-{
-        return x;
-}
-
-static unsigned long set_apic_id(unsigned int id)
-{
-        return id;
-}
-
-static int x2apic_phys_pkg_id(int initial_apicid, int index_msb)
-{
-        return initial_apicid >> index_msb;
-}
-
-static void x2apic_send_IPI_self(int vector)
-{
-        apic_write(APIC_SELF_IPI, vector);
-}
-
 static void init_x2apic_ldr(void)
 {
 }
@@ -196,8 +142,8 @@ struct apic apic_x2apic_phys = {
         .phys_pkg_id                    = x2apic_phys_pkg_id,
         .mps_oem_check                  = NULL,
 
-        .get_apic_id                    = x2apic_phys_get_apic_id,
-        .set_apic_id                    = set_apic_id,
+        .get_apic_id                    = x2apic_get_apic_id,
+        .set_apic_id                    = x2apic_set_apic_id,
         .apic_id_mask                   = 0xFFFFFFFFu,
 
         .cpu_mask_to_apicid             = x2apic_cpu_mask_to_apicid,