x86: Kill apic->cpu_to_logical_apicid()

After the previous patch, apic->cpu_to_logical_apicid() is no
longer used.  Kill it.

For apic types with custom cpu_to_logical_apicid() which is also
used for other purposes, remove the function and modify its
users to do the mapping directly.

#ifdef's on CONFIG_SMP in es7000_32 and summit_32 are ignored
during conversion as they are not used for UP kernels.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: eric.dumazet@gmail.com
Cc: yinghai@kernel.org
Cc: brgerst@gmail.com
Cc: gorcunov@gmail.com
Cc: penberg@kernel.org
Cc: shaohui.zheng@intel.com
Cc: rientjes@google.com
LKML-Reference: <1295789862-25482-7-git-send-email-tj@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index eb139ec..d1aa0c3 100644 (file)
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -307,7 +307,6 @@ struct apic {
        void (*setup_apic_routing)(void);
        int (*multi_timer_check)(int apic, int irq);
        int (*apicid_to_node)(int logical_apicid);
-       int (*cpu_to_logical_apicid)(int cpu);
        int (*cpu_present_to_apicid)(int mps_cpu);
        void (*apicid_to_cpu_present)(int phys_apicid, physid_mask_t *retmap);
        void (*setup_portio_remap)(void);
@@ -557,12 +556,6 @@ static inline void default_ioapic_phys_id_map(physid_mask_t *phys_map, physid_ma
        *retmap = *phys_map;
 }
 
-/* Mapping from cpu number to logical apicid */
-static inline int default_cpu_to_logical_apicid(int cpu)
-{
-       return 1 << cpu;
-}
-
 static inline int __default_cpu_present_to_apicid(int mps_cpu)
 {
        if (mps_cpu < nr_cpu_ids && cpu_present(mps_cpu))

diff --git a/arch/x86/kernel/apic/apic_flat_64.c b/arch/x86/kernel/apic/apic_flat_64.c
index 09d3b17..5a9d11a 100644 (file)
--- a/arch/x86/kernel/apic/apic_flat_64.c
+++ b/arch/x86/kernel/apic/apic_flat_64.c
@@ -186,7 +186,6 @@ struct apic apic_flat =  {
        .setup_apic_routing             = NULL,
        .multi_timer_check              = NULL,
        .apicid_to_node                 = NULL,
-       .cpu_to_logical_apicid          = NULL,
        .cpu_present_to_apicid          = default_cpu_present_to_apicid,
        .apicid_to_cpu_present          = NULL,
        .setup_portio_remap             = NULL,
@@ -338,7 +337,6 @@ struct apic apic_physflat =  {
        .setup_apic_routing             = NULL,
        .multi_timer_check              = NULL,
        .apicid_to_node                 = NULL,
-       .cpu_to_logical_apicid          = NULL,
        .cpu_present_to_apicid          = default_cpu_present_to_apicid,
        .apicid_to_cpu_present          = NULL,
        .setup_portio_remap             = NULL,

diff --git a/arch/x86/kernel/apic/apic_noop.c b/arch/x86/kernel/apic/apic_noop.c
index e31b9ff..f3d19b2 100644 (file)
--- a/arch/x86/kernel/apic/apic_noop.c
+++ b/arch/x86/kernel/apic/apic_noop.c
@@ -54,11 +54,6 @@ static u64 noop_apic_icr_read(void)
        return 0;
 }
 
-static int noop_cpu_to_logical_apicid(int cpu)
-{
-       return 0;
-}
-
 static int noop_phys_pkg_id(int cpuid_apic, int index_msb)
 {
        return 0;
@@ -155,7 +150,6 @@ struct apic apic_noop = {
        .multi_timer_check              = NULL,
        .apicid_to_node                 = noop_apicid_to_node,
 
-       .cpu_to_logical_apicid          = noop_cpu_to_logical_apicid,
        .cpu_present_to_apicid          = default_cpu_present_to_apicid,
        .apicid_to_cpu_present          = physid_set_mask_of_physid,
 

diff --git a/arch/x86/kernel/apic/bigsmp_32.c b/arch/x86/kernel/apic/bigsmp_32.c
index cb804c5..4c62592 100644 (file)
--- a/arch/x86/kernel/apic/bigsmp_32.c
+++ b/arch/x86/kernel/apic/bigsmp_32.c
@@ -93,14 +93,6 @@ static int bigsmp_cpu_present_to_apicid(int mps_cpu)
        return BAD_APICID;
 }
 
-/* Mapping from cpu number to logical apicid */
-static inline int bigsmp_cpu_to_logical_apicid(int cpu)
-{
-       if (cpu >= nr_cpu_ids)
-               return BAD_APICID;
-       return cpu_physical_id(cpu);
-}
-
 static void bigsmp_ioapic_phys_id_map(physid_mask_t *phys_map, physid_mask_t *retmap)
 {
        /* For clustered we don't have a good way to do this yet - hack */
@@ -115,7 +107,11 @@ static int bigsmp_check_phys_apicid_present(int phys_apicid)
 /* As we are using single CPU as destination, pick only one CPU here */
 static unsigned int bigsmp_cpu_mask_to_apicid(const struct cpumask *cpumask)
 {
-       return bigsmp_cpu_to_logical_apicid(cpumask_first(cpumask));
+       int cpu = cpumask_first(cpumask);
+
+       if (cpu < nr_cpu_ids)
+               return cpu_physical_id(cpu);
+       return BAD_APICID;
 }
 
 static unsigned int bigsmp_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
@@ -129,9 +125,9 @@ static unsigned int bigsmp_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
         */
        for_each_cpu_and(cpu, cpumask, andmask) {
                if (cpumask_test_cpu(cpu, cpu_online_mask))
-                       break;
+                       return cpu_physical_id(cpu);
        }
-       return bigsmp_cpu_to_logical_apicid(cpu);
+       return BAD_APICID;
 }
 
 static int bigsmp_phys_pkg_id(int cpuid_apic, int index_msb)
@@ -220,7 +216,6 @@ struct apic apic_bigsmp = {
        .setup_apic_routing             = bigsmp_setup_apic_routing,
        .multi_timer_check              = NULL,
        .apicid_to_node                 = bigsmp_apicid_to_node,
-       .cpu_to_logical_apicid          = bigsmp_cpu_to_logical_apicid,
        .cpu_present_to_apicid          = bigsmp_cpu_present_to_apicid,
        .apicid_to_cpu_present          = physid_set_mask_of_physid,
        .setup_portio_remap             = NULL,

diff --git a/arch/x86/kernel/apic/es7000_32.c b/arch/x86/kernel/apic/es7000_32.c
index 7cb73e1..6840681 100644 (file)
--- a/arch/x86/kernel/apic/es7000_32.c
+++ b/arch/x86/kernel/apic/es7000_32.c
@@ -528,18 +528,6 @@ static void es7000_apicid_to_cpu_present(int phys_apicid, physid_mask_t *retmap)
        ++cpu_id;
 }
 
-/* Mapping from cpu number to logical apicid */
-static int es7000_cpu_to_logical_apicid(int cpu)
-{
-#ifdef CONFIG_SMP
-       if (cpu >= nr_cpu_ids)
-               return BAD_APICID;
-       return early_per_cpu(x86_cpu_to_logical_apicid, cpu);
-#else
-       return logical_smp_processor_id();
-#endif
-}
-
 static void es7000_ioapic_phys_id_map(physid_mask_t *phys_map, physid_mask_t *retmap)
 {
        /* For clustered we don't have a good way to do this yet - hack */
@@ -561,7 +549,7 @@ static unsigned int es7000_cpu_mask_to_apicid(const struct cpumask *cpumask)
         * The cpus in the mask must all be on the apic cluster.
         */
        for_each_cpu(cpu, cpumask) {
-               int new_apicid = es7000_cpu_to_logical_apicid(cpu);
+               int new_apicid = early_per_cpu(x86_cpu_to_logical_apicid, cpu);
 
                if (round && APIC_CLUSTER(apicid) != APIC_CLUSTER(new_apicid)) {
                        WARN(1, "Not a valid mask!");
@@ -578,7 +566,7 @@ static unsigned int
 es7000_cpu_mask_to_apicid_and(const struct cpumask *inmask,
                              const struct cpumask *andmask)
 {
-       int apicid = es7000_cpu_to_logical_apicid(0);
+       int apicid = early_per_cpu(x86_cpu_to_logical_apicid, 0);
        cpumask_var_t cpumask;
 
        if (!alloc_cpumask_var(&cpumask, GFP_ATOMIC))
@@ -656,7 +644,6 @@ struct apic __refdata apic_es7000_cluster = {
        .setup_apic_routing             = es7000_setup_apic_routing,
        .multi_timer_check              = NULL,
        .apicid_to_node                 = es7000_apicid_to_node,
-       .cpu_to_logical_apicid          = es7000_cpu_to_logical_apicid,
        .cpu_present_to_apicid          = es7000_cpu_present_to_apicid,
        .apicid_to_cpu_present          = es7000_apicid_to_cpu_present,
        .setup_portio_remap             = NULL,
@@ -721,7 +708,6 @@ struct apic __refdata apic_es7000 = {
        .setup_apic_routing             = es7000_setup_apic_routing,
        .multi_timer_check              = NULL,
        .apicid_to_node                 = es7000_apicid_to_node,
-       .cpu_to_logical_apicid          = es7000_cpu_to_logical_apicid,
        .cpu_present_to_apicid          = es7000_cpu_present_to_apicid,
        .apicid_to_cpu_present          = es7000_apicid_to_cpu_present,
        .setup_portio_remap             = NULL,

diff --git a/arch/x86/kernel/apic/numaq_32.c b/arch/x86/kernel/apic/numaq_32.c
index 4ed90c4..2b434d5 100644 (file)
--- a/arch/x86/kernel/apic/numaq_32.c
+++ b/arch/x86/kernel/apic/numaq_32.c
@@ -373,13 +373,6 @@ static inline void numaq_ioapic_phys_id_map(physid_mask_t *phys_map, physid_mask
        return physids_promote(0xFUL, retmap);
 }
 
-static inline int numaq_cpu_to_logical_apicid(int cpu)
-{
-       if (cpu >= nr_cpu_ids)
-               return BAD_APICID;
-       return early_per_cpu(x86_cpu_to_logical_apicid, cpu);
-}
-
 /*
  * Supporting over 60 cpus on NUMA-Q requires a locality-dependent
  * cpu to APIC ID relation to properly interact with the intelligent
@@ -509,7 +502,6 @@ struct apic __refdata apic_numaq = {
        .setup_apic_routing             = numaq_setup_apic_routing,
        .multi_timer_check              = numaq_multi_timer_check,
        .apicid_to_node                 = numaq_apicid_to_node,
-       .cpu_to_logical_apicid          = numaq_cpu_to_logical_apicid,
        .cpu_present_to_apicid          = numaq_cpu_present_to_apicid,
        .apicid_to_cpu_present          = numaq_apicid_to_cpu_present,
        .setup_portio_remap             = numaq_setup_portio_remap,

diff --git a/arch/x86/kernel/apic/probe_32.c b/arch/x86/kernel/apic/probe_32.c
index 99d2fe0..24a6828 100644 (file)
--- a/arch/x86/kernel/apic/probe_32.c
+++ b/arch/x86/kernel/apic/probe_32.c
@@ -131,7 +131,6 @@ struct apic apic_default = {
        .setup_apic_routing             = setup_apic_flat_routing,
        .multi_timer_check              = NULL,
        .apicid_to_node                 = default_apicid_to_node,
-       .cpu_to_logical_apicid          = default_cpu_to_logical_apicid,
        .cpu_present_to_apicid          = default_cpu_present_to_apicid,
        .apicid_to_cpu_present          = physid_set_mask_of_physid,
        .setup_portio_remap             = NULL,

diff --git a/arch/x86/kernel/apic/summit_32.c b/arch/x86/kernel/apic/summit_32.c
index 82cfc3e..1ef4c14 100644 (file)
--- a/arch/x86/kernel/apic/summit_32.c
+++ b/arch/x86/kernel/apic/summit_32.c
@@ -241,18 +241,6 @@ static int summit_apicid_to_node(int logical_apicid)
 #endif
 }
 
-/* Mapping from cpu number to logical apicid */
-static inline int summit_cpu_to_logical_apicid(int cpu)
-{
-#ifdef CONFIG_SMP
-       if (cpu >= nr_cpu_ids)
-               return BAD_APICID;
-       return early_per_cpu(x86_cpu_to_logical_apicid, cpu);
-#else
-       return logical_smp_processor_id();
-#endif
-}
-
 static int summit_cpu_present_to_apicid(int mps_cpu)
 {
        if (mps_cpu < nr_cpu_ids)
@@ -286,7 +274,7 @@ static unsigned int summit_cpu_mask_to_apicid(const struct cpumask *cpumask)
         * The cpus in the mask must all be on the apic cluster.
         */
        for_each_cpu(cpu, cpumask) {
-               int new_apicid = summit_cpu_to_logical_apicid(cpu);
+               int new_apicid = early_per_cpu(x86_cpu_to_logical_apicid, cpu);
 
                if (round && APIC_CLUSTER(apicid) != APIC_CLUSTER(new_apicid)) {
                        printk("%s: Not a valid mask!\n", __func__);
@@ -301,7 +289,7 @@ static unsigned int summit_cpu_mask_to_apicid(const struct cpumask *cpumask)
 static unsigned int summit_cpu_mask_to_apicid_and(const struct cpumask *inmask,
                              const struct cpumask *andmask)
 {
-       int apicid = summit_cpu_to_logical_apicid(0);
+       int apicid = early_per_cpu(x86_cpu_to_logical_apicid, 0);
        cpumask_var_t cpumask;
 
        if (!alloc_cpumask_var(&cpumask, GFP_ATOMIC))
@@ -529,7 +517,6 @@ struct apic apic_summit = {
        .setup_apic_routing             = summit_setup_apic_routing,
        .multi_timer_check              = NULL,
        .apicid_to_node                 = summit_apicid_to_node,
-       .cpu_to_logical_apicid          = summit_cpu_to_logical_apicid,
        .cpu_present_to_apicid          = summit_cpu_present_to_apicid,
        .apicid_to_cpu_present          = summit_apicid_to_cpu_present,
        .setup_portio_remap             = NULL,

diff --git a/arch/x86/kernel/apic/x2apic_cluster.c b/arch/x86/kernel/apic/x2apic_cluster.c
index cf69c59..badc1fd 100644 (file)
--- a/arch/x86/kernel/apic/x2apic_cluster.c
+++ b/arch/x86/kernel/apic/x2apic_cluster.c
@@ -207,7 +207,6 @@ struct apic apic_x2apic_cluster = {
        .setup_apic_routing             = NULL,
        .multi_timer_check              = NULL,
        .apicid_to_node                 = NULL,
-       .cpu_to_logical_apicid          = NULL,
        .cpu_present_to_apicid          = default_cpu_present_to_apicid,
        .apicid_to_cpu_present          = NULL,
        .setup_portio_remap             = NULL,

diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c
index 8972f38..f28bf4c 100644 (file)
--- a/arch/x86/kernel/apic/x2apic_phys.c
+++ b/arch/x86/kernel/apic/x2apic_phys.c
@@ -196,7 +196,6 @@ struct apic apic_x2apic_phys = {
        .setup_apic_routing             = NULL,
        .multi_timer_check              = NULL,
        .apicid_to_node                 = NULL,
-       .cpu_to_logical_apicid          = NULL,
        .cpu_present_to_apicid          = default_cpu_present_to_apicid,
        .apicid_to_cpu_present          = NULL,
        .setup_portio_remap             = NULL,

diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index bd16b58..6027620 100644 (file)
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -339,7 +339,6 @@ struct apic __refdata apic_x2apic_uv_x = {
        .setup_apic_routing             = NULL,
        .multi_timer_check              = NULL,
        .apicid_to_node                 = NULL,
-       .cpu_to_logical_apicid          = NULL,
        .cpu_present_to_apicid          = default_cpu_present_to_apicid,
        .apicid_to_cpu_present          = NULL,
        .setup_portio_remap             = NULL,