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Diffstat (limited to 'arch/x86/kernel/apic/bigsmp_32.c')
-rw-r--r--arch/x86/kernel/apic/bigsmp_32.c34
1 files changed, 16 insertions, 18 deletions
diff --git a/arch/x86/kernel/apic/bigsmp_32.c b/arch/x86/kernel/apic/bigsmp_32.c
index cb804c5091b..541a2e43165 100644
--- a/arch/x86/kernel/apic/bigsmp_32.c
+++ b/arch/x86/kernel/apic/bigsmp_32.c
@@ -45,6 +45,12 @@ static unsigned long bigsmp_check_apicid_present(int bit)
45 return 1; 45 return 1;
46} 46}
47 47
48static int bigsmp_early_logical_apicid(int cpu)
49{
50 /* on bigsmp, logical apicid is the same as physical */
51 return early_per_cpu(x86_cpu_to_apicid, cpu);
52}
53
48static inline unsigned long calculate_ldr(int cpu) 54static inline unsigned long calculate_ldr(int cpu)
49{ 55{
50 unsigned long val, id; 56 unsigned long val, id;
@@ -80,11 +86,6 @@ static void bigsmp_setup_apic_routing(void)
80 nr_ioapics); 86 nr_ioapics);
81} 87}
82 88
83static int bigsmp_apicid_to_node(int logical_apicid)
84{
85 return apicid_2_node[hard_smp_processor_id()];
86}
87
88static int bigsmp_cpu_present_to_apicid(int mps_cpu) 89static int bigsmp_cpu_present_to_apicid(int mps_cpu)
89{ 90{
90 if (mps_cpu < nr_cpu_ids) 91 if (mps_cpu < nr_cpu_ids)
@@ -93,14 +94,6 @@ static int bigsmp_cpu_present_to_apicid(int mps_cpu)
93 return BAD_APICID; 94 return BAD_APICID;
94} 95}
95 96
96/* Mapping from cpu number to logical apicid */
97static inline int bigsmp_cpu_to_logical_apicid(int cpu)
98{
99 if (cpu >= nr_cpu_ids)
100 return BAD_APICID;
101 return cpu_physical_id(cpu);
102}
103
104static void bigsmp_ioapic_phys_id_map(physid_mask_t *phys_map, physid_mask_t *retmap) 97static void bigsmp_ioapic_phys_id_map(physid_mask_t *phys_map, physid_mask_t *retmap)
105{ 98{
106 /* For clustered we don't have a good way to do this yet - hack */ 99 /* For clustered we don't have a good way to do this yet - hack */
@@ -115,7 +108,11 @@ static int bigsmp_check_phys_apicid_present(int phys_apicid)
115/* As we are using single CPU as destination, pick only one CPU here */ 108/* As we are using single CPU as destination, pick only one CPU here */
116static unsigned int bigsmp_cpu_mask_to_apicid(const struct cpumask *cpumask) 109static unsigned int bigsmp_cpu_mask_to_apicid(const struct cpumask *cpumask)
117{ 110{
118 return bigsmp_cpu_to_logical_apicid(cpumask_first(cpumask)); 111 int cpu = cpumask_first(cpumask);
112
113 if (cpu < nr_cpu_ids)
114 return cpu_physical_id(cpu);
115 return BAD_APICID;
119} 116}
120 117
121static unsigned int bigsmp_cpu_mask_to_apicid_and(const struct cpumask *cpumask, 118static unsigned int bigsmp_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
@@ -129,9 +126,9 @@ static unsigned int bigsmp_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
129 */ 126 */
130 for_each_cpu_and(cpu, cpumask, andmask) { 127 for_each_cpu_and(cpu, cpumask, andmask) {
131 if (cpumask_test_cpu(cpu, cpu_online_mask)) 128 if (cpumask_test_cpu(cpu, cpu_online_mask))
132 break; 129 return cpu_physical_id(cpu);
133 } 130 }
134 return bigsmp_cpu_to_logical_apicid(cpu); 131 return BAD_APICID;
135} 132}
136 133
137static int bigsmp_phys_pkg_id(int cpuid_apic, int index_msb) 134static int bigsmp_phys_pkg_id(int cpuid_apic, int index_msb)
@@ -219,8 +216,6 @@ struct apic apic_bigsmp = {
219 .ioapic_phys_id_map = bigsmp_ioapic_phys_id_map, 216 .ioapic_phys_id_map = bigsmp_ioapic_phys_id_map,
220 .setup_apic_routing = bigsmp_setup_apic_routing, 217 .setup_apic_routing = bigsmp_setup_apic_routing,
221 .multi_timer_check = NULL, 218 .multi_timer_check = NULL,
222 .apicid_to_node = bigsmp_apicid_to_node,
223 .cpu_to_logical_apicid = bigsmp_cpu_to_logical_apicid,
224 .cpu_present_to_apicid = bigsmp_cpu_present_to_apicid, 219 .cpu_present_to_apicid = bigsmp_cpu_present_to_apicid,
225 .apicid_to_cpu_present = physid_set_mask_of_physid, 220 .apicid_to_cpu_present = physid_set_mask_of_physid,
226 .setup_portio_remap = NULL, 221 .setup_portio_remap = NULL,
@@ -256,4 +251,7 @@ struct apic apic_bigsmp = {
256 .icr_write = native_apic_icr_write, 251 .icr_write = native_apic_icr_write,
257 .wait_icr_idle = native_apic_wait_icr_idle, 252 .wait_icr_idle = native_apic_wait_icr_idle,
258 .safe_wait_icr_idle = native_safe_apic_wait_icr_idle, 253 .safe_wait_icr_idle = native_safe_apic_wait_icr_idle,
254
255 .x86_32_early_logical_apicid = bigsmp_early_logical_apicid,
256 .x86_32_numa_cpu_node = default_x86_32_numa_cpu_node,
259}; 257};