Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2004 James Cleverdon, IBM. |
| 3 | * Subject to the GNU Public License, v.2 |
| 4 | * |
Andi Kleen | f8d3119 | 2005-07-28 21:15:42 -0700 | [diff] [blame] | 5 | * Flat APIC subarch code. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | * |
| 7 | * Hacked for x86-64 by James Cleverdon from i386 architecture code by |
| 8 | * Martin Bligh, Andi Kleen, James Bottomley, John Stultz, and |
| 9 | * James Cleverdon. |
| 10 | */ |
Andi Kleen | f19cccf | 2007-05-02 19:27:21 +0200 | [diff] [blame] | 11 | #include <linux/errno.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 12 | #include <linux/threads.h> |
| 13 | #include <linux/cpumask.h> |
| 14 | #include <linux/string.h> |
| 15 | #include <linux/kernel.h> |
| 16 | #include <linux/ctype.h> |
| 17 | #include <linux/init.h> |
Suresh Siddha | 0c81c74 | 2008-07-10 11:16:48 -0700 | [diff] [blame] | 18 | #include <linux/hardirq.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | #include <asm/smp.h> |
Ingo Molnar | 7b6aa33 | 2009-02-17 13:58:15 +0100 | [diff] [blame] | 20 | #include <asm/apic.h> |
Yinghai Lu | c1eeb2d | 2009-02-16 23:02:14 -0800 | [diff] [blame] | 21 | #include <asm/ipi.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 22 | |
Yinghai Lu | 1b9b89e | 2008-07-21 22:08:21 -0700 | [diff] [blame] | 23 | #ifdef CONFIG_ACPI |
| 24 | #include <acpi/acpi_bus.h> |
| 25 | #endif |
| 26 | |
Marcin Slusarz | 983f91f | 2008-10-12 11:44:08 +0200 | [diff] [blame] | 27 | static int flat_acpi_madt_oem_check(char *oem_id, char *oem_table_id) |
Yinghai Lu | 1b9b89e | 2008-07-21 22:08:21 -0700 | [diff] [blame] | 28 | { |
| 29 | return 1; |
| 30 | } |
| 31 | |
Mike Travis | bcda016 | 2008-12-16 17:33:59 -0800 | [diff] [blame] | 32 | static const struct cpumask *flat_target_cpus(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | { |
Mike Travis | bcda016 | 2008-12-16 17:33:59 -0800 | [diff] [blame] | 34 | return cpu_online_mask; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | } |
| 36 | |
Mike Travis | bcda016 | 2008-12-16 17:33:59 -0800 | [diff] [blame] | 37 | static void flat_vector_allocation_domain(int cpu, struct cpumask *retmask) |
Eric W. Biederman | c7111c13 | 2006-10-08 07:47:55 -0600 | [diff] [blame] | 38 | { |
| 39 | /* Careful. Some cpus do not strictly honor the set of cpus |
| 40 | * specified in the interrupt destination when using lowest |
| 41 | * priority interrupt delivery mode. |
| 42 | * |
| 43 | * In particular there was a hyperthreading cpu observed to |
| 44 | * deliver interrupts to the wrong hyperthread when only one |
| 45 | * hyperthread was specified in the interrupt desitination. |
| 46 | */ |
Mike Travis | bcda016 | 2008-12-16 17:33:59 -0800 | [diff] [blame] | 47 | cpumask_clear(retmask); |
| 48 | cpumask_bits(retmask)[0] = APIC_ALL_CPUS; |
Eric W. Biederman | c7111c13 | 2006-10-08 07:47:55 -0600 | [diff] [blame] | 49 | } |
| 50 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | /* |
| 52 | * Set up the logical destination ID. |
| 53 | * |
| 54 | * Intel recommends to set DFR, LDR and TPR before enabling |
| 55 | * an APIC. See e.g. "AP-388 82489DX User's Manual" (Intel |
| 56 | * document number 292116). So here it goes... |
| 57 | */ |
| 58 | static void flat_init_apic_ldr(void) |
| 59 | { |
| 60 | unsigned long val; |
| 61 | unsigned long num, id; |
| 62 | |
| 63 | num = smp_processor_id(); |
| 64 | id = 1UL << num; |
Andi Kleen | eddfb4e | 2005-09-12 18:49:23 +0200 | [diff] [blame] | 65 | apic_write(APIC_DFR, APIC_DFR_FLAT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | val = apic_read(APIC_LDR) & ~APIC_LDR_MASK; |
| 67 | val |= SET_APIC_LOGICAL_ID(id); |
Andi Kleen | eddfb4e | 2005-09-12 18:49:23 +0200 | [diff] [blame] | 68 | apic_write(APIC_LDR, val); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | } |
| 70 | |
Mike Travis | e798673 | 2008-12-16 17:33:52 -0800 | [diff] [blame] | 71 | static inline void _flat_send_IPI_mask(unsigned long mask, int vector) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | unsigned long flags; |
| 74 | |
Fernando Luis Vázquez Cao | 2b94ab2 | 2006-09-26 10:52:33 +0200 | [diff] [blame] | 75 | local_irq_save(flags); |
Ingo Molnar | dac5f41 | 2009-01-28 15:42:24 +0100 | [diff] [blame] | 76 | __default_send_IPI_dest_field(mask, vector, apic->dest_logical); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | local_irq_restore(flags); |
| 78 | } |
| 79 | |
Mike Travis | bcda016 | 2008-12-16 17:33:59 -0800 | [diff] [blame] | 80 | static void flat_send_IPI_mask(const struct cpumask *cpumask, int vector) |
Mike Travis | e798673 | 2008-12-16 17:33:52 -0800 | [diff] [blame] | 81 | { |
Mike Travis | bcda016 | 2008-12-16 17:33:59 -0800 | [diff] [blame] | 82 | unsigned long mask = cpumask_bits(cpumask)[0]; |
Mike Travis | e798673 | 2008-12-16 17:33:52 -0800 | [diff] [blame] | 83 | |
| 84 | _flat_send_IPI_mask(mask, vector); |
| 85 | } |
| 86 | |
Ingo Molnar | dac5f41 | 2009-01-28 15:42:24 +0100 | [diff] [blame] | 87 | static void |
| 88 | flat_send_IPI_mask_allbutself(const struct cpumask *cpumask, int vector) |
Mike Travis | e798673 | 2008-12-16 17:33:52 -0800 | [diff] [blame] | 89 | { |
Mike Travis | bcda016 | 2008-12-16 17:33:59 -0800 | [diff] [blame] | 90 | unsigned long mask = cpumask_bits(cpumask)[0]; |
Mike Travis | e798673 | 2008-12-16 17:33:52 -0800 | [diff] [blame] | 91 | int cpu = smp_processor_id(); |
| 92 | |
| 93 | if (cpu < BITS_PER_LONG) |
| 94 | clear_bit(cpu, &mask); |
Ingo Molnar | dac5f41 | 2009-01-28 15:42:24 +0100 | [diff] [blame] | 95 | |
Mike Travis | e798673 | 2008-12-16 17:33:52 -0800 | [diff] [blame] | 96 | _flat_send_IPI_mask(mask, vector); |
| 97 | } |
| 98 | |
Ashok Raj | 884d9e4 | 2005-06-25 14:55:02 -0700 | [diff] [blame] | 99 | static void flat_send_IPI_allbutself(int vector) |
| 100 | { |
Mike Travis | e798673 | 2008-12-16 17:33:52 -0800 | [diff] [blame] | 101 | int cpu = smp_processor_id(); |
Keith Owens | e77deac | 2006-06-26 13:59:56 +0200 | [diff] [blame] | 102 | #ifdef CONFIG_HOTPLUG_CPU |
| 103 | int hotplug = 1; |
Ashok Raj | fdf26d9 | 2005-09-09 13:01:52 -0700 | [diff] [blame] | 104 | #else |
Keith Owens | e77deac | 2006-06-26 13:59:56 +0200 | [diff] [blame] | 105 | int hotplug = 0; |
Ashok Raj | fdf26d9 | 2005-09-09 13:01:52 -0700 | [diff] [blame] | 106 | #endif |
Keith Owens | e77deac | 2006-06-26 13:59:56 +0200 | [diff] [blame] | 107 | if (hotplug || vector == NMI_VECTOR) { |
Mike Travis | bcda016 | 2008-12-16 17:33:59 -0800 | [diff] [blame] | 108 | if (!cpumask_equal(cpu_online_mask, cpumask_of(cpu))) { |
| 109 | unsigned long mask = cpumask_bits(cpu_online_mask)[0]; |
Keith Owens | e77deac | 2006-06-26 13:59:56 +0200 | [diff] [blame] | 110 | |
Mike Travis | e798673 | 2008-12-16 17:33:52 -0800 | [diff] [blame] | 111 | if (cpu < BITS_PER_LONG) |
| 112 | clear_bit(cpu, &mask); |
Keith Owens | e77deac | 2006-06-26 13:59:56 +0200 | [diff] [blame] | 113 | |
Mike Travis | e798673 | 2008-12-16 17:33:52 -0800 | [diff] [blame] | 114 | _flat_send_IPI_mask(mask, vector); |
| 115 | } |
Keith Owens | e77deac | 2006-06-26 13:59:56 +0200 | [diff] [blame] | 116 | } else if (num_online_cpus() > 1) { |
Ingo Molnar | dac5f41 | 2009-01-28 15:42:24 +0100 | [diff] [blame] | 117 | __default_send_IPI_shortcut(APIC_DEST_ALLBUT, |
| 118 | vector, apic->dest_logical); |
Keith Owens | e77deac | 2006-06-26 13:59:56 +0200 | [diff] [blame] | 119 | } |
Ashok Raj | 884d9e4 | 2005-06-25 14:55:02 -0700 | [diff] [blame] | 120 | } |
| 121 | |
| 122 | static void flat_send_IPI_all(int vector) |
| 123 | { |
Ingo Molnar | dac5f41 | 2009-01-28 15:42:24 +0100 | [diff] [blame] | 124 | if (vector == NMI_VECTOR) { |
Mike Travis | bcda016 | 2008-12-16 17:33:59 -0800 | [diff] [blame] | 125 | flat_send_IPI_mask(cpu_online_mask, vector); |
Ingo Molnar | dac5f41 | 2009-01-28 15:42:24 +0100 | [diff] [blame] | 126 | } else { |
| 127 | __default_send_IPI_shortcut(APIC_DEST_ALLINC, |
| 128 | vector, apic->dest_logical); |
| 129 | } |
Ashok Raj | 884d9e4 | 2005-06-25 14:55:02 -0700 | [diff] [blame] | 130 | } |
| 131 | |
Ingo Molnar | ca6c8ed | 2009-01-28 14:08:38 +0100 | [diff] [blame] | 132 | static unsigned int flat_get_apic_id(unsigned long x) |
Yinghai Lu | f910a9d | 2008-07-12 01:01:20 -0700 | [diff] [blame] | 133 | { |
| 134 | unsigned int id; |
| 135 | |
| 136 | id = (((x)>>24) & 0xFFu); |
Ingo Molnar | ca6c8ed | 2009-01-28 14:08:38 +0100 | [diff] [blame] | 137 | |
Yinghai Lu | f910a9d | 2008-07-12 01:01:20 -0700 | [diff] [blame] | 138 | return id; |
| 139 | } |
| 140 | |
| 141 | static unsigned long set_apic_id(unsigned int id) |
| 142 | { |
| 143 | unsigned long x; |
| 144 | |
| 145 | x = ((id & 0xFFu)<<24); |
| 146 | return x; |
| 147 | } |
| 148 | |
Suresh Siddha | 0c81c74 | 2008-07-10 11:16:48 -0700 | [diff] [blame] | 149 | static unsigned int read_xapic_id(void) |
| 150 | { |
| 151 | unsigned int id; |
| 152 | |
Ingo Molnar | ca6c8ed | 2009-01-28 14:08:38 +0100 | [diff] [blame] | 153 | id = flat_get_apic_id(apic_read(APIC_ID)); |
Suresh Siddha | 0c81c74 | 2008-07-10 11:16:48 -0700 | [diff] [blame] | 154 | return id; |
| 155 | } |
| 156 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | static int flat_apic_id_registered(void) |
| 158 | { |
Suresh Siddha | 0c81c74 | 2008-07-10 11:16:48 -0700 | [diff] [blame] | 159 | return physid_isset(read_xapic_id(), phys_cpu_present_map); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | } |
| 161 | |
Ingo Molnar | d4c9a9f | 2009-01-28 13:31:22 +0100 | [diff] [blame] | 162 | static int flat_phys_pkg_id(int initial_apic_id, int index_msb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | { |
ravikiran thirumalai | 0f4fdb7 | 2006-06-26 13:56:04 +0200 | [diff] [blame] | 164 | return hard_smp_processor_id() >> index_msb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | } |
| 166 | |
Ingo Molnar | be163a1 | 2009-02-17 16:28:46 +0100 | [diff] [blame] | 167 | struct apic apic_flat = { |
Ingo Molnar | f2f05ee | 2009-01-28 02:37:01 +0100 | [diff] [blame] | 168 | .name = "flat", |
| 169 | .probe = NULL, |
| 170 | .acpi_madt_oem_check = flat_acpi_madt_oem_check, |
| 171 | .apic_id_registered = flat_apic_id_registered, |
| 172 | |
Ingo Molnar | f8987a1 | 2009-01-28 04:02:31 +0100 | [diff] [blame] | 173 | .irq_delivery_mode = dest_LowestPrio, |
Ingo Molnar | 0b06e73 | 2009-01-28 05:13:04 +0100 | [diff] [blame] | 174 | .irq_dest_mode = 1, /* logical */ |
Ingo Molnar | f2f05ee | 2009-01-28 02:37:01 +0100 | [diff] [blame] | 175 | |
| 176 | .target_cpus = flat_target_cpus, |
Ingo Molnar | 08125d3 | 2009-01-28 05:08:44 +0100 | [diff] [blame] | 177 | .disable_esr = 0, |
Ingo Molnar | bdb1a9b | 2009-01-28 05:29:25 +0100 | [diff] [blame] | 178 | .dest_logical = APIC_DEST_LOGICAL, |
Ingo Molnar | f2f05ee | 2009-01-28 02:37:01 +0100 | [diff] [blame] | 179 | .check_apicid_used = NULL, |
| 180 | .check_apicid_present = NULL, |
| 181 | |
Ingo Molnar | f2f05ee | 2009-01-28 02:37:01 +0100 | [diff] [blame] | 182 | .vector_allocation_domain = flat_vector_allocation_domain, |
| 183 | .init_apic_ldr = flat_init_apic_ldr, |
| 184 | |
| 185 | .ioapic_phys_id_map = NULL, |
| 186 | .setup_apic_routing = NULL, |
| 187 | .multi_timer_check = NULL, |
| 188 | .apicid_to_node = NULL, |
| 189 | .cpu_to_logical_apicid = NULL, |
Ingo Molnar | a21769a4 | 2009-01-28 06:50:47 +0100 | [diff] [blame] | 190 | .cpu_present_to_apicid = default_cpu_present_to_apicid, |
Ingo Molnar | f2f05ee | 2009-01-28 02:37:01 +0100 | [diff] [blame] | 191 | .apicid_to_cpu_present = NULL, |
| 192 | .setup_portio_remap = NULL, |
Ingo Molnar | a27a621 | 2009-01-28 12:43:18 +0100 | [diff] [blame] | 193 | .check_phys_apicid_present = default_check_phys_apicid_present, |
Ingo Molnar | f2f05ee | 2009-01-28 02:37:01 +0100 | [diff] [blame] | 194 | .enable_apic_mode = NULL, |
Ingo Molnar | d4c9a9f | 2009-01-28 13:31:22 +0100 | [diff] [blame] | 195 | .phys_pkg_id = flat_phys_pkg_id, |
Ingo Molnar | f2f05ee | 2009-01-28 02:37:01 +0100 | [diff] [blame] | 196 | .mps_oem_check = NULL, |
| 197 | |
Ingo Molnar | ca6c8ed | 2009-01-28 14:08:38 +0100 | [diff] [blame] | 198 | .get_apic_id = flat_get_apic_id, |
Ingo Molnar | f2f05ee | 2009-01-28 02:37:01 +0100 | [diff] [blame] | 199 | .set_apic_id = set_apic_id, |
| 200 | .apic_id_mask = 0xFFu << 24, |
| 201 | |
Yinghai Lu | f56e503 | 2009-03-24 14:16:30 -0700 | [diff] [blame] | 202 | .cpu_mask_to_apicid = default_cpu_mask_to_apicid, |
| 203 | .cpu_mask_to_apicid_and = default_cpu_mask_to_apicid_and, |
Ingo Molnar | f2f05ee | 2009-01-28 02:37:01 +0100 | [diff] [blame] | 204 | |
| 205 | .send_IPI_mask = flat_send_IPI_mask, |
| 206 | .send_IPI_mask_allbutself = flat_send_IPI_mask_allbutself, |
| 207 | .send_IPI_allbutself = flat_send_IPI_allbutself, |
| 208 | .send_IPI_all = flat_send_IPI_all, |
| 209 | .send_IPI_self = apic_send_IPI_self, |
| 210 | |
Ingo Molnar | abfa584 | 2009-01-28 16:15:16 +0100 | [diff] [blame] | 211 | .trampoline_phys_low = DEFAULT_TRAMPOLINE_PHYS_LOW, |
| 212 | .trampoline_phys_high = DEFAULT_TRAMPOLINE_PHYS_HIGH, |
Ingo Molnar | f2f05ee | 2009-01-28 02:37:01 +0100 | [diff] [blame] | 213 | .wait_for_init_deassert = NULL, |
| 214 | .smp_callin_clear_local_apic = NULL, |
Yinghai Lu | 08d63b1 | 2009-04-08 08:00:01 -0700 | [diff] [blame] | 215 | .inquire_remote_apic = default_inquire_remote_apic, |
Yinghai Lu | c1eeb2d | 2009-02-16 23:02:14 -0800 | [diff] [blame] | 216 | |
| 217 | .read = native_apic_mem_read, |
| 218 | .write = native_apic_mem_write, |
| 219 | .icr_read = native_apic_icr_read, |
| 220 | .icr_write = native_apic_icr_write, |
| 221 | .wait_icr_idle = native_apic_wait_icr_idle, |
| 222 | .safe_wait_icr_idle = native_safe_apic_wait_icr_idle, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | }; |
Andi Kleen | f8d3119 | 2005-07-28 21:15:42 -0700 | [diff] [blame] | 224 | |
| 225 | /* |
| 226 | * Physflat mode is used when there are more than 8 CPUs on a AMD system. |
| 227 | * We cannot use logical delivery in this case because the mask |
| 228 | * overflows, so use physical mode. |
| 229 | */ |
Marcin Slusarz | fae17216 | 2008-10-12 11:44:09 +0200 | [diff] [blame] | 230 | static int physflat_acpi_madt_oem_check(char *oem_id, char *oem_table_id) |
Yinghai Lu | 1b9b89e | 2008-07-21 22:08:21 -0700 | [diff] [blame] | 231 | { |
| 232 | #ifdef CONFIG_ACPI |
| 233 | /* |
| 234 | * Quirk: some x86_64 machines can only use physical APIC mode |
| 235 | * regardless of how many processors are present (x86_64 ES7000 |
| 236 | * is an example). |
| 237 | */ |
| 238 | if (acpi_gbl_FADT.header.revision > FADT2_REVISION_ID && |
Yinghai Lu | 02c1df1 | 2008-09-04 20:57:11 +0200 | [diff] [blame] | 239 | (acpi_gbl_FADT.flags & ACPI_FADT_APIC_PHYSICAL)) { |
| 240 | printk(KERN_DEBUG "system APIC only can use physical flat"); |
Yinghai Lu | 1b9b89e | 2008-07-21 22:08:21 -0700 | [diff] [blame] | 241 | return 1; |
Yinghai Lu | 02c1df1 | 2008-09-04 20:57:11 +0200 | [diff] [blame] | 242 | } |
Yinghai Lu | 1b9b89e | 2008-07-21 22:08:21 -0700 | [diff] [blame] | 243 | #endif |
| 244 | |
| 245 | return 0; |
| 246 | } |
Andi Kleen | f8d3119 | 2005-07-28 21:15:42 -0700 | [diff] [blame] | 247 | |
Mike Travis | bcda016 | 2008-12-16 17:33:59 -0800 | [diff] [blame] | 248 | static const struct cpumask *physflat_target_cpus(void) |
Andi Kleen | f8d3119 | 2005-07-28 21:15:42 -0700 | [diff] [blame] | 249 | { |
Mike Travis | bcda016 | 2008-12-16 17:33:59 -0800 | [diff] [blame] | 250 | return cpu_online_mask; |
Andi Kleen | f8d3119 | 2005-07-28 21:15:42 -0700 | [diff] [blame] | 251 | } |
| 252 | |
Mike Travis | bcda016 | 2008-12-16 17:33:59 -0800 | [diff] [blame] | 253 | static void physflat_vector_allocation_domain(int cpu, struct cpumask *retmask) |
Eric W. Biederman | c7111c13 | 2006-10-08 07:47:55 -0600 | [diff] [blame] | 254 | { |
Mike Travis | bcda016 | 2008-12-16 17:33:59 -0800 | [diff] [blame] | 255 | cpumask_clear(retmask); |
| 256 | cpumask_set_cpu(cpu, retmask); |
Eric W. Biederman | c7111c13 | 2006-10-08 07:47:55 -0600 | [diff] [blame] | 257 | } |
| 258 | |
Mike Travis | bcda016 | 2008-12-16 17:33:59 -0800 | [diff] [blame] | 259 | static void physflat_send_IPI_mask(const struct cpumask *cpumask, int vector) |
Andi Kleen | f8d3119 | 2005-07-28 21:15:42 -0700 | [diff] [blame] | 260 | { |
Yinghai Lu | 43f3989 | 2009-01-29 19:31:49 -0800 | [diff] [blame] | 261 | default_send_IPI_mask_sequence_phys(cpumask, vector); |
Andi Kleen | f8d3119 | 2005-07-28 21:15:42 -0700 | [diff] [blame] | 262 | } |
| 263 | |
Mike Travis | bcda016 | 2008-12-16 17:33:59 -0800 | [diff] [blame] | 264 | static void physflat_send_IPI_mask_allbutself(const struct cpumask *cpumask, |
Mike Travis | e798673 | 2008-12-16 17:33:52 -0800 | [diff] [blame] | 265 | int vector) |
| 266 | { |
Yinghai Lu | 43f3989 | 2009-01-29 19:31:49 -0800 | [diff] [blame] | 267 | default_send_IPI_mask_allbutself_phys(cpumask, vector); |
Mike Travis | e798673 | 2008-12-16 17:33:52 -0800 | [diff] [blame] | 268 | } |
| 269 | |
Andi Kleen | f8d3119 | 2005-07-28 21:15:42 -0700 | [diff] [blame] | 270 | static void physflat_send_IPI_allbutself(int vector) |
| 271 | { |
Yinghai Lu | 43f3989 | 2009-01-29 19:31:49 -0800 | [diff] [blame] | 272 | default_send_IPI_mask_allbutself_phys(cpu_online_mask, vector); |
Andi Kleen | f8d3119 | 2005-07-28 21:15:42 -0700 | [diff] [blame] | 273 | } |
| 274 | |
| 275 | static void physflat_send_IPI_all(int vector) |
| 276 | { |
Mike Travis | bcda016 | 2008-12-16 17:33:59 -0800 | [diff] [blame] | 277 | physflat_send_IPI_mask(cpu_online_mask, vector); |
Andi Kleen | f8d3119 | 2005-07-28 21:15:42 -0700 | [diff] [blame] | 278 | } |
| 279 | |
Mike Travis | bcda016 | 2008-12-16 17:33:59 -0800 | [diff] [blame] | 280 | static unsigned int physflat_cpu_mask_to_apicid(const struct cpumask *cpumask) |
Andi Kleen | f8d3119 | 2005-07-28 21:15:42 -0700 | [diff] [blame] | 281 | { |
| 282 | int cpu; |
| 283 | |
| 284 | /* |
| 285 | * We're using fixed IRQ delivery, can only return one phys APIC ID. |
| 286 | * May as well be the first. |
| 287 | */ |
Mike Travis | bcda016 | 2008-12-16 17:33:59 -0800 | [diff] [blame] | 288 | cpu = cpumask_first(cpumask); |
Mike Travis | 1bd9d6b | 2008-07-18 18:11:30 -0700 | [diff] [blame] | 289 | if ((unsigned)cpu < nr_cpu_ids) |
Mike Travis | 71fff5e | 2007-10-19 20:35:03 +0200 | [diff] [blame] | 290 | return per_cpu(x86_cpu_to_apicid, cpu); |
Andi Kleen | f8d3119 | 2005-07-28 21:15:42 -0700 | [diff] [blame] | 291 | else |
| 292 | return BAD_APICID; |
| 293 | } |
| 294 | |
Mike Travis | 6eeb7c5 | 2008-12-16 17:33:55 -0800 | [diff] [blame] | 295 | static unsigned int |
| 296 | physflat_cpu_mask_to_apicid_and(const struct cpumask *cpumask, |
| 297 | const struct cpumask *andmask) |
Mike Travis | 95d313c | 2008-12-16 17:33:54 -0800 | [diff] [blame] | 298 | { |
| 299 | int cpu; |
| 300 | |
| 301 | /* |
| 302 | * We're using fixed IRQ delivery, can only return one phys APIC ID. |
| 303 | * May as well be the first. |
| 304 | */ |
Ingo Molnar | debccb3 | 2009-01-28 15:20:18 +0100 | [diff] [blame] | 305 | for_each_cpu_and(cpu, cpumask, andmask) { |
Mike Travis | a775a38 | 2008-12-17 15:21:39 -0800 | [diff] [blame] | 306 | if (cpumask_test_cpu(cpu, cpu_online_mask)) |
| 307 | break; |
Ingo Molnar | debccb3 | 2009-01-28 15:20:18 +0100 | [diff] [blame] | 308 | } |
Mike Travis | 6eeb7c5 | 2008-12-16 17:33:55 -0800 | [diff] [blame] | 309 | if (cpu < nr_cpu_ids) |
| 310 | return per_cpu(x86_cpu_to_apicid, cpu); |
Ingo Molnar | debccb3 | 2009-01-28 15:20:18 +0100 | [diff] [blame] | 311 | |
Mike Travis | 95d313c | 2008-12-16 17:33:54 -0800 | [diff] [blame] | 312 | return BAD_APICID; |
| 313 | } |
| 314 | |
Ingo Molnar | be163a1 | 2009-02-17 16:28:46 +0100 | [diff] [blame] | 315 | struct apic apic_physflat = { |
Ingo Molnar | 4c3e51e | 2009-01-28 02:37:01 +0100 | [diff] [blame] | 316 | |
| 317 | .name = "physical flat", |
| 318 | .probe = NULL, |
| 319 | .acpi_madt_oem_check = physflat_acpi_madt_oem_check, |
| 320 | .apic_id_registered = flat_apic_id_registered, |
| 321 | |
Ingo Molnar | f8987a1 | 2009-01-28 04:02:31 +0100 | [diff] [blame] | 322 | .irq_delivery_mode = dest_Fixed, |
Ingo Molnar | 0b06e73 | 2009-01-28 05:13:04 +0100 | [diff] [blame] | 323 | .irq_dest_mode = 0, /* physical */ |
Ingo Molnar | 4c3e51e | 2009-01-28 02:37:01 +0100 | [diff] [blame] | 324 | |
| 325 | .target_cpus = physflat_target_cpus, |
Ingo Molnar | 08125d3 | 2009-01-28 05:08:44 +0100 | [diff] [blame] | 326 | .disable_esr = 0, |
Ingo Molnar | bdb1a9b | 2009-01-28 05:29:25 +0100 | [diff] [blame] | 327 | .dest_logical = 0, |
Ingo Molnar | 4c3e51e | 2009-01-28 02:37:01 +0100 | [diff] [blame] | 328 | .check_apicid_used = NULL, |
| 329 | .check_apicid_present = NULL, |
| 330 | |
Ingo Molnar | 4c3e51e | 2009-01-28 02:37:01 +0100 | [diff] [blame] | 331 | .vector_allocation_domain = physflat_vector_allocation_domain, |
| 332 | /* not needed, but shouldn't hurt: */ |
| 333 | .init_apic_ldr = flat_init_apic_ldr, |
| 334 | |
| 335 | .ioapic_phys_id_map = NULL, |
| 336 | .setup_apic_routing = NULL, |
| 337 | .multi_timer_check = NULL, |
| 338 | .apicid_to_node = NULL, |
| 339 | .cpu_to_logical_apicid = NULL, |
Ingo Molnar | a21769a4 | 2009-01-28 06:50:47 +0100 | [diff] [blame] | 340 | .cpu_present_to_apicid = default_cpu_present_to_apicid, |
Ingo Molnar | 4c3e51e | 2009-01-28 02:37:01 +0100 | [diff] [blame] | 341 | .apicid_to_cpu_present = NULL, |
| 342 | .setup_portio_remap = NULL, |
Ingo Molnar | a27a621 | 2009-01-28 12:43:18 +0100 | [diff] [blame] | 343 | .check_phys_apicid_present = default_check_phys_apicid_present, |
Ingo Molnar | 4c3e51e | 2009-01-28 02:37:01 +0100 | [diff] [blame] | 344 | .enable_apic_mode = NULL, |
Ingo Molnar | d4c9a9f | 2009-01-28 13:31:22 +0100 | [diff] [blame] | 345 | .phys_pkg_id = flat_phys_pkg_id, |
Ingo Molnar | 4c3e51e | 2009-01-28 02:37:01 +0100 | [diff] [blame] | 346 | .mps_oem_check = NULL, |
| 347 | |
Ingo Molnar | ca6c8ed | 2009-01-28 14:08:38 +0100 | [diff] [blame] | 348 | .get_apic_id = flat_get_apic_id, |
Ingo Molnar | 4c3e51e | 2009-01-28 02:37:01 +0100 | [diff] [blame] | 349 | .set_apic_id = set_apic_id, |
Ingo Molnar | 5b81272 | 2009-01-28 14:59:17 +0100 | [diff] [blame] | 350 | .apic_id_mask = 0xFFu << 24, |
Ingo Molnar | 4c3e51e | 2009-01-28 02:37:01 +0100 | [diff] [blame] | 351 | |
| 352 | .cpu_mask_to_apicid = physflat_cpu_mask_to_apicid, |
| 353 | .cpu_mask_to_apicid_and = physflat_cpu_mask_to_apicid_and, |
| 354 | |
| 355 | .send_IPI_mask = physflat_send_IPI_mask, |
| 356 | .send_IPI_mask_allbutself = physflat_send_IPI_mask_allbutself, |
| 357 | .send_IPI_allbutself = physflat_send_IPI_allbutself, |
| 358 | .send_IPI_all = physflat_send_IPI_all, |
| 359 | .send_IPI_self = apic_send_IPI_self, |
| 360 | |
Ingo Molnar | abfa584 | 2009-01-28 16:15:16 +0100 | [diff] [blame] | 361 | .trampoline_phys_low = DEFAULT_TRAMPOLINE_PHYS_LOW, |
| 362 | .trampoline_phys_high = DEFAULT_TRAMPOLINE_PHYS_HIGH, |
Ingo Molnar | 4c3e51e | 2009-01-28 02:37:01 +0100 | [diff] [blame] | 363 | .wait_for_init_deassert = NULL, |
| 364 | .smp_callin_clear_local_apic = NULL, |
Yinghai Lu | 08d63b1 | 2009-04-08 08:00:01 -0700 | [diff] [blame] | 365 | .inquire_remote_apic = default_inquire_remote_apic, |
Yinghai Lu | c1eeb2d | 2009-02-16 23:02:14 -0800 | [diff] [blame] | 366 | |
| 367 | .read = native_apic_mem_read, |
| 368 | .write = native_apic_mem_write, |
| 369 | .icr_read = native_apic_icr_read, |
| 370 | .icr_write = native_apic_icr_write, |
| 371 | .wait_icr_idle = native_apic_wait_icr_idle, |
| 372 | .safe_wait_icr_idle = native_safe_apic_wait_icr_idle, |
Andi Kleen | f8d3119 | 2005-07-28 21:15:42 -0700 | [diff] [blame] | 373 | }; |