diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/x86/kernel/apic/apic_noop.c')
-rw-r--r-- | ANDROID_3.4.5/arch/x86/kernel/apic/apic_noop.c | 192 |
1 files changed, 0 insertions, 192 deletions
diff --git a/ANDROID_3.4.5/arch/x86/kernel/apic/apic_noop.c b/ANDROID_3.4.5/arch/x86/kernel/apic/apic_noop.c deleted file mode 100644 index 634ae6cd..00000000 --- a/ANDROID_3.4.5/arch/x86/kernel/apic/apic_noop.c +++ /dev/null @@ -1,192 +0,0 @@ -/* - * NOOP APIC driver. - * - * Does almost nothing and should be substituted by a real apic driver via - * probe routine. - * - * Though in case if apic is disabled (for some reason) we try - * to not uglify the caller's code and allow to call (some) apic routines - * like self-ipi, etc... - */ - -#include <linux/threads.h> -#include <linux/cpumask.h> -#include <linux/module.h> -#include <linux/string.h> -#include <linux/kernel.h> -#include <linux/ctype.h> -#include <linux/init.h> -#include <linux/errno.h> -#include <asm/fixmap.h> -#include <asm/mpspec.h> -#include <asm/apicdef.h> -#include <asm/apic.h> -#include <asm/setup.h> - -#include <linux/smp.h> -#include <asm/ipi.h> - -#include <linux/interrupt.h> -#include <asm/acpi.h> -#include <asm/e820.h> - -static void noop_init_apic_ldr(void) { } -static void noop_send_IPI_mask(const struct cpumask *cpumask, int vector) { } -static void noop_send_IPI_mask_allbutself(const struct cpumask *cpumask, int vector) { } -static void noop_send_IPI_allbutself(int vector) { } -static void noop_send_IPI_all(int vector) { } -static void noop_send_IPI_self(int vector) { } -static void noop_apic_wait_icr_idle(void) { } -static void noop_apic_icr_write(u32 low, u32 id) { } - -static int noop_wakeup_secondary_cpu(int apicid, unsigned long start_eip) -{ - return -1; -} - -static u32 noop_safe_apic_wait_icr_idle(void) -{ - return 0; -} - -static u64 noop_apic_icr_read(void) -{ - return 0; -} - -static int noop_phys_pkg_id(int cpuid_apic, int index_msb) -{ - return 0; -} - -static unsigned int noop_get_apic_id(unsigned long x) -{ - return 0; -} - -static int noop_probe(void) -{ - /* - * NOOP apic should not ever be - * enabled via probe routine - */ - return 0; -} - -static int noop_apic_id_registered(void) -{ - /* - * if we would be really "pedantic" - * we should pass read_apic_id() here - * but since NOOP suppose APIC ID = 0 - * lets save a few cycles - */ - return physid_isset(0, phys_cpu_present_map); -} - -static const struct cpumask *noop_target_cpus(void) -{ - /* only BSP here */ - return cpumask_of(0); -} - -static unsigned long noop_check_apicid_used(physid_mask_t *map, int apicid) -{ - return physid_isset(apicid, *map); -} - -static unsigned long noop_check_apicid_present(int bit) -{ - return physid_isset(bit, phys_cpu_present_map); -} - -static void noop_vector_allocation_domain(int cpu, struct cpumask *retmask) -{ - if (cpu != 0) - pr_warning("APIC: Vector allocated for non-BSP cpu\n"); - cpumask_clear(retmask); - cpumask_set_cpu(cpu, retmask); -} - -static u32 noop_apic_read(u32 reg) -{ - WARN_ON_ONCE((cpu_has_apic && !disable_apic)); - return 0; -} - -static void noop_apic_write(u32 reg, u32 v) -{ - WARN_ON_ONCE(cpu_has_apic && !disable_apic); -} - -struct apic apic_noop = { - .name = "noop", - .probe = noop_probe, - .acpi_madt_oem_check = NULL, - - .apic_id_valid = default_apic_id_valid, - .apic_id_registered = noop_apic_id_registered, - - .irq_delivery_mode = dest_LowestPrio, - /* logical delivery broadcast to all CPUs: */ - .irq_dest_mode = 1, - - .target_cpus = noop_target_cpus, - .disable_esr = 0, - .dest_logical = APIC_DEST_LOGICAL, - .check_apicid_used = noop_check_apicid_used, - .check_apicid_present = noop_check_apicid_present, - - .vector_allocation_domain = noop_vector_allocation_domain, - .init_apic_ldr = noop_init_apic_ldr, - - .ioapic_phys_id_map = default_ioapic_phys_id_map, - .setup_apic_routing = NULL, - .multi_timer_check = NULL, - - .cpu_present_to_apicid = default_cpu_present_to_apicid, - .apicid_to_cpu_present = physid_set_mask_of_physid, - - .setup_portio_remap = NULL, - .check_phys_apicid_present = default_check_phys_apicid_present, - .enable_apic_mode = NULL, - - .phys_pkg_id = noop_phys_pkg_id, - - .mps_oem_check = NULL, - - .get_apic_id = noop_get_apic_id, - .set_apic_id = NULL, - .apic_id_mask = 0x0F << 24, - - .cpu_mask_to_apicid = default_cpu_mask_to_apicid, - .cpu_mask_to_apicid_and = default_cpu_mask_to_apicid_and, - - .send_IPI_mask = noop_send_IPI_mask, - .send_IPI_mask_allbutself = noop_send_IPI_mask_allbutself, - .send_IPI_allbutself = noop_send_IPI_allbutself, - .send_IPI_all = noop_send_IPI_all, - .send_IPI_self = noop_send_IPI_self, - - .wakeup_secondary_cpu = noop_wakeup_secondary_cpu, - - /* should be safe */ - .trampoline_phys_low = DEFAULT_TRAMPOLINE_PHYS_LOW, - .trampoline_phys_high = DEFAULT_TRAMPOLINE_PHYS_HIGH, - - .wait_for_init_deassert = NULL, - - .smp_callin_clear_local_apic = NULL, - .inquire_remote_apic = NULL, - - .read = noop_apic_read, - .write = noop_apic_write, - .icr_read = noop_apic_icr_read, - .icr_write = noop_apic_icr_write, - .wait_icr_idle = noop_apic_wait_icr_idle, - .safe_wait_icr_idle = noop_safe_apic_wait_icr_idle, - -#ifdef CONFIG_X86_32 - .x86_32_early_logical_apicid = noop_x86_32_early_logical_apicid, -#endif -}; 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