2 * Copyright (c) 1989, 1990 William F. Jolitz.
3 * Copyright (c) 1990 The Regents of the University of California.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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30 * from: vector.s, 386BSD 0.1 unknown origin
35 * Interrupt entry points for external interrupts triggered by I/O APICs
36 * as well as IPI handlers.
41 #include <machine/asmacros.h>
42 #include <x86/apicreg.h>
47 * I/O Interrupt Entry Point. Rather than having one entry point for
48 * each interrupt source, we use one entry point for each 32-bit word
49 * in the ISR. The handler determines the highest bit set in the ISR,
50 * translates that into a vector, and passes the vector to the
51 * lapic_handle_intr() function.
53 #define ISR_VEC(index, vec_name) \
60 FAKE_MCOUNT(TF_EIP(%esp)) ; \
61 movl lapic, %edx ; /* pointer to local APIC */ \
62 movl LA_ISR + 16 * (index)(%edx), %eax ; /* load ISR */ \
63 bsrl %eax, %eax ; /* index of highest set bit in ISR */ \
65 addl $(32 * index),%eax ; \
67 pushl %eax ; /* pass the IRQ */ \
68 call lapic_handle_intr ; \
69 addl $8, %esp ; /* discard parameter */ \
75 * Handle "spurious INTerrupts".
77 * This is different than the "spurious INTerrupt" generated by an
78 * 8259 PIC for missing INTs. See the APIC documentation for details.
79 * This routine should NOT do an 'EOI' cycle.
85 /* No EOI cycle used here */
98 * Local APIC periodic timer handler.
106 FAKE_MCOUNT(TF_EIP(%esp))
108 call lapic_handle_timer
114 * Local APIC CMCI handler.
122 FAKE_MCOUNT(TF_EIP(%esp))
123 call lapic_handle_cmc
128 * Local APIC error interrupt handler.
136 FAKE_MCOUNT(TF_EIP(%esp))
137 call lapic_handle_error
143 * Xen event channel upcall interrupt handler.
144 * Only used when the hypervisor supports direct vector callbacks.
148 IDTVEC(xen_intr_upcall)
152 FAKE_MCOUNT(TF_EIP(%esp))
154 call xen_intr_handle_upcall
162 * Global address space TLB shootdown.
168 movl $0, LA_EOI(%eax) /* End Of Interrupt to APIC */
183 * Single page TLB shootdown
197 * Page range TLB shootdown.
220 call invlcache_handler
225 * Handler for IPIs sent via the per-cpu IPI bitmap.
230 IDTVEC(ipi_intr_bitmap_handler)
236 movl $0, LA_EOI(%edx) /* End Of Interrupt to APIC */
238 FAKE_MCOUNT(TF_EIP(%esp))
240 call ipi_bitmap_handler
245 * Executed by a CPU when it receives an IPI_STOP from another CPU.
255 movl $0, LA_EOI(%eax) /* End Of Interrupt to APIC */
263 * Executed by a CPU when it receives an IPI_SUSPEND from another CPU.
274 movl $0, LA_EOI(%eax) /* End Of Interrupt to APIC */
276 call cpususpend_handler
283 * Executed by a CPU when it receives a RENDEZVOUS IPI from another CPU.
285 * - Calls the generic rendezvous action function.
295 movl PCPU(CPUID), %eax
296 movl ipi_rendezvous_counts(,%eax,4), %eax
299 call smp_rendezvous_action
302 movl $0, LA_EOI(%eax) /* End Of Interrupt to APIC */
307 * Clean up when we lose out on the lazy context switch optimization.
308 * ie: when we are about to release a PTD but a cpu is still borrowing it.
316 call pmap_lazyfix_action
319 movl $0, LA_EOI(%eax) /* End Of Interrupt to APIC */