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/*- * Copyright (c) 1989, 1990 William F. Jolitz. * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * from: vector.s, 386BSD 0.1 unknown origin * $FreeBSD: release/9.1.0/sys/amd64/amd64/apic_vector.S 232079 2012-02-23 21:54:04Z jkim $ */ /* * Interrupt entry points for external interrupts triggered by I/O APICs * as well as IPI handlers. */ #include "opt_smp.h" #include <machine/asmacros.h> #include <x86/apicreg.h> #include "assym.s" /* * I/O Interrupt Entry Point. Rather than having one entry point for * each interrupt source, we use one entry point for each 32-bit word * in the ISR. The handler determines the highest bit set in the ISR, * translates that into a vector, and passes the vector to the * lapic_handle_intr() function. */ #define ISR_VEC(index, vec_name) \ .text ; \ SUPERALIGN_TEXT ; \ IDTVEC(vec_name) ; \ PUSH_FRAME ; \ FAKE_MCOUNT(TF_RIP(%rsp)) ; \ movq lapic, %rdx ; /* pointer to local APIC */ \ movl LA_ISR + 16 * (index)(%rdx), %eax ; /* load ISR */ \ bsrl %eax, %eax ; /* index of highest set bit in ISR */ \ jz 1f ; \ addl $(32 * index),%eax ; \ movq %rsp, %rsi ; \ movl %eax, %edi ; /* pass the IRQ */ \ call lapic_handle_intr ; \ 1: ; \ MEXITCOUNT ; \ jmp doreti /* * Handle "spurious INTerrupts". * Notes: * This is different than the "spurious INTerrupt" generated by an * 8259 PIC for missing INTs. See the APIC documentation for details. * This routine should NOT do an 'EOI' cycle. */ .text SUPERALIGN_TEXT IDTVEC(spuriousint) /* No EOI cycle used here */ jmp doreti_iret ISR_VEC(1, apic_isr1) ISR_VEC(2, apic_isr2) ISR_VEC(3, apic_isr3) ISR_VEC(4, apic_isr4) ISR_VEC(5, apic_isr5) ISR_VEC(6, apic_isr6) ISR_VEC(7, apic_isr7) /* * Local APIC periodic timer handler. */ .text SUPERALIGN_TEXT IDTVEC(timerint) PUSH_FRAME FAKE_MCOUNT(TF_RIP(%rsp)) movq %rsp, %rdi call lapic_handle_timer MEXITCOUNT jmp doreti /* * Local APIC CMCI handler. */ .text SUPERALIGN_TEXT IDTVEC(cmcint) PUSH_FRAME FAKE_MCOUNT(TF_RIP(%rsp)) call lapic_handle_cmc MEXITCOUNT jmp doreti /* * Local APIC error interrupt handler. */ .text SUPERALIGN_TEXT IDTVEC(errorint) PUSH_FRAME FAKE_MCOUNT(TF_RIP(%rsp)) call lapic_handle_error MEXITCOUNT jmp doreti #ifdef SMP /* * Global address space TLB shootdown. */ .text SUPERALIGN_TEXT IDTVEC(invltlb) #if defined(COUNT_XINVLTLB_HITS) || defined(COUNT_IPIS) PUSH_FRAME movl PCPU(CPUID), %eax #ifdef COUNT_XINVLTLB_HITS incl xhits_gbl(,%rax,4) #endif #ifdef COUNT_IPIS movq ipi_invltlb_counts(,%rax,8),%rax incq (%rax) #endif POP_FRAME #endif pushq %rax movq %cr3, %rax /* invalidate the TLB */ movq %rax, %cr3 movq lapic, %rax movl $0, LA_EOI(%rax) /* End Of Interrupt to APIC */ lock incl smp_tlb_wait popq %rax jmp doreti_iret /* * Single page TLB shootdown */ .text SUPERALIGN_TEXT IDTVEC(invlpg) #if defined(COUNT_XINVLTLB_HITS) || defined(COUNT_IPIS) PUSH_FRAME movl PCPU(CPUID), %eax #ifdef COUNT_XINVLTLB_HITS incl xhits_pg(,%rax,4) #endif #ifdef COUNT_IPIS movq ipi_invlpg_counts(,%rax,8),%rax incq (%rax) #endif POP_FRAME #endif pushq %rax movq smp_tlb_addr1, %rax invlpg (%rax) /* invalidate single page */ movq lapic, %rax movl $0, LA_EOI(%rax) /* End Of Interrupt to APIC */ lock incl smp_tlb_wait popq %rax jmp doreti_iret /* * Page range TLB shootdown. */ .text SUPERALIGN_TEXT IDTVEC(invlrng) #if defined(COUNT_XINVLTLB_HITS) || defined(COUNT_IPIS) PUSH_FRAME movl PCPU(CPUID), %eax #ifdef COUNT_XINVLTLB_HITS incl xhits_rng(,%rax,4) #endif #ifdef COUNT_IPIS movq ipi_invlrng_counts(,%rax,8),%rax incq (%rax) #endif POP_FRAME #endif pushq %rax pushq %rdx movq smp_tlb_addr1, %rdx movq smp_tlb_addr2, %rax 1: invlpg (%rdx) /* invalidate single page */ addq $PAGE_SIZE, %rdx cmpq %rax, %rdx jb 1b movq lapic, %rax movl $0, LA_EOI(%rax) /* End Of Interrupt to APIC */ lock incl smp_tlb_wait popq %rdx popq %rax jmp doreti_iret /* * Invalidate cache. */ .text SUPERALIGN_TEXT IDTVEC(invlcache) #ifdef COUNT_IPIS PUSH_FRAME movl PCPU(CPUID), %eax movq ipi_invlcache_counts(,%rax,8),%rax incq (%rax) POP_FRAME #endif pushq %rax wbinvd movq lapic, %rax movl $0, LA_EOI(%rax) /* End Of Interrupt to APIC */ lock incl smp_tlb_wait popq %rax jmp doreti_iret /* * Handler for IPIs sent via the per-cpu IPI bitmap. */ .text SUPERALIGN_TEXT IDTVEC(ipi_intr_bitmap_handler) PUSH_FRAME movq lapic, %rdx movl $0, LA_EOI(%rdx) /* End Of Interrupt to APIC */ FAKE_MCOUNT(TF_RIP(%rsp)) call ipi_bitmap_handler MEXITCOUNT jmp doreti /* * Executed by a CPU when it receives an IPI_STOP from another CPU. */ .text SUPERALIGN_TEXT IDTVEC(cpustop) PUSH_FRAME movq lapic, %rax movl $0, LA_EOI(%rax) /* End Of Interrupt to APIC */ call cpustop_handler jmp doreti /* * Executed by a CPU when it receives an IPI_SUSPEND from another CPU. */ .text SUPERALIGN_TEXT IDTVEC(cpususpend) PUSH_FRAME call cpususpend_handler movq lapic, %rax movl $0, LA_EOI(%rax) /* End Of Interrupt to APIC */ jmp doreti /* * Executed by a CPU when it receives a RENDEZVOUS IPI from another CPU. * * - Calls the generic rendezvous action function. */ .text SUPERALIGN_TEXT IDTVEC(rendezvous) PUSH_FRAME #ifdef COUNT_IPIS movl PCPU(CPUID), %eax movq ipi_rendezvous_counts(,%rax,8), %rax incq (%rax) #endif call smp_rendezvous_action movq lapic, %rax movl $0, LA_EOI(%rax) /* End Of Interrupt to APIC */ jmp doreti #endif /* SMP */