irq_work.c 701 B

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  1. // SPDX-License-Identifier: GPL-2.0
  2. /*
  3. * x86 specific code for irq_work
  4. *
  5. * Copyright (C) 2010 Red Hat, Inc., Peter Zijlstra
  6. */
  7. #include <linux/kernel.h>
  8. #include <linux/irq_work.h>
  9. #include <linux/hardirq.h>
  10. #include <asm/apic.h>
  11. #include <asm/idtentry.h>
  12. #include <asm/trace/irq_vectors.h>
  13. #include <linux/interrupt.h>
  14. #ifdef CONFIG_X86_LOCAL_APIC
  15. DEFINE_IDTENTRY_SYSVEC(sysvec_irq_work)
  16. {
  17. ack_APIC_irq();
  18. trace_irq_work_entry(IRQ_WORK_VECTOR);
  19. inc_irq_stat(apic_irq_work_irqs);
  20. irq_work_run();
  21. trace_irq_work_exit(IRQ_WORK_VECTOR);
  22. }
  23. void arch_irq_work_raise(void)
  24. {
  25. if (!arch_irq_work_has_interrupt())
  26. return;
  27. apic->send_IPI_self(IRQ_WORK_VECTOR);
  28. apic_wait_icr_idle();
  29. }
  30. #endif