The branch main has been updated by kib:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=ea4e4449b85593025c2eb31bb642732971d96225

commit ea4e4449b85593025c2eb31bb642732971d96225
Author:     Konstantin Belousov <[email protected]>
AuthorDate: 2024-10-12 22:52:44 +0000
Commit:     Konstantin Belousov <[email protected]>
CommitDate: 2024-10-17 14:31:50 +0000

    apic: add ioapic_get_dev() method
    
    which returns apic device_t by apic_id, if there exists the pci representer
    
    Sponsored by:   Advanced Micro Devices (AMD)
    Sponsored by:   The FreeBSD Foundation
    MFC after:      1 week
---
 sys/x86/include/apicvar.h |  1 +
 sys/x86/x86/io_apic.c     | 16 ++++++++++++++++
 2 files changed, 17 insertions(+)

diff --git a/sys/x86/include/apicvar.h b/sys/x86/include/apicvar.h
index ac6a82659e34..61c726f150df 100644
--- a/sys/x86/include/apicvar.h
+++ b/sys/x86/include/apicvar.h
@@ -258,6 +258,7 @@ void        lapic_handle_intr(int vector, struct trapframe 
*frame);
 void   lapic_handle_timer(struct trapframe *frame);
 
 int    ioapic_get_rid(u_int apic_id, uint16_t *ridp);
+device_t ioapic_get_dev(u_int apic_id);
 
 extern int x2apic_mode;
 extern int lapic_eoi_suppression;
diff --git a/sys/x86/x86/io_apic.c b/sys/x86/x86/io_apic.c
index 4337d1adc8a9..525547f9482a 100644
--- a/sys/x86/x86/io_apic.c
+++ b/sys/x86/x86/io_apic.c
@@ -1081,6 +1081,22 @@ ioapic_get_rid(u_int apic_id, uint16_t *ridp)
        return (0);
 }
 
+device_t
+ioapic_get_dev(u_int apic_id)
+{
+       struct ioapic *io;
+
+       mtx_lock_spin(&icu_lock);
+       STAILQ_FOREACH(io, &ioapic_list, io_next) {
+               if (io->io_hw_apic_id == apic_id)
+                       break;
+       }
+       mtx_unlock_spin(&icu_lock);
+       if (io != NULL)
+               return (io->pci_dev);
+       return (NULL);
+}
+
 /*
  * A new-bus driver to consume the memory resources associated with
  * the APICs in the system.  On some systems ACPI or PnPBIOS system

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