diff options
| author | jhb <jhb@FreeBSD.org> | 2001-12-20 23:48:31 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2001-12-20 23:48:31 +0000 |
| commit | 2463f40fc340e69b97e1ba3f1a7db47384b50a83 (patch) | |
| tree | dec76d77f99795635c90df0631ffc2beb333b91b /sys/amd64/include/apicreg.h | |
| parent | 7a0109b5c0a87d4cff83c1923789cf9c5b38126a (diff) | |
| download | FreeBSD-src-2463f40fc340e69b97e1ba3f1a7db47384b50a83.zip FreeBSD-src-2463f40fc340e69b97e1ba3f1a7db47384b50a83.tar.gz | |
Introduce a standard name for the lock protecting an interrupt controller
and it's associated state variables: icu_lock with the name "icu". This
renames the imen_mtx for x86 SMP, but also uses the lock to protect
access to the 8259 PIC on x86 UP. This also adds an appropriate lock to
the various Alpha chipsets which fixes problems with Alpha SMP machines
dropping interrupts with an SMP kernel.
Diffstat (limited to 'sys/amd64/include/apicreg.h')
| -rw-r--r-- | sys/amd64/include/apicreg.h | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/sys/amd64/include/apicreg.h b/sys/amd64/include/apicreg.h index 6345ce7..70b8011 100644 --- a/sys/amd64/include/apicreg.h +++ b/sys/amd64/include/apicreg.h @@ -458,28 +458,4 @@ typedef struct IOAPIC ioapic_t; #define IOART_INTVEC 0x000000ff /* R/W: INTerrupt vector field */ -#ifdef LOCORE - -#ifdef SMP - -/* - * Protects the IO APIC and apic_imen as a critical region. - */ -#define IMASK_LOCK MTX_LOCK_SPIN(imen_mtx, 0) -#define IMASK_UNLOCK MTX_UNLOCK_SPIN(imen_mtx) - -#else /* SMP */ - -#define IMASK_LOCK /* NOP */ -#define IMASK_UNLOCK /* NOP */ - -#endif /* SMP */ - -#else /* LOCORE */ - -/* global data in mp_machdep.c */ -extern struct mtx imen_mtx; - -#endif /* LOCORE */ - #endif /* _MACHINE_APIC_H_ */ |
