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| author | jhb <jhb@FreeBSD.org> | 2006-05-01 21:36:47 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2006-05-01 21:36:47 +0000 |
| commit | ca8d347695197fe6855a628e0325e9ab16820d5f (patch) | |
| tree | 3a0d26aaaeb23a38ebdd2566fd5bdbc8c7bde43f /sys/amd64/include | |
| parent | 4db7dec298d4cc5de09e6704e4b98919f21bacaf (diff) | |
| download | FreeBSD-src-ca8d347695197fe6855a628e0325e9ab16820d5f.zip FreeBSD-src-ca8d347695197fe6855a628e0325e9ab16820d5f.tar.gz | |
Add a new 'pmap_invalidate_cache()' to flush the CPU caches via the
wbinvd() instruction. This includes a new IPI so that all CPU caches on
all CPUs are flushed for the SMP case.
MFC after: 1 month
Diffstat (limited to 'sys/amd64/include')
| -rw-r--r-- | sys/amd64/include/apicvar.h | 5 | ||||
| -rw-r--r-- | sys/amd64/include/pmap.h | 1 | ||||
| -rw-r--r-- | sys/amd64/include/smp.h | 2 |
3 files changed, 6 insertions, 2 deletions
diff --git a/sys/amd64/include/apicvar.h b/sys/amd64/include/apicvar.h index c87dc7e..98cf3a3 100644 --- a/sys/amd64/include/apicvar.h +++ b/sys/amd64/include/apicvar.h @@ -118,8 +118,9 @@ #define IPI_INVLTLB (APIC_IPI_INTS + 1) /* TLB Shootdown IPIs */ #define IPI_INVLPG (APIC_IPI_INTS + 2) #define IPI_INVLRNG (APIC_IPI_INTS + 3) +#define IPI_INVLCACHE (APIC_IPI_INTS + 4) /* Vector to handle bitmap based IPIs */ -#define IPI_BITMAP_VECTOR (APIC_IPI_INTS + 5) +#define IPI_BITMAP_VECTOR (APIC_IPI_INTS + 6) /* IPIs handled by IPI_BITMAPED_VECTOR (XXX ups is there a better place?) */ #define IPI_AST 0 /* Generate software trap. */ @@ -127,7 +128,7 @@ #define IPI_BITMAP_LAST IPI_PREEMPT #define IPI_IS_BITMAPED(x) ((x) <= IPI_BITMAP_LAST) -#define IPI_STOP (APIC_IPI_INTS + 6) /* Stop CPU until restarted. */ +#define IPI_STOP (APIC_IPI_INTS + 7) /* Stop CPU until restarted. */ /* * The spurious interrupt can share the priority class with the IPIs since diff --git a/sys/amd64/include/pmap.h b/sys/amd64/include/pmap.h index 49e3139..0a774c7 100644 --- a/sys/amd64/include/pmap.h +++ b/sys/amd64/include/pmap.h @@ -309,6 +309,7 @@ void pmap_unmapdev(vm_offset_t, vm_size_t); void pmap_invalidate_page(pmap_t, vm_offset_t); void pmap_invalidate_range(pmap_t, vm_offset_t, vm_offset_t); void pmap_invalidate_all(pmap_t); +void pmap_invalidate_cache(void); #endif /* _KERNEL */ diff --git a/sys/amd64/include/smp.h b/sys/amd64/include/smp.h index 94a7022..5a2d3aa 100644 --- a/sys/amd64/include/smp.h +++ b/sys/amd64/include/smp.h @@ -40,6 +40,7 @@ inthand_t IDTVEC(invltlb), /* TLB shootdowns - global */ IDTVEC(invlpg), /* TLB shootdowns - 1 page */ IDTVEC(invlrng), /* TLB shootdowns - page range */ + IDTVEC(invlcache), /* Write back and invalidate cache */ IDTVEC(ipi_intr_bitmap_handler), /* Bitmap based IPIs */ IDTVEC(cpustop), /* CPU stops & waits to be restarted */ IDTVEC(rendezvous); /* handle CPU rendezvous */ @@ -56,6 +57,7 @@ void ipi_bitmap_handler(struct trapframe frame); u_int mp_bootaddress(u_int); int mp_grab_cpu_hlt(void); void mp_topology(void); +void smp_cache_flush(void); void smp_invlpg(vm_offset_t addr); void smp_masked_invlpg(u_int mask, vm_offset_t addr); void smp_invlpg_range(vm_offset_t startva, vm_offset_t endva); |
