Searched hist:"20351 faf18efbea7f57e7e613a3f40643ed61c2e" (Results 1 – 1 of 1) sorted by relevance
| /freebsd/sys/i386/i386/ |
| H A D | vm_machdep.c | diff 20351faf18efbea7f57e7e613a3f40643ed61c2e Sun Oct 17 00:32:50 CEST 2004 Alan Cox <alc@FreeBSD.org> When sf_buf_alloc() replaces a virtual-to-physical mapping, it needn't
invalidate the TLB(s) if the old mapping wasn't used by the CPU. With
network interfaces that implement checksum off-loading, the old mapping is
almost never used by the CPU, only by the device driver for setting up the
DMA operation.
Reviewed by: tegge@
diff 20351faf18efbea7f57e7e613a3f40643ed61c2e Sun Oct 17 00:32:50 CEST 2004 Alan Cox <alc@FreeBSD.org> When sf_buf_alloc() replaces a virtual-to-physical mapping, it needn't
invalidate the TLB(s) if the old mapping wasn't used by the CPU. With
network interfaces that implement checksum off-loading, the old mapping is
almost never used by the CPU, only by the device driver for setting up the
DMA operation.
Reviewed by: tegge@
|