freebsd-dev/sys/sparc64
Jake Burkholder 0019917542 Fix a bug in the data access error recorvery. Before re-enabling the data
cache after a data access error we must discard all cache lines.  When
disabled existing cache lines are not invalidated by stores to memory, so
we risk reading stale data that was cached before the data access error if
we don't flush them.  This is especially fatal when the memory involved
is the active part of the kernel or user stack.  For good measure we also
flush the instruction cache.

This fixes random crashes when the X server probes the PCI bus through
/dev/pci.
2003-11-11 06:41:54 +00:00
..
central Use M_WAITOK. 2003-02-19 17:25:58 +00:00
compile Obrien created this directory, but I didn't cvs add cvsignore 2001-07-01 23:37:03 +00:00
conf Take the support for the 8139C+/8169/8169S/8110S chips out of the 2003-09-08 02:11:25 +00:00
creator Add a driver for creator upa frame buffers found in many sparc64 machines. 2003-08-24 01:15:40 +00:00
ebus s=include <ofw/=include <dev/ofw/= to reflect removal of -I$S/dev 2003-08-23 00:11:16 +00:00
fhc Fix definite panic when releasing interrupt resources. 2003-02-19 19:40:40 +00:00
include Fix a bug in the data access error recorvery. Before re-enabling the data 2003-11-11 06:41:54 +00:00
isa s=include <ofw/=include <dev/ofw/= to reflect removal of -I$S/dev 2003-08-23 00:11:16 +00:00
pci - Clear the CE AFSR bits which indicate the error condition when handling 2003-09-04 15:25:10 +00:00
sbus s=include <ofw/=include <dev/ofw/= to reflect removal of -I$S/dev 2003-08-23 00:11:16 +00:00
sparc64 Fix a bug in the data access error recorvery. Before re-enabling the data 2003-11-11 06:41:54 +00:00