Haren Myneni 6068e1a442 powerpc/vas: Report proper error code for address translation failure ... P9 DD2 NX workbook (Table 4-36) says DMA controller uses CC=5 internally for translation fault handling. NX reserves CC=250 for OS to notify user space when NX encounters address translation failure on the request buffer. Not an issue in earlier releases as NX does not get faults on kernel addresses. This patch defines CSB_CC_FAULT_ADDRESS(250) and updates CSB.CC with this proper error code for user space. Fixes: c96c4436ab ("powerpc/vas: Update CSB and notify process for fault CRBs") Signed-off-by: Haren Myneni <haren@linux.ibm.com> [mpe: Added Fixes tag and fix typo in comment] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/019fd53e7538c6f8f332d175df74b1815ef5aa8c.camel@linux.ibm.com		2020-07-15 23:09:55 +10:00
..
boot
configs
crypto
include	powerpc/vas: Report proper error code for address translation failure	2020-07-15 23:09:55 +10:00
kernel	powerpc/pseries/svm: Fix incorrect check for shared_lppaca_size	2020-07-14 21:57:26 +10:00
kexec
kvm	powerpc/kvm/book3s64: Fix kernel crash with nested kvm & DEBUG_VIRTUAL	2020-06-22 21:55:45 +10:00
lib
math-emu
mm	powerpc/book3s64/pkeys: Fix pkey_access_permitted() for execute disable pkey	2020-07-13 16:07:17 +10:00
net
oprofile
perf
platforms	powerpc/vas: Report proper error code for address translation failure	2020-07-15 23:09:55 +10:00
purgatory
sysdev
tools
xmon
Kbuild
Kconfig
Kconfig.debug
Makefile
Makefile.postlink