linux/drivers/misc/cxl
Frederic Barrat aaa2245ed8 cxl: Flush PSL cache before resetting the adapter
If the capi link is going down while the PSL owns a dirty cache line,
any access from the host for that data could lead to an Uncorrectable
Error.

So when resetting the capi adapter through sysfs, make sure the PSL
cache is flushed. It won't help if there are any active Process
Elements on the card, as the cache would likely get new dirty cache
lines immediately, but if resetting an idle adapter, it should avoid
any bad surprises from data left over from terminated Process Elements.

Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04 16:16:42 +11:00
..
api.c cxl: Add support for interrupts on the Mellanox CX4 2016-07-14 20:27:08 +10:00
base.c cxl: Add support for interrupts on the Mellanox CX4 2016-07-14 20:27:08 +10:00
context.c cxl: Fix NULL dereference in cxl_context_init() on PowerVM guests 2016-08-09 16:52:02 +10:00
cxl.h cxl: Flush PSL cache before resetting the adapter 2016-10-04 16:16:42 +11:00
debugfs.c cxl: Abstract the differences between the PSL and XSL 2016-06-16 23:08:54 +10:00
fault.c powerpc/mm: Replace _PAGE_USER with _PAGE_PRIVILEGED 2016-05-01 18:32:26 +10:00
file.c cxl: Add mechanism for delivering AFU driver specific events 2016-06-28 18:34:56 +10:00
flash.c cxl: static-ify variables to fix sparse warnings 2016-06-16 22:49:27 +10:00
guest.c cxl: fix potential NULL dereference in free_adapter() 2016-07-19 20:12:29 +10:00
hcalls.c cxl: Add tracepoints around the cxl hcall 2016-03-09 23:40:01 +11:00
hcalls.h cxl: Add guest-specific code 2016-03-09 23:36:52 +11:00
irq.c cxl: Refine slice error debug messages 2016-07-08 22:22:03 +10:00
Kconfig cxl: remove dead Kconfig options 2016-07-19 20:12:29 +10:00
main.c cxl: Add support for interrupts on the Mellanox CX4 2016-07-14 20:27:08 +10:00
Makefile cxl: Allow a default context to be associated with an external pci_dev 2016-07-14 20:26:52 +10:00
native.c cxl: Flush PSL cache before resetting the adapter 2016-10-04 16:16:42 +11:00
of.c cxl: Add guest-specific code 2016-03-09 23:36:52 +11:00
pci.c cxl: Flush PSL cache before resetting the adapter 2016-10-04 16:16:42 +11:00
phb.c cxl: Allow a default context to be associated with an external pci_dev 2016-07-14 20:26:52 +10:00
sysfs.c cxl: Allow initialization on timebase sync failures 2016-04-22 21:45:44 +10:00
trace.c cxl: Add tracepoints 2015-01-22 17:31:51 +11:00
trace.h cxl: Add tracepoints around the cxl hcall 2016-03-09 23:40:01 +11:00
vphb.c cxl: use pcibios_free_controller_deferred() when removing vPHBs 2016-08-22 11:09:33 +10:00