linux/drivers/misc/cxl
Michael Neuling 2bc79ffcbb cxl: Poll for outstanding IRQs when detaching a context
When detaching contexts, we may still have interrupts in the system
which are yet to be delivered to any CPU and be acked in the PSL.
This can result in a subsequent unrelated process getting an spurious
IRQ or an interrupt for a non-existent context.

This polls the PSL to ensure that the PSL is clear of IRQs for the
detached context, before removing the context from the idr.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Tested-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Tested-by: Vaibhav Jain <vaibhav@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-04-27 12:04:48 +10:00
..
api.c cxl: Remove cxl_get_phys_dev() kernel API 2016-03-09 23:40:02 +11:00
base.c cxl: Parse device tree and create cxl device(s) at boot 2016-03-09 23:39:59 +11:00
context.c cxl: Poll for outstanding IRQs when detaching a context 2016-04-27 12:04:48 +10:00
cxl.h cxl: Poll for outstanding IRQs when detaching a context 2016-04-27 12:04:48 +10:00
debugfs.c cxl: Isolate a few bare-metal-specific calls 2016-03-09 13:05:47 +11:00
fault.c cxl: Isolate a few bare-metal-specific calls 2016-03-09 13:05:47 +11:00
file.c cxl: Adapter failure handling 2016-03-09 23:40:00 +11:00
flash.c cxl: Support to flash a new image on the adapter from a guest 2016-03-09 23:39:56 +11:00
guest.c cxl: Adapter failure handling 2016-03-09 23:40:00 +11:00
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: Keep IRQ mappings on context teardown 2016-04-27 12:04:31 +10:00
Kconfig cxl: Add CONFIG_CXL_EEH symbol 2015-08-17 13:56:29 +10:00
main.c cxl: Adapter failure handling 2016-03-09 23:40:00 +11:00
Makefile cxl: Support to flash a new image on the adapter from a guest 2016-03-09 23:39:56 +11:00
native.c cxl: Poll for outstanding IRQs when detaching a context 2016-04-27 12:04:48 +10:00
of.c cxl: Add guest-specific code 2016-03-09 23:36:52 +11:00
pci.c powerpc updates for 4.6 2016-03-19 15:38:41 -07:00
sysfs.c powerpc updates for 4.6 2016-03-19 15:38:41 -07:00
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: Ignore probes for virtual afu pci devices 2016-03-09 23:40:03 +11:00