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25642e1459
linux_dsm_epyc7002/arch/powerpc/platforms/powernv
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Alistair Popple 25642e1459 powerpc/opal-irqchip: Fix double endian conversion 
The OPAL event calls return a mask of events that are active in big
endian format. This is checked when unmasking the events in the
irqchip by comparison with a cached value. The cached value was stored
in big endian format but should've been converted to CPU endian
first.

This bug leads to OPAL event delivery being delayed or dropped on some
systems. Symptoms may include a non-functional console.

The bug is fixed by calling opal_handle_events(...) instead of
duplicating code in opal_event_unmask(...).

Fixes: 9f0fd0499d ("powerpc/powernv: Add a virtual irqchip for opal events")
Cc: stable@vger.kernel.org # v4.2+
Reported-by: Douglas L Lehr <dllehr@us.ibm.com>
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-12-08 16:53:31 +11:00
..
eeh-powernv.c powerpc/eeh: Fix recursive fenced PHB on Broadcom shiner adapter 2015-10-21 20:42:16 +11:00
idle.c powerpc/powernv: pnv_init_idle_states() should only run on powernv 2015-06-15 16:45:12 +10:00
Kconfig powerpc/powernv: Add opal-prd channel 2015-06-05 08:32:21 +10:00
Makefile powerpc/powernv: Add opal-prd channel 2015-06-05 08:32:21 +10:00
opal-async.c powerpc/powernv: Reorder OPAL subsystem initialisation 2015-05-22 15:14:37 +10:00
opal-dump.c powernv/opal-dump: Convert to irq domain 2015-05-22 15:14:38 +10:00
opal-elog.c powerpc/powernv: Fix opal-elog interrupt handler 2015-07-06 20:24:36 +10:00
opal-flash.c powerpc/powernv: Add interfaces for flash device access 2015-04-11 20:49:21 +10:00
opal-hmi.c powerpc/powernv: Invoke opal_cec_reboot2() on unrecoverable HMI. 2015-08-06 15:10:19 +10:00
opal-irqchip.c powerpc/opal-irqchip: Fix double endian conversion 2015-12-08 16:53:31 +11:00
opal-lpc.c powerpc/powernv: Properly fix LPC debugfs endianness 2014-10-31 17:09:04 +11:00
opal-memory-errors.c powerpc/powernv: Reorder OPAL subsystem initialisation 2015-05-22 15:14:37 +10:00
opal-msglog.c powerpc/powernv: Fix reading of OPAL msglog 2014-06-11 17:03:36 +10:00
opal-nvram.c powerpc/powernv: Add pstore support on powernv 2015-03-23 14:06:10 +11:00
opal-power.c powerpc/powernv: Add poweroff (EPOW, DPO) events support for PowerNV platform 2015-07-16 13:34:36 +10:00
opal-prd.c powerpc/powernv: Fix vma page prot flags in opal-prd driver 2015-07-06 12:06:42 +10:00
opal-rtc.c rtc/tpo: Driver to support rtc and wakeup on PowerNV platform 2014-11-17 18:04:01 +11:00
opal-sensor.c powerpc/powernv: Reorder OPAL subsystem initialisation 2015-05-22 15:14:37 +10:00
opal-sysparam.c powerpc/powernv: convert OPAL codes returned by sysparam calls 2015-06-04 22:27:56 +10:00
opal-tracepoints.c powerpc: Replace __get_cpu_var uses 2014-11-03 12:12:32 +11:00
opal-wrappers.S powerpc/powernv: Add OPAL interfaces for accessing and modifying system LED states 2015-08-20 18:19:07 +10:00
opal-xscom.c powerpc/powernv: Switch powernv drivers to use machine_xxx_initcall() 2014-07-28 14:11:26 +10:00
opal.c powerpc/powernv: Panic on unhandled Machine Check 2015-10-09 08:07:19 +11:00
pci-ioda.c powerpc/powernv/pci-ioda: fix kdump with non-power-of-2 crashkernel= 2015-09-07 20:14:18 +10:00
pci-p5ioc2.c vfio: powerpc/spapr: powerpc/powernv/ioda: Define and implement DMA windows API 2015-06-11 15:16:52 +10:00
pci.c powerpc/MSI: Fix race condition in tearing down MSI interrupts 2015-09-10 17:27:08 +10:00
pci.h powerpc/powernv: move dma_get_required_mask from pnv_phb to pci_controller_ops 2015-08-18 19:32:11 +10:00
powernv.h powerpc/powernv: move dma_get_required_mask from pnv_phb to pci_controller_ops 2015-08-18 19:32:11 +10:00
rng.c powerpc: Use hardware RNG for arch_get_random_seed_* not arch_get_random_* 2015-07-23 19:52:03 +10:00
setup.c powerpc/kexec: Wait 1s for secondaries to enter OPAL 2015-10-06 21:57:42 +11:00
smp.c powerpc/powernv: Handle irq_happened flag correctly in off-line loop 2015-10-21 20:52:49 +11:00
subcore-asm.S powerpc/powernv: Add support for POWER8 split core on powernv 2014-05-28 13:35:37 +10:00
subcore.c powerpc: Add an inline function to update POWER8 HID0 2015-08-14 15:58:28 +10:00
subcore.h powernv/powerpc: Add winkle support for offline cpus 2014-12-15 10:46:41 +11:00