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6ecad912a0
linux_dsm_epyc7002/arch/powerpc/platforms/powernv
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Alexey Kardashevskiy 6ecad912a0 powerpc/ioda: Set "read" permission when "write" is set 
Quite often drivers set only "write" permission assuming that this
includes "read" permission as well and this works on plenty of
platforms. However IODA2 is strict about this and produces an EEH when
"read" permission is not set and reading happens.

This adds a workaround in the IODA code to always add the "read" bit
when the "write" bit is set.

Fixes: 10b35b2b74 ("powerpc/powernv: Do not set "read" flag if direction==DMA_NONE")
Cc: stable@vger.kernel.org # 4.2+
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Tested-by: Douglas Miller <dougmill@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-02-17 23:52:17 +11:00
..
eeh-powernv.c powerpc/eeh: Fix stale cached primary bus 2016-02-15 21:10:04 +11:00
idle.c powerpc/powernv: remove FW_FEATURE_OPALv3 and just use FW_FEATURE_OPAL 2015-12-17 22:40:54 +11:00
Kconfig powerpc/powernv: Add opal-prd channel 2015-06-05 08:32:21 +10:00
Makefile powerpc/powernv: Add a kmsg_dumper that flushes console output on panic 2015-12-27 19:12:40 +11:00
npu-dma.c powerpc/powernv: Add support for Nvlink NPUs 2015-12-17 22:41:00 +11:00
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 deadlock introduced by "Fix double endian conversion" 2015-12-18 22:24:15 +11:00
opal-kmsg.c powerpc/powernv: Fix OPAL_CONSOLE_FLUSH prototype and usages 2016-01-13 12:35:17 +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: Drop owner assignment from platform_driver 2015-11-24 14:21:28 +11:00
opal-rtc.c powerpc/powernv: Only delay opal_rtc_read() retry when necessary 2015-12-27 19:12:40 +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 a kmsg_dumper that flushes console output on panic 2015-12-27 19:12:40 +11:00
opal-xscom.c powerpc/powernv: remove FW_FEATURE_OPALv3 and just use FW_FEATURE_OPAL 2015-12-17 22:40:54 +11:00
opal.c powerpc updates for 4.5 2016-01-15 13:18:47 -08:00
pci-ioda.c powerpc/powernv: Fix stale PE primary bus 2016-02-15 21:10:04 +11:00
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/ioda: Set "read" permission when "write" is set 2016-02-17 23:52:17 +11:00
pci.h powerpc/powernv: Fix stale PE primary bus 2016-02-15 21:10:04 +11:00
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/powernv: remove FW_FEATURE_OPALv3 and just use FW_FEATURE_OPAL 2015-12-17 22:40:54 +11:00
smp.c powerpc/powernv: remove FW_FEATURE_OPALv3 and just use FW_FEATURE_OPAL 2015-12-17 22:40:54 +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