Ian Munsie
eb01d4c238
cxl: Fix PSL error due to duplicate segment table entries ...
In certain circumstances the PSL (Power Service Layer, which provides
translation services for CXL hardware) can send an interrupt for a
segment miss that the kernel has already handled. This can happen if
multiple translations for the same segment are queued in the PSL before
the kernel has restarted the first translation.
The CXL driver does not expect this situation and does not check if a
segment had already been handled. This could cause a duplicate segment
table entry which in turn caused a PSL error taking down the card.
This patch fixes the issue by checking for existing entries in the
segment table that match the segment we are trying to insert, so as to
avoid inserting duplicate entries.
Signed-off-by: Ian Munsie <imunsie@au1.ibm.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2014-10-28 19:52:52 +11:00
altera-stapl: replace strnicmp with strncasecmp
2014-10-14 02:18:25 +02:00
Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma
2014-10-18 18:11:04 -07:00
cxl: Fix PSL error due to duplicate segment table entries
2014-10-28 19:52:52 +11:00
EEPROM: Introduce the use of devm_kzalloc
2014-09-23 23:04:17 -07:00
soc/tegra: Add efuse driver for Tegra
2014-07-17 14:36:01 +02:00
GenWQE: Support blocking when DDCB queue is busy
2014-09-23 23:15:47 -07:00
Char/Misc driver patches for 3.18-rc1
2014-10-08 06:55:41 -04:00
virtio: unify config_changed handling
2014-10-15 10:24:54 +10:30
Merge branch 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next
2014-06-03 15:48:23 -07:00
net: set name_assign_type in alloc_netdev()
2014-07-15 16:12:48 -07:00
misc: st_core: Protect unsigned value against becoming negative
2014-09-23 23:14:28 -07:00
PCI changes for the v3.18 merge window:
2014-10-09 15:03:49 -04:00
misc: arm-charlcd: add DT probe support
2014-05-03 19:26:25 -04:00
ASoC: atmel-ssc: distinguish whether SSC supports fslen ext
2014-06-21 11:37:32 +01:00
ARM: at91/tclib: mask interruptions at shutdown and probe
2014-09-08 10:54:03 +02:00
misc: bh1770glc: Use managed functions
2014-07-22 16:28:11 -07:00
misc: bh1780: Introduce the use of devm_kzalloc
2014-07-27 11:10:42 -07:00
misc: (ds1682) replace obsolete simple_strtoull() with kstrtoull()
2014-05-03 19:26:24 -04:00
Add MODULE_DESCRIPTION to dummy-irq.c and lkdtm.c in drivers/misc
2014-07-09 14:19:34 -07:00
misc: ioc4: Use ktime_get_ns()
2014-07-23 15:01:43 -07:00
cxl: Add base builtin support
2014-10-08 20:15:56 +11:00
misc: lattice-ecp3-config: Add missing MODULE_FIRMWARE()
2014-09-23 23:04:17 -07:00
Add MODULE_DESCRIPTION to dummy-irq.c and lkdtm.c in drivers/misc
2014-07-09 14:19:34 -07:00
cxl: Add base builtin support
2014-10-08 20:15:56 +11:00
pch_phub: Report error writing MAC back to user
2014-03-08 22:15:51 -08:00
pcie-gadget-spear: use devm_ functions
2014-09-23 23:04:17 -07:00
misc: sram: implement reserved sram areas
2014-02-28 15:31:11 -08:00
misc: vexpress: Fix sparse non static symbol warnings
2014-07-22 16:28:11 -07:00
MAINTAINERS: add entry for VMware Balloon driver
2014-06-20 11:47:33 -07:00
eb01d4c238