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linux/arch/powerpc/platforms/pseries
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Vaibhav Jain 3a855b7ac7 powerpc/papr_scm: Force a scm-unbind if initial scm-bind fails 
In some cases initial bind of scm memory for an lpar can fail if
previously it wasn't released using a scm-unbind hcall. This situation
can arise due to panic of the previous kernel or forced lpar
fadump. In such cases the H_SCM_BIND_MEM return a H_OVERLAP error.

To mitigate such cases the patch updates papr_scm_probe() to force a
call to drc_pmem_unbind() in case the initial bind of scm memory fails
with EBUSY error. In case scm-bind operation again fails after the
forced scm-unbind then we follow the existing error path. We also
update drc_pmem_bind() to handle the H_OVERLAP error returned by phyp
and indicate it as a EBUSY error back to the caller.

Suggested-by: "Oliver O'Halloran" <oohall@gmail.com>
Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Reviewed-by: Oliver O'Halloran <oohall@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190629160610.23402-4-vaibhav@linux.ibm.com
2019-07-22 23:31:00 +10:00
..
cmm.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
dlpar.c
powerpc updates for 5.3
2019-07-13 16:08:36 -07:00
dtl.c
powerpc updates for 5.3
2019-07-13 16:08:36 -07:00
eeh_pseries.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
event_sources.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
firmware.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
hotplug-cpu.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
hotplug-memory.c
powerpc updates for 5.3
2019-07-13 16:08:36 -07:00
hvCall_inst.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
hvCall.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
hvconsole.c
powerpc updates for 5.3
2019-07-13 16:08:36 -07:00
hvcserver.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
ibmebus.c
bus_find_device: Unify the match callback with class_find_device
2019-06-24 05:22:31 +02:00
io_event_irq.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
iommu.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
Kconfig
powerpc/Kconfig: Clean up formatting
2019-07-04 16:55:10 +10:00
kexec.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
lpar.c
powerpc updates for 5.3
2019-07-13 16:08:36 -07:00
lparcfg.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
Makefile
powerpc/pseries: Move mm/book3s64/vphn.c under platforms/pseries/
2019-07-04 22:23:38 +10:00
mobility.c
powerpc updates for 5.3
2019-07-13 16:08:36 -07:00
msi.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441
2019-06-05 17:37:17 +02:00
nvram.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
of_helpers.c
pseries/drc-info: Search DRC properties for CPU indexes
2018-01-21 16:21:46 +11:00
of_helpers.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
offline_states.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
papr_scm.c
powerpc/papr_scm: Force a scm-unbind if initial scm-bind fails
2019-07-22 23:31:00 +10:00
pci_dlpar.c
powerpc: Convert to using %pOF instead of full_name
2017-08-23 22:27:04 +10:00
pci.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
pmem.c
powerpc/pseries/pmem: Fix a set but not used value
2019-04-20 22:02:26 +10:00
power.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 167
2019-05-30 11:26:39 -07:00
pseries_energy.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
pseries.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
ras.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
reconfig.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
rng.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
scanlog.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
setup.c
powerpc updates for 5.3
2019-07-13 16:08:36 -07:00
smp.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
suspend.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
vio.c
powerpc updates for 5.3
2019-07-13 16:08:36 -07:00
vphn.c
powerpc/pseries: Move mm/book3s64/vphn.c under platforms/pseries/
2019-07-04 22:23:38 +10:00