UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity
OpenCloudOS-Kernel/arch/powerpc/platforms/pseries
History
Aneesh Kumar K.V faa6d21153 powerpc/nvdimm: use H_SCM_QUERY hcall on H_OVERLAP error 
Right now we force an unbind of SCM memory at drcindex on H_OVERLAP error.
This really slows down operations like kexec where we get the H_OVERLAP
error because we don't go through a full hypervisor re init.

H_OVERLAP error for a H_SCM_BIND_MEM hcall indicates that SCM memory at
drc index is already bound. Since we don't specify a logical memory
address for bind hcall, we can use the H_SCM_QUERY hcall to query
the already bound logical address.

Boot time difference with and without patch is:

[    5.583617] IOMMU table initialized, virtual merging enabled
[    5.603041] papr_scm ibm,persistent-memory:ibm,pmemory@44104001: Retrying bind after unbinding
[  301.514221] papr_scm ibm,persistent-memory:ibm,pmemory@44108001: Retrying bind after unbinding
[  340.057238] hv-24x7: read 1530 catalog entries, created 537 event attrs (0 failures), 275 descs

after fix

[    5.101572] IOMMU table initialized, virtual merging enabled
[    5.116984] papr_scm ibm,persistent-memory:ibm,pmemory@44104001: Querying SCM details
[    5.117223] papr_scm ibm,persistent-memory:ibm,pmemory@44108001: Querying SCM details
[    5.120530] hv-24x7: read 1530 catalog entries, created 537 event attrs (0 failures), 275 descs

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190903123452.28620-2-aneesh.kumar@linux.ibm.com
 		2019-09-25 08:32:59 +10:00
..
Kconfig powerpc/pseries/svm: Force SWIOTLB for secure guests 2019-08-30 09:55:41 +10:00
Makefile powerpc/fadump: introduce callbacks for platform specific operations 2019-09-14 00:04:42 +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 powerpc/eeh: Convert log messages to eeh_edev_* macros 2019-08-22 23:12:47 +10:00
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/pseries/hotplug-memory.c: Replace nested ifs by switch-case 2019-08-05 18:53:04 +10:00
hvCall.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
hvCall_inst.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -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 powerpc/pseries/iommu: Don't use dma_iommu_ops on secure guests 2019-08-30 09:55:41 +10:00
kexec.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
lpar.c powerpc/pseries: Call H_BLOCK_REMOVE when supported 2019-09-24 19:58:47 +10:00
lparcfg.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
mobility.c powerpc/pseries/mobility: use cond_resched when updating device tree 2019-08-20 21:22:28 +10:00
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/nvdimm: use H_SCM_QUERY hcall on H_OVERLAP error 2019-09-25 08:32:59 +10:00
pci.c powerpc/eeh: Refactor around eeh_probe_devices() 2019-08-22 23:12:46 +10:00
pci_dlpar.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
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.h powerpc/pseries: Read TLB Block Invalidate Characteristics 2019-09-24 19:58:42 +10:00
pseries_energy.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
ras.c powerpc/64s/pseries: machine check convert to use common event code 2019-08-30 10:32:35 +10:00
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
rtas-fadump.c powerpc/fadump: support holes in kernel boot memory area 2019-09-14 00:04:46 +10:00
rtas-fadump.h powerpc/fadump: support holes in kernel boot memory area 2019-09-14 00:04:46 +10:00
scanlog.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
setup.c powerpc/pseries: Read TLB Block Invalidate Characteristics 2019-09-24 19:58:42 +10:00
smp.c powerpc/pseries/svm: Disable doorbells in SVM guests 2019-08-30 09:55:41 +10:00
suspend.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
svm.c powerpc/pseries/svm: Force SWIOTLB for secure guests 2019-08-30 09:55:41 +10:00
vio.c powerpc updates for 5.4 2019-09-20 11:48:06 -07:00
vphn.c powerpc/pseries: Move mm/book3s64/vphn.c under platforms/pseries/ 2019-07-04 22:23:38 +10:00