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1b58a975be
linux/arch/powerpc/platforms/powernv
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Peter Xu 1b58a975be powerpc/powernv/npu: Remove redundant change_pte() hook 
The change_pte() notifier was designed to use as a quick path to
update secondary MMU PTEs on write permission changes or PFN changes.
For KVM, it could reduce the vm-exits when vcpu faults on the pages
that was touched up by KSM. It's not used to do cache invalidations,
for example, if we see the notifier will be called before the real PTE
update after all (please see set_pte_at_notify that set_pte_at was
called later).

All the necessary cache invalidation should all be done in
invalidate_range() already.

Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Andrea Arcangeli <aarcange@redhat.com>
Reviewed-by: Alistair Popple <alistair@popple.id.au>
Reviewed-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2019-02-22 00:10:14 +11:00
..
copy-paste.h powerpc/powernv: copy/paste - Mask SO bit in CR 2018-06-04 22:58:41 +10:00
eeh-powernv.c powerpc/powernv/eeh/npu: Fix uninitialized variables in opal_pci_eeh_freeze_status 2018-12-20 22:59:03 +11:00
idle.c powerpc/powernv/idle: Fix build error 2018-08-10 22:12:39 +10:00
Kconfig PCI: consolidate PCI config entry in drivers/pci 2018-11-23 11:45:34 +09:00
Makefile powerpc/powernv: Move TCE manupulation code to its own file 2018-07-16 22:53:07 +10:00
memtrace.c powerpc/powernv: hold device_hotplug_lock when calling memtrace_offline_pages() 2018-10-31 08:54:17 -07:00
npu-dma.c powerpc/powernv/npu: Remove redundant change_pte() hook 2019-02-22 00:10:14 +11:00
ocxl.c ocxl: Rename pnv_ocxl_spa_remove_pe to clarify it's action 2018-06-03 20:40:32 +10:00
opal-async.c powerpc/opal: Add opal_async_wait_response_interruptible() to opal-async 2017-11-06 20:39:28 +11:00
opal-dump.c powerpc/powernv/opal-dump : Use IRQ_HANDLED instead of numbers in interrupt handler 2018-07-24 22:03:24 +10:00
opal-elog.c powerpc: Use octal numbers for file permissions 2018-01-22 05:48:33 +11:00
opal-flash.c powerpc/powernv: Always stop secondaries before reboot/shutdown 2018-04-03 22:59:57 +10:00
opal-hmi.c powerpc-opal: fix spelling mistake "Uniterrupted" -> "Uninterrupted" 2018-06-05 11:33:47 +10:00
opal-imc.c powerpc/perf: Unregister thread-imc if core-imc not supported 2018-06-03 20:43:37 +10:00
opal-irqchip.c powerpc/powernv/opal: Use standard interrupts property when available 2018-08-08 00:32:38 +10:00
opal-kmsg.c powerpc/powernv: Implement and use opal_flush_console 2018-07-24 22:09:56 +10:00
opal-lpc.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
opal-memory-errors.c powerpc: Use sizeof(*foo) rather than sizeof(struct foo) 2018-03-20 16:47:53 +11:00
opal-msglog.c locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE() 2017-10-25 11:01:08 +02:00
opal-nvram.c powerpc/powernv: Fix NVRAM sleep in invalid context when crashing 2018-05-18 00:23:07 +10:00
opal-power.c powerpc/powernv: Move opal_power_control_init() call in opal_init(). 2018-12-21 11:32:49 +11:00
opal-powercap.c powerpc: Convert to using %pOFn instead of device_node.name 2018-10-03 15:40:01 +10:00
opal-prd.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
opal-psr.c powerpc: Use sizeof(*foo) rather than sizeof(struct foo) 2018-03-20 16:47:53 +11:00
opal-rtc.c powerpc: use time64_t in read_persistent_clock 2018-06-03 20:43:33 +10:00
opal-sensor-groups.c powerpc: Convert to using %pOFn instead of device_node.name 2018-10-03 15:40:01 +10:00
opal-sensor.c powernv: opal-sensor: Add support to read 64bit sensor values 2018-05-21 14:48:02 +10:00
opal-sysparam.c powerpc: Convert to using %pOFn instead of device_node.name 2018-10-03 15:40:01 +10:00
opal-tracepoints.c jump_label: move 'asm goto' support test to Kconfig 2019-01-06 09:46:51 +09:00
opal-wrappers.S jump_label: move 'asm goto' support test to Kconfig 2019-01-06 09:46:51 +09:00
opal-xscom.c powerpc: Use sizeof(*foo) rather than sizeof(struct foo) 2018-03-20 16:47:53 +11:00
opal.c Merge branch 'topic/ppc-kvm' into next 2019-02-22 00:09:56 +11:00
pci-cxl.c Revert "powerpc/powernv: Add support for the cxl kernel api on the real phb" 2018-07-02 23:54:32 +10:00
pci-ioda-tce.c powerpc/powernv: Reference iommu_table while it is linked to a group 2018-12-21 16:20:46 +11:00
pci-ioda.c Merge branch 'topic/dma' into next 2019-02-21 23:15:10 +11:00
pci.c powerpc/powernv/pseries: Rework device adding to IOMMU groups 2018-12-21 16:20:46 +11:00
pci.h powerpc/powernv/npu: Add compound IOMMU groups 2018-12-21 16:20:46 +11:00
powernv.h powerpc/powernv: process all OPAL event interrupts with kopald 2018-06-03 20:40:30 +10:00
rng.c
setup.c powerpc/powernv: Make possible for user to force a full ipl cec reboot 2018-10-03 15:39:45 +10:00
smp.c powerpc/64s: Remove POWER9 DD1 support 2018-07-16 11:37:21 +10:00
subcore-asm.S
subcore.c powerpc/64: Use array of paca pointers and allocate pacas individually 2018-03-30 23:34:23 +11:00
subcore.h
vas-debug.c powerpc/powernv/vas: Use DEFINE_SHOW_ATTRIBUTE macro 2018-11-25 17:11:22 +11:00
vas-trace.h powerpc/vas: Add a couple of trace points 2018-03-14 20:13:58 +11:00
vas-window.c ppc: Convert vas ID allocation to new IDA API 2018-08-21 23:54:19 -04:00
vas.c powerpc/vas: Fix cleanup when VAS is not configured 2018-03-14 20:11:37 +11:00
vas.h powerpc: clean the inclusion of stringify.h 2018-07-30 22:48:17 +10:00