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1f12096aca
linux/arch/powerpc/include/asm
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Michael Ellerman 1f12096aca Merge the lockless page table walk rework into next 
This merges the lockless page table walk rework series from Aneesh.
Because it touches powerpc KVM code we are sharing it with the kvm-ppc
tree in our topic/ppc-kvm branch.

This is the cover letter from Aneesh:

Avoid IPI while updating page table entries.

Problem Summary:
Slow termination of KVM guest with large guest RAM config due to a
large number of IPIs that were caused by clearing level 1 PTE
entries (THP) entries. This is shown in the stack trace below.

- qemu-system-ppc  [kernel.vmlinux]            [k] smp_call_function_many
   - smp_call_function_many
      - 36.09% smp_call_function_many
           serialize_against_pte_lookup
           radix__pmdp_huge_get_and_clear
           zap_huge_pmd
           unmap_page_range
           unmap_vmas
           unmap_region
           __do_munmap
           __vm_munmap
           sys_munmap
          system_call
           __munmap
           qemu_ram_munmap
           qemu_anon_ram_free
           reclaim_ramblock
           call_rcu_thread
           qemu_thread_start
           start_thread
           __clone

Why we need to do IPI when clearing PMD entries:
This was added as part of commit: 13bd817bb8 ("powerpc/thp: Serialize pmd clear against a linux page table walk")

serialize_against_pte_lookup makes sure that all parallel lockless
page table walk completes before we convert a PMD pte entry to regular
pmd entry. We end up doing that conversion in the below scenarios

1) __split_huge_zero_page_pmd
2) do_huge_pmd_wp_page_fallback
3) MADV_DONTNEED running parallel to page faults.

local_irq_disable and lockless page table walk:

The lockless page table walk work with the assumption that we can
dereference the page table contents without holding a lock. For this
to work, we need to make sure we read the page table contents
atomically and page table pages are not going to be freed/released
while we are walking the table pages. We can achieve by using a rcu
based freeing for page table pages or if the architecture implements
broadcast tlbie, we can block the IPI as we walk the page table pages.

To support both the above framework, lockless page table walk is done
with irq disabled instead of rcu_read_lock()

We do have two interface for lockless page table walk, gup fast and
__find_linux_pte. This patch series makes __find_linux_pte table walk
safe against the conversion of PMD PTE to regular PMD.

gup fast:

gup fast is already safe against THP split because kernel now
differentiate between a pmd split and a compound page split. gup fast
can run parallel to a pmd split and we prevent a parallel gup fast to
a hugepage split, by freezing the page refcount and failing the
speculative page ref increment.

Similar to how gup is safe against parallel pmd split, this patch
series updates the __find_linux_pte callers to be safe against a
parallel pmd split. We do that by enforcing the following rules.

1) Don't reload the pte value, because that can be updated in
   parallel.
2) Code should be able to work with a stale PTE value and not the
   recent one. ie, the pte value that we are looking at may not be the
   latest value in the page table.
3) Before looking at pte value check for _PAGE_PTE bit. We now do this
as part of pte_present() check.

Performance:

This speeds up Qemu guest RAM del/unplug time as below
128 core, 496GB guest:

Without patch:
  munmap start: timer = 13162 ms, PID=7684
  munmap finish: timer = 95312 ms, PID=7684 - delta = 82150 ms

With patch (upto removing IPI)
  munmap start: timer = 196449 ms, PID=6681
  munmap finish: timer = 196488 ms, PID=6681 - delta = 39ms

With patch (with adding the tlb invalidate in pmdp_huge_get_and_clear_full)
  munmap start: timer = 196345 ms, PID=6879
  munmap finish: timer = 196714 ms, PID=6879 - delta = 369ms

Link: https://lore.kernel.org/r/20200505071729.54912-1-aneesh.kumar@linux.ibm.com
2020-05-06 15:53:24 +10:00
..
book3s Merge the lockless page table walk rework into next 2020-05-06 15:53:24 +10:00
nohash powerpc/mm: Don't kmap_atomic() in pte_offset_map() on PPC32 2020-03-04 22:44:27 +11:00
8xx_immap.h
accounting.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
agp.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
archrandom.h powerpc: Mark archrandom.h functions __must_check 2020-01-25 12:18:51 -05:00
asm-405.h powerpc/405: move PPC405_ERR77 in asm-405.h 2018-07-30 22:48:13 +10:00
asm-compat.h powerpc: move ASM_CONST and stringify_in_c() into asm-const.h 2018-07-30 22:48:16 +10:00
asm-const.h powerpc: move ASM_CONST and stringify_in_c() into asm-const.h 2018-07-30 22:48:16 +10:00
asm-offsets.h
asm-prototypes.h powerpc/64s: Implement interrupt exit logic in C 2020-04-01 13:42:14 +11:00
async_tx.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 33 2019-05-24 17:27:11 +02:00
atomic.h locking/atomic, powerpc: Use s64 for atomic64 2019-06-03 12:32:56 +02:00
backlight.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
barrier.h powerpc: Remove comment about read_barrier_depends() 2020-01-24 10:33:52 -08:00
bitops.h powerpc: support KASAN instrumentation of bitops 2019-11-07 13:15:40 +11:00
bootx.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
btext.h powerpc/32s: fix booting with CONFIG_PPC_EARLY_DEBUG_BOOTX 2019-06-07 19:00:14 +10:00
bug.h powerpc: Refactor BUG/WARN macros 2019-11-18 22:27:51 +11:00
bugs.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
cache.h powerpc: Prefer __section and __printf from compiler_attributes.h 2020-03-27 00:16:32 +11:00
cacheflush.h powerpc/64: Avoid isync in flush_dcache_range() 2020-03-27 17:37:07 +11:00
cell-pmu.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 153 2019-05-30 11:26:32 -07:00
cell-regs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
checksum.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
cmpxchg.h powerpc: move ASM_CONST and stringify_in_c() into asm-const.h 2018-07-30 22:48:16 +10:00
code-patching-asm.h powerpc/asm: Add a patch_site macro & helpers for patching instructions 2018-08-08 00:32:25 +10:00
code-patching.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
compat.h compat: provide compat_ptr() on all architectures 2020-01-03 09:32:51 +01:00
context_tracking.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
copro.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
cpm.h soc: fsl: move cpm.h from powerpc/include/asm to include/soc/fsl 2019-12-09 13:54:34 -06:00
cpm1.h powerpc/sysdev: change CPM GPIO to platform_device 2018-01-20 23:29:02 -06:00
cpm2.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cpu_has_feature.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cpufeature.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
cpuidle.h powerpc/64s: Reimplement book3s idle code in C 2019-04-30 22:37:48 +10:00
cputable.h powerpc/mm: Remove kvm radix prefetch workaround for Power9 DD2.2 2020-01-26 00:11:37 +11:00
cputhreads.h powerpc: Detect the presence of big-cores via "ibm, thread-groups" 2018-10-13 22:21:25 +11:00
cputime.h powerpc/64/sycall: Implement syscall entry/exit logic in C 2020-04-01 13:42:13 +11:00
current.h powerpc/64: allow compiler to cache 'current' 2019-08-20 21:22:15 +10:00
dbdma.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dbell.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
dcr-generic.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
dcr-mmio.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
dcr-native.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
dcr-regs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dcr.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
debug.h powerpc: declare set_breakpoint() static 2018-07-30 22:48:18 +10:00
debugfs.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
delay.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
device.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428 2019-06-05 17:37:16 +02:00
disassemble.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
dma-direct.h powerpc: remove support for NULL dev in __phys_to_dma / __dma_to_phys 2019-11-20 20:31:40 +01:00
dma.h powerpc/32: drop unused ISA_DMA_THRESHOLD 2020-04-01 14:30:50 +11:00
drmem.h powerpc/pseries: Avoid NULL pointer dereference when drmem is unavailable 2020-02-19 22:46:11 +11:00
dt_cpu_ftrs.h powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +10:00
edac.h
eeh_event.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
eeh.h powerpc/eeh: Rework eeh_ops->probe() 2020-03-25 12:09:39 +11:00
ehv_pic.h
elf.h powerpc/prom_init: Undo relocation before entering secure mode 2019-10-29 15:12:17 +11:00
elfnote.h powerpc: Add PowerPC Capabilities ELF note 2019-08-30 09:40:15 +10:00
emergency-restart.h
emulated_ops.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 340 2019-06-05 17:37:07 +02:00
epapr_hcalls.h powerpc/epapr: Move register keyword at the beginning of declaration 2018-03-13 15:50:32 +11:00
exception-64e.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
exception-64s.h powerpc/64s/exception: Move real to virt switch into the common handler 2020-04-01 13:42:11 +11:00
exec.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
extable.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fadump-internal.h powerpc/fadump: use static allocation for reserved memory ranges 2020-05-04 22:29:58 +10:00
fadump.h powerpc/fadump: add support to preserve crash data on FADUMP disabled kernel 2019-09-14 00:04:45 +10:00
fb.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
feature-fixups.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
firmware.h powerpc/pseries/iommu: Separate FW_FEATURE_MULTITCE to put/stuff features 2020-01-06 16:25:30 +11:00
fixmap.h powerpc/83xx: map IMMR with a BAT. 2019-11-19 19:38:38 +11:00
floppy.h floppy: consolidate the dummy fd_cacheflush definition 2017-10-19 16:37:08 +02:00
fs_pd.h powerpc/8xx: Getting rid of remaining use of CONFIG_8xx 2017-08-10 23:32:12 +10:00
fsl_85xx_cache_sram.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
fsl_gtm.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
fsl_hcalls.h scripts/spelling.txt: add "partiton" pattern and fix typo instances 2017-02-27 18:43:46 -08:00
fsl_lbc.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
fsl_pamu_stash.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
fsl_pm.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ftrace.h powerpc/ftrace: Enable HAVE_FUNCTION_GRAPH_RET_ADDR_PTR 2019-09-18 12:24:55 +10:00
futex.h futex: arch_futex_atomic_op_inuser() calling conventions change 2020-03-27 23:58:51 -04:00
grackle.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hardirq.h powerpc updates for 4.18 2018-06-07 10:23:33 -07:00
head-64.h powerpc/64s/exception: move head-64.h exception code to exception-64s.S 2019-08-30 10:32:36 +10:00
heathrow.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
highmem.h powerpc: remove unnecessary inclusion of asm/tlbflush.h 2018-07-30 22:48:20 +10:00
hmi.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 114 2019-05-24 17:39:01 +02:00
hugetlb.h powerpc/mm: move FSL_BOOK3 version of update_mmu_cache() 2019-08-20 21:22:14 +10:00
hvcall.h KVM: PPC: Book3S HV: Implement H_SVM_INIT_ABORT hcall 2020-01-17 15:08:31 +11:00
hvconsole.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
hvcserver.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
hvsi.h powerpc/hvsi: Fix spelling mistake: "lenght" should be "length" 2019-01-14 20:39:27 +11:00
hw_breakpoint.h powerpc/hw_breakpoints: Rewrite 8xx breakpoints to allow any address range size. 2020-01-23 21:31:14 +11:00
hw_irq.h powerpc/64s: Implement interrupt exit logic in C 2020-04-01 13:42:14 +11:00
hydra.h
i8259.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ibmebus.h
icswx.h powerpc/vas: Define nx_fault_stamp in coprocessor_request_block 2020-04-20 16:53:00 +10:00
ide.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
idle.h powerpc/sysfs: Show idle_purr and idle_spurr for every CPU 2020-04-30 12:35:26 +10:00
ima.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
imc-pmu.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 112 2019-05-24 17:39:01 +02:00
immap_cpm2.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
io_event_irq.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
io-defs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
io-workarounds.h powerpc/mm: rework io-workaround invocation. 2019-08-27 13:03:34 +10:00
io.h remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
iommu.h Merge branch 'topic/ppc-kvm' into next 2019-08-30 09:52:57 +10:00
ipic.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
irq_work.h powerpc: Add missing prototype for arch_irq_work_raise() 2018-03-13 15:50:37 +11:00
irq.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
irqflags.h powerpc/64: Rename soft_enabled to irq_soft_mask 2018-01-19 22:37:01 +11:00
isa-bridge.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
jump_label.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
kasan.h powerpc/32: Add support of KASAN_VMALLOC 2020-01-27 22:37:33 +11:00
Kbuild asm-generic: make more kernel-space headers mandatory 2020-04-02 09:35:25 -07:00
kdebug.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
kdump.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
kexec.h powerpc: Fix kexec failure on book3s/32 2019-06-07 16:24:47 +10:00
keylargo.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
kgdb.h powerpc/kgdb: add kgdb_arch_set/remove_breakpoint() 2018-10-20 13:26:47 +11:00
kmap_types.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
kprobes.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
kup.h powerpc: Implement user_access_save() and user_access_restore() 2020-01-28 23:14:44 +11:00
kvm_asm.h KVM: PPC: Book3S HV: Treat TM-related invalid form instructions on P9 like the valid ones 2020-03-19 16:39:52 +11:00
kvm_book3s_32.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
kvm_book3s_64.h powerpc/kvm/book3s: Use pte_present instead of opencoding _PAGE_PRESENT check 2020-05-05 21:20:16 +10:00
kvm_book3s_asm.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
kvm_book3s_uvmem.h KVM: PPC: Book3S HV: Add a capability for enabling secure guests 2020-03-26 11:09:04 +11:00
kvm_book3s.h powerpc/kvm/book3s: Use kvm helpers to walk shadow or secondary table 2020-05-05 21:20:15 +10:00
kvm_booke_hv_asm.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
kvm_booke.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
kvm_fpu.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
kvm_host.h powerpc updates for 5.7 2020-04-05 11:12:59 -07:00
kvm_para.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
kvm_ppc.h KVM: PPC: Book3S HV: Add a capability for enabling secure guests 2020-03-26 11:09:04 +11:00
libata-portmap.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
linkage.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
livepatch.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
local.h powerpc: Add const qual to local_read() parameter 2019-11-24 15:06:33 -08:00
lppaca.h powerpc updates for 5.3 2019-07-13 16:08:36 -07:00
lv1call.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 167 2019-05-30 11:26:39 -07:00
machdep.h powerpc: Remove empty comment 2019-09-05 14:22:41 +10:00
macio.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mc146818rtc.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
mce.h powerpc/pseries: Handle UE event for memcpy_mcsafe 2020-03-27 14:59:35 +11:00
mediabay.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mem_encrypt.h powerpc/pseries/svm: Force SWIOTLB for secure guests 2019-08-30 09:55:41 +10:00
membarrier.h membarrier: Provide GLOBAL_EXPEDITED command 2018-02-05 21:34:31 +01:00
mm-arch-hooks.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
mman.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
mmiowb.h arch: Remove dummy mmiowb() definitions from arch code 2019-04-08 12:09:27 +01:00
mmu_context.h powerpc: Use mm_context vas_windows counter to issue CP_ABORT 2020-04-20 16:53:01 +10:00
mmu.h powerpc/pkeys: Avoid using lockless page table walk 2020-05-05 21:20:13 +10:00
mmzone.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
module.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
mpc5xxx.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 40 2019-05-24 17:27:12 +02:00
mpc6xx.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mpc52xx_psc.h
mpc52xx.h powerpc/52xx: Add missing functions prototypes 2018-05-25 12:04:42 +10:00
mpc85xx.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 40 2019-05-24 17:27:12 +02:00
mpc5121.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 449 2019-06-05 17:37:18 +02:00
mpc8260.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mpic_msgr.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
mpic_timer.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
mpic.h powerpc/msi: Fix compile error on mpc83xx 2018-10-21 19:32:07 +11:00
msi_bitmap.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
nmi.h powerpc/64s: Fix HV NMI vs HV interrupt recoverability test 2019-02-26 23:28:24 +11:00
nvram.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ohare.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
opal-api.h powerpc/powernv: Add explicit fast-reboot support 2020-03-04 22:44:27 +11:00
opal.h powerpc/powernv: Add OPAL API interface to access secure variable 2019-11-13 00:33:22 +11:00
oprofile_impl.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
paca.h powerpc updates for 5.3 2019-07-13 16:08:36 -07:00
page_32.h powerpc/32: Add warning on misaligned copy_page() or clear_page() 2019-08-20 21:22:15 +10:00
page_64.h mm/vma: define a default value for VM_DATA_DEFAULT_FLAGS 2020-04-10 15:36:21 -07:00
page.h mm/vma: define a default value for VM_DATA_DEFAULT_FLAGS 2020-04-10 15:36:21 -07:00
parport.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pasemi_dma.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
pci-bridge.h powerpc/pcidn: Make VF pci_dn management CONFIG_PCI_IOV specific 2020-01-23 21:31:19 +11:00
pci.h powerpc/pci: Remove pcibios_setup_bus_devices() 2020-01-06 16:25:29 +11:00
percpu.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
perf_event_fsl_emb.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
perf_event_server.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
perf_event.h powerpc: Rename current_stack_pointer() to current_stack_frame() 2020-03-04 22:44:28 +11:00
pgalloc.h mm: remove quicklist page table caches 2019-09-24 15:54:09 -07:00
pgtable-be-types.h powerpc/64: only book3s/64 supports CONFIG_PPC_64K_PAGES 2019-05-03 01:20:23 +10:00
pgtable-types.h powerpc/64: only book3s/64 supports CONFIG_PPC_64K_PAGES 2019-05-03 01:20:23 +10:00
pgtable.h powerpc/32: Fix missing NULL pmd check in virt_to_kpte() 2020-03-13 21:13:05 +11:00
pkeys.h powerpc/pkeys: make protection key 0 less special 2018-07-24 21:43:24 +10:00
plpar_wrappers.h powerpc/ptdump: drop non vital #ifdefs 2019-08-20 21:22:09 +10:00
pmac_feature.h
pmac_low_i2c.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
pmac_pfunc.h powerpc/powermac: Move pmac_pfunc_base_install prototype to header file 2018-05-25 12:04:41 +10:00
pmc.h powerpc/pmu: Set pmcregs_in_use in paca when running as LPAR 2019-07-15 12:41:26 +10:00
pmi.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 153 2019-05-30 11:26:32 -07:00
pnv-ocxl.h powerpc: Use the correct style for SPDX License Identifier 2019-07-03 15:19:36 +10:00
pnv-pci.h powerpc/powernv/ioda: Find opencapi slot for a device node 2020-01-23 21:31:17 +11:00
powernv.h powerpc updates for 5.3 2019-07-13 16:08:36 -07:00
ppc_asm.h powerpc/32s: get rid of CPU_FTR_601 feature 2019-08-28 23:19:33 +10:00
ppc-opcode.h powerpc updates for 5.3 2019-07-13 16:08:36 -07:00
ppc-pci.h powerpc/eeh: Convert log messages to eeh_edev_* macros 2019-08-22 23:12:47 +10:00
ppc4xx.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 40 2019-05-24 17:27:12 +02:00
probes.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
processor.h powerpc: Use mm_context vas_windows counter to issue CP_ABORT 2020-04-20 16:53:01 +10:00
prom.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ps3.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 167 2019-05-30 11:26:39 -07:00
ps3av.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 167 2019-05-30 11:26:39 -07:00
ps3gpu.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 340 2019-06-05 17:37:07 +02:00
ps3stor.h powerpc updates for 5.3 2019-07-13 16:08:36 -07:00
pte-walk.h powerpc/book3s: Use config independent helpers for page table walk 2019-07-05 00:43:50 +10:00
ptrace.h powerpc/ptrace: drop unnecessary #ifdefs CONFIG_PPC64 2020-04-01 14:30:47 +11:00
reg_8xx.h powerpc/hw_breakpoints: Rewrite 8xx breakpoints to allow any address range size. 2020-01-23 21:31:14 +11:00
reg_a2.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
reg_booke.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
reg_fsl_emb.h powerpc: clean the inclusion of stringify.h 2018-07-30 22:48:17 +10:00
reg.h powerpc: Add current_stack_pointer as a register global 2020-03-04 22:44:28 +11:00
rheap.h powerpc: Add missing prototype 2018-05-25 12:04:43 +10:00
rio.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
rtas.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
runlatch.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
seccomp.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sections.h powerpc: Define arch_is_kernel_initmem_freed() for lockdep 2019-11-27 18:41:26 +11:00
secure_boot.h powerpc: Detect the trusted boot state of the system 2019-11-12 12:25:49 +11:00
security_features.h powerpc updates for 5.5 2019-11-30 14:35:43 -08:00
secvar.h powerpc/powernv: Add OPAL API interface to access secure variable 2019-11-13 00:33:22 +11:00
serial.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
setjmp.h powerpc: Make setjmp/longjmp signature standard 2020-04-01 14:30:51 +11:00
setup.h powerpc/fsl: Add nospectre_v2 command line argument 2018-12-20 22:59:03 +11:00
sfp-machine.h powerpc/math-emu: Update macros from GCC 2018-12-04 19:45:01 +11:00
shmparam.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
signal.h powerpc/64/sycall: Implement syscall entry/exit logic in C 2020-04-01 13:42:13 +11:00
slice.h powerpc/mm: define get_slice_psize() all the time 2019-05-03 01:20:23 +10:00
smp.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
smu.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sparsemem.h powerpc/mm: thread pgprot_t through create_section_mapping() 2020-04-10 15:36:21 -07:00
spinlock_types.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
spinlock.h powerpc/spinlocks: Include correct header for static key 2019-12-30 21:20:41 +11:00
spu_csa.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 153 2019-05-30 11:26:32 -07:00
spu_info.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 153 2019-05-30 11:26:32 -07:00
spu_priv1.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 167 2019-05-30 11:26:39 -07:00
spu.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 153 2019-05-30 11:26:32 -07:00
sstep.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
stackprotector.h powerpc/64: add stack protector support 2018-10-03 15:40:03 +10:00
stacktrace.h powerpc: Add show_user_instructions() 2018-08-08 00:32:30 +10:00
string.h powerpc/memcpy: Add memcpy_mcsafe for pmem 2019-08-21 22:23:48 +10:00
svm.h powerpc/pseries/svm: Use shared memory for Debug Trace Log (DTL) 2019-08-30 09:55:40 +10:00
swab.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
swiotlb.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
switch_to.h powerpc: Use mm_context vas_windows counter to issue CP_ABORT 2020-04-20 16:53:01 +10:00
synch.h powerpc: clean the inclusion of stringify.h 2018-07-30 22:48:17 +10:00
syscall.h powerpc: define syscall_get_error() 2019-07-16 19:23:24 -07:00
syscalls.h powerpc/syscalls: switch rtas(2) to SYSCALL_DEFINE 2018-05-10 23:25:14 +10:00
task_size_32.h powerpc: Avoid circular header inclusion in mmu-hash.h 2019-02-23 22:31:39 +11:00
task_size_64.h powerpc/64: only book3s/64 supports CONFIG_PPC_64K_PAGES 2019-05-03 01:20:23 +10:00
tce.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
termios.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
thread_info.h powerpc/64: make buildable without CONFIG_COMPAT 2020-04-03 00:10:00 +11:00
time.h powerpc/64/sycall: Implement syscall entry/exit logic in C 2020-04-01 13:42:13 +11:00
timex.h powerpc/32s: get rid of CPU_FTR_601 feature 2019-08-28 23:19:33 +10:00
tlb.h mm/mmu_gather: invalidate TLB correctly on batch allocation failure and flush 2020-02-04 03:05:26 +00:00
tlbflush.h powerpc: split asm/tlbflush.h 2018-07-30 22:48:21 +10:00
tm.h powerpc: Export tm_enable()/tm_disable/tm_abort() APIs 2018-05-24 16:04:02 +10:00
topology.h powerpc/numa: Remove late request for home node associativity 2020-03-04 22:44:31 +11:00
trace_clock.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
trace.h powerpc: Add doorbell tracepoints 2019-05-01 16:45:05 +10:00
tsi108_irq.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
tsi108_pci.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
tsi108.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
types.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
uaccess.h powerpc: Implement user_access_save() and user_access_restore() 2020-01-28 23:14:44 +11:00
udbg.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
uic.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ultravisor-api.h KVM: PPC: Book3S HV: Support reset of secure guest 2019-11-28 17:02:31 +11:00
ultravisor.h KVM: PPC: Book3S HV: Support reset of secure guest 2019-11-28 17:02:31 +11:00
unaligned.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
uninorth.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
unistd.h powerpc: Add back __ARCH_WANT_SYS_LLSEEK macro 2020-04-03 00:09:59 +11:00
uprobes.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
user.h powerpc/aout: Fix struct user definition to use user_pt_regs 2018-10-19 15:09:04 +11:00
vas.h crypto/nx: Remove 'pid' in vas_tx_win_attr struct 2020-04-20 16:53:14 +10:00
vdso_datapage.h powerpc/vdso32: Don't read cache line size from the datapage on PPC32. 2020-01-23 21:31:15 +11:00
vdso.h powerpc/vdso: remove deprecated VDS64_HAS_DESCRIPTORS references 2020-03-13 21:13:06 +11:00
vga.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vio.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
vmalloc.h mm/vmalloc: Add empty <asm/vmalloc.h> headers and use them from <linux/vmalloc.h> 2019-12-10 10:12:55 +01:00
word-at-a-time.h
xics.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xilinx_intc.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
xilinx_pci.h
xive-regs.h powerpc/xive: Discard ESB load value when interrupt is invalid 2020-01-22 20:31:41 +11:00
xive.h powerpc/xive: Define xive_native_alloc_irq_on_chip() 2020-04-20 16:52:59 +10:00
xmon.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
xor_altivec.h powerpc/altivec: Add missing prototypes for altivec 2018-05-25 12:04:38 +10:00
xor.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00