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linux/arch/powerpc/kernel
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Nicholas Piggin 579940bb45 powerpc/64/kuap: Conditionally restore AMR in interrupt exit 
The AMR update is made conditional on AMR actually changing, which
should be the less common case on most workloads (though kernel page
faults on uaccess could be frequent, this doesn't significantly slow
down that case).

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200429065654.1677541-4-npiggin@gmail.com
2020-05-28 23:24:37 +10:00
..
ptrace powerpc/watchpoint: Use builtin ALIGN*() macros 2020-05-19 00:11:05 +10:00
syscalls asm-generic: fix unistd_32.h generation format 2020-04-07 10:43:42 -07:00
trace powerpc: Add a probe_kernel_read_inst() function 2020-05-19 00:10:37 +10:00
vdso32 powerpc/vdso32: Fallback on getres syscall when clock is unknown 2020-05-11 19:24:29 +10:00
vdso64 .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
align.c powerpc: Define and use get_user_instr() et. al. 2020-05-19 00:10:37 +10:00
asm-offsets.c powerpc/xmon: Move breakpoints to text section 2020-05-19 00:10:36 +10:00
audit.c
btext.c powerpc: Prefer __section and __printf from compiler_attributes.h 2020-03-27 00:16:32 +11:00
cacheinfo.c
cacheinfo.h
compat_audit.c
cpu_setup_6xx.S
cpu_setup_44x.S
cpu_setup_fsl_booke.S powerpc/booke: Spelling s/date/data/ 2019-11-17 01:56:31 -06:00
cpu_setup_pa6t.S
cpu_setup_power.S powerpc/64s: Set reserved PCR bits 2019-09-21 08:36:53 +10:00
cpu_setup_ppc970.S
cputable.c powerpc/40x: Remove support for IBM 405GP 2020-05-28 23:24:36 +10:00
crash_dump.c powerpc: Add prefixed instructions to instruction data type 2020-05-19 00:10:39 +10:00
dawr.c powerpc/watchpoint: Disable all available watchpoints when !dawr_force_enable 2020-05-19 00:11:05 +10:00
dbell.c KVM: PPC: Book3S HV: use smp_mb() when setting/clearing host_ipi flag 2019-09-24 12:46:26 +10:00
dma-iommu.c powerpc updates for 5.4 2019-09-20 11:48:06 -07:00
dma-mask.c
dma-swiotlb.c
dt_cpu_ftrs.c powerpc/64: Setup a paca before parsing device tree etc. 2020-03-25 12:09:37 +11:00
early_32.c powerpc/fsl_booke/32: implement KASLR infrastructure 2019-11-13 19:27:40 +11:00
eeh.c powerpc/eeh: Release EEH device state synchronously 2020-05-18 21:58:44 +10:00
eeh_cache.c powerpc/eeh_cache: Don't use pci_dn when inserting new ranges 2020-01-23 21:31:18 +11:00
eeh_dev.c
eeh_driver.c powerpc/eeh: Fix deadlock handling dead PHB 2020-02-17 12:47:05 +11:00
eeh_event.c powerpc/eeh: Fix build with STACKTRACE=n 2019-09-14 00:01:14 +10:00
eeh_pe.c powerpc/eeh: Clean up EEH PEs after recovery finishes 2019-09-05 14:22:37 +10:00
eeh_sysfs.c powerpc/eeh_sysfs: Make clearing EEH_DEV_SYSFS saner 2020-01-23 21:31:19 +11:00
entry_32.S powerpc: Remove IBM405 Erratum #77 2020-05-28 23:24:36 +10:00
entry_64.S powerpc/64s/kuap: Restore AMR in fast_interrupt_return 2020-05-07 11:00:41 +10:00
epapr_hcalls.S
epapr_paravirt.c powerpc: Use a datatype for instructions 2020-05-19 00:10:37 +10:00
exceptions-64e.S powerpc/64s: Implement interrupt exit logic in C 2020-04-01 13:42:14 +11:00
exceptions-64s.S Merge branch 'fixes' into next 2020-05-26 22:56:03 +10:00
fadump.c powerpc/fadump: consider reserved ranges while reserving memory 2020-05-04 22:29:58 +10:00
firmware.c
fpu.S powerpc/32s: Enable CONFIG_VMAP_STACK 2020-01-27 22:37:24 +11:00
fsl_booke_entry_mapping.S powerpc/fsl_booke/32: implement KASLR infrastructure 2019-11-13 19:27:40 +11:00
head_8xx.S powerpc/8xx: Map linear memory with huge pages 2020-05-26 22:22:23 +10:00
head_32.h Merge branch 'fixes' into next 2020-03-10 15:16:42 +11:00
head_32.S Revert "powerpc/32s: reorder Linux PTE bits to better match Hash PTE bits." 2020-05-20 22:35:52 +10:00
head_40x.S powerpc/40x: Don't save CR in SPRN_SPRG_SCRATCH6 2020-05-28 23:24:36 +10:00
head_44x.S
head_64.S powerpc/64: Don't initialise init_task->thread.regs 2020-05-15 11:58:54 +10:00
head_booke.h powerpc: Replace _ALIGN_UP() by ALIGN() 2020-05-11 23:15:15 +10:00
head_fsl_booke.S powerpc/32: save DEAR/DAR before calling handle_page_fault 2020-01-26 22:15:09 +11:00
hw_breakpoint.c powerpc/watchpoint: Don't allow concurrent perf and ptrace events 2020-05-19 00:14:45 +10:00
idle.c powerpc/64s: Reimplement power4_idle code in C 2020-01-16 14:59:37 +10:00
idle_6xx.S powerpc/6xx: Fix power_save_ppc32_restore() with CONFIG_VMAP_STACK 2020-02-18 21:31:12 +11:00
idle_book3e.S
idle_book3s.S powerpc/64s: Reimplement power4_idle code in C 2020-01-16 14:59:37 +10:00
idle_e500.S
ima_arch.c powerpc/ima: Fix secure boot rules in ima arch policy 2020-05-07 17:25:54 +10:00
io-workarounds.c powerpc/mm: rework io-workaround invocation. 2019-08-27 13:03:34 +10:00
io.c
iomap.c
iommu.c Merge branch 'topic/ppc-kvm' into next 2019-08-30 09:52:57 +10:00
irq.c powerpc/64s: Fix doorbell wakeup msgclr optimisation 2020-04-03 00:09:53 +11:00
isa-bridge.c
jump_label.c powerpc: Use a datatype for instructions 2020-05-19 00:10:37 +10:00
kgdb.c powerpc: Use a datatype for instructions 2020-05-19 00:10:37 +10:00
kprobes-ftrace.c
kprobes.c powerpc/kprobes: Don't allow breakpoints on suffixes 2020-05-19 00:11:03 +10:00
kvm.c powerpc/kvm: Explicitly mark kvm guest code as __init 2019-09-14 00:04:40 +10:00
kvm_emul.S powerpc/kvm: Add ifdefs around template code 2019-09-14 00:04:40 +10:00
l2cr_6xx.S
legacy_serial.c tty/serial: Migrate 8250_fsl to use has_sysrq 2019-12-18 15:04:42 +01:00
Makefile powerpc/64: make buildable without CONFIG_COMPAT 2020-04-03 00:10:00 +11:00
mce.c powerpc/64s: machine check do not trace real-mode handler 2020-05-19 00:10:34 +10:00
mce_power.c powerpc: Use a function for reading instructions 2020-05-19 00:10:37 +10:00
misc.S powerpc: Rename current_stack_pointer() to current_stack_frame() 2020-03-04 22:44:28 +11:00
misc_32.S powerpc/40x: Remove support for IBM 403GCX 2020-05-28 23:24:35 +10:00
misc_64.S Merge branch 'topic/kaslr-book3e32' into next 2019-11-14 19:23:33 +11:00
module.c
module.lds
module_32.c powerpc: module_[32|64].c: replace swap function with built-in one 2020-05-11 23:15:14 +10:00
module_64.c powerpc: Use a macro for creating instructions from u32s 2020-05-19 00:10:36 +10:00
msi.c
note.S powerpc: Add PowerPC Capabilities ELF note 2019-08-30 09:40:15 +10:00
nvram_64.c powerpc: Replace _ALIGN_UP() by ALIGN() 2020-05-11 23:15:15 +10:00
of_platform.c powerpc/eeh: Make early EEH init pseries specific 2020-03-25 12:09:39 +11:00
optprobes.c powerpc: Add ppc_inst_as_u64() 2020-05-26 23:36:57 +10:00
optprobes_head.S powerpc: Add prefixed instructions to instruction data type 2020-05-19 00:10:39 +10:00
paca.c powerpc/64: Prevent stack protection in early boot 2020-03-25 12:09:38 +11:00
pci-common.c powerpc updates for 5.7 2020-04-05 11:12:59 -07:00
pci-hotplug.c powerpc/eeh: Release EEH device state synchronously 2020-05-18 21:58:44 +10:00
pci_32.c
pci_64.c powerpc: Replace _ALIGN_UP() by ALIGN() 2020-05-11 23:15:15 +10:00
pci_dn.c powerpc/pcidn: Warn when sriov pci_dn management is used incorrectly 2020-01-23 21:31:19 +11:00
pci_of_scan.c powerpc/pci: Remove pcibios_setup_bus_devices() 2020-01-06 16:25:29 +11:00
pmc.c
ppc32.h
ppc_save_regs.S powerpc: Improve ppc_save_regs() 2020-04-04 21:40:57 +11:00
proc_powerpc.c proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
process.c powerpc/watchpoint: Prepare handler to handle more than one watchpoint 2020-05-19 00:14:37 +10:00
prom.c powerpc: Replace _ALIGN_UP() by ALIGN() 2020-05-11 23:15:15 +10:00
prom_init.c powerpc: Replace _ALIGN() by ALIGN() 2020-05-11 23:15:16 +10:00
prom_init_check.sh powerpc/prom_init: Undo relocation before entering secure mode 2019-10-29 15:12:17 +11:00
prom_parse.c
reloc_32.S
reloc_64.S
rtas-proc.c proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
rtas-rtc.c
rtas.c
rtas_flash.c proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
rtas_pci.c
rtasd.c proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
secure_boot.c powerpc: Detect the trusted boot state of the system 2019-11-12 12:25:49 +11:00
security.c powerpc: Use a macro for creating instructions from u32s 2020-05-19 00:10:36 +10:00
secvar-ops.c powerpc/powernv: Add OPAL API interface to access secure variable 2019-11-13 00:33:22 +11:00
secvar-sysfs.c powerpc: expose secure variables to userspace via sysfs 2019-11-13 00:33:22 +11:00
setup-common.c powerpc/40x: Remove support for IBM 403GCX 2020-05-28 23:24:35 +10:00
setup.h powerpc/64: Prevent stack protection in early boot 2020-03-25 12:09:38 +11:00
setup_32.c powerpc/mm: Allocate static page tables for fixmap 2020-05-26 22:22:19 +10:00
setup_64.c Merge branch 'fixes' into next 2020-05-26 22:56:03 +10:00
signal.c powerpc/watchpoint: Convert thread_struct->hw_brk to an array 2020-05-19 00:11:05 +10:00
signal.h powerpc/64/sycall: Implement syscall entry/exit logic in C 2020-04-01 13:42:13 +11:00
signal_32.c powerpc: Use trap metadata to prevent double restart rather than zeroing trap 2020-05-15 11:58:54 +10:00
signal_64.c powerpc: Use trap metadata to prevent double restart rather than zeroing trap 2020-05-15 11:58:54 +10:00
smp-tbsync.c
smp.c powerpc/smp: Use IS_ENABLED() to avoid #ifdef 2020-03-27 01:15:09 +11:00
stacktrace.c powerpc: Rename current_stack_pointer() to current_stack_frame() 2020-03-04 22:44:28 +11:00
suspend.c
swsusp.c
swsusp_32.S
swsusp_64.c
swsusp_asm64.S
swsusp_booke.S
sys_ppc32.c
syscall_64.c powerpc/64/kuap: Conditionally restore AMR in interrupt exit 2020-05-28 23:24:37 +10:00
syscalls.c y2038: syscalls: change remaining timeval to __kernel_old_timeval 2019-11-15 14:38:29 +01:00
sysfs.c powerpc/sysfs: Show idle_purr and idle_spurr for every CPU 2020-04-30 12:35:26 +10:00
systbl.S powerpc/64/sycall: Implement syscall entry/exit logic in C 2020-04-01 13:42:13 +11:00
systbl_chk.sh
tau_6xx.c
time.c Revert "powerpc/64: irq_work avoid interrupt when called with hardware irqs enabled" 2020-04-03 16:55:34 +11:00
tm.S
traps.c powerpc: Support prefixed instructions in alignment handler 2020-05-19 00:11:03 +10:00
ucall.S powerpc/kernel: Add ucall_norets() ultravisor call handler 2019-08-30 09:40:15 +10:00
udbg.c powerpc/udbg: Make it safe to call udbg_printf() always 2019-10-11 19:33:25 +11:00
udbg_16550.c
uprobes.c powerpc: Add ppc_inst_next() 2020-05-26 23:36:51 +10:00
vdso.c powerpc/64: make buildable without CONFIG_COMPAT 2020-04-03 00:10:00 +11:00
vecemu.c powerpc: Define and use get_user_instr() et. al. 2020-05-19 00:10:37 +10:00
vector.S powerpc/64s: Implement interrupt exit logic in C 2020-04-01 13:42:14 +11:00
vmlinux.lds.S powerpc/mm: Don't be too strict with _etext alignment on PPC32 2020-05-26 22:22:22 +10:00
watchdog.c