AuxXxilium/linux_dsm_epyc7002
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dbcf929c00
linux_dsm_epyc7002/arch/powerpc/include/asm
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David Gibson dbcf929c00 powerpc/pseries: Add support for hash table resizing 
This adds support for using two hypercalls to change the size of the
main hash page table while running as a PAPR guest. For now these
hypercalls are only in experimental qemu versions.

The interface is two part: first H_RESIZE_HPT_PREPARE is used to
allocate and prepare the new hash table. This may be slow, but can be
done asynchronously. Then, H_RESIZE_HPT_COMMIT is used to switch to the
new hash table. This requires that no CPUs be concurrently updating the
HPT, and so must be run under stop_machine().

This also adds a debugfs file which can be used to manually control
HPT resizing or testing purposes.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Paul Mackerras <paulus@samba.org>
[mpe: Rename the debugfs file to "hpt_order"]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-02-10 13:27:55 +11:00
..
book3s powerpc/pseries: Add support for hash table resizing 2017-02-10 13:27:55 +11:00
nohash powerpc/mm: Fix little-endian 4K hugetlb 2017-01-18 11:58:50 +11:00
8xx_immap.h
accounting.h powerpc32: provide VIRT_CPU_ACCOUNTING 2016-07-09 01:43:50 -05:00
agp.h
archrandom.h powerpc: Use hardware RNG for arch_get_random_seed_* not arch_get_random_* 2015-07-23 19:52:03 +10:00
asm-compat.h powerpc/ebpf/jit: Implement JIT compiler for extended BPF 2016-06-24 15:17:57 +10:00
asm-offsets.h
asm-prototypes.h Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
async_tx.h
atomic.h powerpc: Remove static branch prediction in atomic{, 64}_add_unless 2016-10-04 16:13:13 +11:00
backlight.h
barrier.h powerpc: define __smp_xxx 2016-01-12 20:46:53 +02:00
bitops.h
bootx.h
btext.h
bug.h
bugs.h
cache.h powerpc: Add new cache geometry aux vectors 2017-02-06 19:46:04 +11:00
cacheflush.h powerpc: Move cpu_has_feature() to a separate file 2016-08-01 11:15:03 +10:00
cell-pmu.h
cell-regs.h
checksum.h powerpc/64: Use optimized checksum routines on little-endian 2017-01-25 13:34:18 +11:00
cmpxchg.h powerpc: Fix __cmpxchg() to take a volatile ptr again 2016-11-25 14:07:50 +11:00
code-patching.h powerpc: Define and use PPC64_ELF_ABI_v2/v1 2016-06-14 13:58:27 +10:00
compat.h powerpc/kernel: Add SIG_SYS support for compat tasks 2015-07-29 11:56:13 +10:00
context_tracking.h
copro.h
cpm1.h
cpm2.h
cpm.h QE: Move QE from arch/powerpc to drivers/soc 2015-12-22 17:12:56 -06:00
cpu_has_feature.h powerpc/kernel: Fix size of NUM_CPU_FTR_KEYS on 32-bit 2016-09-12 12:48:28 +10:00
cpufeature.h powerpc: Add module autoloading based on CPU features 2016-07-21 20:33:57 +10:00
cpuidle.h powernv: Pass PSSCR value and mask to power9_idle_stop 2017-01-31 08:32:13 +11:00
cputable.h powerpc/8xx: add dedicated machine check handler 2016-09-25 02:38:55 -05:00
cputhreads.h powerpc: cputhreads: Add missing include file 2016-08-22 11:09:33 +10:00
cputime.h sched/cputime, powerpc: Remove cputime_to_scaled() 2016-11-15 09:51:04 +01:00
current.h
dbdma.h powerpc: Move Power Macintosh drivers to generic byteswappers 2015-03-23 14:29:40 +11:00
dbell.h powerpc: Move cpu_has_feature() to a separate file 2016-08-01 11:15:03 +10:00
dcr-generic.h
dcr-mmio.h
dcr-native.h powerpc: Move cpu_has_feature() to a separate file 2016-08-01 11:15:03 +10:00
dcr-regs.h
dcr.h
debug.h powerpc: Change places using CONFIG_KEXEC to use CONFIG_KEXEC_CORE instead. 2016-11-30 23:15:11 +11:00
delay.h
device.h powerpc/iommu: Remove dma_data union 2015-07-13 10:10:54 +10:00
disassemble.h KVM: PPC: e500: Emulate TMCFG0 TMRN register 2015-10-15 15:58:16 +11:00
dma-mapping.h dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
dma.h
edac.h EDAC: Cleanup atomic_scrub mess 2015-05-28 15:31:53 +02:00
eeh_event.h
eeh.h powerpc/pci: Delay populating pdn 2016-06-21 15:30:56 +10:00
ehv_pic.h
elf.h powerpc: Add new cache geometry aux vectors 2017-02-06 19:46:04 +11:00
emergency-restart.h
emulated_ops.h
epapr_hcalls.h
exception-64e.h powerpc/e6500: hw tablewalk: make sure we invalidate and write to the same tlb entry 2015-10-27 18:14:40 -05:00
exception-64s.h powerpc: Fix exception vector build with 2.23 era binutils 2016-11-12 20:12:49 +11:00
exec.h
fadump.h powerpc/fadump: Set core e_flags using kernel's ELF ABI version 2016-09-13 17:36:01 +10:00
fb.h
feature-fixups.h powerpc/32: Fix crash during static key init 2016-08-10 19:41:58 +10:00
firmware.h powerpc/pseries: Add hypercall wrappers for hash page table resizing 2017-02-09 21:45:48 +11:00
fixmap.h powerpc/8xx: Fix vaddr for IMMR early remap 2016-07-09 02:02:48 -05:00
floppy.h
fs_pd.h
fsl_85xx_cache_sram.h
fsl_gtm.h
fsl_hcalls.h
fsl_lbc.h uio: uio_fsl_elbc_gpcm: new driver 2015-01-12 05:04:13 -08:00
fsl_pamu_stash.h iommu/fsl: Various cleanups 2015-02-03 18:47:18 +01:00
fsl_pm.h powerpc/rcpm: add RCPM driver 2016-03-04 23:50:27 -06:00
ftrace.h powerpc: Define and use PPC64_ELF_ABI_v2/v1 2016-06-14 13:58:27 +10:00
futex.h powerpc: EX_TABLE macro for exception tables 2016-11-14 11:11:51 +11:00
grackle.h
hardirq.h
head-64.h powerpc/64s: Use (start, size) rather than (start, end) for exception handlers 2017-02-07 07:26:57 +11:00
heathrow.h
highmem.h kmap_atomic_to_page() has no users, remove it 2015-11-09 15:11:24 -08:00
hmi.h powerpc: move hmi.c to arch/powerpc/kvm/ 2016-09-09 16:18:07 +10:00
hugetlb.h powerpc/mm: Fix little-endian 4K hugetlb 2017-01-18 11:58:50 +11:00
hvcall.h powerpc/pseries: Add hypercall wrappers for hash page table resizing 2017-02-09 21:45:48 +11:00
hvconsole.h
hvcserver.h
hvsi.h
hw_breakpoint.h
hw_irq.h powerpc/8xx: use SPRN_EIE and SPRN_EID to enable/disable interrupts 2016-09-25 02:38:53 -05:00
hydra.h powerpc: Fix misspellings in comments. 2016-03-01 19:27:20 +11:00
i8259.h
ibmebus.h
icswx.h crypto: nx-842 - Mask XERS0 bit in return value 2015-12-17 16:42:12 +08:00
ide.h
ima.h powerpc: ima: send the kexec buffer to the next kernel 2016-12-20 09:48:44 -08:00
immap_cpm2.h
io_event_irq.h
io-defs.h
io-workarounds.h
io.h powerpc: EX_TABLE macro for exception tables 2016-11-14 11:11:51 +11:00
iommu.h dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
ipic.h
irq_work.h powerpc: Re-enable dynticks 2015-02-23 14:52:04 +11:00
irq.h
irqflags.h
isa-bridge.h powerpc: Add support for non-PCI ISA bridges 2017-01-31 13:54:17 +11:00
jump_label.h powerpc updates for 4.8 #2 2016-08-05 09:00:54 -04:00
Kbuild ppc: move exports to definitions 2016-08-07 23:50:09 -04:00
kdebug.h
kdump.h
kexec.h powerpc: ima: send the kexec buffer to the next kernel 2016-12-20 09:48:44 -08:00
keylargo.h
kgdb.h
kmap_types.h
kprobes.h powerpc/kprobes: Invoke handlers directly 2016-11-23 22:56:25 +11:00
kvm_asm.h KVM: PPC: Book3S HV: Enable hypervisor virtualization interrupts while in guest 2016-11-24 09:24:23 +11:00
kvm_book3s_32.h
kvm_book3s_64.h KVM: PPC: Book3S: Remove duplicate setting of the B field in tlbie 2016-09-27 15:14:29 +10:00
kvm_book3s_asm.h powerpc/powernv: Add platform support for stop instruction 2016-07-15 20:18:41 +10:00
kvm_book3s.h KVM: PPC: Book3S: Treat VTB as a per-subcore register, not per-thread 2016-09-27 14:41:39 +10:00
kvm_booke_hv_asm.h
kvm_booke.h KVM: PPC: Book3S: correct width in XER handling 2015-08-22 11:16:19 +02:00
kvm_fpu.h
kvm_host.h KVM: PPC: Decrease the powerpc default halt poll max value 2016-11-28 11:48:47 +11:00
kvm_para.h
kvm_ppc.h KVM: PPC: Book3S: Move prototypes for KVM functions into kvm_ppc.h 2016-12-01 14:03:46 +11:00
libata-portmap.h libata: remove unused definitions from <asm/libata-portmap.h> 2016-09-22 11:50:19 -04:00
linkage.h powerpc: Define and use PPC64_ELF_ABI_v2/v1 2016-06-14 13:58:27 +10:00
livepatch.h powerpc/livepatch: Add livepatch stack to struct thread_info 2016-04-14 15:47:06 +10:00
local.h
lppaca.h
lv1call.h
machdep.h powerpc: Change places using CONFIG_KEXEC to use CONFIG_KEXEC_CORE instead. 2016-11-30 23:15:11 +11:00
macio.h
mc146818rtc.h
mce.h
mediabay.h
mm-arch-hooks.h powerpc/mm: tracking vDSO remap 2015-06-24 17:49:41 -07:00
mman.h powerpc updates for 4.8 #2 2016-08-05 09:00:54 -04:00
mmu_context.h powerpc/iommu: Stop using @current in mm_iommu_xxx 2016-12-02 14:38:29 +11:00
mmu-8xx.h powerpc/8xx: Implement support of hugepages 2016-12-09 22:49:07 -06:00
mmu-40x.h
mmu-44x.h
mmu-book3e.h powerpc/64/kexec: Fix MMU cleanup on radix 2016-09-23 07:54:17 +10:00
mmu.h powerpc/mm: Add MMU_FTR_KERNEL_RO to possible feature mask 2017-02-07 16:29:55 +11:00
mmzone.h powerpc: implement arch_reserved_kernel_pages 2016-10-07 18:46:28 -07:00
module.h powerpc: Build-time sort the exception table 2016-11-14 11:11:51 +11:00
mpc5xxx.h
mpc6xx.h
mpc52xx_psc.h powerpc: mpc512x: drop bogus and unused psc register bit definitions 2015-10-22 16:06:08 +02:00
mpc52xx.h powerpc: Make ppc_md.{halt, restart} __noreturn 2016-07-14 21:12:06 +10:00
mpc85xx.h powerpc/fsl-booke: Add T4080 SVR value 2015-03-31 22:23:17 -05:00
mpc5121.h powerpc/512x: add LocalPlus Bus FIFO device driver 2015-10-22 15:19:40 +02:00
mpc8260.h
mpic_msgr.h powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
mpic_timer.h
mpic.h powerpc/mpic: Add get_version API both for internal and external use 2015-03-23 19:51:17 -05:00
msi_bitmap.h powerpc/msi: Free the bitmap if it was slab allocated 2015-10-05 21:32:50 +11:00
nmi.h powerpc: Add ppc64 hard lockup detector support 2015-04-11 20:49:27 +10:00
nvram.h powerpc/nvram: Move generic code for nvram and pstore 2015-03-23 14:05:49 +11:00
ohare.h
opal-api.h powerpc/powernv: Initialise nest mmu 2017-01-30 20:24:33 +11:00
opal.h powerpc/powernv: Initialise nest mmu 2017-01-30 20:24:33 +11:00
oprofile_impl.h
paca.h powerpc: move hmi.c to arch/powerpc/kvm/ 2016-09-09 16:18:07 +10:00
page_32.h powerpc32: Remove clear_pages() and define clear_page() inline 2016-03-11 17:20:11 -06:00
page_64.h powerpc/64: Clean up ppc64_caches using a struct per cache 2017-02-06 19:46:04 +11:00
page.h powerpc/mm: Fix little-endian 4K hugetlb 2017-01-18 11:58:50 +11:00
parport.h powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
pasemi_dma.h
pci-bridge.h powerpc: Move isa bridge definitions to separate include 2017-01-31 13:54:17 +11:00
pci.h PCI: Unify pci_resource_to_user() declarations 2016-06-17 14:43:34 -05:00
percpu.h
perf_event_fsl_emb.h
perf_event_server.h powerpc/perf: Use MSR to report privilege level on P9 DD1 2017-01-18 16:15:58 +11:00
perf_event.h
pgalloc.h powerpc/mm: Copy pgalloc (part 2) 2016-05-11 21:53:49 +10:00
pgtable-be-types.h powerpc/mm: Fix little-endian 4K hugetlb 2017-01-18 11:58:50 +11:00
pgtable-types.h powerpc/mm: Fix little-endian 4K hugetlb 2017-01-18 11:58:50 +11:00
pgtable.h powerpc: port 64 bits pgtable_cache to 32 bits 2016-12-09 22:48:01 -06:00
plpar_wrappers.h powerpc/pseries: Add hypercall wrappers for hash page table resizing 2017-02-09 21:45:48 +11:00
pmac_feature.h powerpc: Various typo fixes 2016-06-14 13:58:26 +10:00
pmac_low_i2c.h
pmac_pfunc.h
pmc.h
pmi.h
pnv-pci.h powerpc updates for 4.9 2016-10-07 20:19:31 -07:00
powernv.h powerpc/powernv: Initialise nest mmu 2017-01-30 20:24:33 +11:00
ppc4xx_ocm.h
ppc4xx.h powerpc: Make ppc_md.{halt, restart} __noreturn 2016-07-14 21:12:06 +10:00
ppc_asm.h powerpc: Make _ASM_NOKPROBE_SYMBOL a noop when KPROBES not defined 2016-11-14 11:11:51 +11:00
ppc-opcode.h powerpc: Ignore reserved field in DCSR and PVR reads and writes 2017-01-20 15:21:35 +11:00
ppc-pci.h powerpc/eeh: Refactor EEH PE reset functions 2016-11-22 11:57:08 +11:00
probes.h
processor.h powernv: Pass PSSCR value and mask to power9_idle_stop 2017-01-31 08:32:13 +11:00
prom.h powerpc/prom: Switch to using structs for ibm_architecture_vec 2016-11-30 23:19:59 +11:00
ps3.h powerpc/64: Move MMU backend selection out of platform code 2016-07-21 18:56:38 +10:00
ps3av.h powerpc: Various typo fixes 2016-06-14 13:58:26 +10:00
ps3gpu.h
ps3stor.h
pte-common.h powerpc: Various typo fixes 2016-06-14 13:58:26 +10:00
ptrace.h powerpc: Define and use PPC64_ELF_ABI_v2/v1 2016-06-14 13:58:27 +10:00
reg_8xx.h powerpc/8xx: Implement support of hugepages 2016-12-09 22:49:07 -06:00
reg_a2.h
reg_booke.h powerpc: Fix misspellings in comments. 2016-03-01 19:27:20 +11:00
reg_fsl_emb.h
reg.h powerpc/mm: Fixup wrong LPCR_VRMASD value 2017-01-25 13:34:19 +11:00
rheap.h
rio.h
rtas.h powerpc/pseries: Introduce memory hotplug READD operation 2017-02-02 16:57:39 +11:00
runlatch.h
scom.h
seccomp.h powerpc: switch to using asm-generic for seccomp.h 2015-04-17 09:04:10 -04:00
sections.h powerpc: Define and use PPC64_ELF_ABI_v2/v1 2016-06-14 13:58:27 +10:00
serial.h
setjmp.h
setup.h powerpc: Put exception configuration in a common place 2016-07-21 18:56:31 +10:00
sfp-machine.h
shmparam.h
signal.h powerpc: signals: Stop using current in signal code 2016-10-04 16:43:07 +11:00
smp.h powerpc: Change places using CONFIG_KEXEC to use CONFIG_KEXEC_CORE instead. 2016-11-30 23:15:11 +11:00
smu.h powerpc/pmac: Remove early allocation of the SMU command buffer 2016-07-21 18:56:38 +10:00
sparsemem.h
spinlock_types.h
spinlock.h locking/core, powerpc: Implement vcpu_is_preempted(cpu) 2016-11-22 12:48:06 +01:00
spu_csa.h powerpc/cell: Drop support for 64K local store on 4K kernels 2015-08-18 19:29:49 +10:00
spu_info.h
spu_priv1.h
spu.h
sstep.h
stackprotector.h powerpc: Initial stack protector (-fstack-protector) support 2016-11-23 22:57:15 +11:00
string.h powerpc: Remove assembly versions of strcpy, strcat, strlen and strcmp 2016-06-14 13:58:25 +10:00
swab.h powerpc: Remove unused st_le*() and ld_le* functions 2015-03-24 13:33:52 +11:00
swiotlb.h
switch_to.h powerpc/ptrace: Fix coredump since ptrace TM changes 2016-08-10 16:34:20 +10:00
synch.h powerpc: Factor do_feature_fixup calls 2016-07-21 18:51:42 +10:00
syscall.h powerpc: Change syscall_get_nr() to return int 2015-07-29 11:56:13 +10:00
syscalls.h
systbl.h powerpc/kexec: Enable kexec_file_load() syscall 2016-11-30 23:15:27 +11:00
tce.h powerpc/powernv/pci: Remove SWINV constants and obsolete TCE code 2016-07-17 16:42:47 +10:00
termios.h
thread_info.h signal: consolidate {TS,TLF}_RESTORE_SIGMASK code 2016-08-02 19:35:23 -04:00
time.h powerpc: Move cpu_has_feature() to a separate file 2016-08-01 11:15:03 +10:00
timex.h
tlb.h mm: add tlb_remove_check_page_size_change to track page size change 2016-12-12 18:55:07 -08:00
tlbflush.h powerpc/mm: remove flush_tlb_page_nohash 2016-08-01 11:15:13 +10:00
tm.h powerpc: Remove do_load_up_transact_{fpu,altivec} 2016-10-04 20:33:16 +11:00
topology.h sched/topology: Rename topology_thread_cpumask() to topology_sibling_cpumask() 2015-05-27 15:22:15 +02:00
trace_clock.h powerpc/ftrace: add powerpc timebase as a trace clock source 2015-08-06 16:36:23 +10:00
trace.h tracing: Have the reg function allow to fail 2016-12-09 09:13:30 -05:00
tsi108_irq.h
tsi108_pci.h genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
tsi108.h powerpc: Various typo fixes 2016-06-14 13:58:26 +10:00
types.h powerpc: Define and use PPC64_ELF_ABI_v2/v1 2016-06-14 13:58:27 +10:00
uaccess.h powerpc/sparse: Constify the address pointer in __get_user_nosleep() 2017-02-02 16:35:21 +11:00
udbg.h
uic.h
unaligned.h
uninorth.h powerpc: Fix misspellings in comments. 2016-03-01 19:27:20 +11:00
unistd.h powerpc/kexec: Enable kexec_file_load() syscall 2016-11-30 23:15:27 +11:00
uprobes.h
user.h
vdso_datapage.h powerpc: Standardise on NR_syscalls rather than __NR_syscalls. 2015-11-26 22:11:17 +11:00
vdso.h
vga.h powerpc: Move Power Macintosh drivers to generic byteswappers 2015-03-23 14:29:40 +11:00
vio.h remove <asm/scatterlist.h> 2015-05-05 13:35:39 -06:00
word-at-a-time.h powerpc: EX_TABLE macro for exception tables 2016-11-14 11:11:51 +11:00
xics.h powerpc/xics: Properly set Edge/Level type and enable resend 2016-08-09 14:50:18 +10:00
xilinx_intc.h powerpc/virtex: Use generic xilinx irqchip driver 2016-11-29 09:14:50 +00:00
xilinx_pci.h
xmon.h
xor.h powerpc: Move cpu_has_feature() to a separate file 2016-08-01 11:15:03 +10:00