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b970b41ea68ace17f389c8387c1df4a86aa039a0
android_kernel_xiaomi_sm8450/arch/powerpc/kernel
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Benjamin Herrenschmidt b970b41ea6 powerpc/64/kexec: Copy image with MMU off when possible 
Currently we turn the MMU off after copying the image, and we make
sure there is no overlap between the hash table and the target pages
in that case.

That doesn't work for Radix however. In that case, the page tables
are scattered and we can't really enforce that the target of the
image isn't overlapping one of them.

So instead, let's turn the MMU off before copying the image in radix
mode. Thankfully, in radix mode, even under a hypervisor, we know we
don't have the same kind of RMA limitations that hash mode has.

While at it, also turn the MMU off early when using hash in non-LPAR
mode, that way we can get rid of the collision check completely.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Acked-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-09-23 07:54:18 +10:00
..
vdso32
powerpc/vdso: Fix build rules to rebuild vdsos correctly
2016-08-10 23:04:12 +10:00
vdso64
powerpc/vdso64: Drop vdso64as
2016-09-13 17:37:05 +10:00
.gitignore
…
align.c
powerpc: Move cpu_has_feature() to a separate file
2016-08-01 11:15:03 +10:00
asm-offsets.c
powerpc/8xx: Force VIRT_IMMR_BASE to be a positive number
2016-07-09 03:26:53 -05:00
audit.c
…
btext.c
powerpc/mm: Use a helper for finding pte bits mapping I/O area
2016-05-01 18:32:32 +10:00
cacheinfo.c
powerpc: Fix missing L2 cache size in /sys/devices/system/cpu
2015-04-11 20:49:28 +10:00
cacheinfo.h
…
compat_audit.c
…
cpu_setup_6xx.S
powerpc: Various typo fixes
2016-06-14 13:58:26 +10:00
cpu_setup_44x.S
…
cpu_setup_fsl_booke.S
powerpc/cache: add cache flush operation for various e500
2016-03-04 23:44:51 -06:00
cpu_setup_pa6t.S
…
cpu_setup_power.S
powerpc/irq: Add support for HV virtualization interrupts
2016-07-17 16:42:44 +10:00
cpu_setup_ppc970.S
…
cputable.c
powerpc/book3s: Add a cpu table entry for different POWER9 revs
2016-09-13 17:37:09 +10:00
crash_dump.c
powerpc: Remove superfluous bootmem includes
2014-11-10 09:59:26 +11:00
crash.c
powerpc/crash: Rearrange loop condition to avoid out of bounds array access
2016-07-14 20:26:22 +10:00
dbell.c
powerpc/powernv: Fixes for hypervisor doorbell handling
2015-03-20 14:51:53 +11:00
dma-iommu.c
dma-mapping: use unsigned long for dma_attrs
2016-08-04 08:50:07 -04:00
dma-swiotlb.c
powerpc/iommu: Support "hybrid" iommu/direct DMA ops for coherent_mask < dma_mask
2015-07-13 10:10:55 +10:00
dma.c
dma-mapping: use unsigned long for dma_attrs
2016-08-04 08:50:07 -04:00
eeh_cache.c
powerpc/eeh: Fix pr_debug()s in eeh_cache.c
2016-07-08 22:09:50 +10:00
eeh_dev.c
powerpc/pci: Delay populating pdn
2016-06-21 15:30:56 +10:00
eeh_driver.c
Merge tag 'powerpc-4.7-5' into next
2016-07-15 14:57:47 +10:00
eeh_event.c
powerpc: sparse: static-ify some things
2016-04-12 21:05:18 +10:00
eeh_pe.c
powerpc/eeh: fix misleading indentation
2016-04-27 09:19:37 +10:00
eeh_sysfs.c
powerpc/eeh: Fix PE state format
2014-11-27 09:32:58 +11:00
eeh.c
powerpc/eeh: Switch to conventional PCI address output in EEH log
2016-08-09 16:52:03 +10:00
entry_32.S
powerpc32: provide VIRT_CPU_ACCOUNTING
2016-07-09 01:43:50 -05:00
entry_64.S
powerpc/64s: Optimise MSR handling in exception handling
2016-09-20 15:56:45 +10:00
epapr_hcalls.S
…
epapr_paravirt.c
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
2014-06-10 18:54:22 -07:00
exceptions-64e.S
powerpc32: provide VIRT_CPU_ACCOUNTING
2016-07-09 01:43:50 -05:00
exceptions-64s.S
powerpc/64: Optimise syscall entry for virtual, relocatable case
2016-09-20 14:46:05 +10:00
fadump.c
powerpc/fadump: Set core e_flags using kernel's ELF ABI version
2016-09-13 17:36:01 +10:00
firmware.c
…
fpu.S
powerpc: Add the ability to save FPU without giving it up
2016-03-02 23:34:49 +11:00
fsl_booke_entry_mapping.S
powerpc/fsl: Force coherent memory on e500mc derivatives
2015-08-07 23:00:01 -05:00
ftrace.c
powerpc/ftrace: Separate the heuristics for checking call sites
2016-07-21 20:10:37 +10:00
head_8xx.S
powerpc/8xx: add CONFIG_PIN_TLB_IMMR
2016-07-09 02:02:48 -05:00
head_32.S
…
head_40x.S
powerpc: Remove check for CONFIG_SERIAL_TEXT_DEBUG
2014-06-11 16:31:21 +10:00
head_44x.S
powerpc: Fix misspellings in comments.
2016-03-01 19:27:20 +11:00
head_64.S
powerpc/64: Move the content of setup_system() to setup_arch()
2016-07-21 19:14:29 +10:00
head_booke.h
…
head_fsl_booke.S
powerpc/cache: add cache flush operation for various e500
2016-03-04 23:44:51 -06:00
hw_breakpoint.c
powerpc: Use kprobe blacklist for exception handlers
2016-09-19 10:53:54 +10:00
ibmebus.c
powerpc: Remove all usages of NO_IRQ
2016-09-20 20:57:12 +10:00
idle_6xx.S
…
idle_book3e.S
powerpc: No need to use dot symbols when branching to a function
2014-04-23 10:05:16 +10:00
idle_book3s.S
powerpc/powernv: Move IDLE_STATE_ENTER_SEQ macro to cpuidle.h
2016-08-09 14:50:20 +10:00
idle_e500.S
powerpc/e500mc: Remove dead L2 flushing code in idle_e500.S
2015-06-02 21:37:19 -05:00
idle_power4.S
powerpc: No need to use dot symbols when branching to a function
2014-04-23 10:05:16 +10:00
idle.c
…
io-workarounds.c
powerpc/mm: Differentiate between hugetlb and THP during page walk
2015-10-12 15:30:09 +11:00
io.c
…
iomap.c
powerpc: add io{read,write}64 accessors
2016-05-31 16:41:52 +08:00
iommu.c
dma-mapping: use unsigned long for dma_attrs
2016-08-04 08:50:07 -04:00
irq.c
powerpc: Remove all usages of NO_IRQ
2016-09-20 20:57:12 +10:00
isa-bridge.c
powerpc/mm: Use a helper for finding pte bits mapping I/O area
2016-05-01 18:32:32 +10:00
jump_label.c
jump_label: Rename JUMP_LABEL_{EN,DIS}ABLE to JUMP_LABEL_{JMP,NOP}
2015-08-03 11:34:12 +02:00
kgdb.c
powerpc: Fix kgdb on little endian ppc64le
2016-02-18 00:03:26 +11:00
kprobes.c
powerpc: migrate exception table users off module.h and onto extable.h
2016-08-22 11:09:33 +10:00
kvm_emul.S
…
kvm.c
powerpc: Remove redundant breaks
2015-08-06 15:10:20 +10:00
l2cr_6xx.S
…
legacy_serial.c
powerpc: Remove all usages of NO_IRQ
2016-09-20 20:57:12 +10:00
machine_kexec_32.c
…
machine_kexec_64.c
powerpc/64/kexec: Copy image with MMU off when possible
2016-09-23 07:54:18 +10:00
machine_kexec.c
powerpc: Update of_remove_property() call sites to remove null checking
2016-05-11 21:54:04 +10:00
Makefile
powerpc/Makefile: Drop CONFIG_WORD_SIZE for BITS
2016-09-13 17:37:06 +10:00
mce_power.c
powerpc/mm/radix: Fix CONFIG_PPC_MMU_STD_64 typo
2016-05-11 21:53:59 +10:00
mce.c
powerpc/book3s: Fix MCE console messages for unrecoverable MCE.
2016-08-09 19:46:54 +10:00
misc_32.S
powerpc/kernel: Use kprobe blacklist for asm functions
2016-09-19 10:53:55 +10:00
misc_64.S
powerpc/64/kexec: Copy image with MMU off when possible
2016-09-23 07:54:18 +10:00
misc.S
powerpc: Rename __get_SP() to current_stack_pointer()
2014-10-15 11:23:20 +11:00
module_32.c
powerpc/module: Only try to generate the ftrace_caller() stub once
2016-03-07 14:53:53 +11:00
module_64.c
powerpc/modules: Never restore r2 for a mprofile-kernel style mcount() call
2016-07-21 20:10:42 +10:00
module.c
powerpc/sparse: Make a bunch of things static
2016-09-13 17:35:47 +10:00
msi.c
powerpc: Remove MSI-related PCI controller ops from ppc_md
2015-06-02 11:47:45 +10:00
nvram_64.c
powerpc/nvram: Fix an incorrect partition merge
2016-09-20 16:15:42 +10:00
of_platform.c
powerpc/eeh: Do probe on pci_dn
2015-03-24 13:15:52 +11:00
paca.c
powerpc/mm: Convert early cpu/mmu feature check to use the new helpers
2016-08-01 11:15:01 +10:00
pci_32.c
powerpc: Remove more traces of bootmem
2014-11-19 21:41:51 +11:00
pci_64.c
Merge tag 'powerpc-4.7-5' into next
2016-07-15 14:57:47 +10:00
pci_dn.c
powerpc/pci: Fix build with PCI_IOV=y and EEH=n
2016-07-07 16:33:27 +10:00
pci_of_scan.c
powerpc: Remove all usages of NO_IRQ
2016-09-20 20:57:12 +10:00
pci-common.c
powerpc: Remove all usages of NO_IRQ
2016-09-20 20:57:12 +10:00
pci-hotplug.c
powerpc/pci: Don't scan empty slot
2016-05-11 21:54:26 +10:00
pmc.c
…
ppc32.h
…
ppc_ksyms_32.c
powerpc32: Remove clear_pages() and define clear_page() inline
2016-03-11 17:20:11 -06:00
ppc_ksyms.c
powerpc32: move xxxxx_dcache_range() functions inline
2016-03-11 17:20:12 -06:00
ppc_save_regs.S
…
proc_powerpc.c
…
process.c
powerpc/sparse: Add more assembler prototypes
2016-09-13 17:36:58 +10:00
prom_init_check.sh
powerpc: Simplify symbol check in prom_init_check.sh
2014-09-25 23:14:46 +10:00
prom_init.c
powerpc/pasemi: Fix device_type of Nemo SB600 node.
2016-09-13 17:37:08 +10:00
prom_parse.c
…
prom.c
powerpc/mm: Make MMU_FTR_RADIX a MMU family feature
2016-08-01 11:14:57 +10:00
ptrace32.c
powerpc: move debug registers in a structure
2013-10-18 18:44:49 -05:00
ptrace.c
powerpc/ptrace: Fix cppcheck issue in gpr32_set_common/gpr32_get_common()
2016-09-13 17:37:12 +10:00
reloc_32.S
…
reloc_64.S
powerpc: Align p_dyn, p_rela and p_st symbols
2014-03-07 13:50:19 +11:00
rtas_flash.c
powerpc: Fix endianness of flash_block_list in rtas_flash
2014-07-28 11:30:54 +10:00
rtas_pci.c
powerpc: move find_and_init_phbs() to pSeries specific code
2015-04-11 20:49:09 +10:00
rtas-proc.c
powerpc: Various typo fixes
2016-06-14 13:58:26 +10:00
rtas-rtc.c
…
rtas.c
powerpc: Make ppc_md.{halt, restart} __noreturn
2016-07-14 21:12:06 +10:00
rtasd.c
powerpc/pseries: start rtasd before PCI probing
2016-07-08 19:22:15 +10:00
setup_32.c
powerpc/32: Fix crash during static key init
2016-08-10 19:41:58 +10:00
setup_64.c
powerpc/32: Fix crash during static key init
2016-08-10 19:41:58 +10:00
setup-common.c
powerpc: Move cpu_has_feature() to a separate file
2016-08-01 11:15:03 +10:00
setup.h
powerpc: Merge 32-bit and 64-bit setup_arch()
2016-07-21 19:17:46 +10:00
signal_32.c
powerpc: Set used_(vsr|vr|spe) in sigreturn path when MSR bits are active
2016-09-13 17:37:12 +10:00
signal_64.c
powerpc: Set used_(vsr|vr|spe) in sigreturn path when MSR bits are active
2016-09-13 17:37:12 +10:00
signal.c
powerpc: Fix misspellings in comments.
2016-03-01 19:27:20 +11:00
signal.h
powerpc: Fix misspellings in comments.
2016-03-01 19:27:20 +11:00
smp-tbsync.c
powerpc: Delete non-required instances of include <linux/init.h>
2014-01-15 13:46:44 +11:00
smp.c
powerpc, hotplug: Avoid to touch non-existent cpumasks.
2016-08-22 11:09:33 +10:00
stacktrace.c
powerpc: Implement save_stack_trace_regs() to enable kprobe stack tracing
2016-01-11 14:27:28 +11:00
suspend.c
nosave: consolidate __nosave_{begin,end} in <asm/sections.h>
2014-10-09 22:26:04 -04:00
swsusp_32.S
…
swsusp_64.c
…
swsusp_asm64.S
powerpc: Only save/restore SDR1 if in hypervisor mode
2013-10-31 12:37:29 +11:00
swsusp_booke.S
powerpc/fsl-booke: Use SPRN_SPRGn rather than mfsprg/mtsprg
2014-01-07 19:06:03 -06:00
swsusp.c
powerpc/mm: Abstraction for switch_mmu_context()
2016-05-01 18:33:04 +10:00
sys_ppc32.c
…
syscalls.c
powerpc/sparse: Add more assembler prototypes
2016-09-13 17:36:58 +10:00
sysfs.c
powerpc/sparse: make some things static
2016-06-16 22:23:11 +10:00
systbl_chk.c
powerpc: Standardise on NR_syscalls rather than __NR_syscalls.
2015-11-26 22:11:17 +11:00
systbl_chk.sh
powerpc: Standardise on NR_syscalls rather than __NR_syscalls.
2015-11-26 22:11:17 +11:00
systbl.S
powerpc: Add a proper syscall for switching endianness
2015-03-28 22:03:40 +11:00
tau_6xx.c
…
time.c
powerpc/sparse: Add more assembler prototypes
2016-09-13 17:36:58 +10:00
tm.S
powerpc/tm: Fix stack pointer corruption in __tm_recheckpoint()
2016-07-15 15:00:18 +10:00
trace_clock.c
powerpc/ftrace: add powerpc timebase as a trace clock source
2015-08-06 16:36:23 +10:00
traps.c
powerpc: Use kprobe blacklist for exception handlers
2016-09-19 10:53:54 +10:00
udbg_16550.c
powerpc: Fix bad NULL pointer check in udbg_uart_getc_poll()
2014-11-12 13:47:20 +11:00
udbg.c
powerpc: Remove the celleb support
2015-04-07 17:15:13 +10:00
uprobes.c
uprobes/powerpc: Kill arch_uprobe->ainsn
2013-11-20 16:31:01 +01:00
vdso.c
powerpc/vdso: Add missing include file
2016-08-09 16:52:00 +10:00
vecemu.c
…
vector.S
powerpc: Improve comment explaining why we modify VRSAVE
2016-07-26 14:16:19 +10:00
vio.c
dma-mapping: use unsigned long for dma_attrs
2016-08-04 08:50:07 -04:00
vmlinux.lds.S
powerpc: Ensure .mem(init|exit).text are within _stext/_etext
2016-09-19 10:53:56 +10:00