Gautham R. Shenoy bd00a240dc powerpc/powernv: Fix restore of SPRs upon wake up from hypervisor state loss ...

pnv_wakeup_tb_loss() currently expects cr4 to be "eq" if the CPU is
waking up from a complete hypervisor state loss. Hence, it currently
restores the SPR contents only if cr4 is "eq".

However, after commit bcef83a00d ("powerpc/powernv: Add platform
support for stop instruction"), on ISA v3.0 CPUs, the function
pnv_restore_hyp_resource() sets cr4 to contain the result of the
comparison between the state the CPU has woken up from and the first
deep stop state before calling pnv_wakeup_tb_loss().

Thus if the CPU woke up from a state that is deeper than the first
deep stop state, cr4 will have "gt" set and hence, pnv_wakeup_tb_loss()
will fail to restore the SPRs on waking up from such a state.

Fix the code in pnv_wakeup_tb_loss() to restore the SPR states when cr4
is "eq" or "gt".

Fixes: bcef83a00d ("powerpc/powernv: Add platform support for stop instruction")
Signed-off-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Reviewed-by: Shreyas B. Prabhu <shreyasbp@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

2016-09-12 12:45:50 +10:00

..

vdso32

powerpc/vdso: Fix build rules to rebuild vdsos correctly

2016-08-10 23:04:12 +10:00

vdso64

powerpc/vdso: Fix build rules to rebuild vdsos correctly

2016-08-10 23:04:12 +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

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cputable.c

powerpc: Add option to use jump label for mmu_has_feature()

2016-08-01 11:15:06 +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/tm: do not use r13 for tabort_syscall

2016-08-29 12:47:56 +10:00

epapr_hcalls.S

powerpc: Add paravirt idle loop for 64-bit Book-E

2013-03-13 14:19:36 -05:00

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/pseries: PACA save area fix for MCE vs MCE

2016-08-22 11:09:33 +10:00

fadump.c

powerpc/fadump: Fix build error introduced by recent cleanup

2016-07-05 23:49:46 +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

powerpc: Fix interrupt range check on debug exception

2013-05-02 10:31:01 +10:00

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/hw_breakpoint: Fix oops when destroying hw_breakpoint event

2016-03-03 22:06:08 +11:00

ibmebus.c

dma-mapping: use unsigned long for dma_attrs

2016-08-04 08:50:07 -04:00

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: Fix restore of SPRs upon wake up from hypervisor state loss

2016-09-12 12:45:50 +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

powerpc/idle: Convert use of typedef ctl_table to struct ctl_table

2013-07-01 11:10:35 +10:00

io-workarounds.c

powerpc/mm: Differentiate between hugetlb and THP during page walk

2015-10-12 15:30:09 +11:00

io.c

powerpc/powernv: Add PIO accessors for Power8 LPC bus

2013-08-14 14:58:08 +10:00

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: Move cpu_has_feature() to a separate file

2016-08-01 11:15:03 +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: make of_device_ids const

2014-09-25 23:14:46 +10:00

machine_kexec_32.c

…

machine_kexec_64.c

powerpc/mm: Move hash table ops to a separate structure

2016-07-21 18:59:09 +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: move hmi.c to arch/powerpc/kvm/

2016-08-22 11:09:33 +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/32: Get rid of sub_reloc_offset()

2016-06-14 13:58:26 +10:00

misc_64.S

powerpc/mm: Move hash table ops to a separate structure

2016-07-21 18:59:09 +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/module: Only try to generate the ftrace_caller() stub once

2016-03-07 14:53:53 +11:00

msi.c

powerpc: Remove MSI-related PCI controller ops from ppc_md

2015-06-02 11:47:45 +10:00

nvram_64.c

pstore: add lzo/lz4 compression support

2016-06-02 10:59:31 -07:00

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

PCI/MSI: Initialize MSI capability for all architectures

2015-11-24 17:45:18 -06:00

pci-common.c

powerpc/pseries: use pci_host_bridge.release_fn() to kfree(phb)

2016-08-22 11:09:33 +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

proc_powerpc: switch to fixed_size_llseek()

2013-06-29 12:57:50 +04:00

process.c

powerpc/ptrace: Fix coredump since ptrace TM changes

2016-08-10 16:34:20 +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/prom: Fix sub-processor option passed to ibm, client-architecture-support

2016-08-22 11:09:33 +10:00

prom_parse.c

powerpc: of_parse_dma_window should take a __be32 *dma_window

2013-08-14 15:33:26 +10:00

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 coredump since ptrace TM changes

2016-08-10 16:34:20 +10:00

reloc_32.S

powerpc: Don't flush/invalidate the d/icache for an unknown relocation type

2013-07-01 11:10:34 +10:00

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: signals: Discard transaction state from signal frames

2016-08-29 12:48:40 +10:00

signal_64.c

powerpc: signals: Discard transaction state from signal frames

2016-08-29 12:48:40 +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

unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE

2013-05-09 13:46:38 -04:00

syscalls.c

powerpc: Add a proper syscall for switching endianness

2015-03-28 22:03:40 +11:00

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

Merge tag 'rtc-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

2016-08-05 09:48:22 -04:00

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: migrate exception table users off module.h and onto extable.h

2016-08-22 11:09:33 +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

powerpc: Put FP/VSX and VR state into structures

2013-10-11 17:26:49 +11:00

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/32: Remove RELOCATABLE_PPC32

2016-07-19 20:17:07 +10:00