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linux-st/arch/powerpc/kernel
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Vincenzo Frascino 5522634562 powerpc: Fix vDSO clock_getres() 
clock_getres in the vDSO library has to preserve the same behaviour
of posix_get_hrtimer_res().

In particular, posix_get_hrtimer_res() does:
    sec = 0;
    ns = hrtimer_resolution;
and hrtimer_resolution depends on the enablement of the high
resolution timers that can happen either at compile or at run time.

Fix the powerpc vdso implementation of clock_getres keeping a copy of
hrtimer_resolution in vdso data and using that directly.

Fixes: a7f290dad3 ("[PATCH] powerpc: Merge vdso's and add vdso support to 32 bits kernel")
Cc: stable@vger.kernel.org
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr>
Acked-by: Shuah Khan <skhan@linuxfoundation.org>
[chleroy: changed CLOCK_REALTIME_RES to CLOCK_HRTIMER_RES]
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/a55eca3a5e85233838c2349783bcb5164dae1d09.1575273217.git.christophe.leroy@c-s.fr
2019-12-05 00:13:55 +11:00
..
syscalls
…
trace
powerpc/ftrace: Enable HAVE_FUNCTION_GRAPH_RET_ADDR_PTR
2019-09-18 12:24:55 +10:00
vdso32
powerpc: Fix vDSO clock_getres()
2019-12-05 00:13:55 +11:00
vdso64
powerpc: Fix vDSO clock_getres()
2019-12-05 00:13:55 +11:00
.gitignore
powerpc: improve prom_init_check rule
2019-09-14 00:04:41 +10:00
align.c
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asm-offsets.c
powerpc: Fix vDSO clock_getres()
2019-12-05 00:13:55 +11:00
audit.c
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btext.c
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cacheinfo.c
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cacheinfo.h
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compat_audit.c
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cpu_setup_6xx.S
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cpu_setup_44x.S
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cpu_setup_fsl_booke.S
powerpc/booke: Spelling s/date/data/
2019-11-17 01:56:31 -06:00
cpu_setup_pa6t.S
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cpu_setup_power.S
powerpc/64s: Set reserved PCR bits
2019-09-21 08:36:53 +10:00
cpu_setup_ppc970.S
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cputable.c
powerpc/32s: get rid of CPU_FTR_601 feature
2019-08-28 23:19:33 +10:00
crash_dump.c
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dawr.c
powerpc/watchpoint: Fix length calculation for unaligned target
2019-11-13 16:58:03 +11:00
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
Merge tag 'powerpc-5.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
2019-09-20 11:48:06 -07:00
dma-mask.c
…
dma-swiotlb.c
…
dt_cpu_ftrs.c
powerpc/mm: Fixup tlbie vs mtpidr/mtlpidr ordering issue on POWER9
2019-09-24 20:58:55 +10:00
early_32.c
powerpc/fsl_booke/32: implement KASLR infrastructure
2019-11-13 19:27:40 +11:00
eeh_cache.c
…
eeh_dev.c
…
eeh_driver.c
powerpc/eeh: differentiate duplicate detection message
2019-11-13 16:58:10 +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: Replace GPL boilerplate with SPDX identifiers
2019-11-13 16:58:07 +11:00
eeh.c
powerpc/eeh: Fix eeh eeh_debugfs_break_device() with SRIOV devices
2019-09-27 09:04:17 +10:00
entry_32.S
powerpc/32s: get rid of CPU_FTR_601 feature
2019-08-28 23:19:33 +10:00
entry_64.S
powerpc/book3s64: Fix link stack flush on context switch
2019-11-14 15:37:52 +11:00
epapr_hcalls.S
…
epapr_paravirt.c
…
exceptions-64e.S
powerpc: unify definition of M_IF_NEEDED
2019-11-13 19:27:24 +11:00
exceptions-64s.S
powerpc/64s/exception: Fix kaup -> kuap typo
2019-11-13 16:58:08 +11:00
fadump.c
powerpc/fadump: when fadump is supported register the fadump sysfs files.
2019-11-13 16:58:11 +11:00
firmware.c
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fpu.S
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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: set STACK_END_MAGIC earlier on the init_stack
2019-08-28 11:31:18 +10:00
head_32.h
powerpc/32: replace LOAD_MSR_KERNEL() by LOAD_REG_IMMEDIATE()
2019-08-27 13:03:36 +10:00
head_32.S
powerpc/32s: use CONFIG_PPC_BOOK3S_601 instead of reading PVR
2019-08-28 23:19:33 +10:00
head_40x.S
…
head_44x.S
…
head_64.S
powerpc/prom: convert PROM_BUG() to standard trap
2019-08-28 11:31:18 +10:00
head_booke.h
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head_fsl_booke.S
powerpc/kasan: Fix boot failure with RELOCATABLE && FSL_BOOKE
2019-12-05 00:11:43 +11:00
hw_breakpoint.c
powerpc/watchpoint: Don't ignore extraneous exceptions blindly
2019-11-13 16:58:03 +11:00
idle_6xx.S
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idle_book3e.S
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idle_book3s.S
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idle_e500.S
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idle_power4.S
…
idle.c
…
ima_arch.c
powerpc/ima: Indicate kernel modules appended signatures are enforced
2019-11-12 12:25:50 +11:00
io-workarounds.c
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io.c
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iomap.c
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iommu.c
Merge branch 'topic/ppc-kvm' into next
2019-08-30 09:52:57 +10:00
irq.c
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isa-bridge.c
…
jump_label.c
…
kgdb.c
…
kprobes-ftrace.c
…
kprobes.c
…
kvm_emul.S
powerpc/kvm: Add ifdefs around template code
2019-09-14 00:04:40 +10:00
kvm.c
powerpc/kvm: Explicitly mark kvm guest code as __init
2019-09-14 00:04:40 +10:00
l2cr_6xx.S
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legacy_serial.c
…
Makefile
powerpc/prom_init: Use -ffreestanding to avoid a reference to bcmp
2019-11-25 21:45:43 +11:00
mce_power.c
powerpc/mm/mce: Keep irqs disabled during lockless page table walk
2019-09-19 21:24:59 +10:00
mce.c
powerpc/64s/pseries: machine check convert to use common event code
2019-08-30 10:32:35 +10:00
misc_32.S
powerpc/32: Split kexec low level code out of misc_32.S
2019-11-21 15:41:34 +11:00
misc_64.S
Merge branch 'topic/kaslr-book3e32' into next
2019-11-14 19:23:33 +11:00
misc.S
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module_32.c
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module_64.c
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module.c
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module.lds
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msi.c
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note.S
powerpc: Add PowerPC Capabilities ELF note
2019-08-30 09:40:15 +10:00
nvram_64.c
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of_platform.c
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optprobes_head.S
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optprobes.c
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paca.c
powerpc/pseries/svm: Use shared memory for LPPACA structures
2019-08-30 09:55:40 +10:00
pci_32.c
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pci_64.c
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pci_dn.c
powerpc/eeh: Fix race when freeing PDNs
2019-09-05 14:22:37 +10:00
pci_of_scan.c
powerpc/of/pci: Rewrite pci_parse_of_flags
2019-08-29 20:24:05 +10:00
pci-common.c
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pci-hotplug.c
powerpc/eeh: Fix race when freeing PDNs
2019-09-05 14:22:37 +10:00
pmc.c
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ppc32.h
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ppc_save_regs.S
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proc_powerpc.c
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process.c
powerpc/watchpoint: Fix length calculation for unaligned target
2019-11-13 16:58:03 +11:00
prom_init_check.sh
powerpc/prom_init: Undo relocation before entering secure mode
2019-10-29 15:12:17 +11:00
prom_init.c
powerpc/pseries: Enable support for ibm,drc-info property
2019-11-13 16:58:00 +11:00
prom_parse.c
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prom.c
powerpc/fadump: add support to preserve crash data on FADUMP disabled kernel
2019-09-14 00:04:45 +10:00
ptrace32.c
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ptrace.c
powerpc/watchpoint: Fix ptrace code that muck around with address/len
2019-11-13 16:58:03 +11:00
reloc_32.S
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reloc_64.S
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rtas_flash.c
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rtas_pci.c
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rtas-proc.c
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rtas-rtc.c
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rtas.c
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rtasd.c
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secure_boot.c
powerpc: Detect the trusted boot state of the system
2019-11-12 12:25:49 +11:00
security.c
Merge tag 'powerpc-5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
2019-11-30 14:35:43 -08:00
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_32.c
powerpc: Add support for GENERIC_EARLY_IOREMAP
2019-11-19 19:38:38 +11:00
setup_64.c
powerpc: Add support for GENERIC_EARLY_IOREMAP
2019-11-19 19:38:38 +11:00
setup-common.c
powerpc/fsl_booke/kaslr: dump out kernel offset information on panic
2019-11-13 19:27:51 +11:00
setup.h
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signal_32.c
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signal_64.c
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signal.c
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signal.h
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smp-tbsync.c
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smp.c
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stacktrace.c
powerpc/ftrace: Enable HAVE_FUNCTION_GRAPH_RET_ADDR_PTR
2019-09-18 12:24:55 +10:00
suspend.c
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swsusp_32.S
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swsusp_64.c
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swsusp_asm64.S
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swsusp_booke.S
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swsusp.c
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sys_ppc32.c
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syscalls.c
y2038: syscalls: change remaining timeval to __kernel_old_timeval
2019-11-15 14:38:29 +01:00
sysfs.c
powerpc/pseries/svm: Export guest SVM status to user space via sysfs
2019-08-30 09:55:41 +10:00
systbl_chk.sh
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systbl.S
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tau_6xx.c
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time.c
powerpc: Fix vDSO clock_getres()
2019-12-05 00:13:55 +11:00
tm.S
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traps.c
powerpc/book3s/mm: Update Oops message to print the correct translation in use
2019-11-13 16:58:07 +11:00
ucall.S
powerpc/kernel: Add ucall_norets() ultravisor call handler
2019-08-30 09:40:15 +10:00
udbg_16550.c
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udbg.c
powerpc/udbg: Make it safe to call udbg_printf() always
2019-10-11 19:33:25 +11:00
uprobes.c
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vdso.c
powerpc/32s: drop CPU_FTR_USE_RTC feature
2019-08-28 23:19:33 +10:00
vecemu.c
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vector.S
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vmlinux.lds.S
powerpc: Move EXCEPTION_TABLE to RO_DATA segment
2019-11-04 18:30:13 +01:00
watchdog.c
…