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Michael Neuling e9bdc3d614 powerpc/tm: Switch out userspace PPR and DSCR sooner 
When we do a treclaim or trecheckpoint we end up running with userspace
PPR and DSCR values.  Currently we don't do anything special to avoid
running with user values which could cause a severe performance
degradation.

This patch moves the PPR and DSCR save and restore around treclaim and
trecheckpoint so that we run with user values for a much shorter period.
More care is taken with the PPR as it's impact is greater than the DSCR.

This is similar to user exceptions, where we run HTM_MEDIUM early to
ensure that we don't run with a userspace PPR values in the kernel.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Cc: <stable@vger.kernel.org> # 3.9+
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-03 17:25:51 +10:00
..
vdso32
powerpc: Convert some mftb/mftbu into mfspr
2013-08-20 19:33:12 -05:00
vdso64
powerpc: Add VDSO version of time
2013-04-23 16:05:05 +10:00
.gitignore
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align.c
powerpc: Never handle VSX alignment exceptions from kernel
2013-08-27 14:44:26 +10:00
asm-offsets.c
powerpc: Remove ksp_limit on ppc64
2013-09-25 14:15:51 +10:00
audit.c
…
btext.c
powerpc/btext: Fix CONFIG_PPC_EARLY_DEBUG_BOOTX on ppc32
2013-08-27 16:01:23 +10:00
cacheinfo.c
powerpc: Make device tree accesses in cache info code endian safe
2013-08-14 15:33:27 +10:00
cacheinfo.h
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clock.c
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compat_audit.c
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cpu_setup_6xx.S
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cpu_setup_44x.S
…
cpu_setup_a2.S
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cpu_setup_fsl_booke.S
powerpc/85xx: Add machine check handler to fix PCIe erratum on mpc85xx
2013-07-30 15:50:07 -05:00
cpu_setup_pa6t.S
…
cpu_setup_power.S
powerpc: Fix TLB cleanup at boot on POWER8
2013-05-24 18:13:44 +10:00
cpu_setup_ppc970.S
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cputable.c
Merge remote-tracking branch 'scott/next' into next
2013-08-09 16:01:40 +10:00
crash_dump.c
powerpc: Remove savemaxmem parameter setup
2013-07-03 16:08:03 -07:00
crash.c
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dbell.c
powerpc: Add accounting for Doorbell interrupts
2013-04-18 15:59:55 +10:00
dma-iommu.c
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dma-swiotlb.c
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dma.c
…
eeh_cache.c
powerpc/eeh: Remove reference to PCI device
2013-07-24 14:18:46 +10:00
eeh_dev.c
powerpc/eeh: Move common part to kernel directory
2013-06-20 17:05:35 +10:00
eeh_driver.c
powerpc/eeh: Fix unbalanced enable for IRQ
2013-07-24 14:18:49 +10:00
eeh_event.c
powerpc/eeh: Use interruptible sleep in keehd
2013-06-25 17:24:41 +10:00
eeh_pe.c
powerpc/eeh: Don't use pci_dev during BAR restore
2013-07-24 14:18:49 +10:00
eeh_sysfs.c
powerpc/eeh: Introdce flag to protect sysfs
2013-07-24 14:18:49 +10:00
eeh.c
powerpc/eeh: Add missing procfs entry for PowerNV
2013-08-09 18:06:47 +10:00
entry_32.S
powerpc/32bit:Store temporary result in r0 instead of r8
2013-06-01 08:29:27 +10:00
entry_64.S
powerpc: Cleanup handling of the DSCR bit in the FSCR register
2013-08-27 15:05:22 +10:00
epapr_hcalls.S
…
epapr_paravirt.c
powerpc/85xx: Move ePAPR paravirt initialization earlier
2013-08-07 18:38:06 -05:00
exceptions-64e.S
powerpc/ppc64: Rename SOFT_DISABLE_INTS with RECONCILE_IRQ_STATE
2013-08-14 14:57:47 +10:00
exceptions-64s.S
Merge branch 'merge' into next
2013-08-27 15:03:30 +10:00
fadump.c
mm/ppc: use common help functions to free reserved pages
2013-04-29 15:54:30 -07:00
firmware.c
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fpu.S
…
fsl_booke_entry_mapping.S
…
ftrace.c
…
head_8xx.S
powerpc: Remove the empty giveup_fpu() function on 32bit kernel
2013-08-14 14:59:50 +10:00
head_32.S
…
head_40x.S
powerpc: Remove the empty giveup_fpu() function on 32bit kernel
2013-08-14 14:59:50 +10:00
head_44x.S
powerpc: Remove the empty giveup_fpu() function on 32bit kernel
2013-08-14 14:59:50 +10:00
head_64.S
powerpc: Align p_toc
2013-08-14 11:50:19 +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: Remove the empty giveup_fpu() function on 32bit kernel
2013-08-14 14:59:50 +10:00
hw_breakpoint.c
powerpc/hw_brk: Fix off by one error when validating DAWR region end
2013-07-02 08:20:49 +10:00
ibmebus.c
ibmebus: convert of_platform_driver to platform_driver
2013-06-12 12:37:26 +01:00
idle_6xx.S
…
idle_book3e.S
…
idle_e500.S
…
idle_power4.S
…
idle_power7.S
…
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: Better split CONFIG_PPC_INDIRECT_PIO and CONFIG_PPC_INDIRECT_MMIO
2013-08-14 14:57:50 +10:00
io.c
powerpc/powernv: Add PIO accessors for Power8 LPC bus
2013-08-14 14:58:08 +10:00
iomap.c
…
iommu.c
powerpc/iommu: Use GFP_KERNEL instead of GFP_ATOMIC in iommu_init_table()
2013-10-03 17:24:44 +10:00
irq.c
powerpc: Remove ksp_limit on ppc64
2013-09-25 14:15:51 +10:00
isa-bridge.c
…
jump_label.c
…
kgdb.c
powerpc/kgdb: Removed kmalloc returned value cast
2013-04-18 13:03:56 +10:00
kprobes.c
powerpc: Move the single step enable code to a generic path
2013-06-20 16:55:09 +10:00
kvm_emul.S
…
kvm.c
mm: enhance free_reserved_area() to support poisoning memory with zero
2013-07-03 16:07:32 -07:00
l2cr_6xx.S
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legacy_serial.c
powerpc: Little endian fixes for legacy_serial.c
2013-08-14 15:33:32 +10:00
machine_kexec_32.c
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machine_kexec_64.c
powerpc/kexec: Fix kexec when using VMX optimised memcpy
2013-05-14 14:36:23 +10:00
machine_kexec.c
…
Makefile
powerpc/pseries: Move lparcfg.c to platforms/pseries
2013-08-28 11:20:54 +10:00
misc_32.S
powerpc: Remove ksp_limit on ppc64
2013-09-25 14:15:51 +10:00
misc_64.S
powerpc/irq: Run softirqs off the top of the irq stack
2013-09-25 14:15:36 +10:00
misc.S
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module_32.c
…
module_64.c
…
module.c
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msi.c
…
nvram_64.c
powerpc/nvram64: Need return the related error code on failure occurs
2013-07-01 11:46:56 +10:00
of_platform.c
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paca.c
powerpc: Fix little endian lppaca, slb_shadow and dtl_entry
2013-08-14 15:33:35 +10:00
pci_32.c
powerpc/pci: Support per-aperture memory offset
2013-05-06 13:40:40 +10:00
pci_64.c
powerpc/pci: Don't use bitfield for force_32bit_msi
2013-08-14 11:50:25 +10:00
pci_dn.c
powerpc: Make PCI device node device tree accesses endian safe
2013-08-14 15:33:31 +10:00
pci_of_scan.c
powerpc: Make OF PCI device tree accesses endian safe
2013-08-14 15:33:30 +10:00
pci-common.c
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
2013-09-06 10:49:42 -07:00
pci-hotplug.c
powerpc/pci: Partial tree hotplug support
2013-07-24 14:18:48 +10:00
pmc.c
…
ppc32.h
…
ppc_ksyms.c
powerpc: Remove the empty giveup_fpu() function on 32bit kernel
2013-08-14 14:59:50 +10:00
ppc_save_regs.S
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proc_powerpc.c
proc_powerpc: switch to fixed_size_llseek()
2013-06-29 12:57:50 +04:00
process.c
powerpc: Remove ksp_limit on ppc64
2013-09-25 14:15:51 +10:00
prom_init_check.sh
powerpc/pmac: Early debug output on screen on 64-bit macs
2013-08-14 14:57:40 +10:00
prom_init.c
powerpc/pseries: Do not start secondaries in Open Firmware
2013-09-25 14:19:00 +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
Device tree core updates for v3.12
2013-09-10 13:53:52 -07:00
ptrace32.c
powerpc: fixing ptrace_get_reg to return an error
2013-04-18 13:03:57 +10:00
ptrace.c
ptrace/powerpc: revert "hw_breakpoints: Fix racy access to ptrace breakpoints"
2013-07-09 10:33:25 -07:00
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
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rtas_flash.c
powerpc/rtas_flash: Fix validate_flash buffer overflow issue
2013-05-14 14:36:26 +10:00
rtas_pci.c
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rtas-proc.c
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rtas-rtc.c
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rtas.c
powerpc: Make RTAS calls endian safe
2013-08-14 15:33:22 +10:00
rtasd.c
powerpc/pseries: Add /proc interface to control topology updates
2013-04-26 16:08:26 +10:00
setup_32.c
powerpc/85xx: Move ePAPR paravirt initialization earlier
2013-08-07 18:38:06 -05:00
setup_64.c
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
2013-09-06 10:49:42 -07:00
setup-common.c
powerpc: More little endian fixes for setup-common.c
2013-08-14 15:33:24 +10:00
setup.h
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signal_32.c
powerpc: Fix VRSAVE handling
2013-08-14 14:57:18 +10:00
signal_64.c
powerpc: Remove the redundant flush_fp_to_thread() in setup_sigcontext()
2013-08-14 14:59:38 +10:00
signal.c
powerpc/tm: Fix userspace stack corruption on signal delivery for active transactions
2013-06-01 08:29:23 +10:00
signal.h
powerpc/tm: Fix userspace stack corruption on signal delivery for active transactions
2013-06-01 08:29:23 +10:00
smp-tbsync.c
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smp.c
powerpc: Export cpu_to_chip_id() to fix build error
2013-09-11 11:39:37 +10:00
stacktrace.c
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suspend.c
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swsusp_32.S
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swsusp_64.c
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swsusp_asm64.S
powerpc: add Book E support to 64-bit hibernation
2013-08-23 19:39:26 -05:00
swsusp_booke.S
powerpc/mpc85xx: invalidate TLB after hibernation resume
2013-07-30 15:50:08 -05:00
swsusp.c
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sys_ppc32.c
unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE
2013-05-09 13:46:38 -04:00
syscalls.c
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sysfs.c
powerpc/sysfs: Disable writing to PURR in guest mode
2013-10-03 17:22:53 +10:00
systbl_chk.c
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systbl_chk.sh
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systbl.S
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tau_6xx.c
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time.c
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
2013-09-06 10:49:42 -07:00
tm.S
powerpc/tm: Switch out userspace PPR and DSCR sooner
2013-10-03 17:25:51 +10:00
traps.c
powerpc: Cleanup handling of the DSCR bit in the FSCR register
2013-08-27 15:05:22 +10:00
udbg_16550.c
powerpc/wsp: Fix early debug build
2013-08-16 10:59:27 +10:00
udbg.c
powerpc: Add a configuration option for early BootX/OpenFirmware debug
2013-06-20 16:55:12 +10:00
uprobes.c
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vdso.c
powerpc: Delete __cpuinit usage from all users
2013-07-01 11:10:36 +10:00
vecemu.c
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vector.S
…
vio.c
powerpc/vio: Fix modalias_show return values
2013-10-03 17:25:16 +10:00
vmlinux.lds.S
powerpc/modules: Module CRC relocation fix causes perf issues
2013-07-24 14:18:43 +10:00