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Ard Biesheuvel 3e8c47e9c1 ARM: 8452/3: PJ4: make coprocessor access sequences buildable in Thumb2 mode 
commit 5008efc83b upstream.

The PJ4 inline asm sequence to write to cp15 cannot be built in Thumb-2
mode, due to the way it performs arithmetic on the program counter, so it
is built in ARM mode instead. However, building C files in ARM mode under
CONFIG_THUMB2_KERNEL is problematic, since the instrumentation performed
by subsystems like ftrace does not expect having to deal with interworking
branches.

Since the sequence in question is simply a poor man's ISB instruction,
let's use a straight 'isb' instead when building in Thumb2 mode. Thumb2
implies V7, so 'isb' should always be supported in that case.

Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-05-14 13:32:54 +02:00
..
boot ARM: dts: at91: sama5d2: add dma properties to UART nodes 2017-03-30 09:35:18 +02:00
common ARM: sa1111: fix pcmcia suspend/resume 2016-10-07 15:23:44 +02:00
configs ARM: Fix broken USB support in multi_v7_defconfig for sunxi devices 2016-01-07 16:02:19 +01:00
crypto crypto: arm/aes-ce - fix for big endian 2017-01-12 11:22:50 +01:00
firmware
include arm/arm64: KVM: Enforce unconditional flush to PoC when mapping to stage-2 2017-03-12 06:37:28 +01:00
kernel ARM: 8452/3: PJ4: make coprocessor access sequences buildable in Thumb2 mode 2017-05-14 13:32:54 +02:00
kvm kvm: arm/arm64: Fix locking for kvm_free_stage2_pgd 2017-04-27 09:09:33 +02:00
lib ARM: 8658/1: uaccess: fix zeroing of 64-bit get_user() 2017-02-23 17:43:09 +01:00
mach-alpine
mach-asm9260
mach-at91 ARM: at91: pm: cpu_idle: switch DDR to power-down mode 2017-03-30 09:35:18 +02:00
mach-axxia
mach-bcm ARM: SoC platform updates for v4.4 2015-11-10 14:56:23 -08:00
mach-berlin arm: berlin: add CPU hotplug support 2015-10-15 21:14:28 +02:00
mach-clps711x
mach-cns3xxx CNS3xxx: Fix PCI cns3xxx_write_config() 2016-05-11 11:21:11 +02:00
mach-davinci ARM: davinci: da850: don't add emac clock to lookup table twice 2017-01-12 11:22:43 +01:00
mach-digicolor ARM: digicolor: select pinctrl/gpio driver 2015-10-15 22:27:30 +02:00
mach-dove ARM: dove: Fix legacy get_irqnr_and_base 2015-11-25 14:59:12 +00:00
mach-ebsa110
mach-efm32
mach-ep93xx
mach-exynos ARM: EXYNOS: Properly skip unitialized parent clock in power domain on 2016-05-11 11:21:14 +02:00
mach-footbridge genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
mach-gemini ARM: gemini: remove unnecessary mdio-gpio includes 2015-10-21 19:50:43 -07:00
mach-highbank
mach-hisi
mach-imx ARM: imx6: add missing BM_CLPCR_BYPASS_PMIC_READY setting for imx6sx 2016-09-24 10:07:39 +02:00
mach-integrator
mach-iop13xx genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
mach-iop32x
mach-iop33x
mach-ixp4xx ARM: ixp4xx: fix read{b,w,l} return types 2015-12-01 23:45:30 +01:00
mach-keystone ARM: keystone: Update compatible to have SoC specific matches 2015-10-06 09:51:08 -07:00
mach-ks8695
mach-lpc18xx
mach-lpc32xx genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
mach-mediatek ARM: SoC platform updates for v4.4 2015-11-10 14:56:23 -08:00
mach-meson ARM: meson: Enable Meson8b SoCs 2015-10-08 17:22:11 +02:00
mach-mmp
mach-moxart
mach-mv78xx0
mach-mvebu ARM: mvebu: fix HW I/O coherency related deadlocks 2016-07-27 09:47:39 -07:00
mach-mxs
mach-netx genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
mach-nomadik
mach-nspire
mach-omap1 ARM: OMAP1: Remove board support for VoiceBlue board 2015-10-12 10:36:55 -07:00
mach-omap2 ARM: OMAP2+: timer: add probe for clocksources 2017-05-02 21:19:47 -07:00
mach-orion5x ARM: orion5x: Fix legacy get_irqnr_and_base 2015-11-25 15:01:00 +00:00
mach-picoxcell
mach-prima2 ARM: prima2: always enable reset controller 2016-05-04 14:48:53 -07:00
mach-pxa ARM: pxa: pxa_cplds: fix interrupt handling 2016-10-31 04:14:01 -06:00
mach-qcom ARM: Remove __ref on hotplug cpu die path 2015-10-22 09:55:03 -07:00
mach-realview net: smc91x: fix SMC accesses 2016-09-30 10:18:37 +02:00
mach-rockchip clocksource: cosmetic: Drop OF 'dependency' from symbols 2015-10-01 02:18:39 +02:00
mach-rpc genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
mach-s3c24xx cpufreq: s3c24xx: Do not mark s3c2410_plls_add as __init 2015-11-27 10:10:32 +09:00
mach-s3c64xx ASoC: samsung: pass DMA channels as pointers 2016-04-12 09:08:32 -07:00
mach-s5pv210
mach-sa1100 ARM: sa1100: clear reset status prior to reboot 2016-10-07 15:23:43 +02:00
mach-shmobile ARM: shmobile: fix regulator quirk for Gen2 2016-10-07 15:23:43 +02:00
mach-socfpga ARM: SoCFPGA: Fix secondary CPU startup in thumb2 kernel 2016-05-11 11:21:14 +02:00
mach-spear ARM: SoC cleanups for v4.4 2015-11-10 14:48:36 -08:00
mach-sti
mach-stm32
mach-sunxi ARM: SoC platform updates for v4.4 2015-11-10 14:56:23 -08:00
mach-tegra ARM: SoC platform updates for v4.4 2015-11-10 14:56:23 -08:00
mach-u300 spi: Updates for v4.4 2015-11-05 13:15:12 -08:00
mach-uniphier ARM: uniphier: rework SMP operations to use trampoline code 2015-10-27 09:20:53 +09:00
mach-ux500 ARM: ux500: fix prcmu_is_cpu_in_wfi() calculation 2017-01-26 08:23:49 +01:00
mach-versatile
mach-vexpress ARM: Remove __ref on hotplug cpu die path 2015-10-22 09:55:03 -07:00
mach-vt8500
mach-w90x900
mach-zx ARM: zx: only build power domain code when CONFIG_PM=y 2015-11-19 16:16:45 +01:00
mach-zynq ARM: zynq: Reserve correct amount of non-DMA RAM 2017-01-15 13:41:36 +01:00
mm ARM: 8642/1: LPAE: catch pending imprecise abort on unmask 2017-02-14 15:22:51 -08:00
net ARM: net: bpf: fix zero right shift 2016-01-06 01:32:09 -05:00
nwfpe
oprofile
plat-iop
plat-omap
plat-orion mvebu fixes for 4.3 (part 1) 2015-10-14 17:10:55 +02:00
plat-pxa ARM: pxa: ssp: Fix build error by removing originally incorrect DT binding 2015-09-13 12:55:27 +02:00
plat-samsung ASoC: samsung: pass DMA channels as pointers 2016-04-12 09:08:32 -07:00
plat-versatile
probes
tools
vdso ARM: 8449/1: fix bug in vdsomunge swab32 macro 2015-10-29 15:20:15 +00:00
vfp
xen arm/xen: Use alloc_percpu rather than __alloc_percpu 2017-01-06 11:16:17 +01:00
Kconfig ARM: 8454/1: OF implies OF_FLATTREE 2015-11-28 23:26:12 +00:00
Kconfig-nommu
Kconfig.debug ARM: debug-ll: fix BCM63xx entry for multiplatform 2016-03-03 15:07:08 -08:00
Makefile