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linux/drivers/clocksource
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Marc Zyngier 0f80cad312 arm64: Restrict ARM64_ERRATUM_1188873 mitigation to AArch32 
We currently deal with ARM64_ERRATUM_1188873 by always trapping EL0
accesses for both instruction sets. Although nothing wrong comes out
of that, people trying to squeeze the last drop of performance from
buggy HW find this over the top. Oh well.

Let's change the mitigation by flipping the counter enable bit
on return to userspace. Non-broken HW gets an extra branch on
the fast path, which is hopefully not the end of the world.
The arch timer workaround is also removed.

Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-04-30 14:45:53 +01:00
..
acpi_pm.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
arc_timer.c
clocksource/drivers/arc_timer: Utilize generic sched_clock
2018-12-18 22:22:23 +01:00
arm_arch_timer.c
arm64: Restrict ARM64_ERRATUM_1188873 mitigation to AArch32
2019-04-30 14:45:53 +01:00
arm_global_timer.c
clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE
2017-06-14 11:58:45 +02:00
armv7m_systick.c
clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE
2017-06-14 11:58:45 +02:00
asm9260_timer.c
clocksource: Convert to using %pOFn instead of device_node.name
2018-10-03 14:36:52 +02:00
bcm2835_timer.c
clocksource/drivers/bcm2835: Switch to SPDX identifier
2018-12-18 22:22:23 +01:00
bcm_kona_timer.c
clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE
2017-06-14 11:58:45 +02:00
clksrc_st_lpc.c
clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE
2017-06-14 11:58:45 +02:00
clksrc-dbx500-prcmu.c
clocksource/drivers/ux500: Drop Ux500 custom SCHED_CLOCK
2018-12-18 22:22:23 +01:00
clps711x-timer.c
clocksource/drivers/clps711x: Remove board support
2019-03-24 11:30:11 +01:00
dummy_timer.c
cpu/hotplug: Cleanup state names
2016-12-25 10:47:44 +01:00
dw_apb_timer_of.c
clocksource/drivers/dw_apb: Add reset control
2018-10-07 14:16:35 +02:00
dw_apb_timer.c
Merge branch 'clockevents/4.12' of https://git.linaro.org/people/daniel.lezcano/linux into timers/core
2017-04-17 10:55:14 +02:00
em_sti.c
clocksource/drivers/em_sti: Fix error return codes in em_sti_probe()
2017-08-10 14:48:18 +02:00
exynos_mct.c
clocksource/drivers/exynos_mct: Remove unused header includes
2019-02-23 12:13:45 +01:00
h8300_timer8.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
h8300_timer16.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
h8300_tpu.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
i8253.c
clockevents/drivers/i8253: Add support for PIT shutdown quirk
2018-11-04 11:04:46 +01:00
jcore-pit.c
clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE
2017-06-14 11:58:45 +02:00
Kconfig
ARM: New SoC family support
2019-03-06 10:15:42 -08:00
Makefile
ARM: New SoC family support
2019-03-06 10:15:42 -08:00
mips-gic-timer.c
clocksource/drivers/mips-gic-timer: Make gic_compare_irqaction static
2019-03-22 22:59:33 +01:00
mmio.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
mps2-timer.c
clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE
2017-06-14 11:58:45 +02:00
mxs_timer.c
clocksource/drivers/mxs_timer: Switch to SPDX identifier
2018-05-23 07:39:09 +02:00
nomadik-mtu.c
clocksource/drivers/ux500: Drop Ux500 custom SCHED_CLOCK
2018-12-18 22:22:23 +01:00
numachip.c
x86/numachip: Add const and __initconst to numachip2_clockevent
2017-09-25 09:36:15 +02:00
renesas-ostm.c
clocksource/drivers/renesas-ostm: Convert to SPDX identifiers
2018-10-03 14:36:53 +02:00
samsung_pwm_timer.c
clocksource/drivers: Rename CLKSRC_OF to TIMER_OF
2017-06-14 12:01:03 +02:00
scx200_hrt.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
sh_cmt.c
clocksource/drivers/sh_cmt: Add R-Car gen3 support
2018-10-03 14:37:01 +02:00
sh_mtu2.c
clocksource/drivers/sh_mtu2: Convert to SPDX identifiers
2018-10-03 14:36:55 +02:00
sh_tmu.c
clocksource/drivers/sh_tmu: Convert to SPDX identifiers
2018-10-03 14:36:56 +02:00
tcb_clksrc.c
clocksource/drivers/tcb_clksrc: Make tc_clksrc_suspend/resume() static
2019-03-22 22:59:33 +01:00
timer-armada-370-xp.c
clocksource/drivers: Unify the names to timer-* format
2018-10-03 14:37:02 +02:00
timer-atcpit100.c
clocksource/drivers: Set clockevent device cpumask to cpu_possible_mask
2018-07-26 11:26:30 +02:00
timer-atlas7.c
clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE
2017-06-14 11:58:45 +02:00
timer-atmel-pit.c
clocksource/drivers/timer-atmel-pit: Properly handle error cases
2018-09-27 12:01:45 +02:00
timer-atmel-st.c
clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE
2017-06-14 11:58:45 +02:00
timer-cadence-ttc.c
clocksource/drivers: Unify the names to timer-* format
2018-10-03 14:37:02 +02:00
timer-cs5535.c
clocksource/drivers/timer-cs5535: Rename the file for consistency
2019-02-23 12:13:45 +01:00
timer-digicolor.c
clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE
2017-06-14 11:58:45 +02:00
timer-efm32.c
clocksource/drivers: Unify the names to timer-* format
2018-10-03 14:37:02 +02:00
timer-fsl-ftm.c
clocksource/drivers: Unify the names to timer-* format
2018-10-03 14:37:02 +02:00
timer-fttmr010.c
clocksource/drivers/fttmr010: Fix invalid interrupt register access
2018-12-18 22:22:23 +01:00
timer-gx6605s.c
clocksource/drivers/c-sky: Add gx6605s SOC system timer
2018-11-02 19:41:12 +01:00
timer-imx-gpt.c
clocksource/drivers/imx-gpt: Remove unnecessary irq protection
2018-12-18 22:22:23 +01:00
timer-imx-tpm.c
clocksource/drivers/timer-imx-tpm: Specify clock name for timer-of
2018-12-18 22:22:23 +01:00
timer-integrator-ap.c
clocksource/drivers/integrator-ap: Add missing of_node_put()
2018-12-18 22:22:23 +01:00
timer-keystone.c
clocksource/drivers: Set clockevent device cpumask to cpu_possible_mask
2018-07-26 11:26:30 +02:00
timer-lpc32xx.c
clocksource/drivers: Unify the names to timer-* format
2018-10-03 14:37:02 +02:00
timer-mediatek.c
clocksource/drivers/timer-mediatek: Add support for system timer
2018-07-26 11:26:34 +02:00
timer-meson6.c
clocksource/drivers/meson6: Change name meson6_timer timer-meson6
2018-12-18 22:22:23 +01:00
timer-milbeaut.c
clocksource/drivers/timer-milbeaut: Introduce timer for Milbeaut SoCs
2019-03-01 15:18:27 +01:00
timer-mp-csky.c
clocksource/drivers/c-sky: fixup ftrace call-graph panic
2018-12-31 23:17:23 +08:00
timer-npcm7xx.c
clocksource/drivers/npcm: Add NPCM7xx timer driver
2018-03-30 22:44:09 +02:00
timer-nps.c
clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE
2017-06-14 11:58:45 +02:00
timer-of.c
clocksource/drivers/timer-of: Don't request the resource by name
2018-01-08 17:57:24 +01:00
timer-of.h
clocksource/drivers/timer-of: Store the device node pointer in 'struct timer_of'
2018-01-08 17:57:24 +01:00
timer-orion.c
clocksource/drivers: Unify the names to timer-* format
2018-10-03 14:37:02 +02:00
timer-owl.c
clocksource/drivers: Unify the names to timer-* format
2018-10-03 14:37:02 +02:00
timer-oxnas-rps.c
clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE
2017-06-14 11:58:45 +02:00
timer-pistachio.c
clocksource/drivers: Unify the names to timer-* format
2018-10-03 14:37:02 +02:00
timer-prima2.c
clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE
2017-06-14 11:58:45 +02:00
timer-probe.c
clocksource: Convert to using %pOF instead of full_name
2017-08-31 15:56:17 +02:00
timer-pxa.c
clocksource/drivers/timer-pxa: Rename the file for consistency
2019-02-23 12:13:45 +01:00
timer-qcom.c
clocksource/drivers: Unify the names to timer-* format
2018-10-03 14:37:02 +02:00
timer-rda.c
clocksource/drivers/rda: Add clock driver for RDA8810PL SoC
2018-12-18 22:22:23 +01:00
timer-riscv.c
clocksource/drivers/riscv: Fix clocksource mask
2019-03-23 12:25:34 +01:00
timer-rockchip.c
clocksource/drivers/rockchip: Change name rockchip_timer to timer-rockchip
2018-12-18 22:22:23 +01:00
timer-sp804.c
clocksource: Convert to using %pOFn instead of device_node.name
2018-10-03 14:36:52 +02:00
timer-sp.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
timer-sprd.c
clocksource/drivers/sprd: Register one always-on timer to compensate suspend time
2018-07-26 11:26:34 +02:00
timer-stm32.c
clocksource/drivers/stm32: Fix error return code
2018-06-12 23:54:01 +02:00
timer-sun4i.c
clocksource/drivers/sun4i: Change name sun4i_timer to timer-sun4i
2018-12-18 22:22:23 +01:00
timer-sun5i.c
clocksource/drivers/sun5i: Fail gracefully when clock rate is unavailable
2019-02-23 12:13:45 +01:00
timer-tango-xtal.c
clocksource/drivers/tango-xtal: Rename the file for consistency
2019-02-23 12:13:45 +01:00
timer-tegra20.c
clocksource/drivers/tegra: Add Tegra210 timer support
2019-02-23 12:13:45 +01:00
timer-ti-32k.c
clocksource/drivers/ti-32k: Add CLOCK_SOURCE_SUSPEND_NONSTOP flag for non-am43 SoCs
2018-09-13 15:23:35 +02:00
timer-ti-dm.c
clocksource/drivers/timer-ti-dm: Make omap_dm_timer_set_load_start() static
2019-03-22 22:59:33 +01:00
timer-u300.c
clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE
2017-06-14 11:58:45 +02:00
timer-versatile.c
clocksource/drivers: Unify the names to timer-* format
2018-10-03 14:37:02 +02:00
timer-vf-pit.c
clocksource/drivers: Unify the names to timer-* format
2018-10-03 14:37:02 +02:00
timer-vt8500.c
clocksource/drivers/timer-vt8500: Remove duplicate function name
2018-12-18 22:22:23 +01:00
timer-zevio.c
clocksource/drivers: Unify the names to timer-* format
2018-10-03 14:37:02 +02:00