github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-09 07:03:37 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph
bae6277ad3
linux/drivers/clocksource
History
Keqian Zhu 21253ff57b clocksource/drivers/arm_arch_timer: Correct fault programming of CNTKCTL_EL1.EVNTI 
[ Upstream commit 8b7770b877 ]

ARM virtual counter supports event stream, it can only trigger an event
when the trigger bit (the value of CNTKCTL_EL1.EVNTI) of CNTVCT_EL0 changes,
so the actual period of event stream is 2^(cntkctl_evnti + 1). For example,
when the trigger bit is 0, then virtual counter trigger an event for every
two cycles.

While we're at it, rework the way we compute the trigger bit position
by making it more obvious that when bits [n:n-1] are both set (with n
being the most significant bit), we pick bit (n + 1).

Fixes: 037f637767 ("drivers: clocksource: add support for ARM architected timer event stream")
Suggested-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Keqian Zhu <zhukeqian1@huawei.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20201204073126.6920-3-zhukeqian1@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-12-30 11:26:00 +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 2019-01-09 17:38:42 +01:00
arm_arch_timer.c clocksource/drivers/arm_arch_timer: Correct fault programming of CNTKCTL_EL1.EVNTI 2020-12-30 11:26:00 +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/drivers/asm9260: Add a check for of_clk_get 2020-01-04 19:12:44 +01:00
bcm_kona_timer.c clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE 2017-06-14 11:58:45 +02:00
bcm2835_timer.c clocksource/drivers/bcm2835_timer: Fix memory leak of timer 2020-02-24 08:34:37 +01:00
cadence_ttc_timer.c clocksource/drivers/cadence_ttc: Fix memory leak in ttc_setup_clockevent() 2020-12-30 11:25:59 +01:00
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: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE 2017-06-14 11:58:45 +02:00
clps711x-timer.c clocksource/drivers: Rename CLKSRC_OF to TIMER_OF 2017-06-14 12:01:03 +02:00
cs5535-clockevt.c clockevents/drivers/cs5535: Improve resilience to spurious interrupts 2017-10-20 13:41:52 +02:00
dummy_timer.c cpu/hotplug: Cleanup state names 2016-12-25 10:47:44 +01:00
dw_apb_timer_of.c clocksource: dw_apb_timer_of: Fix missing clockevent timers 2020-06-22 09:05:11 +02:00
dw_apb_timer.c clocksource: dw_apb_timer: Make CPU-affiliation being optional 2020-06-22 09:05:11 +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: Fix error path in timer resources initialization 2020-01-27 14:50:27 +01:00
fsl_ftm_timer.c clocksource/drivers/fsl_ftm_timer: Fix error return checking 2018-02-26 13:56:05 +01:00
h8300_timer8.c clocksource/drivers/h8300_timer8: Fix wrong return value in h8300_8timer_init() 2020-10-01 13:14:51 +02:00
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 2018-11-21 09:19:20 +01:00
jcore-pit.c clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE 2017-06-14 11:58:45 +02:00
Kconfig clocksource/drivers/npcm: select TIMER_OF 2019-05-16 19:41:21 +02:00
Makefile RISC-V Updates for the 4.19 Merge Window 2018-08-19 09:56:38 -07:00
meson6_timer.c clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE 2017-06-14 11:58:45 +02:00
mips-gic-timer.c clocksource/drivers/mips-gic-timer: Add pr_fmt and reword pr_* messages 2018-05-18 22:53:09 +02:00
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: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE 2017-06-14 11:58:45 +02:00
numachip.c x86/numachip: Add const and __initconst to numachip2_clockevent 2017-09-25 09:36:15 +02:00
owl-timer.c clocksource/drivers/owl: Add the S700 timer 2018-01-08 17:57:23 +01:00
pxa_timer.c clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE 2017-06-14 11:58:45 +02:00
qcom-timer.c clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE 2017-06-14 11:58:45 +02:00
renesas-ostm.c clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE 2017-06-14 11:58:45 +02:00
riscv_timer.c clocksource: new RISC-V SBI timer driver 2018-08-13 08:31:31 -07:00
rockchip_timer.c clocksource/drivers/rockchip: pr_err() strings should end with newlines 2017-10-19 23:49:02 +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: Fix clocksource width for 32-bit machines 2019-11-24 08:19:57 +01:00
sh_mtu2.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
sh_tmu.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
sun4i_timer.c clocksource/drivers/sun4i: Switch to the timer-of common init 2017-06-26 18:32:04 +02:00
tango_xtal.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
tcb_clksrc.c clocksource/drivers/tcb_clksrc: Fix clock speed message 2018-01-08 17:57:23 +01:00
tegra20_timer.c Merge branch 'x86-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-08-13 18:28:19 -07:00
time-armada-370-xp.c clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE 2017-06-14 11:58:45 +02:00
time-efm32.c clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE 2017-06-14 11:58:45 +02:00
time-lpc32xx.c clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE 2017-06-14 11:58:45 +02:00
time-orion.c clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE 2017-06-14 11:58:45 +02:00
time-pistachio.c clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE 2017-06-14 11:58:45 +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-digicolor.c clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE 2017-06-14 11:58:45 +02:00
timer-fttmr010.c clocksource/drivers/fttmr010: Fix invalid interrupt register access 2019-12-05 09:20:38 +01:00
timer-imx-gpt.c clocksource/drivers/timer-imx-gpt: Switch to SPDX identifier 2018-05-23 07:38:52 +02:00
timer-imx-tpm.c clocksource/drivers/timer-imx-tpm: Switch to SPDX identifier 2018-05-23 07:39:01 +02:00
timer-integrator-ap.c clocksource/drivers/integrator-ap: Add missing of_node_put() 2019-01-26 09:32:42 +01:00
timer-keystone.c clocksource/drivers: Set clockevent device cpumask to cpu_possible_mask 2018-07-26 11:26:30 +02:00
timer-mediatek.c clocksource/drivers/mediatek: Fix error handling 2019-12-05 09:19:35 +01:00
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: Use unique device name instead of timer 2020-01-04 19:12:45 +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-oxnas-rps.c clocksource/drivers/oxnas: Fix OX820 compatible 2019-05-16 19:41:21 +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-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-sp804.c ARM: timer-sp: Use of_clk_get_parent_count() instead of open coding 2018-05-02 08:32:57 -07:00
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-sun5i.c clocksource/drivers/sun5i: Fail gracefully when clock rate is unavailable 2020-01-27 14:50:27 +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 bus: ti-sysc: Fix timer handling with drop pm_runtime_irq_safe() 2020-01-27 14:50:16 +01:00
timer-u300.c clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE 2017-06-14 11:58:45 +02:00
versatile.c clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE 2017-06-14 11:58:45 +02:00
vf_pit_timer.c clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE 2017-06-14 11:58:45 +02:00
vt8500_timer.c clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE 2017-06-14 11:58:45 +02:00
zevio-timer.c clocksource/drivers: Set clockevent device cpumask to cpu_possible_mask 2018-07-26 11:26:30 +02:00