superrob1500
/
mirror-linux
mirror of https://github.com/torvalds/linux
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
mirror-linux/drivers/clocksource
History
Andre Przywara 025d2ac470 clocksource/drivers/arm_arch_timer: limit XGene-1 workaround 
[ Upstream commit 851354cbd1 ]

The AppliedMicro XGene-1 CPU has an erratum where the timer condition
would only consider TVAL, not CVAL. We currently apply a workaround when
seeing the PartNum field of MIDR_EL1 being 0x000, under the assumption
that this would match only the XGene-1 CPU model.
However even the Ampere eMAG (aka XGene-3) uses that same part number, and
only differs in the "Variant" and "Revision" fields: XGene-1's MIDR is
0x500f0000, our eMAG reports 0x503f0002. Experiments show the latter
doesn't show the faulty behaviour.

Increase the specificity of the check to only consider partnum 0x000 and
variant 0x00, to exclude the Ampere eMAG.

Fixes: 012f188504 ("clocksource/drivers/arm_arch_timer: Work around broken CVAL implementations")
Reported-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20231016153127.116101-1-andre.przywara@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2023-11-20 11:52:01 +01:00
..
Kconfig clocksource/drivers/exynos_mct: Enable building on ARTPEC 2022-09-20 10:49:45 +02:00
Makefile - Add the missing DT bindings for the MTU nomadik timer (Linus 2022-07-28 12:33:34 +02:00
acpi_pm.c clocksource: acpi_pm: fix return value of __setup handler 2022-03-18 14:59:27 +01:00
arc_timer.c clocksource/drivers/arc_timer: Eliminate redefined macro error 2021-10-16 22:15:01 +02:00
arm_arch_timer.c clocksource/drivers/arm_arch_timer: limit XGene-1 workaround 2023-11-20 11:52:01 +01:00
arm_global_timer.c clocksource/drivers/arm_global_timer: Remove duplicated argument in arm_global_timer 2021-06-16 17:33:04 +02:00
armv7m_systick.c
…
asm9260_timer.c
…
bcm2835_timer.c
…
bcm_kona_timer.c clocksource/drivers/bcm_kona: Convert to SPDX identifier 2022-05-18 11:08:59 +02:00
clksrc-dbx500-prcmu.c timekeeping, clocksource: Fix various typos in comments 2021-03-22 23:06:48 +01:00
clksrc_st_lpc.c
…
clps711x-timer.c
…
dummy_timer.c
…
dw_apb_timer.c
…
dw_apb_timer_of.c clocksource/drivers/dw_apb_timer_of: Fix probe failure 2021-12-10 17:46:54 +01:00
em_sti.c
…
exynos_mct.c clocksource/drivers/exynos_mct: Support local-timers property 2022-09-20 10:49:45 +02:00
hyperv_timer.c clocksource/drivers/hyperv: add data structure for reference TSC MSR 2022-11-03 15:50:28 +00:00
i8253.c
…
ingenic-ost.c clocksource/drivers/ingenic_ost: Fix return value check in ingenic_ost_probe() 2021-04-08 13:24:15 +02:00
ingenic-sysost.c clocksource/drivers/ingenic: Use bitfield macro helpers 2021-08-14 02:44:35 +02:00
ingenic-timer.c clocksource/drivers/ingenic: Add support for the JZ4760 2021-04-08 13:23:22 +02:00
jcore-pit.c clocksource/drivers/jcore: Convert to SPDX identifier 2022-05-18 11:08:59 +02:00
mips-gic-timer.c clocksource/drivers/mips-gic-timer: Convert to SPDX identifier 2022-05-18 11:08:59 +02:00
mmio.c
…
mps2-timer.c
…
mxs_timer.c
…
nomadik-mtu.c
…
numachip.c
…
renesas-ostm.c clocksource/drivers/renesas-ostm: Add support for RZ/V2L SoC 2022-09-07 10:12:56 +02:00
samsung_pwm_timer.c clocksource/drivers/samsung_pwm: Constify source IO memory 2021-06-04 10:12:13 +02:00
scx200_hrt.c
…
sh_cmt.c clocksource/drivers/sh_cmt: Access registers according to spec 2022-12-31 13:31:58 +01:00
sh_mtu2.c
…
sh_tmu.c
…
timer-armada-370-xp.c clocksource/drivers/armada-370-xp: Convert to SPDX identifier 2022-05-18 11:08:59 +02:00
timer-atmel-pit.c
…
timer-atmel-st.c
…
timer-atmel-tcb.c timekeeping, clocksource: Fix various typos in comments 2021-03-22 23:06:48 +01:00
timer-cadence-ttc.c clocksource/drivers/cadence-ttc: Fix memory leak in ttc_timer_probe 2023-07-19 16:20:59 +02:00
timer-clint.c
…
timer-cs5535.c
…
timer-davinci.c clocksource/drivers/davinci: Fix memory leak in davinci_timer_register when init fails 2023-05-11 23:03:35 +09:00
timer-digicolor.c clocksource/drivers/digicolor: Convert to SPDX identifier 2022-05-18 11:08:59 +02:00
timer-fsl-ftm.c timekeeping, clocksource: Fix various typos in comments 2021-03-22 23:06:48 +01:00
timer-fttmr010.c clocksource/drivers/fttmr010: Pass around less pointers 2021-08-14 10:49:49 +02:00
timer-goldfish.c clocksource/drivers: Add a goldfish-timer clocksource 2022-04-11 11:48:01 +02:00
timer-gx6605s.c
…
timer-gxp.c clocksource/drivers/timer-gxp: Add missing error handling in gxp_timer_probe 2022-09-20 10:49:45 +02:00
timer-imx-gpt.c
…
timer-imx-sysctr.c clocksource/drivers/imx-sysctr: handle nxp,no-divider property 2022-09-20 10:49:46 +02:00
timer-imx-tpm.c clocksource/drivers/imx-tpm: Move tpm_read_sched_clock() under CONFIG_ARM 2022-03-07 18:27:22 +01:00
timer-integrator-ap.c
…
timer-ixp4xx.c clocksource/drivers/ixp4xx: Drop boardfile probe path 2022-05-18 11:08:52 +02:00
timer-keystone.c
…
timer-lpc32xx.c clocksource/drivers/lpc32xx: Convert to SPDX identifier 2022-05-18 11:08:59 +02:00
timer-mediatek.c clocksource/drivers/timer-mediatek: Implement CPUXGPT timers 2022-07-16 00:41:51 +02:00
timer-meson6.c
…
timer-microchip-pit64b.c clocksource/drivers/timer-microchip-pit64b: Fix compilation warnings 2022-07-16 00:52:43 +02:00
timer-milbeaut.c
…
timer-mp-csky.c
…
timer-msc313e.c clocksource/drivers/msc313e: Add support for ssd20xd-based platforms 2021-12-20 13:28:39 +01:00
timer-npcm7xx.c clocksource/drivers/npcm: Add support for WPCM450 2021-04-08 13:24:16 +02:00
timer-of.c clocksource/drivers/timer-of: Check return value of of_iomap in timer_of_base_init() 2022-03-07 19:21:25 +01:00
timer-of.h
…
timer-orion.c clocksource/drivers/orion: Convert to SPDX identifier 2022-05-18 11:08:59 +02:00
timer-owl.c
…
timer-oxnas-rps.c clocksource/drivers/oxnas-rps: Fix irq_of_parse_and_map() return value 2022-05-24 09:16:29 +02:00
timer-pistachio.c clocksource/drivers/pistachio: Convert to SPDX identifier 2022-05-18 11:08:59 +02:00
timer-probe.c
…
timer-pxa.c
…
timer-qcom.c
…
timer-rda.c
…
timer-riscv.c clocksource/drivers/riscv: Patch riscv_clock_next_event() jump before first use 2023-03-10 09:33:03 +01:00
timer-rockchip.c
…
timer-sp.h
…
timer-sp804.c clocksource/drivers/sp804: Avoid error on multiple instances 2022-05-18 11:08:52 +02:00
timer-sprd.c
…
timer-stm32-lp.c
…
timer-stm32.c
…
timer-sun4i.c clocksource/drivers/sun4i: Add definition of clear interrupt 2022-09-20 10:49:39 +02:00
timer-sun5i.c clocksource/drivers/sun5i: Remove unnecessary (void*) conversions 2022-07-27 17:01:52 +02:00
timer-tegra.c
…
timer-tegra186.c clocksource/drivers/timer-tegra186: Add support for Tegra234 SoC 2022-07-16 00:38:50 +02:00
timer-ti-32k.c
…
timer-ti-dm-systimer.c clocksource/drivers/timer-ti-dm: Fix missing clk_disable_unprepare in dmtimer_systimer_init_clock() 2022-12-31 13:31:59 +01:00
timer-ti-dm.c drivers/clocksource/timer-ti-dm: Don't call clk_get_rate() in stop function 2023-11-20 11:51:50 +01:00
timer-versatile.c
…
timer-vf-pit.c timekeeping, clocksource: Fix various typos in comments 2021-03-22 23:06:48 +01:00
timer-vt8500.c
…
timer-zevio.c
…