Nicholas Piggin
682e6b4da5
rtc: opal: Fix OPAL RTC driver OPAL_BUSY loops
...
The OPAL RTC driver does not sleep in case it gets OPAL_BUSY or
OPAL_BUSY_EVENT from firmware, which causes large scheduling
latencies, up to 50 seconds have been observed here when RTC stops
responding (BMC reboot can do it).
Fix this by converting it to the standard form OPAL_BUSY loop that
sleeps.
Fixes: 628daa8d5a ("powerpc/powernv: Add RTC and NVRAM support plus RTAS fallbacks")
Cc: stable@vger.kernel.org # v3.2+
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-04-25 13:24:13 +10:00
..
class.c
rtc: Add one offset seconds to expand RTC range
2018-03-17 14:20:55 +01:00
hctosys.c
rtc: hctosys: Ensure system time doesn't overflow time_t
2018-03-27 10:44:43 +02:00
interface.c
rtc: Add one offset seconds to expand RTC range
2018-03-17 14:20:55 +01:00
Kconfig
RTC for 4.17
2018-04-10 10:22:27 -07:00
Makefile
RTC for 4.17
2018-04-10 10:22:27 -07:00
nvmem.c
rtc-88pm80x.c
rtc: 88pm80x: remove artificial limitation
2018-03-27 10:45:04 +02:00
rtc-88pm860x.c
rtc: 88pm860x: remove artificial limitation
2018-03-27 10:45:04 +02:00
rtc-ab-b5ze-s3.c
RTC for 4.17
2018-04-10 10:22:27 -07:00
rtc-ab3100.c
rtc-ab8500.c
rtc: ab8500: Drop AB8540 support
2018-03-27 10:45:05 +02:00
rtc-abx80x.c
rtc-ac100.c
rtc: ac100: Fix ac100 determine rate bug
2018-03-17 14:20:50 +01:00
rtc-armada38x.c
rtc-as3722.c
rtc-asm9260.c
rtc-at91rm9200.c
rtc-at91rm9200.h
rtc-at91sam9.c
rtc: at91sam9: Set name of regmap_config
2018-03-17 14:20:57 +01:00
rtc-au1xxx.c
rtc-bq32k.c
rtc: remove VLA usage
2018-03-17 14:20:56 +01:00
rtc-bq4802.c
rtc-brcmstb-waketimer.c
rtc: brcmstb-waketimer: Set wktmr prescaler
2018-03-17 14:20:51 +01:00
rtc-cmos.c
RTC for 4.17
2018-04-10 10:22:27 -07:00
rtc-coh901331.c
rtc-core.h
rtc-cpcap.c
rtc-cros-ec.c
rtc: cros-ec: return -ETIME when refused to set alarms in the past
2018-03-17 14:20:53 +01:00
rtc-da9052.c
rtc-da9055.c
rtc-da9063.c
rtc-davinci.c
rtc-dev.c
rtc-digicolor.c
rtc-dm355evm.c
rtc-ds1216.c
rtc-ds1286.c
rtc-ds1302.c
rtc-ds1305.c
rtc-ds1307.c
rtc-ds1343.c
rtc-ds1347.c
rtc-ds1374.c
rtc-ds1390.c
rtc-ds1511.c
rtc-ds1553.c
rtc-ds1672.c
rtc-ds1685.c
rtc-ds1742.c
rtc-ds2404.c
rtc-ds3232.c
rtc-efi-platform.c
rtc-efi.c
rtc-em3027.c
rtc-ep93xx.c
rtc-fm3130.c
rtc-ftrtc010.c
rtc-generic.c
rtc-goldfish.c
rtc-hid-sensor-time.c
rtc-hym8563.c
rtc-imxdi.c
rtc-isl1208.c
rtc: isl1208: switch to rtc_register_device
2018-03-17 14:20:54 +01:00
rtc-isl12022.c
rtc: isl12022: use true and false for boolean values
2018-04-03 16:40:46 +02:00
rtc-isl12026.c
rtc: isl12026: fixup nvmem registration
2018-03-17 14:20:51 +01:00
rtc-jz4740.c
rtc-lib.c
rtc: fix rtc_time64_to_tm for 3477
2018-03-17 14:20:50 +01:00
rtc-lp8788.c
rtc-lpc24xx.c
rtc-lpc32xx.c
rtc-ls1x.c
rtc-m41t80.c
rtc: m41t80: remove useless indirection
2018-03-17 14:20:48 +01:00
rtc-m41t93.c
rtc-m41t94.c
rtc-m48t35.c
rtc-m48t59.c
rtc-m48t86.c
rtc-max6900.c
rtc: max6900: remove useless indirection
2018-03-17 14:20:46 +01:00
rtc-max6902.c
rtc-max6916.c
rtc-max8907.c
rtc-max8925.c
rtc-max8997.c
rtc-max8998.c
rtc-max77686.c
rtc-mc13xxx.c
rtc-mc146818-lib.c
rtc-mcp795.c
rtc: remove VLA usage
2018-03-17 14:20:56 +01:00
rtc-moxart.c
rtc-mpc5121.c
rtc-mrst.c
rtc: mrst: remove artificial limitation
2018-03-27 10:45:03 +02:00
rtc-msm6242.c
rtc-mt6397.c
rtc-mt7622.c
rtc: mt7622: fix module autoloading for OF platform drivers
2018-04-03 16:40:48 +02:00
rtc-mv.c
rtc: mv: remove artificial limitation
2018-03-27 10:45:02 +02:00
rtc-mxc.c
rtc-mxc_v2.c
rtc-nuc900.c
rtc-omap.c
rtc-opal.c
rtc: opal: Fix OPAL RTC driver OPAL_BUSY loops
2018-04-25 13:24:13 +10:00
rtc-palmas.c
rtc-pcap.c
rtc-pcf2123.c
rtc-pcf2127.c
rtc-pcf8523.c
rtc-pcf8563.c
rtc-pcf8583.c
rtc-pcf50633.c
rtc-pcf85063.c
rtc: pcf85063: fix clearing bits in pcf85063_start_clock
2018-03-17 14:20:57 +01:00
rtc-pcf85363.c
rtc: pcf85363: set time accurately
2018-03-17 14:20:49 +01:00
rtc-pic32.c
rtc-pl030.c
rtc-pl031.c
rtc-pm8xxx.c
rtc: pm8xxx: Fix issue in RTC write path
2018-03-17 14:20:52 +01:00
rtc-proc.c
rtc-ps3.c
rtc-puv3.c
rtc-pxa.c
rtc-r7301.c
rtc-r9701.c
rtc-rc5t583.c
rtc-rk808.c
rtc: rk808: fix possible race condition
2018-03-17 14:20:42 +01:00
rtc-rp5c01.c
rtc-rs5c313.c
rtc-rs5c348.c
rtc-rs5c372.c
rtc: rs5c372: remove useless indirection
2018-03-17 14:20:45 +01:00
rtc-rtd119x.c
rtc-rv3029c2.c
rtc-rv8803.c
rtc-rx4581.c
rtc-rx6110.c
rtc-rx8010.c
rtc-rx8025.c
rtc-rx8581.c
rtc-s3c.c
rtc-s3c.h
rtc-s5m.c
rtc: s5m: Remove VLA usage
2018-03-17 14:20:57 +01:00
rtc-s35390a.c
rtc: s35390a: remove useless indirection
2018-03-17 14:20:44 +01:00
rtc-sa1100.c
rtc-sa1100.h
rtc-sc27xx.c
rtc-sh.c
rtc-sirfsoc.c
rtc-snvs.c
rtc: snvs: Fix usage of snvs_rtc_enable
2018-04-03 16:43:36 +02:00
rtc-spear.c
rtc-st-lpc.c
rtc: st-lpc: remove artificial limitation
2018-03-27 10:45:03 +02:00
rtc-starfire.c
rtc-stk17ta8.c
rtc-stm32.c
rtc-stmp3xxx.c
rtc-sun4v.c
rtc-sun6i.c
rtc-sunxi.c
rtc-sysfs.c
rtc: Add RTC range
2018-03-17 14:20:54 +01:00
rtc-tegra.c
rtc-test.c
rtc-tps6586x.c
rtc-tps65910.c
rtc-tps80031.c
rtc-twl.c
rtc-tx4939.c
rtc-v3020.c
rtc-vr41xx.c
rtc-vt8500.c
rtc-wm831x.c
rtc-wm8350.c
rtc-x1205.c
rtc-xgene.c
rtc-zynqmp.c
systohc.c
rtc: remove a warning during scripts/kernel-doc step
2018-03-27 10:45:05 +02:00