mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
918af9f941
OMAP CPU hotplug uses cpu1's clocks and power domains for CPU1 wake up from low power states (or turn on CPU1). This part of code is also part of system suspend (disable_nonboot_cpus()). >From other side, cpu1's clocks and power domains are used by CPUIdle. All above functionality is mutually exclusive and, therefore, lockless clkdm/pwrdm api can be used in omap4_boot_secondary(). This fixes below back-trace on -RT which is triggered by pwrdm_lock/unlock(): BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:917 in_atomic(): 1, irqs_disabled(): 0, pid: 118, name: sh 9 locks held by sh/118: #0: (sb_writers#4){.+.+.+}, at: [<c0144a6c>] vfs_write+0x13c/0x164 #1: (&of->mutex){+.+.+.}, at: [<c01b4c70>] kernfs_fop_write+0x48/0x19c #2: (s_active#24){.+.+.+}, at: [<c01b4c78>] kernfs_fop_write+0x50/0x19c #3: (device_hotplug_lock){+.+.+.}, at: [<c03cbff0>] lock_device_hotplug_sysfs+0xc/0x4c #4: (&dev->mutex){......}, at: [<c03cd284>] device_online+0x14/0x88 #5: (cpu_add_remove_lock){+.+.+.}, at: [<c003af90>] cpu_up+0x50/0x1a0 #6: (cpu_hotplug.lock){++++++}, at: [<c003ae48>] cpu_hotplug_begin+0x0/0xc4 #7: (cpu_hotplug.lock#2){+.+.+.}, at: [<c003aec0>] cpu_hotplug_begin+0x78/0xc4 #8: (boot_lock){+.+...}, at: [<c002b254>] omap4_boot_secondary+0x1c/0x178 Preemption disabled at:[< (null)>] (null) CPU: 0 PID: 118 Comm: sh Not tainted 4.1.12-rt11-01998-gb4a62c3-dirty #137 Hardware name: Generic DRA74X (Flattened Device Tree) [<c0017574>] (unwind_backtrace) from [<c0013be8>] (show_stack+0x10/0x14) [<c0013be8>] (show_stack) from [<c05a8670>] (dump_stack+0x80/0x94) [<c05a8670>] (dump_stack) from [<c05ad158>] (rt_spin_lock+0x24/0x54) [<c05ad158>] (rt_spin_lock) from [<c0030dac>] (clkdm_wakeup+0x10/0x2c) [<c0030dac>] (clkdm_wakeup) from [<c002b2c0>] (omap4_boot_secondary+0x88/0x178) [<c002b2c0>] (omap4_boot_secondary) from [<c0015d00>] (__cpu_up+0xc4/0x164) [<c0015d00>] (__cpu_up) from [<c003b09c>] (cpu_up+0x15c/0x1a0) [<c003b09c>] (cpu_up) from [<c03cd2d4>] (device_online+0x64/0x88) [<c03cd2d4>] (device_online) from [<c03cd360>] (online_store+0x68/0x74) [<c03cd360>] (online_store) from [<c01b4ce0>] (kernfs_fop_write+0xb8/0x19c) [<c01b4ce0>] (kernfs_fop_write) from [<c0144124>] (__vfs_write+0x20/0xd8) [<c0144124>] (__vfs_write) from [<c01449c0>] (vfs_write+0x90/0x164) [<c01449c0>] (vfs_write) from [<c01451e4>] (SyS_write+0x44/0x9c) [<c01451e4>] (SyS_write) from [<c0010240>] (ret_fast_syscall+0x0/0x54) CPU1: smp_ops.cpu_die() returned, trying to resuscitate Cc: Tero Kristo <t-kristo@ti.com> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com> |
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|---|---|---|
| .. | ||
| include/mach | ||
| am33xx-restart.c | ||
| am33xx.h | ||
| board-flash.c | ||
| board-flash.h | ||
| board-generic.c | ||
| board-ldp.c | ||
| board-n8x0.c | ||
| board-rx51-peripherals.c | ||
| board-rx51-video.c | ||
| board-rx51.c | ||
| board-rx51.h | ||
| clkt2xxx_dpll.c | ||
| clkt2xxx_dpllcore.c | ||
| clkt2xxx_virt_prcm_set.c | ||
| clock2xxx.h | ||
| clock3xxx.h | ||
| clock.c | ||
| clock.h | ||
| clockdomain.c | ||
| clockdomain.h | ||
| clockdomains2xxx_3xxx_data.c | ||
| clockdomains3xxx_data.c | ||
| clockdomains7xx_data.c | ||
| clockdomains33xx_data.c | ||
| clockdomains43xx_data.c | ||
| clockdomains44xx_data.c | ||
| clockdomains54xx_data.c | ||
| clockdomains81xx_data.c | ||
| clockdomains2420_data.c | ||
| clockdomains2430_data.c | ||
| cm1_7xx.h | ||
| cm1_44xx.h | ||
| cm1_54xx.h | ||
| cm2_7xx.h | ||
| cm2_44xx.h | ||
| cm2_54xx.h | ||
| cm2xxx_3xxx.h | ||
| cm2xxx.c | ||
| cm2xxx.h | ||
| cm3xxx.c | ||
| cm3xxx.h | ||
| cm33xx.c | ||
| cm33xx.h | ||
| cm44xx.h | ||
| cm81xx.h | ||
| cm_common.c | ||
| cm-regbits-7xx.h | ||
| cm-regbits-24xx.h | ||
| cm-regbits-33xx.h | ||
| cm-regbits-34xx.h | ||
| cm-regbits-44xx.h | ||
| cm-regbits-54xx.h | ||
| cm.h | ||
| cminst44xx.c | ||
| common-board-devices.c | ||
| common-board-devices.h | ||
| common.c | ||
| common.h | ||
| control.c | ||
| control.h | ||
| cpuidle34xx.c | ||
| cpuidle44xx.c | ||
| ctrl_module_wkup_44xx.h | ||
| devices.c | ||
| display.c | ||
| display.h | ||
| dma.c | ||
| drm.c | ||
| dss-common.c | ||
| dss-common.h | ||
| fb.c | ||
| gpio.c | ||
| gpmc-nand.c | ||
| gpmc-onenand.c | ||
| gpmc-smsc911x.c | ||
| gpmc-smsc911x.h | ||
| gpmc.h | ||
| hdq1w.c | ||
| hdq1w.h | ||
| hsmmc.c | ||
| hsmmc.h | ||
| i2c.c | ||
| i2c.h | ||
| id.c | ||
| id.h | ||
| io.c | ||
| iomap.h | ||
| Kconfig | ||
| l3_2xxx.h | ||
| l3_3xxx.h | ||
| l4_2xxx.h | ||
| l4_3xxx.h | ||
| Makefile | ||
| Makefile.boot | ||
| mcbsp.c | ||
| mmc.h | ||
| msdi.c | ||
| mux34xx.c | ||
| mux34xx.h | ||
| mux.c | ||
| mux.h | ||
| omap2-restart.c | ||
| omap3-restart.c | ||
| omap4-common.c | ||
| omap4-restart.c | ||
| omap4-sar-layout.h | ||
| omap24xx.h | ||
| omap34xx.h | ||
| omap44xx.h | ||
| omap54xx.h | ||
| omap_device.c | ||
| omap_device.h | ||
| omap_hwmod_2xxx_3xxx_interconnect_data.c | ||
| omap_hwmod_2xxx_3xxx_ipblock_data.c | ||
| omap_hwmod_2xxx_interconnect_data.c | ||
| omap_hwmod_2xxx_ipblock_data.c | ||
| omap_hwmod_3xxx_data.c | ||
| omap_hwmod_7xx_data.c | ||
| omap_hwmod_33xx_43xx_common_data.h | ||
| omap_hwmod_33xx_43xx_interconnect_data.c | ||
| omap_hwmod_33xx_43xx_ipblock_data.c | ||
| omap_hwmod_33xx_data.c | ||
| omap_hwmod_43xx_data.c | ||
| omap_hwmod_44xx_data.c | ||
| omap_hwmod_54xx_data.c | ||
| omap_hwmod_81xx_data.c | ||
| omap_hwmod_2420_data.c | ||
| omap_hwmod_2430_data.c | ||
| omap_hwmod_common_data.c | ||
| omap_hwmod_common_data.h | ||
| omap_hwmod_common_ipblock_data.c | ||
| omap_hwmod_reset.c | ||
| omap_hwmod.c | ||
| omap_hwmod.h | ||
| omap_opp_data.h | ||
| omap_phy_internal.c | ||
| omap_twl.c | ||
| omap-headsmp.S | ||
| omap-hotplug.c | ||
| omap-iommu.c | ||
| omap-mpuss-lowpower.c | ||
| omap-pm-noop.c | ||
| omap-pm.h | ||
| omap-secure.c | ||
| omap-secure.h | ||
| omap-smc.S | ||
| omap-smp.c | ||
| omap-wakeupgen.c | ||
| omap-wakeupgen.h | ||
| opp2xxx.h | ||
| opp3xxx_data.c | ||
| opp4xxx_data.c | ||
| opp2420_data.c | ||
| opp2430_data.c | ||
| opp.c | ||
| pdata-quirks.c | ||
| pm24xx.c | ||
| pm34xx.c | ||
| pm44xx.c | ||
| pm-debug.c | ||
| pm.c | ||
| pm.h | ||
| pmu.c | ||
| powerdomain-common.c | ||
| powerdomain.c | ||
| powerdomain.h | ||
| powerdomains2xxx_3xxx_data.c | ||
| powerdomains2xxx_3xxx_data.h | ||
| powerdomains2xxx_data.c | ||
| powerdomains3xxx_data.c | ||
| powerdomains7xx_data.c | ||
| powerdomains33xx_data.c | ||
| powerdomains43xx_data.c | ||
| powerdomains44xx_data.c | ||
| powerdomains54xx_data.c | ||
| prcm43xx.h | ||
| prcm44xx.h | ||
| prcm_mpu7xx.h | ||
| prcm_mpu44xx.c | ||
| prcm_mpu44xx.h | ||
| prcm_mpu54xx.h | ||
| prcm_mpu_44xx_54xx.h | ||
| prcm-common.h | ||
| prm2xxx_3xxx.c | ||
| prm2xxx_3xxx.h | ||
| prm2xxx.c | ||
| prm2xxx.h | ||
| prm3xxx.c | ||
| prm3xxx.h | ||
| prm7xx.h | ||
| prm33xx.c | ||
| prm33xx.h | ||
| prm44xx_54xx.h | ||
| prm44xx.c | ||
| prm44xx.h | ||
| prm54xx.h | ||
| prm_common.c | ||
| prm-regbits-24xx.h | ||
| prm-regbits-33xx.h | ||
| prm-regbits-34xx.h | ||
| prm-regbits-44xx.h | ||
| prm.h | ||
| prminst44xx.c | ||
| prminst44xx.h | ||
| scrm44xx.h | ||
| scrm54xx.h | ||
| sdram-hynix-h8mbx00u0mer-0em.h | ||
| sdram-micron-mt46h32m32lf-6.h | ||
| sdram-nokia.c | ||
| sdram-nokia.h | ||
| sdram-numonyx-m65kxxxxam.h | ||
| sdram-qimonda-hyb18m512160af-6.h | ||
| sdrc2xxx.c | ||
| sdrc.c | ||
| sdrc.h | ||
| serial.c | ||
| serial.h | ||
| sleep24xx.S | ||
| sleep34xx.S | ||
| sleep44xx.S | ||
| smartreflex-class3.c | ||
| soc.h | ||
| sr_device.c | ||
| sram242x.S | ||
| sram243x.S | ||
| sram.c | ||
| sram.h | ||
| ti81xx-restart.c | ||
| ti81xx.h | ||
| timer.c | ||
| twl-common.c | ||
| twl-common.h | ||
| usb-host.c | ||
| usb-musb.c | ||
| usb-tusb6010.c | ||
| usb.h | ||
| vc3xxx_data.c | ||
| vc44xx_data.c | ||
| vc.c | ||
| vc.h | ||
| voltage.c | ||
| voltage.h | ||
| voltagedomains2xxx_data.c | ||
| voltagedomains3xxx_data.c | ||
| voltagedomains44xx_data.c | ||
| voltagedomains54xx_data.c | ||
| vp3xxx_data.c | ||
| vp44xx_data.c | ||
| vp.c | ||
| vp.h | ||
| wd_timer.c | ||
| wd_timer.h | ||