Grigore Popescu fe8fe7723a soc: fsl: dpio: register dpio irq handlers after dpio create ... The dpio irqs must be registered when you can actually receive interrupts, ie when the dpios are created. Kernel goes through NULL pointer dereference errors followed by kernel panic [1] because the dpio irqs are enabled before the dpio is created. [1] Unable to handle kernel NULL pointer dereference at virtual address 0040 fsl_mc_dpio dpio.14: probed fsl_mc_dpio dpio.13: Adding to iommu group 11 ISV = 0, ISS = 0x00000004 Unable to handle kernel NULL pointer dereference at virtual address 0040 Mem abort info: ESR = 0x96000004 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 Data abort info: ISV = 0, ISS = 0x00000004 CM = 0, WnR = 0 [0000000000000040] user address but active_mm is swapper Internal error: Oops: 96000004 [#1] PREEMPT SMP Modules linked in: CPU: 2 PID: 151 Comm: kworker/2:1 Not tainted 5.6.0-rc4-next-20200304 #1 Hardware name: NXP Layerscape LX2160ARDB (DT) Workqueue: events deferred_probe_work_func pstate: 00000085 (nzcv daIf -PAN -UAO) pc : dpaa2_io_irq+0x18/0xe0 lr : dpio_irq_handler+0x1c/0x28 sp : ffff800010013e20 x29: ffff800010013e20 x28: ffff0026d9b4c140 x27: ffffa1d38a142018 x26: ffff0026d2953400 x25: ffffa1d38a142018 x24: ffffa1d38a7ba1d8 x23: ffff800010013f24 x22: 0000000000000000 x21: 0000000000000072 x20: ffff0026d2953400 x19: ffff0026d2a68b80 x18: 0000000000000001 x17: 000000002fb37f3d x16: 0000000035eafadd x15: ffff0026d9b4c5b8 x14: ffffffffffffffff x13: ff00000000000000 x12: 0000000000000038 x11: 0101010101010101 x10: 0000000000000040 x9 : ffffa1d388db11e4 x8 : ffffa1d38a7e40f0 x7 : ffff0026da414f38 x6 : 0000000000000000 x5 : ffff0026da414d80 x4 : ffff5e5353d0c000 x3 : ffff800010013f60 x2 : ffffa1d388db11c8 x1 : ffff0026d2a67c00 x0 : 0000000000000000 Call trace: dpaa2_io_irq+0x18/0xe0 dpio_irq_handler+0x1c/0x28 __handle_irq_event_percpu+0x78/0x2c0 handle_irq_event_percpu+0x38/0x90 handle_irq_event+0x4c/0xd0 handle_fasteoi_irq+0xbc/0x168 generic_handle_irq+0x2c/0x40 __handle_domain_irq+0x68/0xc0 gic_handle_irq+0x64/0x150 el1_irq+0xb8/0x180 _raw_spin_unlock_irqrestore+0x14/0x48 irq_set_affinity_hint+0x6c/0xa0 dpaa2_dpio_probe+0x2a4/0x518 fsl_mc_driver_probe+0x28/0x70 really_probe+0xdc/0x320 driver_probe_device+0x5c/0xf0 __device_attach_driver+0x88/0xc0 bus_for_each_drv+0x7c/0xc8 __device_attach+0xe4/0x140 device_initial_probe+0x18/0x20 bus_probe_device+0x98/0xa0 device_add+0x41c/0x758 fsl_mc_device_add+0x184/0x530 dprc_scan_objects+0x280/0x370 dprc_probe+0x124/0x3b0 fsl_mc_driver_probe+0x28/0x70 really_probe+0xdc/0x320 driver_probe_device+0x5c/0xf0 __device_attach_driver+0x88/0xc0 bus_for_each_drv+0x7c/0xc8 __device_attach+0xe4/0x140 device_initial_probe+0x18/0x20 bus_probe_device+0x98/0xa0 deferred_probe_work_func+0x74/0xa8 process_one_work+0x1c8/0x470 worker_thread+0x1f8/0x428 kthread+0x124/0x128 ret_from_fork+0x10/0x18 Code: a9bc7bfd 910003fd a9025bf5 a90363f7 (f9402015) ---[ end trace 38298e1a29e7a570 ]--- Kernel panic - not syncing: Fatal exception in interrupt SMP: stopping secondary CPUs Mem abort info: ESR = 0x96000004 CM = 0, WnR = 0 EC = 0x25: DABT (current EL), IL = 32 bits [0000000000000040] user address but active_mm is swapper SET = 0, FnV = 0 EA = 0, S1PTW = 0 Data abort info: ISV = 0, ISS = 0x00000004 CM = 0, WnR = 0 [0000000000000040] user address but active_mm is swapper SMP: failed to stop secondary CPUs 0-2 Kernel Offset: 0x21d378600000 from 0xffff800010000000 PHYS_OFFSET: 0xffffe92180000000 CPU features: 0x10002,21806008 Memory Limit: none ---[ end Kernel panic - not syncing: Fatal exception in interrupt ]--- Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Grigore Popescu <grigore.popescu@nxp.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>		2020-03-10 15:28:47 -05:00
..
actions	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
amlogic	soc: amlogic: meson-ee-pwrc: propagate errors from pm_genpd_init()	2019-12-09 15:21:20 -08:00
aspeed	soc: aspeed: Fix snoop_file_poll()'s return type	2019-12-05 10:10:08 -08:00
atmel	drivers: soc: atmel: move sam9x60 under its own config flag	2019-12-10 00:44:53 +01:00
bcm	soc: bcm: brcmstb: biuctrl: Update programming for 7211	2020-01-05 13:44:04 -08:00
dove	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
fsl	soc: fsl: dpio: register dpio irq handlers after dpio create	2020-03-10 15:28:47 -05:00
gemini	soc: Add SoC driver for Gemini	2018-01-04 17:01:53 +01:00
imx	soc: imx: Enable compile testing of IMX_SCU_SOC	2020-01-09 17:20:10 +08:00
ixp4xx	soc: ixp4xx: Protect IXP4xx SoC drivers by ARCH_IXP4XX || COMPILE_TEST	2019-08-29 17:34:38 +02:00
lantiq	soc: lantiq: convert to devm_platform_ioremap_resource	2020-01-10 11:44:52 -08:00
mediatek	Merge branch 'v5.5-next/cmdq-stable' into v5.5-next/soc	2020-01-10 11:00:45 +01:00
qcom	soc: qcom: rpmhpd: Set 'active_only' for active only power domains	2020-01-07 15:19:30 -08:00
renesas	soc: renesas: Add ARCH_R8A7795[01] for existing R-Car H3	2020-01-06 11:08:43 +01:00
rockchip	ARM: SoC-related driver updates	2019-07-19 17:13:56 -07:00
samsung	soc: samsung: Rename Samsung and Exynos to lowercase	2020-01-07 20:46:31 +01:00
sifive	riscv: move sifive_l2_cache.h to include/soc	2020-01-12 10:12:44 -08:00
sunxi	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
tegra	ARM: SoC-related driver updates	2020-02-08 14:04:19 -08:00
ti	ARM: SoC-related driver updates	2020-02-08 14:04:19 -08:00
ux500	ARM: ux500: add missing of_node_put()	2019-07-23 09:49:32 +02:00
versatile	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
xilinx	ARM: SoC-related driver updates	2020-02-08 14:04:19 -08:00
zte	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194	2019-05-30 11:29:22 -07:00
Kconfig	riscv: move sifive_l2_cache.c to drivers/soc	2019-12-20 03:40:24 -08:00
Makefile	riscv: move sifive_l2_cache.c to drivers/soc	2019-12-20 03:40:24 -08:00