Laurentiu Tudor 5a1eb8b954 soc: fsl: qman_portals: defer probe after qman's probe ... Defer probe of qman portals after qman probing. This fixes the crash below, seen on NXP LS1043A SoCs: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000004 Mem abort info: ESR = 0x96000004 Exception class = 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 [0000000000000004] user address but active_mm is swapper Internal error: Oops: 96000004 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.18.0-rc1-next-20180622-00200-g986f5c179185 #9 Hardware name: LS1043A RDB Board (DT) pstate: 80000005 (Nzcv daif -PAN -UAO) pc : qman_set_sdest+0x74/0xa0 lr : qman_portal_probe+0x22c/0x470 sp : ffff00000803bbc0 x29: ffff00000803bbc0 x28: 0000000000000000 x27: ffff0000090c1b88 x26: ffff00000927cb68 x25: ffff00000927c000 x24: ffff00000927cb60 x23: 0000000000000000 x22: 0000000000000000 x21: ffff0000090e9000 x20: ffff800073b5c810 x19: ffff800027401298 x18: ffffffffffffffff x17: 0000000000000001 x16: 0000000000000000 x15: ffff0000090e96c8 x14: ffff80002740138a x13: ffff0000090f2000 x12: 0000000000000030 x11: ffff000008f25000 x10: 0000000000000000 x9 : ffff80007bdfd2c0 x8 : 0000000000004000 x7 : ffff80007393cc18 x6 : 0040000000000001 x5 : 0000000000000000 x4 : ffffffffffffffff x3 : 0000000000000004 x2 : ffff00000927c900 x1 : 0000000000000000 x0 : 0000000000000004 Process swapper/0 (pid: 1, stack limit = 0x(____ptrval____)) Call trace: qman_set_sdest+0x74/0xa0 platform_drv_probe+0x50/0xa8 driver_probe_device+0x214/0x2f8 __driver_attach+0xd8/0xe0 bus_for_each_dev+0x68/0xc8 driver_attach+0x20/0x28 bus_add_driver+0x108/0x228 driver_register+0x60/0x110 __platform_driver_register+0x40/0x48 qman_portal_driver_init+0x20/0x84 do_one_initcall+0x58/0x168 kernel_init_freeable+0x184/0x22c kernel_init+0x10/0x108 ret_from_fork+0x10/0x18 Code: f9400443 11001000 927e4800 8b000063 (b9400063) ---[ end trace 4f6d50489ecfb930 ]--- Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>		2018-10-01 17:47:43 -05:00
..
bman_ccsr.c	soc: fsl: qbman: add APIs to retrieve the probing status	2018-09-27 15:43:35 -05:00
bman_portal.c	soc/fsl/qbman: Rework portal mapping calls for ARM/PPC	2017-09-22 13:33:07 -05:00
bman_priv.h	soc/fsl/qbman: Rework portal mapping calls for ARM/PPC	2017-09-22 13:33:07 -05:00
bman_test_api.c	soc/bman: Add self-test for BMan driver	2016-09-25 02:38:59 -05:00
bman_test.c	soc/bman: Add self-test for BMan driver	2016-09-25 02:38:59 -05:00
bman_test.h	soc/bman: Add self-test for BMan driver	2016-09-25 02:38:59 -05:00
bman.c	soc/fsl/qbman: different register offsets on ARM	2017-09-22 13:33:07 -05:00
dpaa_sys.c	soc/fsl/qbman: Add common routine for QBMan private allocations	2017-09-22 13:33:07 -05:00
dpaa_sys.h	soc/fsl/qbman: Add missing headers on ARM	2017-09-22 13:33:07 -05:00
Kconfig	soc: fsl: cleanup Kconfig menu	2018-07-24 16:19:16 -05:00
Makefile	ARM: SoC driver updates for v4.15	2017-11-16 16:05:01 -08:00
qman_ccsr.c	soc: fsl: qbman: add APIs to retrieve the probing status	2018-09-27 15:43:35 -05:00
qman_portal.c	soc: fsl: qman_portals: defer probe after qman's probe	2018-10-01 17:47:43 -05:00
qman_priv.h	soc/fsl/qbman: add QMAN_REV32	2017-09-22 13:33:07 -05:00
qman_test_api.c	soc/qman: Handle endianness of h/w descriptors	2016-11-23 21:01:25 -06:00
qman_test_stash.c	soc/fsl/qman: test: use DEFINE_SPINLOCK()	2016-12-09 23:08:52 -06:00
qman_test.c	soc/qman: Add self-test for QMan driver	2016-09-25 02:39:00 -05:00
qman_test.h	soc/fsl/qbman: Use shared-dma-pool for QMan private memory allocations	2017-09-22 13:33:07 -05:00
qman.c	soc: fsl: qbman: qman: avoid allocating from non existing gen_pool	2018-09-25 13:57:25 -07:00