mixer_regs_dump() was called in mixer_run(), which was called
under the register spinlock in mixer_graph_buffer() and
vp_video_buffer().
This would trigger a sysmmu pagefault with drm.debug=0xff because
of the large delay caused by the register dumping.
To keep consistency also move register dumping out of mixer_stop(),
which is the counterpart to mixer_run().
Kernel dump:
[ 131.296529] [drm:mixer_win_commit] win: 2
[ 131.300693] [drm:mixer_regs_dump] MXR_STATUS = 00000081
[ 131.305888] [drm:mixer_regs_dump] MXR_CFG = 000007d5
[ 131.310835] [drm:mixer_regs_dump] MXR_INT_EN = 00000000
[ 131.316043] [drm:mixer_regs_dump] MXR_INT_STATUS = 00000900
[ 131.321598] [drm:mixer_regs_dump] MXR_LAYER_CFG = 00000321
[ 131.327066] [drm:mixer_regs_dump] MXR_VIDEO_CFG = 00000000
[ 131.332535] [drm:mixer_regs_dump] MXR_GRAPHIC0_CFG = 00310700
[ 131.338263] [drm:mixer_regs_dump] MXR_GRAPHIC0_BASE = 20c00000
[ 131.344079] [drm:mixer_regs_dump] MXR_GRAPHIC0_SPAN = 00000780
[ 131.349895] [drm:mixer_regs_dump] MXR_GRAPHIC0_WH = 07800438
[ 131.355537] [drm:mixer_regs_dump] MXR_GRAPHIC0_SXY = 00000000
[ 131.361265] [drm:mixer_regs_dump] MXR_GRAPHIC0_DXY = 00000000
[ 131.366994] [drm:mixer_regs_dump] MXR_GRAPHIC1_CFG = 00000000
[ 131.372723] [drm:mixer_regs_dump] MXR_GRAPHIC1_BASE = 00000000
[ 131.378539] [drm:mixer_regs_dump] MXR_GRAPHIC1_SPAN = 00000000
[ 131.384354] [drm:mixer_regs_dump] MXR_GRAPHIC1_WH = 00000000
[ 131.389996] [drm:mixer_regs_dump] MXR_GRAPHIC1_SXY = 00000000
[ 131.395725] [drm:mixer_regs_dump] MXR_GRAPHIC1_DXY = 00000000
[ 131.401486] PAGE FAULT occurred at 0x0 by 12e20000.sysmmu(Page table base:
0x6d990000)
[ 131.409353] Lv1 entry: 0x6e0f2401
[ 131.412753] ------------[ cut here ]------------
[ 131.417339] kernel BUG at drivers/iommu/exynos-iommu.c:358!
[ 131.422894] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM
[ 131.428709] Modules linked in: ecb bridge stp llc bnep btrfs xor xor_neon
zlib_inflate zlib_deflate raid6_pq btusb bluetooth usb_storage s5p_jpeg
videobuf2_dma_contig videobuf2_memops v4l2_mem2mem videobuf2_core
[ 131.447461] CPU: 0 PID: 2418 Comm: lt-modetest Tainted: G W
4.0.1-debug+ #3
[ 131.455530] Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
[ 131.461607] task: ee194100 ti: ec4fe000 task.ti: ec4fe000
[ 131.466995] PC is at exynos_sysmmu_irq+0x2a0/0x2a8
[ 131.471766] LR is at vprintk_emit+0x268/0x594
[ 131.476103] pc : [<c02781a4>] lr : [<c00650d0>] psr: a00001d3
[ 131.476103] sp : ec4ff9d8 ip : 00000000 fp : ec4ffa14
[ 131.487559] r10: ffffffda r9 : ee206e28 r8 : ee2d1a10
[ 131.492767] r7 : 00000000 r6 : 00000000 r5 : 00000000 r4 : ee206e10
[ 131.499277] r3 : c06fca20 r2 : 00000000 r1 : 00000000 r0 : ee28be00
[ 131.505788] Flags: NzCv IRQs off FIQs off Mode SVC_32 ISA ARM Segment
user
[ 131.513079] Control: 10c5387d Table: 6c72404a DAC: 00000015
[ 131.518808] Process lt-modetest (pid: 2418, stack limit = 0xec4fe218)
[ 131.525231] Stack: (0xec4ff9d8 to 0xec500000)
[ 131.529571] f9c0:
ec4ff9e4 c03a0c40
[ 131.537732] f9e0: bbfa6e35 6d990000 6d161c3d ee20a900 ee04a7e0 00000028
ee007000 00000000
[ 131.545891] fa00: 00000000 c06fb1fc ec4ffa5c ec4ffa18 c0066a34 c0277f10
ee257664 0000000b
[ 131.554050] fa20: ec4ffa5c c06fafbb ee04a780 c06fb1e8 00000000 ee04a780
ee04a7e0 ee20a900
[ 131.562209] fa40: ee007000 00000015 ec4ffb48 ee008000 ec4ffa7c ec4ffa60
c0066c90 c00669e0
[ 131.570369] fa60: 00020000 ee04a780 ee04a7e0 00001000 ec4ffa94 ec4ffa80
c0069c6c c0066c58
[ 131.578528] fa80: 00000028 ee004450 ec4ffaac ec4ffa98 c0066028 c0069bac
000000a0 c06e19b4
[ 131.586687] faa0: ec4ffad4 ec4ffab0 c0223678 c0066000 c02235dc 00000015
00000000 00000015
[ 131.594846] fac0: ec4ffc80 00000001 ec4ffaec ec4ffad8 c0066028 c02235e8
00000089 c06bfc54
[ 131.603005] fae0: ec4ffb1c ec4ffaf0 c006633c c0066000 ec4ffb48 f002000c
00000025 00000015
[ 131.611165] fb00: c06c680c ec4ffb48 f0020000 ee008000 ec4ffb44 ec4ffb20
c000867c c00662c4
[ 131.619324] fb20: c02046ac 60000153 ffffffff ec4ffb7c 00000000 00000101
ec4ffbb4 ec4ffb48
[ 131.627483] fb40: c0013240 c0008650 00000001 ee257508 00000002 00000001
ee257504 ee257508
[ 131.635642] fb60: 00000000 c06bf27c 00000000 00000101 ee008000 ec4ffbb4
00000000 ec4ffb90
[ 131.643802] fb80: c002e124 c02046ac 60000153 ffffffff c002e09c 00000000
c06c6080 00000283
[ 131.651960] fba0: 00000001 c06fb1ac ec4ffc0c ec4ffbb8 c002d690 c002e0a8
ee78d080 ee008000
[ 131.660120] fbc0: 00400000 c04eb3b0 ffff7c44 c06c6100 c06fdac0 0000000a
c06bf2f0 c06c6080
[ 131.668279] fbe0: c06bfc54 c06bfc54 00000000 00000025 00000000 00000001
ec4ffc80 ee008000
[ 131.676438] fc00: ec4ffc24 ec4ffc10 c002dbb8 c002d564 00000089 c06bfc54
ec4ffc54 ec4ffc28
[ 131.684597] fc20: c0066340 c002dafc ec4ffc80 f002000c 0000001c 0000000c
c06c680c ec4ffc80
[ 131.692757] fc40: f0020000 00000080 ec4ffc7c ec4ffc58 c000867c c00662c4
c04e6624 60000053
[ 131.700916] fc60: ffffffff ec4ffcb4 c072df54 ee22d010 ec4ffcdc ec4ffc80
c0013240 c0008650
[ 131.709075] fc80: ee22d664 ee194100 00000000 ec4fe000 60000053 00000400
00000002 ee22d420
[ 131.717234] fca0: c072df54 ee22d010 00000080 ec4ffcdc ec4ffcc8 ec4ffcc8
c04e6620 c04e6624
[ 131.725393] fcc0: 60000053 ffffffff ec4fe000 c072df54 ec4ffd34 ec4ffce0
c02b64d0 c04e6618
[ 131.733552] fce0: ec4ffcf8 00000000 00000000 60000053 00010000 00010000
00000000 200cb000
[ 131.741712] fd00: 20080000 ee22d664 00000001 ee256000 ee261400 ee22d420
00000080 00000080
[ 131.749871] fd20: ee256000 00000280 ec4ffd74 ec4ffd38 c02a8844 c02b5fec
00000080 00000280
[ 131.758030] fd40: 000001e0 00000000 00000000 00000280 000001e0 ee22d220
01e00000 00000002
[ 131.766189] fd60: ee22d420 ee261400 ec4ffdbc ec4ffd78 c0293cbc c02a87a4
00000080 00000280
[ 131.774348] fd80: 000001e0 00000000 00000000 02800000 01e00000 ee261400
ee22d460 ee261400
[ 131.782508] fda0: ee22d420 00000000 01e00000 000001e0 ec4ffe24 ec4ffdc0
c0297800 c0293b24
[ 131.790667] fdc0: 00000080 00000280 000001e0 00000000 00000000 02800000
01e00000 ec4ffdf8
[ 131.798826] fde0: c028db00 00000080 00000080 ee256000 02800000 00000000
ec4ffe24 c06c6448
[ 131.806985] fe00: c072df54 000000b7 ee013800 ec4ffe54 edbf7300 ec4ffe54
ec4fff04 ec4ffe28
[ 131.815145] fe20: c028a848 c029768c 00000001 c06195d8 ec4ffe5c ec4ffe40
c0297680 c0521f6c
[ 131.823304] fe40: 00000030 bed45d38 00000030 c03064b7 ec4ffe8c 00000011
00000015 00000022
[ 131.831463] fe60: 00000000 00000080 00000080 00000280 000001e0 00000000
00000000 01e00000
[ 131.839622] fe80: 02800000 00000000 00000000 0004b000 00000000 00000000
c00121e4 c0011080
[ 131.847781] fea0: c00110a4 00000000 00000000 00000000 ec4ffeec ec4ffec0
c00110f0 c00121cc
[ 131.855940] fec0: 00000000 c00e7fec ec4ffeec ec4ffed8 c004af2c dc8ba201
edae4fc0 edbf7000
[ 131.864100] fee0: edbf7000 00000003 bed45d38 00000003 bed45d38 ee3f2040
ec4fff7c ec4fff08
[ 131.872259] ff00: c010b62c c028a684 edae4fc0 00000000 00000000 b6666000
ec40d108 edae4fc4
[ 131.880418] ff20: ec4fff6c ec4fff30 c00e7fec c02207b0 000001f9 00000000
edae5008 ec40d110
[ 131.888577] ff40: 00070800 edae5008 edae4fc0 00070800 b6666000 edbf7000
edbf7000 c03064b7
[ 131.896736] ff60: bed45d38 00000003 ec4fe000 00000000 ec4fffa4 ec4fff80
c010b84c c010b208
[ 131.904896] ff80: 00000022 00000000 bed45d38 c03064b7 00000036 c000ede4
00000000 ec4fffa8
[ 131.913055] ffa0: c000ec40 c010b81c 00000000 bed45d38 00000003 c03064b7
bed45d38 00000022
[ 131.921214] ffc0: 00000000 bed45d38 c03064b7 00000036 00000080 00000080
00000000 000001e0
[ 131.929373] ffe0: b6da4064 bed45d1c b6d98968 b6e8082c 60000050 00000003
00000000 00000000
[ 131.937529] Backtrace:
[ 131.939967] [<c0277f04>] (exynos_sysmmu_irq) from [<c0066a34>]
(handle_irq_event_percpu+0x60/0x278)
[ 131.948988] r10:c06fb1fc r9:00000000 r8:00000000 r7:ee007000 r6:00000028
r5:ee04a7e0
[ 131.956799] r4:ee20a900
[ 131.959320] [<c00669d4>] (handle_irq_event_percpu) from [<c0066c90>]
(handle_irq_event+0x44/0x64)
[ 131.968170] r10:ee008000 r9:ec4ffb48 r8:00000015 r7:ee007000 r6:ee20a900
r5:ee04a7e0
[ 131.975982] r4:ee04a780
[ 131.978504] [<c0066c4c>] (handle_irq_event) from [<c0069c6c>]
(handle_level_irq+0xcc/0x144)
[ 131.986832] r6:00001000 r5:ee04a7e0 r4:ee04a780 r3:00020000
[ 131.992478] [<c0069ba0>] (handle_level_irq) from [<c0066028>]
(generic_handle_irq+0x34/0x44)
[ 132.000894] r5:ee004450 r4:00000028
[ 132.004459] [<c0065ff4>] (generic_handle_irq) from [<c0223678>]
(combiner_handle_cascade_irq+0x9c/0x108)
[ 132.013914] r4:c06e19b4 r3:000000a0
[ 132.017476] [<c02235dc>] (combiner_handle_cascade_irq) from [<c0066028>]
(generic_handle_irq+0x34/0x44)
[ 132.026847] r8:00000001 r7:ec4ffc80 r6:00000015 r5:00000000 r4:00000015
r3:c02235dc
[ 132.034576] [<c0065ff4>] (generic_handle_irq) from [<c006633c>]
(__handle_domain_irq+0x84/0xf0)
[ 132.043252] r4:c06bfc54 r3:00000089
[ 132.046815] [<c00662b8>] (__handle_domain_irq) from [<c000867c>]
(gic_handle_irq+0x38/0x70)
[ 132.055144] r10:ee008000 r9:f0020000 r8:ec4ffb48 r7:c06c680c r6:00000015
r5:00000025
[ 132.062956] r4:f002000c r3:ec4ffb48
[ 132.066520] [<c0008644>] (gic_handle_irq) from [<c0013240>]
(__irq_svc+0x40/0x74)
[ 132.073980] Exception stack(0xec4ffb48 to 0xec4ffb90)
[ 132.079016] fb40: 00000001 ee257508 00000002 00000001
ee257504 ee257508
[ 132.087176] fb60: 00000000 c06bf27c 00000000 00000101 ee008000 ec4ffbb4
00000000 ec4ffb90
[ 132.095333] fb80: c002e124 c02046ac 60000153 ffffffff
[ 132.100367] r9:00000101 r8:00000000 r7:ec4ffb7c r6:ffffffff r5:60000153
r4:c02046ac
[ 132.108098] [<c002e09c>] (tasklet_hi_action) from [<c002d690>]
(__do_softirq+0x138/0x38c)
[ 132.116251] r8:c06fb1ac r7:00000001 r6:00000283 r5:c06c6080 r4:00000000
r3:c002e09c
[ 132.123980] [<c002d558>] (__do_softirq) from [<c002dbb8>]
(irq_exit+0xc8/0x104)
[ 132.131268] r10:ee008000 r9:ec4ffc80 r8:00000001 r7:00000000 r6:00000025
r5:00000000
[ 132.139080] r4:c06bfc54
[ 132.141600] [<c002daf0>] (irq_exit) from [<c0066340>]
(__handle_domain_irq+0x88/0xf0)
[ 132.149409] r4:c06bfc54 r3:00000089
[ 132.152971] [<c00662b8>] (__handle_domain_irq) from [<c000867c>]
(gic_handle_irq+0x38/0x70)
[ 132.161300] r10:00000080 r9:f0020000 r8:ec4ffc80 r7:c06c680c r6:0000000c
r5:0000001c
[ 132.169112] r4:f002000c r3:ec4ffc80
[ 132.172675] [<c0008644>] (gic_handle_irq) from [<c0013240>]
(__irq_svc+0x40/0x74)
[ 132.180137] Exception stack(0xec4ffc80 to 0xec4ffcc8)
[ 132.185173] fc80: ee22d664 ee194100 00000000 ec4fe000 60000053 00000400
00000002 ee22d420
[ 132.193332] fca0: c072df54 ee22d010 00000080 ec4ffcdc ec4ffcc8 ec4ffcc8
c04e6620 c04e6624
[ 132.201489] fcc0: 60000053 ffffffff
[ 132.204961] r9:ee22d010 r8:c072df54 r7:ec4ffcb4 r6:ffffffff r5:60000053
r4:c04e6624
[ 132.212694] [<c04e660c>] (_raw_spin_unlock_irqrestore) from [<c02b64d0>]
(mixer_win_commit+0x4f0/0xcc8)
[ 132.222060] r4:c072df54 r3:ec4fe000
[ 132.225625] [<c02b5fe0>] (mixer_win_commit) from [<c02a8844>]
(exynos_update_plane+0xac/0xb8)
[ 132.234126] r10:00000280 r9:ee256000 r8:00000080 r7:00000080 r6:ee22d420
r5:ee261400
[ 132.241937] r4:ee256000
[ 132.244461] [<c02a8798>] (exynos_update_plane) from [<c0293cbc>]
(__setplane_internal+0x1a4/0x2c0)
[ 132.253395] r7:ee261400 r6:ee22d420 r5:00000002 r4:01e00000
[ 132.259041] [<c0293b18>] (__setplane_internal) from [<c0297800>]
(drm_mode_setplane+0x180/0x244)
[ 132.267804] r9:000001e0 r8:01e00000 r7:00000000 r6:ee22d420 r5:ee261400
r4:ee22d460
[ 132.275535] [<c0297680>] (drm_mode_setplane) from [<c028a848>]
(drm_ioctl+0x1d0/0x58c)
[ 132.283428] r10:ec4ffe54 r9:edbf7300 r8:ec4ffe54 r7:ee013800 r6:000000b7
r5:c072df54
[ 132.291240] r4:c06c6448
[ 132.293763] [<c028a678>] (drm_ioctl) from [<c010b62c>]
(do_vfs_ioctl+0x430/0x614)
[ 132.301222] r10:ee3f2040 r9:bed45d38 r8:00000003 r7:bed45d38 r6:00000003
r5:edbf7000
[ 132.309034] r4:edbf7000
[ 132.311555] [<c010b1fc>] (do_vfs_ioctl) from [<c010b84c>]
(SyS_ioctl+0x3c/0x64)
[ 132.318842] r10:00000000 r9:ec4fe000 r8:00000003 r7:bed45d38 r6:c03064b7
r5:edbf7000
[ 132.326654] r4:edbf7000
[ 132.329176] [<c010b810>] (SyS_ioctl) from [<c000ec40>]
(ret_fast_syscall+0x0/0x34)
[ 132.336723] r8:c000ede4 r7:00000036 r6:c03064b7 r5:bed45d38 r4:00000000
r3:00000022
[ 132.344451] Code: e3130002 0affffaf eb09a67d eaffffad (e7f001f2)
[ 132.350528] ---[ end trace d428689b94df895c ]---
[ 132.355126] Kernel panic - not syncing: Fatal exception in interrupt
[ 132.361465] CPU2: stopping
[ 132.364155] CPU: 2 PID: 0 Comm: swapper/2 Tainted: G D W
4.0.1-debug+ #3
[ 132.371791] Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
[ 132.377866] Backtrace:
[ 132.380304] [<c0012484>] (dump_backtrace) from [<c001269c>]
(show_stack+0x18/0x1c)
[ 132.387849] r6:c06e158c r5:ffffffff r4:00000000 r3:dc8ba201
[ 132.393497] [<c0012684>] (show_stack) from [<c04dfb94>]
(dump_stack+0x88/0xc8)
[ 132.400698] [<c04dfb0c>] (dump_stack) from [<c0014894>]
(handle_IPI+0x1c8/0x2c4)
[ 132.408073] r6:c06bfc54 r5:c06bfc54 r4:00000005 r3:ee0b0000
[ 132.413718] [<c00146cc>] (handle_IPI) from [<c00086b0>]
(gic_handle_irq+0x6c/0x70)
[ 132.421267] r9:f0028000 r8:ee0b1f48 r7:c06c680c r6:fffffff5 r5:00000005
r4:f002800c
[ 132.428995] [<c0008644>] (gic_handle_irq) from [<c0013240>]
(__irq_svc+0x40/0x74)
[ 132.436457] Exception stack(0xee0b1f48 to 0xee0b1f90)
[ 132.441493] 1f40: 00000001 00000000 00000000 c00206c0
c06c6518 c04eb3a4
[ 132.449653] 1f60: 00000000 00000000 c06c0dc0 00000001 c06fb774 ee0b1f9c
ee0b1fa0 ee0b1f90
[ 132.457811] 1f80: c000f82c c000f830 600f0053 ffffffff
[ 132.462844] r9:00000001 r8:c06c0dc0 r7:ee0b1f7c r6:ffffffff r5:600f0053
r4:c000f830
[ 132.470575] [<c000f7f0>] (arch_cpu_idle) from [<c005b6e8>]
(cpu_startup_entry+0x318/0x4ec)
[ 132.478818] [<c005b3d0>] (cpu_startup_entry) from [<c00144d0>]
(secondary_start_kernel+0xf4/0x100)
[ 132.487755] r7:c06fd440
[ 132.490279] [<c00143dc>] (secondary_start_kernel) from [<40008744>]
(0x40008744)
[ 132.497651] r4:6e09006a r3:c000872c
[ 132.501210] CPU3: stopping
[ 132.503904] CPU: 3 PID: 0 Comm: swapper/3 Tainted: G D W
4.0.1-debug+ #3
[ 132.511539] Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
[ 132.517614] Backtrace:
[ 132.520051] [<c0012484>] (dump_backtrace) from [<c001269c>]
(show_stack+0x18/0x1c)
[ 132.527597] r6:c06e158c r5:ffffffff r4:00000000 r3:dc8ba201
[ 132.533243] [<c0012684>] (show_stack) from [<c04dfb94>]
(dump_stack+0x88/0xc8)
[ 132.540446] [<c04dfb0c>] (dump_stack) from [<c0014894>]
(handle_IPI+0x1c8/0x2c4)
[ 132.547820] r6:c06bfc54 r5:c06bfc54 r4:00000005 r3:ee0b2000
[ 132.553466] [<c00146cc>] (handle_IPI) from [<c00086b0>]
(gic_handle_irq+0x6c/0x70)
[ 132.561014] r9:f002c000 r8:ee0b3f48 r7:c06c680c r6:fffffff5 r5:00000005
r4:f002c00c
[ 132.568743] [<c0008644>] (gic_handle_irq) from [<c0013240>]
(__irq_svc+0x40/0x74)
[ 132.576205] Exception stack(0xee0b3f48 to 0xee0b3f90)
[ 132.581241] 3f40: 00000001 00000000 00000000 c00206c0
c06c6518 c04eb3a4
[ 132.589401] 3f60: 00000000 00000000 c06c0dc0 00000001 c06fb774 ee0b3f9c
ee0b3fa0 ee0b3f90
[ 132.597558] 3f80: c000f82c c000f830 600f0053 ffffffff
[ 132.602591] r9:00000001 r8:c06c0dc0 r7:ee0b3f7c r6:ffffffff r5:600f0053
r4:c000f830
[ 132.610321] [<c000f7f0>] (arch_cpu_idle) from [<c005b6e8>]
(cpu_startup_entry+0x318/0x4ec)
[ 132.618566] [<c005b3d0>] (cpu_startup_entry) from [<c00144d0>]
(secondary_start_kernel+0xf4/0x100)
[ 132.627503] r7:c06fd440
[ 132.630023] [<c00143dc>] (secondary_start_kernel) from [<40008744>]
(0x40008744)
[ 132.637399] r4:6e09006a r3:c000872c
[ 132.640958] CPU1: stopping
[ 132.643651] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G D W
4.0.1-debug+ #3
[ 132.651287] Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
[ 132.657362] Backtrace:
[ 132.659799] [<c0012484>] (dump_backtrace) from [<c001269c>]
(show_stack+0x18/0x1c)
[ 132.667344] r6:c06e158c r5:ffffffff r4:00000000 r3:dc8ba201
[ 132.672991] [<c0012684>] (show_stack) from [<c04dfb94>]
(dump_stack+0x88/0xc8)
[ 132.680194] [<c04dfb0c>] (dump_stack) from [<c0014894>]
(handle_IPI+0x1c8/0x2c4)
[ 132.687569] r6:c06bfc54 r5:c06bfc54 r4:00000005 r3:ee0ae000
[ 132.693214] [<c00146cc>] (handle_IPI) from [<c00086b0>]
(gic_handle_irq+0x6c/0x70)
[ 132.700762] r9:f0024000 r8:ee0aff48 r7:c06c680c r6:fffffff5 r5:00000005
r4:f002400c
[ 132.708491] [<c0008644>] (gic_handle_irq) from [<c0013240>]
(__irq_svc+0x40/0x74)
[ 132.715953] Exception stack(0xee0aff48 to 0xee0aff90)
[ 132.720989] ff40: 00000001 00000000 00000000 c00206c0
c06c6518 c04eb3a4
[ 132.729149] ff60: 00000000 00000000 c06c0dc0 00000001 c06fb774 ee0aff9c
ee0affa0 ee0aff90
[ 132.737306] ff80: c000f82c c000f830 60070053 ffffffff
[ 132.742339] r9:00000001 r8:c06c0dc0 r7:ee0aff7c r6:ffffffff r5:60070053
r4:c000f830
[ 132.750069] [<c000f7f0>] (arch_cpu_idle) from [<c005b6e8>]
(cpu_startup_entry+0x318/0x4ec)
[ 132.758314] [<c005b3d0>] (cpu_startup_entry) from [<c00144d0>]
(secondary_start_kernel+0xf4/0x100)
[ 132.767251] r7:c06fd440
[ 132.769772] [<c00143dc>] (secondary_start_kernel) from [<40008744>]
(0x40008744)
[ 132.777146] r4:6e09006a r3:c000872c
[ 132.780709] ---[ end Kernel panic - not syncing: Fatal exception in interrupt
Signed-off-by: Tobias Jakobi <tjakobi at math.uni-bielefeld.de>
---
drivers/gpu/drm/exynos/exynos_mixer.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c
b/drivers/gpu/drm/exynos/exynos_mixer.c
index 1a07fdd..ff15702 100644
--- a/drivers/gpu/drm/exynos/exynos_mixer.c
+++ b/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -365,8 +365,6 @@ static void mixer_run(struct mixer_context *ctx)
struct mixer_resources *res = &ctx->mixer_res;
mixer_reg_writemask(res, MXR_STATUS, ~0, MXR_STATUS_REG_RUN);
-
- mixer_regs_dump(ctx);
}
static void mixer_stop(struct mixer_context *ctx)
@@ -379,8 +377,6 @@ static void mixer_stop(struct mixer_context *ctx)
while (!(mixer_reg_read(res, MXR_STATUS) & MXR_STATUS_REG_IDLE) &&
--timeout)
usleep_range(10000, 12000);
-
- mixer_regs_dump(ctx);
}
static void vp_video_buffer(struct mixer_context *ctx, int win)
@@ -480,6 +476,7 @@ static void vp_video_buffer(struct mixer_context *ctx, int
win)
mixer_vsync_set_update(ctx, true);
spin_unlock_irqrestore(&res->reg_slock, flags);
+ mixer_regs_dump(ctx);
vp_regs_dump(ctx);
}
@@ -620,6 +617,8 @@ static void mixer_graph_buffer(struct mixer_context *ctx,
int win)
mixer_vsync_set_update(ctx, true);
spin_unlock_irqrestore(&res->reg_slock, flags);
+
+ mixer_regs_dump(ctx);
}
static void vp_win_reset(struct mixer_context *ctx)
@@ -1073,6 +1072,7 @@ static void mixer_poweroff(struct mixer_context *ctx)
mutex_unlock(&ctx->mixer_mutex);
mixer_stop(ctx);
+ mixer_regs_dump(ctx);
mixer_window_suspend(ctx);
ctx->int_en = mixer_reg_read(res, MXR_INT_EN);
--
2.0.5
