[PATCH 00/14] amdgpu: remove load and unload callbacks
Thomas Zimmermann
tzimmermann at suse.de
Wed Feb 5 09:04:39 UTC 2020
Hi Alex
Am 05.02.20 um 04:48 schrieb Alex Deucher:
> These are deprecated and the drm will soon start warning when drivers still
> use them. It was a long and twisty road, but seems to work.
>
> Alex Deucher (14):
> drm/amdgpu: rename amdgpu_debugfs_preempt_cleanup
> drm/amdgpu/ttm: move debugfs init into core amdgpu debugfs
> drm/amdgpu/pm: move debugfs init into core amdgpu debugfs
> drm/amdgpu/sa: move debugfs init into core amdgpu debugfs
> drm/amdgpu/fence: move debugfs init into core amdgpu debugfs
> drm/amdgpu/gem: move debugfs init into core amdgpu debugfs
> drm/amdgpu/regs: move debugfs init into core amdgpu debugfs
> drm/amdgpu/firmware: move debugfs init into core amdgpu debugfs
> drm/amdgpu: don't call drm_connector_register for non-MST ports
> drm/amdgpu/display: move debugfs init into core amdgpu debugfs
> drm/amd/display: move dpcd debugfs members setup
> drm/amdgpu/display: add a late register connector callback
> drm/amdgpu/ring: move debugfs init into core amdgpu debugfs
> drm/amdgpu: drop legacy drm load and unload callbacks
Trying out the patches (on drm-tip) resulted in a NULL-pointer access
during startup.
[ 10.059945]
==================================================================
[ 10.067285] BUG: KASAN: null-ptr-deref in drm_dp_aux_register+0xcc/0xf0
[ 10.073941] Read of size 8 at addr 0000000000000050 by task
systemd-udevd/379
[ 10.081118]
[ 10.089117]
==================================================================
[ 10.096675] BUG: kernel NULL pointer dereference, address:
0000000000000050
[ 10.103674] #PF: supervisor read access in kernel mode
[ 10.108840] #PF: error_code(0x0000) - not-present page
[ 10.114004] PGD 0 P4D 0
[ 10.116557] Oops: 0000 [#1] SMP KASAN PTI
[ 10.120586] CPU: 2 PID: 379 Comm: systemd-udevd Tainted: G B
E 5.5.0-1-default+ #235
[ 10.129500] Hardware name: Dell Inc. OptiPlex 9020/0N4YC8, BIOS A24
10/24/2018
[ 10.136775] RIP: 0010:drm_dp_aux_register+0xcc/0xf0
[ 10.136778] Code: 41 5c c3 4c 89 e7 e8 53 b4 28 00 85 c0 74 eb 48 89
ef 89 44 24 04 e8 23 1d 02 00 8b 44 24 04 eb d9 48 8d 7b 50 e8 d4 98 8f
ff <48> 8b 73 50 48 85 f6 75 aa 48 89 df e8 c3 98 8f ff 48 8b 33 eb 9d
[ 10.136779] RSP: 0018:ffffc90000a3f0b0 EFLAGS: 00010286
[ 10.165792] RAX: ffff8886dc5505c0 RBX: 0000000000000000 RCX:
dffffc0000000000
[ 10.165793] RDX: 0000000000000007 RSI: 0000000000000004 RDI:
0000000000000297
[ 10.165805] RBP: ffff8886c1f1c900 R08: ffffffff9f19ec71 R09:
fffffbfff4246b5d
[ 10.165806] R10: fffffbfff4246b5c R11: ffffffffa1235ae3 R12:
ffff8886c1f1c908
[ 10.165807] R13: 0000000000000000 R14: 0000000000000001 R15:
ffff8886bbd64000
[ 10.165809] FS: 00007f094629adc0(0000) GS:ffff8886fb600000(0000)
knlGS:0000000000000000
[ 10.165810] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 10.165812] CR2: 0000000000000050 CR3: 00000006dc558006 CR4:
00000000001606e0
[ 10.165813] Call Trace:
[ 10.165995] amdgpu_atombios_dp_aux_init+0xa2/0xf0 [amdgpu]
[ 10.230952] amdgpu_connector_add+0x8c3/0x1320 [amdgpu]
[ 10.231113] ? amdgpu_connector_is_dp12_capable+0xf0/0xf0 [amdgpu]
[ OK 10.242611] ? amdgpu_connector_is_dp12_capable+0xf0/0xf0 [amdgpu]
[ 10.242783]
amdgpu_atombios_get_connector_info_from_object_table+0x9fd/0xd60 [amdgpu]
0m] Started 10.258253] ?
amdgpu_atombios_has_dce_engine_info+0x110/0x110 [amdgpu]
[ 10.258259] ? match_held_lock+0x1b/0x240
1;39mForward Pas[ 10.270175] ? __lock_acquire+0x543/0xaf0
[ 10.270188] ? collect_percpu_times+0x3bb/0x400
[ 10.270198] ? rcu_read_lock_bh_held+0xa0/0xa0
[ 10.284629] ? debug_lockdep_rcu_enabled.part.0+0x16/0x30
[ 10.284634] ? __kmalloc+0x310/0x6e0
sword R�…s to P[ 10.293648] ? drm_mode_crtc_set_gamma_size+0x44/0xf0
[ 10.293834] ? dce_v6_0_sw_init+0x3c4/0x720 [amdgpu]
[ 10.293986] dce_v6_0_sw_init+0x3c4/0x720 [amdgpu]
lymouth Director[ 10.310201] ? si_dma_sw_init+0x8b/0x120 [amdgpu]
[ 10.310409] amdgpu_device_ip_init+0xbd/0x64e [amdgpu]
y Watch.
[[ 10.321430] amdgpu_device_init.cold+0xb92/0xf26 [amdgpu]
[ 10.321577] ? amdgpu_driver_load_kms+0x7a/0x370 [amdgpu]
[ 10.333506] ? rcu_read_lock_sched_held+0x85/0x90
[ 10.333689] ? amdgpu_device_has_dc_support+0x30/0x30 [amdgpu]
OK 10.344105] ? debug_lockdep_rcu_enabled.part.0+0x16/0x30
[ 10.344108] ? kmem_cache_alloc_trace+0x51e/0x6b0
[ 10.344112] ? kstrdup+0x44/0x60
[ 10.344269] amdgpu_driver_load_kms+0xc7/0x370 [amdgpu]
[ 10.344414] ? amdgpu_register_gpu_instance+0xd0/0xd0 [amdgpu]
[ 10.344581] ? amdgpu_dm_initialize_drm_device+0xe88/0x1544 [amdgpu]
m] Reached targe[ 10.376553] amdgpu_pci_probe+0x12e/0x1d0 [amdgpu]
[ 10.376698] ? amdgpu_pmops_runtime_idle+0xf0/0xf0 [amdgpu]
[ 10.388229] local_pci_probe+0x74/0xc0
t Paths[ 10.388233] pci_device_probe+0x1c9/0x2d0
[ 10.388252] ? pci_device_remove+0x180/0x180
[ 10.388258] ? sysfs_do_create_link_sd.isra.0+0x74/0xd0
.
[ 10.406977] really_probe+0x184/0x530
[ 10.406999] driver_probe_device+0x119/0x180
[ 10.407002] device_driver_attach+0x87/0x90
[ 10.407006] ? device_driver_attach+0x90/0x90
[ 10.407008] __driver_attach+0xb0/0x1a0
[ 10.407011] ? device_driver_attach+0x90/0x90
[ 10.407013] bus_for_each_dev+0xdd/0x120
[ 10.407016] ? subsys_dev_iter_exit+0x10/0x10
[ 10.407020] bus_add_driver+0x22c/0x2e0
[ 10.407025] driver_register+0xd8/0x160
[ 10.407027] ? 0xffffffffc0c23000
[ 10.407031] do_one_initcall+0xbd/0x3c0
[ 10.407034] ? trace_event_raw_event_initcall_finish+0x120/0x120
[ 10.407036] ? rcu_read_lock_sched_held+0x85/0x90
[ 10.407038] ? rcu_read_lock_bh_held+0xa0/0xa0
[ 10.407041] ? debug_lockdep_rcu_enabled.part.0+0x16/0x30
[ 10.407053] ? kmem_cache_alloc_trace+0x51e/0x6b0
[ 10.407056] ? kasan_unpoison_shadow+0x33/0x40
[ 10.407061] do_init_module+0xfd/0x390
[ 10.407065] load_module+0x255b/0x2910
[ 10.407077] ? layout_and_allocate+0x850/0x850
[ 10.407081] ? ima_post_read_file+0x141/0x150
[ 10.407084] ? ima_read_file+0x10/0x10
[ 10.407087] ? kernel_read+0x9b/0xc0
[ 10.407098] ? __do_sys_finit_module+0x110/0x180
[ 10.407100] __do_sys_finit_module+0x110/0x180
[ 10.407103] ? __ia32_sys_init_module+0x40/0x40
[ 10.407113] ? lockdep_hardirqs_off+0xbe/0x100
[ 10.407116] ? mark_held_locks+0x23/0xa0
[ 10.407118] ? do_syscall_64+0x14/0x2f0
[ 10.407121] do_syscall_64+0x72/0x2f0
[ 10.407125] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 10.407128] RIP: 0033:0x7f0946efb059
[ 10.547382] Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00
48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f
05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d f7 5d 0c 00 f7 d8 64 89 01 48
[ 10.547383] RSP: 002b:00007fff73b3e968 EFLAGS: 00000246 ORIG_RAX:
0000000000000139
[ 10.547386] RAX: ffffffffffffffda RBX: 00005590ab8e0220 RCX:
00007f0946efb059
[ 10.547387] RDX: 0000000000000000 RSI: 00007f0946b4489d RDI:
0000000000000010
[ 10.547388] RBP: 0000000000020000 R08: 0000000000000000 R09:
00005590ab8b9380
[ 10.547389] R10: 0000000000000010 R11: 0000000000000246 R12:
00007f0946b4489d
[ 10.547390] R13: 0000000000000000 R14: 00005590ab8ea990 R15:
00005590ab8e0220
[ 10.547396] Modules linked in: crc32c_intel(E) uas(E) serio_raw(E)
usb_storage(E) amdgpu(E+) sr_mod(E) cdrom(E) amd_iommu_v2(E)
gpu_sched(E) ttm(E) wmi(E) video(E) sg(E) dm_multipath(E) dm_mod(E)
scsi_dh_rdac(E) scsi_dh_emc(E) scsi_dh)
[ 10.547411] CR2: 0000000000000050
[ 10.547447] ---[ end trace c841ccbdd3b7b879 ]---
[ 10.547455] RIP: 0010:drm_dp_aux_register+0xcc/0xf0
[ 10.547459] Code: 41 5c c3 4c 89 e7 e8 53 b4 28 00 85 c0 74 eb 48 89
ef 89 44 24 04 e8 23 1d 02 00 8b 44 24 04 eb d9 48 8d 7b 50 e8 d4 98 8f
ff <48> 8b 73 50 48 85 f6 75 aa 48 89 df e8 c3 98 8f ff 48 8b 33 eb 9d
[ 10.547461] RSP: 0018:ffffc90000a3f0b0 EFLAGS: 00010286
[ 10.547464] RAX: ffff8886dc5505c0 RBX: 0000000000000000 RCX:
dffffc0000000000
[ 10.547466] RDX: 0000000000000007 RSI: 0000000000000004 RDI:
0000000000000297
[ 10.547468] RBP: ffff8886c1f1c900 R08: ffffffff9f19ec71 R09:
fffffbfff4246b5d
[ 10.547469] R10: fffffbfff4246b5c R11: ffffffffa1235ae3 R12:
ffff8886c1f1c908
[ 10.547470] R13: 0000000000000000 R14: 0000000000000001 R15:
ffff8886bbd64000
[ 10.547472] FS: 00007f094629adc0(0000) GS:ffff8886fb600000(0000)
knlGS:0000000000000000
[ 10.547475] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 10.547476] CR2: 0000000000000050 CR3: 00000006dc558006 CR4:
00000000001606e0
The device is
01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc.
[AMD/ATI] Oland [Radeon HD 8570 / R7 240/340 OEM] [1002:6611] (prog-if
00 [VGA controller])
Subsystem: Dell Radeon R5 240 OEM [1028:210b]
Flags: bus master, fast devsel, latency 0, IRQ 30
Memory at e0000000 (64-bit, prefetchable) [size=256M]
Memory at f7e00000 (64-bit, non-prefetchable) [size=256K]
I/O ports at e000 [size=256]
Expansion ROM at 000c0000 [disabled] [size=128K]
Capabilities: [48] Vendor Specific Information: Len=08 <?>
Capabilities: [50] Power Management version 3
Capabilities: [58] Express Legacy Endpoint, MSI 00
Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1
Len=010 <?>
Capabilities: [150] Advanced Error Reporting
Capabilities: [200] Resizable BAR <?>
Capabilities: [270] Secondary PCI Express <?>
Kernel driver in use: amdgpu
Kernel modules: amdgpu
Best regards
Thomas
>
> .../gpu/drm/amd/amdgpu/amdgpu_connectors.c | 1 -
> drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | 67 ++++++++++++++++++-
> drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.h | 2 +-
> drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 17 -----
> drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 13 +++-
> drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | 3 -
> drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c | 7 +-
> drivers/gpu/drm/amd/amdgpu/amdgpu_object.h | 1 +
> drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 9 +--
> drivers/gpu/drm/amd/amdgpu/amdgpu_pm.h | 2 +
> drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c | 15 +----
> drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h | 4 ++
> drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 14 +---
> drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h | 3 +
> drivers/gpu/drm/amd/amdgpu/dce_virtual.c | 1 -
> .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 26 +++----
> .../amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 3 +
> .../display/amdgpu_dm/amdgpu_dm_mst_types.c | 2 -
> 18 files changed, 112 insertions(+), 78 deletions(-)
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
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