Hi Dieter,
This is due to:
commit aa7187c5c640559ebc02caa0191c0db46b55b4a6
Author: Christian König <christian.koenig at amd.com>
Date: Thu Oct 26 12:00:36 2017 +0200
drm/amd/display: enable GPU VM support
Just set the bit so that DC does the hardware programming.
Signed-off-by: Christian König <christian.koenig at amd.com>
Reviewed-by: Andrey Grodzovsky <andrey.grodzovsky at amd.com>
And has already been diagnosed (somewhat) and last I heard the display
team is going to fix it.
Tom
On 30/10/17 10:06 AM, Dieter Nützel wrote:
> Hello Christian,
>
> is this for these warnings flooding my dmesg-log or do I have to open a
> new ticket:
>
> Current amd-staging-drm-next commit #7781a8c68a6a from you ;-)
>
> [ 6588.429302] WARNING: CPU: 5 PID: 2957 at
> drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services.h:132
> generic_reg_update_ex+0xdc/0x120 [amdgpu]
> [ 6588.429303] Modules linked in: fuse rfcomm rpcsec_gss_krb5
> auth_rpcgss nfsv4 nf_log_ipv6 xt_comment nf_log_ipv4 nf_log_common
> xt_LOG xt_limit dns_resolver nfs lockd nfnetlink_cthelper nfnetlink
> grace sunrpc fscache af_packet ipmi_ssif iscsi_ibft iscsi_boot_sysfs
> ip6t_REJECT nf_reject_ipv6 nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT
> nf_reject_ipv4 xt_pkttype xt_tcpudp iptable_filter ip6table_mangle
> nf_conntrack_netbios_ns nf_conntrack_broadcast nf_conntrack_ipv4
> nf_defrag_ipv4 ip_tables xt_conntrack nf_conntrack libcrc32c bnep
> ip6table_filter ip6_tables x_tables jc42 joydev snd_hda_codec_hdmi
> snd_hda_intel intel_powerclamp coretemp snd_hda_codec kvm_intel
> snd_hwdep kvm snd_hda_core snd_pcm e1000e iTCO_wdt hid_generic snd_timer
> iTCO_vendor_support snd usbhid irqbypass btusb crc32c_intel btrtl btbcm
> [ 6588.429340]Â pcspkr ptp soundcore btintel bluetooth pps_core
> i7core_edac i2c_i801 tpm_infineon tpm_tis lpc_ich shpchp tpm_tis_core
> ipmi_si tpm ipmi_devintf ipmi_msghandler ac button rfkill ecdh_generic
> acpi_cpufreq tcp_bbr raid1 md_mod amdkfd amd_iommu_v2 serio_raw amdgpu
> sr_mod cdrom chash i2c_algo_bit drm_kms_helper syscopyarea ehci_pci
> sysfillrect sysimgblt ehci_hcd fb_sys_fops mpt3sas raid_class ttm
> scsi_transport_sas usbcore drm sg dm_multipath dm_mod scsi_dh_rdac
> scsi_dh_emc scsi_dh_alua
> [ 6588.429370] CPU: 5 PID: 2957 Comm: X Tainted: GÂ Â Â Â Â Â Â W
> 4.13.0-rc5-1.g7262353-default+ #1
> [ 6588.429371] Hardware name: FUJITSUÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â PRIMERGY
> TX150 S7Â Â Â Â Â Â Â Â Â Â Â Â /D2759, BIOS 6.00 Rev. 1.19.2759.A1 09/26/2012
> [ 6588.429373] task: ffff8841a3658080 task.stack: ffff9ce4c3c38000
> [ 6588.429426] RIP: 0010:generic_reg_update_ex+0xdc/0x120 [amdgpu]
> [ 6588.429427] RSP: 0018:ffff9ce4c3c3b760 EFLAGS: 00010246
> [ 6588.429429] RAX: 0000000000000030 RBX: 0000000000000000 RCX:
> 0000000000000000
> [ 6588.429430] RDX: 0000000000000001 RSI: 0000000000000000 RDI:
> ffff8841a36c1980
> [ 6588.429431] RBP: ffff9ce4c3c3b7c8 R08: 00000000000000ff R09:
> ffff9ce4c3c3b778
> [ 6588.429432] R10: 0000000000000000 R11: 0000000000000002 R12:
> ffff9ce4c3c3b7f8
> [ 6588.429433] R13: 0000000000000000 R14: 0000000000000000 R15:
> 0000000000000000
> [ 6588.429436] FS:Â 00007f206d780a40(0000) GS:ffff8841bfd40000(0000)
> knlGS:0000000000000000
> [ 6588.429437] CS:Â 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 6588.429439] CR2: 00007f745636a000 CR3: 00000006654a5000 CR4:
> 00000000000006e0
> [ 6588.429439] Call Trace:
> [ 6588.429498]Â dce_mi_program_pte_vm+0x211/0x270 [amdgpu]
> [ 6588.429555]Â dce110_program_front_end_for_pipe+0x256/0x370 [amdgpu]
> [ 6588.429613]Â dce110_apply_ctx_for_surface+0xda/0x200 [amdgpu]
> [ 6588.429668]Â dc_commit_updates_for_stream+0x46a/0x4e0 [amdgpu]
> [ 6588.429725]Â dc_commit_planes_to_stream+0x322/0x380 [amdgpu]
> [ 6588.429783]Â amdgpu_dm_atomic_commit_tail+0x72a/0xaf0 [amdgpu]
> [ 6588.429787]Â ? ww_mutex_unlock+0x26/0x30
> [ 6588.429844]Â ? dm_plane_helper_prepare_fb+0xd2/0x230 [amdgpu]
> [ 6588.429853]Â ? drm_atomic_helper_wait_for_dependencies+0x89/0x160
> [drm_kms_helper]
> [ 6588.429861]Â ? drm_atomic_helper_swap_state+0x18d/0x360 [drm_kms_helper]
> [ 6588.429868]Â commit_tail+0x3f/0x60 [drm_kms_helper]
> [ 6588.429875]Â drm_atomic_helper_commit+0x106/0x110 [drm_kms_helper]
> [ 6588.429931]Â amdgpu_dm_atomic_commit+0x8d/0xa0 [amdgpu]
> [ 6588.429948]Â drm_atomic_commit+0x4b/0x50 [drm]
> [ 6588.429957]Â drm_atomic_helper_legacy_gamma_set+0x114/0x150
> [drm_kms_helper]
> [ 6588.429971]Â drm_mode_gamma_set_ioctl+0x127/0x190 [drm]
> [ 6588.429985]Â ? drm_mode_crtc_set_gamma_size+0xb0/0xb0 [drm]
> [ 6588.429997]Â drm_ioctl_kernel+0x5d/0xb0 [drm]
> [ 6588.430009]Â drm_ioctl+0x31a/0x3d0 [drm]
> [ 6588.430024]Â ? drm_mode_crtc_set_gamma_size+0xb0/0xb0 [drm]
> [ 6588.430027]Â ? vfs_writev+0xaa/0xf0
> [ 6588.430063]Â amdgpu_drm_ioctl+0x4f/0x90 [amdgpu]
> [ 6588.430065]Â do_vfs_ioctl+0x92/0x5c0
> [ 6588.430067]Â ? __fget+0x6e/0x90
> [ 6588.430069]Â ? __fget+0x6e/0x90
> [ 6588.430071]Â SyS_ioctl+0x79/0x90
> [ 6588.430075]Â entry_SYSCALL_64_fastpath+0x1e/0xa9
> [ 6588.430077] RIP: 0033:0x7f206b0fa077
> [ 6588.430078] RSP: 002b:00007ffd89a37978 EFLAGS: 00003246 ORIG_RAX:
> 0000000000000010
> [ 6588.430080] RAX: ffffffffffffffda RBX: 000000c3495ed210 RCX:
> 00007f206b0fa077
> [ 6588.430081] RDX: 00007ffd89a379b0 RSI: 00000000c02064a5 RDI:
> 000000000000000d
> [ 6588.430082] RBP: 000000c34a30a690 R08: 000000c349740ce0 R09:
> 000000c349740ee0
> [ 6588.430083] R10: 0000000000000001 R11: 0000000000003246 R12:
> 000000c3488cd300
> [ 6588.430084] R13: 000000c34a30a690 R14: 000000c34a6c3980 R15:
> 0000000000000020
> [ 6588.430086] Code: 45 21 e8 44 31 c3 41 39 d3 75 ab 45 84 d2 75 45 48
> 8b 7f 18 89 da 48 8b 07 ff 50 38 48 83 c4 48 89 d8 5b 41 5a 41 5c 41 5d
> 5d c3 <0f> ff eb c8 0f ff e9 5b ff ff ff 41 8b 0c 24 41 89 c0 49 83 c4
> [ 6588.430119] ---[ end trace 067f92f2eff57946 ]---
>
> Thanks,
> Dieter
>
> Am 30.10.2017 14:59, schrieb Christian König:
>> From: Christian König <christian.koenig at amd.com>
>>
>> When the mutex is locked just in the moment we copy it we end up with a
>> warning that we release a locked mutex.
>>
>> Fix this by properly reinitializing the mutex.
>>
>> Signed-off-by: Christian König <christian.koenig at amd.com>
>> ---
>> Â drivers/gpu/drm/ttm/ttm_bo_util.c | 1 +
>> Â 1 file changed, 1 insertion(+)
>>
>> diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c
>> b/drivers/gpu/drm/ttm/ttm_bo_util.c
>> index 78cb99be7146..e7a519f1849b 100644
>> --- a/drivers/gpu/drm/ttm/ttm_bo_util.c
>> +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
>> @@ -474,6 +474,7 @@ static int ttm_buffer_object_transfer(struct
>> ttm_buffer_object *bo,
>> Â Â Â Â INIT_LIST_HEAD(&fbo->lru);
>> Â Â Â Â INIT_LIST_HEAD(&fbo->swap);
>> Â Â Â Â INIT_LIST_HEAD(&fbo->io_reserve_lru);
>> +Â Â Â mutex_init(&fbo->wu_mutex);
>> Â Â Â Â fbo->moving = NULL;
>> Â Â Â Â drm_vma_node_reset(&fbo->vma_node);
>> Â Â Â Â atomic_set(&fbo->cpu_writers, 0);
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