7ac9be96b0
Disable the modesetting pipeline before release the radeon's fbdev
client. Fixes the following error:
[ 17.217408] WARNING: CPU: 5 PID: 1464 at drivers/gpu/drm/ttm/ttm_bo.c:326 ttm_bo_release+0x27e/0x2d0 [ttm]
[ 17.217418] Modules linked in: edac_mce_amd radeon(+) drm_ttm_helper ttm video drm_suballoc_helper drm_display_helper kvm irqbypass drm_kms_helper syscopyarea crc32_pclmul sysfillrect sha512_ssse3 sysimgblt sha512_generic cfbfillrect cfbimgblt wmi_bmof aesni_intel cfbcopyarea crypto_simd cryptd k10temp acpi_cpufreq wmi dm_mod
[ 17.217432] CPU: 5 PID: 1464 Comm: systemd-udevd Not tainted 6.4.0-rc4+ #1
[ 17.217436] Hardware name: Micro-Star International Co., Ltd. MS-7A38/B450M PRO-VDH MAX (MS-7A38), BIOS B.G0 07/26/2022
[ 17.217438] RIP: 0010:ttm_bo_release+0x27e/0x2d0 [ttm]
[ 17.217444] Code: 48 89 43 38 48 89 43 40 48 8b 5c 24 30 48 8b b5 40 08 00 00 48 8b 6c 24 38 48 83 c4 58 e9 7a 49 f7 e0 48 89 ef e9 6c fe ff ff <0f> 0b 48 83 7b 20 00 0f 84 b7 fd ff ff 0f 0b 0f 1f 00 e9 ad fd ff
[ 17.217448] RSP: 0018:ffffc9000095fbb0 EFLAGS: 00010202
[ 17.217451] RAX: 0000000000000001 RBX: ffff8881052c8de0 RCX: 0000000000000000
[ 17.217453] RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff8881052c8de0
[ 17.217455] RBP: ffff888104a66e00 R08: ffff8881052c8de0 R09: ffff888104a7cf08
[ 17.217457] R10: ffffc9000095fbe0 R11: ffffc9000095fbe8 R12: ffff8881052c8c78
[ 17.217458] R13: ffff8881052c8c78 R14: dead000000000100 R15: ffff88810528b108
[ 17.217460] FS: 00007f319fcbb8c0(0000) GS:ffff88881a540000(0000) knlGS:0000000000000000
[ 17.217463] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 17.217464] CR2: 000055dc8b0224a0 CR3: 000000010373d000 CR4: 0000000000750ee0
[ 17.217466] PKRU: 55555554
[ 17.217468] Call Trace:
[ 17.217470] <TASK>
[ 17.217472] ? __warn+0x97/0x160
[ 17.217476] ? ttm_bo_release+0x27e/0x2d0 [ttm]
[ 17.217481] ? report_bug+0x1ec/0x200
[ 17.217487] ? handle_bug+0x3c/0x70
[ 17.217490] ? exc_invalid_op+0x1f/0x90
[ 17.217493] ? preempt_count_sub+0xb5/0x100
[ 17.217496] ? asm_exc_invalid_op+0x16/0x20
[ 17.217500] ? ttm_bo_release+0x27e/0x2d0 [ttm]
[ 17.217505] ? ttm_resource_move_to_lru_tail+0x1ab/0x1d0 [ttm]
[ 17.217511] radeon_bo_unref+0x1a/0x30 [radeon]
[ 17.217547] radeon_gem_object_free+0x20/0x30 [radeon]
[ 17.217579] radeon_fbdev_fb_destroy+0x57/0x90 [radeon]
[ 17.217616] unregister_framebuffer+0x72/0x110
[ 17.217620] drm_client_dev_unregister+0x6d/0xe0
[ 17.217623] drm_dev_unregister+0x2e/0x90
[ 17.217626] drm_put_dev+0x26/0x90
[ 17.217628] pci_device_remove+0x44/0xc0
[ 17.217631] really_probe+0x257/0x340
[ 17.217635] __driver_probe_device+0x73/0x120
[ 17.217638] driver_probe_device+0x2c/0xb0
[ 17.217641] __driver_attach+0xa0/0x150
[ 17.217643] ? __pfx___driver_attach+0x10/0x10
[ 17.217646] bus_for_each_dev+0x67/0xa0
[ 17.217649] bus_add_driver+0x10e/0x210
[ 17.217651] driver_register+0x5c/0x120
[ 17.217653] ? __pfx_radeon_module_init+0x10/0x10 [radeon]
[ 17.217681] do_one_initcall+0x44/0x220
[ 17.217684] ? kmalloc_trace+0x37/0xc0
[ 17.217688] do_init_module+0x64/0x240
[ 17.217691] __do_sys_finit_module+0xb2/0x100
[ 17.217694] do_syscall_64+0x3b/0x90
[ 17.217697] entry_SYSCALL_64_after_hwframe+0x72/0xdc
[ 17.217700] RIP: 0033:0x7f319feaa5a9
[ 17.217702] Code: 08 89 e8 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 90 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 27 08 0d 00 f7 d8 64 89 01 48
[ 17.217706] RSP: 002b:00007ffc6bf3e7f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[ 17.217709] RAX: ffffffffffffffda RBX: 00005607204f3170 RCX: 00007f319feaa5a9
[ 17.217710] RDX: 0000000000000000 RSI: 00007f31a002eefd RDI: 0000000000000018
[ 17.217712] RBP: 00007f31a002eefd R08: 0000000000000000 R09: 00005607204f1860
[ 17.217714] R10: 0000000000000018 R11: 0000000000000246 R12: 0000000000020000
[ 17.217716] R13: 0000000000000000 R14: 0000560720522450 R15: 0000560720255899
[ 17.217718] </TASK>
[ 17.217719] ---[ end trace 0000000000000000 ]---
The buffer object backing the fbdev emulation got pinned twice: by the
fb_probe helper radeon_fbdev_create_pinned_object() and the modesetting
code when the framebuffer got displayed. It only got unpinned once by
the fbdev helper radeon_fbdev_destroy_pinned_object(). Hence TTM's BO-
release function complains about the pin counter. Forcing the outputs
off also undoes the modesettings pin increment.
Tested-by: Borislav Petkov (AMD) <bp@alien8.de>
Reported-by: Borislav Petkov <bp@alien8.de>
Closes: https://lore.kernel.org/dri-devel/20230603174814.GCZHt83pN+wNjf63sC@fat_crate.local/
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes:
|
||
|---|---|---|
| Documentation | ||
| LICENSES | ||
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
README
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.