d91a275e4e
Otherwise, below errors will be found on DIMGREY_CAVEFISH with DCN302. Error log observed in driver load: [drm:amdgpu_dm_irq_register_interrupt [amdgpu]] *ERROR* DM_IRQ: invalid irq_source: 0! Error observed in mode1_rest sequence: [ 27.265920] #PF: supervisor read access in kernel mode [ 27.265941] #PF: error_code(0x0000) - not-present page [ 27.265956] PGD 0 P4D 0 [ 27.265967] Oops: 0000 [#1] SMP NOPTI [ 27.265979] CPU: 0 PID: 1360 Comm: cat Tainted: G W 5.11.0-99b3786c1770 #20210323 [ 27.266005] Hardware name: System manufacturer System Product Name/PRIME Z390-A, BIOS 1401 11/26/2019 [ 27.266033] RIP: 0010:dal_irq_service_ack+0x25/0x60 [amdgpu] [ 27.266203] Code: 5d 5d c3 66 90 0f 1f 44 00 00 55 83 fe 61 48 89 e5 77 27 89 f0 48 8d 04 40 48 c1 e0 04 48 03 47 08 74 17 48 8b 50 28 48 89 c6 <48> 8b 52 08 48 85 d2 74 20 e8 1d 64 45 c9 5d c3 89 f2 48 c7 c7 f0 [ 27.266248] RSP: 0018:ffffa115824a3c08 EFLAGS: 00010082 [ 27.266270] RAX: ffffffffc0942c10 RBX: ffffffffc0942c10 RCX: 0000000000000000 [ 27.266288] RDX: 0000000000000000 RSI: ffffffffc0942c10 RDI: ffff88d509cba7a0 [ 27.266312] RBP: ffffa115824a3c08 R08: 0000000000000000 R09: 0000000000000001 [ 27.266335] R10: ffffa115824a3b20 R11: ffffa115824a3b58 R12: ffff88d509cba7a0 [ 27.266353] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000246 [ 27.266377] FS: 00007fb3e2438580(0000) GS:ffff88d50dc00000(0000) knlGS:0000000000000000 [ 27.266402] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.266417] CR2: 0000000000000008 CR3: 000000083e5ac006 CR4: 00000000003706f0 [ 27.266441] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.266464] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.266483] Call Trace: [ 27.266491] dal_irq_service_set+0x31/0x80 [amdgpu] [ 27.266639] dc_interrupt_set+0x24/0x30 [amdgpu] [ 27.266775] amdgpu_dm_set_dmub_trace_irq_state+0x22/0x30 [amdgpu] [ 27.266920] amdgpu_irq_update+0x57/0xa0 [amdgpu] [ 27.267030] amdgpu_irq_gpu_reset_resume_helper+0x64/0xa0 [amdgpu] [ 27.267135] amdgpu_do_asic_reset+0x211/0x420 [amdgpu] [ 27.267232] amdgpu_device_gpu_recover+0x517/0xa70 [amdgpu] [ 27.267325] gpu_recover_get+0x2e/0x60 [amdgpu] [ 27.267421] simple_attr_read+0x6b/0x130 [ 27.267441] debugfs_attr_read+0x49/0x70 [ 27.267454] full_proxy_read+0x5c/0x90 [ 27.267474] vfs_read+0xa1/0x190 [ 27.267486] ksys_read+0xa7/0xe0 [ 27.267501] __x64_sys_read+0x1a/0x20 [ 27.267521] do_syscall_64+0x37/0x80 [ 27.267541] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 27.267562] RIP: 0033:0x7fb3e2356142 Signed-off-by: Guchun Chen <guchun.chen@amd.com> Reviewed-by: Leo (Hanghong) Ma <hanghong.ma@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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.