dri-devel October 2021

dri-devel@lists.freedesktop.org

347 participants
825 discussions

[Regression] No framebuffer console on Rpi since 5.14-rc1
by Stefan Wahren 20 May '22

20 May '22

Hi guys, starting with Linux 5.14-rc1 the framebuffer console on Raspberry Pi 3/4 (no U-Boot, multi_v7_defconfig) isn't available anymore. The display shows the rainbow screen from the bootloader and than the HDMI screen goes black instead of kernel messages. I bisected the issue: 62fb9874f5da54fdb243003b386128037319b219 good e73f0f0ee7541171d89f2e2491130c7771ba58d3 bad e058a84bfddc42ba356a2316f2cf1141974625c9 bad a6eaf3850cb171c328a8b0db6d3c79286a1eba9d good … [View More]

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[Bug 201497] New: [amdgpu]: '*ERROR* No EDID read' is back in 4.19
by bugzilla-daemon＠bugzilla.kernel.org 19 May '22

19 May '22

https://bugzilla.kernel.org/show_bug.cgi?id=201497 Bug ID: 201497 Summary: [amdgpu]: '*ERROR* No EDID read' is back in 4.19 Product: Drivers Version: 2.5 Kernel Version: 4.19 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri(a)kernel-bugs.osdl.org … [View More]

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DSI Bridge switching
by Jagan Teki 13 May '22

13 May '22

Hi, I think this seems to be a known use case for industrial these days with i.mx8m. The host DSI would configure with two bridges one for DSI to LVDS (SN65DSI83) and another for DSI to HDMI Out (ADV7535). Technically we can use only one bridge at a time as host DSI support single out port. So we can have two separate device tree files for LVDS and HDMI and load them static. But, one of the use cases is to support both of them in single dts, and - Turn On LVDS (default) - Turn Off LVDS then … [View More]

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BUG: unable to handle kernel paging request in bitfill_aligned (2)
by syzbot 12 May '22

12 May '22

Hello, syzbot found the following issue on: HEAD commit: 0062442e Merge tag 'for-linus' of git://git.kernel.org/pub.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=16584b81500000 kernel config: https://syzkaller.appspot.com/x/.config?x=f9aa2432c01bcb1f dashboard link: https://syzkaller.appspot.com/bug?extid=a4edd73d589b0b7efbeb compiler: gcc (GCC) 10.1.0-syz 20200507 userspace arch: i386 Unfortunately, I don't have any reproducer for this … [View More]issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+a4edd73d589b0b7efbeb(a)syzkaller.appspotmail.com BUG: unable to handle page fault for address: ffff888001000000 #PF: supervisor write access in kernel mode #PF: error_code(0x0003) - permissions violation PGD fc01067 P4D fc01067 PUD fc02067 PMD 80000000010001e1 Oops: 0003 [#1] PREEMPT SMP KASAN CPU: 0 PID: 12457 Comm: syz-executor.5 Not tainted 5.10.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__writeq arch/x86/include/asm/io.h:98 [inline] RIP: 0010:bitfill_aligned drivers/video/fbdev/core/cfbfillrect.c:70 [inline] RIP: 0010:bitfill_aligned+0x11d/0x200 drivers/video/fbdev/core/cfbfillrect.c:35 Code: 41 83 fc 07 76 5f 4c 89 ed e8 bf 28 8a fd 48 89 5d 00 48 89 5d 08 48 89 5d 10 48 89 5d 18 48 89 5d 20 48 89 5d 28 48 8d 45 38 <48> 89 5d 30 48 83 c5 40 48 89 18 41 83 ef 08 bf 07 00 00 00 44 89 RSP: 0018:ffffc900082176d0 EFLAGS: 00010246 RAX: ffff888001000008 RBX: 0000000000000000 RCX: ffffc90013da2000 RDX: 0000000000040000 RSI: ffffffff83e60721 RDI: 0000000000000005 RBP: ffff888000ffffd0 R08: 0000000000001380 R09: 0000000000000040 R10: 0000000000000007 R11: 0000000000000000 R12: 000000000000004e R13: ffff888000ffff10 R14: 0000000000000000 R15: 0000000000000036 FS: 0000000000000000(0000) GS:ffff8880b9e00000(0063) knlGS:00000000f5542b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: ffff888001000000 CR3: 000000001c7d6000 CR4: 00000000001526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: cfb_fillrect+0x40b/0x7b0 drivers/video/fbdev/core/cfbfillrect.c:327 vga16fb_fillrect+0x683/0x1940 drivers/video/fbdev/vga16fb.c:951 bit_clear_margins+0x3f6/0x4b0 drivers/video/fbdev/core/bitblit.c:224 fbcon_clear_margins+0x1f1/0x280 drivers/video/fbdev/core/fbcon.c:1325 fbcon_switch+0xafe/0x16b0 drivers/video/fbdev/core/fbcon.c:2187 redraw_screen+0x2b9/0x790 drivers/tty/vt/vt.c:1021 vc_do_resize+0xed8/0x1150 drivers/tty/vt/vt.c:1326 vt_resize+0xa3/0xe0 drivers/tty/vt/vt.c:1367 tiocswinsz drivers/tty/tty_io.c:2278 [inline] tty_ioctl+0x11a2/0x1600 drivers/tty/tty_io.c:2576 tty_compat_ioctl+0x295/0x410 drivers/tty/tty_io.c:2818 __do_compat_sys_ioctl+0x1d3/0x230 fs/ioctl.c:842 do_syscall_32_irqs_on arch/x86/entry/common.c:78 [inline] __do_fast_syscall_32+0x56/0x80 arch/x86/entry/common.c:137 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:160 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c RIP: 0023:0xf7f48549 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000f55420cc EFLAGS: 00000296 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000005414 RDX: 0000000020000040 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: CR2: ffff888001000000 ---[ end trace 7c559c247d0f5502 ]--- RIP: 0010:__writeq arch/x86/include/asm/io.h:98 [inline] RIP: 0010:bitfill_aligned drivers/video/fbdev/core/cfbfillrect.c:70 [inline] RIP: 0010:bitfill_aligned+0x11d/0x200 drivers/video/fbdev/core/cfbfillrect.c:35 Code: 41 83 fc 07 76 5f 4c 89 ed e8 bf 28 8a fd 48 89 5d 00 48 89 5d 08 48 89 5d 10 48 89 5d 18 48 89 5d 20 48 89 5d 28 48 8d 45 38 <48> 89 5d 30 48 83 c5 40 48 89 18 41 83 ef 08 bf 07 00 00 00 44 89 RSP: 0018:ffffc900082176d0 EFLAGS: 00010246 RAX: ffff888001000008 RBX: 0000000000000000 RCX: ffffc90013da2000 RDX: 0000000000040000 RSI: ffffffff83e60721 RDI: 0000000000000005 RBP: ffff888000ffffd0 R08: 0000000000001380 R09: 0000000000000040 R10: 0000000000000007 R11: 0000000000000000 R12: 000000000000004e R13: ffff888000ffff10 R14: 0000000000000000 R15: 0000000000000036 FS: 0000000000000000(0000) GS:ffff8880b9e00000(0063) knlGS:00000000f5542b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: ffff888001000000 CR3: 000000001c7d6000 CR4: 00000000001526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller(a)googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. [View Less]

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[syzbot] WARNING in drm_gem_shmem_vm_open
by syzbot 12 May '22

12 May '22

Hello, syzbot found the following issue on: HEAD commit: 614cb2751d31 Merge tag 'trace-v5.14-rc6' of git://git.kern.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1462cb61300000 kernel config: https://syzkaller.appspot.com/x/.config?x=96f0602203250753 dashboard link: https://syzkaller.appspot.com/bug?extid=91525b2bd4b5dff71619 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1 syz repro: https://… [View More]syzkaller.appspot.com/x/repro.syz?x=122bce0e300000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+91525b2bd4b5dff71619(a)syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 0 PID: 11697 at drivers/gpu/drm/drm_gem_shmem_helper.c:562 drm_gem_shmem_vm_open+0x96/0xb0 drivers/gpu/drm/drm_gem_shmem_helper.c:562 Modules linked in: CPU: 0 PID: 11697 Comm: syz-executor.3 Not tainted 5.14.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:drm_gem_shmem_vm_open+0x96/0xb0 drivers/gpu/drm/drm_gem_shmem_helper.c:562 Code: 89 c6 e8 7d ec 23 fd 85 db 75 1a e8 34 e5 23 fd 48 89 ef 5b 5d 41 5c e9 e8 61 f5 ff e8 23 e5 23 fd 0f 0b eb ca e8 1a e5 23 fd <0f> 0b eb dd e8 b1 1f 6a fd eb 89 e8 aa 1f 6a fd eb a8 0f 1f 84 00 RSP: 0018:ffffc9000b3cfb90 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 00000000fffffffc RCX: 0000000000000000 RDX: ffff8880364eb880 RSI: ffffffff8451c3e6 RDI: 0000000000000003 RBP: ffff888033c70948 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff8451c3c3 R11: 0000000000000001 R12: ffff888146490800 R13: ffff888033c70a50 R14: 0000000020166000 R15: ffff888033c709d8 FS: 00007fbe43056700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000005422b8 CR3: 0000000036274000 CR4: 0000000000350ef0 Call Trace: __split_vma+0x23c/0x550 mm/mmap.c:2764 __do_munmap+0x32a/0x11c0 mm/mmap.c:2868 do_munmap mm/mmap.c:2922 [inline] munmap_vma_range mm/mmap.c:604 [inline] mmap_region+0x85a/0x1760 mm/mmap.c:1753 do_mmap+0x86e/0x1180 mm/mmap.c:1584 vm_mmap_pgoff+0x1b7/0x290 mm/util.c:519 ksys_mmap_pgoff+0x4a8/0x620 mm/mmap.c:1635 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665e9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fbe43056188 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 0000000000000000 RSI: 0000000000002000 RDI: 0000000020166000 RBP: 00000000004bfcc4 R08: 0000000000000004 R09: 0000000000000000 R10: 0000000000000013 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007fffb615701f R14: 00007fbe43056300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: 89 c6 mov %eax,%esi 2: e8 7d ec 23 fd callq 0xfd23ec84 7: 85 db test %ebx,%ebx 9: 75 1a jne 0x25 b: e8 34 e5 23 fd callq 0xfd23e544 10: 48 89 ef mov %rbp,%rdi 13: 5b pop %rbx 14: 5d pop %rbp 15: 41 5c pop %r12 17: e9 e8 61 f5 ff jmpq 0xfff56204 1c: e8 23 e5 23 fd callq 0xfd23e544 21: 0f 0b ud2 23: eb ca jmp 0xffffffef 25: e8 1a e5 23 fd callq 0xfd23e544 2a: 0f 0b ud2 <-- trapping instruction 2c: eb dd jmp 0xb 2e: e8 b1 1f 6a fd callq 0xfd6a1fe4 33: eb 89 jmp 0xffffffbe 35: e8 aa 1f 6a fd callq 0xfd6a1fe4 3a: eb a8 jmp 0xffffffe4 3c: 0f .byte 0xf 3d: 1f (bad) 3e: 84 00 test %al,(%rax) --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller(a)googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches [View Less]

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[PATCH v3 0/5] drm: Provide framebuffer vmap helpers
by Thomas Zimmermann 09 May '22

09 May '22

Add the new helpers drm_gem_fb_vmap() and drm_gem_fb_vunmap(), which provide vmap/vunmap for all BOs of a framebuffer. Convert shadow- plane helpers, gud and vkms. Callers of GEM vmap and vunmap functions used to do the minimum work or get some detail wrong. Therefore shadow-plane helpers were intro- duced to implement the details for all callers. The vmapping code in the shadow-plane helpers is also useful for gud and vkms. So it makes sense to provide rsp helpers. Simply call drm_gem_fb_vmap(… [View More]

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[Bug 214853] New: [amdgpu] UBSAN shows several null-ptr-deref in ../dc/bios/command_table2.c some array-index-out-of-bounds in ../dc/bios/bios_parser2.c and an invalid-load in ../amdgpu_dm/amdgpu_dm.c
by bugzilla-daemon＠bugzilla.kernel.org 09 May '22

09 May '22

https://bugzilla.kernel.org/show_bug.cgi?id=214853 Bug ID: 214853 Summary: [amdgpu] UBSAN shows several null-ptr-deref in ../dc/bios/command_table2.c some array-index-out-of-bounds in ../dc/bios/bios_parser2.c and an invalid-load in ../amdgpu_dm/amdgpu_dm.c Product: Drivers Version: 2.5 Kernel Version: 5.15-rc7 Hardware: All OS: Linux Tree: … [View More]Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri(a)kernel-bugs.osdl.org Reporter: erhard_f(a)mailbox.org CC: christian.koenig(a)amd.com Regression: No Created attachment 299337 --> https://bugzilla.kernel.org/attachment.cgi?id=299337&action=edit kernel dmesg (kernel 5.15-rc7, AMD FX-8370) [...] UBSAN: null-ptr-deref in drivers/gpu/drm/amd/amdgpu/../display/dc/bios/command_table2.c:872:3 member access within null pointer of type 'struct atom_master_list_of_command_functions_v2_1' CPU: 3 PID: 234 Comm: systemd-udevd Not tainted 5.15.0-rc7-bdver2 #11 Hardware name: Gigabyte Technology Co., Ltd. To be filled by O.E.M./970-GAMING, BIOS F2 04/06/2016 Call Trace: dump_stack_lvl+0x8d/0xd9 ubsan_epilogue+0x5/0x44 __ubsan_handle_type_mismatch_v1+0x45/0x4a dal_firmware_parser_init_cmd_tbl+0x31c/0x37c [amdgpu] bios_parser2_construct+0x16f/0x9cb [amdgpu] firmware_parser_create+0x36/0x4c [amdgpu] dal_bios_parser_create+0xc/0x20 [amdgpu] dc_create+0x25d/0x764 [amdgpu] dm_hw_init+0x28a/0x697 [amdgpu] ? dev_printk_emit+0x4c/0x66 amdgpu_device_init+0x1847/0x1e13 [amdgpu] amdgpu_driver_load_kms+0x47/0x33d [amdgpu] amdgpu_pci_probe+0xeb/0x1a6 [amdgpu] pci_device_probe+0xa1/0x121 really_probe+0xe4/0x331 __driver_probe_device+0x84/0xe1 driver_probe_device+0x1a/0x6d __driver_attach+0xac/0xc3 ? driver_attach+0x15/0x15 bus_for_each_dev+0x8c/0xc0 bus_add_driver+0xf5/0x1f2 driver_register+0x66/0xe7 ? 0xffffffffc0ff2000 do_one_initcall+0x109/0x1f4 ? 0xffffffffc0ff2000 do_init_module+0x5c/0x1f1 load_module+0x193f/0x1ca9 ? kernel_read_file_from_fd+0x5b/0x7e __se_sys_finit_module+0xa7/0xce do_syscall_64+0x79/0xa3 ? lockdep_hardirqs_on_prepare+0xf6/0x1e3 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fa99ef681e9 Code: 00 00 b8 ca 00 00 00 0f 05 eb ac 66 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 4f fc 0b 00 f7 d8 64 89 01 48 RSP: 002b:00007fff06041ba8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 RAX: ffffffffffffffda RBX: 000055f2d378be20 RCX: 00007fa99ef681e9 RDX: 0000000000000000 RSI: 00007fa99f0af97f RDI: 0000000000000018 RBP: 0000000000020000 R08: 0000000000000000 R09: fffffffffffffeb8 R10: 0000000000000018 R11: 0000000000000246 R12: 0000000000000000 R13: 000055f2d38eba60 R14: 00007fa99f0af97f R15: 0000000000000000 ================================================================================ ================================================================================ UBSAN: array-index-out-of-bounds in drivers/gpu/drm/amd/amdgpu/../display/dc/bios/bios_parser2.c:384:3 index 8 is out of range for type 'struct atom_gpio_pin_assignment [8]' CPU: 3 PID: 234 Comm: systemd-udevd Not tainted 5.15.0-rc7-bdver2 #11 Hardware name: Gigabyte Technology Co., Ltd. To be filled by O.E.M./970-GAMING, BIOS F2 04/06/2016 Call Trace: dump_stack_lvl+0x8d/0xd9 ubsan_epilogue+0x5/0x44 __ubsan_handle_out_of_bounds+0x9e/0xa0 get_gpio_i2c_info+0xe0/0x17e [amdgpu] bios_parser_get_i2c_info+0x5b/0xfa [amdgpu] dal_ddc_service_create+0xa7/0x1a8 [amdgpu] dcn20_resource_construct+0x106e/0x10ba [amdgpu] ? find_held_lock+0x41/0xc1 ? slab_post_alloc_hook+0x5f/0x8a dcn20_create_resource_pool+0x39/0x6f [amdgpu] dc_create_resource_pool+0x164/0x213 [amdgpu] ? dal_gpio_service_create+0x8f/0x193 [amdgpu] dc_create+0x2b3/0x764 [amdgpu] dm_hw_init+0x28a/0x697 [amdgpu] ? dev_printk_emit+0x4c/0x66 amdgpu_device_init+0x1847/0x1e13 [amdgpu] amdgpu_driver_load_kms+0x47/0x33d [amdgpu] amdgpu_pci_probe+0xeb/0x1a6 [amdgpu] pci_device_probe+0xa1/0x121 really_probe+0xe4/0x331 __driver_probe_device+0x84/0xe1 driver_probe_device+0x1a/0x6d __driver_attach+0xac/0xc3 ? driver_attach+0x15/0x15 bus_for_each_dev+0x8c/0xc0 bus_add_driver+0xf5/0x1f2 driver_register+0x66/0xe7 ? 0xffffffffc0ff2000 do_one_initcall+0x109/0x1f4 ? 0xffffffffc0ff2000 do_init_module+0x5c/0x1f1 load_module+0x193f/0x1ca9 ? kernel_read_file_from_fd+0x5b/0x7e __se_sys_finit_module+0xa7/0xce do_syscall_64+0x79/0xa3 ? lockdep_hardirqs_on_prepare+0xf6/0x1e3 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fa99ef681e9 Code: 00 00 b8 ca 00 00 00 0f 05 eb ac 66 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 4f fc 0b 00 f7 d8 64 89 01 48 RSP: 002b:00007fff06041ba8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 RAX: ffffffffffffffda RBX: 000055f2d378be20 RCX: 00007fa99ef681e9 RDX: 0000000000000000 RSI: 00007fa99f0af97f RDI: 0000000000000018 RBP: 0000000000020000 R08: 0000000000000000 R09: fffffffffffffeb8 R10: 0000000000000018 R11: 0000000000000246 R12: 0000000000000000 R13: 000055f2d38eba60 R14: 00007fa99f0af97f R15: 0000000000000000 [...] = UBSAN: invalid-load in drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:5865:85 load of value 170 is not a valid value for type 'bool' (aka '_Bool') CPU: 5 PID: 234 Comm: systemd-udevd Not tainted 5.15.0-rc7-bdver2 #11 Hardware name: Gigabyte Technology Co., Ltd. To be filled by O.E.M./970-GAMING, BIOS F2 04/06/2016 Call Trace: dump_stack_lvl+0x8d/0xd9 ubsan_epilogue+0x5/0x44 __ubsan_handle_load_invalid_value+0x9e/0xa0 create_validate_stream_for_sink+0x6bb/0x777 [amdgpu] ? lockdep_hardirqs_on_prepare+0xf6/0x1e3 amdgpu_dm_connector_mode_valid+0x70/0x1b9 [amdgpu] ? drm_connector_list_update+0xba/0x121 [drm] drm_connector_mode_valid+0x34/0x42 [drm_kms_helper] drm_helper_probe_single_connector_modes+0x4d7/0x88e [drm_kms_helper] ? drm_client_modeset_probe+0x1fa/0x14c9 [drm] drm_client_modeset_probe+0x232/0x14c9 [drm] ? add_chain_block+0x165/0x22f ? __lock_acquire+0xc7c/0x1e4d ? rcu_read_lock_sched_held+0x45/0xa5 ? lock_acquire+0xcb/0x210 ? drm_fb_helper_initial_config+0x32/0x4f [drm_kms_helper] __drm_fb_helper_initial_config_and_unlock+0x3e/0x5f0 [drm_kms_helper] amdgpu_fbdev_init+0xee/0x110 [amdgpu] amdgpu_device_init+0x1996/0x1e13 [amdgpu] amdgpu_driver_load_kms+0x47/0x33d [amdgpu] amdgpu_pci_probe+0xeb/0x1a6 [amdgpu] pci_device_probe+0xa1/0x121 really_probe+0xe4/0x331 __driver_probe_device+0x84/0xe1 driver_probe_device+0x1a/0x6d __driver_attach+0xac/0xc3 ? driver_attach+0x15/0x15 bus_for_each_dev+0x8c/0xc0 bus_add_driver+0xf5/0x1f2 driver_register+0x66/0xe7 ? 0xffffffffc0ff2000 do_one_initcall+0x109/0x1f4 ? 0xffffffffc0ff2000 do_init_module+0x5c/0x1f1 load_module+0x193f/0x1ca9 ? kernel_read_file_from_fd+0x5b/0x7e __se_sys_finit_module+0xa7/0xce do_syscall_64+0x79/0xa3 ? lockdep_hardirqs_on_prepare+0xf6/0x1e3 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fa99ef681e9 Code: 00 00 b8 ca 00 00 00 0f 05 eb ac 66 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 4f fc 0b 00 f7 d8 64 89 01 48 RSP: 002b:00007fff06041ba8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 RAX: ffffffffffffffda RBX: 000055f2d378be20 RCX: 00007fa99ef681e9 RDX: 0000000000000000 RSI: 00007fa99f0af97f RDI: 0000000000000018 RBP: 0000000000020000 R08: 0000000000000000 R09: fffffffffffffeb8 R10: 0000000000000018 R11: 0000000000000246 R12: 0000000000000000 R13: 000055f2d38eba60 R14: 00007fa99f0af97f R15: 0000000000000000 -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. [View Less]

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[PATCH] drm/ast: Atomic CR/SR reg R/W
by KuoHsiang Chou 03 May '22

03 May '22

1. Avoid IO-index racing 2. IO-index racing happened on resolustion switching and mouse moving at the same time 3. System hung while IO-index racing occurred. Signed-off-by: KuoHsiang Chou <kuohsiang_chou(a)aspeedtech.com> --- drivers/gpu/drm/ast/ast_main.c | 48 +++++++++++++++++++++++++--------- 1 file changed, 36 insertions(+), 12 deletions(-) diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c index 79a361867..1d8fa70c5 100644 --- a/drivers/gpu/drm/ast/… [View More]

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[Bug 201991] New: amdgpu: clock management is disabled for the 4K resolution with polaris 10
by bugzilla-daemon＠bugzilla.kernel.org 29 Apr '22

29 Apr '22

https://bugzilla.kernel.org/show_bug.cgi?id=201991 Bug ID: 201991 Summary: amdgpu: clock management is disabled for the 4K resolution with polaris 10 Product: Drivers Version: 2.5 Kernel Version: 4.18.0,4.20.0-rc6, drm-next-4.21-wip Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: enhancement Priority: P1 Component: Video(DRI - non … [View More]

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[RFC 00/21] Renesas r8a7795/Salvator-X HDMI output prototype
by Ulrich Hecht 26 Apr '22

26 Apr '22

Hi! This is a prototype of HDMI output support for the Renesas r8a7795 SoC and Salvator-X board. It is based on the renesas-devel-20160516-v4.6 tree and includes the bridge API conversion patches to the adv7511 and rcar-du drivers written by Archit Taneja. The obvious issue with this series is the awkward binding of the dw-hdmi bridge IP, which can be seen in the "drm: rcar-du: Add dw_hdmi driver startup" patch. Any comments on how to implement this interface properly are much appreciated. … [View More]Functionally, this series works as expected on both connectors, but EDID reading is currently broken. CU Uli Archit Taneja (2): drm: rcar-du: Remove i2c slave encoder interface for hdmi encoder drm: i2c: adv7511: Convert to drm_bridge Koji Matsuoka (12): media: vsp1: Set format to RPF input source drm: bridge/dw_hdmi: Fix R-Car Gen3 device support drm: rcar-du: Add R8A7795 device support drm: rcar-du: Add dw_hdmi driver startup drm: rcar-du: Add DPLL support drm: rcar-du: Fix display registers for R-Car Gen3 drm: rcar-du: Fix VSP plane number per devices drm: rcar-du: Fix VSP feed plane number drm: rcar-du: Add pixel format support drm: rcar-du: Fix display max size to 4096x2160 size arm64: dts: salvator-x: Add DU pins, HDMI connectors and encoder arm64: configs: Enable R-Car DU related config Kuninori Morimoto (1): arm64: defconfig: add VIDEO_RENESAS_FCP Ulrich Hecht (5): v4l: vsp1: Change VSP1 LIF linebuffer FIFO pinctrl: sh-pfc: r8a7795: Add DU support pinctrl: sh-pfc: r8a7795: Add HDMI CEC support arm64: dts: r8a7795: Add HDMI encoder support arm64: dts: r8a7795: add HDMI support to DU Vladimir Zapolskiy (1): drm: bridge/dw_hdmi: add dw hdmi i2c bus adapter support arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts | 107 +++++ arch/arm64/boot/dts/renesas/r8a7795.dtsi | 33 +- arch/arm64/configs/defconfig | 15 + drivers/gpu/drm/bridge/dw-hdmi.c | 489 +++++++++++++++++++-- drivers/gpu/drm/i2c/adv7511.c | 224 ++++++---- drivers/gpu/drm/rcar-du/Kconfig | 2 + drivers/gpu/drm/rcar-du/Makefile | 3 +- drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 97 +++- drivers/gpu/drm/rcar-du/rcar_du_crtc.h | 12 +- drivers/gpu/drm/rcar-du/rcar_du_drv.c | 20 +- drivers/gpu/drm/rcar-du/rcar_du_drv.h | 6 +- drivers/gpu/drm/rcar-du/rcar_du_encoder.c | 12 +- drivers/gpu/drm/rcar-du/rcar_du_encoder.h | 13 +- drivers/gpu/drm/rcar-du/rcar_du_group.c | 5 + drivers/gpu/drm/rcar-du/rcar_du_hdmicon.c | 117 ----- drivers/gpu/drm/rcar-du/rcar_du_hdmicon.h | 31 -- drivers/gpu/drm/rcar-du/rcar_du_hdmienc.c | 260 ++++++++--- drivers/gpu/drm/rcar-du/rcar_du_kms.c | 68 ++- drivers/gpu/drm/rcar-du/rcar_du_kms.h | 1 + drivers/gpu/drm/rcar-du/rcar_du_plane.c | 8 +- drivers/gpu/drm/rcar-du/rcar_du_plane.h | 7 +- drivers/gpu/drm/rcar-du/rcar_du_regs.h | 19 + drivers/gpu/drm/rcar-du/rcar_du_vsp.c | 51 ++- drivers/media/platform/vsp1/vsp1_drm.c | 6 + drivers/media/platform/vsp1/vsp1_lif.c | 6 +- drivers/pinctrl/sh-pfc/pfc-r8a7795.c | 113 +++++ include/drm/bridge/dw_hdmi.h | 9 + 27 files changed, 1388 insertions(+), 346 deletions(-) delete mode 100644 drivers/gpu/drm/rcar-du/rcar_du_hdmicon.c delete mode 100644 drivers/gpu/drm/rcar-du/rcar_du_hdmicon.h -- 2.7.4 [View Less]

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dri-devel October 2021