Revert "i915: use io_mapping_map_user"
This reverts commit
b739f125e4ebd73d10ed30a856574e13649119ed.
We are unfortunately seeing more issues like we did in
293837b9ac8d
("Revert "i915: fix remap_io_sg to verify the pgprot""), except this is
now for the vm_fault_gtt path, where we are now hitting the same
BUG_ON(!pte_none(*pte)):
[10887.466150] kernel BUG at mm/memory.c:2183!
[10887.466162] invalid opcode: 0000 [#1] PREEMPT SMP PTI
[10887.466168] CPU: 0 PID: 7775 Comm: ffmpeg Tainted: G U 5.13.0-rc3-CI-Nightly #1
[10887.466174] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./J4205-ITX, BIOS P1.40 07/14/2017
[10887.466177] RIP: 0010:remap_pfn_range_notrack+0x30f/0x440
[10887.466188] Code: e8 96 d7 e0 ff 84 c0 0f 84 27 01 00 00 48 ba 00 f0 ff ff ff ff 0f 00 4c 89 e0 48 c1 e0 0c 4d 85 ed 75 96 48 21 d0 31 f6 eb a9 <0f> 0b 48 39 37 0f 85 0e 01 00 00 48 8b 0c 24 48 39 4f 08 0f 85 00
[10887.466193] RSP: 0018:
ffffc90006e33c50 EFLAGS:
00010286
[10887.466198] RAX:
800000000000002f RBX:
00007f5e01800000 RCX:
0000000000000028
[10887.466201] RDX:
0000000000000001 RSI:
ffffea0000000000 RDI:
0000000000000000
[10887.466204] RBP:
ffffea000033fea8 R08:
800000000000002f R09:
ffff8881072256e0
[10887.466207] R10:
ffffc9000b84fff8 R11:
0000000017dab000 R12:
0000000000089f9f
[10887.466210] R13:
800000000000002f R14:
00007f5e017e4000 R15:
ffff88800cffaf20
[10887.466213] FS:
00007f5e04849640(0000) GS:
ffff888278000000(0000) knlGS:
0000000000000000
[10887.466216] CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
[10887.466220] CR2:
00007fd9b191a2ac CR3:
00000001829ac000 CR4:
00000000003506f0
[10887.466223] Call Trace:
[10887.466233] vm_fault_gtt+0x1ca/0x5d0 [i915]
[10887.466381] ? ktime_get+0x38/0x90
[10887.466389] __do_fault+0x37/0x90
[10887.466395] __handle_mm_fault+0xc46/0x1200
[10887.466402] handle_mm_fault+0xce/0x2a0
[10887.466407] do_user_addr_fault+0x1c5/0x660
Reverting this commit is reported to fix the issue.
Reported-by: Eero Tamminen <eero.t.tamminen@intel.com>
References: https://gitlab.freedesktop.org/drm/intel/-/issues/3519
Fixes: b739f125e4eb ("i915: use io_mapping_map_user")
Cc: Christoph Hellwig <hch@lst.de>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210527185145.458021-1-matthew.auld@intel.com
(cherry picked from commit
0e4fe0c9f2f981f26e01b73f3c465ca314c4f9c0)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>