Searched hist:"1 b50247a8ddde4af5aaa0e6bc125615372ce6c16" (Results 1 – 5 of 5) sorted by relevance
/openbmc/linux/drivers/gpu/drm/i915/ |
H A D | i915_gem_evict.c | diff 1b50247a8ddde4af5aaa0e6bc125615372ce6c16 Tue Apr 24 09:47:30 CDT 2012 Chris Wilson <chris@chris-wilson.co.uk> drm/i915: Remove the list of pinned inactive objects
Simplify object tracking by removing the inactive but pinned list. The only place where this was used is for counting the available memory, which is just as easy performed by checking all objects on the rare occasions it is required (application startup). For ease of debugging, we keep the reporting of pinned objects through the error-state and debugfs.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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H A D | i915_gem.c | diff c77d7162a7ae451c2e895d7ef7fbeb0906107472 Sat Oct 06 03:20:16 CDT 2012 Willy Tarreau <w@1wt.eu> drm/i915: remove useless BUG_ON which caused a regression in 3.5.
starting an old X server causes a kernel BUG since commit 1b50247a8d:
------------[ cut here ]------------ kernel BUG at drivers/gpu/drm/i915/i915_gem.c:3661! invalid opcode: 0000 [#1] SMP Modules linked in: snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss uvcvideo +videobuf2_core videodev videobuf2_vmalloc videobuf2_memops uhci_hcd ath9k mac80211 snd_hda_codec_realtek ath9k_common microcode +ath9k_hw psmouse serio_raw sg ath cfg80211 atl1c lpc_ich mfd_core ehci_hcd snd_hda_intel snd_hda_codec snd_hwdep snd_pcm rtc_cmos +snd_timer snd evdev eeepc_laptop snd_page_alloc sparse_keymap
Pid: 2866, comm: X Not tainted 3.5.6-rc1-eeepc #1 ASUSTeK Computer INC. 1005HA/1005HA EIP: 0060:[<c12dc291>] EFLAGS: 00013297 CPU: 0 EIP is at i915_gem_entervt_ioctl+0xf1/0x110 EAX: f5941df4 EBX: f5940000 ECX: 00000000 EDX: 00020000 ESI: f5835400 EDI: 00000000 EBP: f51d7e38 ESP: f51d7e20 DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 CR0: 8005003b CR2: b760e0a0 CR3: 351b6000 CR4: 000007d0 DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 DR6: ffff0ff0 DR7: 00000400 Process X (pid: 2866, ti=f51d6000 task=f61af8d0 task.ti=f51d6000) Stack: 00000001 00000000 f5835414 f51d7e84 f5835400 f54f85c0 f51d7f10 c12b530b 00000001 c151b139 c14751b6 c152e030 00000b32 00006459 00000059 0000e200 00000001 00000000 00006459 c159ddd0 c12dc1a0 ffffffea 00000000 00000000 Call Trace: [<c12b530b>] drm_ioctl+0x2eb/0x440 [<c12dc1a0>] ? i915_gem_init+0xe0/0xe0 [<c1052b2b>] ? enqueue_hrtimer+0x1b/0x50 [<c1053321>] ? __hrtimer_start_range_ns+0x161/0x330 [<c10530b3>] ? lock_hrtimer_base+0x23/0x50 [<c1053163>] ? hrtimer_try_to_cancel+0x33/0x70 [<c12b5020>] ? drm_version+0x90/0x90 [<c10ca171>] vfs_ioctl+0x31/0x50 [<c10ca2e4>] do_vfs_ioctl+0x64/0x510 [<c10535de>] ? hrtimer_nanosleep+0x8e/0x100 [<c1052c20>] ? update_rmtp+0x80/0x80 [<c10ca7c9>] sys_ioctl+0x39/0x60 [<c1433949>] syscall_call+0x7/0xb Code: 83 c4 0c 5b 5e 5f 5d c3 c7 44 24 04 2c 05 53 c1 c7 04 24 6f ef 47 c1 e8 6e e0 fd ff c7 83 38 1e 00 00 00 00 00 00 e9 3f ff ff +ff <0f> 0b eb fe 0f 0b eb fe 8d b4 26 00 00 00 00 0f 0b eb fe 8d b6 EIP: [<c12dc291>] i915_gem_entervt_ioctl+0xf1/0x110 SS:ESP 0068:f51d7e20 ---[ end trace dd332ec083cbd513 ]---
The crash happens here in i915_gem_entervt_ioctl() :
3659 BUG_ON(!list_empty(&dev_priv->mm.active_list)); 3660 BUG_ON(!list_empty(&dev_priv->mm.flushing_list)); -> 3661 BUG_ON(!list_empty(&dev_priv->mm.inactive_list)); 3662 mutex_unlock(&dev->struct_mutex);
Quoting Chris : "That BUG_ON there is silly and can simply be removed. The check is to verify that no batches were submitted to the kernel whilst the UMS/GEM client was suspended - to which the BUG_ONs are a crude approximation. Furthermore, the checks are too late, since it means we attempted to program the hardware whilst it was in an invalid state, the BUG_ONs are the least of your concerns at that point."
Note that this regression has been introduced in
commit 1b50247a8ddde4af5aaa0e6bc125615372ce6c16 Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Tue Apr 24 15:47:30 2012 +0100
drm/i915: Remove the list of pinned inactive objects
Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Willy Tarreau <w@1wt.eu> [danvet: Added note about the regressing commit and cc: stable.] Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> diff 31d8d651eb646498413abe5f17acc7fa2b68b2fc Thu May 24 13:11:20 CDT 2012 Chris Wilson <chris@chris-wilson.co.uk> drm/i915: Remove the error message for unbinding pinned buffers
This is now used intentionally to prevent proliferation of is-pinned checks upon the inactive list following:
commit 1b50247a8ddde4af5aaa0e6bc125615372ce6c16 Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Tue Apr 24 15:47:30 2012 +0100
drm/i915: Remove the list of pinned inactive objects
Reported-and-tested-by: guang.a.yang@intel.com Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=50075 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> diff 1b50247a8ddde4af5aaa0e6bc125615372ce6c16 Tue Apr 24 09:47:30 CDT 2012 Chris Wilson <chris@chris-wilson.co.uk> drm/i915: Remove the list of pinned inactive objects
Simplify object tracking by removing the inactive but pinned list. The only place where this was used is for counting the available memory, which is just as easy performed by checking all objects on the rare occasions it is required (application startup). For ease of debugging, we keep the reporting of pinned objects through the error-state and debugfs.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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H A D | i915_debugfs.c | diff 1b50247a8ddde4af5aaa0e6bc125615372ce6c16 Tue Apr 24 09:47:30 CDT 2012 Chris Wilson <chris@chris-wilson.co.uk> drm/i915: Remove the list of pinned inactive objects
Simplify object tracking by removing the inactive but pinned list. The only place where this was used is for counting the available memory, which is just as easy performed by checking all objects on the rare occasions it is required (application startup). For ease of debugging, we keep the reporting of pinned objects through the error-state and debugfs.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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H A D | i915_irq.c | diff 1b50247a8ddde4af5aaa0e6bc125615372ce6c16 Tue Apr 24 09:47:30 CDT 2012 Chris Wilson <chris@chris-wilson.co.uk> drm/i915: Remove the list of pinned inactive objects
Simplify object tracking by removing the inactive but pinned list. The only place where this was used is for counting the available memory, which is just as easy performed by checking all objects on the rare occasions it is required (application startup). For ease of debugging, we keep the reporting of pinned objects through the error-state and debugfs.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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H A D | i915_drv.h | diff 1b50247a8ddde4af5aaa0e6bc125615372ce6c16 Tue Apr 24 09:47:30 CDT 2012 Chris Wilson <chris@chris-wilson.co.uk> drm/i915: Remove the list of pinned inactive objects
Simplify object tracking by removing the inactive but pinned list. The only place where this was used is for counting the available memory, which is just as easy performed by checking all objects on the rare occasions it is required (application startup). For ease of debugging, we keep the reporting of pinned objects through the error-state and debugfs.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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