/* * Copyright (C) 2016 Cogent Embedded, Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. */ #ifndef __DT_BINDINGS_CLOCK_R8A7792_H__ #define __DT_BINDINGS_CLOCK_R8A7792_H__ /* CPG */ #define R8A7792_CLK_MAIN 0 #define R8A7792_CLK_PLL0 1 #define R8A7792_CLK_PLL1 2 #define R8A7792_CLK_PLL3 3 #define R8A7792_CLK_LB 4 #define R8A7792_CLK_QSPI 5 #define R8A7792_CLK_Z 6 /* MSTP0 */ #define R8A7792_CLK_MSIOF0 0 /* MSTP1 */ #define R8A7792_CLK_JPU 6 #define R8A7792_CLK_TMU1 11 #define R8A7792_CLK_TMU3 21 #define R8A7792_CLK_TMU2 22 #define R8A7792_CLK_CMT0 24 #define R8A7792_CLK_TMU0 25 #define R8A7792_CLK_VSP1DU1 27 #define R8A7792_CLK_VSP1DU0 28 #define R8A7792_CLK_VSP1_SY 31 /* MSTP2 */ #define R8A7792_CLK_MSIOF1 8 #define R8A7792_CLK_SYS_DMAC1 18 #define R8A7792_CLK_SYS_DMAC0 19 /* MSTP3 */ #define R8A7792_CLK_TPU0 4 #define R8A7792_CLK_SDHI0 14 #define R8A7792_CLK_CMT1 29 /* MSTP4 */ #define R8A7792_CLK_IRQC 7 /* MSTP5 */ #define R8A7792_CLK_AUDIO_DMAC0 2 #define R8A7792_CLK_THERMAL 22 #define R8A7792_CLK_PWM 23 /* MSTP7 */ #define R8A7792_CLK_HSCIF1 16 #define R8A7792_CLK_HSCIF0 17 #define R8A7792_CLK_SCIF3 18 #define R8A7792_CLK_SCIF2 19 #define R8A7792_CLK_SCIF1 20 #define R8A7792_CLK_SCIF0 21 #define R8A7792_CLK_DU1 23 #define R8A7792_CLK_DU0 24 /* MSTP8 */ #define R8A7792_CLK_VIN5 4 #define R8A7792_CLK_VIN4 5 #define R8A7792_CLK_VIN3 8 #define R8A7792_CLK_VIN2 9 #define R8A7792_CLK_VIN1 10 #define R8A7792_CLK_VIN0 11 #define R8A7792_CLK_ETHERAVB 12 /* MSTP9 */ #define R8A7792_CLK_GPIO7 4 #define R8A7792_CLK_GPIO6 5 #define R8A7792_CLK_GPIO5 7 #define R8A7792_CLK_GPIO4 8 #define R8A7792_CLK_GPIO3 9 #define R8A7792_CLK_GPIO2 10 #define R8A7792_CLK_GPIO1 11 #define R8A7792_CLK_GPIO0 12 #define R8A7792_CLK_GPIO11 13 #define R8A7792_CLK_GPIO10 14 #define R8A7792_CLK_CAN1 15 #define R8A7792_CLK_CAN0 16 #define R8A7792_CLK_QSPI_MOD 17 #define R8A7792_CLK_GPIO9 19 #define R8A7792_CLK_GPIO8 21 #define R8A7792_CLK_I2C5 25 #define R8A7792_CLK_IICDVFS 26 #define R8A7792_CLK_I2C4 27 #define R8A7792_CLK_I2C3 28 #define R8A7792_CLK_I2C2 29 #define R8A7792_CLK_I2C1 30 #define R8A7792_CLK_I2C0 31 /* MSTP10 */ #define R8A7792_CLK_SSI_ALL 5 #define R8A7792_CLK_SSI4 11 #define R8A7792_CLK_SSI3 12 #endif /* __DT_BINDINGS_CLOCK_R8A7792_H__ */ >
path: root/sound/soc/tegra/tegra20_das.h
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authorLinus Torvalds <torvalds@linux-foundation.org>2017-01-29 13:50:06 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-29 13:50:06 -0800
commit39cb2c9a316e77f6dfba96c543e55b6672d5a37e (patch)
tree98fe974ee4e20121253de7f61fc8d01bdb3821c1 /sound/soc/tegra/tegra20_das.h
parent2c5d9555d6d937966d79d4c6529a5f7b9206e405 (diff)
drm/i915: Check for NULL i915_vma in intel_unpin_fb_obj()
I've seen this trigger twice now, where the i915_gem_object_to_ggtt() call in intel_unpin_fb_obj() returns NULL, resulting in an oops immediately afterwards as the (inlined) call to i915_vma_unpin_fence() tries to dereference it. It seems to be some race condition where the object is going away at shutdown time, since both times happened when shutting down the X server. The call chains were different: - VT ioctl(KDSETMODE, KD_TEXT): intel_cleanup_plane_fb+0x5b/0xa0 [i915] drm_atomic_helper_cleanup_planes+0x6f/0x90 [drm_kms_helper] intel_atomic_commit_tail+0x749/0xfe0 [i915] intel_atomic_commit+0x3cb/0x4f0 [i915] drm_atomic_commit+0x4b/0x50 [drm] restore_fbdev_mode+0x14c/0x2a0 [drm_kms_helper] drm_fb_helper_restore_fbdev_mode_unlocked+0x34/0x80 [drm_kms_helper] drm_fb_helper_set_par+0x2d/0x60 [drm_kms_helper] intel_fbdev_set_par+0x18/0x70 [i915] fb_set_var+0x236/0x460 fbcon_blank+0x30f/0x350 do_unblank_screen+0xd2/0x1a0 vt_ioctl+0x507/0x12a0 tty_ioctl+0x355/0xc30 do_vfs_ioctl+0xa3/0x5e0 SyS_ioctl+0x79/0x90 entry_SYSCALL_64_fastpath+0x13/0x94 - i915 unpin_work workqueue: intel_unpin_work_fn+0x58/0x140 [i915] process_one_work+0x1f1/0x480 worker_thread+0x48/0x4d0 kthread+0x101/0x140 and this patch purely papers over the issue by adding a NULL pointer check and a WARN_ON_ONCE() to avoid the oops that would then generally make the machine unresponsive. Other callers of i915_gem_object_to_ggtt() seem to also check for the returned pointer being NULL and warn about it, so this clearly has happened before in other places. [ Reported it originally to the i915 developers on Jan 8, applying the ugly workaround on my own now after triggering the problem for the second time with no feedback. This is likely to be the same bug reported as https://bugs.freedesktop.org/show_bug.cgi?id=98829 https://bugs.freedesktop.org/show_bug.cgi?id=99134 which has a patch for the underlying problem, but it hasn't gotten to me, so I'm applying the workaround. ] Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Imre Deak <imre.deak@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'sound/soc/tegra/tegra20_das.h')