/* * wm8994.h -- WM8994 Soc Audio driver * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #ifndef _WM8994_H #define _WM8994_H #include #include #include #include #include #include "wm_hubs.h" /* Sources for AIF1/2 SYSCLK - use with set_dai_sysclk() */ #define WM8994_SYSCLK_MCLK1 1 #define WM8994_SYSCLK_MCLK2 2 #define WM8994_SYSCLK_FLL1 3 #define WM8994_SYSCLK_FLL2 4 /* OPCLK is also configured with set_dai_sysclk, specify division*10 as rate. */ #define WM8994_SYSCLK_OPCLK 5 #define WM8994_FLL1 1 #define WM8994_FLL2 2 #define WM8994_FLL_SRC_MCLK1 1 #define WM8994_FLL_SRC_MCLK2 2 #define WM8994_FLL_SRC_LRCLK 3 #define WM8994_FLL_SRC_BCLK 4 #define WM8994_FLL_SRC_INTERNAL 5 enum wm8994_vmid_mode { WM8994_VMID_NORMAL, WM8994_VMID_FORCE, }; typedef void (*wm1811_micdet_cb)(void *data); typedef void (*wm1811_mic_id_cb)(void *data, u16 status); int wm8994_mic_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack, int micbias); int wm8958_mic_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack, wm1811_micdet_cb cb, void *det_cb_data, wm1811_mic_id_cb id_cb, void *id_cb_data); int wm8994_vmid_mode(struct snd_soc_codec *codec, enum wm8994_vmid_mode mode); int wm8958_aif_ev(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event); void wm8958_dsp2_init(struct snd_soc_codec *codec); struct wm8994_micdet { struct snd_soc_jack *jack; bool detecting; }; /* codec private data */ struct wm8994_fll_config { int src; int in; int out; }; #define WM8994_NUM_DRC 3 #define WM8994_NUM_EQ 3 struct wm8994; struct wm8994_priv { struct wm_hubs_data hubs; struct wm8994 *wm8994; int sysclk[2]; int sysclk_rate[2]; int mclk[2]; int aifclk[2]; int aifdiv[2]; int channels[2]; struct wm8994_fll_config fll[2], fll_suspend[2]; struct completion fll_locked[2]; bool fll_locked_irq; bool fll_byp; bool clk_has_run; int vmid_refcount; int active_refcount; enum wm8994_vmid_mode vmid_mode; int dac_rates[2]; int lrclk_shared[2]; int mbc_ena[3]; int hpf1_ena[3]; int hpf2_ena[3]; int vss_ena[3]; int enh_eq_ena[3]; /* Platform dependant DRC configuration */ const char **drc_texts; int drc_cfg[WM8994_NUM_DRC]; struct soc_enum drc_enum; /* Platform dependant ReTune mobile configuration */ int num_retune_mobile_texts; const char **retune_mobile_texts; int retune_mobile_cfg[WM8994_NUM_EQ]; struct soc_enum retune_mobile_enum; /* Platform dependant MBC configuration */ int mbc_cfg; const char **mbc_texts; struct soc_enum mbc_enum; /* Platform dependant VSS configuration */ int vss_cfg; const char **vss_texts; struct soc_enum vss_enum; /* Platform dependant VSS HPF configuration */ int vss_hpf_cfg; const char **vss_hpf_texts; struct soc_enum vss_hpf_enum; /* Platform dependant enhanced EQ configuration */ int enh_eq_cfg; const char **enh_eq_texts; struct soc_enum enh_eq_enum; struct mutex accdet_lock; struct wm8994_micdet micdet[2]; struct delayed_work mic_work; struct delayed_work open_circuit_work; struct delayed_work mic_complete_work; u16 mic_status; bool mic_detecting; bool jack_mic; int btn_mask; bool jackdet; int jackdet_mode; struct delayed_work jackdet_bootstrap; int micdet_irq; wm1811_micdet_cb micd_cb; void *micd_cb_data; wm1811_mic_id_cb mic_id_cb; void *mic_id_cb_data; unsigned int aif1clk_enable:1; unsigned int aif2clk_enable:1; unsigned int aif1clk_disable:1; unsigned int aif2clk_disable:1; struct mutex fw_lock; int dsp_active; const struct firmware *cur_fw; const struct firmware *mbc; const struct firmware *mbc_vss; const struct firmware *enh_eq; }; #endif space:mode:
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 /fs/xfs/libxfs/xfs_rmap.c
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 'fs/xfs/libxfs/xfs_rmap.c')