/** AudioScience HPI driver Copyright (C) 1997-2014 AudioScience Inc. This program is free software; you can redistribute it and/or modify it under the terms of version 2 of the GNU General Public License as published by the Free Software Foundation; This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ struct hpi_adapter_obj; /* a function that takes an adapter obj and returns an int */ typedef int adapter_int_func(struct hpi_adapter_obj *pao, u32 message); #define HPI_IRQ_NONE (0) #define HPI_IRQ_MESSAGE (1) #define HPI_IRQ_MIXER (2) struct hpi_adapter_obj { struct hpi_pci pci; /* PCI info - bus#,dev#,address etc */ u16 type; /* 0x6644 == ASI6644 etc */ u16 index; struct hpios_spinlock dsp_lock; u16 dsp_crashed; u16 has_control_cache; void *priv; adapter_int_func *irq_query_and_clear; struct hpi_hostbuffer_status *instream_host_buffer_status; struct hpi_hostbuffer_status *outstream_host_buffer_status; }; struct hpi_control_cache { /** indicates whether the structures are initialized */ u16 init; u16 adap_idx; u32 control_count; u32 cache_size_in_bytes; /** pointer to allocated memory of lookup pointers. */ struct hpi_control_cache_info **p_info; /** pointer to DSP's control cache. */ u8 *p_cache; }; struct hpi_adapter_obj *hpi_find_adapter(u16 adapter_index); u16 hpi_add_adapter(struct hpi_adapter_obj *pao); void hpi_delete_adapter(struct hpi_adapter_obj *pao); short hpi_check_control_cache(struct hpi_control_cache *pC, struct hpi_message *phm, struct hpi_response *phr); short hpi_check_control_cache_single(struct hpi_control_cache_single *pC, struct hpi_message *phm, struct hpi_response *phr); struct hpi_control_cache *hpi_alloc_control_cache(const u32 number_of_controls, const u32 size_in_bytes, u8 *pDSP_control_buffer); void hpi_free_control_cache(struct hpi_control_cache *p_cache); void hpi_cmn_control_cache_sync_to_msg(struct hpi_control_cache *pC, struct hpi_message *phm, struct hpi_response *phr); void hpi_cmn_control_cache_sync_to_msg_single(struct hpi_control_cache_single *pC, struct hpi_message *phm, struct hpi_response *phr); u16 hpi_validate_response(struct hpi_message *phm, struct hpi_response *phr); hpi_handler_func HPI_COMMON; lect>
path: root/sound/pci/rme96.c
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authorThomas Gleixner <tglx@linutronix.de>2017-01-31 09:37:34 +0100
committerThomas Gleixner <tglx@linutronix.de>2017-01-31 21:47:58 +0100
commit0becc0ae5b42828785b589f686725ff5bc3b9b25 (patch)
treebe6d0e1f37c38ed0a7dd5da2d4b1e93f0fb43101 /sound/pci/rme96.c
parent24c2503255d35c269b67162c397a1a1c1e02f6ce (diff)
x86/mce: Make timer handling more robust
Erik reported that on a preproduction hardware a CMCI storm triggers the BUG_ON in add_timer_on(). The reason is that the per CPU MCE timer is started by the CMCI logic before the MCE CPU hotplug callback starts the timer with add_timer_on(). So the timer is already queued which triggers the BUG. Using add_timer_on() is pretty pointless in this code because the timer is strictlty per CPU, initialized as pinned and all operations which arm the timer happen on the CPU to which the timer belongs. Simplify the whole machinery by using mod_timer() instead of add_timer_on() which avoids the problem because mod_timer() can handle already queued timers. Use __start_timer() everywhere so the earliest armed expiry time is preserved. Reported-by: Erik Veijola <erik.veijola@intel.com> Tested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Borislav Petkov <bp@alien8.de> Cc: Tony Luck <tony.luck@intel.com> Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701310936080.3457@nanos Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'sound/pci/rme96.c')