/* * Audio support for PS3 * Copyright (C) 2007 Sony Computer Entertainment Inc. * All rights reserved. * Copyright 2006, 2007 Sony Corporation * * 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; version 2 of the Licence. * * 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 */ #if !defined(_SND_PS3_H_) #define _SND_PS3_H_ #include #define SND_PS3_DRIVER_NAME "snd_ps3" enum snd_ps3_out_channel { SND_PS3_OUT_SPDIF_0, SND_PS3_OUT_SPDIF_1, SND_PS3_OUT_SERIAL_0, SND_PS3_OUT_DEVS }; enum snd_ps3_dma_filltype { SND_PS3_DMA_FILLTYPE_FIRSTFILL, SND_PS3_DMA_FILLTYPE_RUNNING, SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL, SND_PS3_DMA_FILLTYPE_SILENT_RUNNING }; enum snd_ps3_ch { SND_PS3_CH_L = 0, SND_PS3_CH_R = 1, SND_PS3_CH_MAX = 2 }; struct snd_ps3_avsetting_info { uint32_t avs_audio_ch; /* fixed */ uint32_t avs_audio_rate; uint32_t avs_audio_width; uint32_t avs_audio_format; /* fixed */ uint32_t avs_audio_source; /* fixed */ unsigned char avs_cs_info[8]; }; /* * PS3 audio 'card' instance * there should be only ONE hardware. */ struct snd_ps3_card_info { struct ps3_system_bus_device *ps3_dev; struct snd_card *card; struct snd_pcm *pcm; struct snd_pcm_substream *substream; /* hvc info */ u64 audio_lpar_addr; u64 audio_lpar_size; /* registers */ void __iomem *mapped_mmio_vaddr; /* irq */ u64 audio_irq_outlet; unsigned int irq_no; /* remember avsetting */ struct snd_ps3_avsetting_info avs; /* dma buffer management */ spinlock_t dma_lock; /* dma_lock start */ void * dma_start_vaddr[2]; /* 0 for L, 1 for R */ dma_addr_t dma_start_bus_addr[2]; size_t dma_buffer_size; void * dma_last_transfer_vaddr[2]; void * dma_next_transfer_vaddr[2]; int silent; /* dma_lock end */ int running; /* null buffer */ void *null_buffer_start_vaddr; dma_addr_t null_buffer_start_dma_addr; /* start delay */ unsigned int start_delay; }; /* PS3 audio DMAC block size in bytes */ #define PS3_AUDIO_DMAC_BLOCK_SIZE (128) /* one stage (stereo) of audio FIFO in bytes */ #define PS3_AUDIO_FIFO_STAGE_SIZE (256) /* how many stages the fifo have */ #define PS3_AUDIO_FIFO_STAGE_COUNT (8) /* fifo size 128 bytes * 8 stages * stereo (2ch) */ #define PS3_AUDIO_FIFO_SIZE \ (PS3_AUDIO_FIFO_STAGE_SIZE * PS3_AUDIO_FIFO_STAGE_COUNT) /* PS3 audio DMAC max block count in one dma shot = 128 (0x80) blocks*/ #define PS3_AUDIO_DMAC_MAX_BLOCKS (PS3_AUDIO_DMASIZE_BLOCKS_MASK + 1) #define PS3_AUDIO_NORMAL_DMA_START_CH (0) #define PS3_AUDIO_NORMAL_DMA_COUNT (8) #define PS3_AUDIO_NULL_DMA_START_CH \ (PS3_AUDIO_NORMAL_DMA_START_CH + PS3_AUDIO_NORMAL_DMA_COUNT) #define PS3_AUDIO_NULL_DMA_COUNT (2) #define SND_PS3_MAX_VOL (0x0F) #define SND_PS3_MIN_VOL (0x00) #define SND_PS3_MIN_ATT SND_PS3_MIN_VOL #define SND_PS3_MAX_ATT SND_PS3_MAX_VOL #define SND_PS3_PCM_PREALLOC_SIZE \ (PS3_AUDIO_DMAC_BLOCK_SIZE * PS3_AUDIO_DMAC_MAX_BLOCKS * 4) #define SND_PS3_DMA_REGION_SIZE \ (SND_PS3_PCM_PREALLOC_SIZE + PAGE_SIZE) #define PS3_AUDIO_IOID (1UL) #endif /* _SND_PS3_H_ */ 'context' onchange='this.form.submit();'>space:mode:
authorBjorn Helgaas <bhelgaas@google.com>2017-01-27 15:00:45 -0600
committerBjorn Helgaas <bhelgaas@google.com>2017-01-27 15:00:45 -0600
commit030305d69fc6963c16003f50d7e8d74b02d0a143 (patch)
tree363a4e34d199178769b7e7eeb26ea2620a55847b /include/trace/events/signal.h
parent4d191b1b63c209e37bf27938ef365244d3c41084 (diff)
PCI/ASPM: Handle PCI-to-PCIe bridges as roots of PCIe hierarchies
In a struct pcie_link_state, link->root points to the pcie_link_state of the root of the PCIe hierarchy. For the topmost link, this points to itself (link->root = link). For others, we copy the pointer from the parent (link->root = link->parent->root). Previously we recognized that Root Ports originated PCIe hierarchies, but we treated PCI/PCI-X to PCIe Bridges as being in the middle of the hierarchy, and when we tried to copy the pointer from link->parent->root, there was no parent, and we dereferenced a NULL pointer: BUG: unable to handle kernel NULL pointer dereference at 0000000000000090 IP: [<ffffffff9e424350>] pcie_aspm_init_link_state+0x170/0x820 Recognize that PCI/PCI-X to PCIe Bridges originate PCIe hierarchies just like Root Ports do, so link->root for these devices should also point to itself. Fixes: 51ebfc92b72b ("PCI: Enumerate switches below PCI-to-PCIe bridges") Link: https://bugzilla.kernel.org/show_bug.cgi?id=193411 Link: https://bugzilla.opensuse.org/show_bug.cgi?id=1022181 Tested-by: lists@ssl-mail.com Tested-by: Jayachandran C. <jnair@caviumnetworks.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: stable@vger.kernel.org # v4.2+
Diffstat (limited to 'include/trace/events/signal.h')