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11/17/2022 06:42:18 AM
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ac97
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11/17/2022 06:42:23 AM
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ac97_codec.h
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aci.h
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ad1816a.h
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ak4117.h
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ak4531_codec.h
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ak4641.h
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alc5623.h
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asequencer.h
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asound.h
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asoundef.h
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compress_driver.h
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control.h
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core.h
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cs42l73.h
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cs8403.h
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cs8427.h
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da7219-aad.h
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da9055.h
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designware_i2s.h
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dmaengine_pcm.h
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emu10k1.h
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emu10k1_synth.h
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emu8000.h
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emu8000_reg.h
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emux_legacy.h
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emux_synth.h
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es1688.h
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gus.h
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hda_chmap.h
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hda_hwdep.h
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hda_i915.h
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hda_register.h
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hda_regmap.h
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hda_verbs.h
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hdaudio.h
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hdaudio_ext.h
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hdmi-codec.h
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hwdep.h
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i2c.h
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info.h
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initval.h
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jack.h
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l3.h
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max9768.h
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max98088.h
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max98090.h
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max98095.h
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memalloc.h
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minors.h
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mixer_oss.h
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mpu401.h
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omap-hdmi-audio.h
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omap-pcm.h
864 bytes
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opl3.h
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opl4.h
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pcm-indirect.h
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pcm.h
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pcm_drm_eld.h
183 bytes
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pcm_iec958.h
332 bytes
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pcm_oss.h
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pcm_params.h
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pt2258.h
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pxa2xx-lib.h
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rawmidi.h
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rt286.h
460 bytes
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rt298.h
519 bytes
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rt5514.h
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rt5640.h
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rt5645.h
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rt5651.h
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rt5659.h
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rt5660.h
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rt5663.h
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rt5665.h
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rt5670.h
679 bytes
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s3c24xx_uda134x.h
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sb.h
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sb16_csp.h
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seq_device.h
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seq_kernel.h
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seq_midi_emul.h
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seq_midi_event.h
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seq_oss.h
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seq_oss_legacy.h
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seq_virmidi.h
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sh_dac_audio.h
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sh_fsi.h
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simple_card.h
683 bytes
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simple_card_utils.h
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snd_wavefront.h
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soc-acpi-intel-match.h
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soc-acpi.h
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soc-dai.h
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soc-dapm.h
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soc-dpcm.h
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soc-topology.h
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soc.h
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soundfont.h
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spear_dma.h
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spear_spdif.h
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sta32x.h
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sta350.h
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tas2552-plat.h
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tas5086.h
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tea6330t.h
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timer.h
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tlv.h
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tlv320aic32x4.h
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tlv320aic3x.h
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tlv320dac33-plat.h
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tpa6130a2-plat.h
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uda134x.h
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uda1380.h
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util_mem.h
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vx_core.h
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wavefront.h
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wm0010.h
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wm1250-ev1.h
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wm2000.h
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wm2200.h
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wm5100.h
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wm8903.h
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wm8904.h
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wm9081.h
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wm9090.h
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wss.h
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Editing: memalloc.h
Close
/* * Copyright (c) by Jaroslav Kysela <perex@perex.cz> * Takashi Iwai <tiwai@suse.de> * * Generic memory allocators * * * 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. * * 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 * */ #ifndef __SOUND_MEMALLOC_H #define __SOUND_MEMALLOC_H struct device; /* * buffer device info */ struct snd_dma_device { int type; /* SNDRV_DMA_TYPE_XXX */ struct device *dev; /* generic device */ }; #ifndef snd_dma_pci_data #define snd_dma_pci_data(pci) (&(pci)->dev) #define snd_dma_isa_data() NULL #define snd_dma_continuous_data(x) ((struct device *)(__force unsigned long)(x)) #endif /* * buffer types */ #define SNDRV_DMA_TYPE_UNKNOWN 0 /* not defined */ #define SNDRV_DMA_TYPE_CONTINUOUS 1 /* continuous no-DMA memory */ #define SNDRV_DMA_TYPE_DEV 2 /* generic device continuous */ #ifdef CONFIG_SND_DMA_SGBUF #define SNDRV_DMA_TYPE_DEV_SG 3 /* generic device SG-buffer */ #else #define SNDRV_DMA_TYPE_DEV_SG SNDRV_DMA_TYPE_DEV /* no SG-buf support */ #endif #ifdef CONFIG_GENERIC_ALLOCATOR #define SNDRV_DMA_TYPE_DEV_IRAM 4 /* generic device iram-buffer */ #else #define SNDRV_DMA_TYPE_DEV_IRAM SNDRV_DMA_TYPE_DEV #endif /* * info for buffer allocation */ struct snd_dma_buffer { struct snd_dma_device dev; /* device type */ unsigned char *area; /* virtual pointer */ dma_addr_t addr; /* physical address */ size_t bytes; /* buffer size in bytes */ void *private_data; /* private for allocator; don't touch */ }; #ifdef CONFIG_SND_DMA_SGBUF /* * Scatter-Gather generic device pages */ void *snd_malloc_sgbuf_pages(struct device *device, size_t size, struct snd_dma_buffer *dmab, size_t *res_size); int snd_free_sgbuf_pages(struct snd_dma_buffer *dmab); struct snd_sg_page { void *buf; dma_addr_t addr; }; struct snd_sg_buf { int size; /* allocated byte size */ int pages; /* allocated pages */ int tblsize; /* allocated table size */ struct snd_sg_page *table; /* address table */ struct page **page_table; /* page table (for vmap/vunmap) */ struct device *dev; }; /* * return the pages matching with the given byte size */ static inline unsigned int snd_sgbuf_aligned_pages(size_t size) { return (size + PAGE_SIZE - 1) >> PAGE_SHIFT; } /* * return the physical address at the corresponding offset */ static inline dma_addr_t snd_sgbuf_get_addr(struct snd_dma_buffer *dmab, size_t offset) { struct snd_sg_buf *sgbuf = dmab->private_data; dma_addr_t addr = sgbuf->table[offset >> PAGE_SHIFT].addr; addr &= ~((dma_addr_t)PAGE_SIZE - 1); return addr + offset % PAGE_SIZE; } /* * return the virtual address at the corresponding offset */ static inline void *snd_sgbuf_get_ptr(struct snd_dma_buffer *dmab, size_t offset) { struct snd_sg_buf *sgbuf = dmab->private_data; return sgbuf->table[offset >> PAGE_SHIFT].buf + offset % PAGE_SIZE; } unsigned int snd_sgbuf_get_chunk_size(struct snd_dma_buffer *dmab, unsigned int ofs, unsigned int size); #else /* non-SG versions */ static inline dma_addr_t snd_sgbuf_get_addr(struct snd_dma_buffer *dmab, size_t offset) { return dmab->addr + offset; } static inline void *snd_sgbuf_get_ptr(struct snd_dma_buffer *dmab, size_t offset) { return dmab->area + offset; } #define snd_sgbuf_get_chunk_size(dmab, ofs, size) (size) #endif /* CONFIG_SND_DMA_SGBUF */ /* allocate/release a buffer */ int snd_dma_alloc_pages(int type, struct device *dev, size_t size, struct snd_dma_buffer *dmab); int snd_dma_alloc_pages_fallback(int type, struct device *dev, size_t size, struct snd_dma_buffer *dmab); void snd_dma_free_pages(struct snd_dma_buffer *dmab); /* basic memory allocation functions */ void *snd_malloc_pages(size_t size, gfp_t gfp_flags); void snd_free_pages(void *ptr, size_t size); #endif /* __SOUND_MEMALLOC_H */