24efd2a62e
Add a new API for mapping DMA resources that needs to be attached to existing SMMU SID. Change-Id: I7a513d24ea30a5ead318e856e4c5317743fd0021 Signed-off-by: Vikram Panduranga <vpandura@codeaurora.org>
34 lines
1.1 KiB
C
34 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2013-2015, 2017-2019, The Linux Foundation. All rights reserved.
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*/
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#ifndef _LINUX_MSM_AUDIO_ION_H
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#define _LINUX_MSM_AUDIO_ION_H
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#include <dsp/q6asm-v2.h>
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#include <sound/pcm.h>
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#include <linux/msm_ion.h>
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#include <linux/dma-mapping.h>
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enum {
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MSM_AUDIO_ION_INV_CACHES = 0,
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MSM_AUDIO_ION_CLEAN_CACHES,
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};
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int msm_audio_ion_alloc(struct dma_buf **dma_buf, size_t bufsz,
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dma_addr_t *paddr, size_t *pa_len, void **vaddr);
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int msm_audio_ion_import(struct dma_buf **dma_buf, int fd,
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unsigned long *ionflag, size_t bufsz,
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dma_addr_t *paddr, size_t *pa_len, void **vaddr);
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int msm_audio_ion_free(struct dma_buf *dma_buf);
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int msm_audio_ion_mmap(struct audio_buffer *abuff, struct vm_area_struct *vma);
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int msm_audio_ion_cache_operations(struct audio_buffer *abuff, int cache_op);
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u32 msm_audio_populate_upper_32_bits(dma_addr_t pa);
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int msm_audio_ion_get_smmu_info(struct device **cb_dev, u64 *smmu_sid);
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int msm_audio_ion_dma_map(dma_addr_t *phys_addr, dma_addr_t *iova_base,
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u32 size, enum dma_data_direction dir);
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#endif /* _LINUX_MSM_AUDIO_ION_H */
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