e4faef1e35
Currently ion fd is used to extract ion handle to free ion client. ION FD is not valid if user-space application is crashed so ion handle is returned to the client during msm_audio_ion_phys_assign() API which is used to destroy ion client in msm_audio_ion_phys_free() API. Change-Id: Idcc4ca838741aac26662a679117af9d9c935e630 Signed-off-by: Vidyakumar Athota <vathota@codeaurora.org>
61 lines
2.3 KiB
C
61 lines
2.3 KiB
C
/*
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* Copyright (c) 2013-2015, 2017 The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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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 <sound/q6asm-v2.h>
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#include <sound/pcm.h>
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#include <linux/msm_ion.h>
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enum {
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HLOS_TO_ADSP = 1,
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ADSP_TO_HLOS,
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};
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#define VMID_CP_ADSP_SHARED 33
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int msm_audio_ion_alloc(const char *name, struct ion_client **client,
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struct ion_handle **handle, size_t bufsz,
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ion_phys_addr_t *paddr, size_t *pa_len, void **vaddr);
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int msm_audio_ion_import(const char *name, struct ion_client **client,
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struct ion_handle **handle, int fd,
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unsigned long *ionflag, size_t bufsz,
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ion_phys_addr_t *paddr, size_t *pa_len, void **vaddr);
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int msm_audio_ion_free(struct ion_client *client, struct ion_handle *handle);
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int msm_audio_ion_mmap(struct audio_buffer *substream,
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struct vm_area_struct *vma);
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bool msm_audio_ion_is_smmu_available(void);
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int msm_audio_ion_cache_operations(struct audio_buffer *abuff, int cache_op);
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struct ion_client *msm_audio_ion_client_create(const char *name);
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void msm_audio_ion_client_destroy(struct ion_client *client);
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int msm_audio_ion_import_legacy(const char *name, struct ion_client *client,
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struct ion_handle **handle, int fd,
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unsigned long *ionflag, size_t bufsz,
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ion_phys_addr_t *paddr, size_t *pa_len, void **vaddr);
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int msm_audio_ion_free_legacy(struct ion_client *client,
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struct ion_handle *handle);
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u32 msm_audio_populate_upper_32_bits(ion_phys_addr_t pa);
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int msm_audio_ion_phys_assign(const char *name, struct ion_client **client,
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struct ion_handle **handle,
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int fd, ion_phys_addr_t *paddr,
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size_t *pa_len, u8 assign_type);
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int msm_audio_ion_phys_free(struct ion_client *client,
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struct ion_handle *handle,
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ion_phys_addr_t *paddr,
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size_t *pa_len, u8 assign_type);
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#endif /* _LINUX_MSM_AUDIO_ION_H */
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