android_kernel_samsung_msm8976/include/linux/msm_audio_ion.h
Laxminath Kasam d11c6a5da7 ASoC: change audio drivers to accomodate sid 33bit in 32-mode
In kernel 32-mode, SID address being 33bit is truncated.
To address this issue, update audio drivers to fetch
SMMU SID info from audio ion driver and fill the upper 32 bits
accordingly for 32-bit mode.

Change-Id: Ie2fa573def36d7b346d6a96249239ef1ecc7f8e0
Signed-off-by: Laxminath Kasam <lkasam@codeaurora.org>
2015-04-27 17:24:51 +05:30

46 lines
1.8 KiB
C

/*
* Copyright (c) 2013-2015, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 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.
*/
#ifndef _LINUX_MSM_AUDIO_ION_H
#define _LINUX_MSM_AUDIO_ION_H
#include <sound/q6asm-v2.h>
#include <sound/pcm.h>
#include <linux/msm_ion.h>
int msm_audio_ion_alloc(const char *name, struct ion_client **client,
struct ion_handle **handle, size_t bufsz,
ion_phys_addr_t *paddr, size_t *pa_len, void **vaddr);
int msm_audio_ion_import(const char *name, struct ion_client **client,
struct ion_handle **handle, int fd,
unsigned long *ionflag, size_t bufsz,
ion_phys_addr_t *paddr, size_t *pa_len, void **vaddr);
int msm_audio_ion_free(struct ion_client *client, struct ion_handle *handle);
int msm_audio_ion_mmap(struct audio_buffer *substream,
struct vm_area_struct *vma);
bool msm_audio_ion_is_smmu_available(void);
int msm_audio_ion_cache_operations(struct audio_buffer *abuff, int cache_op);
struct ion_client *msm_audio_ion_client_create(const char *name);
void msm_audio_ion_client_destroy(struct ion_client *client);
int msm_audio_ion_import_legacy(const char *name, struct ion_client *client,
struct ion_handle **handle, int fd,
unsigned long *ionflag, size_t bufsz,
ion_phys_addr_t *paddr, size_t *pa_len, void **vaddr);
int msm_audio_ion_free_legacy(struct ion_client *client,
struct ion_handle *handle);
u32 populate_upper_32_bits(ion_phys_addr_t pa);
#endif /* _LINUX_MSM_AUDIO_ION_H */