evie/android_kernel_oneplus_msm8998
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Merge "msm: camera: Find and return mapped fd's from the list"

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Linux Build Service Account 2017-01-28 00:47:00 -08:00 • committed by Gerrit - the friendly Code Review server
commit 8ddeb3ad18
1 changed files with 22 additions and 2 deletions
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24
drivers/media/platform/msm/camera_v2/common/cam_smmu_api.c
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@ -1,4 +1,4 @@
/* Copyright (c) 2014-2016, The Linux Foundation. All rights reserved.
/* Copyright (c) 2014-2017, 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
@ -1212,6 +1212,25 @@ static enum cam_smmu_buf_state cam_smmu_check_fd_in_list(int idx,
return CAM_SMMU_BUFF_NOT_EXIST;
}
static enum cam_smmu_buf_state cam_smmu_check_secure_fd_in_list(int idx,
int ion_fd, dma_addr_t *paddr_ptr,
size_t *len_ptr)
{
struct cam_sec_buff_info *mapping;
list_for_each_entry(mapping,
&iommu_cb_set.cb_info[idx].smmu_buf_list,
list) {
if (mapping->ion_fd == ion_fd) {
mapping->ref_count++;
*paddr_ptr = mapping->paddr;
*len_ptr = mapping->len;
return CAM_SMMU_BUFF_EXIST;
}
}
return CAM_SMMU_BUFF_NOT_EXIST;
}
int cam_smmu_get_handle(char *identifier, int *handle_ptr)
{
int ret = 0;
@ -1935,7 +1954,8 @@ int cam_smmu_get_stage2_phy_addr(int handle,
goto get_addr_end;
}
buf_state = cam_smmu_check_fd_in_list(idx, ion_fd, paddr_ptr, len_ptr);
buf_state = cam_smmu_check_secure_fd_in_list(idx, ion_fd, paddr_ptr,
len_ptr);
if (buf_state == CAM_SMMU_BUFF_EXIST) {
CDBG("ion_fd:%d already in the list, give same addr back",
ion_fd);