From 84edb85b950e31367010be54c2725d316a2793ba Mon Sep 17 00:00:00 2001 From: Varun Wadekar Date: Fri, 6 Dec 2013 17:19:09 +0530 Subject: security: tlk_driver: allocate uncached memory for FS operations Bug 1412144 Bug 1176001 Change-Id: If68806ee44a7009354efdda3d5cbf9e0e1f5f47f Signed-off-by: Varun Wadekar Reviewed-on: http://git-master/r/339205 --- security/tlk_driver/ote_fs.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'security') diff --git a/security/tlk_driver/ote_fs.c b/security/tlk_driver/ote_fs.c index cf02e8cb4ac4..b43eae69799f 100644 --- a/security/tlk_driver/ote_fs.c +++ b/security/tlk_driver/ote_fs.c @@ -23,6 +23,7 @@ #include #include #include +#include #include "ote_protocol.h" @@ -200,13 +201,17 @@ static int __init tlk_fs_register_handlers(void) { struct te_file_req_shmem *shmem_ptr; uint32_t smc_args[MAX_EXT_SMC_ARGS]; + dma_addr_t shmem_dma; - shmem_ptr = kzalloc(sizeof(struct te_file_req_shmem), GFP_KERNEL); + shmem_ptr = dma_alloc_coherent(NULL, sizeof(struct te_file_req_shmem), + &shmem_dma, GFP_KERNEL); if (!shmem_ptr) { pr_err("%s: no memory available for fs operations\n", __func__); return -ENOMEM; } + memset(shmem_ptr, 0, sizeof(struct te_file_req_shmem)); + INIT_LIST_HEAD(&req_list); init_completion(&req_ready); init_completion(&req_complete); -- cgit v1.2.3