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Commit b6b130b0 authored by Monika Singh's avatar Monika Singh
Browse files

qseecom: Add shmbrdige to allocate memory 



In case of send_modfd_cmd we are using older allocation
methods, which are using more time and causing performace
degradation, hence updating it to use shmbridge instead.

Change-Id: I01afa0ac36d584fcc1a84570dc159b3af99f48c8
Signed-off-by: default avatarMonika Singh <monising@codeaurora.org>
parent 1c2af547

drivers/misc/qseecom.c

+16 −7
Original line number Diff line number Diff line
@@ -4319,8 +4319,10 @@ static int __qseecom_send_modfd_cmd(struct qseecom_dev_handle *data, 
	struct qseecom_send_modfd_cmd_req req;

	struct qseecom_send_cmd_req send_cmd_req;

	void *origin_req_buf_kvirt, *origin_rsp_buf_kvirt;

	u32 tzbuflen;

	phys_addr_t pa;

	u8 *va = NULL;

	struct qtee_shm shm = {0};



	ret = copy_from_user(&req, argp, sizeof(req));

	if (ret) {
@@ -4352,11 +4354,11 @@ static int __qseecom_send_modfd_cmd(struct qseecom_dev_handle *data, 
				(uintptr_t)req.resp_buf);



	/* Allocate kernel buffer for request and response*/

	ret = __qseecom_alloc_coherent_buf(req.cmd_req_len + req.resp_len,

					&va, &pa);

	if (ret) {

		pr_err("Failed to allocate coherent buf, ret %d\n", ret);

		return ret;

	tzbuflen = PAGE_ALIGN(req.cmd_req_len + req.resp_len);

	va = __qseecom_alloc_tzbuf(tzbuflen, &pa, &shm);

	if (!va) {

		pr_err("error allocating in buffer\n");

		return -ENOMEM;

	}



	req.cmd_req_buf = va;
@@ -4373,7 +4375,11 @@ static int __qseecom_send_modfd_cmd(struct qseecom_dev_handle *data, 
		ret = __qseecom_update_cmd_buf(&req, false, data);

		if (ret)

			goto out;



		dmac_flush_range(req.cmd_req_buf, req.cmd_req_buf + tzbuflen);

		ret = __qseecom_send_cmd(data, &send_cmd_req, true);

		dmac_flush_range(req.cmd_req_buf, req.cmd_req_buf + tzbuflen);



		if (ret)

			goto out;

		ret = __qseecom_update_cmd_buf(&req, true, data);
@@ -4383,7 +4389,11 @@ static int __qseecom_send_modfd_cmd(struct qseecom_dev_handle *data, 
		ret = __qseecom_update_cmd_buf_64(&req, false, data);

		if (ret)

			goto out;



		dmac_flush_range(req.cmd_req_buf, req.cmd_req_buf + tzbuflen);

		ret = __qseecom_send_cmd(data, &send_cmd_req, true);

		dmac_flush_range(req.cmd_req_buf, req.cmd_req_buf + tzbuflen);



		if (ret)

			goto out;

		ret = __qseecom_update_cmd_buf_64(&req, true, data);
@@ -4397,8 +4407,7 @@ static int __qseecom_send_modfd_cmd(struct qseecom_dev_handle *data, 


out:

	if (req.cmd_req_buf)

		__qseecom_free_coherent_buf(req.cmd_req_len + req.resp_len,

			req.cmd_req_buf, (phys_addr_t)send_cmd_req.cmd_req_buf);

		__qseecom_free_tzbuf(&shm);



	return ret;

}