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J . Mercier" , =?UTF-8?q?Christian=20K=C3=B6nig?= , Matthias Brugger , , , , , , , Subject: [PATCH v4,09/22] media: mediatek: vcodec: allocate tee share memory Date: Mon, 29 Jan 2024 14:30:12 +0800 Message-ID: <20240129063025.29251-10-yunfei.dong@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240129063025.29251-1-yunfei.dong@mediatek.com> References: <20240129063025.29251-1-yunfei.dong@mediatek.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-TM-AS-Product-Ver: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-AS-Result: No-10--8.400800-8.000000 X-TMASE-MatchedRID: TTrQ0Rwak8xA5/DRRISQHAPZZctd3P4BK2i9pofGVSuYBF1C0J2QPotf Mtu9FfbrPcGjGTU7TndXUz+XcOBhEYYCBZzro74fDB+ErBr0bAO2McZY43zJ423D6f6IpbLIyo3 1HV/erwydBDUJwKypkLvrVFvaS3pv9A9EfhuU0xx1e7Xbb6Im2pRy1HDTPOXaW+jwVKpqvlI9yB u1TZGrQeLzNWBegCW2wgn7iDBesS15zdAzex5xZqre0w1snPFv0u8FMYg9F/E8Ov8beXpQc96Iy B3d7It8jwYmA8M2eveUTGVAhB5EbQ== X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--8.400800-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: CAF33697948F636DC0B3C42444CBC459E7B69D5846104ADA4473D333C2EE6E0F2000:8 X-MTK: N Allocate two share memory for each lat and core hardware used to share information with optee-os. Msg buffer used to send ipi command and get ack command with optee-os, data buffer used to store vsi information which used for hardware decode. Signed-off-by: Yunfei Dong --- .../vcodec/decoder/mtk_vcodec_dec_optee.c | 80 ++++++++++++++++++- .../vcodec/decoder/mtk_vcodec_dec_optee.h | 32 ++++++++ 2 files changed, 111 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_optee.c b/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_optee.c index 38d9c1c1785a..611fb0e56480 100644 --- a/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_optee.c +++ b/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_optee.c @@ -47,13 +47,69 @@ int mtk_vcodec_dec_optee_private_init(struct mtk_vcodec_dec_dev *vcodec_dev) } EXPORT_SYMBOL_GPL(mtk_vcodec_dec_optee_private_init); +static void mtk_vcodec_dec_optee_deinit_memref(struct mtk_vdec_optee_ca_info *ca_info, + enum mtk_vdec_optee_data_index data_index) +{ + tee_shm_free(ca_info->shm_memref[data_index].msg_shm); +} + +static int mtk_vcodec_dec_optee_init_memref(struct tee_context *tee_vdec_ctx, + struct mtk_vdec_optee_ca_info *ca_info, + enum mtk_vdec_optee_data_index data_index) +{ + struct mtk_vdec_optee_shm_memref *shm_memref; + int alloc_size = 0, err = 0; + u64 shm_param_type = 0; + bool copy_buffer; + + switch (data_index) { + case OPTEE_MSG_INDEX: + shm_param_type = TEE_IOCTL_PARAM_ATTR_TYPE_MEMREF_INOUT; + alloc_size = MTK_VDEC_OPTEE_MSG_SIZE; + copy_buffer = true; + break; + case OPTEE_DATA_INDEX: + shm_param_type = TEE_IOCTL_PARAM_ATTR_TYPE_MEMREF_INOUT; + alloc_size = MTK_VDEC_OPTEE_HW_SIZE; + copy_buffer = false; + break; + default: + pr_err(MTK_DBG_VCODEC_STR "tee invalid data_index: %d.\n", data_index); + return -EINVAL; + } + + shm_memref = &ca_info->shm_memref[data_index]; + + /* Allocate dynamic shared memory with decoder TA */ + shm_memref->msg_shm_size = alloc_size; + shm_memref->param_type = shm_param_type; + shm_memref->copy_to_ta = copy_buffer; + shm_memref->msg_shm = tee_shm_alloc_kernel_buf(tee_vdec_ctx, shm_memref->msg_shm_size); + if (IS_ERR(shm_memref->msg_shm)) { + pr_err(MTK_DBG_VCODEC_STR "tee alloc buf fail: data_index:%d.\n", data_index); + return -ENOMEM; + } + + shm_memref->msg_shm_ca_buf = tee_shm_get_va(shm_memref->msg_shm, 0); + if (IS_ERR(shm_memref->msg_shm_ca_buf)) { + pr_err(MTK_DBG_VCODEC_STR "tee get shm va fail: data_index:%d.\n", data_index); + err = PTR_ERR(shm_memref->msg_shm_ca_buf); + goto err_get_msg_va; + } + + return err; +err_get_msg_va: + tee_shm_free(shm_memref->msg_shm); + return err; +} + static int mtk_vcodec_dec_optee_init_hw_info(struct mtk_vdec_optee_private *optee_private, enum mtk_vdec_hw_id hardware_index) { struct device *dev = &optee_private->vcodec_dev->plat_dev->dev; struct tee_ioctl_open_session_arg session_arg; struct mtk_vdec_optee_ca_info *ca_info; - int err = 0, session_func; + int err, i, j, session_func; /* Open lat and core session with vdec TA. */ switch (hardware_index) { @@ -87,6 +143,24 @@ static int mtk_vcodec_dec_optee_init_hw_info(struct mtk_vdec_optee_private *opte dev_dbg(dev, MTK_DBG_VCODEC_STR "open vdec tee session hw_id:%d session_id=%x.\n", hardware_index, ca_info->vdec_session_id); + /* Allocate dynamic shared memory with decoder TA */ + for (i = 0; i < OPTEE_MAX_INDEX; i++) { + err = mtk_vcodec_dec_optee_init_memref(optee_private->tee_vdec_ctx, ca_info, i); + if (err) { + dev_err(dev, MTK_DBG_VCODEC_STR "init vdec memref failed: %d.\n", i); + goto err_init_memref; + } + } + + return err; +err_init_memref: + if (i != 0) { + for (j = 0; j < i; j++) + mtk_vcodec_dec_optee_deinit_memref(ca_info, j); + } + + tee_client_close_session(optee_private->tee_vdec_ctx, ca_info->vdec_session_id); + return err; } @@ -94,12 +168,16 @@ static void mtk_vcodec_dec_optee_deinit_hw_info(struct mtk_vdec_optee_private *o enum mtk_vdec_hw_id hw_id) { struct mtk_vdec_optee_ca_info *ca_info; + int i; if (hw_id == MTK_VDEC_LAT0) ca_info = &optee_private->lat_ca; else ca_info = &optee_private->core_ca; + for (i = 0; i < OPTEE_MAX_INDEX; i++) + mtk_vcodec_dec_optee_deinit_memref(ca_info, i); + tee_client_close_session(optee_private->tee_vdec_ctx, ca_info->vdec_session_id); } diff --git a/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_optee.h b/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_optee.h index 8b1dca49331e..24aa63af9887 100644 --- a/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_optee.h +++ b/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_optee.h @@ -18,16 +18,48 @@ #define MTK_OPTEE_MAX_TEE_PARAMS 4 +#define MTK_VDEC_OPTEE_MSG_SIZE 128 +#define MTK_VDEC_OPTEE_HW_SIZE (8 * SZ_1K) + +/** + * struct mtk_vdec_optee_shm_memref - share memory reference params + * @msg_shm: message shared with TA in TEE. + * @msg_shm_ca_buf: ca buffer. + * + * @msg_shm_size: share message size. + * @param_type: each tee param types. + * @copy_to_ta: need to copy data from ca to share memory. + */ +struct mtk_vdec_optee_shm_memref { + struct tee_shm *msg_shm; + u8 *msg_shm_ca_buf; + + u32 msg_shm_size; + u64 param_type; + bool copy_to_ta; +}; + /** * struct mtk_vdec_optee_ca_info - ca related param * @vdec_session_id: optee TA session identifier. * @hw_id: hardware index. * @vdec_session_func: trusted application function id used specific to the TA. + * @shm_memref: share memory reference params. */ struct mtk_vdec_optee_ca_info { u32 vdec_session_id; enum mtk_vdec_hw_id hw_id; u32 vdec_session_func; + struct mtk_vdec_optee_shm_memref shm_memref[MTK_OPTEE_MAX_TEE_PARAMS]; +}; + +/* + * enum mtk_vdec_optee_data_index - used to indentify each share memory information + */ +enum mtk_vdec_optee_data_index { + OPTEE_MSG_INDEX = 0, + OPTEE_DATA_INDEX, + OPTEE_MAX_INDEX, }; /** -- 2.18.0