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J . Mercier" , =?utf-8?q?Christian_K=C3=B6nig?= , Matthias Brugger , , , , , , Subject: [PATCH v7 09/28] media: mediatek: vcodec: allocate tee share memory Date: Sat, 20 Jul 2024 15:15:47 +0800 Message-ID: <20240720071606.27930-10-yunfei.dong@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240720071606.27930-1-yunfei.dong@mediatek.com> References: <20240720071606.27930-1-yunfei.dong@mediatek.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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 | 77 ++++++++++++++++++- .../vcodec/decoder/mtk_vcodec_dec_optee.h | 32 ++++++++ 2 files changed, 108 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 6fce32f9ba18..bcef86f54d84 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 @@ -44,13 +44,66 @@ 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; + 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); + tee_shm_free(shm_memref->msg_shm); + return PTR_ERR(shm_memref->msg_shm_ca_buf); + } + + return 0; +} + 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, session_func; /* Open lat and core session with vdec TA. */ switch (hardware_index) { @@ -84,6 +137,24 @@ 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: + --i; + while (i >= 0) + mtk_vcodec_dec_optee_deinit_memref(ca_info, i--); + + tee_client_close_session(optee_private->tee_vdec_ctx, ca_info->vdec_session_id); + return err; } @@ -91,12 +162,16 @@ 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 8a2a82874597..271545a864d3 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 - shared memory reference params + * @msg_shm: message shared with TA in TEE. + * @msg_shm_ca_buf: ca buffer. + * + * @msg_shm_size: shared 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: shared 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 shared memory information + */ +enum mtk_vdec_optee_data_index { + OPTEE_MSG_INDEX = 0, + OPTEE_DATA_INDEX, + OPTEE_MAX_INDEX, }; /**