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Tue, 7 Sep 2021 09:50:17 +0000 From: Ming Qian To: mchehab@kernel.org, shawnguo@kernel.org, robh+dt@kernel.org, s.hauer@pengutronix.de Cc: hverkuil-cisco@xs4all.nl, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, aisheng.dong@nxp.com, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v8 07/15] media: amphion: implement vpu core communication based on mailbox Date: Tue, 7 Sep 2021 17:49:14 +0800 Message-Id: <978f68de22b817107bd84488870073ec79ea0128.1631002447.git.ming.qian@nxp.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: References: X-ClientProxiedBy: SG2PR02CA0097.apcprd02.prod.outlook.com (2603:1096:4:92::13) To AM6PR04MB6341.eurprd04.prod.outlook.com (2603:10a6:20b:d8::14) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from lsv11149.swis.cn-sha01.nxp.com (119.31.174.70) by SG2PR02CA0097.apcprd02.prod.outlook.com (2603:1096:4:92::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4478.19 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 08d46abc-b069-441c-9173-08d971e4e5b5 X-MS-Exchange-CrossTenant-AuthSource: AM6PR04MB6341.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Sep 2021 09:50:17.5396 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: 4Z/WELbrQLGsv16Et6INmD5lp3Ea5ZFcfK3yenbqnwYpwp2nrwxStA661dzlYztWWHmITawXac8xqKhfvUAA3w== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS8PR04MB7767 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org driver use mailbox to communicate with vpu core. and there are a command buffer and a message buffer. driver will write commands to the command buffer, then trigger a vpu core interrupt vpu core will write messages to the message buffer, then trigger a cpu interrupt. Signed-off-by: Ming Qian Signed-off-by: Shijie Qin Signed-off-by: Zhou Peng Reported-by: kernel test robot --- drivers/media/platform/amphion/vpu_cmds.c | 435 ++++++++++++++++++++++ drivers/media/platform/amphion/vpu_cmds.h | 25 ++ drivers/media/platform/amphion/vpu_mbox.c | 126 +++++++ drivers/media/platform/amphion/vpu_mbox.h | 16 + drivers/media/platform/amphion/vpu_msgs.c | 413 ++++++++++++++++++++ drivers/media/platform/amphion/vpu_msgs.h | 14 + 6 files changed, 1029 insertions(+) create mode 100644 drivers/media/platform/amphion/vpu_cmds.c create mode 100644 drivers/media/platform/amphion/vpu_cmds.h create mode 100644 drivers/media/platform/amphion/vpu_mbox.c create mode 100644 drivers/media/platform/amphion/vpu_mbox.h create mode 100644 drivers/media/platform/amphion/vpu_msgs.c create mode 100644 drivers/media/platform/amphion/vpu_msgs.h diff --git a/drivers/media/platform/amphion/vpu_cmds.c b/drivers/media/platform/amphion/vpu_cmds.c new file mode 100644 index 000000000000..01a79ff9eec6 --- /dev/null +++ b/drivers/media/platform/amphion/vpu_cmds.c @@ -0,0 +1,435 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright 2020-2021 NXP + */ + +#define TAG "CMD" + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "vpu.h" +#include "vpu_defs.h" +#include "vpu_cmds.h" +#include "vpu_rpc.h" +#include "vpu_mbox.h" +#include "vpu_log.h" + +struct vpu_cmd_request { + u32 request; + u32 response; + u32 handled; +}; + +struct vpu_cmd_t { + struct list_head list; + u32 id; + struct vpu_cmd_request *request; + struct vpu_rpc_event *pkt; + unsigned long key; +}; + +static struct vpu_cmd_request vpu_cmd_requests[] = { + { + .request = VPU_CMD_ID_CONFIGURE_CODEC, + .response = VPU_MSG_ID_MEM_REQUEST, + .handled = 1, + }, + { + .request = VPU_CMD_ID_START, + .response = VPU_MSG_ID_START_DONE, + .handled = 0, + }, + { + .request = VPU_CMD_ID_STOP, + .response = VPU_MSG_ID_STOP_DONE, + .handled = 0, + }, + { + .request = VPU_CMD_ID_ABORT, + .response = VPU_MSG_ID_ABORT_DONE, + .handled = 0, + }, + { + .request = VPU_CMD_ID_RST_BUF, + .response = VPU_MSG_ID_BUF_RST, + .handled = 1, + }, +}; + +static int vpu_cmd_send(struct vpu_core *core, struct vpu_rpc_event *pkt) +{ + int ret = 0; + + WARN_ON(!core || !pkt); + + ret = vpu_iface_send_cmd(core, pkt); + if (ret) + return ret; + + /*write cmd data to cmd buffer before trigger a cmd interrupt*/ + mb(); + vpu_mbox_send_type(core, COMMAND); + + return ret; +} + +static struct vpu_cmd_t *vpu_alloc_cmd(struct vpu_inst *inst, u32 id, void *data) +{ + struct vpu_cmd_t *cmd; + int i; + int ret; + + cmd = vzalloc(sizeof(*cmd)); + if (!cmd) + return NULL; + + cmd->pkt = vzalloc(sizeof(*cmd->pkt)); + if (!cmd->pkt) { + vfree(cmd); + return NULL; + } + + cmd->id = id; + ret = vpu_iface_pack_cmd(inst->core, cmd->pkt, inst->id, id, data); + if (ret) { + inst_err(inst, "iface pack cmd(%d) fail\n", id); + vfree(cmd->pkt); + vfree(cmd); + return NULL; + } + for (i = 0; i < ARRAY_SIZE(vpu_cmd_requests); i++) { + if (vpu_cmd_requests[i].request == id) { + cmd->request = &vpu_cmd_requests[i]; + break; + } + } + + return cmd; +} + +static void vpu_free_cmd(struct vpu_cmd_t *cmd) +{ + if (!cmd) + return; + if (cmd->pkt) + vfree(cmd->pkt); + vfree(cmd); +} + +static int vpu_session_process_cmd(struct vpu_inst *inst, struct vpu_cmd_t *cmd) +{ + int ret; + + if (!inst || !cmd || !cmd->pkt) + return -EINVAL; + + inst_dbg(inst, LVL_CMD, "send cmd(0x%x)\n", cmd->id); + vpu_iface_pre_send_cmd(inst); + ret = vpu_cmd_send(inst->core, cmd->pkt); + if (!ret) { + vpu_iface_post_send_cmd(inst); + vpu_inst_record_flow(inst, cmd->id); + } else { + inst_err(inst, "iface send cmd(0x%x) fail\n", cmd->id); + } + + return ret; +} + +static void vpu_process_cmd_request(struct vpu_inst *inst) +{ + struct vpu_cmd_t *cmd; + struct vpu_cmd_t *tmp; + + if (!inst || inst->pending) + return; + + list_for_each_entry_safe(cmd, tmp, &inst->cmd_q, list) { + list_del_init(&cmd->list); + if (vpu_session_process_cmd(inst, cmd)) + inst_err(inst, "process cmd(%d) fail\n", cmd->id); + if (cmd->request) { + inst->pending = (void *)cmd; + break; + } + vpu_free_cmd(cmd); + } +} + +static int vpu_request_cmd(struct vpu_inst *inst, u32 id, void *data, + unsigned long *key, int *sync) +{ + struct vpu_core *core; + struct vpu_cmd_t *cmd; + + if (!inst || !inst->core) + return -EINVAL; + + core = inst->core; + cmd = vpu_alloc_cmd(inst, id, data); + if (!cmd) + return -ENOMEM; + + mutex_lock(&core->cmd_lock); + cmd->key = core->cmd_seq++; + if (key) + *key = cmd->key; + if (sync) + *sync = cmd->request ? true : false; + list_add_tail(&cmd->list, &inst->cmd_q); + vpu_process_cmd_request(inst); + mutex_unlock(&core->cmd_lock); + + return 0; +} + +static void vpu_clear_pending(struct vpu_inst *inst) +{ + if (!inst || !inst->pending) + return; + + vpu_free_cmd(inst->pending); + wake_up_all(&inst->core->ack_wq); + inst->pending = NULL; +} + +static bool vpu_check_response(struct vpu_cmd_t *cmd, u32 response, u32 handled) +{ + struct vpu_cmd_request *request; + + if (!cmd || !cmd->request) + return false; + + request = cmd->request; + if (request->response != response) + return false; + if (request->handled != handled) + return false; + + return true; +} + +int vpu_response_cmd(struct vpu_inst *inst, u32 response, u32 handled) +{ + struct vpu_core *core; + + if (!inst || !inst->core) + return -EINVAL; + + core = inst->core; + mutex_lock(&core->cmd_lock); + if (vpu_check_response(inst->pending, response, handled)) + vpu_clear_pending(inst); + + vpu_process_cmd_request(inst); + mutex_unlock(&core->cmd_lock); + + return 0; +} + +void vpu_clear_request(struct vpu_inst *inst) +{ + struct vpu_cmd_t *cmd; + struct vpu_cmd_t *tmp; + + mutex_lock(&inst->core->cmd_lock); + if (inst->pending) + vpu_clear_pending(inst); + + list_for_each_entry_safe(cmd, tmp, &inst->cmd_q, list) { + list_del_init(&cmd->list); + vpu_free_cmd(cmd); + } + mutex_unlock(&inst->core->cmd_lock); +} + +static bool check_is_responsed(struct vpu_inst *inst, unsigned long key) +{ + struct vpu_core *core = inst->core; + struct vpu_cmd_t *cmd; + bool flag = true; + + mutex_lock(&core->cmd_lock); + cmd = inst->pending; + if (cmd && key == cmd->key) { + flag = false; + goto exit; + } + list_for_each_entry(cmd, &inst->cmd_q, list) { + if (key == cmd->key) { + flag = false; + break; + } + } +exit: + mutex_unlock(&core->cmd_lock); + + return flag; +} + +static int sync_session_response(struct vpu_inst *inst, unsigned long key) +{ + struct vpu_core *core; + + if (!inst || !inst->core) + return -EINVAL; + + core = inst->core; + + call_vop(inst, wait_prepare); + wait_event_timeout(core->ack_wq, + check_is_responsed(inst, key), + VPU_TIMEOUT); + call_vop(inst, wait_finish); + + if (!check_is_responsed(inst, key)) { + inst_err(inst, "sync session timeout\n"); + set_bit(inst->id, &core->hang_mask); + mutex_lock(&inst->core->cmd_lock); + vpu_clear_pending(inst); + mutex_unlock(&inst->core->cmd_lock); + return -EINVAL; + } + + return 0; +} + +static int vpu_session_send_cmd(struct vpu_inst *inst, u32 id, void *data) +{ + unsigned long key; + int sync = false; + int ret = -EINVAL; + + WARN_ON(!inst || !inst->core || inst->id < 0); + + ret = vpu_request_cmd(inst, id, data, &key, &sync); + if (!ret && sync) + ret = sync_session_response(inst, key); + + if (ret) + inst_err(inst, "send cmd(0x%x) fail\n", id); + + return ret; +} + +int vpu_session_configure_codec(struct vpu_inst *inst) +{ + return vpu_session_send_cmd(inst, VPU_CMD_ID_CONFIGURE_CODEC, NULL); +} + +int vpu_session_start(struct vpu_inst *inst) +{ + inst_dbg(inst, LVL_FLOW, "send start cmd\n"); + + return vpu_session_send_cmd(inst, VPU_CMD_ID_START, NULL); +} + +int vpu_session_stop(struct vpu_inst *inst) +{ + inst_dbg(inst, LVL_FLOW, "send stop cmd\n"); + + return vpu_session_send_cmd(inst, VPU_CMD_ID_STOP, NULL); +} + +int vpu_session_encode_frame(struct vpu_inst *inst, s64 timestamp) +{ + return vpu_session_send_cmd(inst, VPU_CMD_ID_FRAME_ENCODE, ×tamp); +} + +int vpu_session_alloc_fs(struct vpu_inst *inst, struct vpu_fs_info *fs) +{ + return vpu_session_send_cmd(inst, VPU_CMD_ID_FS_ALLOC, fs); +} + +int vpu_session_release_fs(struct vpu_inst *inst, struct vpu_fs_info *fs) +{ + return vpu_session_send_cmd(inst, VPU_CMD_ID_FS_RELEASE, fs); +} + +int vpu_session_abort(struct vpu_inst *inst) +{ + return vpu_session_send_cmd(inst, VPU_CMD_ID_ABORT, NULL); +} + +int vpu_session_rst_buf(struct vpu_inst *inst) +{ + return vpu_session_send_cmd(inst, VPU_CMD_ID_RST_BUF, NULL); +} + +int vpu_session_fill_timestamp(struct vpu_inst *inst, struct vpu_ts_info *info) +{ + return vpu_session_send_cmd(inst, VPU_CMD_ID_TIMESTAMP, info); +} + +int vpu_session_update_parameters(struct vpu_inst *inst, void *arg) +{ + if (inst->type & VPU_CORE_TYPE_DEC) + vpu_iface_set_decode_params(inst, arg, 1); + else + vpu_iface_set_encode_params(inst, arg, 1); + + return vpu_session_send_cmd(inst, VPU_CMD_ID_UPDATE_PARAMETER, arg); +} + +int vpu_session_debug(struct vpu_inst *inst) +{ + return vpu_session_send_cmd(inst, VPU_CMD_ID_DEBUG, NULL); +} + +int vpu_core_snapshot(struct vpu_core *core) +{ + struct vpu_inst *inst; + int ret; + + WARN_ON(!core || list_empty(&core->instances)); + + inst = list_first_entry(&core->instances, struct vpu_inst, list); + + reinit_completion(&core->cmp); + ret = vpu_session_send_cmd(inst, VPU_CMD_ID_SNAPSHOT, NULL); + if (ret) + return ret; + ret = wait_for_completion_timeout(&core->cmp, VPU_TIMEOUT); + if (!ret) { + vpu_err("core[%d] snapshot timeout\n", core->id); + return -EINVAL; + } + + return 0; +} + +int vpu_core_sw_reset(struct vpu_core *core) +{ + struct vpu_rpc_event pkt; + int ret; + + WARN_ON(!core); + + memset(&pkt, 0, sizeof(pkt)); + vpu_iface_pack_cmd(core, &pkt, 0, VPU_CMD_ID_FIRM_RESET, NULL); + + reinit_completion(&core->cmp); + mutex_lock(&core->cmd_lock); + ret = vpu_cmd_send(core, &pkt); + mutex_unlock(&core->cmd_lock); + if (ret) + return ret; + ret = wait_for_completion_timeout(&core->cmp, VPU_TIMEOUT); + if (!ret) { + vpu_err("core[%d] sw reset timeout\n", core->id); + return -EINVAL; + } + + return 0; +} diff --git a/drivers/media/platform/amphion/vpu_cmds.h b/drivers/media/platform/amphion/vpu_cmds.h new file mode 100644 index 000000000000..bc538d277bc9 --- /dev/null +++ b/drivers/media/platform/amphion/vpu_cmds.h @@ -0,0 +1,25 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright 2020-2021 NXP + */ + +#ifndef _AMPHION_VPU_CMDS_H +#define _AMPHION_VPU_CMDS_H + +int vpu_session_configure_codec(struct vpu_inst *inst); +int vpu_session_start(struct vpu_inst *inst); +int vpu_session_stop(struct vpu_inst *inst); +int vpu_session_abort(struct vpu_inst *inst); +int vpu_session_rst_buf(struct vpu_inst *inst); +int vpu_session_encode_frame(struct vpu_inst *inst, s64 timestamp); +int vpu_session_alloc_fs(struct vpu_inst *inst, struct vpu_fs_info *fs); +int vpu_session_release_fs(struct vpu_inst *inst, struct vpu_fs_info *fs); +int vpu_session_fill_timestamp(struct vpu_inst *inst, struct vpu_ts_info *info); +int vpu_session_update_parameters(struct vpu_inst *inst, void *arg); +int vpu_core_snapshot(struct vpu_core *core); +int vpu_core_sw_reset(struct vpu_core *core); +int vpu_response_cmd(struct vpu_inst *inst, u32 response, u32 handled); +void vpu_clear_request(struct vpu_inst *inst); +int vpu_session_debug(struct vpu_inst *inst); + +#endif diff --git a/drivers/media/platform/amphion/vpu_mbox.c b/drivers/media/platform/amphion/vpu_mbox.c new file mode 100644 index 000000000000..5f926837932f --- /dev/null +++ b/drivers/media/platform/amphion/vpu_mbox.c @@ -0,0 +1,126 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright 2020-2021 NXP + */ + +#define TAG "MBOX" +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "vpu.h" +#include "vpu_mbox.h" +#include "vpu_msgs.h" +#include "vpu_log.h" + +static void vpu_mbox_rx_callback(struct mbox_client *cl, void *msg) +{ + struct vpu_mbox *rx = container_of(cl, struct vpu_mbox, cl); + struct vpu_core *core = container_of(rx, struct vpu_core, rx); + + vpu_isr(core, *(u32 *)msg); +} + +static int vpu_mbox_request_channel(struct device *dev, struct vpu_mbox *mbox) +{ + struct mbox_chan *ch; + struct mbox_client *cl; + + if (!dev || !mbox) + return -EINVAL; + if (mbox->ch) + return 0; + + cl = &mbox->cl; + cl->dev = dev; + if (mbox->block) { + cl->tx_block = true; + cl->tx_tout = 1000; + } else { + cl->tx_block = false; + } + cl->knows_txdone = false; + cl->rx_callback = vpu_mbox_rx_callback; + + ch = mbox_request_channel_byname(cl, mbox->name); + if (IS_ERR(ch)) { + vpu_err("Failed to request mbox chan %s, ret : %ld\n", + mbox->name, PTR_ERR(ch)); + return PTR_ERR(ch); + } + + mbox->ch = ch; + return 0; +} + +int vpu_mbox_init(struct vpu_core *core) +{ + WARN_ON(!core); + + scnprintf(core->tx_type.name, sizeof(core->tx_type.name) - 1, "tx0"); + core->tx_type.block = true; + + scnprintf(core->tx_data.name, sizeof(core->tx_data.name) - 1, "tx1"); + core->tx_data.block = false; + + scnprintf(core->rx.name, sizeof(core->rx.name) - 1, "rx"); + core->rx.block = true; + + return 0; +} + +int vpu_mbox_request(struct vpu_core *core) +{ + int ret; + + WARN_ON(!core); + + ret = vpu_mbox_request_channel(core->dev, &core->tx_type); + if (ret) + goto error; + ret = vpu_mbox_request_channel(core->dev, &core->tx_data); + if (ret) + goto error; + ret = vpu_mbox_request_channel(core->dev, &core->rx); + if (ret) + goto error; + + vpu_dbg(LVL_DEBUG, "mbox request\n"); + return 0; +error: + vpu_mbox_free(core); + return ret; +} + +void vpu_mbox_free(struct vpu_core *core) +{ + WARN_ON(!core); + + mbox_free_channel(core->tx_type.ch); + mbox_free_channel(core->tx_data.ch); + mbox_free_channel(core->rx.ch); + core->tx_type.ch = NULL; + core->tx_data.ch = NULL; + core->rx.ch = NULL; + vpu_dbg(LVL_DEBUG, "mbox free\n"); +} + +void vpu_mbox_send_type(struct vpu_core *core, u32 type) +{ + mbox_send_message(core->tx_type.ch, &type); +} + +void vpu_mbox_send_msg(struct vpu_core *core, u32 type, u32 data) +{ + mbox_send_message(core->tx_data.ch, &data); + mbox_send_message(core->tx_type.ch, &type); +} + +void vpu_mbox_enable_rx(struct vpu_dev *dev) +{ +} diff --git a/drivers/media/platform/amphion/vpu_mbox.h b/drivers/media/platform/amphion/vpu_mbox.h new file mode 100644 index 000000000000..79cfd874e92b --- /dev/null +++ b/drivers/media/platform/amphion/vpu_mbox.h @@ -0,0 +1,16 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright 2020-2021 NXP + */ + +#ifndef _AMPHION_VPU_MBOX_H +#define _AMPHION_VPU_MBOX_H + +int vpu_mbox_init(struct vpu_core *core); +int vpu_mbox_request(struct vpu_core *core); +void vpu_mbox_free(struct vpu_core *core); +void vpu_mbox_send_msg(struct vpu_core *core, u32 type, u32 data); +void vpu_mbox_send_type(struct vpu_core *core, u32 type); +void vpu_mbox_enable_rx(struct vpu_dev *dev); + +#endif diff --git a/drivers/media/platform/amphion/vpu_msgs.c b/drivers/media/platform/amphion/vpu_msgs.c new file mode 100644 index 000000000000..8938fd27a5eb --- /dev/null +++ b/drivers/media/platform/amphion/vpu_msgs.c @@ -0,0 +1,413 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright 2020-2021 NXP + */ + +#define TAG "MSG" + +#include +#include +#include +#include +#include +#include +#include "vpu.h" +#include "vpu_core.h" +#include "vpu_rpc.h" +#include "vpu_mbox.h" +#include "vpu_defs.h" +#include "vpu_cmds.h" +#include "vpu_msgs.h" +#include "vpu_v4l2.h" +#include "vpu_log.h" + +#define VPU_PKT_HEADER_LENGTH 3 + +struct vpu_msg_handler { + u32 id; + void (*done)(struct vpu_inst *inst, struct vpu_rpc_event *pkt); +}; + +static void vpu_session_handle_start_done(struct vpu_inst *inst, struct vpu_rpc_event *pkt) +{ + WARN_ON(!inst || !inst->core); + + inst_dbg(inst, LVL_FLOW, "start done\n"); +} + +static void vpu_session_handle_mem_request(struct vpu_inst *inst, struct vpu_rpc_event *pkt) +{ + struct vpu_pkt_mem_req_data req_data; + + WARN_ON(!inst || !inst->core || !inst->ops); + + vpu_iface_unpack_msg_data(inst->core, pkt, (void *)&req_data); + inst_dbg(inst, LVL_FLOW, "mem request event : %d:%d %d:%d %d:%d\n", + req_data.enc_frame_size, + req_data.enc_frame_num, + req_data.ref_frame_size, + req_data.ref_frame_num, + req_data.act_buf_size, + req_data.act_buf_num); + call_vop(inst, mem_request, + req_data.enc_frame_size, + req_data.enc_frame_num, + req_data.ref_frame_size, + req_data.ref_frame_num, + req_data.act_buf_size, + req_data.act_buf_num); +} + +static void vpu_session_handle_stop_done(struct vpu_inst *inst, struct vpu_rpc_event *pkt) +{ + WARN_ON(!inst || !inst->core); + + inst_dbg(inst, LVL_FLOW, "stop done\n"); + + call_vop(inst, stop_done); +} + +static void vpu_session_handle_seq_hdr(struct vpu_inst *inst, struct vpu_rpc_event *pkt) +{ + struct vpu_dec_codec_info info; + + WARN_ON(!inst || !inst->core); + + info.stride = inst->core->res->stride; + vpu_iface_unpack_msg_data(inst->core, pkt, (void *)&info); + call_vop(inst, event_notify, VPU_MSG_ID_SEQ_HDR_FOUND, &info); +} + +static void vpu_session_handle_resolution_change(struct vpu_inst *inst, struct vpu_rpc_event *pkt) +{ + WARN_ON(!inst || !inst->core); + + call_vop(inst, event_notify, VPU_MSG_ID_RES_CHANGE, NULL); +} + +static void vpu_session_handle_enc_frame_done(struct vpu_inst *inst, struct vpu_rpc_event *pkt) +{ + struct vpu_enc_pic_info info; + + WARN_ON(!inst || !inst->core); + + vpu_iface_unpack_msg_data(inst->core, pkt, (void *)&info); + inst_dbg(inst, LVL_DEBUG, "frame id = %d, wptr = 0x%x, size = %d\n", + info.frame_id, info.wptr, info.frame_size); + call_vop(inst, get_one_frame, &info); +} + +static void vpu_session_handle_frame_request(struct vpu_inst *inst, struct vpu_rpc_event *pkt) +{ + struct vpu_fs_info fs; + + vpu_iface_unpack_msg_data(inst->core, pkt, &fs); + call_vop(inst, event_notify, VPU_MSG_ID_FRAME_REQ, &fs); +} + +static void vpu_session_handle_frame_release(struct vpu_inst *inst, struct vpu_rpc_event *pkt) +{ + + WARN_ON(!inst || !inst->core); + + if (inst->core->type == VPU_CORE_TYPE_ENC) { + struct vpu_frame_info info; + + memset(&info, 0, sizeof(info)); + vpu_iface_unpack_msg_data(inst->core, pkt, (void *)&info.sequence); + inst_dbg(inst, LVL_DEBUG, "frame release:%d\n", info.sequence); + info.type = inst->out_format.type; + call_vop(inst, buf_done, &info); + } else if (inst->core->type == VPU_CORE_TYPE_DEC) { + struct vpu_fs_info fs; + + vpu_iface_unpack_msg_data(inst->core, pkt, &fs); + call_vop(inst, event_notify, VPU_MSG_ID_FRAME_RELEASE, &fs); + } +} + +static void vpu_session_handle_input_done(struct vpu_inst *inst, struct vpu_rpc_event *pkt) +{ + + WARN_ON(!inst || !inst->core); + + inst_dbg(inst, LVL_DEBUG, "frame input done\n"); + call_vop(inst, input_done); +} + +static void vpu_session_handle_pic_decoded(struct vpu_inst *inst, struct vpu_rpc_event *pkt) +{ + struct vpu_dec_pic_info info; + + WARN_ON(!inst || !inst->core); + + vpu_iface_unpack_msg_data(inst->core, pkt, (void *)&info); + call_vop(inst, get_one_frame, &info); +} + +static void vpu_session_handle_pic_done(struct vpu_inst *inst, struct vpu_rpc_event *pkt) +{ + struct vpu_dec_pic_info info; + struct vpu_frame_info frame; + + WARN_ON(!inst || !inst->core); + + memset(&frame, 0, sizeof(frame)); + vpu_iface_unpack_msg_data(inst->core, pkt, (void *)&info); + if (inst->core->type == VPU_CORE_TYPE_DEC) + frame.type = inst->cap_format.type; + frame.id = info.id; + frame.luma = info.luma; + frame.skipped = info.skipped; + frame.timestamp = info.timestamp; + + call_vop(inst, buf_done, &frame); +} + +static void vpu_session_handle_eos(struct vpu_inst *inst, struct vpu_rpc_event *pkt) +{ + call_vop(inst, event_notify, VPU_MSG_ID_PIC_EOS, NULL); +} + +static void vpu_session_handle_error(struct vpu_inst *inst, struct vpu_rpc_event *pkt) +{ + call_vop(inst, event_notify, VPU_MSG_ID_UNSUPPORTED, NULL); + vpu_notify_codec_error(inst); +} + +static void vpu_session_handle_firmware_xcpt(struct vpu_inst *inst, struct vpu_rpc_event *pkt) +{ + char *str = (char *)pkt->data; + + inst_err(inst, "%s firmware xcpt: %s\n", + vpu_core_type_desc(inst->core->type), str); + call_vop(inst, event_notify, VPU_MSG_ID_FIRMWARE_XCPT, NULL); + set_bit(inst->id, &inst->core->hang_mask); + vpu_notify_codec_error(inst); +} + +struct vpu_msg_handler handlers[] = { + {VPU_MSG_ID_START_DONE, vpu_session_handle_start_done}, + {VPU_MSG_ID_STOP_DONE, vpu_session_handle_stop_done}, + {VPU_MSG_ID_MEM_REQUEST, vpu_session_handle_mem_request}, + {VPU_MSG_ID_SEQ_HDR_FOUND, vpu_session_handle_seq_hdr}, + {VPU_MSG_ID_RES_CHANGE, vpu_session_handle_resolution_change}, + {VPU_MSG_ID_FRAME_INPUT_DONE, vpu_session_handle_input_done}, + {VPU_MSG_ID_FRAME_REQ, vpu_session_handle_frame_request}, + {VPU_MSG_ID_FRAME_RELEASE, vpu_session_handle_frame_release}, + {VPU_MSG_ID_ENC_DONE, vpu_session_handle_enc_frame_done}, + {VPU_MSG_ID_PIC_DECODED, vpu_session_handle_pic_decoded}, + {VPU_MSG_ID_DEC_DONE, vpu_session_handle_pic_done}, + {VPU_MSG_ID_PIC_EOS, vpu_session_handle_eos}, + {VPU_MSG_ID_UNSUPPORTED, vpu_session_handle_error}, + {VPU_MSG_ID_FIRMWARE_XCPT, vpu_session_handle_firmware_xcpt}, +}; + +static int vpu_session_handle_msg(struct vpu_inst *inst, struct vpu_rpc_event *msg) +{ + int ret; + u32 msg_id; + struct vpu_msg_handler *handler = NULL; + unsigned int i; + + ret = vpu_iface_convert_msg_id(inst->core, msg->hdr.id); + if (ret < 0) + return -EINVAL; + + msg_id = ret; + inst_dbg(inst, LVL_EVT, "receive event(0x%x)\n", msg_id); + + for (i = 0; i < ARRAY_SIZE(handlers); i++) { + if (handlers[i].id == msg_id) { + handler = &handlers[i]; + break; + } + } + + if (handler && handler->done) + handler->done(inst, msg); + + vpu_response_cmd(inst, msg_id, 1); + + return 0; +} + +static bool vpu_inst_receive_msg(struct vpu_inst *inst, struct vpu_rpc_event *pkt) +{ + u32 bytes = sizeof(struct vpu_rpc_event_header); + u32 ret; + + memset(pkt, 0, sizeof(*pkt)); + if (kfifo_len(&inst->msg_fifo) < bytes) + return false; + + ret = kfifo_out(&inst->msg_fifo, pkt, bytes); + if (ret != bytes) + return false; + + if (pkt->hdr.num > 0) { + bytes = pkt->hdr.num * sizeof(u32); + ret = kfifo_out(&inst->msg_fifo, pkt->data, bytes); + if (ret != bytes) + return false; + } + + return true; +} + +void vpu_inst_run_work(struct work_struct *work) +{ + struct vpu_inst *inst = container_of(work, struct vpu_inst, msg_work); + struct vpu_rpc_event pkt; + + while (vpu_inst_receive_msg(inst, &pkt)) + vpu_session_handle_msg(inst, &pkt); +} + +static void vpu_inst_handle_msg(struct vpu_inst *inst, struct vpu_rpc_event *pkt) +{ + u32 bytes; + u32 id = pkt->hdr.id; + int ret; + + if (!inst->workqueue) { + vpu_session_handle_msg(inst, pkt); + return; + } + + bytes = sizeof(pkt->hdr) + pkt->hdr.num * sizeof(u32); + ret = kfifo_in(&inst->msg_fifo, pkt, bytes); + if (ret != bytes) + vpu_err("[%d:%d]overflow: %d\n", inst->core->id, inst->id, id); + queue_work(inst->workqueue, &inst->msg_work); +} + +static int vpu_handle_msg(struct vpu_core *core) +{ + struct vpu_rpc_event pkt; + struct vpu_inst *inst; + int ret; + + memset(&pkt, 0, sizeof(pkt)); + while (!vpu_iface_receive_msg(core, &pkt)) { + vpu_dbg(LVL_DEBUG, "event index = %d, id = %d, num = %d\n", + pkt.hdr.index, pkt.hdr.id, pkt.hdr.num); + + ret = vpu_iface_convert_msg_id(core, pkt.hdr.id); + if (ret < 0) + continue; + + inst = vpu_core_find_instance(core, pkt.hdr.index); + if (inst) { + vpu_response_cmd(inst, ret, 0); + mutex_lock(&core->cmd_lock); + vpu_inst_record_flow(inst, ret); + mutex_unlock(&core->cmd_lock); + + vpu_inst_handle_msg(inst, &pkt); + vpu_inst_put(inst); + } + memset(&pkt, 0, sizeof(pkt)); + } + + return 0; +} + +static int vpu_isr_thread(struct vpu_core *core, u32 irq_code) +{ + WARN_ON(!core); + + vpu_dbg(LVL_DEBUG, "core[%d] irq code = 0x%x\n", core->id, irq_code); + switch (irq_code) { + case VPU_IRQ_CODE_SYNC: + vpu_mbox_send_msg(core, PRC_BUF_OFFSET, core->rpc.phys - core->fw.phys); + vpu_mbox_send_msg(core, BOOT_ADDRESS, core->fw.phys); + vpu_mbox_send_msg(core, INIT_DONE, 2); + break; + case VPU_IRQ_CODE_BOOT_DONE: + break; + case VPU_IRQ_CODE_SNAPSHOT_DONE: + break; + default: + vpu_handle_msg(core); + break; + } + + return 0; +} + +static void vpu_core_run_msg_work(struct vpu_core *core) +{ + const unsigned int SIZE = sizeof(u32); + + while (kfifo_len(&core->msg_fifo) >= SIZE) { + u32 data; + + if (kfifo_out(&core->msg_fifo, &data, SIZE) == SIZE) + vpu_isr_thread(core, data); + } +} + +void vpu_msg_run_work(struct work_struct *work) +{ + struct vpu_core *core = container_of(work, struct vpu_core, msg_work); + unsigned long delay = msecs_to_jiffies(10); + + vpu_core_run_msg_work(core); + queue_delayed_work(core->workqueue, &core->msg_delayed_work, delay); +} + +void vpu_msg_delayed_work(struct work_struct *work) +{ + struct vpu_core *core; + struct delayed_work *dwork; + u32 bytes = sizeof(bytes); + u32 i; + + if (!work) + return; + + dwork = to_delayed_work(work); + core = container_of(dwork, struct vpu_core, msg_delayed_work); + if (kfifo_len(&core->msg_fifo) >= bytes) + vpu_core_run_msg_work(core); + + bytes = sizeof(struct vpu_rpc_event_header); + for (i = 0; i < core->supported_instance_count; i++) { + struct vpu_inst *inst = vpu_core_find_instance(core, i); + + if (!inst) + continue; + + if (inst->workqueue && kfifo_len(&inst->msg_fifo) >= bytes) + queue_work(inst->workqueue, &inst->msg_work); + + vpu_inst_put(inst); + } +} + + +int vpu_isr(struct vpu_core *core, u32 irq) +{ + WARN_ON(!core); + + vpu_dbg(LVL_DEBUG, "core[%d] irq code = 0x%x\n", core->id, irq); + switch (irq) { + case VPU_IRQ_CODE_SYNC: + break; + case VPU_IRQ_CODE_BOOT_DONE: + complete(&core->cmp); + break; + case VPU_IRQ_CODE_SNAPSHOT_DONE: + complete(&core->cmp); + break; + default: + break; + } + + if (kfifo_in(&core->msg_fifo, &irq, sizeof(irq)) != sizeof(irq)) + vpu_err("[%d]overflow: %d\n", core->id, irq); + queue_work(core->workqueue, &core->msg_work); + + return 0; +} diff --git a/drivers/media/platform/amphion/vpu_msgs.h b/drivers/media/platform/amphion/vpu_msgs.h new file mode 100644 index 000000000000..c466b4f62aad --- /dev/null +++ b/drivers/media/platform/amphion/vpu_msgs.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright 2020-2021 NXP + */ + +#ifndef _AMPHION_VPU_MSGS_H +#define _AMPHION_VPU_MSGS_H + +int vpu_isr(struct vpu_core *core, u32 irq); +void vpu_inst_run_work(struct work_struct *work); +void vpu_msg_run_work(struct work_struct *work); +void vpu_msg_delayed_work(struct work_struct *work); + +#endif