From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/media/platform/amphion/vpu_cmds.c | 465 ++++++++++++++++++++++++++++++ 1 file changed, 465 insertions(+) create mode 100644 drivers/media/platform/amphion/vpu_cmds.c (limited to 'drivers/media/platform/amphion/vpu_cmds.c') diff --git a/drivers/media/platform/amphion/vpu_cmds.c b/drivers/media/platform/amphion/vpu_cmds.c new file mode 100644 index 000000000..235b71398 --- /dev/null +++ b/drivers/media/platform/amphion/vpu_cmds.c @@ -0,0 +1,465 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright 2020-2021 NXP + */ + +#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" + +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; + + 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) { + dev_err(inst->dev, "iface pack cmd %s fail\n", vpu_id_name(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; + vfree(cmd->pkt); + vfree(cmd); +} + +static int vpu_session_process_cmd(struct vpu_inst *inst, struct vpu_cmd_t *cmd) +{ + int ret; + + dev_dbg(inst->dev, "[%d]send cmd %s\n", inst->id, vpu_id_name(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 { + dev_err(inst->dev, "[%d] iface send cmd %s fail\n", inst->id, vpu_id_name(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)) + dev_err(inst->dev, "[%d] process cmd %s fail\n", + inst->id, vpu_id_name(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, long timeout, int try) +{ + struct vpu_core *core; + + if (!inst || !inst->core) + return -EINVAL; + + core = inst->core; + + call_void_vop(inst, wait_prepare); + wait_event_timeout(core->ack_wq, check_is_responsed(inst, key), timeout); + call_void_vop(inst, wait_finish); + + if (!check_is_responsed(inst, key)) { + if (try) + return -EINVAL; + dev_err(inst->dev, "[%d] sync session timeout\n", inst->id); + 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 void vpu_core_keep_active(struct vpu_core *core) +{ + struct vpu_rpc_event pkt; + + memset(&pkt, 0, sizeof(pkt)); + vpu_iface_pack_cmd(core, &pkt, 0, VPU_CMD_ID_NOOP, NULL); + + dev_dbg(core->dev, "try to wake up\n"); + mutex_lock(&core->cmd_lock); + if (vpu_cmd_send(core, &pkt)) + dev_err(core->dev, "fail to keep active\n"); + mutex_unlock(&core->cmd_lock); +} + +static int vpu_session_send_cmd(struct vpu_inst *inst, u32 id, void *data) +{ + unsigned long key; + int sync = false; + int ret; + + if (inst->id < 0) + return -EINVAL; + + ret = vpu_request_cmd(inst, id, data, &key, &sync); + if (ret) + goto exit; + + /* workaround for a firmware issue, + * firmware should be waked up by start or configure command, + * but there is a very small change that firmware failed to wakeup. + * in such case, try to wakeup firmware again by sending a noop command + */ + if (sync && (id == VPU_CMD_ID_CONFIGURE_CODEC || id == VPU_CMD_ID_START)) { + if (sync_session_response(inst, key, VPU_TIMEOUT_WAKEUP, 1)) + vpu_core_keep_active(inst->core); + else + goto exit; + } + + if (sync) + ret = sync_session_response(inst, key, VPU_TIMEOUT, 0); + +exit: + if (ret) + dev_err(inst->dev, "[%d] send cmd %s fail\n", inst->id, vpu_id_name(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) +{ + vpu_trace(inst->dev, "[%d]\n", inst->id); + + return vpu_session_send_cmd(inst, VPU_CMD_ID_START, NULL); +} + +int vpu_session_stop(struct vpu_inst *inst) +{ + int ret; + + vpu_trace(inst->dev, "[%d]\n", inst->id); + + ret = vpu_session_send_cmd(inst, VPU_CMD_ID_STOP, NULL); + /* workaround for a firmware bug, + * if the next command is too close after stop cmd, + * the firmware may enter wfi wrongly. + */ + usleep_range(3000, 5000); + return ret; +} + +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; + + if (!core || list_empty(&core->instances)) + return 0; + + 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) { + dev_err(core->dev, "snapshot timeout\n"); + return -EINVAL; + } + + return 0; +} + +int vpu_core_sw_reset(struct vpu_core *core) +{ + struct vpu_rpc_event pkt; + int ret; + + 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) { + dev_err(core->dev, "sw reset timeout\n"); + return -EINVAL; + } + + return 0; +} -- cgit v1.2.3