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// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
*/
#include <linux/pm_runtime.h>
#include "iris_core.h"
#include "iris_firmware.h"
#include "iris_state.h"
#include "iris_vpu_common.h"
void iris_core_deinit(struct iris_core *core)
{
pm_runtime_resume_and_get(core->dev);
mutex_lock(&core->lock);
if (core->state != IRIS_CORE_DEINIT) {
iris_fw_unload(core);
iris_vpu_power_off(core);
iris_hfi_queues_deinit(core);
core->state = IRIS_CORE_DEINIT;
}
mutex_unlock(&core->lock);
pm_runtime_put_sync(core->dev);
}
static int iris_wait_for_system_response(struct iris_core *core)
{
u32 hw_response_timeout_val = core->iris_platform_data->hw_response_timeout;
int ret;
if (core->state == IRIS_CORE_ERROR)
return -EIO;
ret = wait_for_completion_timeout(&core->core_init_done,
msecs_to_jiffies(hw_response_timeout_val));
if (!ret) {
core->state = IRIS_CORE_ERROR;
return -ETIMEDOUT;
}
return 0;
}
int iris_core_init(struct iris_core *core)
{
int ret;
mutex_lock(&core->lock);
if (core->state == IRIS_CORE_INIT) {
ret = 0;
goto exit;
} else if (core->state == IRIS_CORE_ERROR) {
ret = -EINVAL;
goto error;
}
core->state = IRIS_CORE_INIT;
ret = iris_hfi_queues_init(core);
if (ret)
goto error;
ret = iris_vpu_power_on(core);
if (ret)
goto error_queue_deinit;
ret = iris_fw_load(core);
if (ret)
goto error_power_off;
ret = iris_vpu_boot_firmware(core);
if (ret)
goto error_unload_fw;
ret = iris_hfi_core_init(core);
if (ret)
goto error_unload_fw;
mutex_unlock(&core->lock);
return iris_wait_for_system_response(core);
error_unload_fw:
iris_fw_unload(core);
error_power_off:
iris_vpu_power_off(core);
error_queue_deinit:
iris_hfi_queues_deinit(core);
error:
core->state = IRIS_CORE_DEINIT;
exit:
mutex_unlock(&core->lock);
return ret;
}
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