From: Konstantin Meskhidze <konstantin.meskhidze@huawei.com> hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/IC5EHB ----------------------------------------- Add base xcu_group structure, xcu_type enum, xcu_operation struct Add build support in Makefiles. Signed-off-by: Konstantin Meskhidze <konstantin.meskhidze@huawei.com> Signed-off-by: Hui Tang <tanghui20@.huawei.com> Signed-off-by: Liu Kai <liukai284@huawei.com> Signed-off-by: Xia Fukun <xiafukun@huawei.com> --- drivers/Makefile | 1 + drivers/xcu/Makefile | 2 + drivers/xcu/xcu_group.c | 77 +++++++++++++++++++++++++++++++++++++++ include/linux/xcu_group.h | 56 ++++++++++++++++++++++++++++ 4 files changed, 136 insertions(+) create mode 100644 drivers/xcu/Makefile create mode 100644 drivers/xcu/xcu_group.c create mode 100644 include/linux/xcu_group.h diff --git a/drivers/Makefile b/drivers/Makefile index 3955e605df14..b06192df4c3c 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -195,6 +195,7 @@ obj-$(CONFIG_GNSS) += gnss/ obj-$(CONFIG_INTERCONNECT) += interconnect/ obj-$(CONFIG_COUNTER) += counter/ obj-$(CONFIG_MOST) += most/ +obj-$(CONFIG_XCU_SCHEDULER) += xcu/ obj-$(CONFIG_PECI) += peci/ obj-$(CONFIG_HTE) += hte/ obj-$(CONFIG_DRM_ACCEL) += accel/ diff --git a/drivers/xcu/Makefile b/drivers/xcu/Makefile new file mode 100644 index 000000000000..575115b148ec --- /dev/null +++ b/drivers/xcu/Makefile @@ -0,0 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0 +obj-$(CONFIG_XCU_SCHEDULER) += xcu_group.o diff --git a/drivers/xcu/xcu_group.c b/drivers/xcu/xcu_group.c new file mode 100644 index 000000000000..3467f1ac9cfe --- /dev/null +++ b/drivers/xcu/xcu_group.c @@ -0,0 +1,77 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Code for NPU driver support + * + * Copyright (C) 2025-2026 Huawei Technologies Co., Ltd + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + */ +#include <linux/xcu_group.h> + +/* This function runs "run" callback for a given xcu_group + * and a given vstream that are passed within + * xcu_op_handler_params object + */ +int xcu_run(struct xcu_op_handler_params *params) +{ + return 0; +} + +/* This function runs "wait" callback for a given xcu_group + * and a given vstream that are passed within + * xcu_op_handler_params object + */ +int xcu_wait(struct xcu_op_handler_params *params) +{ + return 0; +} + +/* This function runs "complete" callback for a given xcu_group + * and a given vstream that are passed within + * xcu_op_handler_params object. + */ +int xcu_complete(struct xcu_op_handler_params *params) +{ + return 0; +} + +/* This function runs "finish" callback for a given xcu_group + * and a given vstream that are passed within + * xcu_op_handler_params object. + * + * This handler provides an interface to implement deallocation + * and freeing memory for SQ and CQ buffers. + */ +int xcu_finish(struct xcu_op_handler_params *params) +{ + return 0; +} + +/* This function runs a "alloc" callback for a given xcu_group + * and a given vstream that are passed within + * xcu_op_handler_params object. + * + * This handler provides an interface to implement allocation + * and registering memory for SQ and CQ buffers. + */ +int xcu_alloc(struct xcu_op_handler_params *params) +{ + return 0; +} + +static struct xcu_group __xcu_group_root = { + .id = 0, + .type = XCU_TYPE_ROOT, + .next_layer = IDR_INIT(next_layer), +}; + +struct xcu_group *xcu_group_root = &__xcu_group_root; +EXPORT_SYMBOL(xcu_group_root); diff --git a/include/linux/xcu_group.h b/include/linux/xcu_group.h new file mode 100644 index 000000000000..d1a6af4c8c47 --- /dev/null +++ b/include/linux/xcu_group.h @@ -0,0 +1,56 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __XSCHED_XCU_GROUP_H__ +#define __XSCHED_XCU_GROUP_H__ + +#include <linux/idr.h> +#include <uapi/linux/xcu_vstream.h> + +extern struct xcu_group *xcu_group_root; + +enum xcu_type { + XCU_TYPE_ROOT, + XCU_TYPE_XPU, +}; + +struct xcu_op_handler_params { +}; + +typedef int (*xcu_op_handler_fn_t)(struct xcu_op_handler_params *params); + +struct xcu_operation { + xcu_op_handler_fn_t run; + xcu_op_handler_fn_t finish; + xcu_op_handler_fn_t wait; + xcu_op_handler_fn_t complete; + xcu_op_handler_fn_t alloc; +}; + +struct xcu_group { + /* sq id. */ + uint32_t id; + + /* Type of XCU group. */ + enum xcu_type type; + + /* IDR for the next layer of XCU group tree. */ + struct idr next_layer; +}; + +#ifdef CONFIG_XCU_SCHEDULER +int xcu_group_attach(struct xcu_group *new_group, + struct xcu_group *previous_group); +void xcu_group_detach(struct xcu_group *group); +struct xcu_group *xcu_group_find(struct xcu_group *group, int id); +struct xcu_group *xcu_group_init(int id); +void xcu_group_free(struct xcu_group *group); + +extern int xcu_run(struct xcu_op_handler_params *params); +extern int xcu_wait(struct xcu_op_handler_params *params); +extern int xcu_complete(struct xcu_op_handler_params *params); +extern int xcu_finish(struct xcu_op_handler_params *params); +extern int xcu_alloc(struct xcu_op_handler_params *params); +extern int xcu_logic_alloc(struct xcu_op_handler_params *params); +extern int xcu_logic_free(struct xcu_op_handler_params *params); +#endif /* !CONFIG_XCU_SCHEDULER */ + +#endif /* __XSCHED_XCU_GROUP_H__ */ -- 2.34.1