From: Konstantin Meskhidze <konstantin.meskhidze@huawei.com> hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/IC5EHB ----------------------------------------- Add xsched.h with xsched related prints. Add XSCHED_DEBUG_PRINTS configuration to switch_on/off xsched prints. 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> --- include/linux/xsched.h | 31 +++++++++++++++++++++++++++++++ kernel/xsched/Kconfig | 28 ++++++++++++++++++++++------ 2 files changed, 53 insertions(+), 6 deletions(-) create mode 100644 include/linux/xsched.h diff --git a/include/linux/xsched.h b/include/linux/xsched.h new file mode 100644 index 000000000000..0795ace316d5 --- /dev/null +++ b/include/linux/xsched.h @@ -0,0 +1,31 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __LINUX_XSCHED_H__ +#define __LINUX_XSCHED_H__ + +#ifndef pr_fmt +#define pr_fmt(fmt) fmt +#endif + +#define XSCHED_ERR_PREFIX "XSched [ERROR]: " +#define XSCHED_ERR(fmt, ...) \ + pr_err(KERN_ERR pr_fmt(XSCHED_ERR_PREFIX fmt), ##__VA_ARGS__) + +#define XSCHED_WARN_PREFIX "XSched [WARNING]: " +#define XSCHED_WARN(fmt, ...) \ + pr_warn(KERN_WARNING pr_fmt(XSCHED_WARN_PREFIX fmt), ##__VA_ARGS__) + +/* + * Debug specific prints for XSched + */ + +#define XSCHED_DEBUG_PREFIX "XSched [DEBUG]: " +#define XSCHED_DEBUG(fmt, ...) \ + pr_debug(KERN_DEBUG pr_fmt(XSCHED_DEBUG_PREFIX fmt), ##__VA_ARGS__) + +#define XSCHED_CALL_STUB() \ + XSCHED_DEBUG(" -----* %s @ %s called *----- \n", __func__, __FILE__) + +#define XSCHED_EXIT_STUB() \ + XSCHED_DEBUG(" -----* %s @ %s exited *----- \n", __func__, __FILE__) + +#endif /* !__LINUX_XSCHED_H__ */ diff --git a/kernel/xsched/Kconfig b/kernel/xsched/Kconfig index 093e39c11ca6..47a5361f2ad3 100644 --- a/kernel/xsched/Kconfig +++ b/kernel/xsched/Kconfig @@ -1,11 +1,27 @@ # SPDX-License-Identifier: GPL-2.0 config XCU_SCHEDULER - bool "Enable XSched functionality" - select CGROUP_XCU - default n + bool "Enable XSched functionality" + select CGROUP_XCU + default n + help + This option enables the XSched scheduler, a custom scheduling mechanism + designed for heterogeneous compute units (e.g., XPUs). It provides: + - Priority-based task scheduling with latency-sensitive optimizations. + - Integration with cgroups (via CGROUP_XCU) for resource isolation. + + Enable this only if your system requires advanced scheduling for XPU workloads. + If unsure, say N. config XCU_VSTREAM - bool "Enable vstream SQ/CQ buffers maintaining for XPU" - default n - depends on XCU_SCHEDULER + bool "Enable vstream SQ/CQ buffers maintaining for XPU" + default n + depends on XCU_SCHEDULER + help + This option enables virtual stream (vstream) support for XPUs, managing + submission queues (SQ) and completion queues (CQ) in kernel space. Key features: + - Zero-copy buffer management between user and kernel space. + - Batch processing of XPU commands to reduce MMIO overhead. + + Requires XCU_SCHEDULER to be enabled. May increase kernel memory usage. + Recommended for high-throughput XPU workloads. If unsure, say N. -- 2.34.1