From aeb709c767aeca996e6011133e4f7bdb2a4af652 Mon Sep 17 00:00:00 2001 From: Alexei Starovoitov Date: Wed, 30 Sep 2026 09:59:20 +0000 Subject: selftests/bpf: Add a test for objects stuck in free_by_rcu_ttrace Delete all elements of BPF_F_NO_PREALLOC hash map in one batch. The first free_bulk() starts RCU tasks trace GP and the rest of the elements are freed while it's in flight. Wait for call_rcu_ttrace_in_progress to clear in bpf_mem_cache of every cpu and check that free_by_rcu_ttrace and waiting_for_gp_ttrace lists are empty. Signed-off-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/20260930095920.601738-4-alexei.starovoitov@gmail.com Signed-off-by: Kumar Kartikeya Dwivedi --- drivers/cxl/pmu.h | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 drivers/cxl/pmu.h (limited to 'drivers/cxl/pmu.h') diff --git a/drivers/cxl/pmu.h b/drivers/cxl/pmu.h new file mode 100644 index 000000000..b1e9bcd9f --- /dev/null +++ b/drivers/cxl/pmu.h @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright(c) 2023 Huawei + * CXL Specification rev 3.0 Setion 8.2.7 (CPMU Register Interface) + */ +#ifndef CXL_PMU_H +#define CXL_PMU_H +#include + +enum cxl_pmu_type { + CXL_PMU_MEMDEV, +}; + +#define CXL_PMU_REGMAP_SIZE 0xe00 /* Table 8-32 CXL 3.0 specification */ +struct cxl_pmu { + struct device dev; + void __iomem *base; + int assoc_id; + int index; + enum cxl_pmu_type type; +}; + +#define to_cxl_pmu(dev) container_of(dev, struct cxl_pmu, dev) +struct cxl_pmu_regs; +int devm_cxl_pmu_add(struct device *parent, struct cxl_pmu_regs *regs, + int assoc_id, int idx, enum cxl_pmu_type type); + +#endif -- cgit v1.3.1