diff options
| author | Alexei Starovoitov <ast@kernel.org> | 2026-09-30 09:59:20 +0000 |
|---|---|---|
| committer | Kumar Kartikeya Dwivedi <memxor@gmail.com> | 2026-10-01 18:40:05 +0200 |
| commit | aeb709c767aeca996e6011133e4f7bdb2a4af652 (patch) | |
| tree | c1c2bdbb4b6b7174a5bbe9e4c2c1f1c0204adcb5 /drivers/cache/Kconfig | |
| download | linux-stable-aeb709c767aeca996e6011133e4f7bdb2a4af652.tar.gz linux-stable-aeb709c767aeca996e6011133e4f7bdb2a4af652.zip | |
selftests/bpf: Add a test for objects stuck in free_by_rcu_ttracegrafted
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 <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20260930095920.601738-4-alexei.starovoitov@gmail.com
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Diffstat (limited to 'drivers/cache/Kconfig')
| -rw-r--r-- | drivers/cache/Kconfig | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/drivers/cache/Kconfig b/drivers/cache/Kconfig new file mode 100644 index 000000000..1518449d4 --- /dev/null +++ b/drivers/cache/Kconfig @@ -0,0 +1,56 @@ +# SPDX-License-Identifier: GPL-2.0 + +menuconfig CACHEMAINT_FOR_DMA + bool "Cache management for noncoherent DMA" + depends on RISCV + default y + help + These drivers implement support for noncoherent DMA master devices + on platforms that lack the standard CPU interfaces for this. + +if CACHEMAINT_FOR_DMA + +config AX45MP_L2_CACHE + bool "Andes Technology AX45MP L2 Cache controller" + select RISCV_NONSTANDARD_CACHE_OPS + help + Support for the L2 cache controller on Andes Technology AX45MP platforms. + +config SIFIVE_CCACHE + bool "Sifive Composable Cache controller" + depends on ARCH_SIFIVE || ARCH_STARFIVE + help + Support for the composable cache controller on SiFive platforms. + +config STARFIVE_STARLINK_CACHE + bool "StarFive StarLink Cache controller" + depends on ARCH_STARFIVE + depends on 64BIT + select RISCV_DMA_NONCOHERENT + select RISCV_NONSTANDARD_CACHE_OPS + help + Support for the StarLink cache controller IP from StarFive. + +endif #CACHEMAINT_FOR_DMA + +menuconfig CACHEMAINT_FOR_HOTPLUG + bool "Cache management for memory hot plug like operations" + depends on GENERIC_CPU_CACHE_MAINTENANCE + help + These drivers implement cache management for flows where it is necessary + to flush data from all host caches. + +if CACHEMAINT_FOR_HOTPLUG + +config HISI_SOC_HHA + tristate "HiSilicon Hydra Home Agent (HHA) device driver" + depends on (ARM64 && ACPI) || COMPILE_TEST + help + The Hydra Home Agent (HHA) is responsible for cache coherency + on the SoC. This drivers enables the cache maintenance functions of + the HHA. + + This driver can be built as a module. If so, the module will be + called hisi_soc_hha. + +endif #CACHEMAINT_FOR_HOTPLUG |