Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1# SPDX-License-Identifier: GPL-2.0
2
3menuconfig CACHEMAINT_FOR_DMA
4 bool "Cache management for noncoherent DMA"
5 depends on RISCV
6 default y
7 help
8 These drivers implement support for noncoherent DMA master devices
9 on platforms that lack the standard CPU interfaces for this.
10
11if CACHEMAINT_FOR_DMA
12
13config AX45MP_L2_CACHE
14 bool "Andes Technology AX45MP L2 Cache controller"
15 select RISCV_NONSTANDARD_CACHE_OPS
16 help
17 Support for the L2 cache controller on Andes Technology AX45MP platforms.
18
19config SIFIVE_CCACHE
20 bool "Sifive Composable Cache controller"
21 depends on ARCH_SIFIVE || ARCH_STARFIVE
22 help
23 Support for the composable cache controller on SiFive platforms.
24
25config STARFIVE_STARLINK_CACHE
26 bool "StarFive StarLink Cache controller"
27 depends on ARCH_STARFIVE
28 depends on 64BIT
29 select RISCV_DMA_NONCOHERENT
30 select RISCV_NONSTANDARD_CACHE_OPS
31 help
32 Support for the StarLink cache controller IP from StarFive.
33
34endif #CACHEMAINT_FOR_DMA
35
36menuconfig CACHEMAINT_FOR_HOTPLUG
37 bool "Cache management for memory hot plug like operations"
38 depends on GENERIC_CPU_CACHE_MAINTENANCE
39 help
40 These drivers implement cache management for flows where it is necessary
41 to flush data from all host caches.
42
43if CACHEMAINT_FOR_HOTPLUG
44
45config HISI_SOC_HHA
46 tristate "HiSilicon Hydra Home Agent (HHA) device driver"
47 depends on (ARM64 && ACPI) || COMPILE_TEST
48 help
49 The Hydra Home Agent (HHA) is responsible for cache coherency
50 on the SoC. This drivers enables the cache maintenance functions of
51 the HHA.
52
53 This driver can be built as a module. If so, the module will be
54 called hisi_soc_hha.
55
56endif #CACHEMAINT_FOR_HOTPLUG