From: Jonathan Cameron <Jonathan.Cameron@huawei.com> driver inclusion category: feature bugzilla: https://atomgit.com/openeuler/kernel/issues/10043 ---------------------------------------------------------------------- The next patch will add a new type of cache maintenance driver responsible for flushing deeper than is necessary for non coherent DMA (current use case of drivers/cache drivers), as needed when performing operations such as memory hotplug and security unlocking of persistent memory. The two types of operation are similar enough to share a drivers/cache directory and MAINTAINERS but are otherwise currently unrelated. To avoid confusion have two separate menus. Each has dependencies that are implemented by making them boolean symbols, here CACHEMAINT_FOR_DMA which is dependent on RISCV as all driver are currently for platforms of that architecture. Set new symbol default to y to avoid breaking existing configs. This has no affect on actual code built, just visibility of the menu. Suggested-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Yushan Wang <wangyushan12@huawei.com> Signed-off-by: Hongye Lin <linhongye@h-partners.com> --- drivers/cache/Kconfig | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/cache/Kconfig b/drivers/cache/Kconfig index d6e5e3abaad8..79616b476d7b 100644 --- a/drivers/cache/Kconfig +++ b/drivers/cache/Kconfig @@ -1,11 +1,15 @@ # SPDX-License-Identifier: GPL-2.0 -menu "Cache Drivers" + +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. config AX45MP_L2_CACHE bool "Andes Technology AX45MP L2 Cache controller" - depends on RISCV select RISCV_NONSTANDARD_CACHE_OPS help Support for the L2 cache controller on Andes Technology AX45MP platforms. - -endmenu -- 2.33.0