Commit 4d1608d0 authored by Jonathan Cameron's avatar Jonathan Cameron Committed by Conor Dooley
Browse files

cache: Make top level Kconfig menu a boolean dependent on RISCV 



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: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: default avatarConor Dooley <conor.dooley@microchip.com>
parent 9b9de5a5

drivers/cache/Kconfig

+11 −4
Original line number Diff line number Diff line 
# 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.



if CACHEMAINT_FOR_DMA



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.
@@ -16,7 +24,6 @@ config SIFIVE_CCACHE 


config STARFIVE_STARLINK_CACHE

	bool "StarFive StarLink Cache controller"

	depends on RISCV

	depends on ARCH_STARFIVE

	depends on 64BIT

	select RISCV_DMA_NONCOHERENT
@@ -24,4 +31,4 @@ config STARFIVE_STARLINK_CACHE 
	help

	  Support for the StarLink cache controller IP from StarFive.



endmenu
 
endif #CACHEMAINT_FOR_DMA