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Commit 518d4bb7 authored by David Howells's avatar David Howells
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MN10300: AM34: The current cacheflush routines operate by controlling tag regs 



The current cache flush and invalidate routines operate by controlling the
cache tag registers.  Rename the files and add config items to select them.

This makes it easier to support the use of other cache flush methods instead,
such as the use of AM34's area purge registers, if available.

Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
parent 93c10d3d

arch/mn10300/mm/Kconfig.cache

+20 −0
Original line number Diff line number Diff line
@@ -33,3 +33,23 @@ endchoice 


config MN10300_CACHE_ENABLED

	def_bool y if !MN10300_CACHE_DISABLED





choice

	prompt "CPU cache flush/invalidate method"

	default MN10300_CACHE_MANAGE_BY_TAG

	depends on MN10300_CACHE_ENABLED

	help

	  This determines the method by which CPU cache flushing and

	  invalidation is performed.



config MN10300_CACHE_MANAGE_BY_TAG

	bool "Use the cache tag registers directly"



endchoice



config MN10300_CACHE_INV_BY_TAG

	def_bool y if MN10300_CACHE_MANAGE_BY_TAG && MN10300_CACHE_ENABLED



config MN10300_CACHE_FLUSH_BY_TAG

	def_bool y if MN10300_CACHE_MANAGE_BY_TAG && MN10300_CACHE_WBACK

arch/mn10300/mm/Makefile

+3 −2
Original line number Diff line number Diff line
@@ -2,8 +2,9 @@ 
# Makefile for the MN10300-specific memory management code

#



cacheflush-y	:= cache.o cache-mn10300.o

cacheflush-$(CONFIG_MN10300_CACHE_WBACK) += cache-flush-mn10300.o

cacheflush-y	:= cache.o

cacheflush-$(CONFIG_MN10300_CACHE_INV_BY_TAG) += cache-inv-by-tag.o

cacheflush-$(CONFIG_MN10300_CACHE_FLUSH_BY_TAG) += cache-flush-by-tag.o



cacheflush-$(CONFIG_MN10300_CACHE_DISABLED) := cache-disabled.o