[PATCH 1/7] m68k: Implement a default flush_dcache_all

Tom Rini trini at konsulko.com
Wed Jun 19 23:27:53 CEST 2024


Implement a weak default version of flush_dcache_all which is based on
the ARM default, which is to flush the entire range via
flush_dcache_range(...).

Signed-off-by: Tom Rini <trini at konsulko.com>
---
Cc: Huan Wang <alison.wang at nxp.com>
Cc: Angelo Dureghello <angelo at kernel-space.org>
---
 arch/m68k/lib/cache.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/m68k/lib/cache.c b/arch/m68k/lib/cache.c
index de04124404cf..dab834c1cbd8 100644
--- a/arch/m68k/lib/cache.c
+++ b/arch/m68k/lib/cache.c
@@ -134,6 +134,15 @@ void dcache_invalid(void)
 #endif
 }
 
+/*
+ * Default implementation:
+ * do a range flush for the entire range
+ */
+__weak void flush_dcache_all(void)
+{
+	flush_dcache_range(0, ~0);
+}
+
 __weak void invalidate_dcache_range(unsigned long start, unsigned long stop)
 {
 	/* An empty stub, real implementation should be in platform code */
-- 
2.34.1



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