Re: [PATCH 5/7] powerpc: Implement a default flush_dcache_all

On Thu, 20 Jun 2024 at 00:28, Tom Rini trini@konsulko.com wrote:

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@konsulko.com

arch/powerpc/lib/cache.c | 9 +++++++++ 1 file changed, 9 insertions(+)

diff --git a/arch/powerpc/lib/cache.c b/arch/powerpc/lib/cache.c index e480b2696494..130318d745aa 100644 --- a/arch/powerpc/lib/cache.c +++ b/arch/powerpc/lib/cache.c @@ -43,3 +43,12 @@ void flush_cache(ulong start_addr, ulong size) /* flush prefetch queue */ asm volatile("isync" : : : "memory"); }

+/*

• • Default implementation:
• • do a range flush for the entire range
• */

+void flush_dcache_all(void) +{

•   flush_dcache_range(0, ~0);
  

+}

2.34.1

Acked-by: Ilias Apalodimas ilias.apalodimas@linaro.org