@@ -398,7 +398,6 @@ void dcache_disable(void)
DC_CTRL_CACHE_DISABLE);
}
-#ifndef CONFIG_SYS_DCACHE_OFF
/* Common Helper for Line Operations on D-cache */
static inline void __dcache_line_loop(unsigned long paddr, unsigned long sz,
const int cacheop)
@@ -448,6 +447,9 @@ static inline void __dc_entire_op(const int cacheop)
{
int aux;
+ if (!dcache_status())
+ return;
+
__before_dc_op(cacheop);
if (cacheop & OP_INV) /* Inv or flush-n-inv use same cmd reg */
@@ -463,14 +465,13 @@ static inline void __dc_entire_op(const int cacheop)
static inline void __dc_line_op(unsigned long paddr, unsigned long sz,
const int cacheop)
{
+ if (!dcache_status())
+ return;
+
__before_dc_op(cacheop);
__dcache_line_loop(paddr, sz, cacheop);
__after_dc_op(cacheop);
}
-#else
-#define __dc_entire_op(cacheop)
-#define __dc_line_op(paddr, sz, cacheop)
-#endif /* !CONFIG_SYS_DCACHE_OFF */
void invalidate_dcache_range(unsigned long start, unsigned long end)
{
As we are planning to get rid of dozens of ifdef's in cache.c we would better check dcache status before each entire/line operation then check CONFIG_SYS_DCACHE_OFF config option. This makes the code clear. Another advantage is that the dcache entire/line functions remain functional even if we enable dcache in runtime. As we need to check status before *each* function call and we dcache entire/line functions from different places we add this check directly into dcache entire/line functions instead of their callers to avoid code duplication. Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> --- arch/arc/lib/cache.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-)