ARC: Cache: Move I$ entire operation to a separate function
Move instruction cache entire operation to a separate function
because we are planing to use it in other places like
sync_icache_dcache_all().
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
diff --git a/arch/arc/lib/cache.c b/arch/arc/lib/cache.c
index 04f1d9d..26f0a1f 100644
--- a/arch/arc/lib/cache.c
+++ b/arch/arc/lib/cache.c
@@ -315,20 +315,27 @@
IC_CTRL_CACHE_DISABLE);
}
+/* IC supports only invalidation */
+static inline void __ic_entire_invalidate(void)
+{
+ if (!icache_status())
+ return;
+
+ /* Any write to IC_IVIC register triggers invalidation of entire I$ */
+ write_aux_reg(ARC_AUX_IC_IVIC, 1);
+ /*
+ * As per ARC HS databook (see chapter 5.3.3.2)
+ * it is required to add 3 NOPs after each write to IC_IVIC.
+ */
+ __builtin_arc_nop();
+ __builtin_arc_nop();
+ __builtin_arc_nop();
+ read_aux_reg(ARC_AUX_IC_CTRL); /* blocks */
+}
+
void invalidate_icache_all(void)
{
- /* Any write to IC_IVIC register triggers invalidation of entire I$ */
- if (icache_status()) {
- write_aux_reg(ARC_AUX_IC_IVIC, 1);
- /*
- * As per ARC HS databook (see chapter 5.3.3.2)
- * it is required to add 3 NOPs after each write to IC_IVIC.
- */
- __builtin_arc_nop();
- __builtin_arc_nop();
- __builtin_arc_nop();
- read_aux_reg(ARC_AUX_IC_CTRL); /* blocks */
- }
+ __ic_entire_invalidate();
#ifdef CONFIG_ISA_ARCV2
if (slc_exists)