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authorEugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>2018-03-21 15:58:47 +0300
committerAlexey Brodkin <abrodkin@synopsys.com>2018-03-21 17:06:37 +0300
commitc4ef14d2cc06ca7cca7e1484b5d9a8b1decb02ac (patch)
tree64bb622169e2ec562448864fedf24190a5e8032f /arch
parent16aeee81d9baa403f80cb0ac9bea1141243ab97d (diff)
ARC: Cache: Remove per-line I$ operations as unused
__cache_line_loop() function was copied from Linux kernel where per-line instruction cache operations are really used. In U-Boot we use only entire I$ ops, so we can drop support of per-line I$ ops from __cache_line_loop() because __cache_line_loop() is never called with OP_INV_IC parameter. Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arc/lib/cache.c30
1 files changed, 7 insertions, 23 deletions
diff --git a/arch/arc/lib/cache.c b/arch/arc/lib/cache.c
index 26f0a1ff9b..2252542f16 100644
--- a/arch/arc/lib/cache.c
+++ b/arch/arc/lib/cache.c
@@ -23,7 +23,6 @@
#define OP_INV 0x1
#define OP_FLUSH 0x2
-#define OP_INV_IC 0x3
/* Bit val in SLC_CONTROL */
#define SLC_CTRL_DIS 0x001
@@ -373,30 +372,15 @@ void dcache_disable(void)
}
#ifndef CONFIG_SYS_DCACHE_OFF
-/*
- * Common Helper for Line Operations on {I,D}-Cache
- */
-static inline void __cache_line_loop(unsigned long paddr, unsigned long sz,
- const int cacheop)
+/* Common Helper for Line Operations on D-cache */
+static inline void __dcache_line_loop(unsigned long paddr, unsigned long sz,
+ const int cacheop)
{
unsigned int aux_cmd;
-#if (CONFIG_ARC_MMU_VER == 3)
- unsigned int aux_tag;
-#endif
int num_lines;
- if (cacheop == OP_INV_IC) {
- aux_cmd = ARC_AUX_IC_IVIL;
-#if (CONFIG_ARC_MMU_VER == 3)
- aux_tag = ARC_AUX_IC_PTAG;
-#endif
- } else {
- /* d$ cmd: INV (discard or wback-n-discard) OR FLUSH (wback) */
- aux_cmd = cacheop & OP_INV ? ARC_AUX_DC_IVDL : ARC_AUX_DC_FLDL;
-#if (CONFIG_ARC_MMU_VER == 3)
- aux_tag = ARC_AUX_DC_PTAG;
-#endif
- }
+ /* d$ cmd: INV (discard or wback-n-discard) OR FLUSH (wback) */
+ aux_cmd = cacheop & OP_INV ? ARC_AUX_DC_IVDL : ARC_AUX_DC_FLDL;
sz += paddr & ~CACHE_LINE_MASK;
paddr &= CACHE_LINE_MASK;
@@ -405,7 +389,7 @@ static inline void __cache_line_loop(unsigned long paddr, unsigned long sz,
while (num_lines-- > 0) {
#if (CONFIG_ARC_MMU_VER == 3)
- write_aux_reg(aux_tag, paddr);
+ write_aux_reg(ARC_AUX_DC_PTAG, paddr);
#endif
write_aux_reg(aux_cmd, paddr);
paddr += l1_line_sz;
@@ -458,7 +442,7 @@ static inline void __dc_line_op(unsigned long paddr, unsigned long sz,
{
unsigned int ctrl_reg = __before_dc_op(cacheop);
- __cache_line_loop(paddr, sz, cacheop);
+ __dcache_line_loop(paddr, sz, cacheop);
__after_dc_op(cacheop, ctrl_reg);
}
#else