ARC: mm: Move full_page computation into cache version agnostic wrapper

This reduces code duplication in each of cache version specific handlers

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>

diff --git a/arch/arc/mm/cache.c b/arch/arc/mm/cache.c
index 9285629..18132eb 100644 (file)
--- a/arch/arc/mm/cache.c
+++ b/arch/arc/mm/cache.c
@@ -28,7 +28,7 @@ unsigned long perip_base = ARC_UNCACHED_ADDR_SPACE; /* legacy value for boot */
 unsigned long perip_end = 0xFFFFFFFF; /* legacy value */
 
 void (*_cache_line_loop_ic_fn)(phys_addr_t paddr, unsigned long vaddr,
-                              unsigned long sz, const int cacheop);
+                              unsigned long sz, const int op, const int full_page);
 
 void (*__dma_cache_wback_inv)(phys_addr_t start, unsigned long sz);
 void (*__dma_cache_inv)(phys_addr_t start, unsigned long sz);
@@ -233,11 +233,10 @@ slc_chk:
 
 static inline
 void __cache_line_loop_v2(phys_addr_t paddr, unsigned long vaddr,
-                         unsigned long sz, const int op)
+                         unsigned long sz, const int op, const int full_page)
 {
        unsigned int aux_cmd;
        int num_lines;
-       const int full_page = __builtin_constant_p(sz) && sz == PAGE_SIZE;
 
        if (op == OP_INV_IC) {
                aux_cmd = ARC_REG_IC_IVIL;
@@ -279,11 +278,10 @@ void __cache_line_loop_v2(phys_addr_t paddr, unsigned long vaddr,
  */
 static inline
 void __cache_line_loop_v3(phys_addr_t paddr, unsigned long vaddr,
-                         unsigned long sz, const int op)
+                         unsigned long sz, const int op, const int full_page)
 {
        unsigned int aux_cmd, aux_tag;
        int num_lines;
-       const int full_page = __builtin_constant_p(sz) && sz == PAGE_SIZE;
 
        if (op == OP_INV_IC) {
                aux_cmd = ARC_REG_IC_IVIL;
@@ -349,17 +347,16 @@ void __cache_line_loop_v3(phys_addr_t paddr, unsigned long vaddr,
  */
 static inline
 void __cache_line_loop_v4(phys_addr_t paddr, unsigned long vaddr,
-                         unsigned long sz, const int cacheop)
+                         unsigned long sz, const int op, const int full_page)
 {
        unsigned int aux_cmd;
        int num_lines;
-       const int full_page_op = __builtin_constant_p(sz) && sz == PAGE_SIZE;
 
-       if (cacheop == OP_INV_IC) {
+       if (op == OP_INV_IC) {
                aux_cmd = ARC_REG_IC_IVIL;
        } else {
                /* d$ cmd: INV (discard or wback-n-discard) OR FLUSH (wback) */
-               aux_cmd = cacheop & OP_INV ? ARC_REG_DC_IVDL : ARC_REG_DC_FLDL;
+               aux_cmd = op & OP_INV ? ARC_REG_DC_IVDL : ARC_REG_DC_FLDL;
        }
 
        /* Ensure we properly floor/ceil the non-line aligned/sized requests
@@ -368,7 +365,7 @@ void __cache_line_loop_v4(phys_addr_t paddr, unsigned long vaddr,
         *  -@paddr will be cache-line aligned already (being page aligned)
         *  -@sz will be integral multiple of line size (being page sized).
         */
-       if (!full_page_op) {
+       if (!full_page) {
                sz += paddr & ~CACHE_LINE_MASK;
                paddr &= CACHE_LINE_MASK;
        }
@@ -381,7 +378,7 @@ void __cache_line_loop_v4(phys_addr_t paddr, unsigned long vaddr,
         *   - (and needs to be written before the lower 32 bits)
         */
        if (is_pae40_enabled()) {
-               if (cacheop == OP_INV_IC)
+               if (op == OP_INV_IC)
                        /*
                         * Non aliasing I-cache in HS38,
                         * aliasing I-cache handled in __cache_line_loop_v3()
@@ -486,13 +483,14 @@ static void __dc_enable(void)
 static inline void __dc_line_op(phys_addr_t paddr, unsigned long vaddr,
                                unsigned long sz, const int op)
 {
+       const int full_page = __builtin_constant_p(sz) && sz == PAGE_SIZE;
        unsigned long flags;
 
        local_irq_save(flags);
 
        __before_dc_op(op);
 
-       __cache_line_loop(paddr, vaddr, sz, op);
+       __cache_line_loop(paddr, vaddr, sz, op, full_page);
 
        __after_dc_op(op);
 
@@ -521,10 +519,11 @@ static inline void
 __ic_line_inv_vaddr_local(phys_addr_t paddr, unsigned long vaddr,
                          unsigned long sz)
 {
+       const int full_page = __builtin_constant_p(sz) && sz == PAGE_SIZE;
        unsigned long flags;
 
        local_irq_save(flags);
-       (*_cache_line_loop_ic_fn)(paddr, vaddr, sz, OP_INV_IC);
+       (*_cache_line_loop_ic_fn)(paddr, vaddr, sz, OP_INV_IC, full_page);
        local_irq_restore(flags);
 }