[MIPS] Handle aliases in vmalloc correctly.

flush_cache_vmap / flush_cache_vunmap were calling flush_cache_all which -
having been deprecated - turned into a nop ...

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 15 insertions, 0 deletions

diff --git a/arch/mips/mm/c-tx39.c b/arch/mips/mm/c-tx39.c
index b09d56981d53..a9f7f1f5e9b4 100644
--- a/arch/mips/mm/c-tx39.c
+++ b/arch/mips/mm/c-tx39.c
@@ -122,6 +122,16 @@ static inline void tx39_blast_icache(void)
         local_irq_restore(flags);
 }
 
+static void tx39__flush_cache_vmap(void)
+{
+        tx39_blast_dcache();
+}
+
+static void tx39__flush_cache_vunmap(void)
+{
+        tx39_blast_dcache();
+}
+
 static inline void tx39_flush_cache_all(void)
 {
         if (!cpu_has_dc_aliases)
@@ -344,6 +354,8 @@ void __cpuinit tx39_cache_init(void)
         switch (current_cpu_type()) {
         case CPU_TX3912:
                 /* TX39/H core (writethru direct-map cache) */
+                __flush_cache_vmap      = tx39__flush_cache_vmap;
+                __flush_cache_vunmap    = tx39__flush_cache_vunmap;
                 flush_cache_all = tx39h_flush_icache_all;
                 __flush_cache_all       = tx39h_flush_icache_all;
                 flush_cache_mm          = (void *) tx39h_flush_icache_all;
@@ -369,6 +381,9 @@ void __cpuinit tx39_cache_init(void)
                 write_c0_wired(0);      /* set 8 on reset... */
                 /* board-dependent init code may set WBON */
 
+                __flush_cache_vmap      = tx39__flush_cache_vmap;
+                __flush_cache_vunmap    = tx39__flush_cache_vunmap;
+
                 flush_cache_all = tx39_flush_cache_all;
                 __flush_cache_all = tx39___flush_cache_all;
                 flush_cache_mm = tx39_flush_cache_mm;