MIPS: mm: c-r4k: Build EVA {d,i}cache flushing functions

Build EVA specific cache flushing functions (ie cachee).
They will be used by a subsequent patch.

Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>

1 files changed, 47 insertions, 0 deletions

diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 6c37d21ef2fb..6332a9e84f01 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -123,6 +123,28 @@ static void r4k_blast_dcache_page_setup(void)
                 r4k_blast_dcache_page = r4k_blast_dcache_page_dc64;
 }
 
+#ifndef CONFIG_EVA
+#define r4k_blast_dcache_user_page  r4k_blast_dcache_page
+#else
+
+static void (*r4k_blast_dcache_user_page)(unsigned long addr);
+
+static void r4k_blast_dcache_user_page_setup(void)
+{
+        unsigned long  dc_lsize = cpu_dcache_line_size();
+
+        if (dc_lsize == 0)
+                r4k_blast_dcache_user_page = (void *)cache_noop;
+        else if (dc_lsize == 16)
+                r4k_blast_dcache_user_page = blast_dcache16_user_page;
+        else if (dc_lsize == 32)
+                r4k_blast_dcache_user_page = blast_dcache32_user_page;
+        else if (dc_lsize == 64)
+                r4k_blast_dcache_user_page = blast_dcache64_user_page;
+}
+
+#endif
+
 static void (* r4k_blast_dcache_page_indexed)(unsigned long addr);
 
 static void r4k_blast_dcache_page_indexed_setup(void)
@@ -245,6 +267,27 @@ static void r4k_blast_icache_page_setup(void)
                 r4k_blast_icache_page = blast_icache64_page;
 }
 
+#ifndef CONFIG_EVA
+#define r4k_blast_icache_user_page  r4k_blast_icache_page
+#else
+
+static void (*r4k_blast_icache_user_page)(unsigned long addr);
+
+static void __cpuinit r4k_blast_icache_user_page_setup(void)
+{
+        unsigned long ic_lsize = cpu_icache_line_size();
+
+        if (ic_lsize == 0)
+                r4k_blast_icache_user_page = (void *)cache_noop;
+        else if (ic_lsize == 16)
+                r4k_blast_icache_user_page = blast_icache16_user_page;
+        else if (ic_lsize == 32)
+                r4k_blast_icache_user_page = blast_icache32_user_page;
+        else if (ic_lsize == 64)
+                r4k_blast_icache_user_page = blast_icache64_user_page;
+}
+
+#endif
 
 static void (* r4k_blast_icache_page_indexed)(unsigned long addr);
 
@@ -1468,6 +1511,10 @@ void r4k_cache_init(void)
         r4k_blast_scache_page_setup();
         r4k_blast_scache_page_indexed_setup();
         r4k_blast_scache_setup();
+#ifdef CONFIG_EVA
+        r4k_blast_dcache_user_page_setup();
+        r4k_blast_icache_user_page_setup();
+#endif
 
         /*
          * Some MIPS32 and MIPS64 processors have physically indexed caches.