X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=arch%2Fsh%2Fmm%2Fpmb.c;h=ab81c602295f063906c6de58b398325b2ccd49cc;hb=cbaa118ecfd99fc5ed7adbd9c34a30e1c05e3c93;hp=b6a5a338145bf438037f40adfb3142a876a00e1c;hpb=1ea0975875294964853209927feccdf6bc8cf5f9;p=powerpc.git

diff --git a/arch/sh/mm/pmb.c b/arch/sh/mm/pmb.c
index b6a5a33814..ab81c60229 100644
--- a/arch/sh/mm/pmb.c
+++ b/arch/sh/mm/pmb.c
@@ -27,6 +27,7 @@
 #include <asm/pgtable.h>
 #include <asm/mmu.h>
 #include <asm/io.h>
+#include <asm/mmu_context.h>
 
 #define NR_PMB_ENTRIES	16
 
@@ -145,7 +146,7 @@ repeat:
 
 	ctrl_outl(vpn | PMB_V, mk_pmb_addr(pos));
 
-#ifdef CONFIG_SH_WRITETHROUGH
+#ifdef CONFIG_CACHE_WRITETHROUGH
 	/*
 	 * When we are in 32-bit address extended mode, CCR.CB becomes
 	 * invalid, so care must be taken to manually adjust cacheable
@@ -162,18 +163,18 @@ repeat:
 	return 0;
 }
 
-int set_pmb_entry(struct pmb_entry *pmbe)
+int __uses_jump_to_uncached set_pmb_entry(struct pmb_entry *pmbe)
 {
 	int ret;
 
-	jump_to_P2();
+	jump_to_uncached();
 	ret = __set_pmb_entry(pmbe->vpn, pmbe->ppn, pmbe->flags, &pmbe->entry);
-	back_to_P1();
+	back_to_cached();
 
 	return ret;
 }
 
-void clear_pmb_entry(struct pmb_entry *pmbe)
+void __uses_jump_to_uncached clear_pmb_entry(struct pmb_entry *pmbe)
 {
 	unsigned int entry = pmbe->entry;
 	unsigned long addr;
@@ -187,7 +188,7 @@ void clear_pmb_entry(struct pmb_entry *pmbe)
 		     entry >= NR_PMB_ENTRIES))
 		return;
 
-	jump_to_P2();
+	jump_to_uncached();
 
 	/* Clear V-bit */
 	addr = mk_pmb_addr(entry);
@@ -196,7 +197,7 @@ void clear_pmb_entry(struct pmb_entry *pmbe)
 	addr = mk_pmb_data(entry);
 	ctrl_outl(ctrl_inl(addr) & ~PMB_V, addr);
 
-	back_to_P1();
+	back_to_cached();
 
 	clear_bit(entry, &pmb_map);
 }
@@ -292,8 +293,7 @@ void pmb_unmap(unsigned long addr)
 	} while (pmbe);
 }
 
-static void pmb_cache_ctor(void *pmb, struct kmem_cache *cachep,
-			   unsigned long flags)
+static void pmb_cache_ctor(struct kmem_cache *cachep, void *pmb)
 {
 	struct pmb_entry *pmbe = pmb;
 
@@ -302,17 +302,17 @@ static void pmb_cache_ctor(void *pmb, struct kmem_cache *cachep,
 	pmbe->entry = PMB_NO_ENTRY;
 }
 
-static int __init pmb_init(void)
+static int __uses_jump_to_uncached pmb_init(void)
 {
 	unsigned int nr_entries = ARRAY_SIZE(pmb_init_map);
-	unsigned int entry;
+	unsigned int entry, i;
 
 	BUG_ON(unlikely(nr_entries >= NR_PMB_ENTRIES));
 
 	pmb_cache = kmem_cache_create("pmb", sizeof(struct pmb_entry), 0,
-				      SLAB_PANIC, pmb_cache_ctor, NULL);
+				      SLAB_PANIC, pmb_cache_ctor);
 
-	jump_to_P2();
+	jump_to_uncached();
 
 	/*
 	 * Ordering is important, P2 must be mapped in the PMB before we
@@ -330,7 +330,12 @@ static int __init pmb_init(void)
 	/* PMB.SE and UB[7] */
 	ctrl_outl((1 << 31) | (1 << 7), PMB_PASCR);
 
-	back_to_P1();
+	/* Flush out the TLB */
+	i =  ctrl_inl(MMUCR);
+	i |= MMUCR_TI;
+	ctrl_outl(i, MMUCR);
+
+	back_to_cached();
 
 	return 0;
 }