---

yaml
---
r: 21342
b: refs/heads/master
c: 09f9428
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 56fb4df6da76c35dca22036174e2d1edef83ff1f
+refs/heads/master: 09f94287f7260e03bbeab497e743691fafcc22c3

trunk/arch/sparc64/kernel/tsb.S

@@ -55,6 +55,17 @@ tsb_reload:
 	brgez,a,pn	%g5, tsb_do_fault
 	 stx		%g0, [%g1]
 
+	/* If it is larger than the base page size, don't
+	 * bother putting it into the TSB.
+	 */
+	srlx		%g5, 32, %g2
+	sethi		%hi(_PAGE_ALL_SZ_BITS >> 32), %g4
+	sethi		%hi(_PAGE_SZBITS >> 32), %g7
+	and		%g2, %g4, %g2
+	cmp		%g2, %g7
+	bne,a,pn	%xcc, tsb_tlb_reload
+	 stx		%g0, [%g1]
+
 	TSB_WRITE(%g1, %g5, %g6)
 
 	/* Finally, load TLB and return from trap.  */

trunk/arch/sparc64/mm/tsb.c

@@ -8,6 +8,7 @@
 #include <asm/page.h>
 #include <asm/tlbflush.h>
 #include <asm/tlb.h>
+#include <asm/mmu_context.h>
 
 #define TSB_ENTRY_ALIGNMENT	16
 
@@ -82,3 +83,30 @@ void flush_tsb_user(struct mmu_gather *mp)
 		}
 	}
 }
+
+int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
+{
+	unsigned long page = get_zeroed_page(GFP_KERNEL);
+
+	mm->context.sparc64_ctx_val = 0UL;
+	if (unlikely(!page))
+		return -ENOMEM;
+
+	mm->context.sparc64_tsb = (unsigned long *) page;
+
+	return 0;
+}
+
+void destroy_context(struct mm_struct *mm)
+{
+	free_page((unsigned long) mm->context.sparc64_tsb);
+
+	spin_lock(&ctx_alloc_lock);
+
+	if (CTX_VALID(mm->context)) {
+		unsigned long nr = CTX_NRBITS(mm->context);
+		mmu_context_bmap[nr>>6] &= ~(1UL << (nr & 63));
+	}
+
+	spin_unlock(&ctx_alloc_lock);
+}

trunk/include/asm-sparc64/mmu_context.h

@@ -19,36 +19,8 @@ extern unsigned long tlb_context_cache;
 extern unsigned long mmu_context_bmap[];
 
 extern void get_new_mmu_context(struct mm_struct *mm);
-
-/* Initialize a new mmu context.  This is invoked when a new
- * address space instance (unique or shared) is instantiated.
- * This just needs to set mm->context to an invalid context.
- */
-#define init_new_context(__tsk, __mm)	\
-({	unsigned long __pg = get_zeroed_page(GFP_KERNEL); \
-	(__mm)->context.sparc64_ctx_val = 0UL; \
-	(__mm)->context.sparc64_tsb = \
-	  (unsigned long *) __pg; \
-	(__pg ? 0 : -ENOMEM); \
-})
-
-
-/* Destroy a dead context.  This occurs when mmput drops the
- * mm_users count to zero, the mmaps have been released, and
- * all the page tables have been flushed.  Our job is to destroy
- * any remaining processor-specific state, and in the sparc64
- * case this just means freeing up the mmu context ID held by
- * this task if valid.
- */
-#define destroy_context(__mm)					\
-do {	free_page((unsigned long)(__mm)->context.sparc64_tsb);	\
-	spin_lock(&ctx_alloc_lock);				\
-	if (CTX_VALID((__mm)->context)) {			\
-		unsigned long nr = CTX_NRBITS((__mm)->context);	\
-		mmu_context_bmap[nr>>6] &= ~(1UL << (nr & 63));	\
-	}							\
-	spin_unlock(&ctx_alloc_lock);				\
-} while(0)
+extern int init_new_context(struct task_struct *tsk, struct mm_struct *mm);
+extern void destroy_context(struct mm_struct *mm);
 
 extern unsigned long tsb_context_switch(unsigned long pgd_pa, unsigned long *tsb);
 

trunk/include/asm-sparc64/pgtable.h

@@ -116,6 +116,10 @@
 #define _PAGE_W		_AC(0x0000000000000002,UL) /* Writable               */
 #define _PAGE_G		_AC(0x0000000000000001,UL) /* Global                 */
 
+#define _PAGE_ALL_SZ_BITS	\
+	(_PAGE_SZ4MB | _PAGE_SZ512K | _PAGE_SZ64K | \
+	 _PAGE_SZ8K  | _PAGE_SZ32MB | _PAGE_SZ256MB)
+
 /* Here are the SpitFire software bits we use in the TTE's.
  *
  * WARNING: If you are going to try and start using some