1 files changed, 43 insertions, 14 deletions

diff --git a/include/asm-sparc64/mmu.h b/include/asm-sparc64/mmu.h
index 8627eed6e83d..2d4f2ea9568a 100644
--- a/include/asm-sparc64/mmu.h
+++ b/include/asm-sparc64/mmu.h
@@ -4,20 +4,9 @@
 #include <linux/config.h>
 #include <asm/page.h>
 #include <asm/const.h>
+#include <asm/hypervisor.h>
 
-/*
- * For the 8k pagesize kernel, use only 10 hw context bits to optimize some
- * shifts in the fast tlbmiss handlers, instead of all 13 bits (specifically
- * for vpte offset calculation). For other pagesizes, this optimization in
- * the tlbhandlers can not be done; but still, all 13 bits can not be used
- * because the tlb handlers use "andcc" instruction which sign extends 13
- * bit arguments.
- */
-#if PAGE_SHIFT == 13
-#define CTX_NR_BITS             10
-#else
-#define CTX_NR_BITS             12
-#endif
+#define CTX_NR_BITS             13
 
 #define TAG_CONTEXT_BITS        ((_AC(1,UL) << CTX_NR_BITS) - _AC(1,UL))
 
@@ -90,10 +79,50 @@
 
 #ifndef __ASSEMBLY__
 
+#define TSB_ENTRY_ALIGNMENT     16
+
+struct tsb {
+        unsigned long tag;
+        unsigned long pte;
+} __attribute__((aligned(TSB_ENTRY_ALIGNMENT)));
+
+extern void __tsb_insert(unsigned long ent, unsigned long tag, unsigned long pte);
+extern void tsb_flush(unsigned long ent, unsigned long tag);
+extern void tsb_init(struct tsb *tsb, unsigned long size);
+
+struct tsb_config {
+        struct tsb              *tsb;
+        unsigned long           tsb_rss_limit;
+        unsigned long           tsb_nentries;
+        unsigned long           tsb_reg_val;
+        unsigned long           tsb_map_vaddr;
+        unsigned long           tsb_map_pte;
+};
+
+#define MM_TSB_BASE     0
+
+#ifdef CONFIG_HUGETLB_PAGE
+#define MM_TSB_HUGE     1
+#define MM_NUM_TSBS     2
+#else
+#define MM_NUM_TSBS     1
+#endif
+
 typedef struct {
-        unsigned long   sparc64_ctx_val;
+        spinlock_t              lock;
+        unsigned long           sparc64_ctx_val;
+        unsigned long           huge_pte_count;
+        struct tsb_config       tsb_block[MM_NUM_TSBS];
+        struct hv_tsb_descr     tsb_descr[MM_NUM_TSBS];
 } mm_context_t;
 
 #endif /* !__ASSEMBLY__ */
 
+#define TSB_CONFIG_TSB          0x00
+#define TSB_CONFIG_RSS_LIMIT    0x08
+#define TSB_CONFIG_NENTRIES     0x10
+#define TSB_CONFIG_REG_VAL      0x18
+#define TSB_CONFIG_MAP_VADDR    0x20
+#define TSB_CONFIG_MAP_PTE      0x28
+
 #endif /* __MMU_H */