85xx: Introduce new tlb API
Add a set of functions to manipulate TLB entries:
* set_tlb() - write a tlb entry
* invalidate_tlb() - invalidate a tlb array
* disable_tlb() - disable a variable size tlb entry
* init_tlbs() - setup initial tlbs based on static table
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/include/asm-ppc/mmu.h b/include/asm-ppc/mmu.h
index 45a4764..ec1ca53 100644
--- a/include/asm-ppc/mmu.h
+++ b/include/asm-ppc/mmu.h
@@ -418,6 +418,37 @@
#define BOOKE_PAGESZ_256GB 14
#define BOOKE_PAGESZ_1TB 15
+#ifdef CONFIG_E500
+#ifndef __ASSEMBLY__
+extern void set_tlb(u8 tlb, u32 epn, u64 rpn,
+ u8 perms, u8 wimge,
+ u8 ts, u8 esel, u8 tsize, u8 iprot);
+extern void disable_tlb(u8 esel);
+extern void invalidate_tlb(u8 tlb);
+extern void init_tlbs(void);
+
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#define SET_TLB_ENTRY(_tlb, _epn, _rpn, _perms, _wimge, _ts, _esel, _sz, _iprot) \
+ { .tlb = _tlb, .epn = _epn, .rpn = _rpn, .perms = _perms, \
+ .wimge = _wimge, .ts = _ts, .esel = _esel, .tsize = _sz, .iprot = _iprot }
+
+struct fsl_e_tlb_entry {
+ u8 tlb;
+ u32 epn;
+ u64 rpn;
+ u8 perms;
+ u8 wimge;
+ u8 ts;
+ u8 esel;
+ u8 tsize;
+ u8 iprot;
+};
+
+extern struct fsl_e_tlb_entry tlb_table[];
+extern int num_tlb_entries;
+#endif
+#endif
+
#if defined(CONFIG_MPC86xx)
#define LAWBAR_BASE_ADDR 0x00FFFFFF
#define LAWAR_TRGT_IF 0x01F00000