ppc/85xx: Introduce low level write_tlb function
Factor out the code we use to actually write a tlb entry.
set_tlb is a logical view of the TLB while write_tlb is a low level
matching the MAS registers.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/include/asm-ppc/mmu.h b/include/asm-ppc/mmu.h
index eda2959..8f382fd 100644
--- a/include/asm-ppc/mmu.h
+++ b/include/asm-ppc/mmu.h
@@ -450,6 +450,8 @@
(((epn) & MAS3_RPN) | (wimge))
#define FSL_BOOKE_MAS3(rpn, user, perms) \
(((rpn) & MAS3_RPN) | (user) | (perms))
+#define FSL_BOOKE_MAS7(rpn) \
+ (((u64)(rpn)) >> 32)
#define BOOKE_PAGESZ_1K 0
#define BOOKE_PAGESZ_4K 1
@@ -480,6 +482,8 @@
extern unsigned int setup_ddr_tlbs(unsigned int memsize_in_meg);
+extern void write_tlb(u32 _mas0, u32 _mas1, u32 _mas2, u32 _mas3, u32 _mas7);
+
#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 }
