From dccbf4853a31a3f774f38c402209d23388d99f52 Mon Sep 17 00:00:00 2001 From: Akira Takeuchi Date: Wed, 27 Oct 2010 17:28:50 +0100 Subject: MN10300: Use the [ID]PTEL2 registers rather than [ID]PTEL for TLB control Use the [ID]PTEL2 registers rather than [ID]PTEL for TLB control as the bits are a more suitable layout. Signed-off-by: Akira Takeuchi Signed-off-by: Kiyoshi Owada Signed-off-by: David Howells --- arch/mn10300/mm/tlb-mn10300.S | 27 +++++++++++++++++++-------- 1 file changed, 19 insertions(+), 8 deletions(-) (limited to 'arch/mn10300/mm') diff --git a/arch/mn10300/mm/tlb-mn10300.S b/arch/mn10300/mm/tlb-mn10300.S index ccf622999a5b..b9940177d81b 100644 --- a/arch/mn10300/mm/tlb-mn10300.S +++ b/arch/mn10300/mm/tlb-mn10300.S @@ -61,10 +61,16 @@ ENTRY(itlb_miss) btst _PAGE_VALID,d2 beq itlb_miss_fault # jump if doesn't point to a page # (might be a swap id) +#if ((_PAGE_ACCESSED & 0xffffff00) == 0) bset _PAGE_ACCESSED,(0,a2) - and ~(xPTEL_UNUSED1|xPTEL_UNUSED2),d2 +#elif ((_PAGE_ACCESSED & 0xffff00ff) == 0) + bset +(_PAGE_ACCESSED >> 8),(1,a2) +#else +#error "_PAGE_ACCESSED value is out of range" +#endif + and ~xPTEL2_UNUSED1,d2 itlb_miss_set: - mov d2,(IPTEL) # change the TLB + mov d2,(IPTEL2) # change the TLB #ifdef CONFIG_GDBSTUB movm (sp),[d2,d3,a2] #endif @@ -118,10 +124,16 @@ ENTRY(dtlb_miss) btst _PAGE_VALID,d2 beq dtlb_miss_fault # jump if doesn't point to a page # (might be a swap id) +#if ((_PAGE_ACCESSED & 0xffffff00) == 0) bset _PAGE_ACCESSED,(0,a2) - and ~(xPTEL_UNUSED1|xPTEL_UNUSED2),d2 +#elif ((_PAGE_ACCESSED & 0xffff00ff) == 0) + bset +(_PAGE_ACCESSED >> 8),(1,a2) +#else +#error "_PAGE_ACCESSED value is out of range" +#endif + and ~xPTEL2_UNUSED1,d2 dtlb_miss_set: - mov d2,(DPTEL) # change the TLB + mov d2,(DPTEL2) # change the TLB #ifdef CONFIG_GDBSTUB movm (sp),[d2,d3,a2] #endif @@ -156,13 +168,12 @@ ENTRY(itlb_aerror) or 0x00010000,d1 # it's an instruction fetch # determine the page address - mov (IPTEU),a2 - mov a2,d0 + mov (IPTEU),d0 and PAGE_MASK,d0 mov d0,(12,sp) clr d0 - mov d0,(IPTEL) + mov d0,(IPTEL2) or EPSW_IE,epsw mov fp,d0 @@ -199,7 +210,7 @@ ENTRY(dtlb_aerror) mov d0,(12,sp) clr d0 - mov d0,(DPTEL) + mov d0,(DPTEL2) or EPSW_IE,epsw mov fp,d0 -- cgit