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Date: Thu, 11 Jun 2009 13:08:32 +0100 From: David Howells <dhowells@...hat.com> To: torvalds@...l.org, akpm@...ux-foundation.org Cc: linux-kernel@...r.kernel.org, linux-am33-list@...hat.com, David Howells <dhowells@...hat.com> Subject: [PATCH 1/2] MN10300: Don't set the dirty bit in the DTLB entries in the TLB-miss handler Remove the special handling for the Data TLB entry dirty bit in the TLB-miss handler. As the code stands, all that it does is to cause us to take a second data address exception to set the dirty bit. Instead, we can just let pte_mkdirty() set the bit. Signed-off-by: David Howells <dhowells@...hat.com> --- arch/mn10300/mm/tlb-mn10300.S | 18 ------------------ 1 files changed, 0 insertions(+), 18 deletions(-) diff --git a/arch/mn10300/mm/tlb-mn10300.S b/arch/mn10300/mm/tlb-mn10300.S index 7892080..7095147 100644 --- a/arch/mn10300/mm/tlb-mn10300.S +++ b/arch/mn10300/mm/tlb-mn10300.S @@ -165,24 +165,6 @@ ENTRY(itlb_aerror) ENTRY(dtlb_aerror) and ~EPSW_NMID,epsw add -4,sp - mov d1,(sp) - - movhu (MMUFCR_DFC),d1 # is it the initial valid write - # to this page? - and MMUFCR_xFC_INITWR,d1 - beq dtlb_pagefault # jump if not - - mov (DPTEL),d1 # set the dirty bit - # (don't replace with BSET!) - or _PAGE_DIRTY,d1 - mov d1,(DPTEL) - mov (sp),d1 - add 4,sp - rti - - ALIGN -dtlb_pagefault: - mov (sp),d1 SAVE_ALL add -4,sp # need to pass three params -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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