X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=arch%2Fm32r%2Fmm%2Fmmu.S;h=49a6d16a3d585d5b2a4d567ce7256162340130cc;hb=f3efbe582b5396d134024c03a5fa253f2a85d9a6;hp=8bb74b10dca76707a2d7c52e4fb3399fd3f26fbf;hpb=5f0b1437e0708772b6fecae5900c01c3b5f9b512;p=mv-sheeva.git

diff --git a/arch/m32r/mm/mmu.S b/arch/m32r/mm/mmu.S
index 8bb74b10dca..49a6d16a3d5 100644
--- a/arch/m32r/mm/mmu.S
+++ b/arch/m32r/mm/mmu.S
@@ -163,7 +163,8 @@ ENTRY(tme_handler)
 
 	; pte_data = (unsigned long)pte_val(*pte);
 	ld	r2, @r3			; r2: pte data
-	or3	r2, r2, #2		; _PAGE_PRESENT(=2)
+	and3	r3, r2, #2		; _PAGE_PRESENT(=2) check
+	beqz	r3, 3f
 
 	.fillinsn
 5:
@@ -264,11 +265,8 @@ ENTRY(tme_handler)
 ;
 	and3	r1, r1, #0xeff
 	ldi	r4, #611		; _KERNPG_TABLE(=611)
-	beq	r1, r4, 4f		; !pmd_bad(*pmd) ?
-	.fillinsn
-3:
-	ldi	r1, #0			; r1: pte_data = 0
-	bra	5f
+	bne	r1, r4, 3f		; !pmd_bad(*pmd) ?
+
 	.fillinsn
 4:
 	; pte = pte_offset(pmd, address);
@@ -282,8 +280,10 @@ ENTRY(tme_handler)
 	add	r4, r3			; r4: pte
 	; pte_data = (unsigned long)pte_val(*pte);
 	ld	r1, @r4			; r1: pte_data
-	.fillinsn
+	and3	r3, r1, #2		; _PAGE_PRESENT(=2) check
+	beqz	r3, 3f
 
+	.fillinsn
 ;; set tlb
 ; r0: address, r1: pte_data, r2: entry
 ; r3,r4: (free)
@@ -295,8 +295,7 @@ ENTRY(tme_handler)
 	and3	r4, r4, #(MMU_CONTEXT_ASID_MASK)
 	or	r3, r4
 	st	r3, @r2
-	or3	r4, r1, #2		; _PAGE_PRESENT(=2)
-	st	r4, @(4,r2)		; set_tlb_data(entry, pte_data);
+	st	r1, @(4,r2)		; set_tlb_data(entry, pte_data);
 
 	ld	r4, @sp+
 	ld	r3, @sp+
@@ -306,6 +305,11 @@ ENTRY(tme_handler)
 	ld	sp, @sp+
 	rte
 
+	.fillinsn
+3:
+	ldi	r1, #2			; r1: pte_data = 0 | _PAGE_PRESENT(=2)
+	bra	5b
+
 #else
 #error unknown isa configuration
 #endif