Use SPR_xxx for the *MISS HASH CMP, etc.
This commit is contained in:
matt
parent
8a580d3ce9
commit
5d30ec2c7e
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@ -1,4 +1,4 @@
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/* $NetBSD: trap_subr.S,v 1.8 2001/06/17 13:39:02 simonb Exp $ */
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/* $NetBSD: trap_subr.S,v 1.9 2001/06/23 02:36:14 matt Exp $ */
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/*
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* Copyright (C) 1995, 1996 Wolfgang Solfrank.
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@ -229,38 +229,31 @@ _C_LABEL(decrsize) = .-_C_LABEL(decrint)
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* (Code essentially from the 603e User Manual, Chapter 5, but
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* corrected a lot.)
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*/
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#define DMISS 976
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#define DCMP 977
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#define HASH1 978
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#define HASH2 979
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#define IMISS 980
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#define ICMP 981
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#define RPA 982
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.globl _C_LABEL(tlbimiss),_C_LABEL(tlbimsize)
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_C_LABEL(tlbimiss):
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#ifdef PMAPDEBUG
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mfspr 2,IMISS /* exception address */
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mfspr 2,SPR_IMISS /* exception address */
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li 1,24 /* get rid of the lower */
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srw 2,2,1 /* 24 bits */
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li 1,1 /* Load 1 */
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cmpl 2,1,1 /* is it > 16MB */
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blt 99f /* nope, skip saving these SPRs */
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li 1,0xc0 /* arbitrary */
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mfspr 2,HASH1
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mfspr 2,SPR_HASH1
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stw 2,0(1)
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mfspr 2,HASH2
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mfspr 2,SPR_HASH2
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stw 2,4(1)
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mfspr 2,IMISS
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mfspr 2,SPR_IMISS
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stw 2,8(1)
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mfspr 2,ICMP
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mfspr 2,SPR_ICMP
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stw 2,12(1)
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99:
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#endif /* PMAPDEBUG */
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mfspr 2,HASH1 /* get first pointer */
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mfspr 2,SPR_HASH1 /* get first pointer */
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li 1,8
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mfctr 0 /* save counter */
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mfspr 3,ICMP /* get first compare value */
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mfspr 3,SPR_ICMP /* get first compare value */
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addi 2,2,-8 /* predec pointer */
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1:
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mtctr 1 /* load counter */
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@ -273,11 +266,11 @@ _C_LABEL(tlbimiss):
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andi. 3,1,8 /* check G-bit */
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bne 4f /* if guarded, take ISI */
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mtctr 0 /* restore counter */
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mfspr 0,IMISS /* get the miss address for the tlbli */
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mfspr 0,SPR_IMISS /* get the miss address for the tlbli */
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mfsrr1 3 /* get the saved cr0 bits */
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mtcrf 0x80,3 /* and restore */
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ori 1,1,0x100 /* set the reference bit */
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mtspr RPA,1 /* set the pte */
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mtspr SPR_RPA,1 /* set the pte */
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srwi 1,1,8 /* get byte 7 of pte */
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tlbli 0 /* load the itlb */
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stb 1,6(2) /* update page table */
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@ -286,7 +279,7 @@ _C_LABEL(tlbimiss):
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3: /* not found in pteg */
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andi. 1,3,0x40 /* have we already done second hash? */
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bne 5f
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mfspr 2,HASH2 /* get the second pointer */
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mfspr 2,SPR_HASH2 /* get the second pointer */
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ori 3,3,0x40 /* change the compare value */
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li 1,8
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addi 2,2,-8 /* predec pointer */
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@ -313,10 +306,10 @@ _C_LABEL(tlbimsize) = .-_C_LABEL(tlbimiss)
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.globl _C_LABEL(tlbdlmiss),_C_LABEL(tlbdlmsize)
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_C_LABEL(tlbdlmiss):
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mfspr 2,HASH1 /* get first pointer */
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mfspr 2,SPR_HASH1 /* get first pointer */
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li 1,8
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mfctr 0 /* save counter */
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mfspr 3,DCMP /* get first compare value */
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mfspr 3,SPR_DCMP /* get first compare value */
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addi 2,2,-8 /* predec pointer */
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1:
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mtctr 1 /* load counter */
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@ -327,11 +320,11 @@ _C_LABEL(tlbdlmiss):
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bne 3f /* not found */
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lwz 1,4(2) /* load tlb entry lower word */
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mtctr 0 /* restore counter */
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mfspr 0,DMISS /* get the miss address for the tlbld */
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mfspr 0,SPR_DMISS /* get the miss address for the tlbld */
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mfsrr1 3 /* get the saved cr0 bits */
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mtcrf 0x80,3 /* and restore */
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ori 1,1,0x100 /* set the reference bit */
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mtspr RPA,1 /* set the pte */
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mtspr SPR_RPA,1 /* set the pte */
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srwi 1,1,8 /* get byte 7 of pte */
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tlbld 0 /* load the dtlb */
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stb 1,6(2) /* update page table */
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@ -340,7 +333,7 @@ _C_LABEL(tlbdlmiss):
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3: /* not found in pteg */
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andi. 1,3,0x40 /* have we already done second hash? */
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bne 5f
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mfspr 2,HASH2 /* get the second pointer */
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mfspr 2,SPR_HASH2 /* get the second pointer */
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ori 3,3,0x40 /* change the compare value */
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li 1,8
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addi 2,2,-8 /* predec pointer */
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@ -352,7 +345,7 @@ _C_LABEL(tlbdlmiss):
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andi. 2,3,0xffff /* clean upper srr1 */
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mtsrr1 2
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mtdsisr 1 /* load the dsisr */
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mfspr 1,DMISS /* get the miss address */
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mfspr 1,SPR_DMISS /* get the miss address */
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mtdar 1 /* put in dar */
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mfmsr 0
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xoris 0,0,0x20000@h /* flip the msr<tgpr> bit */
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@ -364,10 +357,10 @@ _C_LABEL(tlbdlmsize) = .-_C_LABEL(tlbdlmiss)
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.globl _C_LABEL(tlbdsmiss),_C_LABEL(tlbdsmsize)
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_C_LABEL(tlbdsmiss):
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mfspr 2,HASH1 /* get first pointer */
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mfspr 2,SPR_HASH1 /* get first pointer */
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li 1,8
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mfctr 0 /* save counter */
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mfspr 3,DCMP /* get first compare value */
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mfspr 3,SPR_DCMP /* get first compare value */
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addi 2,2,-8 /* predec pointer */
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1:
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mtctr 1 /* load counter */
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@ -381,17 +374,17 @@ _C_LABEL(tlbdsmiss):
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beq 4f
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5:
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mtctr 0 /* restore counter */
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mfspr 0,DMISS /* get the miss address for the tlbld */
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mfspr 0,SPR_DMISS /* get the miss address for the tlbld */
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mfsrr1 3 /* get the saved cr0 bits */
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mtcrf 0x80,3 /* and restore */
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mtspr RPA,1 /* set the pte */
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mtspr SPR_RPA,1 /* set the pte */
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tlbld 0 /* load the dtlb */
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rfi
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3: /* not found in pteg */
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andi. 1,3,0x40 /* have we already done second hash? */
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bne 5f
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mfspr 2,HASH2 /* get the second pointer */
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mfspr 2,SPR_HASH2 /* get the second pointer */
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ori 3,3,0x40 /* change the compare value */
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li 1,8
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addi 2,2,-8 /* predec pointer */
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@ -407,7 +400,7 @@ _C_LABEL(tlbdsmiss):
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on store */
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b 1f
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7: /* found, PP=1x */
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mfspr 3,DMISS /* get the miss address */
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mfspr 3,SPR_DMISS /* get the miss address */
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mfsrin 1,3 /* get the segment register */
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mfsrr1 3
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rlwinm 3,3,18,31,31 /* get PR-bit */
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@ -427,7 +420,7 @@ _C_LABEL(tlbdsmiss):
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andi. 2,3,0xffff /* clean upper srr1 */
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mtsrr1 2
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mtdsisr 1 /* load the dsisr */
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mfspr 1,DMISS /* get the miss address */
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mfspr 1,SPR_DMISS /* get the miss address */
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mtdar 1 /* put in dar */
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mfmsr 0
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xoris 0,0,0x20000@h /* flip the msr<tgpr> bit */
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@ -1,4 +1,4 @@
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/* $NetBSD: trap_subr_mp.S,v 1.3 2001/06/15 08:09:33 matt Exp $ */
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/* $NetBSD: trap_subr_mp.S,v 1.4 2001/06/23 02:36:15 matt Exp $ */
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/*
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* Copyright (C) 1995, 1996 Wolfgang Solfrank.
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@ -226,20 +226,12 @@ _C_LABEL(decrsize) = .-_C_LABEL(decrint)
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* (Code essentially from the 603e User Manual, Chapter 5, but
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* corrected a lot.)
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*/
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#define DMISS 976
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#define DCMP 977
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#define HASH1 978
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#define HASH2 979
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#define IMISS 980
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#define ICMP 981
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#define RPA 982
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.globl _C_LABEL(tlbimiss),_C_LABEL(tlbimsize)
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_C_LABEL(tlbimiss):
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mfspr 2,HASH1 /* get first pointer */
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mfspr 2,SPR_HASH1 /* get first pointer */
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li 1,8
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mfctr 0 /* save counter */
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mfspr 3,ICMP /* get first compare value */
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mfspr 3,SPR_ICMP /* get first compare value */
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addi 2,2,-8 /* predec pointer */
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1:
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mtctr 1 /* load counter */
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@ -252,11 +244,11 @@ _C_LABEL(tlbimiss):
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andi. 3,1,8 /* check G-bit */
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bne 4f /* if guarded, take ISI */
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mtctr 0 /* restore counter */
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mfspr 0,IMISS /* get the miss address for the tlbli */
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mfspr 0,SPR_IMISS /* get the miss address for the tlbli */
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mfsrr1 3 /* get the saved cr0 bits */
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mtcrf 0x80,3 /* and restore */
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ori 1,1,0x100 /* set the reference bit */
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mtspr RPA,1 /* set the pte */
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mtspr SPR_RPA,1 /* set the pte */
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srwi 1,1,8 /* get byte 7 of pte */
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tlbli 0 /* load the itlb */
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stb 1,6(2) /* update page table */
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@ -265,7 +257,7 @@ _C_LABEL(tlbimiss):
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3: /* not found in pteg */
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andi. 1,3,0x40 /* have we already done second hash? */
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bne 5f
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mfspr 2,HASH2 /* get the second pointer */
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mfspr 2,SPR_HASH2 /* get the second pointer */
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ori 3,3,0x40 /* change the compare value */
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li 1,8
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addi 2,2,-8 /* predec pointer */
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@ -292,10 +284,10 @@ _C_LABEL(tlbimsize) = .-_C_LABEL(tlbimiss)
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.globl _C_LABEL(tlbdlmiss),_C_LABEL(tlbdlmsize)
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_C_LABEL(tlbdlmiss):
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mfspr 2,HASH1 /* get first pointer */
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mfspr 2,SPR_HASH1 /* get first pointer */
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li 1,8
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mfctr 0 /* save counter */
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mfspr 3,DCMP /* get first compare value */
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mfspr 3,SPR_DCMP /* get first compare value */
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addi 2,2,-8 /* predec pointer */
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1:
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mtctr 1 /* load counter */
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@ -306,11 +298,11 @@ _C_LABEL(tlbdlmiss):
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bne 3f /* not found */
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lwz 1,4(2) /* load tlb entry lower word */
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mtctr 0 /* restore counter */
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mfspr 0,DMISS /* get the miss address for the tlbld */
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mfspr 0,SPR_DMISS /* get the miss address for the tlbld */
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mfsrr1 3 /* get the saved cr0 bits */
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mtcrf 0x80,3 /* and restore */
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ori 1,1,0x100 /* set the reference bit */
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mtspr RPA,1 /* set the pte */
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mtspr SPR_RPA,1 /* set the pte */
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srwi 1,1,8 /* get byte 7 of pte */
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tlbld 0 /* load the dtlb */
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stb 1,6(2) /* update page table */
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@ -319,7 +311,7 @@ _C_LABEL(tlbdlmiss):
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3: /* not found in pteg */
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andi. 1,3,0x40 /* have we already done second hash? */
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bne 5f
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mfspr 2,HASH2 /* get the second pointer */
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mfspr 2,SPR_HASH2 /* get the second pointer */
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ori 3,3,0x40 /* change the compare value */
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li 1,8
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addi 2,2,-8 /* predec pointer */
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@ -331,7 +323,7 @@ _C_LABEL(tlbdlmiss):
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andi. 2,3,0xffff /* clean upper srr1 */
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mtsrr1 2
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mtdsisr 1 /* load the dsisr */
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mfspr 1,DMISS /* get the miss address */
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mfspr 1,SPR_DMISS /* get the miss address */
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mtdar 1 /* put in dar */
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mfmsr 0
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xoris 0,0,0x20000@h /* flip the msr<tgpr> bit */
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@ -343,10 +335,10 @@ _C_LABEL(tlbdlmsize) = .-_C_LABEL(tlbdlmiss)
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.globl _C_LABEL(tlbdsmiss),_C_LABEL(tlbdsmsize)
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_C_LABEL(tlbdsmiss):
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mfspr 2,HASH1 /* get first pointer */
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mfspr 2,SPR_HASH1 /* get first pointer */
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li 1,8
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mfctr 0 /* save counter */
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mfspr 3,DCMP /* get first compare value */
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mfspr 3,SPR_DCMP /* get first compare value */
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addi 2,2,-8 /* predec pointer */
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1:
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mtctr 1 /* load counter */
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@ -360,17 +352,17 @@ _C_LABEL(tlbdsmiss):
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beq 4f
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5:
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mtctr 0 /* restore counter */
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mfspr 0,DMISS /* get the miss address for the tlbld */
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mfspr 0,SPR_DMISS /* get the miss address for the tlbld */
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mfsrr1 3 /* get the saved cr0 bits */
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mtcrf 0x80,3 /* and restore */
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mtspr RPA,1 /* set the pte */
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mtspr SPR_RPA,1 /* set the pte */
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tlbld 0 /* load the dtlb */
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rfi
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3: /* not found in pteg */
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andi. 1,3,0x40 /* have we already done second hash? */
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bne 5f
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mfspr 2,HASH2 /* get the second pointer */
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mfspr 2,SPR_HASH2 /* get the second pointer */
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ori 3,3,0x40 /* change the compare value */
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li 1,8
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addi 2,2,-8 /* predec pointer */
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@ -386,7 +378,7 @@ _C_LABEL(tlbdsmiss):
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on store */
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b 1f
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7: /* found, PP=1x */
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mfspr 3,DMISS /* get the miss address */
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mfspr 3,SPR_DMISS /* get the miss address */
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mfsrin 1,3 /* get the segment register */
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mfsrr1 3
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rlwinm 3,3,18,31,31 /* get PR-bit */
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@ -406,7 +398,7 @@ _C_LABEL(tlbdsmiss):
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andi. 2,3,0xffff /* clean upper srr1 */
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mtsrr1 2
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mtdsisr 1 /* load the dsisr */
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mfspr 1,DMISS /* get the miss address */
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mfspr 1,SPR_DMISS /* get the miss address */
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mtdar 1 /* put in dar */
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mfmsr 0
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xoris 0,0,0x20000@h /* flip the msr<tgpr> bit */
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