patch-2.1.115 linux/arch/sparc64/kernel/itlb_miss.S
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- Lines: 50
- Date:
Wed Dec 31 16:00:00 1969
- Orig file:
v2.1.114/linux/arch/sparc64/kernel/itlb_miss.S
- Orig date:
Thu Apr 23 20:21:31 1998
diff -u --recursive --new-file v2.1.114/linux/arch/sparc64/kernel/itlb_miss.S linux/arch/sparc64/kernel/itlb_miss.S
@@ -1,49 +0,0 @@
-/* $Id: itlb_miss.S,v 1.12 1998/01/14 17:14:47 jj Exp $
- * itlb_miss.S: Instruction TLB miss code, this is included directly
- * into the trap table.
- *
- * Copyright (C) 1996,1997 David S. Miller (davem@caip.rutgers.edu)
- * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
- */
-
-/* Gratuitous comment. */
-
- /* ICACHE line 1 */
- /*0x00*/ ldxa [%g0] ASI_IMMU, %g1 ! Get TAG_TARGET
- /*0x04*/ srlx %g1, 10, %g3 ! Position PGD offset
- /*0x08*/ andcc %g1, %g2, %g0 ! Test CONTEXT bits
- /*0x0c*/ and %g3, 0xffc, %g3 ! Mask PGD offset
- /*0x10*/ and %g1, 0xffe, %g4 ! Mask PMD offset
- /*0x14*/ ldxa [%g0] ASI_IMMU_TSB_8KB_PTR, %g1 ! For PTE offset
- /*0x18*/ be,pn %xcc, 3f ! Context 0 == kernel
- /*0x1c*/ add %g4, %g4, %g4 ! Position PMD offset
-
- /* ICACHE line 2 */
- /*0x20*/ lduwa [%g7 + %g3] ASI_PHYS_USE_EC, %g5 ! Load user PGD
- /*0x24*/ srlx %g1, 1, %g1 ! PTE offset
- /*0x28*/ lduwa [%g5 + %g4] ASI_PHYS_USE_EC, %g3 ! Load PMD
- /*0x2c*/ ldxa [%g3 + %g1] ASI_PHYS_USE_EC, %g5 ! Load PTE
- /*0x30*/ brgez,pn %g5, sparc64_itlb_refbit_catch ! Valid set?
- /*0x34*/ nop ! delay
- /*0x38*/ stxa %g5, [%g0] ASI_ITLB_DATA_IN ! TLB load
- /*0x3c*/ retry ! Trap return
-
-3: /* ICACHE line 3 */
- /*0x40*/ lduwa [%g6 + %g3] ASI_PHYS_USE_EC, %g5 ! Load kern PGD
- /*0x44*/ srlx %g1, 1, %g1 ! PTE offset
- /*0x48*/ lduwa [%g5 + %g4] ASI_PHYS_USE_EC, %g3 ! Load PMD
- /*0x4c*/ ldxa [%g3 + %g1] ASI_PHYS_USE_EC, %g5 ! Load PTE
- /*0x50*/ brgez,pn %g5, sparc64_itlb_refbit_catch ! Valid set?
- /*0x54*/ nop ! delay
- /*0x58*/ stxa %g5, [%g0] ASI_ITLB_DATA_IN ! TLB load
- /*0x5c*/ retry ! Trap return
-
- /* ICACHE line 4 */
- /*0x60*/ nop
- /*0x64*/ nop
- /*0x68*/ nop
- /*0x6c*/ nop
- /*0x70*/ nop
- /*0x74*/ nop
- /*0x78*/ nop
- /*0x7c*/ nop
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