aboutsummaryrefslogtreecommitdiff
path: root/arch/sparc64/kernel/winfixup.S
diff options
context:
space:
mode:
authorMike Travis <travis@sgi.com>2008-12-31 17:34:16 -0800
committerIngo Molnar <mingo@elte.hu>2009-01-03 18:53:31 +0100
commit7eb19553369c46cc1fa64caf120cbcab1b597f7c (patch)
treeef1a3beae706b9497c845d0a2557ceb4d2754998 /arch/sparc64/kernel/winfixup.S
parent6092848a2a23b660150a38bc06f59d75838d70c8 (diff)
parent8c384cdee3e04d6194a2c2b192b624754f990835 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask into merge-rr-cpumask
Conflicts: arch/x86/kernel/io_apic.c kernel/rcuclassic.c kernel/sched.c kernel/time/tick-sched.c Signed-off-by: Mike Travis <travis@sgi.com> [ mingo@elte.hu: backmerged typo fix for io_apic.c ] Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/sparc64/kernel/winfixup.S')
-rw-r--r--arch/sparc64/kernel/winfixup.S156
1 files changed, 0 insertions, 156 deletions
diff --git a/arch/sparc64/kernel/winfixup.S b/arch/sparc64/kernel/winfixup.S
deleted file mode 100644
index a6b0863c27d..00000000000
--- a/arch/sparc64/kernel/winfixup.S
+++ /dev/null
@@ -1,156 +0,0 @@
-/* winfixup.S: Handle cases where user stack pointer is found to be bogus.
- *
- * Copyright (C) 1997, 2006 David S. Miller (davem@davemloft.net)
- */
-
-#include <asm/asi.h>
-#include <asm/head.h>
-#include <asm/page.h>
-#include <asm/ptrace.h>
-#include <asm/processor.h>
-#include <asm/spitfire.h>
-#include <asm/thread_info.h>
-
- .text
-
- /* It used to be the case that these register window fault
- * handlers could run via the save and restore instructions
- * done by the trap entry and exit code. They now do the
- * window spill/fill by hand, so that case no longer can occur.
- */
-
- .align 32
-fill_fixup:
- TRAP_LOAD_THREAD_REG(%g6, %g1)
- rdpr %tstate, %g1
- and %g1, TSTATE_CWP, %g1
- or %g4, FAULT_CODE_WINFIXUP, %g4
- stb %g4, [%g6 + TI_FAULT_CODE]
- stx %g5, [%g6 + TI_FAULT_ADDR]
- wrpr %g1, %cwp
- ba,pt %xcc, etrap
- rd %pc, %g7
- call do_sparc64_fault
- add %sp, PTREGS_OFF, %o0
- ba,pt %xcc, rtrap
- nop
-
- /* Be very careful about usage of the trap globals here.
- * You cannot touch %g5 as that has the fault information.
- */
-spill_fixup:
-spill_fixup_mna:
-spill_fixup_dax:
- TRAP_LOAD_THREAD_REG(%g6, %g1)
- ldx [%g6 + TI_FLAGS], %g1
- andcc %g1, _TIF_32BIT, %g0
- ldub [%g6 + TI_WSAVED], %g1
- sll %g1, 3, %g3
- add %g6, %g3, %g3
- stx %sp, [%g3 + TI_RWIN_SPTRS]
- sll %g1, 7, %g3
- bne,pt %xcc, 1f
- add %g6, %g3, %g3
- stx %l0, [%g3 + TI_REG_WINDOW + 0x00]
- stx %l1, [%g3 + TI_REG_WINDOW + 0x08]
- stx %l2, [%g3 + TI_REG_WINDOW + 0x10]
- stx %l3, [%g3 + TI_REG_WINDOW + 0x18]
- stx %l4, [%g3 + TI_REG_WINDOW + 0x20]
- stx %l5, [%g3 + TI_REG_WINDOW + 0x28]
- stx %l6, [%g3 + TI_REG_WINDOW + 0x30]
- stx %l7, [%g3 + TI_REG_WINDOW + 0x38]
- stx %i0, [%g3 + TI_REG_WINDOW + 0x40]
- stx %i1, [%g3 + TI_REG_WINDOW + 0x48]
- stx %i2, [%g3 + TI_REG_WINDOW + 0x50]
- stx %i3, [%g3 + TI_REG_WINDOW + 0x58]
- stx %i4, [%g3 + TI_REG_WINDOW + 0x60]
- stx %i5, [%g3 + TI_REG_WINDOW + 0x68]
- stx %i6, [%g3 + TI_REG_WINDOW + 0x70]
- ba,pt %xcc, 2f
- stx %i7, [%g3 + TI_REG_WINDOW + 0x78]
-1: stw %l0, [%g3 + TI_REG_WINDOW + 0x00]
- stw %l1, [%g3 + TI_REG_WINDOW + 0x04]
- stw %l2, [%g3 + TI_REG_WINDOW + 0x08]
- stw %l3, [%g3 + TI_REG_WINDOW + 0x0c]
- stw %l4, [%g3 + TI_REG_WINDOW + 0x10]
- stw %l5, [%g3 + TI_REG_WINDOW + 0x14]
- stw %l6, [%g3 + TI_REG_WINDOW + 0x18]
- stw %l7, [%g3 + TI_REG_WINDOW + 0x1c]
- stw %i0, [%g3 + TI_REG_WINDOW + 0x20]
- stw %i1, [%g3 + TI_REG_WINDOW + 0x24]
- stw %i2, [%g3 + TI_REG_WINDOW + 0x28]
- stw %i3, [%g3 + TI_REG_WINDOW + 0x2c]
- stw %i4, [%g3 + TI_REG_WINDOW + 0x30]
- stw %i5, [%g3 + TI_REG_WINDOW + 0x34]
- stw %i6, [%g3 + TI_REG_WINDOW + 0x38]
- stw %i7, [%g3 + TI_REG_WINDOW + 0x3c]
-2: add %g1, 1, %g1
- stb %g1, [%g6 + TI_WSAVED]
- rdpr %tstate, %g1
- andcc %g1, TSTATE_PRIV, %g0
- saved
- be,pn %xcc, 1f
- and %g1, TSTATE_CWP, %g1
- retry
-1: mov FAULT_CODE_WRITE | FAULT_CODE_DTLB | FAULT_CODE_WINFIXUP, %g4
- stb %g4, [%g6 + TI_FAULT_CODE]
- stx %g5, [%g6 + TI_FAULT_ADDR]
- wrpr %g1, %cwp
- ba,pt %xcc, etrap
- rd %pc, %g7
- call do_sparc64_fault
- add %sp, PTREGS_OFF, %o0
- ba,a,pt %xcc, rtrap
-
-winfix_mna:
- andn %g3, 0x7f, %g3
- add %g3, 0x78, %g3
- wrpr %g3, %tnpc
- done
-
-fill_fixup_mna:
- rdpr %tstate, %g1
- and %g1, TSTATE_CWP, %g1
- wrpr %g1, %cwp
- ba,pt %xcc, etrap
- rd %pc, %g7
- sethi %hi(tlb_type), %g1
- lduw [%g1 + %lo(tlb_type)], %g1
- cmp %g1, 3
- bne,pt %icc, 1f
- add %sp, PTREGS_OFF, %o0
- mov %l4, %o2
- call sun4v_do_mna
- mov %l5, %o1
- ba,a,pt %xcc, rtrap
-1: mov %l4, %o1
- mov %l5, %o2
- call mem_address_unaligned
- nop
- ba,a,pt %xcc, rtrap
-
-winfix_dax:
- andn %g3, 0x7f, %g3
- add %g3, 0x74, %g3
- wrpr %g3, %tnpc
- done
-
-fill_fixup_dax:
- rdpr %tstate, %g1
- and %g1, TSTATE_CWP, %g1
- wrpr %g1, %cwp
- ba,pt %xcc, etrap
- rd %pc, %g7
- sethi %hi(tlb_type), %g1
- mov %l4, %o1
- lduw [%g1 + %lo(tlb_type)], %g1
- mov %l5, %o2
- cmp %g1, 3
- bne,pt %icc, 1f
- add %sp, PTREGS_OFF, %o0
- call sun4v_data_access_exception
- nop
- ba,a,pt %xcc, rtrap
-1: call spitfire_data_access_exception
- nop
- ba,a,pt %xcc, rtrap