mirror of https://gitee.com/openkylin/linux.git
99 lines
1.8 KiB
ArmAsm
99 lines
1.8 KiB
ArmAsm
#include <asm/thread_info.h>
|
|
#include <asm/trap_block.h>
|
|
#include <asm/spitfire.h>
|
|
#include <asm/ptrace.h>
|
|
#include <asm/head.h>
|
|
|
|
.text
|
|
.align 8
|
|
.globl user_rtt_fill_fixup_common
|
|
user_rtt_fill_fixup_common:
|
|
rdpr %cwp, %g1
|
|
add %g1, 1, %g1
|
|
wrpr %g1, 0x0, %cwp
|
|
|
|
rdpr %wstate, %g2
|
|
sll %g2, 3, %g2
|
|
wrpr %g2, 0x0, %wstate
|
|
|
|
/* We know %canrestore and %otherwin are both zero. */
|
|
|
|
sethi %hi(sparc64_kern_pri_context), %g2
|
|
ldx [%g2 + %lo(sparc64_kern_pri_context)], %g2
|
|
mov PRIMARY_CONTEXT, %g1
|
|
|
|
661: stxa %g2, [%g1] ASI_DMMU
|
|
.section .sun4v_1insn_patch, "ax"
|
|
.word 661b
|
|
stxa %g2, [%g1] ASI_MMU
|
|
.previous
|
|
|
|
sethi %hi(KERNBASE), %g1
|
|
flush %g1
|
|
|
|
mov %g4, %l4
|
|
mov %g5, %l5
|
|
brnz,pn %g3, 1f
|
|
mov %g3, %l3
|
|
|
|
or %g4, FAULT_CODE_WINFIXUP, %g4
|
|
stb %g4, [%g6 + TI_FAULT_CODE]
|
|
stx %g5, [%g6 + TI_FAULT_ADDR]
|
|
1:
|
|
mov %g6, %l1
|
|
wrpr %g0, 0x0, %tl
|
|
|
|
661: nop
|
|
.section .sun4v_1insn_patch, "ax"
|
|
.word 661b
|
|
SET_GL(0)
|
|
.previous
|
|
|
|
wrpr %g0, RTRAP_PSTATE, %pstate
|
|
|
|
mov %l1, %g6
|
|
ldx [%g6 + TI_TASK], %g4
|
|
LOAD_PER_CPU_BASE(%g5, %g6, %g1, %g2, %g3)
|
|
|
|
brnz,pn %l3, 1f
|
|
nop
|
|
|
|
call do_sparc64_fault
|
|
add %sp, PTREGS_OFF, %o0
|
|
ba,pt %xcc, rtrap
|
|
nop
|
|
|
|
1: cmp %g3, 2
|
|
bne,pn %xcc, 2f
|
|
nop
|
|
|
|
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
|
|
|
|
2: 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
|