1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifdef CONFIG_KGDB
3 .globl arch_kgdb_breakpoint
4 .type arch_kgdb_breakpoint,#
5 arch_kgdb_breakpoint:
6 ta 0x72
7 retl
8 nop
9 .size arch_kgdb_breakpoint,.
10 #endif
11
12 .type __do_privact,#function
13 __do_privact:
14 mov TLB_SFSR, %g3
15 stxa %g0, [%g3] ASI_DMMU
16 membar #Sync
17 sethi %hi(109f), %g7
18 ba,pt %xcc, etrap
19 109: or %g7, %lo(109b), %g7
20 call do_privact
21 add %sp, PTREGS_OFF, %o0
22 ba,a,pt %xcc, rtrap
23 .size __do_privact,.-__do_pr
24
25 .type do_mna,#function
26 do_mna:
27 rdpr %tl, %g3
28 cmp %g3, 1
29
30 /* Setup %g4/%g5 now as they are used
31 * winfixup code.
32 */
33 mov TLB_SFSR, %g3
34 mov DMMU_SFAR, %g4
35 ldxa [%g4] ASI_DMMU, %g4
36 ldxa [%g3] ASI_DMMU, %g5
37 stxa %g0, [%g3] ASI_DMMU
38 membar #Sync
39 bgu,pn %icc, winfix_mna
40 rdpr %tpc, %g3
41
42 1: sethi %hi(109f), %g7
43 ba,pt %xcc, etrap
44 109: or %g7, %lo(109b), %g7
45 mov %l4, %o1
46 mov %l5, %o2
47 call mem_address_unaligned
48 add %sp, PTREGS_OFF, %o0
49 ba,a,pt %xcc, rtrap
50 .size do_mna,.-do_mna
51
52 .type do_lddfmna,#function
53 do_lddfmna:
54 sethi %hi(109f), %g7
55 mov TLB_SFSR, %g4
56 ldxa [%g4] ASI_DMMU, %g5
57 stxa %g0, [%g4] ASI_DMMU
58 membar #Sync
59 mov DMMU_SFAR, %g4
60 ldxa [%g4] ASI_DMMU, %g4
61 ba,pt %xcc, etrap
62 109: or %g7, %lo(109b), %g7
63 mov %l4, %o1
64 mov %l5, %o2
65 call handle_lddfmna
66 add %sp, PTREGS_OFF, %o0
67 ba,a,pt %xcc, rtrap
68 .size do_lddfmna,.-do_lddfmn
69
70 .type do_stdfmna,#function
71 do_stdfmna:
72 sethi %hi(109f), %g7
73 mov TLB_SFSR, %g4
74 ldxa [%g4] ASI_DMMU, %g5
75 stxa %g0, [%g4] ASI_DMMU
76 membar #Sync
77 mov DMMU_SFAR, %g4
78 ldxa [%g4] ASI_DMMU, %g4
79 ba,pt %xcc, etrap
80 109: or %g7, %lo(109b), %g7
81 mov %l4, %o1
82 mov %l5, %o2
83 call handle_stdfmna
84 add %sp, PTREGS_OFF, %o0
85 ba,a,pt %xcc, rtrap
86 nop
87 .size do_stdfmna,.-do_stdfmn
88
89 .type breakpoint_trap,#funct
90 breakpoint_trap:
91 call sparc_breakpoint
92 add %sp, PTREGS_OFF, %o0
93 ba,pt %xcc, rtrap
94 nop
95 .size breakpoint_trap,.-brea
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