1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * Copyright IBM Corp 2000, 2011
4 * Author(s): Holger Smolinski <Holger.Smoli
5 * Denis Joseph Barrow,
6 */
7
8 #include <linux/linkage.h>
9 #include <asm/asm-offsets.h>
10 #include <asm/nospec-insn.h>
11 #include <asm/sigp.h>
12 #include <asm/lowcore.h>
13
14 GEN_BR_THUNK %r9
15
16 #
17 # Issue "store status" for the current CPU to
18 # and call passed function afterwards
19 #
20 # r2 = Function to be called after store statu
21 # r3 = Parameter for function
22 #
23 SYM_CODE_START(store_status)
24 STMG_LC %r0,%r15,__LC_GPREGS_SAVE_AREA
25 /* General purpose registers */
26 GET_LC %r13
27 /* Control registers */
28 stctg %c0,%c15,__LC_CREGS_SAVE_AREA(
29 /* Access registers */
30 stamy %a0,%a15,__LC_AREGS_SAVE_AREA(
31 /* Floating point registers */
32 lay %r1,__LC_FPREGS_SAVE_AREA(%r13
33 std %f0, 0x00(%r1)
34 std %f1, 0x08(%r1)
35 std %f2, 0x10(%r1)
36 std %f3, 0x18(%r1)
37 std %f4, 0x20(%r1)
38 std %f5, 0x28(%r1)
39 std %f6, 0x30(%r1)
40 std %f7, 0x38(%r1)
41 std %f8, 0x40(%r1)
42 std %f9, 0x48(%r1)
43 std %f10,0x50(%r1)
44 std %f11,0x58(%r1)
45 std %f12,0x60(%r1)
46 std %f13,0x68(%r1)
47 std %f14,0x70(%r1)
48 std %f15,0x78(%r1)
49 /* Floating point control register */
50 lay %r1,__LC_FP_CREG_SAVE_AREA(%r1
51 stfpc 0(%r1)
52 /* CPU timer */
53 lay %r1,__LC_CPU_TIMER_SAVE_AREA(%
54 stpt 0(%r1)
55 /* Store prefix register */
56 lay %r1,__LC_PREFIX_SAVE_AREA(%r13
57 stpx 0(%r1)
58 /* Clock comparator - seven bytes */
59 larl %r4,clkcmp
60 stckc 0(%r4)
61 lay %r1,__LC_CLOCK_COMP_SAVE_AREA(
62 mvc 1(7,%r1),1(%r4)
63 /* Program status word */
64 lay %r1,__LC_PSW_SAVE_AREA(%r13)
65 epsw %r4,%r5
66 st %r4,0(%r1)
67 st %r5,4(%r1)
68 stg %r2,8(%r1)
69 lgr %r9,%r2
70 lgr %r2,%r3
71 BR_EX %r9
72 SYM_CODE_END(store_status)
73
74 .section .bss
75 .balign 8
76 SYM_DATA_LOCAL(clkcmp, .quad 0x00000000000000
77 .previous
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