xref: /openbmc/u-boot/post/lib_powerpc/asm.S (revision 20c700f8)
1/*
2 *  Copyright (C) 2002 Wolfgang Denk <wd@denx.de>
3 *
4 * SPDX-License-Identifier:	GPL-2.0+
5 */
6
7#include <config.h>
8
9#include <post.h>
10#include <ppc_asm.tmpl>
11#include <ppc_defs.h>
12#include <asm/cache.h>
13
14#if CONFIG_POST & CONFIG_SYS_POST_CPU
15
16/* void cpu_post_exec_02 (ulong *code, ulong op1, ulong op2); */
17	.global	cpu_post_exec_02
18cpu_post_exec_02:
19	isync
20	mflr	r0
21	stwu	r0, -4(r1)
22
23	subi	r1, r1, 104
24	stmw	r6, 0(r1)
25
26	mtlr	r3
27	mr	r3, r4
28	mr	r4, r5
29	blrl
30
31	lmw	r6, 0(r1)
32	addi	r1, r1, 104
33
34	lwz	r0, 0(r1)
35	addi	r1, r1, 4
36	mtlr	r0
37	blr
38
39/* void cpu_post_exec_04 (ulong *code, ulong op1, ulong op2, ulong op3, ulong op4); */
40	.global	cpu_post_exec_04
41cpu_post_exec_04:
42	isync
43	mflr	r0
44	stwu	r0, -4(r1)
45
46	subi	r1, r1, 96
47	stmw	r8, 0(r1)
48
49	mtlr	r3
50	mr	r3, r4
51	mr	r4, r5
52	mr	r5, r6
53	mtxer	r7
54	blrl
55
56	lmw	r8, 0(r1)
57	addi	r1, r1, 96
58
59	lwz	r0, 0(r1)
60	addi	r1, r1, 4
61	mtlr	r0
62	blr
63
64/* void cpu_post_exec_12 (ulong *code, ulong *res, ulong op1, ulong op2); */
65	.global	cpu_post_exec_12
66cpu_post_exec_12:
67	isync
68	mflr	r0
69	stwu	r0, -4(r1)
70	stwu	r4, -4(r1)
71
72	mtlr	r3
73	mr	r3, r5
74	mr	r4, r6
75	blrl
76
77	lwz	r4, 0(r1)
78	stw	r3, 0(r4)
79
80	lwz	r0, 4(r1)
81	addi	r1, r1, 8
82	mtlr	r0
83	blr
84
85/* void cpu_post_exec_11 (ulong *code, ulong *res, ulong op1); */
86	.global	cpu_post_exec_11
87cpu_post_exec_11:
88	isync
89	mflr	r0
90	stwu	r0, -4(r1)
91	stwu	r4, -4(r1)
92
93	mtlr	r3
94	mr	r3, r5
95	blrl
96
97	lwz	r4, 0(r1)
98	stw	r3, 0(r4)
99
100	lwz	r0, 4(r1)
101	addi	r1, r1, 8
102	mtlr	r0
103	blr
104
105/* void cpu_post_exec_21 (ulong *code, ulong *cr, ulong *res, ulong op1); */
106	.global	cpu_post_exec_21
107cpu_post_exec_21:
108	isync
109	mflr	r0
110	stwu	r0, -4(r1)
111	stwu	r4, -4(r1)
112	stwu	r5, -4(r1)
113
114	li	r0, 0
115	mtxer	r0
116	lwz	r0, 0(r4)
117	mtcr	r0
118
119	mtlr	r3
120	mr	r3, r6
121	blrl
122
123	mfcr	r0
124	lwz	r4, 4(r1)
125	stw	r0, 0(r4)
126	lwz	r4, 0(r1)
127	stw	r3, 0(r4)
128
129	lwz	r0, 8(r1)
130	addi	r1, r1, 12
131	mtlr	r0
132	blr
133
134/* void cpu_post_exec_22 (ulong *code, ulong *cr, ulong *res, ulong op1,
135    ulong op2); */
136	.global	cpu_post_exec_22
137cpu_post_exec_22:
138	isync
139	mflr	r0
140	stwu	r0, -4(r1)
141	stwu	r4, -4(r1)
142	stwu	r5, -4(r1)
143
144	li	r0, 0
145	mtxer	r0
146	lwz	r0, 0(r4)
147	mtcr	r0
148
149	mtlr	r3
150	mr	r3, r6
151	mr	r4, r7
152	blrl
153
154	mfcr	r0
155	lwz	r4, 4(r1)
156	stw	r0, 0(r4)
157	lwz	r4, 0(r1)
158	stw	r3, 0(r4)
159
160	lwz	r0, 8(r1)
161	addi	r1, r1, 12
162	mtlr	r0
163	blr
164
165/* void cpu_post_exec_12w (ulong *code, ulong *op1, ulong op2, ulong op3); */
166	.global	cpu_post_exec_12w
167cpu_post_exec_12w:
168	isync
169	mflr	r0
170	stwu	r0, -4(r1)
171	stwu	r4, -4(r1)
172
173	mtlr	r3
174	lwz	r3, 0(r4)
175	mr	r4, r5
176	mr	r5, r6
177	blrl
178
179	lwz	r4, 0(r1)
180	stw	r3, 0(r4)
181
182	lwz	r0, 4(r1)
183	addi	r1, r1, 8
184	mtlr	r0
185	blr
186
187/* void cpu_post_exec_11w (ulong *code, ulong *op1, ulong op2); */
188	.global	cpu_post_exec_11w
189cpu_post_exec_11w:
190	isync
191	mflr	r0
192	stwu	r0, -4(r1)
193	stwu	r4, -4(r1)
194
195	mtlr	r3
196	lwz	r3, 0(r4)
197	mr	r4, r5
198	blrl
199
200	lwz	r4, 0(r1)
201	stw	r3, 0(r4)
202
203	lwz	r0, 4(r1)
204	addi	r1, r1, 8
205	mtlr	r0
206	blr
207
208/* void cpu_post_exec_22w (ulong *code, ulong *op1, ulong op2, ulong *op3); */
209	.global	cpu_post_exec_22w
210cpu_post_exec_22w:
211	isync
212	mflr	r0
213	stwu	r0, -4(r1)
214	stwu	r4, -4(r1)
215	stwu	r6, -4(r1)
216
217	mtlr	r3
218	lwz	r3, 0(r4)
219	mr	r4, r5
220	blrl
221
222	lwz	r4, 4(r1)
223	stw	r3, 0(r4)
224	lwz	r4, 0(r1)
225	stw	r5, 0(r4)
226
227	lwz	r0, 8(r1)
228	addi	r1, r1, 12
229	mtlr	r0
230	blr
231
232/* void cpu_post_exec_21w (ulong *code, ulong *op1, ulong *op2); */
233	.global	cpu_post_exec_21w
234cpu_post_exec_21w:
235	isync
236	mflr	r0
237	stwu	r0, -4(r1)
238	stwu	r4, -4(r1)
239	stwu	r5, -4(r1)
240
241	mtlr	r3
242	lwz	r3, 0(r4)
243	blrl
244
245	lwz	r5, 4(r1)
246	stw	r3, 0(r5)
247	lwz	r5, 0(r1)
248	stw	r4, 0(r5)
249
250	lwz	r0, 8(r1)
251	addi	r1, r1, 12
252	mtlr	r0
253	blr
254
255/* void cpu_post_exec_21x (ulong *code, ulong *op1, ulong *op2, ulong op3); */
256	.global	cpu_post_exec_21x
257cpu_post_exec_21x:
258	isync
259	mflr	r0
260	stwu	r0, -4(r1)
261	stwu	r4, -4(r1)
262	stwu	r5, -4(r1)
263
264	mtlr	r3
265	mr	r3, r6
266	blrl
267
268	lwz	r5, 4(r1)
269	stw	r3, 0(r5)
270	lwz	r5, 0(r1)
271	stw	r4, 0(r5)
272
273	lwz	r0, 8(r1)
274	addi	r1, r1, 12
275	mtlr	r0
276	blr
277
278/* void cpu_post_exec_31 (ulong *code, ulong *ctr, ulong *lr, ulong *jump,
279    ulong cr); */
280	.global	cpu_post_exec_31
281cpu_post_exec_31:
282	isync
283	mflr	r0
284	stwu	r0, -4(r1)
285	stwu	r4, -4(r1)
286	stwu	r5, -4(r1)
287	stwu	r6, -4(r1)
288
289	mtlr	r3
290	lwz	r3, 0(r4)
291	lwz	r4, 0(r5)
292	mr	r6, r7
293
294	mfcr	r7
295	blrl
296	mtcr	r7
297
298	lwz	r7, 8(r1)
299	stw	r3, 0(r7)
300	lwz	r7, 4(r1)
301	stw	r4, 0(r7)
302	lwz	r7, 0(r1)
303	stw	r5, 0(r7)
304
305	lwz	r0, 12(r1)
306	addi	r1, r1, 16
307	mtlr	r0
308	blr
309
310/* int cpu_post_complex_1_asm (int a1, int a2, int a3, int a4, int n); */
311	.global	cpu_post_complex_1_asm
312cpu_post_complex_1_asm:
313	li	r9,0
314	cmpw	r9,r7
315	bge	cpu_post_complex_1_done
316	mtctr	r7
317cpu_post_complex_1_loop:
318	mullw	r0,r3,r4
319	subf	r0,r5,r0
320	divw	r0,r0,r6
321	add	r9,r9,r0
322	bdnz	cpu_post_complex_1_loop
323cpu_post_complex_1_done:
324	mr	r3,r9
325	blr
326
327/* int cpu_post_complex_2_asm (int x, int n); */
328	.global	cpu_post_complex_2_asm
329cpu_post_complex_2_asm:
330	mr.	r0,r4
331	mtctr	r0
332	mr	r0,r3
333	li	r3,1
334	li	r4,1
335	blelr
336cpu_post_complex_2_loop:
337	mullw	r3,r3,r0
338	add	r3,r3,r4
339	bdnz	cpu_post_complex_2_loop
340blr
341
342#endif
343