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authorAnton Blanchard <anton@samba.org>2006-07-18 18:01:28 -0400
committerPaul Mackerras <paulus@samba.org>2006-08-01 02:19:15 -0400
commitb9377ffc3a03cde558d76349a262a1adbb6d3112 (patch)
treec61fcdb732d06c64b9c5634953e46cefdf6af846 /arch/powerpc/platforms/pseries/hvCall.S
parent57cad8084e0837e0f2c97da789ec9b3f36809be9 (diff)
[POWERPC] clean up pseries hcall interfaces
Our pseries hcall interfaces are out of control: plpar_hcall_norets plpar_hcall plpar_hcall_8arg_2ret plpar_hcall_4out plpar_hcall_7arg_7ret plpar_hcall_9arg_9ret Create 3 interfaces to cover all cases: plpar_hcall_norets: 7 arguments no returns plpar_hcall: 6 arguments 4 returns plpar_hcall9: 9 arguments 9 returns There are only 2 cases in the kernel that need plpar_hcall9, hopefully we can keep it that way. Pass in a buffer to stash return parameters so we avoid the &dummy1, &dummy2 madness. Signed-off-by: Anton Blanchard <anton@samba.org> -- Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/platforms/pseries/hvCall.S')
-rw-r--r--arch/powerpc/platforms/pseries/hvCall.S207
1 files changed, 35 insertions, 172 deletions
diff --git a/arch/powerpc/platforms/pseries/hvCall.S b/arch/powerpc/platforms/pseries/hvCall.S
index c9ff547f9d25..9a99b056bd27 100644
--- a/arch/powerpc/platforms/pseries/hvCall.S
+++ b/arch/powerpc/platforms/pseries/hvCall.S
@@ -1,7 +1,6 @@
1/* 1/*
2 * This file contains the generic code to perform a call to the 2 * This file contains the generic code to perform a call to the
3 * pSeries LPAR hypervisor. 3 * pSeries LPAR hypervisor.
4 * NOTE: this file will go away when we move to inline this work.
5 * 4 *
6 * This program is free software; you can redistribute it and/or 5 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License 6 * modify it under the terms of the GNU General Public License
@@ -16,42 +15,6 @@
16 15
17 .text 16 .text
18 17
19/* long plpar_hcall(unsigned long opcode, R3
20 unsigned long arg1, R4
21 unsigned long arg2, R5
22 unsigned long arg3, R6
23 unsigned long arg4, R7
24 unsigned long *out1, R8
25 unsigned long *out2, R9
26 unsigned long *out3); R10
27 */
28_GLOBAL(plpar_hcall)
29 HMT_MEDIUM
30
31 mfcr r0
32
33 std r8,STK_PARM(r8)(r1) /* Save out ptrs */
34 std r9,STK_PARM(r9)(r1)
35 std r10,STK_PARM(r10)(r1)
36
37 stw r0,8(r1)
38
39 HVSC /* invoke the hypervisor */
40
41 lwz r0,8(r1)
42
43 ld r8,STK_PARM(r8)(r1) /* Fetch r4-r6 ret args */
44 ld r9,STK_PARM(r9)(r1)
45 ld r10,STK_PARM(r10)(r1)
46 std r4,0(r8)
47 std r5,0(r9)
48 std r6,0(r10)
49
50 mtcrf 0xff,r0
51 blr /* return r3 = status */
52
53
54/* Simple interface with no output values (other than status) */
55_GLOBAL(plpar_hcall_norets) 18_GLOBAL(plpar_hcall_norets)
56 HMT_MEDIUM 19 HMT_MEDIUM
57 20
@@ -64,164 +27,64 @@ _GLOBAL(plpar_hcall_norets)
64 mtcrf 0xff,r0 27 mtcrf 0xff,r0
65 blr /* return r3 = status */ 28 blr /* return r3 = status */
66 29
67 30_GLOBAL(plpar_hcall)
68/* long plpar_hcall_8arg_2ret(unsigned long opcode, R3
69 unsigned long arg1, R4
70 unsigned long arg2, R5
71 unsigned long arg3, R6
72 unsigned long arg4, R7
73 unsigned long arg5, R8
74 unsigned long arg6, R9
75 unsigned long arg7, R10
76 unsigned long arg8, 112(R1)
77 unsigned long *out1); 120(R1)
78 */
79_GLOBAL(plpar_hcall_8arg_2ret)
80 HMT_MEDIUM 31 HMT_MEDIUM
81 32
82 mfcr r0 33 mfcr r0
83 ld r11,STK_PARM(r11)(r1) /* put arg8 in R11 */
84 stw r0,8(r1) 34 stw r0,8(r1)
85 35
86 HVSC /* invoke the hypervisor */ 36 std r4,STK_PARM(r4)(r1) /* Save ret buffer */
87
88 lwz r0,8(r1)
89 ld r10,STK_PARM(r12)(r1) /* Fetch r4 ret arg */
90 std r4,0(r10)
91 mtcrf 0xff,r0
92 blr /* return r3 = status */
93
94
95/* long plpar_hcall_4out(unsigned long opcode, R3
96 unsigned long arg1, R4
97 unsigned long arg2, R5
98 unsigned long arg3, R6
99 unsigned long arg4, R7
100 unsigned long *out1, R8
101 unsigned long *out2, R9
102 unsigned long *out3, R10
103 unsigned long *out4); 112(R1)
104 */
105_GLOBAL(plpar_hcall_4out)
106 HMT_MEDIUM
107
108 mfcr r0
109 stw r0,8(r1)
110 37
111 std r8,STK_PARM(r8)(r1) /* Save out ptrs */ 38 mr r4,r5
112 std r9,STK_PARM(r9)(r1) 39 mr r5,r6
113 std r10,STK_PARM(r10)(r1) 40 mr r6,r7
41 mr r7,r8
42 mr r8,r9
43 mr r9,r10
114 44
115 HVSC /* invoke the hypervisor */ 45 HVSC /* invoke the hypervisor */
116 46
117 lwz r0,8(r1) 47 ld r12,STK_PARM(r4)(r1)
118 48 std r4, 0(r12)
119 ld r8,STK_PARM(r8)(r1) /* Fetch r4-r7 ret args */ 49 std r5, 8(r12)
120 ld r9,STK_PARM(r9)(r1) 50 std r6, 16(r12)
121 ld r10,STK_PARM(r10)(r1) 51 std r7, 24(r12)
122 ld r11,STK_PARM(r11)(r1)
123 std r4,0(r8)
124 std r5,0(r9)
125 std r6,0(r10)
126 std r7,0(r11)
127
128 mtcrf 0xff,r0
129 blr /* return r3 = status */
130
131/* plpar_hcall_7arg_7ret(unsigned long opcode, R3
132 unsigned long arg1, R4
133 unsigned long arg2, R5
134 unsigned long arg3, R6
135 unsigned long arg4, R7
136 unsigned long arg5, R8
137 unsigned long arg6, R9
138 unsigned long arg7, R10
139 unsigned long *out1, 112(R1)
140 unsigned long *out2, 110(R1)
141 unsigned long *out3, 108(R1)
142 unsigned long *out4, 106(R1)
143 unsigned long *out5, 104(R1)
144 unsigned long *out6, 102(R1)
145 unsigned long *out7); 100(R1)
146*/
147_GLOBAL(plpar_hcall_7arg_7ret)
148 HMT_MEDIUM
149
150 mfcr r0
151 stw r0,8(r1)
152
153 HVSC /* invoke the hypervisor */
154 52
155 lwz r0,8(r1) 53 lwz r0,8(r1)
156
157 ld r11,STK_PARM(r11)(r1) /* Fetch r4 ret arg */
158 std r4,0(r11)
159 ld r11,STK_PARM(r12)(r1) /* Fetch r5 ret arg */
160 std r5,0(r11)
161 ld r11,STK_PARM(r13)(r1) /* Fetch r6 ret arg */
162 std r6,0(r11)
163 ld r11,STK_PARM(r14)(r1) /* Fetch r7 ret arg */
164 std r7,0(r11)
165 ld r11,STK_PARM(r15)(r1) /* Fetch r8 ret arg */
166 std r8,0(r11)
167 ld r11,STK_PARM(r16)(r1) /* Fetch r9 ret arg */
168 std r9,0(r11)
169 ld r11,STK_PARM(r17)(r1) /* Fetch r10 ret arg */
170 std r10,0(r11)
171
172 mtcrf 0xff,r0 54 mtcrf 0xff,r0
173 55
174 blr /* return r3 = status */ 56 blr /* return r3 = status */
175 57
176/* plpar_hcall_9arg_9ret(unsigned long opcode, R3 58_GLOBAL(plpar_hcall9)
177 unsigned long arg1, R4
178 unsigned long arg2, R5
179 unsigned long arg3, R6
180 unsigned long arg4, R7
181 unsigned long arg5, R8
182 unsigned long arg6, R9
183 unsigned long arg7, R10
184 unsigned long arg8, 112(R1)
185 unsigned long arg9, 110(R1)
186 unsigned long *out1, 108(R1)
187 unsigned long *out2, 106(R1)
188 unsigned long *out3, 104(R1)
189 unsigned long *out4, 102(R1)
190 unsigned long *out5, 100(R1)
191 unsigned long *out6, 98(R1)
192 unsigned long *out7); 96(R1)
193 unsigned long *out8, 94(R1)
194 unsigned long *out9, 92(R1)
195*/
196_GLOBAL(plpar_hcall_9arg_9ret)
197 HMT_MEDIUM 59 HMT_MEDIUM
198 60
199 mfcr r0 61 mfcr r0
200 stw r0,8(r1) 62 stw r0,8(r1)
201 63
202 ld r11,STK_PARM(r11)(r1) /* put arg8 in R11 */ 64 std r4,STK_PARM(r4)(r1) /* Save ret buffer */
203 ld r12,STK_PARM(r12)(r1) /* put arg9 in R12 */ 65
66 mr r4,r5
67 mr r5,r6
68 mr r6,r7
69 mr r7,r8
70 mr r8,r9
71 mr r9,r10
72 ld r10,STK_PARM(r11)(r1) /* put arg7 in R10 */
73 ld r11,STK_PARM(r12)(r1) /* put arg8 in R11 */
74 ld r12,STK_PARM(r13)(r1) /* put arg9 in R12 */
204 75
205 HVSC /* invoke the hypervisor */ 76 HVSC /* invoke the hypervisor */
206 77
207 ld r0,STK_PARM(r13)(r1) /* Fetch r4 ret arg */ 78 ld r12,STK_PARM(r4)(r1)
208 stdx r4,r0,r0 79 std r4, 0(r12)
209 ld r0,STK_PARM(r14)(r1) /* Fetch r5 ret arg */ 80 std r5, 8(r12)
210 stdx r5,r0,r0 81 std r6, 16(r12)
211 ld r0,STK_PARM(r15)(r1) /* Fetch r6 ret arg */ 82 std r7, 24(r12)
212 stdx r6,r0,r0 83 std r8, 32(r12)
213 ld r0,STK_PARM(r16)(r1) /* Fetch r7 ret arg */ 84 std r9, 40(r12)
214 stdx r7,r0,r0 85 std r10,48(r12)
215 ld r0,STK_PARM(r17)(r1) /* Fetch r8 ret arg */ 86 std r11,56(r12)
216 stdx r8,r0,r0 87 std r12,64(r12)
217 ld r0,STK_PARM(r18)(r1) /* Fetch r9 ret arg */
218 stdx r9,r0,r0
219 ld r0,STK_PARM(r19)(r1) /* Fetch r10 ret arg */
220 stdx r10,r0,r0
221 ld r0,STK_PARM(r20)(r1) /* Fetch r11 ret arg */
222 stdx r11,r0,r0
223 ld r0,STK_PARM(r21)(r1) /* Fetch r12 ret arg */
224 stdx r12,r0,r0
225 88
226 lwz r0,8(r1) 89 lwz r0,8(r1)
227 mtcrf 0xff,r0 90 mtcrf 0xff,r0
generated by cgit v1.2.2 (git 2.25.0) at 2024-09-22 21:22:56 -0400