| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | * This file contains the generic code to perform a call to the |
| 3 | * pSeries LPAR hypervisor. |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4 | * |
| 5 | * This program is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU General Public License |
| 7 | * as published by the Free Software Foundation; either version |
| 8 | * 2 of the License, or (at your option) any later version. |
| 9 | */ |
| 10 | #include <asm/hvcall.h> |
| 11 | #include <asm/processor.h> |
| 12 | #include <asm/ppc_asm.h> |
| 13 | |
| 14 | #define STK_PARM(i) (48 + ((i)-3)*8) |
| 15 | |
| 16 | .text |
| 17 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | _GLOBAL(plpar_hcall_norets) |
| Anton Blanchard | eeb24de | 2005-05-01 08:58:46 -0700 | [diff] [blame] | 19 | HMT_MEDIUM |
| 20 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 21 | mfcr r0 |
| 22 | stw r0,8(r1) |
| 23 | |
| 24 | HVSC /* invoke the hypervisor */ |
| 25 | |
| 26 | lwz r0,8(r1) |
| 27 | mtcrf 0xff,r0 |
| 28 | blr /* return r3 = status */ |
| 29 | |
| Anton Blanchard | b9377ff | 2006-07-19 08:01:28 +1000 | [diff] [blame^] | 30 | _GLOBAL(plpar_hcall) |
| Anton Blanchard | eeb24de | 2005-05-01 08:58:46 -0700 | [diff] [blame] | 31 | HMT_MEDIUM |
| 32 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | mfcr r0 |
| 34 | stw r0,8(r1) |
| 35 | |
| Anton Blanchard | b9377ff | 2006-07-19 08:01:28 +1000 | [diff] [blame^] | 36 | std r4,STK_PARM(r4)(r1) /* Save ret buffer */ |
| 37 | |
| 38 | mr r4,r5 |
| 39 | mr r5,r6 |
| 40 | mr r6,r7 |
| 41 | mr r7,r8 |
| 42 | mr r8,r9 |
| 43 | mr r9,r10 |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | |
| 45 | HVSC /* invoke the hypervisor */ |
| 46 | |
| Anton Blanchard | b9377ff | 2006-07-19 08:01:28 +1000 | [diff] [blame^] | 47 | ld r12,STK_PARM(r4)(r1) |
| 48 | std r4, 0(r12) |
| 49 | std r5, 8(r12) |
| 50 | std r6, 16(r12) |
| 51 | std r7, 24(r12) |
| Heiko J Schick | b13a96cf | 2006-03-30 22:47:14 +0200 | [diff] [blame] | 52 | |
| 53 | lwz r0,8(r1) |
| Heiko J Schick | b13a96cf | 2006-03-30 22:47:14 +0200 | [diff] [blame] | 54 | mtcrf 0xff,r0 |
| 55 | |
| 56 | blr /* return r3 = status */ |
| 57 | |
| Anton Blanchard | b9377ff | 2006-07-19 08:01:28 +1000 | [diff] [blame^] | 58 | _GLOBAL(plpar_hcall9) |
| Heiko J Schick | b13a96cf | 2006-03-30 22:47:14 +0200 | [diff] [blame] | 59 | HMT_MEDIUM |
| 60 | |
| 61 | mfcr r0 |
| 62 | stw r0,8(r1) |
| 63 | |
| Anton Blanchard | b9377ff | 2006-07-19 08:01:28 +1000 | [diff] [blame^] | 64 | std r4,STK_PARM(r4)(r1) /* Save ret buffer */ |
| 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 */ |
| Heiko J Schick | b13a96cf | 2006-03-30 22:47:14 +0200 | [diff] [blame] | 75 | |
| 76 | HVSC /* invoke the hypervisor */ |
| 77 | |
| Anton Blanchard | b9377ff | 2006-07-19 08:01:28 +1000 | [diff] [blame^] | 78 | ld r12,STK_PARM(r4)(r1) |
| 79 | std r4, 0(r12) |
| 80 | std r5, 8(r12) |
| 81 | std r6, 16(r12) |
| 82 | std r7, 24(r12) |
| 83 | std r8, 32(r12) |
| 84 | std r9, 40(r12) |
| 85 | std r10,48(r12) |
| 86 | std r11,56(r12) |
| 87 | std r12,64(r12) |
| Heiko J Schick | b13a96cf | 2006-03-30 22:47:14 +0200 | [diff] [blame] | 88 | |
| 89 | lwz r0,8(r1) |
| 90 | mtcrf 0xff,r0 |
| 91 | |
| 92 | blr /* return r3 = status */ |