Isaku Yamahata | e4ff5b8 | 2009-03-04 21:05:42 +0900 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp> |
| 3 | * VA Linux Systems Japan K.K. |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 18 | * |
| 19 | */ |
| 20 | |
| 21 | #include <linux/bug.h> |
Jes Sorensen | d186b86 | 2009-06-17 09:04:40 -0700 | [diff] [blame] | 22 | #include <linux/init.h> |
| 23 | #include <linux/kernel.h> |
Isaku Yamahata | e4ff5b8 | 2009-03-04 21:05:42 +0900 | [diff] [blame] | 24 | #include <asm/paravirt.h> |
| 25 | |
| 26 | #define DECLARE(name) \ |
| 27 | extern unsigned long \ |
| 28 | __ia64_native_start_gate_##name##_patchlist[]; \ |
| 29 | extern unsigned long \ |
| 30 | __ia64_native_end_gate_##name##_patchlist[] |
| 31 | |
| 32 | DECLARE(fsyscall); |
| 33 | DECLARE(brl_fsys_bubble_down); |
| 34 | DECLARE(vtop); |
| 35 | DECLARE(mckinley_e9); |
| 36 | |
| 37 | extern unsigned long __start_gate_section[]; |
| 38 | |
| 39 | #define ASSIGN(name) \ |
| 40 | .start_##name##_patchlist = \ |
| 41 | (unsigned long)__ia64_native_start_gate_##name##_patchlist, \ |
| 42 | .end_##name##_patchlist = \ |
| 43 | (unsigned long)__ia64_native_end_gate_##name##_patchlist |
| 44 | |
| 45 | struct pv_patchdata pv_patchdata __initdata = { |
| 46 | ASSIGN(fsyscall), |
| 47 | ASSIGN(brl_fsys_bubble_down), |
| 48 | ASSIGN(vtop), |
| 49 | ASSIGN(mckinley_e9), |
| 50 | |
| 51 | .gate_section = (void*)__start_gate_section, |
| 52 | }; |
| 53 | |
| 54 | |
| 55 | unsigned long __init |
| 56 | paravirt_get_gate_patchlist(enum pv_gate_patchlist type) |
| 57 | { |
| 58 | |
| 59 | #define CASE(NAME, name) \ |
| 60 | case PV_GATE_START_##NAME: \ |
| 61 | return pv_patchdata.start_##name##_patchlist; \ |
| 62 | case PV_GATE_END_##NAME: \ |
| 63 | return pv_patchdata.end_##name##_patchlist; \ |
| 64 | |
| 65 | switch (type) { |
| 66 | CASE(FSYSCALL, fsyscall); |
| 67 | CASE(BRL_FSYS_BUBBLE_DOWN, brl_fsys_bubble_down); |
| 68 | CASE(VTOP, vtop); |
| 69 | CASE(MCKINLEY_E9, mckinley_e9); |
| 70 | default: |
| 71 | BUG(); |
| 72 | break; |
| 73 | } |
| 74 | return 0; |
| 75 | } |
| 76 | |
| 77 | void * __init |
| 78 | paravirt_get_gate_section(void) |
| 79 | { |
| 80 | return pv_patchdata.gate_section; |
| 81 | } |