root / target-cris / op_helper.c @ 94cff60a
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1 | 81fdc5f8 | ths | /*
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2 | 81fdc5f8 | ths | * CRIS helper routines
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3 | 81fdc5f8 | ths | *
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4 | 81fdc5f8 | ths | * Copyright (c) 2007 AXIS Communications
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5 | 81fdc5f8 | ths | * Written by Edgar E. Iglesias
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6 | 81fdc5f8 | ths | *
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7 | 81fdc5f8 | ths | * This library is free software; you can redistribute it and/or
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8 | 81fdc5f8 | ths | * modify it under the terms of the GNU Lesser General Public
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9 | 81fdc5f8 | ths | * License as published by the Free Software Foundation; either
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10 | 81fdc5f8 | ths | * version 2 of the License, or (at your option) any later version.
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11 | 81fdc5f8 | ths | *
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12 | 81fdc5f8 | ths | * This library is distributed in the hope that it will be useful,
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13 | 81fdc5f8 | ths | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | 81fdc5f8 | ths | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 | 81fdc5f8 | ths | * Lesser General Public License for more details.
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16 | 81fdc5f8 | ths | *
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17 | 81fdc5f8 | ths | * You should have received a copy of the GNU Lesser General Public
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18 | 81fdc5f8 | ths | * License along with this library; if not, write to the Free Software
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19 | 81fdc5f8 | ths | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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20 | 81fdc5f8 | ths | */
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21 | 81fdc5f8 | ths | |
22 | 81fdc5f8 | ths | #include <assert.h> |
23 | 81fdc5f8 | ths | #include "exec.h" |
24 | 81fdc5f8 | ths | |
25 | 81fdc5f8 | ths | #define MMUSUFFIX _mmu
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26 | 81fdc5f8 | ths | #define GETPC() (__builtin_return_address(0)) |
27 | 81fdc5f8 | ths | |
28 | 81fdc5f8 | ths | #define SHIFT 0 |
29 | 81fdc5f8 | ths | #include "softmmu_template.h" |
30 | 81fdc5f8 | ths | |
31 | 81fdc5f8 | ths | #define SHIFT 1 |
32 | 81fdc5f8 | ths | #include "softmmu_template.h" |
33 | 81fdc5f8 | ths | |
34 | 81fdc5f8 | ths | #define SHIFT 2 |
35 | 81fdc5f8 | ths | #include "softmmu_template.h" |
36 | 81fdc5f8 | ths | |
37 | 81fdc5f8 | ths | #define SHIFT 3 |
38 | 81fdc5f8 | ths | #include "softmmu_template.h" |
39 | 81fdc5f8 | ths | |
40 | 81fdc5f8 | ths | /* Try to fill the TLB and return an exception if error. If retaddr is
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41 | 81fdc5f8 | ths | NULL, it means that the function was called in C code (i.e. not
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42 | 81fdc5f8 | ths | from generated code or from helper.c) */
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43 | 81fdc5f8 | ths | /* XXX: fix it to restore all registers */
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44 | 81fdc5f8 | ths | void tlb_fill (target_ulong addr, int is_write, int is_user, void *retaddr) |
45 | 81fdc5f8 | ths | { |
46 | 81fdc5f8 | ths | TranslationBlock *tb; |
47 | 81fdc5f8 | ths | CPUState *saved_env; |
48 | 81fdc5f8 | ths | target_phys_addr_t pc; |
49 | 81fdc5f8 | ths | int ret;
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50 | 81fdc5f8 | ths | |
51 | 81fdc5f8 | ths | /* XXX: hack to restore env in all cases, even if not called from
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52 | 81fdc5f8 | ths | generated code */
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53 | 81fdc5f8 | ths | saved_env = env; |
54 | 81fdc5f8 | ths | env = cpu_single_env; |
55 | 81fdc5f8 | ths | ret = cpu_cris_handle_mmu_fault(env, addr, is_write, is_user, 1);
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56 | 81fdc5f8 | ths | if (__builtin_expect(ret, 0)) { |
57 | 81fdc5f8 | ths | if (retaddr) {
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58 | 81fdc5f8 | ths | /* now we have a real cpu fault */
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59 | 81fdc5f8 | ths | pc = (target_phys_addr_t)retaddr; |
60 | 81fdc5f8 | ths | tb = tb_find_pc(pc); |
61 | 81fdc5f8 | ths | if (tb) {
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62 | 81fdc5f8 | ths | /* the PC is inside the translated code. It means that we have
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63 | 81fdc5f8 | ths | a virtual CPU fault */
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64 | 81fdc5f8 | ths | cpu_restore_state(tb, env, pc, NULL);
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65 | 81fdc5f8 | ths | } |
66 | 81fdc5f8 | ths | } |
67 | 81fdc5f8 | ths | cpu_loop_exit(); |
68 | 81fdc5f8 | ths | } |
69 | 81fdc5f8 | ths | env = saved_env; |
70 | 81fdc5f8 | ths | } |
71 | 81fdc5f8 | ths | |
72 | 81fdc5f8 | ths | void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec, |
73 | 81fdc5f8 | ths | int is_asi)
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74 | 81fdc5f8 | ths | { |
75 | 81fdc5f8 | ths | |
76 | 81fdc5f8 | ths | } |