4 * Copyright (c) 2003 Fabrice Bellard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 int __op_param1, __op_param2, __op_param3;
22 int __op_jmp0, __op_jmp1, __op_jmp2, __op_jmp3;
25 static inline void flush_icache_range(unsigned long start, unsigned long stop)
31 static inline void flush_icache_range(unsigned long start, unsigned long stop)
37 static inline void flush_icache_range(unsigned long start, unsigned long stop)
43 static inline void flush_icache_range(unsigned long start, unsigned long stop)
50 #define MIN_CACHE_LINE_SIZE 8 /* conservative value */
52 static void inline flush_icache_range(unsigned long start, unsigned long stop)
56 p = start & ~(MIN_CACHE_LINE_SIZE - 1);
57 stop = (stop + MIN_CACHE_LINE_SIZE - 1) & ~(MIN_CACHE_LINE_SIZE - 1);
59 for (p = start; p < stop; p += MIN_CACHE_LINE_SIZE) {
60 asm volatile ("dcbst 0,%0" : : "r"(p) : "memory");
62 asm volatile ("sync" : : : "memory");
63 for (p = start; p < stop; p += MIN_CACHE_LINE_SIZE) {
64 asm volatile ("icbi 0,%0" : : "r"(p) : "memory");
66 asm volatile ("sync" : : : "memory");
67 asm volatile ("isync" : : : "memory");
72 static inline void flush_icache_range(unsigned long start, unsigned long stop)
80 static void inline flush_icache_range(unsigned long start, unsigned long stop)
84 p = start & ~(8UL - 1UL);
85 stop = (stop + (8UL - 1UL)) & ~(8UL - 1UL);
87 for (; p < stop; p += 8)
88 __asm__ __volatile__("flush\t%0" : : "r" (p));
94 static inline void flush_icache_range(unsigned long start, unsigned long stop)
96 register unsigned long _beg __asm ("a1") = start;
97 register unsigned long _end __asm ("a2") = stop;
98 register unsigned long _flg __asm ("a3") = 0;
99 __asm __volatile__ ("swi 0x9f0002" : : "r" (_beg), "r" (_end), "r" (_flg));
104 #include <asm/cachectl.h>
105 static inline void flush_icache_range(unsigned long start, unsigned long stop)
107 cacheflush(start,FLUSH_SCOPE_LINE,FLUSH_CACHE_BOTH,stop-start+16);
113 register int gp asm("$29");
115 static inline void immediate_ldah(void *p, int val) {
117 long high = ((val >> 16) + ((val >> 15) & 1)) & 0xffff;
123 static inline void immediate_lda(void *dest, int val) {
124 *(uint16_t *) dest = val;
126 void fix_bsr(void *p, int offset) {
128 *dest &= ~((1 << 21) - 1);
129 *dest |= (offset >> 2) & ((1 << 21) - 1);
132 #endif /* __alpha__ */
136 #define MAX_OP_SIZE (128 * 4) /* in bytes */
137 /* max size of the code that can be generated without calling arm_flush_ldr */
138 #define MAX_FRAG_SIZE (1024 * 4)
139 //#define MAX_FRAG_SIZE (135 * 4) /* for testing */
141 typedef struct LDREntry {
146 static LDREntry arm_ldr_table[1024];
147 static uint32_t arm_data_table[1024];
149 extern char exec_loop;
151 static inline void arm_reloc_pc24(uint32_t *ptr, uint32_t insn, int val)
153 *ptr = (insn & ~0xffffff) | ((insn + ((val - (int)ptr) >> 2)) & 0xffffff);
156 static uint8_t *arm_flush_ldr(uint8_t *gen_code_ptr,
157 LDREntry *ldr_start, LDREntry *ldr_end,
158 uint32_t *data_start, uint32_t *data_end,
163 int offset, data_size, target;
167 data_size = (uint8_t *)data_end - (uint8_t *)data_start;
170 /* generate branch to skip the data */
173 target = (long)gen_code_ptr + data_size + 4;
174 arm_reloc_pc24((uint32_t *)gen_code_ptr, 0xeafffffe, target);
179 data_ptr = gen_code_ptr;
180 memcpy(gen_code_ptr, data_start, data_size);
181 gen_code_ptr += data_size;
183 /* patch the ldr to point to the data */
184 for(le = ldr_start; le < ldr_end; le++) {
185 ptr = (uint32_t *)le->ptr;
186 offset = ((unsigned long)(le->data_ptr) - (unsigned long)data_start) +
187 (unsigned long)data_ptr -
188 (unsigned long)ptr - 8;
189 insn = *ptr & ~(0xfff | 0x00800000);
195 if (offset > 0xfff) {
196 fprintf(stderr, "Error ldr offset\n");