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Comparing SheepShaver/src/Unix/sysdeps.h (file contents):
Revision 1.4 by gbeauche, 2003-05-22T22:12:05Z vs.
Revision 1.36 by gbeauche, 2005-01-30T21:48:20Z

# Line 1 | Line 1
1   /*
2   *  sysdeps.h - System dependent definitions for Linux
3   *
4 < *  SheepShaver (C) 1997-2002 Christian Bauer and Marc Hellwig
4 > *  SheepShaver (C) 1997-2005 Christian Bauer and Marc Hellwig
5   *
6   *  This program is free software; you can redistribute it and/or modify
7   *  it under the terms of the GNU General Public License as published by
# Line 44 | Line 44
44   #include <string.h>
45   #include <signal.h>
46  
47 + #ifdef HAVE_PTHREADS
48 + # include <pthread.h>
49 + #endif
50 +
51   #ifdef HAVE_FCNTL_H
52   # include <fcntl.h>
53   #endif
# Line 59 | Line 63
63   # endif
64   #endif
65  
66 < // Mac and host address space are the same
67 < #define REAL_ADDRESSING 1
66 > // Define for external components
67 > #define SHEEPSHAVER 1
68  
69 < // Are we using a PPC emulator or the real thing?
70 < #ifdef __powerpc__
71 < #define EMULATED_PPC 0
69 > // Always use Real Addressing mode on native architectures
70 > // Otherwise, use Direct Addressing mode if NATMEM_OFFSET is set
71 > #if !defined(EMULATED_PPC)
72 > #define REAL_ADDRESSING 1
73 > #elif defined(__CYGWIN__)
74 > #define DIRECT_ADDRESSING 1
75 > #define DIRECT_ADDRESSING_HACK 1
76 > /*
77 >  The following address translation functions were empirically
78 >  determined on a Windows XP system running Cygwin 1.5.12-1 so
79 >  that RAM size can be maximized (up to 960 MB) and avoiding
80 >  the use of a TLB. This also takes into account reduced address
81 >  space available when the Cygwin runtime is used.
82 > */
83 > #define DIRECT_ADDRESSING_VIRT2PHYS(ADDR) \
84 >        ((ADDR) + (((ADDR)  < 0x41000000) ? 0x39000000 : 0xcf800000))
85 > #define DIRECT_ADDRESSING_PHYS2VIRT(ADDR) \
86 >        ((ADDR) - (((ADDR) >= 0x39000000) ? 0x39000000 : 0xcf800000))
87 > #elif defined(NATMEM_OFFSET)
88 > #define DIRECT_ADDRESSING 1
89   #else
90 < #define EMULATED_PPC 1
90 > #define REAL_ADDRESSING 1
91   #endif
92  
93   #define POWERPC_ROM 1
94  
95 + #if EMULATED_PPC
96 + // Mac ROM is write protected when banked memory is used
97 + #if REAL_ADDRESSING || DIRECT_ADDRESSING
98 + # define ROM_IS_WRITE_PROTECTED 0
99 + # define USE_SCRATCHMEM_SUBTERFUGE 1
100 + #else
101 + # define ROM_IS_WRITE_PROTECTED 1
102 + #endif
103 + // Configure PowerPC emulator
104 + #define PPC_REENTRANT_JIT 1
105 + #define PPC_CHECK_INTERRUPTS 1
106 + #define PPC_DECODE_CACHE 1
107 + #define PPC_FLIGHT_RECORDER 1
108 + #define PPC_PROFILE_COMPILE_TIME 0
109 + #define PPC_PROFILE_GENERIC_CALLS 0
110 + #define KPX_MAX_CPUS 1
111 + #if ENABLE_DYNGEN
112 + // Don't bother with predecode cache when using JIT
113 + #define PPC_ENABLE_JIT 1
114 + #undef  PPC_DECODE_CACHE
115 + #endif
116 + #if defined(__i386__)
117 + #define DYNGEN_ASM_OPTS 1
118 + #endif
119 + #else
120 + // Mac ROM is write protected
121 + #define ROM_IS_WRITE_PROTECTED 1
122 + #define USE_SCRATCHMEM_SUBTERFUGE 0
123 + #endif
124 +
125   // Data types
126   typedef unsigned char uint8;
127   typedef signed char int8;
# Line 115 | Line 166 | typedef int64 intptr;
166   #error "Unsupported size of pointer"
167   #endif
168  
169 + /**
170 + *              Helper functions to byteswap data
171 + **/
172 +
173 + #if defined(__GNUC__)
174 + #if defined(__x86_64__) || defined(__i386__)
175 + // Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
176 + #define opt_bswap_32 do_opt_bswap_32
177 + static inline uint32 do_opt_bswap_32(uint32 x)
178 + {
179 +  uint32 v;
180 +  __asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x));
181 +  return v;
182 + }
183 + #endif
184 + #endif
185 +
186 + #ifdef HAVE_BYTESWAP_H
187 + #include <byteswap.h>
188 + #endif
189 +
190 + #ifdef  opt_bswap_16
191 + #undef  bswap_16
192 + #define bswap_16 opt_bswap_16
193 + #endif
194 + #ifndef bswap_16
195 + #define bswap_16 generic_bswap_16
196 + #endif
197 +
198 + static inline uint16 generic_bswap_16(uint16 x)
199 + {
200 +  return ((x & 0xff) << 8) | ((x >> 8) & 0xff);
201 + }
202 +
203 + #ifdef  opt_bswap_32
204 + #undef  bswap_32
205 + #define bswap_32 opt_bswap_32
206 + #endif
207 + #ifndef bswap_32
208 + #define bswap_32 generic_bswap_32
209 + #endif
210 +
211 + static inline uint32 generic_bswap_32(uint32 x)
212 + {
213 +  return (((x & 0xff000000) >> 24) |
214 +                  ((x & 0x00ff0000) >>  8) |
215 +                  ((x & 0x0000ff00) <<  8) |
216 +                  ((x & 0x000000ff) << 24) );
217 + }
218 +
219 + #if defined(__i386__)
220 + #define opt_bswap_64 do_opt_bswap_64
221 + static inline uint64 do_opt_bswap_64(uint64 x)
222 + {
223 +  return (bswap_32(x >> 32) | (((uint64)bswap_32((uint32)x)) << 32));
224 + }
225 + #endif
226 +
227 + #ifdef  opt_bswap_64
228 + #undef  bswap_64
229 + #define bswap_64 opt_bswap_64
230 + #endif
231 + #ifndef bswap_64
232 + #define bswap_64 generic_bswap_64
233 + #endif
234 +
235 + static inline uint64 generic_bswap_64(uint64 x)
236 + {
237 +  return (((x & UVAL64(0xff00000000000000)) >> 56) |
238 +                  ((x & UVAL64(0x00ff000000000000)) >> 40) |
239 +                  ((x & UVAL64(0x0000ff0000000000)) >> 24) |
240 +                  ((x & UVAL64(0x000000ff00000000)) >>  8) |
241 +                  ((x & UVAL64(0x00000000ff000000)) <<  8) |
242 +                  ((x & UVAL64(0x0000000000ff0000)) << 24) |
243 +                  ((x & UVAL64(0x000000000000ff00)) << 40) |
244 +                  ((x & UVAL64(0x00000000000000ff)) << 56) );
245 + }
246 +
247 + #ifdef WORDS_BIGENDIAN
248 + static inline uint16 tswap16(uint16 x) { return x; }
249 + static inline uint32 tswap32(uint32 x) { return x; }
250 + static inline uint64 tswap64(uint64 x) { return x; }
251 + #else
252 + static inline uint16 tswap16(uint16 x) { return bswap_16(x); }
253 + static inline uint32 tswap32(uint32 x) { return bswap_32(x); }
254 + static inline uint64 tswap64(uint64 x) { return bswap_64(x); }
255 + #endif
256 +
257 + // spin locks
258 + #ifdef __GNUC__
259 +
260 + #if defined(__powerpc__) || defined(__ppc__)
261 + #define HAVE_TEST_AND_SET 1
262 + static inline int testandset(volatile int *p)
263 + {
264 +        int ret;
265 +        __asm__ __volatile__("0:    lwarx       %0,0,%1\n"
266 +                                                 "      xor.    %0,%3,%0\n"
267 +                                                 "      bne             1f\n"
268 +                                                 "      stwcx.  %2,0,%1\n"
269 +                                                 "      bne-    0b\n"
270 +                                                 "1:    "
271 +                                                 : "=&r" (ret)
272 +                                                 : "r" (p), "r" (1), "r" (0)
273 +                                                 : "cr0", "memory");
274 +        return ret;
275 + }
276 + #endif
277 +
278 + /* FIXME: SheepShaver occasionnally hangs with those locks */
279 + #if 0 && (defined(__i386__) || defined(__x86_64__))
280 + #define HAVE_TEST_AND_SET 1
281 + static inline int testandset(volatile int *p)
282 + {
283 +        long int ret;
284 +        /* Note: the "xchg" instruction does not need a "lock" prefix */
285 +        __asm__ __volatile__("xchgl %k0, %1"
286 +                                                 : "=r" (ret), "=m" (*p)
287 +                                                 : "0" (1), "m" (*p)
288 +                                                 : "memory");
289 +        return ret;
290 + }
291 + #endif
292 +
293 + #ifdef __s390__
294 + #define HAVE_TEST_AND_SET 1
295 + static inline int testandset(volatile int *p)
296 + {
297 +        int ret;
298 +
299 +        __asm__ __volatile__("0: cs    %0,%1,0(%2)\n"
300 +                                                 "   jl    0b"
301 +                                                 : "=&d" (ret)
302 +                                                 : "r" (1), "a" (p), "0" (*p)
303 +                                                 : "cc", "memory" );
304 +        return ret;
305 + }
306 + #endif
307 +
308 + #ifdef __alpha__
309 + #define HAVE_TEST_AND_SET 1
310 + static inline int testandset(volatile int *p)
311 + {
312 +        int ret;
313 +        unsigned long one;
314 +
315 +        __asm__ __volatile__("0:        mov 1,%2\n"
316 +                                                 "      ldl_l %0,%1\n"
317 +                                                 "      stl_c %2,%1\n"
318 +                                                 "      beq %2,1f\n"
319 +                                                 ".subsection 2\n"
320 +                                                 "1:    br 0b\n"
321 +                                                 ".previous"
322 +                                                 : "=r" (ret), "=m" (*p), "=r" (one)
323 +                                                 : "m" (*p));
324 +        return ret;
325 + }
326 + #endif
327 +
328 + #ifdef __sparc__
329 + #define HAVE_TEST_AND_SET 1
330 + static inline int testandset(volatile int *p)
331 + {
332 +        int ret;
333 +
334 +        __asm__ __volatile__("ldstub    [%1], %0"
335 +                                                 : "=r" (ret)
336 +                                                 : "r" (p)
337 +                                                 : "memory");
338 +
339 +        return (ret ? 1 : 0);
340 + }
341 + #endif
342 +
343 + #ifdef __arm__
344 + #define HAVE_TEST_AND_SET 1
345 + static inline int testandset(volatile int *p)
346 + {
347 +        register unsigned int ret;
348 +        __asm__ __volatile__("swp %0, %1, [%2]"
349 +                                                 : "=r"(ret)
350 +                                                 : "0"(1), "r"(p));
351 +        
352 +        return ret;
353 + }
354 + #endif
355 +
356 + #endif /* __GNUC__ */
357 +
358 + typedef volatile int spinlock_t;
359 +
360 + static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
361 +
362 + #if HAVE_TEST_AND_SET
363 + #define HAVE_SPINLOCKS 1
364 + static inline void spin_lock(spinlock_t *lock)
365 + {
366 +        while (testandset(lock));
367 + }
368 +
369 + static inline void spin_unlock(spinlock_t *lock)
370 + {
371 +        *lock = 0;
372 + }
373 +
374 + static inline int spin_trylock(spinlock_t *lock)
375 + {
376 +        return !testandset(lock);
377 + }
378 + #else
379 + static inline void spin_lock(spinlock_t *lock)
380 + {
381 + }
382 +
383 + static inline void spin_unlock(spinlock_t *lock)
384 + {
385 + }
386 +
387 + static inline int spin_trylock(spinlock_t *lock)
388 + {
389 +        return 1;
390 + }
391 + #endif
392 +
393   // Time data type for Time Manager emulation
394   #ifdef HAVE_CLOCK_GETTIME
395   typedef struct timespec tm_time_t;
# Line 122 | Line 397 | typedef struct timespec tm_time_t;
397   typedef struct timeval tm_time_t;
398   #endif
399  
400 + // Timing functions
401 + extern uint64 GetTicks_usec(void);
402 + extern void Delay_usec(uint32 usec);
403 +
404 + #if defined(HAVE_PTHREADS) || (defined(__linux__) && defined(__powerpc__))
405   // Setup pthread attributes
406   extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
407 + #endif
408  
409   // Various definitions
410   typedef struct rgb_color {
# Line 133 | Line 414 | typedef struct rgb_color {
414          uint8           alpha;
415   } rgb_color;
416  
417 + // X11 display fast locks
418 + #ifdef HAVE_SPINLOCKS
419 + #define X11_LOCK_TYPE spinlock_t
420 + #define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
421 + #define XDisplayLock() spin_lock(&x_display_lock)
422 + #define XDisplayUnlock() spin_unlock(&x_display_lock)
423 + #elif defined(HAVE_PTHREADS)
424 + #define X11_LOCK_TYPE pthread_mutex_t
425 + #define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
426 + #define XDisplayLock() pthread_mutex_lock(&x_display_lock);
427 + #define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
428 + #else
429 + #define XDisplayLock()
430 + #define XDisplayUnlock()
431 + #endif
432 + #ifdef X11_LOCK_TYPE
433 + extern X11_LOCK_TYPE x_display_lock;
434 + #endif
435 +
436   // Macro for calling MacOS routines
437 < #define CallMacOS(type, tvect) call_macos((uint32)tvect)
438 < #define CallMacOS1(type, tvect, arg1) call_macos1((uint32)tvect, (uint32)arg1)
439 < #define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uint32)tvect, (uint32)arg1, (uint32)arg2)
440 < #define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3)
441 < #define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4)
442 < #define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5)
443 < #define CallMacOS6(type, tvect, arg1, arg2, arg3, arg4, arg5, arg6) call_macos6((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5, (uint32)arg6)
444 < #define CallMacOS7(type, tvect, arg1, arg2, arg3, arg4, arg5, arg6, arg7) call_macos7((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5, (uint32)arg6, (uint32)arg7)
437 > #define CallMacOS(type, tvect) call_macos((uintptr)tvect)
438 > #define CallMacOS1(type, tvect, arg1) call_macos1((uintptr)tvect, (uintptr)arg1)
439 > #define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uintptr)tvect, (uintptr)arg1, (uintptr)arg2)
440 > #define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3)
441 > #define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4)
442 > #define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5)
443 > #define CallMacOS6(type, tvect, arg1, arg2, arg3, arg4, arg5, arg6) call_macos6((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5, (uintptr)arg6)
444 > #define CallMacOS7(type, tvect, arg1, arg2, arg3, arg4, arg5, arg6, arg7) call_macos7((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5, (uintptr)arg6, (uintptr)arg7)
445  
446   #ifdef __cplusplus
447   extern "C" {

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