LINT build test. Aggregated source code adjustments to bring most of the
[dragonfly.git] / sys / dev / drm / drm_os_freebsd.h
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1/*
2 * $FreeBSD: src/sys/dev/drm/drm_os_freebsd.h,v 1.10.2.1 2003/04/26 07:05:28 anholt Exp $
7b95be2a 3 * $DragonFly: src/sys/dev/drm/Attic/drm_os_freebsd.h,v 1.6 2003/07/21 07:57:40 dillon Exp $
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4 */
5#include <sys/param.h>
6#include <sys/queue.h>
7#include <sys/malloc.h>
8#include <sys/kernel.h>
9#include <sys/module.h>
10#include <sys/systm.h>
11#include <sys/conf.h>
12#include <sys/stat.h>
13#include <sys/proc.h>
14#include <sys/lock.h>
15#include <sys/fcntl.h>
16#include <sys/uio.h>
17#include <sys/filio.h>
18#include <sys/sysctl.h>
19#include <sys/bus.h>
20#include <sys/signalvar.h>
21#include <sys/poll.h>
22#include <vm/vm.h>
23#include <vm/pmap.h>
24#include <vm/vm_extern.h>
25#include <vm/vm_map.h>
26#include <vm/vm_param.h>
27#include <machine/param.h>
28#include <machine/pmap.h>
29#include <machine/bus.h>
30#include <machine/resource.h>
31#include <sys/mman.h>
32#include <sys/rman.h>
33#include <sys/memrange.h>
34#include <pci/pcivar.h>
35#if __FreeBSD_version >= 500000
36#include <sys/selinfo.h>
37#else
38#include <sys/select.h>
39#endif
40#include <sys/bus.h>
41#if __FreeBSD_version >= 400005
42#include <sys/taskqueue.h>
43#endif
44#if __FreeBSD_version >= 500000
45#include <sys/mutex.h>
46#endif
47
48#if __FreeBSD_version >= 400006
49#define __REALLY_HAVE_AGP __HAVE_AGP
50#endif
51
52#ifdef __i386__
53#define __REALLY_HAVE_MTRR (__HAVE_MTRR) && (__FreeBSD_version >= 500000)
54#else
55#define __REALLY_HAVE_MTRR 0
56#endif
57#define __REALLY_HAVE_SG (__HAVE_SG)
58
59#if __REALLY_HAVE_AGP
60#include <pci/agpvar.h>
61#include <sys/agpio.h>
62#endif
63
64#include <opt_drm.h>
65#if DRM_DEBUG
66#undef DRM_DEBUG_CODE
67#define DRM_DEBUG_CODE 2
68#endif
69#undef DRM_DEBUG
70
71#if DRM_LINUX
72#include <sys/file.h>
73#include <sys/proc.h>
74#include <machine/../linux/linux.h>
75#include <machine/../linux/linux_proto.h>
76#endif
77
78#define DRM_TIME_SLICE (hz/20) /* Time slice for GLXContexts */
79
80#define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)
81#define DRM_DEV_UID 0
82#define DRM_DEV_GID 0
83#define CDEV_MAJOR 145
84
85#if __FreeBSD_version >= 500000
86#define DRM_CURPROC curthread
87#define DRM_STRUCTPROC struct thread
88#define DRM_SPINTYPE struct mtx
89#define DRM_SPININIT(l,name) mtx_init(&l, name, NULL, MTX_DEF)
90#define DRM_SPINUNINIT(l) mtx_destroy(&l)
91#define DRM_SPINLOCK(l) mtx_lock(l)
92#define DRM_SPINUNLOCK(u) mtx_unlock(u);
93#define DRM_CURRENTPID curthread->td_proc->p_pid
94#else
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95#define DRM_CURPROC curthread
96#define DRM_STRUCTPROC struct thread
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97#define DRM_SPINTYPE struct lwkt_token
98#define DRM_SPININIT(l,name) lwkt_inittoken(&l)
984263bc 99#define DRM_SPINUNINIT(l)
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100#define DRM_SPINLOCK(l) lwkt_gettoken(l)
101#define DRM_SPINUNLOCK(u) lwkt_reltoken(u);
7b95be2a 102#define DRM_CURRENTPID curthread->td_proc->p_pid
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103#endif
104
105/* Currently our DRMFILE (filp) is a void * which is actually the pid
106 * of the current process. It should be a per-open unique pointer, but
107 * code for that is not yet written */
108#define DRMFILE void *
109#define DRM_IOCTL_ARGS dev_t kdev, u_long cmd, caddr_t data, int flags, DRM_STRUCTPROC *p, DRMFILE filp
110#define DRM_LOCK lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, DRM_CURPROC)
111#define DRM_UNLOCK lockmgr(&dev->dev_lock, LK_RELEASE, 0, DRM_CURPROC)
dadab5e9 112#define DRM_SUSER(td) suser(td)
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113#define DRM_TASKQUEUE_ARGS void *arg, int pending
114#define DRM_IRQ_ARGS void *arg
115#define DRM_DEVICE drm_device_t *dev = kdev->si_drv1
116#define DRM_MALLOC(size) malloc( size, DRM(M_DRM), M_NOWAIT )
117#define DRM_FREE(pt,size) free( pt, DRM(M_DRM) )
118#define DRM_VTOPHYS(addr) vtophys(addr)
119
120/* Read/write from bus space, with byteswapping to le if necessary */
121#define DRM_READ8(map, offset) *(volatile u_int8_t *) (((unsigned long)(map)->handle) + (offset))
122#define DRM_READ32(map, offset) *(volatile u_int32_t *)(((unsigned long)(map)->handle) + (offset))
123#define DRM_WRITE8(map, offset, val) *(volatile u_int8_t *) (((unsigned long)(map)->handle) + (offset)) = val
124#define DRM_WRITE32(map, offset, val) *(volatile u_int32_t *)(((unsigned long)(map)->handle) + (offset)) = val
125/*
126#define DRM_READ8(map, offset) bus_space_read_1( (map)->iot, (map)->ioh, (offset) )
127#define DRM_READ32(map, offset) bus_space_read_4( (map)->iot, (map)->ioh, (offset) )
128#define DRM_WRITE8(map, offset, val) bus_space_write_1( (map)->iot, (map)->ioh, (offset), (val) )
129#define DRM_WRITE32(map, offset, val) bus_space_write_4( (map)->iot, (map)->ioh, (offset), (val) )
130*/
131#define DRM_AGP_FIND_DEVICE() agp_find_device()
132#define DRM_ERR(v) v
133
134#define DRM_PRIV \
135 drm_file_t *priv = (drm_file_t *) DRM(find_file_by_proc)(dev, p); \
136 if (!priv) { \
137 DRM_DEBUG("can't find authenticator\n"); \
138 return EINVAL; \
139 }
140
141#define LOCK_TEST_WITH_RETURN(dev, filp) \
142do { \
143 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \
144 dev->lock.filp != filp) { \
145 DRM_ERROR("%s called without lock held\n", \
146 __FUNCTION__); \
147 return EINVAL; \
148 } \
149} while (0)
150
151#define DRM_UDELAY( udelay ) \
152do { \
153 struct timeval tv1, tv2; \
154 microtime(&tv1); \
155 do { \
156 microtime(&tv2); \
157 } \
158 while (((tv2.tv_sec-tv1.tv_sec)*1000000 + tv2.tv_usec - tv1.tv_usec) < udelay ); \
159} while (0)
160
161#define DRM_GETSAREA() \
162do { \
163 drm_map_list_entry_t *listentry; \
164 TAILQ_FOREACH(listentry, dev->maplist, link) { \
165 drm_local_map_t *map = listentry->map; \
166 if (map->type == _DRM_SHM && \
167 map->flags & _DRM_CONTAINS_LOCK) { \
168 dev_priv->sarea = map; \
169 break; \
170 } \
171 } \
172} while (0)
173
174#define DRM_HZ hz
175
176#define DRM_WAIT_ON( ret, queue, timeout, condition ) \
177while (!condition) { \
377d4740 178 ret = tsleep( &(queue), PCATCH, "drmwtq", (timeout) ); \
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179 if ( ret ) \
180 return ret; \
181}
182
183#define DRM_WAKEUP( queue ) wakeup( queue )
184#define DRM_WAKEUP_INT( queue ) wakeup( queue )
185#define DRM_INIT_WAITQUEUE( queue ) do {} while (0)
186
187#define DRM_COPY_TO_USER_IOCTL(user, kern, size) \
188 if ( IOCPARM_LEN(cmd) != size) \
189 return EINVAL; \
190 *user = kern;
191#define DRM_COPY_FROM_USER_IOCTL(kern, user, size) \
192 if ( IOCPARM_LEN(cmd) != size) \
193 return EINVAL; \
194 kern = *user;
195#define DRM_COPY_TO_USER(user, kern, size) \
196 copyout(kern, user, size)
197#define DRM_COPY_FROM_USER(kern, user, size) \
198 copyin(user, kern, size)
199/* Macros for userspace access with checking readability once */
200/* FIXME: can't find equivalent functionality for nocheck yet.
201 * It'll be slower than linux, but should be correct.
202 */
203#define DRM_VERIFYAREA_READ( uaddr, size ) \
204 (!useracc((caddr_t)uaddr, size, VM_PROT_READ))
205#define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \
206 copyin(arg2, arg1, arg3)
207#define DRM_GET_USER_UNCHECKED(val, uaddr) \
208 ((val) = fuword(uaddr), 0)
209
210#define DRM_WRITEMEMORYBARRIER( map ) \
211 bus_space_barrier((map)->iot, (map)->ioh, 0, (map)->size, 0);
212#define DRM_READMEMORYBARRIER( map ) \
213 bus_space_barrier((map)->iot, (map)->ioh, 0, (map)->size, BUS_SPACE_BARRIER_READ);
214
215#define PAGE_ALIGN(addr) round_page(addr)
216
217#ifndef M_WAITOK /* M_WAITOK (=0) name removed in -current */
218#define M_WAITOK 0
219#endif
220
221#define malloctype DRM(M_DRM)
222/* The macros conflicted in the MALLOC_DEFINE */
223MALLOC_DECLARE(malloctype);
224#undef malloctype
225
226typedef struct drm_chipinfo
227{
228 int vendor;
229 int device;
230 int supported;
231 char *name;
232} drm_chipinfo_t;
233
234#define cpu_to_le32(x) (x) /* FIXME */
235
236typedef unsigned long dma_addr_t;
237typedef u_int32_t atomic_t;
238typedef u_int32_t u32;
239typedef u_int16_t u16;
240typedef u_int8_t u8;
241#define atomic_set(p, v) (*(p) = (v))
242#define atomic_read(p) (*(p))
243#define atomic_inc(p) atomic_add_int(p, 1)
244#define atomic_dec(p) atomic_subtract_int(p, 1)
245#define atomic_add(n, p) atomic_add_int(p, n)
246#define atomic_sub(n, p) atomic_subtract_int(p, n)
247
248/* Fake this */
249
250#if __FreeBSD_version < 500000
251/* The extra atomic functions from 5.0 haven't been merged to 4.x */
252static __inline int
253atomic_cmpset_int(volatile u_int *dst, u_int exp, u_int src)
254{
255 int res = exp;
256
257 __asm __volatile (
258 " lock ; "
259 " cmpxchgl %1,%2 ; "
260 " setz %%al ; "
261 " movzbl %%al,%0 ; "
262 "1: "
263 "# atomic_cmpset_int"
264 : "+a" (res) /* 0 (result) */
265 : "r" (src), /* 1 */
266 "m" (*(dst)) /* 2 */
267 : "memory");
268
269 return (res);
270}
271#endif
272
273static __inline atomic_t
274test_and_set_bit(int b, volatile void *p)
275{
276 int s = splhigh();
277 unsigned int m = 1<<b;
278 unsigned int r = *(volatile int *)p & m;
279 *(volatile int *)p |= m;
280 splx(s);
281 return r;
282}
283
284static __inline void
285clear_bit(int b, volatile void *p)
286{
287 atomic_clear_int(((volatile int *)p) + (b >> 5), 1 << (b & 0x1f));
288}
289
290static __inline void
291set_bit(int b, volatile void *p)
292{
293 atomic_set_int(((volatile int *)p) + (b >> 5), 1 << (b & 0x1f));
294}
295
296static __inline int
297test_bit(int b, volatile void *p)
298{
299 return ((volatile int *)p)[b >> 5] & (1 << (b & 0x1f));
300}
301
302static __inline int
303find_first_zero_bit(volatile void *p, int max)
304{
305 int b;
306
307 for (b = 0; b < max; b += 32) {
308 if (((volatile int *)p)[b >> 5] != ~0) {
309 for (;;) {
310 if ((((volatile int *)p)[b >> 5] & (1 << (b & 0x1f))) == 0)
311 return b;
312 b++;
313 }
314 }
315 }
316 return max;
317}
318
319#define spldrm() spltty()
320
321#define memset(p, v, s) bzero(p, s)
322
323/*
324 * Fake out the module macros for versions of FreeBSD where they don't
325 * exist.
326 */
327#if (__FreeBSD_version < 500002 && __FreeBSD_version > 500000) || __FreeBSD_version < 420000
328#define MODULE_VERSION(a,b) struct __hack
329#define MODULE_DEPEND(a,b,c,d,e) struct __hack
330#endif
331
332/* Redefinitions to make templating easy */
333#define wait_queue_head_t atomic_t
334#define agp_memory void
335#define jiffies ticks
336
337 /* Macros to make printf easier */
338#define DRM_ERROR(fmt, arg...) \
339 printf("error: " "[" DRM_NAME ":%s] *ERROR* " fmt , __func__ , ## arg)
340#define DRM_MEM_ERROR(area, fmt, arg...) \
341 printf("error: " "[" DRM_NAME ":%s:%s] *ERROR* " fmt , \
342 __func__, DRM(mem_stats)[area].name , ##arg)
343#define DRM_INFO(fmt, arg...) printf("info: " "[" DRM_NAME "] " fmt , ## arg)
344
345#if DRM_DEBUG_CODE
346#define DRM_DEBUG(fmt, arg...) \
347 do { \
348 if (DRM(flags) & DRM_FLAG_DEBUG) \
349 printf("[" DRM_NAME ":%s] " fmt , __func__ , ## arg); \
350 } while (0)
351#else
352#define DRM_DEBUG(fmt, arg...) do { } while (0)
353#endif
354
355#if (__FreeBSD_version >= 500000) || ((__FreeBSD_version < 500000) && (__FreeBSD_version >= 410002))
356#define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS)
357#else
358#define DRM_SYSCTL_HANDLER_ARGS SYSCTL_HANDLER_ARGS
359#endif
360
361#define DRM_SYSCTL_PRINT(fmt, arg...) \
362 snprintf(buf, sizeof(buf), fmt, ##arg); \
363 error = SYSCTL_OUT(req, buf, strlen(buf)); \
364 if (error) return error;
365
366#define DRM_SYSCTL_PRINT_RET(ret, fmt, arg...) \
367 snprintf(buf, sizeof(buf), fmt, ##arg); \
368 error = SYSCTL_OUT(req, buf, strlen(buf)); \
369 if (error) { ret; return error; }
370
371
372#define DRM_FIND_MAP(dest, o) \
373 do { \
374 drm_map_list_entry_t *listentry; \
375 TAILQ_FOREACH(listentry, dev->maplist, link) { \
376 if ( listentry->map->offset == o ) { \
377 dest = listentry->map; \
378 break; \
379 } \
380 } \
381 } while (0)
382
383
384/* Internal functions */
385
386/* drm_drv.h */
387extern d_ioctl_t DRM(ioctl);
388extern d_open_t DRM(open);
389extern d_close_t DRM(close);
390extern d_read_t DRM(read);
391extern d_poll_t DRM(poll);
392extern d_mmap_t DRM(mmap);
393extern int DRM(open_helper)(dev_t kdev, int flags, int fmt,
394 DRM_STRUCTPROC *p, drm_device_t *dev);
395extern drm_file_t *DRM(find_file_by_proc)(drm_device_t *dev,
396 DRM_STRUCTPROC *p);
397
398/* sysctl support (drm_sysctl.h) */
399extern int DRM(sysctl_init)(drm_device_t *dev);
400extern int DRM(sysctl_cleanup)(drm_device_t *dev);
401
402/* Memory info sysctl (drm_memory.h) */
403extern int DRM(mem_info) DRM_SYSCTL_HANDLER_ARGS;