1 /* xf86drm.c -- User-level interface to DRM device
2 * Created: Tue Jan 5 08:16:21 1999 by faith@precisioninsight.com
4 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
5 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice (including the next
16 * paragraph) shall be included in all copies or substantial portions of the
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
23 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
24 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
25 * DEALINGS IN THE SOFTWARE.
27 * Authors: Rickard E. (Rik) Faith <faith@valinux.com>
28 * Kevin E. Martin <martin@valinux.com>
30 * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/xf86drm.c,v 1.17 2000/09/24 13:51:32 alanh Exp $
36 # include "xf86_OSproc.h"
37 # include "xf86_ansic.h"
38 # include "xf86Priv.h"
39 # define _DRM_MALLOC xalloc
40 # define _DRM_FREE xfree
41 # ifndef XFree86LOADER
42 # include <sys/stat.h>
43 # include <sys/mman.h>
54 # include <sys/types.h>
55 # include <sys/stat.h>
56 # include <sys/ioctl.h>
57 # include <sys/mman.h>
58 # include <sys/time.h>
59 # ifdef DRM_USE_MALLOC
60 # define _DRM_MALLOC malloc
61 # define _DRM_FREE free
62 extern int xf86InstallSIGIOHandler(int fd, void (*f)(int, void *), void *);
63 extern int xf86RemoveSIGIOHandler(int fd);
66 # define _DRM_MALLOC Xmalloc
67 # define _DRM_FREE Xfree
72 extern unsigned long _bus_base(void);
73 #define BUS_BASE _bus_base()
76 /* Not all systems have MAP_FAILED defined */
78 #define MAP_FAILED ((void *)-1)
85 #define DRM_MAJOR 226 /* Linux */
90 #define DRM_MAJOR 145 /* Should set in drm.h for *BSD */
94 #define DRM_MAX_MINOR 16
98 #include <sys/sysmacros.h> /* for makedev() */
102 /* This definition needs to be changed on
103 some systems if dev_t is a structure.
104 If there is a header file we can get it
105 from, there would be best. */
106 #define makedev(x,y) ((dev_t)(((x) << 8) | (y)))
109 static void *drmHashTable = NULL; /* Context switch callbacks */
111 typedef struct drmHashEntry {
113 void (*f)(int, void *, void *);
117 void *drmMalloc(int size)
120 if ((pt = _DRM_MALLOC(size))) memset(pt, 0, size);
124 void drmFree(void *pt)
126 if (pt) _DRM_FREE(pt);
129 /* drmStrdup can't use strdup(3), since it doesn't call _DRM_MALLOC... */
130 static char *drmStrdup(const char *s)
135 retval = _DRM_MALLOC(strlen(s)+1);
142 static unsigned long drmGetKeyFromFd(int fd)
155 static drmHashEntry *drmGetEntry(int fd)
157 unsigned long key = drmGetKeyFromFd(fd);
161 if (!drmHashTable) drmHashTable = drmHashCreate();
163 if (drmHashLookup(drmHashTable, key, &value)) {
164 entry = drmMalloc(sizeof(*entry));
167 entry->tagTable = drmHashCreate();
168 drmHashInsert(drmHashTable, key, entry);
175 static int drmOpenDevice(long dev, int minor)
184 mode_t dirmode = DRM_DEV_DIRMODE;
185 mode_t devmode = DRM_DEV_MODE;
186 int isroot = !geteuid();
187 #if defined(XFree86Server)
188 uid_t user = DRM_DEV_UID;
189 gid_t group = DRM_DEV_GID;
192 #if defined(XFree86Server)
193 devmode = xf86ConfigDRI.mode ? xf86ConfigDRI.mode : DRM_DEV_MODE;
194 dirmode = (devmode & S_IRUSR) ? S_IXUSR : 0;
195 dirmode |= (devmode & S_IRGRP) ? S_IXGRP : 0;
196 dirmode |= (devmode & S_IROTH) ? S_IXOTH : 0;
198 devmode &= ~(S_IXUSR|S_IXGRP|S_IXOTH);
199 group = (xf86ConfigDRI.group >= 0) ? xf86ConfigDRI.group : DRM_DEV_GID;
202 if (stat(DRM_DIR_NAME, &st)) {
203 if (!isroot) return DRM_ERR_NOT_ROOT;
204 remove(DRM_DIR_NAME);
205 mkdir(DRM_DIR_NAME, dirmode);
207 #if defined(XFree86Server)
208 chown(DRM_DIR_NAME, user, group);
209 chmod(DRM_DIR_NAME, dirmode);
212 sprintf(buf, DRM_DEV_NAME, DRM_DIR_NAME, minor);
213 if (stat(buf, &st) || st.st_rdev != dev) {
214 if (!isroot) return DRM_ERR_NOT_ROOT;
216 mknod(buf, S_IFCHR | devmode, dev);
218 #if defined(XFree86Server)
219 chown(buf, user, group);
223 if ((fd = open(buf, O_RDWR, 0)) >= 0) return fd;
228 int drmOpenMinor(int minor, int create)
233 if (create) return drmOpenDevice(makedev(DRM_MAJOR, minor), minor);
235 sprintf(buf, DRM_DEV_NAME, DRM_DIR_NAME, minor);
236 if ((fd = open(buf, O_RDWR, 0)) >= 0) return fd;
240 /* drmAvailable looks for (DRM_MAJOR, 0) and returns 1 if it returns
241 information for DRM_IOCTL_VERSION. For backward compatibility with
242 older Linux implementations, /proc/dri is also checked. */
244 int drmAvailable(void)
246 drmVersionPtr version;
250 if ((fd = drmOpenMinor(0, 1)) < 0) {
251 /* Try proc for backward Linux compatibility */
252 if (!access("/proc/dri/0", R_OK)) return 1;
256 if ((version = drmGetVersion(fd))) {
258 drmFreeVersion(version);
265 static int drmOpenByBusid(const char *busid)
271 for (i = 0; i < DRM_MAX_MINOR; i++) {
272 if ((fd = drmOpenMinor(i, 0)) >= 0) {
273 buf = drmGetBusid(fd);
274 if (buf && !strcmp(buf, busid)) {
278 if (buf) drmFreeBusid(buf);
285 static int drmOpenByName(const char *name)
289 drmVersionPtr version;
291 if (!drmAvailable()) {
292 #if !defined(XFree86Server)
295 /* try to load the kernel module now */
296 if (!xf86LoadKernelModule(name)) {
297 ErrorF("[drm] failed to load kernel module \"%s\"\n",
304 for (i = 0; i < DRM_MAX_MINOR; i++) {
305 if ((fd = drmOpenMinor(i, 1)) >= 0) {
306 if ((version = drmGetVersion(fd))) {
307 if (!strcmp(version->name, name)) {
308 drmFreeVersion(version);
311 drmFreeVersion(version);
317 /* Backward-compatibility /proc support */
318 for (i = 0; i < 8; i++) {
319 char proc_name[64], buf[512];
320 char *driver, *pt, *devstring;
323 sprintf(proc_name, "/proc/dri/%d/name", i);
324 if ((fd = open(proc_name, 0, 0)) >= 0) {
325 retcode = read(fd, buf, sizeof(buf)-1);
328 buf[retcode-1] = '\0';
329 for (driver = pt = buf; *pt && *pt != ' '; ++pt)
331 if (*pt) { /* Device is next */
333 if (!strcmp(driver, name)) { /* Match */
334 for (devstring = ++pt; *pt && *pt != ' '; ++pt)
336 if (*pt) { /* Found busid */
337 return drmOpenByBusid(++pt);
338 } else { /* No busid */
339 return drmOpenDevice(strtol(devstring, NULL, 0),i);
351 /* drmOpen looks up the specified name and busid, and opens the device
352 found. The entry in /dev/dri is created if necessary (and if root).
353 A file descriptor is returned. On error, the return value is
356 int drmOpen(const char *name, const char *busid)
359 if (busid) return drmOpenByBusid(busid);
360 return drmOpenByName(name);
363 void drmFreeVersion(drmVersionPtr v)
366 if (v->name) drmFree(v->name);
367 if (v->date) drmFree(v->date);
368 if (v->desc) drmFree(v->desc);
372 static void drmFreeKernelVersion(drm_version_t *v)
375 if (v->name) drmFree(v->name);
376 if (v->date) drmFree(v->date);
377 if (v->desc) drmFree(v->desc);
381 static void drmCopyVersion(drmVersionPtr d, const drm_version_t *s)
383 d->version_major = s->version_major;
384 d->version_minor = s->version_minor;
385 d->version_patchlevel = s->version_patchlevel;
386 d->name_len = s->name_len;
387 d->name = drmStrdup(s->name);
388 d->date_len = s->date_len;
389 d->date = drmStrdup(s->date);
390 d->desc_len = s->desc_len;
391 d->desc = drmStrdup(s->desc);
394 /* drmVersion obtains the version information via an ioctl. Similar
395 * information is available via /proc/dri. */
397 drmVersionPtr drmGetVersion(int fd)
399 drmVersionPtr retval;
400 drm_version_t *version = drmMalloc(sizeof(*version));
402 /* First, get the lengths */
403 version->name_len = 0;
404 version->name = NULL;
405 version->date_len = 0;
406 version->date = NULL;
407 version->desc_len = 0;
408 version->desc = NULL;
410 if (ioctl(fd, DRM_IOCTL_VERSION, version)) {
411 drmFreeKernelVersion(version);
415 /* Now, allocate space and get the data */
416 if (version->name_len)
417 version->name = drmMalloc(version->name_len + 1);
418 if (version->date_len)
419 version->date = drmMalloc(version->date_len + 1);
420 if (version->desc_len)
421 version->desc = drmMalloc(version->desc_len + 1);
423 if (ioctl(fd, DRM_IOCTL_VERSION, version)) {
424 drmFreeKernelVersion(version);
428 /* The results might not be null-terminated
429 strings, so terminate them. */
431 if (version->name_len) version->name[version->name_len] = '\0';
432 if (version->date_len) version->date[version->date_len] = '\0';
433 if (version->desc_len) version->desc[version->desc_len] = '\0';
435 /* Now, copy it all back into the
436 client-visible data structure... */
437 retval = drmMalloc(sizeof(*retval));
438 drmCopyVersion(retval, version);
439 drmFreeKernelVersion(version);
443 void drmFreeBusid(const char *busid)
445 drmFree((void *)busid);
448 char *drmGetBusid(int fd)
455 if (ioctl(fd, DRM_IOCTL_GET_UNIQUE, &u)) return NULL;
456 u.unique = drmMalloc(u.unique_len + 1);
457 if (ioctl(fd, DRM_IOCTL_GET_UNIQUE, &u)) return NULL;
458 u.unique[u.unique_len] = '\0';
462 int drmSetBusid(int fd, const char *busid)
466 u.unique = (char *)busid;
467 u.unique_len = strlen(busid);
469 if (ioctl(fd, DRM_IOCTL_SET_UNIQUE, &u)) return -errno;
473 int drmGetMagic(int fd, drmMagicPtr magic)
478 if (ioctl(fd, DRM_IOCTL_GET_MAGIC, &auth)) return -errno;
483 int drmAuthMagic(int fd, drmMagic magic)
488 if (ioctl(fd, DRM_IOCTL_AUTH_MAGIC, &auth)) return -errno;
492 int drmAddMap(int fd,
503 /* Make sure we add the bus_base to all but shm */
505 map.offset += BUS_BASE;
511 if (ioctl(fd, DRM_IOCTL_ADD_MAP, &map)) return -errno;
512 if (handle) *handle = (drmHandle)map.handle;
516 int drmAddBufs(int fd, int count, int size, drmBufDescFlags flags,
519 drm_buf_desc_t request;
521 request.count = count;
523 request.low_mark = 0;
524 request.high_mark = 0;
525 request.flags = flags;
526 request.agp_start = agp_offset;
528 if (ioctl(fd, DRM_IOCTL_ADD_BUFS, &request)) return -errno;
529 return request.count;
532 int drmMarkBufs(int fd, double low, double high)
540 if (ioctl(fd, DRM_IOCTL_INFO_BUFS, &info)) return -EINVAL;
542 if (!info.count) return -EINVAL;
544 if (!(info.list = drmMalloc(info.count * sizeof(*info.list))))
547 if (ioctl(fd, DRM_IOCTL_INFO_BUFS, &info)) {
553 for (i = 0; i < info.count; i++) {
554 info.list[i].low_mark = low * info.list[i].count;
555 info.list[i].high_mark = high * info.list[i].count;
556 if (ioctl(fd, DRM_IOCTL_MARK_BUFS, &info.list[i])) {
567 int drmFreeBufs(int fd, int count, int *list)
569 drm_buf_free_t request;
571 request.count = count;
573 if (ioctl(fd, DRM_IOCTL_FREE_BUFS, &request)) return -errno;
579 unsigned long key = drmGetKeyFromFd(fd);
580 drmHashEntry *entry = drmGetEntry(fd);
582 drmHashDestroy(entry->tagTable);
585 entry->tagTable = NULL;
587 drmHashDelete(drmHashTable, key);
596 drmAddressPtr address)
598 static unsigned long pagesize_mask = 0;
600 if (fd < 0) return -EINVAL;
603 pagesize_mask = getpagesize() - 1;
605 size = (size + pagesize_mask) & ~pagesize_mask;
607 *address = mmap(0, size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, handle);
608 if (*address == MAP_FAILED) return -errno;
612 int drmUnmap(drmAddress address, drmSize size)
614 return munmap(address, size);
617 drmBufInfoPtr drmGetBufInfo(int fd)
620 drmBufInfoPtr retval;
626 if (ioctl(fd, DRM_IOCTL_INFO_BUFS, &info)) return NULL;
629 if (!(info.list = drmMalloc(info.count * sizeof(*info.list))))
632 if (ioctl(fd, DRM_IOCTL_INFO_BUFS, &info)) {
636 /* Now, copy it all back into the
637 client-visible data structure... */
638 retval = drmMalloc(sizeof(*retval));
639 retval->count = info.count;
640 retval->list = drmMalloc(info.count * sizeof(*retval->list));
641 for (i = 0; i < info.count; i++) {
642 retval->list[i].count = info.list[i].count;
643 retval->list[i].size = info.list[i].size;
644 retval->list[i].low_mark = info.list[i].low_mark;
645 retval->list[i].high_mark = info.list[i].high_mark;
653 drmBufMapPtr drmMapBufs(int fd)
661 if (ioctl(fd, DRM_IOCTL_MAP_BUFS, &bufs)) return NULL;
664 if (!(bufs.list = drmMalloc(bufs.count * sizeof(*bufs.list))))
667 if (ioctl(fd, DRM_IOCTL_MAP_BUFS, &bufs)) {
671 /* Now, copy it all back into the
672 client-visible data structure... */
673 retval = drmMalloc(sizeof(*retval));
674 retval->count = bufs.count;
675 retval->list = drmMalloc(bufs.count * sizeof(*retval->list));
676 for (i = 0; i < bufs.count; i++) {
677 retval->list[i].idx = bufs.list[i].idx;
678 retval->list[i].total = bufs.list[i].total;
679 retval->list[i].used = 0;
680 retval->list[i].address = bufs.list[i].address;
687 int drmUnmapBufs(drmBufMapPtr bufs)
691 for (i = 0; i < bufs->count; i++) {
692 munmap(bufs->list[i].address, bufs->list[i].total);
697 #define DRM_DMA_RETRY 16
699 int drmDMA(int fd, drmDMAReqPtr request)
704 /* Copy to hidden structure */
705 dma.context = request->context;
706 dma.send_count = request->send_count;
707 dma.send_indices = request->send_list;
708 dma.send_sizes = request->send_sizes;
709 dma.flags = request->flags;
710 dma.request_count = request->request_count;
711 dma.request_size = request->request_size;
712 dma.request_indices = request->request_list;
713 dma.request_sizes = request->request_sizes;
716 ret = ioctl( fd, DRM_IOCTL_DMA, &dma );
717 } while ( ret && errno == EAGAIN && i++ < DRM_DMA_RETRY );
720 request->granted_count = dma.granted_count;
727 int drmGetLock(int fd, drmContext context, drmLockFlags flags)
731 lock.context = context;
733 if (flags & DRM_LOCK_READY) lock.flags |= _DRM_LOCK_READY;
734 if (flags & DRM_LOCK_QUIESCENT) lock.flags |= _DRM_LOCK_QUIESCENT;
735 if (flags & DRM_LOCK_FLUSH) lock.flags |= _DRM_LOCK_FLUSH;
736 if (flags & DRM_LOCK_FLUSH_ALL) lock.flags |= _DRM_LOCK_FLUSH_ALL;
737 if (flags & DRM_HALT_ALL_QUEUES) lock.flags |= _DRM_HALT_ALL_QUEUES;
738 if (flags & DRM_HALT_CUR_QUEUES) lock.flags |= _DRM_HALT_CUR_QUEUES;
740 while (ioctl(fd, DRM_IOCTL_LOCK, &lock))
745 int drmUnlock(int fd, drmContext context)
749 lock.context = context;
751 return ioctl(fd, DRM_IOCTL_UNLOCK, &lock);
754 drmContextPtr drmGetReservedContextList(int fd, int *count)
758 drmContextPtr retval;
763 if (ioctl(fd, DRM_IOCTL_RES_CTX, &res)) return NULL;
765 if (!res.count) return NULL;
767 if (!(list = drmMalloc(res.count * sizeof(*list)))) return NULL;
768 if (!(retval = drmMalloc(res.count * sizeof(*retval)))) {
774 if (ioctl(fd, DRM_IOCTL_RES_CTX, &res)) return NULL;
776 for (i = 0; i < res.count; i++) retval[i] = list[i].handle;
783 void drmFreeReservedContextList(drmContextPtr pt)
788 int drmCreateContext(int fd, drmContextPtr handle)
792 ctx.flags = 0; /* Modified with functions below */
793 if (ioctl(fd, DRM_IOCTL_ADD_CTX, &ctx)) return -errno;
794 *handle = ctx.handle;
798 int drmSwitchToContext(int fd, drmContext context)
802 ctx.handle = context;
803 if (ioctl(fd, DRM_IOCTL_SWITCH_CTX, &ctx)) return -errno;
807 int drmSetContextFlags(int fd, drmContext context, drmContextFlags flags)
811 /* Context preserving means that no context
812 switched are done between DMA buffers
813 from one context and the next. This is
814 suitable for use in the X server (which
815 promises to maintain hardware context,
816 or in the client-side library when
817 buffers are swapped on behalf of two
819 ctx.handle = context;
821 if (flags & DRM_CONTEXT_PRESERVED) ctx.flags |= _DRM_CONTEXT_PRESERVED;
822 if (flags & DRM_CONTEXT_2DONLY) ctx.flags |= _DRM_CONTEXT_2DONLY;
823 if (ioctl(fd, DRM_IOCTL_MOD_CTX, &ctx)) return -errno;
827 int drmGetContextFlags(int fd, drmContext context, drmContextFlagsPtr flags)
831 ctx.handle = context;
832 if (ioctl(fd, DRM_IOCTL_GET_CTX, &ctx)) return -errno;
834 if (ctx.flags & _DRM_CONTEXT_PRESERVED) *flags |= DRM_CONTEXT_PRESERVED;
835 if (ctx.flags & _DRM_CONTEXT_2DONLY) *flags |= DRM_CONTEXT_2DONLY;
839 int drmDestroyContext(int fd, drmContext handle)
843 if (ioctl(fd, DRM_IOCTL_RM_CTX, &ctx)) return -errno;
847 int drmCreateDrawable(int fd, drmDrawablePtr handle)
850 if (ioctl(fd, DRM_IOCTL_ADD_DRAW, &draw)) return -errno;
851 *handle = draw.handle;
855 int drmDestroyDrawable(int fd, drmDrawable handle)
858 draw.handle = handle;
859 if (ioctl(fd, DRM_IOCTL_RM_DRAW, &draw)) return -errno;
863 int drmAgpAcquire(int fd)
865 if (ioctl(fd, DRM_IOCTL_AGP_ACQUIRE, NULL)) return -errno;
869 int drmAgpRelease(int fd)
871 if (ioctl(fd, DRM_IOCTL_AGP_RELEASE, NULL)) return -errno;
875 int drmAgpEnable(int fd, unsigned long mode)
880 if (ioctl(fd, DRM_IOCTL_AGP_ENABLE, &m)) return -errno;
884 int drmAgpAlloc(int fd, unsigned long size, unsigned long type,
885 unsigned long *address, unsigned long *handle)
892 if (ioctl(fd, DRM_IOCTL_AGP_ALLOC, &b)) return -errno;
893 if (address != 0UL) *address = b.physical;
898 int drmAgpFree(int fd, unsigned long handle)
904 if (ioctl(fd, DRM_IOCTL_AGP_FREE, &b)) return -errno;
908 int drmAgpBind(int fd, unsigned long handle, unsigned long offset)
914 if (ioctl(fd, DRM_IOCTL_AGP_BIND, &b)) return -errno;
918 int drmAgpUnbind(int fd, unsigned long handle)
924 if (ioctl(fd, DRM_IOCTL_AGP_UNBIND, &b)) return -errno;
928 int drmAgpVersionMajor(int fd)
932 if (ioctl(fd, DRM_IOCTL_AGP_INFO, &i)) return -errno;
933 return i.agp_version_major;
936 int drmAgpVersionMinor(int fd)
940 if (ioctl(fd, DRM_IOCTL_AGP_INFO, &i)) return -errno;
941 return i.agp_version_minor;
944 unsigned long drmAgpGetMode(int fd)
948 if (ioctl(fd, DRM_IOCTL_AGP_INFO, &i)) return 0;
952 unsigned long drmAgpBase(int fd)
956 if (ioctl(fd, DRM_IOCTL_AGP_INFO, &i)) return 0;
957 return i.aperture_base;
960 unsigned long drmAgpSize(int fd)
964 if (ioctl(fd, DRM_IOCTL_AGP_INFO, &i)) return 0;
965 return i.aperture_size;
968 unsigned long drmAgpMemoryUsed(int fd)
972 if (ioctl(fd, DRM_IOCTL_AGP_INFO, &i)) return 0;
973 return i.memory_used;
976 unsigned long drmAgpMemoryAvail(int fd)
980 if (ioctl(fd, DRM_IOCTL_AGP_INFO, &i)) return 0;
981 return i.memory_allowed;
984 unsigned int drmAgpVendorId(int fd)
988 if (ioctl(fd, DRM_IOCTL_AGP_INFO, &i)) return 0;
992 unsigned int drmAgpDeviceId(int fd)
996 if (ioctl(fd, DRM_IOCTL_AGP_INFO, &i)) return 0;
1000 int drmError(int err, const char *label)
1003 case DRM_ERR_NO_DEVICE: fprintf(stderr, "%s: no device\n", label); break;
1004 case DRM_ERR_NO_ACCESS: fprintf(stderr, "%s: no access\n", label); break;
1005 case DRM_ERR_NOT_ROOT: fprintf(stderr, "%s: not root\n", label); break;
1006 case DRM_ERR_INVALID: fprintf(stderr, "%s: invalid args\n", label);break;
1008 if (err < 0) err = -err;
1009 fprintf( stderr, "%s: error %d (%s)\n", label, err, strerror(err) );
1016 int drmCtlInstHandler(int fd, int irq)
1020 ctl.func = DRM_INST_HANDLER;
1022 if (ioctl(fd, DRM_IOCTL_CONTROL, &ctl)) return -errno;
1026 int drmCtlUninstHandler(int fd)
1030 ctl.func = DRM_UNINST_HANDLER;
1032 if (ioctl(fd, DRM_IOCTL_CONTROL, &ctl)) return -errno;
1036 int drmFinish(int fd, int context, drmLockFlags flags)
1040 lock.context = context;
1042 if (flags & DRM_LOCK_READY) lock.flags |= _DRM_LOCK_READY;
1043 if (flags & DRM_LOCK_QUIESCENT) lock.flags |= _DRM_LOCK_QUIESCENT;
1044 if (flags & DRM_LOCK_FLUSH) lock.flags |= _DRM_LOCK_FLUSH;
1045 if (flags & DRM_LOCK_FLUSH_ALL) lock.flags |= _DRM_LOCK_FLUSH_ALL;
1046 if (flags & DRM_HALT_ALL_QUEUES) lock.flags |= _DRM_HALT_ALL_QUEUES;
1047 if (flags & DRM_HALT_CUR_QUEUES) lock.flags |= _DRM_HALT_CUR_QUEUES;
1048 if (ioctl(fd, DRM_IOCTL_FINISH, &lock)) return -errno;
1052 int drmGetInterruptFromBusID(int fd, int busnum, int devnum, int funcnum)
1058 p.funcnum = funcnum;
1059 if (ioctl(fd, DRM_IOCTL_IRQ_BUSID, &p)) return -errno;
1063 int drmAddContextTag(int fd, drmContext context, void *tag)
1065 drmHashEntry *entry = drmGetEntry(fd);
1067 if (drmHashInsert(entry->tagTable, context, tag)) {
1068 drmHashDelete(entry->tagTable, context);
1069 drmHashInsert(entry->tagTable, context, tag);
1074 int drmDelContextTag(int fd, drmContext context)
1076 drmHashEntry *entry = drmGetEntry(fd);
1078 return drmHashDelete(entry->tagTable, context);
1081 void *drmGetContextTag(int fd, drmContext context)
1083 drmHashEntry *entry = drmGetEntry(fd);
1086 if (drmHashLookup(entry->tagTable, context, &value)) return NULL;
1091 int drmGetMap(int fd, int idx, drmHandle *offset, drmSize *size,
1092 drmMapType *type, drmMapFlags *flags, drmHandle *handle,
1098 if (ioctl(fd, DRM_IOCTL_GET_MAP, &map)) return -errno;
1099 *offset = map.offset;
1103 *handle = (unsigned long)map.handle;
1108 int drmGetClient(int fd, int idx, int *auth, int *pid, int *uid,
1109 unsigned long *magic, unsigned long *iocs)
1111 drm_client_t client;
1114 if (ioctl(fd, DRM_IOCTL_GET_CLIENT, &client)) return -errno;
1115 *auth = client.auth;
1118 *magic = client.magic;
1119 *iocs = client.iocs;
1123 int drmGetStats(int fd, drmStatsT *stats)
1128 if (ioctl(fd, DRM_IOCTL_GET_STATS, &s)) return -errno;
1131 memset(stats, 0, sizeof(*stats));
1132 if (s.count > sizeof(stats->data)/sizeof(stats->data[0]))
1136 stats->data[i].long_format = "%-20.20s"; \
1137 stats->data[i].rate_format = "%8.8s"; \
1138 stats->data[i].isvalue = 1; \
1139 stats->data[i].verbose = 0
1142 stats->data[i].long_format = "%-20.20s"; \
1143 stats->data[i].rate_format = "%5.5s"; \
1144 stats->data[i].isvalue = 0; \
1145 stats->data[i].mult_names = "kgm"; \
1146 stats->data[i].mult = 1000; \
1147 stats->data[i].verbose = 0
1150 stats->data[i].long_format = "%-20.20s"; \
1151 stats->data[i].rate_format = "%5.5s"; \
1152 stats->data[i].isvalue = 0; \
1153 stats->data[i].mult_names = "KGM"; \
1154 stats->data[i].mult = 1024; \
1155 stats->data[i].verbose = 0
1158 stats->count = s.count;
1159 for (i = 0; i < s.count; i++) {
1160 stats->data[i].value = s.data[i].value;
1161 switch (s.data[i].type) {
1162 case _DRM_STAT_LOCK:
1163 stats->data[i].long_name = "Lock";
1164 stats->data[i].rate_name = "Lock";
1167 case _DRM_STAT_OPENS:
1168 stats->data[i].long_name = "Opens";
1169 stats->data[i].rate_name = "O";
1171 stats->data[i].verbose = 1;
1173 case _DRM_STAT_CLOSES:
1174 stats->data[i].long_name = "Closes";
1175 stats->data[i].rate_name = "Lock";
1177 stats->data[i].verbose = 1;
1179 case _DRM_STAT_IOCTLS:
1180 stats->data[i].long_name = "Ioctls";
1181 stats->data[i].rate_name = "Ioc/s";
1184 case _DRM_STAT_LOCKS:
1185 stats->data[i].long_name = "Locks";
1186 stats->data[i].rate_name = "Lck/s";
1189 case _DRM_STAT_UNLOCKS:
1190 stats->data[i].long_name = "Unlocks";
1191 stats->data[i].rate_name = "Unl/s";
1195 stats->data[i].long_name = "IRQs";
1196 stats->data[i].rate_name = "IRQ/s";
1199 case _DRM_STAT_PRIMARY:
1200 stats->data[i].long_name = "Primary Bytes";
1201 stats->data[i].rate_name = "PB/s";
1204 case _DRM_STAT_SECONDARY:
1205 stats->data[i].long_name = "Secondary Bytes";
1206 stats->data[i].rate_name = "SB/s";
1210 stats->data[i].long_name = "DMA";
1211 stats->data[i].rate_name = "DMA/s";
1214 case _DRM_STAT_SPECIAL:
1215 stats->data[i].long_name = "Special DMA";
1216 stats->data[i].rate_name = "dma/s";
1219 case _DRM_STAT_MISSED:
1220 stats->data[i].long_name = "Miss";
1221 stats->data[i].rate_name = "Ms/s";
1224 case _DRM_STAT_VALUE:
1225 stats->data[i].long_name = "Value";
1226 stats->data[i].rate_name = "Value";
1229 case _DRM_STAT_BYTE:
1230 stats->data[i].long_name = "Bytes";
1231 stats->data[i].rate_name = "B/s";
1234 case _DRM_STAT_COUNT:
1236 stats->data[i].long_name = "Count";
1237 stats->data[i].rate_name = "Cnt/s";
1245 #if defined(XFree86Server) || defined(DRM_USE_MALLOC)
1246 static void drmSIGIOHandler(int interrupt, void *closure)
1252 typedef void (*_drmCallback)(int, void *, void *);
1259 drmHashEntry *entry;
1261 if (!drmHashTable) return;
1262 if (drmHashFirst(drmHashTable, &key, &value)) {
1266 fprintf(stderr, "Trying %d\n", entry->fd);
1268 if ((count = read(entry->fd, buf, sizeof(buf)))) {
1271 fprintf(stderr, "Got %s\n", buf);
1274 for (pt = buf; *pt != ' '; ++pt); /* Find first space */
1276 old = strtol(pt, &pt, 0);
1277 new = strtol(pt, NULL, 0);
1278 oldctx = drmGetContextTag(entry->fd, old);
1279 newctx = drmGetContextTag(entry->fd, new);
1281 fprintf(stderr, "%d %d %p %p\n", old, new, oldctx, newctx);
1283 ((_drmCallback)entry->f)(entry->fd, oldctx, newctx);
1285 ioctl(entry->fd, DRM_IOCTL_NEW_CTX, &ctx);
1287 } while (drmHashNext(drmHashTable, &key, &value));
1291 int drmInstallSIGIOHandler(int fd, void (*f)(int, void *, void *))
1293 drmHashEntry *entry;
1295 entry = drmGetEntry(fd);
1298 return xf86InstallSIGIOHandler(fd, drmSIGIOHandler, 0);
1301 int drmRemoveSIGIOHandler(int fd)
1303 drmHashEntry *entry = drmGetEntry(fd);
1307 return xf86RemoveSIGIOHandler(fd);