* Call ioctl, restarting if it is interupted
*/
static int
-drmIoctl(int fd, int request, void *arg)
+drmIoctl(int fd, unsigned long request, void *arg)
{
int ret;
group = (serv_group >= 0) ? serv_group : DRM_DEV_GID;
}
+#if !defined(UDEV)
if (stat(DRM_DIR_NAME, &st)) {
if (!isroot)
return DRM_ERR_NOT_ROOT;
chown(buf, user, group);
chmod(buf, devmode);
}
+#else
+ /* if we modprobed then wait for udev */
+ {
+ int udev_count = 0;
+wait_for_udev:
+ if (stat(DRM_DIR_NAME, &st)) {
+ usleep(20);
+ udev_count++;
+
+ if (udev_count == 50)
+ return -1;
+ goto wait_for_udev;
+ }
+
+ if (stat(buf, &st)) {
+ usleep(20);
+ udev_count++;
+
+ if (udev_count == 50)
+ return -1;
+ goto wait_for_udev;
+ }
+ }
+#endif
fd = open(buf, O_RDWR, 0);
drmMsg("drmOpenDevice: open result is %d, (%s)\n",
return 0;
}
-
-/*
- * Valid flags are
- * DRM_FENCE_FLAG_EMIT
- * DRM_FENCE_FLAG_SHAREABLE
- * DRM_FENCE_MASK_DRIVER
- */
-
-int drmFenceCreate(int fd, unsigned flags, int fence_class, unsigned type,
- drmFence *fence)
-{
- drm_fence_arg_t arg;
-
- memset(&arg, 0, sizeof(arg));
- arg.flags = flags;
- arg.type = type;
- arg.fence_class = fence_class;
-
- if (drmIoctl(fd, DRM_IOCTL_FENCE_CREATE, &arg))
- return -errno;
- fence->handle = arg.handle;
- fence->fence_class = arg.fence_class;
- fence->type = arg.type;
- fence->flags = arg.flags;
- fence->signaled = 0;
- return 0;
-}
-
-/*
- * Valid flags are
- * DRM_FENCE_FLAG_SHAREABLE
- * DRM_FENCE_MASK_DRIVER
- */
-
-int drmFenceBuffers(int fd, unsigned flags, uint32_t fence_class, drmFence *fence)
-{
- drm_fence_arg_t arg;
-
- memset(&arg, 0, sizeof(arg));
- arg.flags = flags;
- arg.fence_class = fence_class;
-
- if (drmIoctl(fd, DRM_IOCTL_FENCE_BUFFERS, &arg))
- return -errno;
- fence->handle = arg.handle;
- fence->fence_class = arg.fence_class;
- fence->type = arg.type;
- fence->flags = arg.flags;
- fence->sequence = arg.sequence;
- fence->signaled = 0;
- return 0;
-}
-
-int drmFenceReference(int fd, unsigned handle, drmFence *fence)
-{
- drm_fence_arg_t arg;
-
- memset(&arg, 0, sizeof(arg));
- arg.handle = handle;
-
- if (drmIoctl(fd, DRM_IOCTL_FENCE_REFERENCE, &arg))
- return -errno;
- fence->handle = arg.handle;
- fence->fence_class = arg.fence_class;
- fence->type = arg.type;
- fence->flags = arg.flags;
- fence->signaled = arg.signaled;
- return 0;
-}
-
-int drmFenceUnreference(int fd, const drmFence *fence)
-{
- drm_fence_arg_t arg;
-
- memset(&arg, 0, sizeof(arg));
- arg.handle = fence->handle;
-
- if (drmIoctl(fd, DRM_IOCTL_FENCE_UNREFERENCE, &arg))
- return -errno;
- return 0;
-}
-
-int drmFenceFlush(int fd, drmFence *fence, unsigned flush_type)
-{
- drm_fence_arg_t arg;
-
- memset(&arg, 0, sizeof(arg));
- arg.handle = fence->handle;
- arg.type = flush_type;
-
- if (drmIoctl(fd, DRM_IOCTL_FENCE_FLUSH, &arg))
- return -errno;
- fence->fence_class = arg.fence_class;
- fence->type = arg.type;
- fence->signaled = arg.signaled;
- return arg.error;
-}
-
-int drmFenceUpdate(int fd, drmFence *fence)
-{
- drm_fence_arg_t arg;
-
- memset(&arg, 0, sizeof(arg));
- arg.handle = fence->handle;
-
- if (drmIoctl(fd, DRM_IOCTL_FENCE_SIGNALED, &arg))
- return -errno;
- fence->fence_class = arg.fence_class;
- fence->type = arg.type;
- fence->signaled = arg.signaled;
- return 0;
-}
-
-int drmFenceSignaled(int fd, drmFence *fence, unsigned fenceType,
- int *signaled)
-{
- if ((fence->flags & DRM_FENCE_FLAG_SHAREABLE) ||
- ((fenceType & fence->signaled) != fenceType)) {
- int ret = drmFenceFlush(fd, fence, fenceType);
- if (ret)
- return ret;
- }
-
- *signaled = ((fenceType & fence->signaled) == fenceType);
-
- return 0;
-}
-
-/*
- * Valid flags are
- * DRM_FENCE_FLAG_SHAREABLE
- * DRM_FENCE_MASK_DRIVER
- */
-
-
-int drmFenceEmit(int fd, unsigned flags, drmFence *fence, unsigned emit_type)
-{
- drm_fence_arg_t arg;
-
- memset(&arg, 0, sizeof(arg));
- arg.fence_class = fence->fence_class;
- arg.flags = flags;
- arg.handle = fence->handle;
- arg.type = emit_type;
-
- if (drmIoctl(fd, DRM_IOCTL_FENCE_EMIT, &arg))
- return -errno;
- fence->fence_class = arg.fence_class;
- fence->type = arg.type;
- fence->signaled = arg.signaled;
- fence->sequence = arg.sequence;
- return 0;
-}
-
-/*
- * Valid flags are
- * DRM_FENCE_FLAG_WAIT_LAZY
- * DRM_FENCE_FLAG_WAIT_IGNORE_SIGNALS
- */
-
-#define DRM_IOCTL_TIMEOUT_USEC 3000000UL
-
-static unsigned long
-drmTimeDiff(struct timeval *now, struct timeval *then)
-{
- uint64_t val;
-
- val = now->tv_sec - then->tv_sec;
- val *= 1000000LL;
- val += now->tv_usec;
- val -= then->tv_usec;
-
- return (unsigned long) val;
-}
-
-static int
-drmIoctlTimeout(int fd, unsigned long request, void *argp)
-{
- int haveThen = 0;
- struct timeval then, now;
- int ret;
-
- do {
- ret = drmIoctl(fd, request, argp);
- if (ret != 0 && errno == EAGAIN) {
- if (!haveThen) {
- gettimeofday(&then, NULL);
- haveThen = 1;
- }
- gettimeofday(&now, NULL);
- }
- } while (ret != 0 && errno == EAGAIN &&
- drmTimeDiff(&now, &then) < DRM_IOCTL_TIMEOUT_USEC);
-
- if (ret != 0)
- return ((errno == EAGAIN) ? -EBUSY : -errno);
-
- return 0;
-}
-
-
-
-
-int drmFenceWait(int fd, unsigned flags, drmFence *fence, unsigned flush_type)
-{
- drm_fence_arg_t arg;
- int ret;
-
- if (flush_type == 0) {
- flush_type = fence->type;
- }
-
- if (!(fence->flags & DRM_FENCE_FLAG_SHAREABLE)) {
- if ((flush_type & fence->signaled) == flush_type) {
- return 0;
- }
- }
-
- memset(&arg, 0, sizeof(arg));
- arg.handle = fence->handle;
- arg.type = flush_type;
- arg.flags = flags;
-
-
- ret = drmIoctlTimeout(fd, DRM_IOCTL_FENCE_WAIT, &arg);
- if (ret)
- return ret;
-
- fence->fence_class = arg.fence_class;
- fence->type = arg.type;
- fence->signaled = arg.signaled;
- return arg.error;
-}
-
-static void drmBOCopyReply(const struct drm_bo_info_rep *rep, drmBO *buf)
-{
- buf->handle = rep->handle;
- buf->flags = rep->flags;
- buf->size = rep->size;
- buf->offset = rep->offset;
- buf->mapHandle = rep->arg_handle;
- buf->proposedFlags = rep->proposed_flags;
- buf->start = rep->buffer_start;
- buf->fenceFlags = rep->fence_flags;
- buf->replyFlags = rep->rep_flags;
- buf->pageAlignment = rep->page_alignment;
- buf->tileInfo = rep->tile_info;
- buf->hwTileStride = rep->hw_tile_stride;
- buf->desiredTileStride = rep->desired_tile_stride;
-}
-
-
-
-int drmBOCreate(int fd, unsigned long size,
- unsigned pageAlignment, void *user_buffer,
- uint64_t flags,
- unsigned hint, drmBO *buf)
-{
- struct drm_bo_create_arg arg;
- struct drm_bo_create_req *req = &arg.d.req;
- struct drm_bo_info_rep *rep = &arg.d.rep;
- int ret;
-
- memset(buf, 0, sizeof(*buf));
- memset(&arg, 0, sizeof(arg));
- req->flags = flags;
- req->hint = hint;
- req->size = size;
- req->page_alignment = pageAlignment;
- req->buffer_start = (unsigned long) user_buffer;
-
- buf->virtual = NULL;
-
- ret = drmIoctlTimeout(fd, DRM_IOCTL_BO_CREATE, &arg);
- if (ret)
- return ret;
-
- drmBOCopyReply(rep, buf);
- buf->virtual = user_buffer;
- buf->mapCount = 0;
-
- return 0;
-}
-
-int drmBOReference(int fd, unsigned handle, drmBO *buf)
-{
- struct drm_bo_reference_info_arg arg;
- struct drm_bo_handle_arg *req = &arg.d.req;
- struct drm_bo_info_rep *rep = &arg.d.rep;
-
- memset(&arg, 0, sizeof(arg));
- req->handle = handle;
-
- if (drmIoctl(fd, DRM_IOCTL_BO_REFERENCE, &arg))
- return -errno;
-
- drmBOCopyReply(rep, buf);
- buf->mapVirtual = NULL;
- buf->mapCount = 0;
- buf->virtual = NULL;
-
- return 0;
-}
-
-int drmBOUnreference(int fd, drmBO *buf)
-{
- struct drm_bo_handle_arg arg;
-
- if (buf->mapVirtual && buf->mapHandle) {
- (void) munmap(buf->mapVirtual, buf->start + buf->size);
- buf->mapVirtual = NULL;
- buf->virtual = NULL;
- }
-
- memset(&arg, 0, sizeof(arg));
- arg.handle = buf->handle;
-
- if (drmIoctl(fd, DRM_IOCTL_BO_UNREFERENCE, &arg))
- return -errno;
-
- buf->handle = 0;
- return 0;
-}
-
-
-/*
- * Flags can be DRM_BO_FLAG_READ, DRM_BO_FLAG_WRITE or'ed together
- * Hint currently be DRM_BO_HINT_DONT_BLOCK, which makes the
- * call return an -EBUSY if it can' immediately honor the mapping request.
- */
-
-int drmBOMap(int fd, drmBO *buf, unsigned mapFlags, unsigned mapHint,
- void **address)
-{
- struct drm_bo_map_wait_idle_arg arg;
- struct drm_bo_info_req *req = &arg.d.req;
- struct drm_bo_info_rep *rep = &arg.d.rep;
- int ret = 0;
-
- /*
- * Make sure we have a virtual address of the buffer.
- */
-
- if (!buf->virtual) {
- drmAddress virtual;
- virtual = mmap(0, buf->size + buf->start,
- PROT_READ | PROT_WRITE, MAP_SHARED,
- fd, buf->mapHandle);
- if (virtual == MAP_FAILED) {
- ret = -errno;
- }
- if (ret)
- return ret;
- buf->mapVirtual = virtual;
- buf->virtual = ((char *) virtual) + buf->start;
- }
-
- memset(&arg, 0, sizeof(arg));
- req->handle = buf->handle;
- req->mask = mapFlags;
- req->hint = mapHint;
-
- /*
- * May hang if the buffer object is busy.
- * This IOCTL synchronizes the buffer.
- */
-
- ret = drmIoctlTimeout(fd, DRM_IOCTL_BO_MAP, &arg);
- if (ret)
- return ret;
-
- drmBOCopyReply(rep, buf);
- buf->mapFlags = mapFlags;
- ++buf->mapCount;
- *address = buf->virtual;
-
- return 0;
-}
-
-
-int drmBOUnmap(int fd, drmBO *buf)
-{
- struct drm_bo_handle_arg arg;
-
- memset(&arg, 0, sizeof(arg));
- arg.handle = buf->handle;
-
- if (drmIoctl(fd, DRM_IOCTL_BO_UNMAP, &arg)) {
- return -errno;
- }
- buf->mapCount--;
- return 0;
-}
-
-int drmBOSetStatus(int fd, drmBO *buf,
- uint64_t flags, uint64_t mask,
- unsigned int hint,
- unsigned int desired_tile_stride,
- unsigned int tile_info)
-{
-
- struct drm_bo_map_wait_idle_arg arg;
- struct drm_bo_info_req *req = &arg.d.req;
- struct drm_bo_info_rep *rep = &arg.d.rep;
- int ret = 0;
-
- memset(&arg, 0, sizeof(arg));
- req->mask = mask;
- req->flags = flags;
- req->handle = buf->handle;
- req->hint = hint;
- req->desired_tile_stride = desired_tile_stride;
- req->tile_info = tile_info;
-
- ret = drmIoctlTimeout(fd, DRM_IOCTL_BO_SETSTATUS, &arg);
- if (ret)
- return ret;
-
- drmBOCopyReply(rep, buf);
- return 0;
-}
-
-
-int drmBOInfo(int fd, drmBO *buf)
-{
- struct drm_bo_reference_info_arg arg;
- struct drm_bo_handle_arg *req = &arg.d.req;
- struct drm_bo_info_rep *rep = &arg.d.rep;
- int ret = 0;
-
- memset(&arg, 0, sizeof(arg));
- req->handle = buf->handle;
-
- ret = drmIoctl(fd, DRM_IOCTL_BO_INFO, &arg);
- if (ret)
- return -errno;
-
- drmBOCopyReply(rep, buf);
- return 0;
-}
-
-int drmBOWaitIdle(int fd, drmBO *buf, unsigned hint)
-{
- struct drm_bo_map_wait_idle_arg arg;
- struct drm_bo_info_req *req = &arg.d.req;
- struct drm_bo_info_rep *rep = &arg.d.rep;
- int ret = 0;
-
- if ((buf->flags & DRM_BO_FLAG_SHAREABLE) ||
- (buf->replyFlags & DRM_BO_REP_BUSY)) {
- memset(&arg, 0, sizeof(arg));
- req->handle = buf->handle;
- req->hint = hint;
-
- ret = drmIoctlTimeout(fd, DRM_IOCTL_BO_WAIT_IDLE, &arg);
- if (ret)
- return ret;
-
- drmBOCopyReply(rep, buf);
- }
- return 0;
-}
-
-int drmBOBusy(int fd, drmBO *buf, int *busy)
-{
- int ret = drmBOInfo(fd, buf);
-
- if (ret)
- return ret;
-
- *busy = (buf->replyFlags & DRM_BO_REP_BUSY);
- return 0;
-}
-
-int drmMMInit(int fd, unsigned long pOffset, unsigned long pSize,
- unsigned memType)
-{
- struct drm_mm_init_arg arg;
-
- memset(&arg, 0, sizeof(arg));
-
- arg.magic = DRM_BO_INIT_MAGIC;
- arg.major = DRM_BO_INIT_MAJOR;
- arg.minor = DRM_BO_INIT_MINOR;
- arg.p_offset = pOffset;
- arg.p_size = pSize;
- arg.mem_type = memType;
-
- if (drmIoctl(fd, DRM_IOCTL_MM_INIT, &arg))
- return -errno;
- return 0;
-}
-
-int drmMMTakedown(int fd, unsigned memType)
-{
- struct drm_mm_type_arg arg;
-
- memset(&arg, 0, sizeof(arg));
- arg.mem_type = memType;
-
- if (drmIoctl(fd, DRM_IOCTL_MM_TAKEDOWN, &arg))
- return -errno;
- return 0;
-}
-
-/*
- * If this function returns an error, and lockBM was set to 1,
- * the buffer manager is NOT locked.
- */
-
-int drmMMLock(int fd, unsigned memType, int lockBM, int ignoreNoEvict)
-{
- struct drm_mm_type_arg arg;
-
- memset(&arg, 0, sizeof(arg));
- arg.mem_type = memType;
- arg.lock_flags |= (lockBM) ? DRM_BO_LOCK_UNLOCK_BM : 0;
- arg.lock_flags |= (ignoreNoEvict) ? DRM_BO_LOCK_IGNORE_NO_EVICT : 0;
-
- return drmIoctlTimeout(fd, DRM_IOCTL_MM_LOCK, &arg);
-}
-
-int drmMMUnlock(int fd, unsigned memType, int unlockBM)
-{
- struct drm_mm_type_arg arg;
-
- memset(&arg, 0, sizeof(arg));
-
- arg.mem_type = memType;
- arg.lock_flags |= (unlockBM) ? DRM_BO_LOCK_UNLOCK_BM : 0;
-
- return drmIoctlTimeout(fd, DRM_IOCTL_MM_UNLOCK, &arg);
-}
-
-int drmMMInfo(int fd, unsigned memType, uint64_t *size)
-{
- struct drm_mm_info_arg arg;
-
- memset(&arg, 0, sizeof(arg));
-
- arg.mem_type = memType;
-
- if (drmIoctl(fd, DRM_IOCTL_MM_INFO, &arg))
- return -errno;
-
- *size = arg.p_size;
- return 0;
-}
-
-int drmBOVersion(int fd, unsigned int *major,
- unsigned int *minor,
- unsigned int *patchlevel)
-{
- struct drm_bo_version_arg arg;
- int ret;
-
- memset(&arg, 0, sizeof(arg));
- ret = drmIoctl(fd, DRM_IOCTL_BO_VERSION, &arg);
- if (ret)
- return -errno;
-
- if (major)
- *major = arg.major;
- if (minor)
- *minor = arg.minor;
- if (patchlevel)
- *patchlevel = arg.patchlevel;
-
- return 0;
-}
-
-
-
#define DRM_MAX_FDS 16
static struct {
char *BusID;
projects / profile / ivi / libdrm.git / blobdiff