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-rw-r--r--freedreno/freedreno_device.c145
1 files changed, 145 insertions, 0 deletions
diff --git a/freedreno/freedreno_device.c b/freedreno/freedreno_device.c
new file mode 100644
index 0000000..ac23430
--- /dev/null
+++ b/freedreno/freedreno_device.c
@@ -0,0 +1,145 @@
+/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
+
+/*
+ * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Authors:
+ * Rob Clark <robclark@freedesktop.org>
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "freedreno_drmif.h"
+#include "freedreno_priv.h"
+
+static pthread_mutex_t table_lock = PTHREAD_MUTEX_INITIALIZER;
+
+struct fd_device * kgsl_device_new(int fd);
+struct fd_device * msm_device_new(int fd);
+
+drm_public struct fd_device * fd_device_new(int fd)
+{
+ struct fd_device *dev;
+ drmVersionPtr version;
+
+ /* figure out if we are kgsl or msm drm driver: */
+ version = drmGetVersion(fd);
+ if (!version) {
+ ERROR_MSG("cannot get version: %s", strerror(errno));
+ return NULL;
+ }
+
+ if (!strcmp(version->name, "msm")) {
+ DEBUG_MSG("msm DRM device");
+ if (version->version_major != 1) {
+ ERROR_MSG("unsupported version: %u.%u.%u", version->version_major,
+ version->version_minor, version->version_patchlevel);
+ dev = NULL;
+ goto out;
+ }
+
+ dev = msm_device_new(fd);
+ dev->version = version->version_minor;
+#if HAVE_FREEDRENO_KGSL
+ } else if (!strcmp(version->name, "kgsl")) {
+ DEBUG_MSG("kgsl DRM device");
+ dev = kgsl_device_new(fd);
+#endif
+ } else {
+ ERROR_MSG("unknown device: %s", version->name);
+ dev = NULL;
+ }
+
+out:
+ drmFreeVersion(version);
+
+ if (!dev)
+ return NULL;
+
+ atomic_set(&dev->refcnt, 1);
+ dev->fd = fd;
+ dev->handle_table = drmHashCreate();
+ dev->name_table = drmHashCreate();
+ fd_bo_cache_init(&dev->bo_cache, FALSE);
+ fd_bo_cache_init(&dev->ring_cache, TRUE);
+
+ return dev;
+}
+
+/* like fd_device_new() but creates it's own private dup() of the fd
+ * which is close()d when the device is finalized.
+ */
+drm_public struct fd_device * fd_device_new_dup(int fd)
+{
+ int dup_fd = dup(fd);
+ struct fd_device *dev = fd_device_new(dup_fd);
+ if (dev)
+ dev->closefd = 1;
+ else
+ close(dup_fd);
+ return dev;
+}
+
+drm_public struct fd_device * fd_device_ref(struct fd_device *dev)
+{
+ atomic_inc(&dev->refcnt);
+ return dev;
+}
+
+static void fd_device_del_impl(struct fd_device *dev)
+{
+ int close_fd = dev->closefd ? dev->fd : -1;
+ fd_bo_cache_cleanup(&dev->bo_cache, 0);
+ drmHashDestroy(dev->handle_table);
+ drmHashDestroy(dev->name_table);
+ dev->funcs->destroy(dev);
+ if (close_fd >= 0)
+ close(close_fd);
+}
+
+drm_private void fd_device_del_locked(struct fd_device *dev)
+{
+ if (!atomic_dec_and_test(&dev->refcnt))
+ return;
+ fd_device_del_impl(dev);
+}
+
+drm_public void fd_device_del(struct fd_device *dev)
+{
+ if (!atomic_dec_and_test(&dev->refcnt))
+ return;
+ pthread_mutex_lock(&table_lock);
+ fd_device_del_impl(dev);
+ pthread_mutex_unlock(&table_lock);
+}
+
+drm_public int fd_device_fd(struct fd_device *dev)
+{
+ return dev->fd;
+}
+
+drm_public enum fd_version fd_device_version(struct fd_device *dev)
+{
+ return dev->version;
+}