freedreno: move drm to common location

So that we can re-use at least parts of it for vulkan driver, and so
that we can move ir3 to a common location (which uses fd_bo to allocate
storage for shaders)

Signed-off-by: Rob Clark <[email protected]>

1 files changed, 156 insertions, 0 deletions

diff --git a/src/freedreno/drm/freedreno_device.c b/src/freedreno/drm/freedreno_device.c
new file mode 100644
index 00000000000..b2f6c981963
--- /dev/null
+++ b/src/freedreno/drm/freedreno_device.c
@@ -0,0 +1,156 @@
+/*
+ * Copyright (C) 2012-2018 Rob Clark <[email protected]>
+ *
+ * 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 <[email protected]>
+ */
+
+#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;
+
+static uint32_t
+u32_hash(const void *key)
+{
+	return _mesa_hash_data(key, sizeof(uint32_t));
+}
+
+static bool
+u32_equals(const void *key1, const void *key2)
+{
+	return *(const uint32_t *)key1 == *(const uint32_t *)key2;
+}
+
+
+struct fd_device * kgsl_device_new(int fd);
+struct fd_device * msm_device_new(int fd);
+
+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;
+
+	p_atomic_set(&dev->refcnt, 1);
+	dev->fd = fd;
+	dev->handle_table = _mesa_hash_table_create(NULL, u32_hash, u32_equals);
+	dev->name_table = _mesa_hash_table_create(NULL, u32_hash, u32_equals);
+	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.
+ */
+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;
+}
+
+struct fd_device * fd_device_ref(struct fd_device *dev)
+{
+	p_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);
+	_mesa_hash_table_destroy(dev->handle_table, NULL);
+	_mesa_hash_table_destroy(dev->name_table, NULL);
+	dev->funcs->destroy(dev);
+	if (close_fd >= 0)
+		close(close_fd);
+}
+
+void fd_device_del_locked(struct fd_device *dev)
+{
+	if (!atomic_dec_and_test(&dev->refcnt))
+		return;
+	fd_device_del_impl(dev);
+}
+
+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);
+}
+
+int fd_device_fd(struct fd_device *dev)
+{
+	return dev->fd;
+}
+
+enum fd_version fd_device_version(struct fd_device *dev)
+{
+	return dev->version;
+}