Move libdrm/ up one level

1 files changed, 194 insertions, 0 deletions

diff --git a/nouveau/nouveau_device.c b/nouveau/nouveau_device.c
new file mode 100644
index 00000000..0982d3b6
--- /dev/null
+++ b/nouveau/nouveau_device.c
@@ -0,0 +1,194 @@
+/*
+ * Copyright 2007 Nouveau Project
+ *
+ * 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 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 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.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+
+#include "nouveau_private.h"
+
+#if NOUVEAU_DRM_HEADER_PATCHLEVEL != 15
+#error nouveau_drm.h does not match expected patchlevel, update libdrm.
+#endif
+
+int
+nouveau_device_open_existing(struct nouveau_device **dev, int close,
+			     int fd, drm_context_t ctx)
+{
+	struct nouveau_device_priv *nvdev;
+	drmVersionPtr ver;
+	uint64_t value;
+	int ret;
+
+	if (!dev || *dev)
+	    return -EINVAL;
+
+	ver = drmGetVersion(fd);
+	if (!ver || ver->version_patchlevel != NOUVEAU_DRM_HEADER_PATCHLEVEL)
+		return -EINVAL;
+	drmFreeVersion(ver);
+
+	nvdev = calloc(1, sizeof(*nvdev));
+	if (!nvdev)
+	    return -ENOMEM;
+	nvdev->fd = fd;
+	nvdev->ctx = ctx;
+	nvdev->needs_close = close;
+
+	ret = drmCommandNone(nvdev->fd, DRM_NOUVEAU_CARD_INIT);
+	if (ret) {
+		nouveau_device_close((void *)&nvdev);
+		return ret;
+	}
+
+	ret = nouveau_device_get_param(&nvdev->base,
+				       NOUVEAU_GETPARAM_VM_VRAM_BASE, &value);
+	if (ret) {
+		nouveau_device_close((void *)&nvdev);
+		return ret;
+	}
+	nvdev->base.vm_vram_base = value;
+
+	ret = nouveau_device_get_param(&nvdev->base,
+				       NOUVEAU_GETPARAM_FB_SIZE, &value);
+	if (ret) {
+		nouveau_device_close((void *)&nvdev);
+		return ret;
+	}
+	nvdev->base.vm_vram_size = value;
+
+	ret = nouveau_device_get_param(&nvdev->base,
+				       NOUVEAU_GETPARAM_AGP_SIZE, &value);
+	if (ret) {
+		nouveau_device_close((void *)&nvdev);
+		return ret;
+	}
+	nvdev->base.vm_gart_size = value;
+
+	ret = nouveau_bo_init(&nvdev->base);
+	if (ret) {
+		nouveau_device_close((void *)&nvdev);
+		return ret;
+	}
+
+	ret = nouveau_device_get_param(&nvdev->base,
+				       NOUVEAU_GETPARAM_CHIPSET_ID, &value);
+	if (ret) {
+		nouveau_device_close((void *)&nvdev);
+		return ret;
+	}
+	nvdev->base.chipset = value;
+
+	*dev = &nvdev->base;
+	return 0;
+}
+
+int
+nouveau_device_open(struct nouveau_device **dev, const char *busid)
+{
+	drm_context_t ctx;
+	int fd, ret;
+
+	if (!dev || *dev)
+		return -EINVAL;
+
+	fd = drmOpen("nouveau", busid);
+	if (fd < 0)
+		return -EINVAL;
+
+	ret = drmCreateContext(fd, &ctx);
+	if (ret) {
+		drmClose(fd);
+		return ret;
+	}
+
+	ret = nouveau_device_open_existing(dev, 1, fd, ctx);
+	if (ret) {
+	    drmDestroyContext(fd, ctx);
+	    drmClose(fd);
+	    return ret;
+	}
+
+	return 0;
+}
+
+void
+nouveau_device_close(struct nouveau_device **dev)
+{
+	struct nouveau_device_priv *nvdev;
+
+	if (!dev || !*dev)
+		return;
+	nvdev = nouveau_device(*dev);
+	*dev = NULL;
+
+	nouveau_bo_takedown(&nvdev->base);
+
+	if (nvdev->needs_close) {
+		drmDestroyContext(nvdev->fd, nvdev->ctx);
+		drmClose(nvdev->fd);
+	}
+	free(nvdev);
+}
+
+int
+nouveau_device_get_param(struct nouveau_device *dev,
+			 uint64_t param, uint64_t *value)
+{
+	struct nouveau_device_priv *nvdev = nouveau_device(dev);
+	struct drm_nouveau_getparam g;
+	int ret;
+
+	if (!nvdev || !value)
+		return -EINVAL;
+
+	g.param = param;
+	ret = drmCommandWriteRead(nvdev->fd, DRM_NOUVEAU_GETPARAM,
+				  &g, sizeof(g));
+	if (ret)
+		return ret;
+
+	*value = g.value;
+	return 0;
+}
+
+int
+nouveau_device_set_param(struct nouveau_device *dev,
+			 uint64_t param, uint64_t value)
+{
+	struct nouveau_device_priv *nvdev = nouveau_device(dev);
+	struct drm_nouveau_setparam s;
+	int ret;
+
+	if (!nvdev)
+		return -EINVAL;
+
+	s.param = param;
+	s.value = value;
+	ret = drmCommandWriteRead(nvdev->fd, DRM_NOUVEAU_SETPARAM,
+				  &s, sizeof(s));
+	if (ret)
+		return ret;
+
+	return 0;
+}
+