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path: root/drivers/gpu/drm/via/via_map.c
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Diffstat (limited to 'drivers/gpu/drm/via/via_map.c')
-rw-r--r--drivers/gpu/drm/via/via_map.c123
1 files changed, 123 insertions, 0 deletions
diff --git a/drivers/gpu/drm/via/via_map.c b/drivers/gpu/drm/via/via_map.c
new file mode 100644
index 0000000..a967556
--- /dev/null
+++ b/drivers/gpu/drm/via/via_map.c
@@ -0,0 +1,123 @@
+/*
+ * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
+ * Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
+ *
+ * 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, sub license,
+ * 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS 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 "drmP.h"
+#include "via_drm.h"
+#include "via_drv.h"
+
+static int via_do_init_map(struct drm_device * dev, drm_via_init_t * init)
+{
+ drm_via_private_t *dev_priv = dev->dev_private;
+
+ DRM_DEBUG("\n");
+
+ dev_priv->sarea = drm_getsarea(dev);
+ if (!dev_priv->sarea) {
+ DRM_ERROR("could not find sarea!\n");
+ dev->dev_private = (void *)dev_priv;
+ via_do_cleanup_map(dev);
+ return -EINVAL;
+ }
+
+ dev_priv->fb = drm_core_findmap(dev, init->fb_offset);
+ if (!dev_priv->fb) {
+ DRM_ERROR("could not find framebuffer!\n");
+ dev->dev_private = (void *)dev_priv;
+ via_do_cleanup_map(dev);
+ return -EINVAL;
+ }
+ dev_priv->mmio = drm_core_findmap(dev, init->mmio_offset);
+ if (!dev_priv->mmio) {
+ DRM_ERROR("could not find mmio region!\n");
+ dev->dev_private = (void *)dev_priv;
+ via_do_cleanup_map(dev);
+ return -EINVAL;
+ }
+
+ dev_priv->sarea_priv =
+ (drm_via_sarea_t *) ((u8 *) dev_priv->sarea->handle +
+ init->sarea_priv_offset);
+
+ dev_priv->agpAddr = init->agpAddr;
+
+ via_init_futex(dev_priv);
+
+ via_init_dmablit(dev);
+
+ dev->dev_private = (void *)dev_priv;
+ return 0;
+}
+
+int via_do_cleanup_map(struct drm_device * dev)
+{
+ via_dma_cleanup(dev);
+
+ return 0;
+}
+
+int via_map_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+ drm_via_init_t *init = data;
+
+ DRM_DEBUG("\n");
+
+ switch (init->func) {
+ case VIA_INIT_MAP:
+ return via_do_init_map(dev, init);
+ case VIA_CLEANUP_MAP:
+ return via_do_cleanup_map(dev);
+ }
+
+ return -EINVAL;
+}
+
+int via_driver_load(struct drm_device *dev, unsigned long chipset)
+{
+ drm_via_private_t *dev_priv;
+ int ret = 0;
+
+ dev_priv = drm_calloc(1, sizeof(drm_via_private_t), DRM_MEM_DRIVER);
+ if (dev_priv == NULL)
+ return -ENOMEM;
+
+ dev->dev_private = (void *)dev_priv;
+
+ dev_priv->chipset = chipset;
+
+ ret = drm_sman_init(&dev_priv->sman, 2, 12, 8);
+ if (ret) {
+ drm_free(dev_priv, sizeof(*dev_priv), DRM_MEM_DRIVER);
+ }
+ return ret;
+}
+
+int via_driver_unload(struct drm_device *dev)
+{
+ drm_via_private_t *dev_priv = dev->dev_private;
+
+ drm_sman_takedown(&dev_priv->sman);
+
+ drm_free(dev_priv, sizeof(drm_via_private_t), DRM_MEM_DRIVER);
+
+ return 0;
+}
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