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path: root/drivers/gpu/drm/radeon/radeon_gem.c
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Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_gem.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_gem.c287
1 files changed, 287 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c
new file mode 100644
index 00000000000..eb516034235
--- /dev/null
+++ b/drivers/gpu/drm/radeon/radeon_gem.c
@@ -0,0 +1,287 @@
+/*
+ * Copyright 2008 Advanced Micro Devices, Inc.
+ * Copyright 2008 Red Hat Inc.
+ * Copyright 2009 Jerome Glisse.
+ *
+ * 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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: Dave Airlie
+ * Alex Deucher
+ * Jerome Glisse
+ */
+#include "drmP.h"
+#include "drm.h"
+#include "radeon_drm.h"
+#include "radeon.h"
+
+int radeon_gem_object_init(struct drm_gem_object *obj)
+{
+ /* we do nothings here */
+ return 0;
+}
+
+void radeon_gem_object_free(struct drm_gem_object *gobj)
+{
+ struct radeon_object *robj = gobj->driver_private;
+
+ gobj->driver_private = NULL;
+ if (robj) {
+ radeon_object_unref(&robj);
+ }
+}
+
+int radeon_gem_object_create(struct radeon_device *rdev, int size,
+ int alignment, int initial_domain,
+ bool discardable, bool kernel,
+ bool interruptible,
+ struct drm_gem_object **obj)
+{
+ struct drm_gem_object *gobj;
+ struct radeon_object *robj;
+ int r;
+
+ *obj = NULL;
+ gobj = drm_gem_object_alloc(rdev->ddev, size);
+ if (!gobj) {
+ return -ENOMEM;
+ }
+ /* At least align on page size */
+ if (alignment < PAGE_SIZE) {
+ alignment = PAGE_SIZE;
+ }
+ r = radeon_object_create(rdev, gobj, size, kernel, initial_domain,
+ interruptible, &robj);
+ if (r) {
+ DRM_ERROR("Failed to allocate GEM object (%d, %d, %u)\n",
+ size, initial_domain, alignment);
+ mutex_lock(&rdev->ddev->struct_mutex);
+ drm_gem_object_unreference(gobj);
+ mutex_unlock(&rdev->ddev->struct_mutex);
+ return r;
+ }
+ gobj->driver_private = robj;
+ *obj = gobj;
+ return 0;
+}
+
+int radeon_gem_object_pin(struct drm_gem_object *obj, uint32_t pin_domain,
+ uint64_t *gpu_addr)
+{
+ struct radeon_object *robj = obj->driver_private;
+ uint32_t flags;
+
+ switch (pin_domain) {
+ case RADEON_GEM_DOMAIN_VRAM:
+ flags = TTM_PL_FLAG_VRAM;
+ break;
+ case RADEON_GEM_DOMAIN_GTT:
+ flags = TTM_PL_FLAG_TT;
+ break;
+ default:
+ flags = TTM_PL_FLAG_SYSTEM;
+ break;
+ }
+ return radeon_object_pin(robj, flags, gpu_addr);
+}
+
+void radeon_gem_object_unpin(struct drm_gem_object *obj)
+{
+ struct radeon_object *robj = obj->driver_private;
+ radeon_object_unpin(robj);
+}
+
+int radeon_gem_set_domain(struct drm_gem_object *gobj,
+ uint32_t rdomain, uint32_t wdomain)
+{
+ struct radeon_object *robj;
+ uint32_t domain;
+ int r;
+
+ /* FIXME: reeimplement */
+ robj = gobj->driver_private;
+ /* work out where to validate the buffer to */
+ domain = wdomain;
+ if (!domain) {
+ domain = rdomain;
+ }
+ if (!domain) {
+ /* Do nothings */
+ printk(KERN_WARNING "Set domain withou domain !\n");
+ return 0;
+ }
+ if (domain == RADEON_GEM_DOMAIN_CPU) {
+ /* Asking for cpu access wait for object idle */
+ r = radeon_object_wait(robj);
+ if (r) {
+ printk(KERN_ERR "Failed to wait for object !\n");
+ return r;
+ }
+ }
+ return 0;
+}
+
+int radeon_gem_init(struct radeon_device *rdev)
+{
+ INIT_LIST_HEAD(&rdev->gem.objects);
+ return 0;
+}
+
+void radeon_gem_fini(struct radeon_device *rdev)
+{
+ radeon_object_force_delete(rdev);
+}
+
+
+/*
+ * GEM ioctls.
+ */
+int radeon_gem_info_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *filp)
+{
+ struct radeon_device *rdev = dev->dev_private;
+ struct drm_radeon_gem_info *args = data;
+
+ args->vram_size = rdev->mc.vram_size;
+ /* FIXME: report somethings that makes sense */
+ args->vram_visible = rdev->mc.vram_size - (4 * 1024 * 1024);
+ args->gart_size = rdev->mc.gtt_size;
+ return 0;
+}
+
+int radeon_gem_pread_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *filp)
+{
+ /* TODO: implement */
+ DRM_ERROR("unimplemented %s\n", __func__);
+ return -ENOSYS;
+}
+
+int radeon_gem_pwrite_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *filp)
+{
+ /* TODO: implement */
+ DRM_ERROR("unimplemented %s\n", __func__);
+ return -ENOSYS;
+}
+
+int radeon_gem_create_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *filp)
+{
+ struct radeon_device *rdev = dev->dev_private;
+ struct drm_radeon_gem_create *args = data;
+ struct drm_gem_object *gobj;
+ uint32_t handle;
+ int r;
+
+ /* create a gem object to contain this object in */
+ args->size = roundup(args->size, PAGE_SIZE);
+ r = radeon_gem_object_create(rdev, args->size, args->alignment,
+ args->initial_domain, false,
+ false, true, &gobj);
+ if (r) {
+ return r;
+ }
+ r = drm_gem_handle_create(filp, gobj, &handle);
+ if (r) {
+ mutex_lock(&dev->struct_mutex);
+ drm_gem_object_unreference(gobj);
+ mutex_unlock(&dev->struct_mutex);
+ return r;
+ }
+ mutex_lock(&dev->struct_mutex);
+ drm_gem_object_handle_unreference(gobj);
+ mutex_unlock(&dev->struct_mutex);
+ args->handle = handle;
+ return 0;
+}
+
+int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *filp)
+{
+ /* transition the BO to a domain -
+ * just validate the BO into a certain domain */
+ struct drm_radeon_gem_set_domain *args = data;
+ struct drm_gem_object *gobj;
+ struct radeon_object *robj;
+ int r;
+
+ /* for now if someone requests domain CPU -
+ * just make sure the buffer is finished with */
+
+ /* just do a BO wait for now */
+ gobj = drm_gem_object_lookup(dev, filp, args->handle);
+ if (gobj == NULL) {
+ return -EINVAL;
+ }
+ robj = gobj->driver_private;
+
+ r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain);
+
+ mutex_lock(&dev->struct_mutex);
+ drm_gem_object_unreference(gobj);
+ mutex_unlock(&dev->struct_mutex);
+ return r;
+}
+
+int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *filp)
+{
+ struct drm_radeon_gem_mmap *args = data;
+ struct drm_gem_object *gobj;
+ struct radeon_object *robj;
+ int r;
+
+ gobj = drm_gem_object_lookup(dev, filp, args->handle);
+ if (gobj == NULL) {
+ return -EINVAL;
+ }
+ robj = gobj->driver_private;
+ r = radeon_object_mmap(robj, &args->addr_ptr);
+ mutex_lock(&dev->struct_mutex);
+ drm_gem_object_unreference(gobj);
+ mutex_unlock(&dev->struct_mutex);
+ return r;
+}
+
+int radeon_gem_busy_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *filp)
+{
+ /* FIXME: implement */
+ return 0;
+}
+
+int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *filp)
+{
+ struct drm_radeon_gem_wait_idle *args = data;
+ struct drm_gem_object *gobj;
+ struct radeon_object *robj;
+ int r;
+
+ gobj = drm_gem_object_lookup(dev, filp, args->handle);
+ if (gobj == NULL) {
+ return -EINVAL;
+ }
+ robj = gobj->driver_private;
+ r = radeon_object_wait(robj);
+ mutex_lock(&dev->struct_mutex);
+ drm_gem_object_unreference(gobj);
+ mutex_unlock(&dev->struct_mutex);
+ return r;
+}