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Diffstat (limited to 'linux-core')
-rw-r--r--linux-core/drm_crtc.c53
1 files changed, 29 insertions, 24 deletions
diff --git a/linux-core/drm_crtc.c b/linux-core/drm_crtc.c
index 0b71b134..fdf4c70e 100644
--- a/linux-core/drm_crtc.c
+++ b/linux-core/drm_crtc.c
@@ -163,12 +163,6 @@ struct drm_framebuffer *drm_framebuffer_create(struct drm_device *dev)
{
struct drm_framebuffer *fb;
- /* Limit to single framebuffer for now */
- if (dev->mode_config.num_fb > 1) {
- DRM_ERROR("Attempt to add multiple framebuffers failed\n");
- return NULL;
- }
-
fb = kzalloc(sizeof(struct drm_framebuffer), GFP_KERNEL);
if (!fb)
return NULL;
@@ -771,7 +765,11 @@ void drm_mode_config_init(struct drm_device *dev)
idr_init(&dev->mode_config.crtc_idr);
drm_mode_create_standard_output_properties(dev);
-
+
+ /* Just to be sure */
+ dev->mode_config.num_fb = 0;
+ dev->mode_config.num_output = 0;
+ dev->mode_config.num_crtc = 0;
}
EXPORT_SYMBOL(drm_mode_config_init);
@@ -1013,6 +1011,7 @@ void drm_mode_config_cleanup(struct drm_device *dev)
}
list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
+ /* there should only be bo of kernel type left */
if (fb->bo->type != drm_bo_type_kernel)
drm_framebuffer_destroy(fb);
else
@@ -1621,7 +1620,6 @@ int drm_mode_addfb(struct drm_device *dev,
struct drm_mode_config *config = &dev->mode_config;
struct drm_framebuffer *fb;
struct drm_buffer_object *bo;
- struct drm_crtc *crtc;
int ret = 0;
if ((config->min_width > r->width) || (r->width > config->max_width)) {
@@ -1637,6 +1635,7 @@ int drm_mode_addfb(struct drm_device *dev,
/* TODO check limits are okay */
ret = drm_get_buffer_object(dev, &bo, r->handle);
if (ret || !bo) {
+ DRM_ERROR("BO handle not valid\n");
ret = -EINVAL;
goto out;
}
@@ -1646,6 +1645,7 @@ int drm_mode_addfb(struct drm_device *dev,
fb = drm_framebuffer_create(dev);
if (!fb) {
+ DRM_ERROR("could not create framebuffer\n");
ret = -EINVAL;
goto out;
}
@@ -1662,12 +1662,6 @@ int drm_mode_addfb(struct drm_device *dev,
list_add(&fb->filp_head, &file_priv->fbs);
- /* FIXME: bind the fb to the right crtc */
- list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
- crtc->fb = fb;
- dev->driver->fb_probe(dev, crtc);
- }
-
out:
mutex_unlock(&dev->mode_config.mutex);
return ret;
@@ -1694,8 +1688,10 @@ int drm_mode_rmfb(struct drm_device *dev,
void *data, struct drm_file *file_priv)
{
struct drm_framebuffer *fb = 0;
+ struct drm_framebuffer *fbl = 0;
uint32_t *id = data;
int ret = 0;
+ int found = 0;
mutex_lock(&dev->mode_config.mutex);
fb = idr_find(&dev->mode_config.crtc_idr, *id);
@@ -1706,15 +1702,24 @@ int drm_mode_rmfb(struct drm_device *dev,
goto out;
}
- /* TODO check if we own the buffer */
+ list_for_each_entry(fbl, &file_priv->fbs, filp_head)
+ if (fb == fbl)
+ found = 1;
+
+ if (!found) {
+ DRM_ERROR("tried to remove a fb that we didn't own\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
/* TODO release all crtc connected to the framebuffer */
- /* bind the fb to the crtc for now */
/* TODO unhock the destructor from the buffer object */
- if (fb->bo->type != drm_bo_type_kernel)
- drm_framebuffer_destroy(fb);
- else
- dev->driver->fb_remove(dev, drm_crtc_from_fb(dev, fb));
+ if (fb->bo->type == drm_bo_type_kernel)
+ DRM_ERROR("the bo type should not be of kernel type\n");
+
+ list_del(&fb->filp_head);
+ drm_framebuffer_destroy(fb);
out:
mutex_unlock(&dev->mode_config.mutex);
@@ -1788,10 +1793,10 @@ void drm_fb_release(struct file *filp)
mutex_lock(&dev->mode_config.mutex);
list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
list_del(&fb->filp_head);
- if (fb->bo->type != drm_bo_type_kernel)
- drm_framebuffer_destroy(fb);
- else
- dev->driver->fb_remove(dev, drm_crtc_from_fb(dev, fb));
+ if (fb->bo->type == drm_bo_type_kernel)
+ DRM_ERROR("the bo type should not be of kernel_type, the kernel will probably explode, why Dave\n");
+
+ drm_framebuffer_destroy(fb);
}
mutex_unlock(&dev->mode_config.mutex);
}