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drm: drop DRM_IOCTL_MODE_REPLACEFB, add+remove works just as well.

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The replace fb ioctl replaces the backing buffer object for a modesetting
framebuffer object.  This can be acheived by just creating a new
framebuffer backed by the new buffer object, setting that for the crtcs
in question and then removing the old framebuffer object.

Signed-off-by: Kristian Hogsberg <krh@redhat.com>
Acked-by: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Kristian H�gsberg 2008-12-18 13:14:37 +10:00 committed by Dave Airlie
parent e0c8463a8b
commit 0c7c266475
5 changed files with 0 additions and 74 deletions
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40
drivers/gpu/drm/drm_crtc.c
View File

@ -2302,46 +2302,6 @@ out:
return ret;
}
int drm_mode_replacefb(struct drm_device *dev,
void *data, struct drm_file *file_priv)
{
struct drm_mode_fb_cmd *r = data;
struct drm_mode_object *obj;
struct drm_framebuffer *fb;
int found = 0;
struct drm_framebuffer *fbl = NULL;
int ret = 0;
/* right replace the current bo attached to this fb with a new bo */
mutex_lock(&dev->mode_config.mutex);
obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
if (!obj) {
ret = -EINVAL;
goto out;
}
fb = obj_to_fb(obj);
list_for_each_entry(fbl, &file_priv->fbs, filp_head)
if (fb == fbl)
found = 1;
if (!found) {
DRM_ERROR("tried to replace an fb we didn't own\n");
ret = -EINVAL;
goto out;
}
if (dev->mode_config.funcs->resize_fb)
ret = dev->mode_config.funcs->resize_fb(dev, file_priv, fb, r);
else
ret = -EINVAL;
out:
mutex_unlock(&dev->mode_config.mutex);
return ret;
}
int drm_mode_connector_attach_encoder(struct drm_connector *connector,
struct drm_encoder *encoder)
{

1
drivers/gpu/drm/drm_drv.c
View File

@ -143,7 +143,6 @@ static struct drm_ioctl_desc drm_ioctls[] = {
DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETFB, drm_mode_getfb, DRM_MASTER|DRM_CONTROL_ALLOW),
DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB, drm_mode_addfb, DRM_MASTER|DRM_CONTROL_ALLOW),
DRM_IOCTL_DEF(DRM_IOCTL_MODE_RMFB, drm_mode_rmfb, DRM_MASTER|DRM_CONTROL_ALLOW),
DRM_IOCTL_DEF(DRM_IOCTL_MODE_REPLACEFB, drm_mode_replacefb, DRM_MASTER|DRM_ROOT_ONLY|DRM_CONTROL_ALLOW),
};
#define DRM_CORE_IOCTL_COUNT ARRAY_SIZE( drm_ioctls )

31
drivers/gpu/drm/i915/intel_display.c
View File

@ -1528,38 +1528,7 @@ intel_user_framebuffer_create(struct drm_device *dev,
return fb;
}
static int intel_insert_new_fb(struct drm_device *dev,
struct drm_file *file_priv,
struct drm_framebuffer *fb,
struct drm_mode_fb_cmd *mode_cmd)
{
struct intel_framebuffer *intel_fb;
struct drm_gem_object *obj;
struct drm_crtc *crtc;
intel_fb = to_intel_framebuffer(fb);
obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handle);
if (!obj)
return -EINVAL;
intel_fb->obj = obj;
drm_gem_object_unreference(intel_fb->obj);
drm_helper_mode_fill_fb_struct(fb, mode_cmd);
mutex_unlock(&dev->struct_mutex);
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
if (crtc->fb == fb) {
struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
crtc_funcs->mode_set_base(crtc, crtc->x, crtc->y);
}
}
return 0;
}
static const struct drm_mode_config_funcs intel_mode_funcs = {
.resize_fb = intel_insert_new_fb,
.fb_create = intel_user_framebuffer_create,
.fb_changed = intelfb_probe,
};

1
include/drm/drm.h
View File

@ -687,7 +687,6 @@ struct drm_gem_open {
#define DRM_IOCTL_MODE_GETFB DRM_IOWR(0xAD, struct drm_mode_fb_cmd)
#define DRM_IOCTL_MODE_ADDFB DRM_IOWR(0xAE, struct drm_mode_fb_cmd)
#define DRM_IOCTL_MODE_RMFB DRM_IOWR(0xAF, unsigned int)
#define DRM_IOCTL_MODE_REPLACEFB DRM_IOWR(0xB0, struct drm_mode_fb_cmd)
/**
* Device specific ioctls should only be in their respective headers

1
include/drm/drm_crtc.h
View File

@ -510,7 +510,6 @@ struct drm_mode_set {
* the CRTC<->connector mappings as needed and update its view of the screen.
*/
struct drm_mode_config_funcs {
int (*resize_fb)(struct drm_device *dev, struct drm_file *file_priv, struct drm_framebuffer *fb, struct drm_mode_fb_cmd *mode_cmd);
struct drm_framebuffer *(*fb_create)(struct drm_device *dev, struct drm_file *file_priv, struct drm_mode_fb_cmd *mode_cmd);
int (*fb_changed)(struct drm_device *dev);
};