diff options
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/drm_crtc.c | 257 | ||||
| -rw-r--r-- | drivers/gpu/drm/drm_drv.c | 3 |
2 files changed, 258 insertions, 2 deletions
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 9a2e2a14b3bb..5e1df76c8f72 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -324,6 +324,7 @@ void drm_framebuffer_cleanup(struct drm_framebuffer *fb) { struct drm_device *dev = fb->dev; struct drm_crtc *crtc; + struct drm_plane *plane; struct drm_mode_set set; int ret; @@ -340,6 +341,15 @@ void drm_framebuffer_cleanup(struct drm_framebuffer *fb) } } + list_for_each_entry(plane, &dev->mode_config.plane_list, head) { + if (plane->fb == fb) { + /* should turn off the crtc */ + ret = plane->funcs->disable_plane(plane); + if (ret) + DRM_ERROR("failed to disable plane with busy fb\n"); + } + } + drm_mode_object_put(dev, &fb->base); list_del(&fb->head); dev->mode_config.num_fb--; @@ -540,6 +550,50 @@ void drm_encoder_cleanup(struct drm_encoder *encoder) } EXPORT_SYMBOL(drm_encoder_cleanup); +int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, + unsigned long possible_crtcs, + const struct drm_plane_funcs *funcs, + uint32_t *formats, uint32_t format_count) +{ + mutex_lock(&dev->mode_config.mutex); + + plane->dev = dev; + drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); + plane->funcs = funcs; + plane->format_types = kmalloc(sizeof(uint32_t) * format_count, + GFP_KERNEL); + if (!plane->format_types) { + DRM_DEBUG_KMS("out of memory when allocating plane\n"); + drm_mode_object_put(dev, &plane->base); + return -ENOMEM; + } + + memcpy(plane->format_types, formats, format_count); + plane->format_count = format_count; + plane->possible_crtcs = possible_crtcs; + + list_add_tail(&plane->head, &dev->mode_config.plane_list); + dev->mode_config.num_plane++; + + mutex_unlock(&dev->mode_config.mutex); + + return 0; +} +EXPORT_SYMBOL(drm_plane_init); + +void drm_plane_cleanup(struct drm_plane *plane) +{ + struct drm_device *dev = plane->dev; + + mutex_lock(&dev->mode_config.mutex); + kfree(plane->format_types); + drm_mode_object_put(dev, &plane->base); + list_del(&plane->head); + dev->mode_config.num_plane--; + mutex_unlock(&dev->mode_config.mutex); +} +EXPORT_SYMBOL(drm_plane_cleanup); + /** * drm_mode_create - create a new display mode * @dev: DRM device @@ -871,6 +925,7 @@ void drm_mode_config_init(struct drm_device *dev) INIT_LIST_HEAD(&dev->mode_config.encoder_list); INIT_LIST_HEAD(&dev->mode_config.property_list); INIT_LIST_HEAD(&dev->mode_config.property_blob_list); + INIT_LIST_HEAD(&dev->mode_config.plane_list); idr_init(&dev->mode_config.crtc_idr); mutex_lock(&dev->mode_config.mutex); @@ -947,6 +1002,7 @@ void drm_mode_config_cleanup(struct drm_device *dev) struct drm_encoder *encoder, *enct; struct drm_framebuffer *fb, *fbt; struct drm_property *property, *pt; + struct drm_plane *plane, *plt; list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, head) { @@ -971,6 +1027,10 @@ void drm_mode_config_cleanup(struct drm_device *dev) crtc->funcs->destroy(crtc); } + list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, + head) { + plane->funcs->destroy(plane); + } } EXPORT_SYMBOL(drm_mode_config_cleanup); @@ -1471,6 +1531,197 @@ out: } /** + * drm_mode_getplane_res - get plane info + * @dev: DRM device + * @data: ioctl data + * @file_priv: DRM file info + * + * Return an plane count and set of IDs. + */ +int drm_mode_getplane_res(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_mode_get_plane_res *plane_resp = data; + struct drm_mode_config *config; + struct drm_plane *plane; + uint32_t __user *plane_ptr; + int copied = 0, ret = 0; + + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + + mutex_lock(&dev->mode_config.mutex); + config = &dev->mode_config; + + /* + * This ioctl is called twice, once to determine how much space is + * needed, and the 2nd time to fill it. + */ + if (config->num_plane && + (plane_resp->count_planes >= config->num_plane)) { + plane_ptr = (uint32_t *)(unsigned long)plane_resp->plane_id_ptr; + + list_for_each_entry(plane, &config->plane_list, head) { + if (put_user(plane->base.id, plane_ptr + copied)) { + ret = -EFAULT; + goto out; + } + copied++; + } + } + plane_resp->count_planes = config->num_plane; + +out: + mutex_unlock(&dev->mode_config.mutex); + return ret; +} + +/** + * drm_mode_getplane - get plane info + * @dev: DRM device + * @data: ioctl data + * @file_priv: DRM file info + * + * Return plane info, including formats supported, gamma size, any + * current fb, etc. + */ +int drm_mode_getplane(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_mode_get_plane *plane_resp = data; + struct drm_mode_object *obj; + struct drm_plane *plane; + uint32_t __user *format_ptr; + int ret = 0; + + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + + mutex_lock(&dev->mode_config.mutex); + obj = drm_mode_object_find(dev, plane_resp->plane_id, + DRM_MODE_OBJECT_PLANE); + if (!obj) { + ret = -ENOENT; + goto out; + } + plane = obj_to_plane(obj); + + if (plane->crtc) + plane_resp->crtc_id = plane->crtc->base.id; + else + plane_resp->crtc_id = 0; + + if (plane->fb) + plane_resp->fb_id = plane->fb->base.id; + else + plane_resp->fb_id = 0; + + plane_resp->plane_id = plane->base.id; + plane_resp->possible_crtcs = plane->possible_crtcs; + plane_resp->gamma_size = plane->gamma_size; + + /* + * This ioctl is called twice, once to determine how much space is + * needed, and the 2nd time to fill it. + */ + if (plane->format_count && + (plane_resp->count_format_types >= plane->format_count)) { + format_ptr = (uint32_t *)(unsigned long)plane_resp->format_type_ptr; + if (copy_to_user(format_ptr, + plane->format_types, + sizeof(uint32_t) * plane->format_count)) { + ret = -EFAULT; + goto out; + } + } + plane_resp->count_format_types = plane->format_count; + +out: + mutex_unlock(&dev->mode_config.mutex); + return ret; +} + +/** + * drm_mode_setplane - set up or tear down an plane + * @dev: DRM device + * @data: ioctl data* + * @file_prive: DRM file info + * + * Set plane info, including placement, fb, scaling, and other factors. + * Or pass a NULL fb to disable. + */ +int drm_mode_setplane(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_mode_set_plane *plane_req = data; + struct drm_mode_object *obj; + struct drm_plane *plane; + struct drm_crtc *crtc; + struct drm_framebuffer *fb; + int ret = 0; + + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + + mutex_lock(&dev->mode_config.mutex); + + /* + * First, find the plane, crtc, and fb objects. If not available, + * we don't bother to call the driver. + */ + obj = drm_mode_object_find(dev, plane_req->plane_id, + DRM_MODE_OBJECT_PLANE); + if (!obj) { + DRM_DEBUG_KMS("Unknown plane ID %d\n", + plane_req->plane_id); + ret = -ENOENT; + goto out; + } + plane = obj_to_plane(obj); + + /* No fb means shut it down */ + if (!plane_req->fb_id) { + plane->funcs->disable_plane(plane); + goto out; + } + + obj = drm_mode_object_find(dev, plane_req->crtc_id, + DRM_MODE_OBJECT_CRTC); + if (!obj) { + DRM_DEBUG_KMS("Unknown crtc ID %d\n", + plane_req->crtc_id); + ret = -ENOENT; + goto out; + } + crtc = obj_to_crtc(obj); + + obj = drm_mode_object_find(dev, plane_req->fb_id, + DRM_MODE_OBJECT_FB); + if (!obj) { + DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", + plane_req->fb_id); + ret = -ENOENT; + goto out; + } + fb = obj_to_fb(obj); + + ret = plane->funcs->update_plane(plane, crtc, fb, + plane_req->crtc_x, plane_req->crtc_y, + plane_req->crtc_w, plane_req->crtc_h, + plane_req->src_x, plane_req->src_y, + plane_req->src_w, plane_req->src_h); + if (!ret) { + plane->crtc = crtc; + plane->fb = fb; + } + +out: + mutex_unlock(&dev->mode_config.mutex); + + return ret; +} + +/** * drm_mode_setcrtc - set CRTC configuration * @inode: inode from the ioctl * @filp: file * from the ioctl @@ -1693,11 +1944,13 @@ int drm_mode_addfb(struct drm_device *dev, return -EINVAL; if ((config->min_width > r->width) || (r->width > config->max_width)) { - DRM_ERROR("mode new framebuffer width not within limits\n"); + DRM_ERROR("bad framebuffer width %d, should be >= %d && <= %d\n", + r->width, config->min_width, config->max_width); return -EINVAL; } if ((config->min_height > r->height) || (r->height > config->max_height)) { - DRM_ERROR("mode new framebuffer height not within limits\n"); + DRM_ERROR("bad framebuffer height %d, should be >= %d && <= %d\n", + r->height, config->min_height, config->max_height); return -EINVAL; } diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c index fc81af9dbf42..4f25989b0d4a 100644 --- a/drivers/gpu/drm/drm_drv.c +++ b/drivers/gpu/drm/drm_drv.c @@ -136,8 +136,11 @@ static struct drm_ioctl_desc drm_ioctls[] = { DRM_IOCTL_DEF(DRM_IOCTL_GEM_OPEN, drm_gem_open_ioctl, DRM_AUTH|DRM_UNLOCKED), DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETRESOURCES, drm_mode_getresources, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), + DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPLANERESOURCES, drm_mode_getplane_res, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCRTC, drm_mode_getcrtc, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETCRTC, drm_mode_setcrtc, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), + DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPLANE, drm_mode_getplane, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), + DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETPLANE, drm_mode_setplane, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), DRM_IOCTL_DEF(DRM_IOCTL_MODE_CURSOR, drm_mode_cursor_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETGAMMA, drm_mode_gamma_get_ioctl, DRM_MASTER|DRM_UNLOCKED), DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETGAMMA, drm_mode_gamma_set_ioctl, DRM_MASTER|DRM_UNLOCKED), |