diff options
Diffstat (limited to 'drivers/staging/omapdrm/omap_gem.c')
| -rw-r--r-- | drivers/staging/omapdrm/omap_gem.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/staging/omapdrm/omap_gem.c b/drivers/staging/omapdrm/omap_gem.c index c38992b76fc..08f1e292ed2 100644 --- a/drivers/staging/omapdrm/omap_gem.c +++ b/drivers/staging/omapdrm/omap_gem.c @@ -964,6 +964,34 @@ void *omap_gem_vaddr(struct drm_gem_object *obj) return omap_obj->vaddr; } +#ifdef CONFIG_PM +/* re-pin objects in DMM in resume path: */ +int omap_gem_resume(struct device *dev) +{ + struct drm_device *drm_dev = dev_get_drvdata(dev); + struct omap_drm_private *priv = drm_dev->dev_private; + struct omap_gem_object *omap_obj; + int ret = 0; + + list_for_each_entry(omap_obj, &priv->obj_list, mm_list) { + if (omap_obj->block) { + struct drm_gem_object *obj = &omap_obj->base; + uint32_t npages = obj->size >> PAGE_SHIFT; + WARN_ON(!omap_obj->pages); /* this can't happen */ + ret = tiler_pin(omap_obj->block, + omap_obj->pages, npages, + omap_obj->roll, true); + if (ret) { + dev_err(dev, "could not repin: %d\n", ret); + return ret; + } + } + } + + return 0; +} +#endif + #ifdef CONFIG_DEBUG_FS void omap_gem_describe(struct drm_gem_object *obj, struct seq_file *m) { |