vmwgfx: Implement a proper GMR eviction mechanism

[deliverable/linux.git] / drivers / gpu / drm / vmwgfx / vmwgfx_drv.c

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index f2942b3c59c0f501605b7759708c21fcff464e9d..d0ef624fbdccc7e9ef95cc42b583d3a4d881b344 100644 (file)
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -260,13 +260,11 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
        idr_init(&dev_priv->context_idr);
        idr_init(&dev_priv->surface_idr);
        idr_init(&dev_priv->stream_idr);
-       ida_init(&dev_priv->gmr_ida);
        mutex_init(&dev_priv->init_mutex);
        init_waitqueue_head(&dev_priv->fence_queue);
        init_waitqueue_head(&dev_priv->fifo_queue);
        atomic_set(&dev_priv->fence_queue_waiters, 0);
        atomic_set(&dev_priv->fifo_queue_waiters, 0);
-       INIT_LIST_HEAD(&dev_priv->gmr_lru);
 
        dev_priv->io_start = pci_resource_start(dev->pdev, 0);
        dev_priv->vram_start = pci_resource_start(dev->pdev, 1);
@@ -341,6 +339,14 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
                goto out_err2;
        }
 
+       dev_priv->has_gmr = true;
+       if (ttm_bo_init_mm(&dev_priv->bdev, VMW_PL_GMR,
+                          dev_priv->max_gmr_ids) != 0) {
+               DRM_INFO("No GMR memory available. "
+                        "Graphics memory resources are very limited.\n");
+               dev_priv->has_gmr = false;
+       }
+
        dev_priv->mmio_mtrr = drm_mtrr_add(dev_priv->mmio_start,
                                           dev_priv->mmio_size, DRM_MTRR_WC);
 
@@ -440,13 +446,14 @@ out_err4:
 out_err3:
        drm_mtrr_del(dev_priv->mmio_mtrr, dev_priv->mmio_start,
                     dev_priv->mmio_size, DRM_MTRR_WC);
+       if (dev_priv->has_gmr)
+               (void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR);
        (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM);
 out_err2:
        (void)ttm_bo_device_release(&dev_priv->bdev);
 out_err1:
        vmw_ttm_global_release(dev_priv);
 out_err0:
-       ida_destroy(&dev_priv->gmr_ida);
        idr_destroy(&dev_priv->surface_idr);
        idr_destroy(&dev_priv->context_idr);
        idr_destroy(&dev_priv->stream_idr);
@@ -478,10 +485,11 @@ static int vmw_driver_unload(struct drm_device *dev)
        iounmap(dev_priv->mmio_virt);
        drm_mtrr_del(dev_priv->mmio_mtrr, dev_priv->mmio_start,
                     dev_priv->mmio_size, DRM_MTRR_WC);
+       if (dev_priv->has_gmr)
+               (void)ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR);
        (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM);
        (void)ttm_bo_device_release(&dev_priv->bdev);
        vmw_ttm_global_release(dev_priv);
-       ida_destroy(&dev_priv->gmr_ida);
        idr_destroy(&dev_priv->surface_idr);
        idr_destroy(&dev_priv->context_idr);
        idr_destroy(&dev_priv->stream_idr);