drm/nouveau: split ramin_lock into two locks, one hardirq safe

[platform/adaptation/renesas_rcar/renesas_kernel.git] / drivers / gpu / drm / nouveau / nvc0_vm.c

diff --git a/drivers/gpu/drm/nouveau/nvc0_vm.c b/drivers/gpu/drm/nouveau/nvc0_vm.c
index a0a2a02..a179e6c 100644 (file)
--- a/drivers/gpu/drm/nouveau/nvc0_vm.c
+++ b/drivers/gpu/drm/nouveau/nvc0_vm.c
@@ -104,11 +104,12 @@ nvc0_vm_flush(struct nouveau_vm *vm)
        struct nouveau_instmem_engine *pinstmem = &dev_priv->engine.instmem;
        struct drm_device *dev = vm->dev;
        struct nouveau_vm_pgd *vpgd;
+       unsigned long flags;
        u32 engine = (dev_priv->chan_vm == vm) ? 1 : 5;
 
        pinstmem->flush(vm->dev);
 
-       spin_lock(&dev_priv->ramin_lock);
+       spin_lock_irqsave(&dev_priv->vm_lock, flags);
        list_for_each_entry(vpgd, &vm->pgd_list, head) {
                /* looks like maybe a "free flush slots" counter, the
                 * faster you write to 0x100cbc to more it decreases
@@ -125,5 +126,5 @@ nvc0_vm_flush(struct nouveau_vm *vm)
                                 nv_rd32(dev, 0x100c80), engine);
                }
        }
-       spin_unlock(&dev_priv->ramin_lock);
+       spin_unlock_irqrestore(&dev_priv->vm_lock, flags);
 }