drm/nv50: report BAR access faults

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

diff --git a/drivers/gpu/drm/nouveau/nouveau_irq.c b/drivers/gpu/drm/nouveau/nouveau_irq.c
index 316e058..a818306 100644 (file)
--- a/drivers/gpu/drm/nouveau/nouveau_irq.c
+++ b/drivers/gpu/drm/nouveau/nouveau_irq.c
@@ -228,6 +228,14 @@ nouveau_fifo_irq_handler(struct drm_device *dev)
                        nv_wr32(dev, NV04_PFIFO_CACHE1_PULL0, 1);
                }
 
+               if (dev_priv->card_type == NV_50) {
+                       if (status & 0x00000010) {
+                               nv50_fb_vm_trap(dev, 1, "PFIFO_BAR_FAULT");
+                               status &= ~0x00000010;
+                               nv_wr32(dev, 0x002100, 0x00000010);
+                       }
+               }
+
                if (status) {
                        NV_INFO(dev, "PFIFO_INTR 0x%08x - Ch %d\n",
                                status, chid);