drm/nv50: report BAR access faults

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

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_irq.c b/drivers/gpu/drm/nouveau/nouveau_irq.c
index 316e0587fb01..a818306781cc 100644
--- 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);