drm/radeon/cik: log and handle VM page fault interrupts

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index 72c7e83..b70f017 100644 (file)
--- a/drivers/gpu/drm/radeon/cik.c
+++ b/drivers/gpu/drm/radeon/cik.c
@@ -3676,6 +3676,16 @@ restart_ih:
                                break;
                        }
                        break;
+               case 146:
+               case 147:
+                       dev_err(rdev->dev, "GPU fault detected: %d 0x%08x\n", src_id, src_data);
+                       dev_err(rdev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x%08X\n",
+                               RREG32(VM_CONTEXT1_PROTECTION_FAULT_ADDR));
+                       dev_err(rdev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
+                               RREG32(VM_CONTEXT1_PROTECTION_FAULT_STATUS));
+                       /* reset addr and status */
+                       WREG32_P(VM_CONTEXT1_CNTL2, 1, ~1);
+                       break;
                case 176: /* GFX RB CP_INT */
                case 177: /* GFX IB CP_INT */
                        radeon_fence_process(rdev, RADEON_RING_TYPE_GFX_INDEX);

diff --git a/drivers/gpu/drm/radeon/cikd.h b/drivers/gpu/drm/radeon/cikd.h
index a282168..cc4f28e 100644 (file)
--- a/drivers/gpu/drm/radeon/cikd.h
+++ b/drivers/gpu/drm/radeon/cikd.h
@@ -95,6 +95,10 @@
 #define VM_INVALIDATE_REQUEST                          0x1478
 #define VM_INVALIDATE_RESPONSE                         0x147c
 
+#define        VM_CONTEXT1_PROTECTION_FAULT_STATUS             0x14DC
+
+#define        VM_CONTEXT1_PROTECTION_FAULT_ADDR               0x14FC
+
 #define VM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR      0x1518
 #define VM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR      0x151c