drm/radeon/cik: stop page faults from hanging the system (v2)

Redirect invalid memory accesses to the default page
instead of locking up the memory controller.

v2: rebase on top of 2 level PTs

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

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/cikd.h b/drivers/gpu/drm/radeon/cikd.h
index 071a7815b030..0dab9c545003 100644
--- a/drivers/gpu/drm/radeon/cikd.h
+++ b/drivers/gpu/drm/radeon/cikd.h
@@ -68,7 +68,18 @@
 #define VM_CONTEXT0_CNTL                                0x1410
 #define         ENABLE_CONTEXT                                  (1 << 0)
 #define         PAGE_TABLE_DEPTH(x)                             (((x) & 3) << 1)
+#define         RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT         (1 << 3)
 #define         RANGE_PROTECTION_FAULT_ENABLE_DEFAULT           (1 << 4)
+#define         DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT    (1 << 6)
+#define         DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT      (1 << 7)
+#define         PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT          (1 << 9)
+#define         PDE0_PROTECTION_FAULT_ENABLE_DEFAULT            (1 << 10)
+#define         VALID_PROTECTION_FAULT_ENABLE_INTERRUPT         (1 << 12)
+#define         VALID_PROTECTION_FAULT_ENABLE_DEFAULT           (1 << 13)
+#define         READ_PROTECTION_FAULT_ENABLE_INTERRUPT          (1 << 15)
+#define         READ_PROTECTION_FAULT_ENABLE_DEFAULT            (1 << 16)
+#define         WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT         (1 << 18)
+#define         WRITE_PROTECTION_FAULT_ENABLE_DEFAULT           (1 << 19)
 #define VM_CONTEXT1_CNTL                                0x1414
 #define VM_CONTEXT0_CNTL2                               0x1430
 #define VM_CONTEXT1_CNTL2                               0x1434