drm/i915/bdw: Export workaround data to debugfs
The workarounds that are applied are exported to a debugfs file;
this is used to verify their state after the test case (reset or
suspend/resume etc). This patch is only required to support i-g-t.
Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index f13f30d..9582065 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1556,6 +1556,20 @@
struct intel_shared_dpll shared_dplls[I915_NUM_PLLS];
int dpio_phy_iosf_port[I915_NUM_PHYS_VLV];
+ /*
+ * workarounds are currently applied at different places and
+ * changes are being done to consolidate them so exact count is
+ * not clear at this point, use a max value for now.
+ */
+#define I915_MAX_WA_REGS 16
+ struct {
+ u32 addr;
+ u32 value;
+ /* bitmask representing WA bits */
+ u32 mask;
+ } intel_wa_regs[I915_MAX_WA_REGS];
+ u32 num_wa_regs;
+
/* Reclocking support */
bool render_reclock_avail;
bool lvds_downclock_avail;