drm/i915: Extend non readable mcr range

Our current avoidance of non readable mcr range was not
inclusive enough. Extend the start and end.

References: HSDES#1405586840
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190809145653.2279-1-mika.kuoppala@linux.intel.com

diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index ad2261e..8639fcc 100644 (file)
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -1453,7 +1453,7 @@ static bool mcr_range(struct drm_i915_private *i915, u32 offset)
         * which only controls CPU initiated MMIO. Routing does not
         * work for CS access so we cannot verify them on this path.
         */
-       if (INTEL_GEN(i915) >= 8 && (offset >= 0xb100 && offset <= 0xb3ff))
+       if (INTEL_GEN(i915) >= 8 && (offset >= 0xb000 && offset <= 0xb4ff))
                return true;
 
        return false;