This magic brings stability to HSW B0 CRW machines. Signed-off-by: Rodrigo Vivi <rodrigo.vivi at gmail.com> --- drivers/gpu/drm/i915/i915_gem.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 61c3640..e59713c 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -3953,6 +3953,9 @@ i915_gem_init_hw(struct drm_device *dev) if (!intel_enable_gtt()) return -EIO; + if (IS_HASWELL(dev) && (I915_READ(0x120010) == 1)) + I915_WRITE(0x9008, I915_READ(0x9008) | 0xf0000); + i915_gem_l3_remap(dev); i915_gem_init_swizzling(dev); -- 1.7.11.4
