412  * to them without having to worry about swizzling if the object is tiled.
518  * DOC: tiling swizzling details
549  * If we don't have interleaved memory, all tiling is safe and no swizzling is
558  * swizzling it needs to do is, since it's writing with the CPU to the pages
560  * pages (bit 6, 9, and 10 XORed in), resulting in a cumulative bit swizzling
566  * detect_bit_6_swizzle - detect bit 6 swizzling pattern
569  * Detects bit 6 swizzling of address lookup between IGD access and CPU
581 		 * On BDW+, swizzling is not used. We leave the CPU memory  in detect_bit_6_swizzle()
585 		 * VLV and CHV don't have GPU swizzling.  in detect_bit_6_swizzle()
607 			 * Enable swizzling when the channels are populated  in detect_bit_6_swizzle()
610 			 * ships in that configuration. Also, swizzling only  in detect_bit_6_swizzle()
624 		 * same swizzling setup.  in detect_bit_6_swizzle()
631 		 * swizzling issues.  in detect_bit_6_swizzle()
641 		 * swizzling for tiled objects from the CPU.  in detect_bit_6_swizzle()
644 		 *    slot fill         memory size  swizzling  in detect_bit_6_swizzle()
653 		 * matching, which was the case for the swizzling required in  in detect_bit_6_swizzle()
657 		 * Reports indicate that the swizzling actually  in detect_bit_6_swizzle()
674 		 * nor the GPU do swizzling.  For dual channel interleaved,  in detect_bit_6_swizzle()
689 				 * This is the base swizzling by the GPU for  in detect_bit_6_swizzle()
695 				/* Bit 11 swizzling by the CPU in addition. */  in detect_bit_6_swizzle()
699 				/* Bit 17 swizzling by the CPU in addition. */  in detect_bit_6_swizzle()
724 		 * Userspace likes to explode if it sees unknown swizzling,  in detect_bit_6_swizzle()
729 		 * As we don't strictly know what the swizzling is, it may be  in detect_bit_6_swizzle()
765  * i915_gem_object_do_bit_17_swizzle - fixup bit 17 swizzling
769  * This function fixes up the swizzling in case any page frame number for this
802  * i915_gem_object_save_bit_17_swizzle - save bit 17 swizzling
806  * This function saves the bit 17 of each page frame number so that swizzling