[Intel-gfx] [PATCH v3 8/8] drm/i915: Support alias ppgtt in VM if

[shuang.he at intel.com]

Tested-By: PRC QA PRTS (Patch Regression Test System Contact: shuang.he at intel.com)
-------------------------------------Summary-------------------------------------
Platform: baseline_drm_intel_nightly_pass_rate->patch_applied_pass_rate
BYT: pass/total=291/291->290/291
PNV: pass/total=356/356->356/356
ILK: pass/total=372/372->371/372
IVB: pass/total=544/546->544/546
SNB: pass/total=423/425->424/425
HSW: pass/total=579/579->579/579
BDW: pass/total=421/423->422/423
-------------------------------------Detailed-------------------------------------
test_platform: test_suite, test_case, result_with_drm_intel_nightly(count, machine_id...)...->result_with_patch_applied(count, machine_id)...
BYT: Intel_gpu_tools, igt_kms_setmode_invalid-clone-single-crtc, TIMEOUT(15, M36M31)PASS(1, M38) -> TIMEOUT(4, M31)
ILK: Intel_gpu_tools, igt_kms_setmode_invalid-clone-single-crtc, FAIL(3, M26)DMESG_FAIL(1, M26)TIMEOUT(24, M37M6M26)PASS(1, M26) -> TIMEOUT(4, M37)
IVB: Intel_gpu_tools, igt_gem_bad_reloc_negative-reloc, NSPT(5, M4M21M34M45)PASS(8, M21M34M4M45) -> NSPT(1, M34)PASS(3, M34)
IVB: Intel_gpu_tools, igt_kms_pipe_crc_basic_hang-read-crc-pipe-B, PASS(4, M4M34) -> TIMEOUT(1, M34)PASS(3, M34)
SNB: Intel_gpu_tools, igt_gem_concurrent_blit_gpuX-bcs-overwrite-source-forked, FAIL(1, M22)PASS(9, M35M22) -> FAIL(1, M22)PASS(3, M22)
BDW: Intel_gpu_tools, igt_gem_reset_stats_ban-bsd, DMESG_WARN(1, M30)PASS(9, M30M42) -> PASS(4, M42)