[Intel-gfx] [PATCH 6/6] drm/i915: calculate pfit changes in

[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=348/348->348/348
PNV: pass/total=324/328->324/328
ILK: pass/total=330/330->330/330
IVB: pass/total=488/497->488/497
SNB: pass/total=515/525->516/525
HSW: pass/total=497/505->497/505
BDW: pass/total=430/435->429/435
-------------------------------------Detailed-------------------------------------
test_platform: test_suite, test_case, result_with_drm_intel_nightly(count, machine_id...)...->result_with_patch_applied(count, machine_id)...
PNV: Intel_gpu_tools, igt_drm_vma_limiter_cached, PASS(4, M23M25) -> DMESG_WARN(1, M25)PASS(3, M25)
PNV: Intel_gpu_tools, igt_gem_linear_blits_normal, CRASH(1, M23)DMESG_WARN(1, M24)PASS(8, M24M25) -> PASS(4, M25)
PNV: Intel_gpu_tools, igt_kms_setmode_invalid-clone-single-crtc, DMESG_WARN(1, M23)TIMEOUT(3, M25) -> DMESG_WARN(3, M25)TIMEOUT(1, M25)
IVB: Intel_gpu_tools, igt_kms_cursor_crc_cursor-256x256-sliding, DMESG_WARN(1, M4)PASS(9, M4M34) -> TIMEOUT(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_kms_cursor_crc_cursor-256x256-offscreen, DMESG_WARN(1, M35)PASS(6, M35) -> PASS(4, M35)
SNB: Intel_gpu_tools, igt_kms_cursor_crc_cursor-256x256-sliding, DMESG_WARN(1, M35)PASS(9, M35M22) -> PASS(4, M35)
SNB: Intel_gpu_tools, igt_kms_setmode_invalid-clone-single-crtc, TIMEOUT(3, M35)PASS(1, M35) -> TIMEOUT(1, M35)PASS(3, M35)
BDW: Intel_gpu_tools, igt_kms_setmode_invalid-clone-single-crtc, TIMEOUT(3, M30)PASS(1, M42) -> TIMEOUT(1, M30)PASS(3, M30)