[Intel-gfx] [PATCH] drm/i915: Do not invalidate obj->pages under mempressure

[shuang.he at intel.com]

Tested-By: PRC QA PRTS (Patch Regression Test System Contact: shuang.he at intel.com)
Task id: 5582
-------------------------------------Summary-------------------------------------
Platform          Delta          drm-intel-nightly          Series Applied
PNV                                  353/353              353/353
ILK                                  200/200              200/200
SNB                                  400/422              400/422
IVB                 -43              487/487              444/487
BYT                                  296/296              296/296
HSW                                  486/508              486/508
BDW                 -1              402/402              401/402
-------------------------------------Detailed-------------------------------------
Platform  Test                                drm-intel-nightly          Series Applied
 IVB  igt_kms_cursor_crc_cursor-128x128-onscreen      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_cursor_crc_cursor-128x128-random      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_cursor_crc_cursor-128x128-sliding      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_cursor_crc_cursor-256x256-offscreen      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_cursor_crc_cursor-256x256-onscreen      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_cursor_crc_cursor-256x256-sliding      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_cursor_crc_cursor-64x64-offscreen      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_cursor_crc_cursor-64x64-onscreen      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_cursor_crc_cursor-64x64-random      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_cursor_crc_cursor-64x64-sliding      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_cursor_crc_cursor-size-change      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_fence_pin_leak      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_mmio_vs_cs_flip_setcrtc_vs_cs_flip      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_mmio_vs_cs_flip_setplane_vs_cs_flip      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_pipe_crc_basic_read-crc-pipe-A      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_pipe_crc_basic_read-crc-pipe-A-frame-sequence      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_pipe_crc_basic_read-crc-pipe-B      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_pipe_crc_basic_read-crc-pipe-B-frame-sequence      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_pipe_crc_basic_read-crc-pipe-C      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_pipe_crc_basic_read-crc-pipe-C-frame-sequence      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_plane_plane-panning-bottom-right-pipe-A-plane-1      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_plane_plane-panning-bottom-right-pipe-A-plane-2      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_plane_plane-panning-bottom-right-pipe-B-plane-1      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_plane_plane-panning-bottom-right-pipe-B-plane-2      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_plane_plane-panning-bottom-right-pipe-C-plane-2      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_plane_plane-panning-top-left-pipe-A-plane-1      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_plane_plane-panning-top-left-pipe-A-plane-2      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_plane_plane-panning-top-left-pipe-B-plane-1      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_plane_plane-panning-top-left-pipe-B-plane-2      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_plane_plane-panning-top-left-pipe-C-plane-2      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_plane_plane-position-covered-pipe-A-plane-1      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_plane_plane-position-covered-pipe-A-plane-2      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_plane_plane-position-covered-pipe-B-plane-1      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_plane_plane-position-covered-pipe-B-plane-2      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_plane_plane-position-covered-pipe-C-plane-2      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_plane_plane-position-hole-pipe-A-plane-1      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_plane_plane-position-hole-pipe-A-plane-2      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_plane_plane-position-hole-pipe-B-plane-1      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_plane_plane-position-hole-pipe-B-plane-2      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_plane_plane-position-hole-pipe-C-plane-1      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_plane_plane-position-hole-pipe-C-plane-2      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_rotation_crc_primary-rotation      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
 IVB  igt_kms_rotation_crc_sprite-rotation      DMESG_WARN(1, M4)PASS(1, M34)      DMESG_WARN(1, M4)
*BDW  igt_gem_concurrent_blit_gtt-rcs-early-read-interruptible      PASS(3, M30)      DMESG_WARN(1, M30)
Note: You need to pay more attention to line start with '*'