[Intel-gfx] [PATCH] drm/i915: Dont clear PIN_GLOBAL in the execbuf pinning fallback

[shuang.he at intel.com]

Tested-By: Intel Graphics QA PRTS (Patch Regression Test System Contact: shuang.he at intel.com)
Task id: 6193
-------------------------------------Summary-------------------------------------
Platform          Delta          drm-intel-nightly          Series Applied
PNV                 -8              276/276              268/276
ILK                                  301/301              301/301
SNB                                  316/316              316/316
IVB                 -4              328/328              324/328
BYT                                  285/285              285/285
HSW                                  394/394              394/394
BDW                                  321/321              321/321
-------------------------------------Detailed-------------------------------------
Platform  Test                                drm-intel-nightly          Series Applied
*PNV  igt at gem_fence_thrash@bo-write-verify-none      PASS(3)      FAIL(1)PASS(1)
*PNV  igt at gem_fence_thrash@bo-write-verify-threaded-none      PASS(3)      CRASH(1)PASS(1)
 PNV  igt at gem_userptr_blits@coherency-sync      CRASH(2)PASS(6)      CRASH(1)PASS(1)
 PNV  igt at gem_userptr_blits@coherency-unsync      CRASH(2)PASS(7)      CRASH(1)PASS(1)
 PNV  igt at gen3_render_linear_blits      FAIL(4)PASS(9)      FAIL(1)PASS(1)
 PNV  igt at gen3_render_mixed_blits      FAIL(5)PASS(8)      FAIL(1)PASS(1)
 PNV  igt at gen3_render_tiledx_blits      FAIL(5)PASS(9)      FAIL(1)PASS(1)
 PNV  igt at gen3_render_tiledy_blits      FAIL(4)PASS(9)      FAIL(1)PASS(1)
*IVB  igt at kms_cursor_crc@cursor-128x128-onscreen      PASS(2)      TIMEOUT(1)PASS(1)
*IVB  igt at kms_cursor_crc@cursor-128x128-random      PASS(2)      TIMEOUT(1)PASS(1)
*IVB  igt at kms_cursor_crc@cursor-128x128-sliding      PASS(2)      TIMEOUT(1)PASS(1)
*IVB  igt at kms_cursor_crc@cursor-256x256-onscreen      PASS(2)      TIMEOUT(1)PASS(1)
Note: You need to pay more attention to line start with '*'