[Intel-gfx] [PATCH] drm/i915: Reduce locking in command submission

[shuang.he at intel.com]

Tested-By: PRC QA PRTS (Patch Regression Test System Contact: shuang.he at intel.com)
Task id: 5585
-------------------------------------Summary-------------------------------------
Platform          Delta          drm-intel-nightly          Series Applied
PNV                                  353/353              353/353
ILK                 -1              200/200              199/200
SNB                                  400/422              400/422
IVB                                  487/487              487/487
BYT                                  296/296              296/296
HSW              +22-1              486/508              507/508
BDW                 -1              402/402              401/402
-------------------------------------Detailed-------------------------------------
Platform  Test                                drm-intel-nightly          Series Applied
*ILK  igt_gem_concurrent_blit_gtt-bcs-overwrite-source      PASS(2, M37)      NO_RESULT(1, M37)
 HSW  igt_kms_cursor_crc_cursor-size-change      NSPT(1, M40)PASS(4, M20M40)      PASS(1, M20)
 HSW  igt_kms_fence_pin_leak      NSPT(1, M40)PASS(4, M20M40)      PASS(1, M20)
 HSW  igt_kms_flip_event_leak      NSPT(2, M40)PASS(3, M20)      PASS(1, M20)
 HSW  igt_kms_flip_flip-vs-dpms-off-vs-modeset      DMESG_WARN(2, M20M40)PASS(1, M40)      DMESG_WARN(1, M20)
 HSW  igt_kms_mmio_vs_cs_flip_setcrtc_vs_cs_flip      NSPT(1, M40)PASS(4, M20M40)      PASS(1, M20)
 HSW  igt_kms_mmio_vs_cs_flip_setplane_vs_cs_flip      NSPT(1, M40)PASS(4, M20M40)      PASS(1, M20)
 HSW  igt_pm_lpsp_non-edp      NSPT(1, M40)PASS(4, M20M40)      PASS(1, M20)
 HSW  igt_pm_rpm_cursor      NSPT(1, M40)PASS(4, M20M40)      PASS(1, M20)
 HSW  igt_pm_rpm_cursor-dpms      NSPT(1, M40)PASS(4, M20M40)      PASS(1, M20)
 HSW  igt_pm_rpm_dpms-mode-unset-non-lpsp      NSPT(1, M40)PASS(4, M20M40)      PASS(1, M20)
 HSW  igt_pm_rpm_dpms-non-lpsp      NSPT(1, M40)PASS(4, M20M40)      PASS(1, M20)
 HSW  igt_pm_rpm_drm-resources-equal      NSPT(1, M40)PASS(4, M20M40)      PASS(1, M20)
 HSW  igt_pm_rpm_fences      NSPT(1, M40)PASS(4, M20M40)      PASS(1, M20)
 HSW  igt_pm_rpm_fences-dpms      NSPT(1, M40)PASS(4, M20M40)      PASS(1, M20)
 HSW  igt_pm_rpm_gem-execbuf      NSPT(1, M40)PASS(4, M20M40)      PASS(1, M20)
 HSW  igt_pm_rpm_gem-mmap-cpu      NSPT(1, M40)PASS(4, M20M40)      PASS(1, M20)
 HSW  igt_pm_rpm_gem-mmap-gtt      NSPT(1, M40)PASS(4, M20M40)      PASS(1, M20)
 HSW  igt_pm_rpm_gem-pread      NSPT(1, M40)PASS(4, M20M40)      PASS(1, M20)
 HSW  igt_pm_rpm_i2c      NSPT(1, M40)PASS(4, M20M40)      PASS(1, M20)
 HSW  igt_pm_rpm_modeset-non-lpsp      NSPT(1, M40)PASS(4, M20M40)      PASS(1, M20)
 HSW  igt_pm_rpm_modeset-non-lpsp-stress-no-wait      NSPT(1, M40)PASS(4, M20M40)      PASS(1, M20)
 HSW  igt_pm_rpm_pci-d3-state      NSPT(1, M40)PASS(4, M20M40)      PASS(1, M20)
 HSW  igt_pm_rpm_rte      NSPT(1, M40)PASS(4, M20M40)      PASS(1, M20)
*BDW  igt_gem_concurrent_blit_gtt-rcs-early-read-interruptible      PASS(7, M30M28)      DMESG_WARN(1, M30)
Note: You need to pay more attention to line start with '*'