[Intel-gfx] [PATCH] drm/i915: Update PM interrupts before updating the freq

[shuang.he at intel.com]

Tested-By: PRC QA PRTS (Patch Regression Test System Contact: shuang.he at intel.com)
Task id: 5890
-------------------------------------Summary-------------------------------------
Platform          Delta          drm-intel-nightly          Series Applied
PNV                 -1              280/280              279/280
ILK                 -1              308/308              307/308
SNB                 -18              328/328              310/328
IVB                                  379/379              379/379
BYT                                  294/294              294/294
HSW                                  387/387              387/387
BDW                 -1              316/316              315/316
-------------------------------------Detailed-------------------------------------
Platform  Test                                drm-intel-nightly          Series Applied
 PNV  igt_gem_userptr_blits_minor-unsync-normal      DMESG_WARN(1)PASS(5)      DMESG_WARN(1)PASS(1)
*ILK  igt_gem_unfence_active_buffers      PASS(2)      DMESG_WARN(1)PASS(1)
*SNB  igt_kms_rotation_crc_primary-rotation      NSPT(2)DMESG_WARN(1)PASS(3)      DMESG_FAIL(1)NSPT(1)
 SNB  igt_kms_rotation_crc_sprite-rotation      NSPT(2)DMESG_WARN(1)PASS(4)      NSPT(2)
 SNB  igt_pm_rpm_cursor      NSPT(2)DMESG_WARN(1)PASS(3)      NSPT(2)
 SNB  igt_pm_rpm_cursor-dpms      NSPT(2)DMESG_WARN(1)PASS(3)      NSPT(2)
 SNB  igt_pm_rpm_dpms-mode-unset-non-lpsp      NSPT(2)DMESG_WARN(1)PASS(3)      NSPT(2)
 SNB  igt_pm_rpm_dpms-non-lpsp      NSPT(2)DMESG_WARN(1)PASS(3)      NSPT(2)
 SNB  igt_pm_rpm_drm-resources-equal      NSPT(2)DMESG_WARN(1)PASS(3)      NSPT(2)
 SNB  igt_pm_rpm_fences      NSPT(2)DMESG_WARN(1)PASS(3)      NSPT(2)
 SNB  igt_pm_rpm_fences-dpms      NSPT(2)DMESG_WARN(1)PASS(3)      NSPT(2)
 SNB  igt_pm_rpm_gem-execbuf      NSPT(2)DMESG_WARN(1)PASS(3)      NSPT(2)
 SNB  igt_pm_rpm_gem-mmap-cpu      NSPT(2)DMESG_WARN(1)PASS(3)      NSPT(2)
 SNB  igt_pm_rpm_gem-mmap-gtt      NSPT(2)DMESG_WARN(1)PASS(3)      NSPT(2)
 SNB  igt_pm_rpm_gem-pread      NSPT(2)DMESG_WARN(1)PASS(1)      NSPT(2)
 SNB  igt_pm_rpm_i2c      NSPT(2)DMESG_WARN(1)PASS(1)      NSPT(2)
 SNB  igt_pm_rpm_modeset-non-lpsp      NSPT(2)DMESG_WARN(1)PASS(1)      NSPT(2)
 SNB  igt_pm_rpm_modeset-non-lpsp-stress-no-wait      NSPT(2)DMESG_WARN(1)PASS(1)      NSPT(2)
 SNB  igt_pm_rpm_pci-d3-state      NSPT(2)DMESG_WARN(1)PASS(1)      NSPT(2)
 SNB  igt_pm_rpm_rte      NSPT(2)DMESG_WARN(1)PASS(1)      NSPT(2)
*BDW  igt_gem_gtt_hog      PASS(6)      DMESG_WARN(1)PASS(1)
Note: You need to pay more attention to line start with '*'