tree: https://github.com/curro/linux i915-rps-pmintrmask-fix head: f5d6688b08eb089ddbcc3a41a908155d2a3cc8e6 commit: f5d6688b08eb089ddbcc3a41a908155d2a3cc8e6 [1/1] HACK: drm/i915: Move GEN6_PMINTRMSK writes to RPS init with proper forcewake held. config: i386-randconfig-h001-20200413 (attached as .config) compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0 reproduce: git checkout f5d6688b08eb089ddbcc3a41a908155d2a3cc8e6 # save the attached .config to linux build tree make ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): static u32 rps_pm_mask(struct intel_rps *rps, u8 val) ^~~~~~~~~~~ cc1: all warnings being treated as errors vim +/rps_pm_mask +47 drivers/gpu/drm/i915/gt/intel_rps.c 35cc7f32c298ba Chris Wilson 2019-12-18 46 3e7abf8141935d Andi Shyti 2019-10-24 @47 static u32 rps_pm_mask(struct intel_rps *rps, u8 val) 3e7abf8141935d Andi Shyti 2019-10-24 48 { 3e7abf8141935d Andi Shyti 2019-10-24 49 u32 mask = 0; 3e7abf8141935d Andi Shyti 2019-10-24 50 3e7abf8141935d Andi Shyti 2019-10-24 51 /* We use UP_EI_EXPIRED interrupts for both up/down in manual mode */ 3e7abf8141935d Andi Shyti 2019-10-24 52 if (val > rps->min_freq_softlimit) 3e7abf8141935d Andi Shyti 2019-10-24 53 mask |= (GEN6_PM_RP_UP_EI_EXPIRED | 3e7abf8141935d Andi Shyti 2019-10-24 54 GEN6_PM_RP_DOWN_THRESHOLD | 3e7abf8141935d Andi Shyti 2019-10-24 55 GEN6_PM_RP_DOWN_TIMEOUT); 3e7abf8141935d Andi Shyti 2019-10-24 56 3e7abf8141935d Andi Shyti 2019-10-24 57 if (val < rps->max_freq_softlimit) 3e7abf8141935d Andi Shyti 2019-10-24 58 mask |= GEN6_PM_RP_UP_EI_EXPIRED | GEN6_PM_RP_UP_THRESHOLD; 3e7abf8141935d Andi Shyti 2019-10-24 59 408464b4cbcf0a Chris Wilson 2020-03-11 60 mask &= READ_ONCE(rps->pm_events); 3e7abf8141935d Andi Shyti 2019-10-24 61 3e7abf8141935d Andi Shyti 2019-10-24 62 return rps_pm_sanitize_mask(rps, ~mask); 3e7abf8141935d Andi Shyti 2019-10-24 63 } 3e7abf8141935d Andi Shyti 2019-10-24 64 :::::: The code at line 47 was first introduced by commit :::::: 3e7abf8141935ded77abeb622480bf4a14241ece drm/i915: Extract GT render power state management :::::: TO: Andi Shyti <andi(a)etezian.org&gt; :::::: CC: Chris Wilson <chris(a)chris-wilson.co.uk&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org