tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 24085f70a6e1b0cb647ec92623284641d8270637 commit: def2fbffe62c00c330c7f41584a356001179c59c kconfig: allow symbols implied by y to become m date: 9 weeks ago config: arm64-randconfig-r034-20200513 (attached as .config) compiler: aarch64-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout def2fbffe62c00c330c7f41584a356001179c59c # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day GCC_VERSION=9.3.0 make.cross ARCH=arm64 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 >>): aarch64-linux-ld: drivers/gpu/drm/rcar-du/rcar_du_crtc.o: in function `rcar_du_cmm_setup': aarch64-linux-ld: drivers/gpu/drm/rcar-du/rcar_du_crtc.o: in function `rcar_du_crtc_atomic_enable': aarch64-linux-ld: drivers/gpu/drm/rcar-du/rcar_du_crtc.o: in function `rcar_du_crtc_stop': aarch64-linux-ld: drivers/gpu/drm/rcar-du/rcar_du_kms.o: in function `rcar_du_cmm_init': vim +515 drivers/gpu/drm/rcar-du/rcar_du_crtc.c 78b6bb1d24dbf0 Jacopo Mondi 2019-10-17 502 78b6bb1d24dbf0 Jacopo Mondi 2019-10-17 503 static void rcar_du_cmm_setup(struct drm_crtc *crtc) 78b6bb1d24dbf0 Jacopo Mondi 2019-10-17 504 { 78b6bb1d24dbf0 Jacopo Mondi 2019-10-17 505 struct drm_property_blob *drm_lut = crtc->state->gamma_lut; 78b6bb1d24dbf0 Jacopo Mondi 2019-10-17 506 struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc); 78b6bb1d24dbf0 Jacopo Mondi 2019-10-17 507 struct rcar_cmm_config cmm_config = {}; 78b6bb1d24dbf0 Jacopo Mondi 2019-10-17 508 78b6bb1d24dbf0 Jacopo Mondi 2019-10-17 509 if (!rcrtc->cmm) 78b6bb1d24dbf0 Jacopo Mondi 2019-10-17 510 return; 78b6bb1d24dbf0 Jacopo Mondi 2019-10-17 511 78b6bb1d24dbf0 Jacopo Mondi 2019-10-17 512 if (drm_lut) 78b6bb1d24dbf0 Jacopo Mondi 2019-10-17 513 cmm_config.lut.table = (struct drm_color_lut *)drm_lut->data; 78b6bb1d24dbf0 Jacopo Mondi 2019-10-17 514 78b6bb1d24dbf0 Jacopo Mondi 2019-10-17 @515 rcar_cmm_setup(rcrtc->cmm, &cmm_config); 78b6bb1d24dbf0 Jacopo Mondi 2019-10-17 516 } 78b6bb1d24dbf0 Jacopo Mondi 2019-10-17 517 17f6b8a0270f7a Laurent Pinchart 2015-02-18 518 /* ----------------------------------------------------------------------------- 17f6b8a0270f7a Laurent Pinchart 2015-02-18 519 * Start/Stop and Suspend/Resume 17f6b8a0270f7a Laurent Pinchart 2015-02-18 520 */ 17f6b8a0270f7a Laurent Pinchart 2015-02-18 521 f4112469cdb6da Laurent Pinchart 2017-06-27 522 static void rcar_du_crtc_setup(struct rcar_du_crtc *rcrtc) 4bf8e1962f91ee Laurent Pinchart 2013-06-19 523 { 4bf8e1962f91ee Laurent Pinchart 2013-06-19 524 /* Set display off and background to black */ 4bf8e1962f91ee Laurent Pinchart 2013-06-19 525 rcar_du_crtc_write(rcrtc, DOOR, DOOR_RGB(0, 0, 0)); 4bf8e1962f91ee Laurent Pinchart 2013-06-19 526 rcar_du_crtc_write(rcrtc, BPOR, BPOR_RGB(0, 0, 0)); 4bf8e1962f91ee Laurent Pinchart 2013-06-19 527 4bf8e1962f91ee Laurent Pinchart 2013-06-19 528 /* Configure display timings and output routing */ 4bf8e1962f91ee Laurent Pinchart 2013-06-19 529 rcar_du_crtc_set_display_timing(rcrtc); 2fd22dba23e384 Laurent Pinchart 2013-06-17 530 rcar_du_group_set_routing(rcrtc->group); 4bf8e1962f91ee Laurent Pinchart 2013-06-19 531 52055bafa1ffcd Laurent Pinchart 2015-02-23 532 /* Start with all planes disabled. */ 52055bafa1ffcd Laurent Pinchart 2015-02-23 533 rcar_du_group_write(rcrtc->group, rcrtc->index % 2 ? DS2PR : DS1PR, 0); 4bf8e1962f91ee Laurent Pinchart 2013-06-19 534 f4112469cdb6da Laurent Pinchart 2017-06-27 535 /* Enable the VSP compositor. */ b764f2f66ed48c Kieran Bingham 2019-03-15 536 if (rcar_du_has(rcrtc->dev, RCAR_DU_FEATURE_VSP1_SOURCE)) f4112469cdb6da Laurent Pinchart 2017-06-27 537 rcar_du_vsp_enable(rcrtc); f4112469cdb6da Laurent Pinchart 2017-06-27 538 f4112469cdb6da Laurent Pinchart 2017-06-27 539 /* Turn vertical blanking interrupt reporting on. */ f4112469cdb6da Laurent Pinchart 2017-06-27 540 drm_crtc_vblank_on(&rcrtc->crtc); f4112469cdb6da Laurent Pinchart 2017-06-27 541 } f4112469cdb6da Laurent Pinchart 2017-06-27 542 0bb63534fdf3bc Laurent Pinchart 2017-07-14 543 static int rcar_du_crtc_get(struct rcar_du_crtc *rcrtc) 0bb63534fdf3bc Laurent Pinchart 2017-07-14 544 { 0bb63534fdf3bc Laurent Pinchart 2017-07-14 545 int ret; 0bb63534fdf3bc Laurent Pinchart 2017-07-14 546 0bb63534fdf3bc Laurent Pinchart 2017-07-14 547 /* 0bb63534fdf3bc Laurent Pinchart 2017-07-14 548 * Guard against double-get, as the function is called from both the 0bb63534fdf3bc Laurent Pinchart 2017-07-14 549 * .atomic_enable() and .atomic_begin() handlers. 0bb63534fdf3bc Laurent Pinchart 2017-07-14 550 */ 0bb63534fdf3bc Laurent Pinchart 2017-07-14 551 if (rcrtc->initialized) 0bb63534fdf3bc Laurent Pinchart 2017-07-14 552 return 0; 0bb63534fdf3bc Laurent Pinchart 2017-07-14 553 0bb63534fdf3bc Laurent Pinchart 2017-07-14 554 ret = clk_prepare_enable(rcrtc->clock); 0bb63534fdf3bc Laurent Pinchart 2017-07-14 555 if (ret < 0) 0bb63534fdf3bc Laurent Pinchart 2017-07-14 556 return ret; 0bb63534fdf3bc Laurent Pinchart 2017-07-14 557 0bb63534fdf3bc Laurent Pinchart 2017-07-14 558 ret = clk_prepare_enable(rcrtc->extclock); 0bb63534fdf3bc Laurent Pinchart 2017-07-14 559 if (ret < 0) 0bb63534fdf3bc Laurent Pinchart 2017-07-14 560 goto error_clock; 0bb63534fdf3bc Laurent Pinchart 2017-07-14 561 0bb63534fdf3bc Laurent Pinchart 2017-07-14 562 ret = rcar_du_group_get(rcrtc->group); 0bb63534fdf3bc Laurent Pinchart 2017-07-14 563 if (ret < 0) 0bb63534fdf3bc Laurent Pinchart 2017-07-14 564 goto error_group; 0bb63534fdf3bc Laurent Pinchart 2017-07-14 565 0bb63534fdf3bc Laurent Pinchart 2017-07-14 566 rcar_du_crtc_setup(rcrtc); 0bb63534fdf3bc Laurent Pinchart 2017-07-14 567 rcrtc->initialized = true; 0bb63534fdf3bc Laurent Pinchart 2017-07-14 568 0bb63534fdf3bc Laurent Pinchart 2017-07-14 569 return 0; 0bb63534fdf3bc Laurent Pinchart 2017-07-14 570 0bb63534fdf3bc Laurent Pinchart 2017-07-14 571 error_group: 0bb63534fdf3bc Laurent Pinchart 2017-07-14 572 clk_disable_unprepare(rcrtc->extclock); 0bb63534fdf3bc Laurent Pinchart 2017-07-14 573 error_clock: 0bb63534fdf3bc Laurent Pinchart 2017-07-14 574 clk_disable_unprepare(rcrtc->clock); 0bb63534fdf3bc Laurent Pinchart 2017-07-14 575 return ret; 0bb63534fdf3bc Laurent Pinchart 2017-07-14 576 } 0bb63534fdf3bc Laurent Pinchart 2017-07-14 577 0bb63534fdf3bc Laurent Pinchart 2017-07-14 578 static void rcar_du_crtc_put(struct rcar_du_crtc *rcrtc) 0bb63534fdf3bc Laurent Pinchart 2017-07-14 579 { 0bb63534fdf3bc Laurent Pinchart 2017-07-14 580 rcar_du_group_put(rcrtc->group); 0bb63534fdf3bc Laurent Pinchart 2017-07-14 581 0bb63534fdf3bc Laurent Pinchart 2017-07-14 582 clk_disable_unprepare(rcrtc->extclock); 0bb63534fdf3bc Laurent Pinchart 2017-07-14 583 clk_disable_unprepare(rcrtc->clock); 0bb63534fdf3bc Laurent Pinchart 2017-07-14 584 0bb63534fdf3bc Laurent Pinchart 2017-07-14 585 rcrtc->initialized = false; 0bb63534fdf3bc Laurent Pinchart 2017-07-14 586 } 0bb63534fdf3bc Laurent Pinchart 2017-07-14 587 f4112469cdb6da Laurent Pinchart 2017-06-27 588 static void rcar_du_crtc_start(struct rcar_du_crtc *rcrtc) f4112469cdb6da Laurent Pinchart 2017-06-27 589 { f4112469cdb6da Laurent Pinchart 2017-06-27 590 bool interlaced; f4112469cdb6da Laurent Pinchart 2017-06-27 591 f3bafc123ba867 Laurent Pinchart 2017-07-11 592 /* f3bafc123ba867 Laurent Pinchart 2017-07-11 593 * Select master sync mode. This enables display operation in master 4bf8e1962f91ee Laurent Pinchart 2013-06-19 594 * sync mode (with the HSYNC and VSYNC signals configured as outputs and 4bf8e1962f91ee Laurent Pinchart 2013-06-19 595 * actively driven). 4bf8e1962f91ee Laurent Pinchart 2013-06-19 596 */ 906eff7fcada41 Laurent Pinchart 2014-12-09 597 interlaced = rcrtc->crtc.mode.flags & DRM_MODE_FLAG_INTERLACE; 9144adc5e5a995 Laurent Pinchart 2018-08-22 598 rcar_du_crtc_dsysr_clr_set(rcrtc, DSYSR_TVM_MASK | DSYSR_SCM_MASK, 906eff7fcada41 Laurent Pinchart 2014-12-09 599 (interlaced ? DSYSR_SCM_INT_VIDEO : 0) | 906eff7fcada41 Laurent Pinchart 2014-12-09 600 DSYSR_TVM_MASTER); 4bf8e1962f91ee Laurent Pinchart 2013-06-19 601 cb2025d2509ffa Laurent Pinchart 2013-06-16 602 rcar_du_group_start_stop(rcrtc->group, true); 4bf8e1962f91ee Laurent Pinchart 2013-06-19 603 } 4bf8e1962f91ee Laurent Pinchart 2013-06-19 604 641307df71fe77 Laurent Pinchart 2017-07-29 605 static void rcar_du_crtc_disable_planes(struct rcar_du_crtc *rcrtc) 641307df71fe77 Laurent Pinchart 2017-07-29 606 { b764f2f66ed48c Kieran Bingham 2019-03-15 607 struct rcar_du_device *rcdu = rcrtc->dev; 641307df71fe77 Laurent Pinchart 2017-07-29 608 struct drm_crtc *crtc = &rcrtc->crtc; 641307df71fe77 Laurent Pinchart 2017-07-29 609 u32 status; 641307df71fe77 Laurent Pinchart 2017-07-29 610 641307df71fe77 Laurent Pinchart 2017-07-29 611 /* Make sure vblank interrupts are enabled. */ 641307df71fe77 Laurent Pinchart 2017-07-29 612 drm_crtc_vblank_get(crtc); 641307df71fe77 Laurent Pinchart 2017-07-29 613 641307df71fe77 Laurent Pinchart 2017-07-29 614 /* 641307df71fe77 Laurent Pinchart 2017-07-29 615 * Disable planes and calculate how many vertical blanking interrupts we 641307df71fe77 Laurent Pinchart 2017-07-29 616 * have to wait for. If a vertical blanking interrupt has been triggered 641307df71fe77 Laurent Pinchart 2017-07-29 617 * but not processed yet, we don't know whether it occurred before or 641307df71fe77 Laurent Pinchart 2017-07-29 618 * after the planes got disabled. We thus have to wait for two vblank 641307df71fe77 Laurent Pinchart 2017-07-29 619 * interrupts in that case. 641307df71fe77 Laurent Pinchart 2017-07-29 620 */ 641307df71fe77 Laurent Pinchart 2017-07-29 621 spin_lock_irq(&rcrtc->vblank_lock); 641307df71fe77 Laurent Pinchart 2017-07-29 622 rcar_du_group_write(rcrtc->group, rcrtc->index % 2 ? DS2PR : DS1PR, 0); 641307df71fe77 Laurent Pinchart 2017-07-29 623 status = rcar_du_crtc_read(rcrtc, DSSR); 641307df71fe77 Laurent Pinchart 2017-07-29 624 rcrtc->vblank_count = status & DSSR_VBK ? 2 : 1; 641307df71fe77 Laurent Pinchart 2017-07-29 625 spin_unlock_irq(&rcrtc->vblank_lock); 641307df71fe77 Laurent Pinchart 2017-07-29 626 641307df71fe77 Laurent Pinchart 2017-07-29 627 if (!wait_event_timeout(rcrtc->vblank_wait, rcrtc->vblank_count == 0, 641307df71fe77 Laurent Pinchart 2017-07-29 628 msecs_to_jiffies(100))) 641307df71fe77 Laurent Pinchart 2017-07-29 629 dev_warn(rcdu->dev, "vertical blanking timeout\n"); 641307df71fe77 Laurent Pinchart 2017-07-29 630 641307df71fe77 Laurent Pinchart 2017-07-29 631 drm_crtc_vblank_put(crtc); 641307df71fe77 Laurent Pinchart 2017-07-29 632 } 641307df71fe77 Laurent Pinchart 2017-07-29 633 4bf8e1962f91ee Laurent Pinchart 2013-06-19 634 static void rcar_du_crtc_stop(struct rcar_du_crtc *rcrtc) 4bf8e1962f91ee Laurent Pinchart 2013-06-19 635 { 4bf8e1962f91ee Laurent Pinchart 2013-06-19 636 struct drm_crtc *crtc = &rcrtc->crtc; 4bf8e1962f91ee Laurent Pinchart 2013-06-19 637 f3bafc123ba867 Laurent Pinchart 2017-07-11 638 /* f3bafc123ba867 Laurent Pinchart 2017-07-11 639 * Disable all planes and wait for the change to take effect. This is 641307df71fe77 Laurent Pinchart 2017-07-29 640 * required as the plane enable registers are updated on vblank, and no 641307df71fe77 Laurent Pinchart 2017-07-29 641 * vblank will occur once the CRTC is stopped. Disabling planes when 641307df71fe77 Laurent Pinchart 2017-07-29 642 * starting the CRTC thus wouldn't be enough as it would start scanning 641307df71fe77 Laurent Pinchart 2017-07-29 643 * out immediately from old frame buffers until the next vblank. 911316fe2f4113 Laurent Pinchart 2015-05-14 644 * 911316fe2f4113 Laurent Pinchart 2015-05-14 645 * This increases the CRTC stop delay, especially when multiple CRTCs 911316fe2f4113 Laurent Pinchart 2015-05-14 646 * are stopped in one operation as we now wait for one vblank per CRTC. 911316fe2f4113 Laurent Pinchart 2015-05-14 647 * Whether this can be improved needs to be researched. 911316fe2f4113 Laurent Pinchart 2015-05-14 648 */ 641307df71fe77 Laurent Pinchart 2017-07-29 649 rcar_du_crtc_disable_planes(rcrtc); 911316fe2f4113 Laurent Pinchart 2015-05-14 650 f3bafc123ba867 Laurent Pinchart 2017-07-11 651 /* f3bafc123ba867 Laurent Pinchart 2017-07-11 652 * Disable vertical blanking interrupt reporting. We first need to wait 0cd90a542885a1 Laurent Pinchart 2015-02-18 653 * for page flip completion before stopping the CRTC as userspace 0cd90a542885a1 Laurent Pinchart 2015-02-18 654 * expects page flips to eventually complete. 36693f3c3254d9 Laurent Pinchart 2015-02-18 655 */ 36693f3c3254d9 Laurent Pinchart 2015-02-18 656 rcar_du_crtc_wait_page_flip(rcrtc); 0cd90a542885a1 Laurent Pinchart 2015-02-18 657 drm_crtc_vblank_off(crtc); 36693f3c3254d9 Laurent Pinchart 2015-02-18 658 6d62ef3ac30be7 Laurent Pinchart 2015-09-07 659 /* Disable the VSP compositor. */ b764f2f66ed48c Kieran Bingham 2019-03-15 660 if (rcar_du_has(rcrtc->dev, RCAR_DU_FEATURE_VSP1_SOURCE)) 6d62ef3ac30be7 Laurent Pinchart 2015-09-07 661 rcar_du_vsp_disable(rcrtc); 6d62ef3ac30be7 Laurent Pinchart 2015-09-07 662 78b6bb1d24dbf0 Jacopo Mondi 2019-10-17 663 if (rcrtc->cmm) 78b6bb1d24dbf0 Jacopo Mondi 2019-10-17 @664 rcar_cmm_disable(rcrtc->cmm); 78b6bb1d24dbf0 Jacopo Mondi 2019-10-17 665 f3bafc123ba867 Laurent Pinchart 2017-07-11 666 /* f3bafc123ba867 Laurent Pinchart 2017-07-11 667 * Select switch sync mode. This stops display operation and configures 4bf8e1962f91ee Laurent Pinchart 2013-06-19 668 * the HSYNC and VSYNC signals as inputs. ffd15c3e7898cf Laurent Pinchart 2018-08-22 669 * ffd15c3e7898cf Laurent Pinchart 2018-08-22 670 * TODO: Find another way to stop the display for DUs that don't support ffd15c3e7898cf Laurent Pinchart 2018-08-22 671 * TVM sync. 4bf8e1962f91ee Laurent Pinchart 2013-06-19 672 */ b764f2f66ed48c Kieran Bingham 2019-03-15 673 if (rcar_du_has(rcrtc->dev, RCAR_DU_FEATURE_TVM_SYNC)) ffd15c3e7898cf Laurent Pinchart 2018-08-22 674 rcar_du_crtc_dsysr_clr_set(rcrtc, DSYSR_TVM_MASK, ffd15c3e7898cf Laurent Pinchart 2018-08-22 675 DSYSR_TVM_SWITCH); 4bf8e1962f91ee Laurent Pinchart 2013-06-19 676 cb2025d2509ffa Laurent Pinchart 2013-06-16 677 rcar_du_group_start_stop(rcrtc->group, false); 4bf8e1962f91ee Laurent Pinchart 2013-06-19 678 } 4bf8e1962f91ee Laurent Pinchart 2013-06-19 679 :::::: The code at line 515 was first introduced by commit :::::: 78b6bb1d24dbf094a4743bae1ee7c020e8193f25 drm: rcar-du: crtc: Control CMM operations :::::: TO: Jacopo Mondi <jacopo+renesas(a)jmondi.org&gt; :::::: CC: Laurent Pinchart <laurent.pinchart+renesas(a)ideasonboard.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org