tree: https://chromium.googlesource.com/chromiumos/third_party/kernel chromeos-5.10 head: ca2109258bc14e3ec201eef4b63025b1aeeea34b commit: 05aba0d48a134769ff68304f0291e63d31573cd1 [315/1036] ANDROID: include: drm: increase DRM max property count to 64 config: xtensa-randconfig-r016-20201217 (attached as .config) compiler: xtensa-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git remote add chrome-os https://chromium.googlesource.com/chromiumos/third_party/kernel git fetch --no-tags chrome-os chromeos-5.10 git checkout 05aba0d48a134769ff68304f0291e63d31573cd1 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=xtensa If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): drivers/gpu/drm/exynos/exynos_drm_fimd.c: In function 'fimd_win_set_pixfmt.isra.0': 710 | } | ^ vim +710 drivers/gpu/drm/exynos/exynos_drm_fimd.c 1c248b7d2960fae Inki Dae 2011-10-04 636 2eeb2e5e6634dbb Gustavo Padovan 2015-08-03 637 static void fimd_win_set_pixfmt(struct fimd_context *ctx, unsigned int win, 6f8ee5c21722f93 Christoph Manszewski 2018-10-25 638 struct drm_framebuffer *fb, int width) 1c248b7d2960fae Inki Dae 2011-10-04 639 { 6f8ee5c21722f93 Christoph Manszewski 2018-10-25 640 struct exynos_drm_plane plane = ctx->planes[win]; 6f8ee5c21722f93 Christoph Manszewski 2018-10-25 641 struct exynos_drm_plane_state *state = 6f8ee5c21722f93 Christoph Manszewski 2018-10-25 642 to_exynos_plane_state(plane.base.state); 6f8ee5c21722f93 Christoph Manszewski 2018-10-25 643 uint32_t pixel_format = fb->format->format; 6f8ee5c21722f93 Christoph Manszewski 2018-10-25 644 unsigned int alpha = state->base.alpha; 6f8ee5c21722f93 Christoph Manszewski 2018-10-25 645 u32 val = WINCONx_ENWIN; 3b5129b3a7c62fd Christoph Manszewski 2018-10-25 646 unsigned int pixel_alpha; 3b5129b3a7c62fd Christoph Manszewski 2018-10-25 647 3b5129b3a7c62fd Christoph Manszewski 2018-10-25 648 if (fb->format->has_alpha) 3b5129b3a7c62fd Christoph Manszewski 2018-10-25 649 pixel_alpha = state->base.pixel_blend_mode; 3b5129b3a7c62fd Christoph Manszewski 2018-10-25 650 else 3b5129b3a7c62fd Christoph Manszewski 2018-10-25 651 pixel_alpha = DRM_MODE_BLEND_PIXEL_NONE; 1c248b7d2960fae Inki Dae 2011-10-04 652 5cc4621a17b1e63 Inki Dae 2013-08-20 653 /* 5cc4621a17b1e63 Inki Dae 2013-08-20 654 * In case of s3c64xx, window 0 doesn't support alpha channel. 5cc4621a17b1e63 Inki Dae 2013-08-20 655 * So the request format is ARGB8888 then change it to XRGB8888. 5cc4621a17b1e63 Inki Dae 2013-08-20 656 */ 5cc4621a17b1e63 Inki Dae 2013-08-20 657 if (ctx->driver_data->has_limited_fmt && !win) { 8b704d8a3f5c9a9 Marek Szyprowski 2015-11-30 658 if (pixel_format == DRM_FORMAT_ARGB8888) 8b704d8a3f5c9a9 Marek Szyprowski 2015-11-30 659 pixel_format = DRM_FORMAT_XRGB8888; 5cc4621a17b1e63 Inki Dae 2013-08-20 660 } 5cc4621a17b1e63 Inki Dae 2013-08-20 661 8b704d8a3f5c9a9 Marek Szyprowski 2015-11-30 662 switch (pixel_format) { a4f38a80f62bb61 Inki Dae 2013-08-20 663 case DRM_FORMAT_C8: 1c248b7d2960fae Inki Dae 2011-10-04 664 val |= WINCON0_BPPMODE_8BPP_PALETTE; 1c248b7d2960fae Inki Dae 2011-10-04 665 val |= WINCONx_BURSTLEN_8WORD; 1c248b7d2960fae Inki Dae 2011-10-04 666 val |= WINCONx_BYTSWP; 1c248b7d2960fae Inki Dae 2011-10-04 667 break; a4f38a80f62bb61 Inki Dae 2013-08-20 668 case DRM_FORMAT_XRGB1555: a4f38a80f62bb61 Inki Dae 2013-08-20 669 val |= WINCON0_BPPMODE_16BPP_1555; a4f38a80f62bb61 Inki Dae 2013-08-20 670 val |= WINCONx_HAWSWP; a4f38a80f62bb61 Inki Dae 2013-08-20 671 val |= WINCONx_BURSTLEN_16WORD; a4f38a80f62bb61 Inki Dae 2013-08-20 672 break; a4f38a80f62bb61 Inki Dae 2013-08-20 673 case DRM_FORMAT_RGB565: 1c248b7d2960fae Inki Dae 2011-10-04 674 val |= WINCON0_BPPMODE_16BPP_565; 1c248b7d2960fae Inki Dae 2011-10-04 675 val |= WINCONx_HAWSWP; 1c248b7d2960fae Inki Dae 2011-10-04 676 val |= WINCONx_BURSTLEN_16WORD; 1c248b7d2960fae Inki Dae 2011-10-04 677 break; a4f38a80f62bb61 Inki Dae 2013-08-20 678 case DRM_FORMAT_XRGB8888: 1c248b7d2960fae Inki Dae 2011-10-04 679 val |= WINCON0_BPPMODE_24BPP_888; 1c248b7d2960fae Inki Dae 2011-10-04 680 val |= WINCONx_WSWP; 1c248b7d2960fae Inki Dae 2011-10-04 681 val |= WINCONx_BURSTLEN_16WORD; 1c248b7d2960fae Inki Dae 2011-10-04 682 break; a4f38a80f62bb61 Inki Dae 2013-08-20 683 case DRM_FORMAT_ARGB8888: 5b7b1b7fa10145c Tobias Jakobi 2017-08-22 684 default: 3b5129b3a7c62fd Christoph Manszewski 2018-10-25 685 val |= WINCON1_BPPMODE_25BPP_A1888; 1c248b7d2960fae Inki Dae 2011-10-04 686 val |= WINCONx_WSWP; 1c248b7d2960fae Inki Dae 2011-10-04 687 val |= WINCONx_BURSTLEN_16WORD; 1c248b7d2960fae Inki Dae 2011-10-04 688 break; 1c248b7d2960fae Inki Dae 2011-10-04 689 } 1c248b7d2960fae Inki Dae 2011-10-04 690 66367461e573321 Rahul Sharma 2014-05-07 691 /* 8b704d8a3f5c9a9 Marek Szyprowski 2015-11-30 692 * Setting dma-burst to 16Word causes permanent tearing for very small 8b704d8a3f5c9a9 Marek Szyprowski 2015-11-30 693 * buffers, e.g. cursor buffer. Burst Mode switching which based on 8b704d8a3f5c9a9 Marek Szyprowski 2015-11-30 694 * plane size is not recommended as plane size varies alot towards the 8b704d8a3f5c9a9 Marek Szyprowski 2015-11-30 695 * end of the screen and rapid movement causes unstable DMA, but it is 8b704d8a3f5c9a9 Marek Szyprowski 2015-11-30 696 * still better to change dma-burst than displaying garbage. 66367461e573321 Rahul Sharma 2014-05-07 697 */ 66367461e573321 Rahul Sharma 2014-05-07 698 8b704d8a3f5c9a9 Marek Szyprowski 2015-11-30 699 if (width < MIN_FB_WIDTH_FOR_16WORD_BURST) { 66367461e573321 Rahul Sharma 2014-05-07 700 val &= ~WINCONx_BURSTLEN_MASK; 66367461e573321 Rahul Sharma 2014-05-07 701 val |= WINCONx_BURSTLEN_4WORD; 66367461e573321 Rahul Sharma 2014-05-07 702 } 3b5129b3a7c62fd Christoph Manszewski 2018-10-25 703 fimd_set_bits(ctx, WINCON(win), ~WINCONx_BLEND_MODE_MASK, val); 453b44a3f6f3f43 Gustavo Padovan 2015-04-01 704 453b44a3f6f3f43 Gustavo Padovan 2015-04-01 705 /* hardware window 0 doesn't support alpha channel. */ 3b5129b3a7c62fd Christoph Manszewski 2018-10-25 706 if (win != 0) { 3b5129b3a7c62fd Christoph Manszewski 2018-10-25 707 fimd_win_set_bldmod(ctx, win, alpha, pixel_alpha); 3b5129b3a7c62fd Christoph Manszewski 2018-10-25 708 fimd_win_set_bldeq(ctx, win, alpha, pixel_alpha); 3b5129b3a7c62fd Christoph Manszewski 2018-10-25 709 } 1c248b7d2960fae Inki Dae 2011-10-04 @710 } 1c248b7d2960fae Inki Dae 2011-10-04 711 :::::: The code at line 710 was first introduced by commit :::::: 1c248b7d2960faec3e1b8f3f9c5d9d0df28e0a3c DRM: add DRM Driver for Samsung SoC EXYNOS4210. :::::: TO: Inki Dae <inki.dae(a)samsung.com&gt; :::::: CC: Dave Airlie <airlied(a)redhat.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org