Hi Sai, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on arm64/for-next/core] [also build test WARNING on rostedt-trace/for-next arnd-asm-generic/master arm-perf/for-next/perf v5.16-rc4 next-20211207] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Sai-Prakash-Ranjan/tracing-rwmmio-arm64-Add-support-to-trace-register-reads-writes/20211206-163212 base: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core config: arm64-randconfig-r022-20211207 (https://download.01.org/0day-ci/archive/20211207/202112072058.SZ9tPvIm-lkp@xxxxxxxxx/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 097a1cb1d5ebb3a0ec4bcaed8ba3ff6a8e33c00a) 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 # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://github.com/0day-ci/linux/commit/0775ecf0f452d6b76b161d009dab52c90270755a git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Sai-Prakash-Ranjan/tracing-rwmmio-arm64-Add-support-to-trace-register-reads-writes/20211206-163212 git checkout 0775ecf0f452d6b76b161d009dab52c90270755a # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/gpu/drm/meson/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/gpu/drm/meson/meson_viu.c:480:45: warning: implicit conversion from 'unsigned long' to 'u32' (aka 'unsigned int') changes value from 18446744071814774785 to 2400190465 [-Wconstant-conversion] VIU_OSD_BLEND_BLEN2_PREMULT_EN(1) | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^ 1 warning generated. vim +480 drivers/gpu/drm/meson/meson_viu.c 1b85270ff156d56 Neil Armstrong 2019-10-21 413 bbbe775ec5b5dac Neil Armstrong 2016-11-10 414 void meson_viu_init(struct meson_drm *priv) bbbe775ec5b5dac Neil Armstrong 2016-11-10 415 { bbbe775ec5b5dac Neil Armstrong 2016-11-10 416 uint32_t reg; bbbe775ec5b5dac Neil Armstrong 2016-11-10 417 bbbe775ec5b5dac Neil Armstrong 2016-11-10 418 /* Disable OSDs */ 147ae1cbaa18429 Julien Masson 2019-06-24 419 writel_bits_relaxed(VIU_OSD1_OSD_BLK_ENABLE | VIU_OSD1_OSD_ENABLE, 0, bbbe775ec5b5dac Neil Armstrong 2016-11-10 420 priv->io_base + _REG(VIU_OSD1_CTRL_STAT)); 147ae1cbaa18429 Julien Masson 2019-06-24 421 writel_bits_relaxed(VIU_OSD1_OSD_BLK_ENABLE | VIU_OSD1_OSD_ENABLE, 0, bbbe775ec5b5dac Neil Armstrong 2016-11-10 422 priv->io_base + _REG(VIU_OSD2_CTRL_STAT)); bbbe775ec5b5dac Neil Armstrong 2016-11-10 423 bbbe775ec5b5dac Neil Armstrong 2016-11-10 424 /* On GXL/GXM, Use the 10bit HDR conversion matrix */ 528a25d040bc212 Julien Masson 2019-08-22 425 if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM) || 528a25d040bc212 Julien Masson 2019-08-22 426 meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXL)) bbbe775ec5b5dac Neil Armstrong 2016-11-10 427 meson_viu_load_matrix(priv); bf33677a3c394bb Christian Hewitt 2021-08-06 428 else if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A)) { 728883948b0d3c0 Neil Armstrong 2019-03-25 429 meson_viu_set_g12a_osd1_matrix(priv, RGB709_to_YUV709l_coeff, 728883948b0d3c0 Neil Armstrong 2019-03-25 430 true); bf33677a3c394bb Christian Hewitt 2021-08-06 431 /* fix green/pink color distortion from vendor u-boot */ bf33677a3c394bb Christian Hewitt 2021-08-06 432 writel_bits_relaxed(OSD1_HDR2_CTRL_REG_ONLY_MAT | bf33677a3c394bb Christian Hewitt 2021-08-06 433 OSD1_HDR2_CTRL_VDIN0_HDR2_TOP_EN, 0, bf33677a3c394bb Christian Hewitt 2021-08-06 434 priv->io_base + _REG(OSD1_HDR2_CTRL)); bf33677a3c394bb Christian Hewitt 2021-08-06 435 } bbbe775ec5b5dac Neil Armstrong 2016-11-10 436 bbbe775ec5b5dac Neil Armstrong 2016-11-10 437 /* Initialize OSD1 fifo control register */ 147ae1cbaa18429 Julien Masson 2019-06-24 438 reg = VIU_OSD_DDR_PRIORITY_URGENT | 24e0d4058eff7cd Neil Armstrong 2019-10-21 439 VIU_OSD_HOLD_FIFO_LINES(31) | 147ae1cbaa18429 Julien Masson 2019-06-24 440 VIU_OSD_FIFO_DEPTH_VAL(32) | /* fifo_depth_val: 32*8=256 */ 147ae1cbaa18429 Julien Masson 2019-06-24 441 VIU_OSD_WORDS_PER_BURST(4) | /* 4 words in 1 burst */ 147ae1cbaa18429 Julien Masson 2019-06-24 442 VIU_OSD_FIFO_LIMITS(2); /* fifo_lim: 2*16=32 */ 147ae1cbaa18429 Julien Masson 2019-06-24 443 528a25d040bc212 Julien Masson 2019-08-22 444 if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A)) 17f64701ea6f541 Martin Blumenstingl 2020-06-20 445 reg |= VIU_OSD_BURST_LENGTH_32; 728883948b0d3c0 Neil Armstrong 2019-03-25 446 else 17f64701ea6f541 Martin Blumenstingl 2020-06-20 447 reg |= VIU_OSD_BURST_LENGTH_64; 147ae1cbaa18429 Julien Masson 2019-06-24 448 bbbe775ec5b5dac Neil Armstrong 2016-11-10 449 writel_relaxed(reg, priv->io_base + _REG(VIU_OSD1_FIFO_CTRL_STAT)); bbbe775ec5b5dac Neil Armstrong 2016-11-10 450 writel_relaxed(reg, priv->io_base + _REG(VIU_OSD2_FIFO_CTRL_STAT)); bbbe775ec5b5dac Neil Armstrong 2016-11-10 451 bbbe775ec5b5dac Neil Armstrong 2016-11-10 452 /* Set OSD alpha replace value */ bbbe775ec5b5dac Neil Armstrong 2016-11-10 453 writel_bits_relaxed(0xff << OSD_REPLACE_SHIFT, bbbe775ec5b5dac Neil Armstrong 2016-11-10 454 0xff << OSD_REPLACE_SHIFT, bbbe775ec5b5dac Neil Armstrong 2016-11-10 455 priv->io_base + _REG(VIU_OSD1_CTRL_STAT2)); bbbe775ec5b5dac Neil Armstrong 2016-11-10 456 writel_bits_relaxed(0xff << OSD_REPLACE_SHIFT, bbbe775ec5b5dac Neil Armstrong 2016-11-10 457 0xff << OSD_REPLACE_SHIFT, bbbe775ec5b5dac Neil Armstrong 2016-11-10 458 priv->io_base + _REG(VIU_OSD2_CTRL_STAT2)); bbbe775ec5b5dac Neil Armstrong 2016-11-10 459 f9a2348196d1ab9 Neil Armstrong 2018-11-06 460 /* Disable VD1 AFBC */ 147ae1cbaa18429 Julien Masson 2019-06-24 461 /* di_mif0_en=0 mif0_to_vpp_en=0 di_mad_en=0 and afbc vd1 set=0*/ 147ae1cbaa18429 Julien Masson 2019-06-24 462 writel_bits_relaxed(VIU_CTRL0_VD1_AFBC_MASK, 0, f9a2348196d1ab9 Neil Armstrong 2018-11-06 463 priv->io_base + _REG(VIU_MISC_CTRL0)); f9a2348196d1ab9 Neil Armstrong 2018-11-06 464 writel_relaxed(0, priv->io_base + _REG(AFBC_ENABLE)); f9a2348196d1ab9 Neil Armstrong 2018-11-06 465 f9a2348196d1ab9 Neil Armstrong 2018-11-06 466 writel_relaxed(0x00FF00C0, f9a2348196d1ab9 Neil Armstrong 2018-11-06 467 priv->io_base + _REG(VD1_IF0_LUMA_FIFO_SIZE)); f9a2348196d1ab9 Neil Armstrong 2018-11-06 468 writel_relaxed(0x00FF00C0, f9a2348196d1ab9 Neil Armstrong 2018-11-06 469 priv->io_base + _REG(VD2_IF0_LUMA_FIFO_SIZE)); f9a2348196d1ab9 Neil Armstrong 2018-11-06 470 528a25d040bc212 Julien Masson 2019-08-22 471 if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A)) { 147ae1cbaa18429 Julien Masson 2019-06-24 472 writel_relaxed(VIU_OSD_BLEND_REORDER(0, 1) | 147ae1cbaa18429 Julien Masson 2019-06-24 473 VIU_OSD_BLEND_REORDER(1, 0) | 147ae1cbaa18429 Julien Masson 2019-06-24 474 VIU_OSD_BLEND_REORDER(2, 0) | 147ae1cbaa18429 Julien Masson 2019-06-24 475 VIU_OSD_BLEND_REORDER(3, 0) | 147ae1cbaa18429 Julien Masson 2019-06-24 476 VIU_OSD_BLEND_DIN_EN(1) | 147ae1cbaa18429 Julien Masson 2019-06-24 477 VIU_OSD_BLEND1_DIN3_BYPASS_TO_DOUT1 | 147ae1cbaa18429 Julien Masson 2019-06-24 478 VIU_OSD_BLEND1_DOUT_BYPASS_TO_BLEND2 | 147ae1cbaa18429 Julien Masson 2019-06-24 479 VIU_OSD_BLEND_DIN0_BYPASS_TO_DOUT0 | 147ae1cbaa18429 Julien Masson 2019-06-24 @480 VIU_OSD_BLEND_BLEN2_PREMULT_EN(1) | --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx