From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5C8232C82 for ; Fri, 21 Jan 2022 05:56:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1642744596; x=1674280596; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=zpNm2Ggem8XpBfHfA1dmrV91N9MOBYjEMGPmDHp5OUc=; b=I7AVbg6mBjXjfG9LDaLxvGClz5wTZYRGQxjmgU81FdMhp63nx1ARMocV m+WOWI1ThywL2sNC89zUGkwpbrGC5KaHFDwWNFBIAXIP2+mrbGbX9/1pR 7QmvVY3YUCr4Vxr5Ty7vOEiRhlTOmezTkSpJs5XSUHkk/s9wBmOD5KtDq HO5p8Ny0lxo6PDJ7GNa8Sf+n6meciiSbfZhbitRk/sG/aCIZa4x5ruIL1 Iqv/bppM0HY/blMK0sA+DWEtBWvcSNSBxlSaUMD8/DGYNJ91C857uvdKx sBceOXrQLWTZQ3eb3RaJeDF9Oiiw7aDsUK4aG5cGgp2KsyZcogaW5L3gp Q==; X-IronPort-AV: E=McAfee;i="6200,9189,10233"; a="269992542" X-IronPort-AV: E=Sophos;i="5.88,304,1635231600"; d="scan'208";a="269992542" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Jan 2022 21:56:35 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.88,304,1635231600"; d="scan'208";a="626622213" Received: from lkp-server01.sh.intel.com (HELO 276f1b88eecb) ([10.239.97.150]) by orsmga004.jf.intel.com with ESMTP; 20 Jan 2022 21:56:33 -0800 Received: from kbuild by 276f1b88eecb with local (Exim 4.92) (envelope-from ) id 1nAmuX-000EyX-5X; Fri, 21 Jan 2022 05:56:33 +0000 Date: Fri, 21 Jan 2022 13:55:43 +0800 From: kernel test robot To: Matthew Brost , intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org Subject: Re: [Intel-gfx] [PATCH] drm/i915/guc: Don't check CT descriptor status before CT write / read Message-ID: <202201211310.Npkld1YY-lkp@intel.com> References: <20220120182413.8074-1-matthew.brost@intel.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220120182413.8074-1-matthew.brost@intel.com> User-Agent: Mutt/1.10.1 (2018-07-13) Hi Matthew, Thank you for the patch! Yet something to improve: [auto build test ERROR on drm-intel/for-linux-next] [also build test ERROR on drm-tip/drm-tip drm-exynos/exynos-drm-next drm/drm-next tegra-drm/drm/tegra/for-next v5.16 next-20220121] [cannot apply to airlied/drm-next] [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/Matthew-Brost/drm-i915-guc-Don-t-check-CT-descriptor-status-before-CT-write-read/20220121-023033 base: git://anongit.freedesktop.org/drm-intel for-linux-next config: i386-randconfig-a005-20220117 (https://download.01.org/0day-ci/archive/20220121/202201211310.Npkld1YY-lkp@intel.com/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project f7b7138a62648f4019c55e4671682af1f851f295) 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 # https://github.com/0day-ci/linux/commit/0311a8b0f99c50ab1a666a5cdbe2b1a0a2c3c71d git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Matthew-Brost/drm-i915-guc-Don-t-check-CT-descriptor-status-before-CT-write-read/20220121-023033 git checkout 0311a8b0f99c50ab1a666a5cdbe2b1a0a2c3c71d # 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=i386 SHELL=/bin/bash drivers/gpu/drm/i915/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): >> drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c:469:1: error: unused label 'corrupted' [-Werror,-Wunused-label] corrupted: ^~~~~~~~~~ 1 error generated. vim +/corrupted +469 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c f8a58d639dd95b0 drivers/gpu/drm/i915/intel_guc_ct.c Michal Wajdeczko 2017-05-26 422 1d407096002beca drivers/gpu/drm/i915/intel_guc_ct.c Michal Wajdeczko 2018-03-26 423 /* 572f2a5cd9742c5 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Michal Wajdeczko 2021-06-15 424 * dw0: CT header (including fence) 572f2a5cd9742c5 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Michal Wajdeczko 2021-06-15 425 * dw1: HXG header (including action code) 572f2a5cd9742c5 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Michal Wajdeczko 2021-06-15 426 * dw2+: action data f8a58d639dd95b0 drivers/gpu/drm/i915/intel_guc_ct.c Michal Wajdeczko 2017-05-26 427 */ 572f2a5cd9742c5 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Michal Wajdeczko 2021-06-15 428 header = FIELD_PREP(GUC_CTB_MSG_0_FORMAT, GUC_CTB_FORMAT_HXG) | 572f2a5cd9742c5 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Michal Wajdeczko 2021-06-15 429 FIELD_PREP(GUC_CTB_MSG_0_NUM_DWORDS, len) | 572f2a5cd9742c5 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Michal Wajdeczko 2021-06-15 430 FIELD_PREP(GUC_CTB_MSG_0_FENCE, fence); f8a58d639dd95b0 drivers/gpu/drm/i915/intel_guc_ct.c Michal Wajdeczko 2017-05-26 431 1681924d8bdeb24 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Matthew Brost 2021-07-08 432 type = (flags & INTEL_GUC_CT_SEND_NB) ? GUC_HXG_TYPE_EVENT : 1681924d8bdeb24 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Matthew Brost 2021-07-08 433 GUC_HXG_TYPE_REQUEST; 1681924d8bdeb24 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Matthew Brost 2021-07-08 434 hxg = FIELD_PREP(GUC_HXG_MSG_0_TYPE, type) | 1681924d8bdeb24 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Matthew Brost 2021-07-08 435 FIELD_PREP(GUC_HXG_EVENT_MSG_0_ACTION | 1681924d8bdeb24 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Matthew Brost 2021-07-08 436 GUC_HXG_EVENT_MSG_0_DATA0, action[0]); 572f2a5cd9742c5 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Michal Wajdeczko 2021-06-15 437 572f2a5cd9742c5 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Michal Wajdeczko 2021-06-15 438 CT_DEBUG(ct, "writing (tail %u) %*ph %*ph %*ph\n", 572f2a5cd9742c5 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Michal Wajdeczko 2021-06-15 439 tail, 4, &header, 4, &hxg, 4 * (len - 1), &action[1]); 0a015ff9730c169 drivers/gpu/drm/i915/intel_guc_ct.c Michal Wajdeczko 2018-03-26 440 f8a58d639dd95b0 drivers/gpu/drm/i915/intel_guc_ct.c Michal Wajdeczko 2017-05-26 441 cmds[tail] = header; f8a58d639dd95b0 drivers/gpu/drm/i915/intel_guc_ct.c Michal Wajdeczko 2017-05-26 442 tail = (tail + 1) % size; f8a58d639dd95b0 drivers/gpu/drm/i915/intel_guc_ct.c Michal Wajdeczko 2017-05-26 443 572f2a5cd9742c5 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Michal Wajdeczko 2021-06-15 444 cmds[tail] = hxg; f8a58d639dd95b0 drivers/gpu/drm/i915/intel_guc_ct.c Michal Wajdeczko 2017-05-26 445 tail = (tail + 1) % size; f8a58d639dd95b0 drivers/gpu/drm/i915/intel_guc_ct.c Michal Wajdeczko 2017-05-26 446 f8a58d639dd95b0 drivers/gpu/drm/i915/intel_guc_ct.c Michal Wajdeczko 2017-05-26 447 for (i = 1; i < len; i++) { f8a58d639dd95b0 drivers/gpu/drm/i915/intel_guc_ct.c Michal Wajdeczko 2017-05-26 448 cmds[tail] = action[i]; f8a58d639dd95b0 drivers/gpu/drm/i915/intel_guc_ct.c Michal Wajdeczko 2017-05-26 449 tail = (tail + 1) % size; f8a58d639dd95b0 drivers/gpu/drm/i915/intel_guc_ct.c Michal Wajdeczko 2017-05-26 450 } 4c22abfbcb8456d drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Michal Wajdeczko 2020-01-20 451 GEM_BUG_ON(tail > size); f8a58d639dd95b0 drivers/gpu/drm/i915/intel_guc_ct.c Michal Wajdeczko 2017-05-26 452 d35ca600873eebc drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Matthew Brost 2021-06-02 453 /* d35ca600873eebc drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Matthew Brost 2021-06-02 454 * make sure H2G buffer update and LRC tail update (if this triggering a d35ca600873eebc drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Matthew Brost 2021-06-02 455 * submission) are visible before updating the descriptor tail d35ca600873eebc drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Matthew Brost 2021-06-02 456 */ 6b540bf6f14362a drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Matthew Brost 2021-10-14 457 intel_guc_write_barrier(ct_to_guc(ct)); d35ca600873eebc drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Matthew Brost 2021-06-02 458 75452167a2794c3 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Matthew Brost 2021-07-08 459 /* update local copies */ 75452167a2794c3 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Matthew Brost 2021-07-08 460 ctb->tail = tail; f4eb1f3fe94683c drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Matthew Brost 2021-07-21 461 GEM_BUG_ON(atomic_read(&ctb->space) < len + GUC_CTB_HDR_LEN); f4eb1f3fe94683c drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Matthew Brost 2021-07-21 462 atomic_sub(len + GUC_CTB_HDR_LEN, &ctb->space); 75452167a2794c3 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Matthew Brost 2021-07-08 463 572f2a5cd9742c5 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Michal Wajdeczko 2021-06-15 464 /* now update descriptor */ 572f2a5cd9742c5 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Michal Wajdeczko 2021-06-15 465 WRITE_ONCE(desc->tail, tail); 572f2a5cd9742c5 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Michal Wajdeczko 2021-06-15 466 f8a58d639dd95b0 drivers/gpu/drm/i915/intel_guc_ct.c Michal Wajdeczko 2017-05-26 467 return 0; 4c22abfbcb8456d drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Michal Wajdeczko 2020-01-20 468 4c22abfbcb8456d drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Michal Wajdeczko 2020-01-20 @469 corrupted: 572f2a5cd9742c5 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Michal Wajdeczko 2021-06-15 470 CT_ERROR(ct, "Corrupted descriptor head=%u tail=%u status=%#x\n", 572f2a5cd9742c5 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Michal Wajdeczko 2021-06-15 471 desc->head, desc->tail, desc->status); 572f2a5cd9742c5 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Michal Wajdeczko 2021-06-15 472 ctb->broken = true; 4c22abfbcb8456d drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c Michal Wajdeczko 2020-01-20 473 return -EPIPE; f8a58d639dd95b0 drivers/gpu/drm/i915/intel_guc_ct.c Michal Wajdeczko 2017-05-26 474 } f8a58d639dd95b0 drivers/gpu/drm/i915/intel_guc_ct.c Michal Wajdeczko 2017-05-26 475 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org