Hi Jani, I love your patch! Yet something to improve: [auto build test ERROR on drm-intel/for-linux-next] [also build test ERROR on next-20190506] [cannot apply to v5.1] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Jani-Nikula/drm-i915-add-force_probe-module-parameter-to-replace-alpha_support/20190507-045927 base: git://anongit.freedesktop.org/drm-intel for-linux-next config: x86_64-randconfig-x009-201918 (attached as .config) compiler: gcc-7 (Debian 7.3.0-1) 7.3.0 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All error/warnings (new ones prefixed by >>): In file included from arch/x86/include/asm/bug.h:83:0, from include/linux/bug.h:5, from include/linux/mmdebug.h:5, from include/linux/gfp.h:5, from include/linux/firmware.h:7, from drivers/gpu/drm/i915/intel_csr.c:25: drivers/gpu/drm/i915/intel_csr.c: In function 'intel_csr_ucode_init': >> drivers/gpu/drm/i915/intel_csr.c:532:12: error: implicit declaration of function 'IS_ALPHA_SUPPORT'; did you mean 'DP_PSR_SUPPORT'? [-Werror=implicit-function-declaration] WARN_ON(!IS_ALPHA_SUPPORT(INTEL_INFO(dev_priv))); ^ include/asm-generic/bug.h:131:25: note: in definition of macro 'WARN' int __ret_warn_on = !!(condition); \ ^~~~~~~~~ >> drivers/gpu/drm/i915/intel_csr.c:532:3: note: in expansion of macro 'WARN_ON' WARN_ON(!IS_ALPHA_SUPPORT(INTEL_INFO(dev_priv))); ^~~~~~~ cc1: some warnings being treated as errors vim +532 drivers/gpu/drm/i915/intel_csr.c eb805623 Daniel Vetter 2015-05-04 462 aa9145c4 Animesh Manna 2015-05-13 463 /** aa9145c4 Animesh Manna 2015-05-13 464 * intel_csr_ucode_init() - initialize the firmware loading. f4448375 Daniel Vetter 2015-10-28 465 * @dev_priv: i915 drm device. aa9145c4 Animesh Manna 2015-05-13 466 * aa9145c4 Animesh Manna 2015-05-13 467 * This function is called at the time of loading the display driver to read aa9145c4 Animesh Manna 2015-05-13 468 * firmware from a .bin file and copied into a internal memory. aa9145c4 Animesh Manna 2015-05-13 469 */ f4448375 Daniel Vetter 2015-10-28 470 void intel_csr_ucode_init(struct drm_i915_private *dev_priv) eb805623 Daniel Vetter 2015-05-04 471 { eb805623 Daniel Vetter 2015-05-04 472 struct intel_csr *csr = &dev_priv->csr; 8144ac59 Daniel Vetter 2015-10-28 473 8144ac59 Daniel Vetter 2015-10-28 474 INIT_WORK(&dev_priv->csr.work, csr_load_work_fn); eb805623 Daniel Vetter 2015-05-04 475 f4448375 Daniel Vetter 2015-10-28 476 if (!HAS_CSR(dev_priv)) eb805623 Daniel Vetter 2015-05-04 477 return; eb805623 Daniel Vetter 2015-05-04 478 d8a5b7d7 Jani Nikula 2018-09-26 479 /* d8a5b7d7 Jani Nikula 2018-09-26 480 * Obtain a runtime pm reference, until CSR is loaded, to avoid entering d8a5b7d7 Jani Nikula 2018-09-26 481 * runtime-suspend. d8a5b7d7 Jani Nikula 2018-09-26 482 * d8a5b7d7 Jani Nikula 2018-09-26 483 * On error, we return with the rpm wakeref held to prevent runtime d8a5b7d7 Jani Nikula 2018-09-26 484 * suspend as runtime suspend *requires* a working CSR for whatever d8a5b7d7 Jani Nikula 2018-09-26 485 * reason. d8a5b7d7 Jani Nikula 2018-09-26 486 */ 0e6e0be4 Chris Wilson 2019-01-14 487 intel_csr_runtime_pm_get(dev_priv); d8a5b7d7 Jani Nikula 2018-09-26 488 02c07b76 Lucas De Marchi 2018-11-16 489 if (INTEL_GEN(dev_priv) >= 12) { 02c07b76 Lucas De Marchi 2018-11-16 490 /* Allow to load fw via parameter using the last known size */ 02c07b76 Lucas De Marchi 2018-11-16 491 csr->max_fw_size = GEN12_CSR_MAX_FW_SIZE; 4b225248 Anusha Srivatsa 2019-03-22 492 } else if (IS_GEN(dev_priv, 11)) { 7fe78985 Jani Nikula 2018-09-27 493 csr->fw_path = ICL_CSR_PATH; 180e9d23 Jani Nikula 2018-09-26 494 csr->required_version = ICL_CSR_VERSION_REQUIRED; d8a5b7d7 Jani Nikula 2018-09-26 495 csr->max_fw_size = ICL_CSR_MAX_FW_SIZE; 180e9d23 Jani Nikula 2018-09-26 496 } else if (IS_CANNONLAKE(dev_priv)) { 7fe78985 Jani Nikula 2018-09-27 497 csr->fw_path = CNL_CSR_PATH; 180e9d23 Jani Nikula 2018-09-26 498 csr->required_version = CNL_CSR_VERSION_REQUIRED; 7fe78985 Jani Nikula 2018-09-27 499 csr->max_fw_size = CNL_CSR_MAX_FW_SIZE; 180e9d23 Jani Nikula 2018-09-26 500 } else if (IS_GEMINILAKE(dev_priv)) { 7fe78985 Jani Nikula 2018-09-27 501 csr->fw_path = GLK_CSR_PATH; 180e9d23 Jani Nikula 2018-09-26 502 csr->required_version = GLK_CSR_VERSION_REQUIRED; d8a5b7d7 Jani Nikula 2018-09-26 503 csr->max_fw_size = GLK_CSR_MAX_FW_SIZE; 180e9d23 Jani Nikula 2018-09-26 504 } else if (IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv)) { 7fe78985 Jani Nikula 2018-09-27 505 csr->fw_path = KBL_CSR_PATH; 180e9d23 Jani Nikula 2018-09-26 506 csr->required_version = KBL_CSR_VERSION_REQUIRED; 7fe78985 Jani Nikula 2018-09-27 507 csr->max_fw_size = KBL_CSR_MAX_FW_SIZE; 180e9d23 Jani Nikula 2018-09-26 508 } else if (IS_SKYLAKE(dev_priv)) { 7fe78985 Jani Nikula 2018-09-27 509 csr->fw_path = SKL_CSR_PATH; 180e9d23 Jani Nikula 2018-09-26 510 csr->required_version = SKL_CSR_VERSION_REQUIRED; 7fe78985 Jani Nikula 2018-09-27 511 csr->max_fw_size = SKL_CSR_MAX_FW_SIZE; 180e9d23 Jani Nikula 2018-09-26 512 } else if (IS_BROXTON(dev_priv)) { 7fe78985 Jani Nikula 2018-09-27 513 csr->fw_path = BXT_CSR_PATH; 180e9d23 Jani Nikula 2018-09-26 514 csr->required_version = BXT_CSR_VERSION_REQUIRED; d8a5b7d7 Jani Nikula 2018-09-26 515 csr->max_fw_size = BXT_CSR_MAX_FW_SIZE; 180e9d23 Jani Nikula 2018-09-26 516 } abd41dc9 Damien Lespiau 2015-06-04 517 d8a5b7d7 Jani Nikula 2018-09-26 518 if (i915_modparams.dmc_firmware_path) { e7351a84 Jani Nikula 2018-09-26 519 if (strlen(i915_modparams.dmc_firmware_path) == 0) { e7351a84 Jani Nikula 2018-09-26 520 csr->fw_path = NULL; b598a88e Colin Ian King 2018-11-07 521 DRM_INFO("Disabling CSR firmware and runtime PM\n"); e7351a84 Jani Nikula 2018-09-26 522 return; e7351a84 Jani Nikula 2018-09-26 523 } e7351a84 Jani Nikula 2018-09-26 524 d8a5b7d7 Jani Nikula 2018-09-26 525 csr->fw_path = i915_modparams.dmc_firmware_path; d8a5b7d7 Jani Nikula 2018-09-26 526 /* Bypass version check for firmware override. */ d8a5b7d7 Jani Nikula 2018-09-26 527 csr->required_version = 0; d8a5b7d7 Jani Nikula 2018-09-26 528 } dc174300 Suketu Shah 2015-04-17 529 ad3c776b Imre Deak 2018-08-15 530 if (csr->fw_path == NULL) { ad3c776b Imre Deak 2018-08-15 531 DRM_DEBUG_KMS("No known CSR firmware for platform, disabling runtime PM\n"); ad3c776b Imre Deak 2018-08-15 @532 WARN_ON(!IS_ALPHA_SUPPORT(INTEL_INFO(dev_priv))); ad3c776b Imre Deak 2018-08-15 533 ad3c776b Imre Deak 2018-08-15 534 return; ad3c776b Imre Deak 2018-08-15 535 } ad3c776b Imre Deak 2018-08-15 536 ad3c776b Imre Deak 2018-08-15 537 DRM_DEBUG_KMS("Loading %s\n", csr->fw_path); 8144ac59 Daniel Vetter 2015-10-28 538 schedule_work(&dev_priv->csr.work); eb805623 Daniel Vetter 2015-05-04 539 } eb805623 Daniel Vetter 2015-05-04 540 :::::: The code at line 532 was first introduced by commit :::::: ad3c776b171078a10ace07616a34ed6266beb0e7 drm/i915: Fix PM refcounting w/o DMC firmware :::::: TO: Imre Deak <imre.deak@xxxxxxxxx> :::::: CC: Imre Deak <imre.deak@xxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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