From patchwork Wed Jul 31 17:48:31 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michal Wajdeczko X-Patchwork-Id: 11068973 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E4856174A for ; Wed, 31 Jul 2019 17:48:55 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CDA28204FB for ; Wed, 31 Jul 2019 17:48:55 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C1B4422F3E; Wed, 31 Jul 2019 17:48:55 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id EC9E520500 for ; Wed, 31 Jul 2019 17:48:53 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7C8458984E; Wed, 31 Jul 2019 17:48:51 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by gabe.freedesktop.org (Postfix) with ESMTPS id E227289805 for ; Wed, 31 Jul 2019 17:48:45 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 31 Jul 2019 10:48:45 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,330,1559545200"; d="scan'208";a="256226054" Received: from irvmail001.ir.intel.com ([163.33.26.43]) by orsmga001.jf.intel.com with ESMTP; 31 Jul 2019 10:48:44 -0700 Received: from mwajdecz-MOBL1.ger.corp.intel.com (mwajdecz-mobl1.ger.corp.intel.com [172.28.174.50]) by irvmail001.ir.intel.com (8.14.3/8.13.6/MailSET/Hub) with ESMTP id x6VHmg4u016470; Wed, 31 Jul 2019 18:48:43 +0100 From: Michal Wajdeczko To: intel-gfx@lists.freedesktop.org Date: Wed, 31 Jul 2019 17:48:31 +0000 Message-Id: <20190731174833.22080-2-michal.wajdeczko@intel.com> X-Mailer: git-send-email 2.21.0.windows.1 In-Reply-To: <20190731174833.22080-1-michal.wajdeczko@intel.com> References: <20190731174833.22080-1-michal.wajdeczko@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v2 1/3] drm/i915: Add i915 to i915_inject_probe_failure X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP With i915 added to i915_inject_probe_failure we can use dedicated printk when injecting artificial load failure. Also make this function look like other i915 functions that return error code and make it more flexible to return any provided error code instead of previously assumed -ENODEV. Signed-off-by: Michal Wajdeczko Cc: Daniele Ceraolo Spurio Cc: Chris Wilson Reviewed-by: Chris Wilson --- .../gpu/drm/i915/display/intel_connector.c | 2 +- drivers/gpu/drm/i915/gt/intel_engine_cs.c | 2 +- drivers/gpu/drm/i915/i915_drv.c | 27 ++++++++++--------- drivers/gpu/drm/i915/i915_drv.h | 12 +++++---- drivers/gpu/drm/i915/i915_gem.c | 10 +++---- drivers/gpu/drm/i915/i915_pci.c | 2 +- drivers/gpu/drm/i915/intel_gvt.c | 2 +- drivers/gpu/drm/i915/intel_uncore.c | 2 +- drivers/gpu/drm/i915/intel_wopcm.c | 2 +- 9 files changed, 31 insertions(+), 30 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_connector.c b/drivers/gpu/drm/i915/display/intel_connector.c index d0163d86c42a..cf8823ce9606 100644 --- a/drivers/gpu/drm/i915/display/intel_connector.c +++ b/drivers/gpu/drm/i915/display/intel_connector.c @@ -118,7 +118,7 @@ int intel_connector_register(struct drm_connector *connector) if (ret) goto err; - if (i915_inject_probe_failure()) { + if (i915_inject_probe_failure(to_i915(connector->dev))) { ret = -EFAULT; goto err_backlight; } diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c index 65cbf1d9118d..8bd9a9adf4a5 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c +++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c @@ -426,7 +426,7 @@ int intel_engines_init_mmio(struct drm_i915_private *i915) WARN_ON(engine_mask & GENMASK(BITS_PER_TYPE(mask) - 1, I915_NUM_ENGINES)); - if (i915_inject_probe_failure()) + if (i915_inject_probe_failure(i915)) return -ENODEV; for (i = 0; i < ARRAY_SIZE(intel_engines); i++) { diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 761726818a22..cdbc334726b5 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -83,19 +83,20 @@ static struct drm_driver driver; #if IS_ENABLED(CONFIG_DRM_I915_DEBUG) static unsigned int i915_probe_fail_count; -bool __i915_inject_probe_failure(const char *func, int line) +int __i915_inject_load_error(struct drm_i915_private *i915, int err, + const char *func, int line) { if (i915_probe_fail_count >= i915_modparams.inject_load_failure) - return false; + return 0; - if (++i915_probe_fail_count == i915_modparams.inject_load_failure) { - DRM_INFO("Injecting failure at checkpoint %u [%s:%d]\n", - i915_modparams.inject_load_failure, func, line); - i915_modparams.inject_load_failure = 0; - return true; - } + if (++i915_probe_fail_count < i915_modparams.inject_load_failure) + return 0; - return false; + __i915_printk(i915, KERN_INFO, + "Injecting failure %d at checkpoint %u [%s:%d]\n", + err, i915_modparams.inject_load_failure, func, line); + i915_modparams.inject_load_failure = 0; + return err; } bool i915_error_injected(void) @@ -687,7 +688,7 @@ static int i915_driver_modeset_probe(struct drm_device *dev) struct pci_dev *pdev = dev_priv->drm.pdev; int ret; - if (i915_inject_probe_failure()) + if (i915_inject_probe_failure(dev_priv)) return -ENODEV; if (HAS_DISPLAY(dev_priv)) { @@ -894,7 +895,7 @@ static int i915_driver_early_probe(struct drm_i915_private *dev_priv) { int ret = 0; - if (i915_inject_probe_failure()) + if (i915_inject_probe_failure(dev_priv)) return -ENODEV; intel_device_info_subplatform_init(dev_priv); @@ -985,7 +986,7 @@ static int i915_driver_mmio_probe(struct drm_i915_private *dev_priv) { int ret; - if (i915_inject_probe_failure()) + if (i915_inject_probe_failure(dev_priv)) return -ENODEV; if (i915_get_bridge_dev(dev_priv)) @@ -1530,7 +1531,7 @@ static int i915_driver_hw_probe(struct drm_i915_private *dev_priv) struct pci_dev *pdev = dev_priv->drm.pdev; int ret; - if (i915_inject_probe_failure()) + if (i915_inject_probe_failure(dev_priv)) return -ENODEV; intel_device_info_runtime_init(dev_priv); diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 4f492c05d065..a92fcd5df79b 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -122,19 +122,21 @@ #if IS_ENABLED(CONFIG_DRM_I915_DEBUG) -bool __i915_inject_probe_failure(const char *func, int line); -#define i915_inject_probe_failure() \ - __i915_inject_probe_failure(__func__, __LINE__) - +int __i915_inject_load_error(struct drm_i915_private *i915, int err, + const char *func, int line); +#define i915_inject_load_error(_i915, _err) \ + __i915_inject_load_error((_i915), (_err), __func__, __LINE__) bool i915_error_injected(void); #else -#define i915_inject_probe_failure() false +#define i915_inject_load_error(_err) 0 #define i915_error_injected() false #endif +#define i915_inject_probe_failure(i915) i915_inject_load_error((i915), -ENODEV) + #define i915_probe_error(i915, fmt, ...) \ __i915_printk(i915, i915_error_injected() ? KERN_DEBUG : KERN_ERR, \ fmt, ##__VA_ARGS__) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 62eefe860bcd..bb2c991b49d7 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1520,15 +1520,13 @@ int i915_gem_init(struct drm_i915_private *dev_priv) if (ret) goto err_gt; - if (i915_inject_probe_failure()) { - ret = -ENODEV; + ret = i915_inject_load_error(dev_priv, -ENODEV); + if (ret) goto err_gt; - } - if (i915_inject_probe_failure()) { - ret = -EIO; + ret = i915_inject_load_error(dev_priv, -EIO); + if (ret) goto err_gt; - } intel_uncore_forcewake_put(&dev_priv->uncore, FORCEWAKE_ALL); mutex_unlock(&dev_priv->drm.struct_mutex); diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c index a7e1cde4a6d9..20e562ced8cc 100644 --- a/drivers/gpu/drm/i915/i915_pci.c +++ b/drivers/gpu/drm/i915/i915_pci.c @@ -959,7 +959,7 @@ static int i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) if (err) return err; - if (i915_inject_probe_failure()) { + if (i915_inject_probe_failure(to_i915(pci_get_drvdata(pdev)))) { i915_pci_remove(pdev); return -ENODEV; } diff --git a/drivers/gpu/drm/i915/intel_gvt.c b/drivers/gpu/drm/i915/intel_gvt.c index c66b2d8a6219..2b6c016387c2 100644 --- a/drivers/gpu/drm/i915/intel_gvt.c +++ b/drivers/gpu/drm/i915/intel_gvt.c @@ -95,7 +95,7 @@ int intel_gvt_init(struct drm_i915_private *dev_priv) { int ret; - if (i915_inject_probe_failure()) + if (i915_inject_probe_failure(dev_priv)) return -ENODEV; if (!i915_modparams.enable_gvt) { diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index 475ab3d4d91d..88eb3b5c226d 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -1331,7 +1331,7 @@ static int __fw_domain_init(struct intel_uncore *uncore, GEM_BUG_ON(domain_id >= FW_DOMAIN_ID_COUNT); GEM_BUG_ON(uncore->fw_domain[domain_id]); - if (i915_inject_probe_failure()) + if (i915_inject_probe_failure(uncore->i915)) return -ENOMEM; d = kzalloc(sizeof(*d), GFP_KERNEL); diff --git a/drivers/gpu/drm/i915/intel_wopcm.c b/drivers/gpu/drm/i915/intel_wopcm.c index d9973c0b0384..291881937d97 100644 --- a/drivers/gpu/drm/i915/intel_wopcm.c +++ b/drivers/gpu/drm/i915/intel_wopcm.c @@ -177,7 +177,7 @@ int intel_wopcm_init(struct intel_wopcm *wopcm) GEM_BUG_ON(!wopcm->size); - if (i915_inject_probe_failure()) + if (i915_inject_probe_failure(i915)) return -E2BIG; if (guc_fw_size >= wopcm->size) { From patchwork Wed Jul 31 17:48:32 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michal Wajdeczko X-Patchwork-Id: 11068969 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 0C5EE1399 for ; Wed, 31 Jul 2019 17:48:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EA2C220500 for ; Wed, 31 Jul 2019 17:48:52 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DE2C7205A4; Wed, 31 Jul 2019 17:48:52 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 69331204FB for ; Wed, 31 Jul 2019 17:48:51 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id ECE4889805; Wed, 31 Jul 2019 17:48:50 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 914B189805 for ; Wed, 31 Jul 2019 17:48:46 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 31 Jul 2019 10:48:45 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,330,1559545200"; d="scan'208";a="172536478" Received: from irvmail001.ir.intel.com ([163.33.26.43]) by fmsmga008.fm.intel.com with ESMTP; 31 Jul 2019 10:48:44 -0700 Received: from mwajdecz-MOBL1.ger.corp.intel.com (mwajdecz-mobl1.ger.corp.intel.com [172.28.174.50]) by irvmail001.ir.intel.com (8.14.3/8.13.6/MailSET/Hub) with ESMTP id x6VHmg4v016470; Wed, 31 Jul 2019 18:48:43 +0100 From: Michal Wajdeczko To: intel-gfx@lists.freedesktop.org Date: Wed, 31 Jul 2019 17:48:32 +0000 Message-Id: <20190731174833.22080-3-michal.wajdeczko@intel.com> X-Mailer: git-send-email 2.21.0.windows.1 In-Reply-To: <20190731174833.22080-1-michal.wajdeczko@intel.com> References: <20190731174833.22080-1-michal.wajdeczko@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v2 2/3] drm/i915/uc: Inject probe errors into intel_uc_init_hw X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Inject probe errors into intel_uc_init_hw to make sure we correctly handle any uC initialization failure. To avoid complains from CI about injected errors use i915_probe_error to lower message level. Signed-off-by: Michal Wajdeczko Cc: Daniele Ceraolo Spurio Cc: Chris Wilson Reviewed-by: Chris Wilson --- drivers/gpu/drm/i915/gt/uc/intel_huc.c | 4 ++++ drivers/gpu/drm/i915/gt/uc/intel_uc.c | 18 +++++++++++++++++- drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c | 5 +++++ drivers/gpu/drm/i915/i915_gem.c | 2 +- 4 files changed, 27 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/uc/intel_huc.c b/drivers/gpu/drm/i915/gt/uc/intel_huc.c index c9535caba844..a696ce0fec62 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_huc.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_huc.c @@ -139,6 +139,10 @@ int intel_huc_auth(struct intel_huc *huc) GEM_BUG_ON(!intel_uc_fw_is_loaded(&huc->fw)); GEM_BUG_ON(intel_huc_is_authenticated(huc)); + ret = i915_inject_load_error(gt->i915, -ENXIO); + if (ret) + goto fail; + ret = intel_guc_auth_huc(guc, intel_guc_ggtt_offset(guc, huc->rsa_data)); if (ret) { diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc.c b/drivers/gpu/drm/i915/gt/uc/intel_uc.c index 66b226be6759..3d0e9a893953 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_uc.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_uc.c @@ -41,6 +41,10 @@ static int __intel_uc_reset_hw(struct intel_uc *uc) int ret; u32 guc_status; + ret = i915_inject_load_error(gt->i915, -ENXIO); + if (ret) + return ret; + ret = intel_reset_guc(gt); if (ret) { DRM_ERROR("Failed to reset GuC, ret = %d\n", ret); @@ -245,6 +249,10 @@ static int guc_enable_communication(struct intel_guc *guc) GEM_BUG_ON(guc_communication_enabled(guc)); + ret = i915_inject_load_error(i915, -ENXIO); + if (ret) + return ret; + ret = intel_guc_ct_enable(&guc->ct); if (ret) return ret; @@ -414,6 +422,10 @@ static int uc_init_wopcm(struct intel_uc *uc) GEM_BUG_ON(!(size & GUC_WOPCM_SIZE_MASK)); GEM_BUG_ON(size & ~GUC_WOPCM_SIZE_MASK); + err = i915_inject_load_error(gt->i915, -ENXIO); + if (err) + return err; + mask = GUC_WOPCM_SIZE_MASK | GUC_WOPCM_SIZE_LOCKED; err = intel_uncore_write_and_verify(uncore, GUC_WOPCM_SIZE, size, mask, size | GUC_WOPCM_SIZE_LOCKED); @@ -514,6 +526,10 @@ int intel_uc_init_hw(struct intel_uc *uc) goto err_communication; } + ret = i915_inject_load_error(i915, -ENXIO); + if (ret) + goto err_communication; + dev_info(i915->drm.dev, "GuC firmware version %u.%u\n", guc->fw.major_ver_found, guc->fw.minor_ver_found); dev_info(i915->drm.dev, "GuC submission %s\n", @@ -540,7 +556,7 @@ int intel_uc_init_hw(struct intel_uc *uc) if (GEM_WARN_ON(ret == -EIO)) ret = -EINVAL; - dev_err(i915->drm.dev, "GuC initialization failed %d\n", ret); + i915_probe_error(i915, "GuC initialization failed %d\n", ret); return ret; } diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c index ac91e3efd02b..734b20bf635f 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c @@ -424,8 +424,13 @@ int intel_uc_fw_upload(struct intel_uc_fw *uc_fw, struct intel_gt *gt, /* make sure the status was cleared the last time we reset the uc */ GEM_BUG_ON(intel_uc_fw_is_loaded(uc_fw)); + err = i915_inject_load_error(gt->i915, -ENOEXEC); + if (err) + return err; + if (!intel_uc_fw_is_available(uc_fw)) return -ENOEXEC; + /* Call custom loader */ intel_uc_fw_ggtt_bind(uc_fw, gt); err = uc_fw_xfer(uc_fw, gt, wopcm_offset, dma_flags); diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index bb2c991b49d7..54a10c8c4dff 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1243,7 +1243,7 @@ int i915_gem_init_hw(struct drm_i915_private *i915) /* We can't enable contexts until all firmware is loaded */ ret = intel_uc_init_hw(>->uc); if (ret) { - DRM_ERROR("Enabling uc failed (%d)\n", ret); + i915_probe_error(i915, "Enabling uc failed (%d)\n", ret); goto out; } From patchwork Wed Jul 31 17:48:33 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michal Wajdeczko X-Patchwork-Id: 11068971 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id ABFF91399 for ; Wed, 31 Jul 2019 17:48:55 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9662E204FB for ; Wed, 31 Jul 2019 17:48:55 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8958522F3E; Wed, 31 Jul 2019 17:48:55 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id E7614204FB for ; 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Wed, 31 Jul 2019 18:48:44 +0100 From: Michal Wajdeczko To: intel-gfx@lists.freedesktop.org Date: Wed, 31 Jul 2019 17:48:33 +0000 Message-Id: <20190731174833.22080-4-michal.wajdeczko@intel.com> X-Mailer: git-send-email 2.21.0.windows.1 In-Reply-To: <20190731174833.22080-1-michal.wajdeczko@intel.com> References: <20190731174833.22080-1-michal.wajdeczko@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v2 3/3] drm/i915/wopcm: Don't fail on WOPCM partitioning failure X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP We don't have to immediately fail on WOPCM partitioning, we can wait until we will start programming WOPCM registers. This should give us more options if we decide to restore fallback in case of GuC failures. v2: rebased Signed-off-by: Michal Wajdeczko Cc: Daniele Ceraolo Spurio Cc: Chris Wilson Reviewed-by: Chris Wilson --- drivers/gpu/drm/i915/gt/uc/intel_uc.c | 5 +++++ drivers/gpu/drm/i915/i915_gem.c | 6 +----- drivers/gpu/drm/i915/intel_wopcm.c | 28 +++++++++++++-------------- drivers/gpu/drm/i915/intel_wopcm.h | 2 +- 4 files changed, 21 insertions(+), 20 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc.c b/drivers/gpu/drm/i915/gt/uc/intel_uc.c index 3d0e9a893953..b08cff88e664 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_uc.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_uc.c @@ -416,6 +416,11 @@ static int uc_init_wopcm(struct intel_uc *uc) u32 mask; int err; + if (unlikely(!base || !size)) { + i915_probe_error(gt->i915, "Unsuccessful WOPCM partitioning\n"); + return -E2BIG; + } + GEM_BUG_ON(!intel_uc_is_using_guc(uc)); GEM_BUG_ON(!(base & GUC_WOPCM_OFFSET_MASK)); GEM_BUG_ON(base & ~GUC_WOPCM_OFFSET_MASK); diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 54a10c8c4dff..278fa44815e2 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1441,10 +1441,7 @@ int i915_gem_init(struct drm_i915_private *dev_priv) return ret; intel_uc_fetch_firmwares(&dev_priv->gt.uc); - - ret = intel_wopcm_init(&dev_priv->wopcm); - if (ret) - goto err_uc_fw; + intel_wopcm_init(&dev_priv->wopcm); /* This is just a security blanket to placate dragons. * On some systems, we very sporadically observe that the first TLBs @@ -1568,7 +1565,6 @@ int i915_gem_init(struct drm_i915_private *dev_priv) intel_uncore_forcewake_put(&dev_priv->uncore, FORCEWAKE_ALL); mutex_unlock(&dev_priv->drm.struct_mutex); -err_uc_fw: intel_uc_cleanup_firmwares(&dev_priv->gt.uc); if (ret != -EIO) { diff --git a/drivers/gpu/drm/i915/intel_wopcm.c b/drivers/gpu/drm/i915/intel_wopcm.c index 291881937d97..4c22143ee84f 100644 --- a/drivers/gpu/drm/i915/intel_wopcm.c +++ b/drivers/gpu/drm/i915/intel_wopcm.c @@ -156,12 +156,10 @@ static inline int check_hw_restriction(struct drm_i915_private *i915, * This function will partition WOPCM space based on GuC and HuC firmware sizes * and will allocate max remaining for use by GuC. This function will also * enforce platform dependent hardware restrictions on GuC WOPCM offset and - * size. It will fail the WOPCM init if any of these checks were failed, so that - * the following GuC firmware uploading would be aborted. - * - * Return: 0 on success, non-zero error code on failure. + * size. It will fail the WOPCM init if any of these checks fail, so that the + * following WOPCM registers setup and GuC firmware uploading would be aborted. */ -int intel_wopcm_init(struct intel_wopcm *wopcm) +void intel_wopcm_init(struct intel_wopcm *wopcm) { struct drm_i915_private *i915 = wopcm_to_i915(wopcm); u32 guc_fw_size = intel_uc_fw_get_upload_size(&i915->gt.uc.guc.fw); @@ -173,23 +171,25 @@ int intel_wopcm_init(struct intel_wopcm *wopcm) int err; if (!USES_GUC(i915)) - return 0; + return; GEM_BUG_ON(!wopcm->size); + GEM_BUG_ON(wopcm->guc.base); + GEM_BUG_ON(wopcm->guc.size); if (i915_inject_probe_failure(i915)) - return -E2BIG; + return; if (guc_fw_size >= wopcm->size) { DRM_ERROR("GuC FW (%uKiB) is too big to fit in WOPCM.", guc_fw_size / 1024); - return -E2BIG; + return; } if (huc_fw_size >= wopcm->size) { DRM_ERROR("HuC FW (%uKiB) is too big to fit in WOPCM.", huc_fw_size / 1024); - return -E2BIG; + return; } guc_wopcm_base = ALIGN(huc_fw_size + WOPCM_RESERVED_SIZE, @@ -197,7 +197,7 @@ int intel_wopcm_init(struct intel_wopcm *wopcm) if ((guc_wopcm_base + ctx_rsvd) >= wopcm->size) { DRM_ERROR("GuC WOPCM base (%uKiB) is too big.\n", guc_wopcm_base / 1024); - return -E2BIG; + return; } guc_wopcm_size = wopcm->size - guc_wopcm_base - ctx_rsvd; @@ -211,16 +211,16 @@ int intel_wopcm_init(struct intel_wopcm *wopcm) DRM_ERROR("Need %uKiB WOPCM for GuC, %uKiB available.\n", (guc_fw_size + guc_wopcm_rsvd) / 1024, guc_wopcm_size / 1024); - return -E2BIG; + return; } err = check_hw_restriction(i915, guc_wopcm_base, guc_wopcm_size, huc_fw_size); if (err) - return err; + return; wopcm->guc.base = guc_wopcm_base; wopcm->guc.size = guc_wopcm_size; - - return 0; + GEM_BUG_ON(!wopcm->guc.base); + GEM_BUG_ON(!wopcm->guc.size); } diff --git a/drivers/gpu/drm/i915/intel_wopcm.h b/drivers/gpu/drm/i915/intel_wopcm.h index f9b603205bb1..17d6aa86008a 100644 --- a/drivers/gpu/drm/i915/intel_wopcm.h +++ b/drivers/gpu/drm/i915/intel_wopcm.h @@ -55,6 +55,6 @@ static inline u32 intel_wopcm_guc_size(struct intel_wopcm *wopcm) } void intel_wopcm_init_early(struct intel_wopcm *wopcm); -int intel_wopcm_init(struct intel_wopcm *wopcm); +void intel_wopcm_init(struct intel_wopcm *wopcm); #endif