From patchwork Tue Aug 15 19:50:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Andr=C3=A9_Almeida?= X-Patchwork-Id: 13354229 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id AF4ADC001E0 for ; Tue, 15 Aug 2023 19:51:35 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7F80810E285; Tue, 15 Aug 2023 19:51:29 +0000 (UTC) Received: from fanzine2.igalia.com (fanzine2.igalia.com [213.97.179.56]) by gabe.freedesktop.org (Postfix) with ESMTPS id D696810E283; Tue, 15 Aug 2023 19:51:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=igalia.com; s=20170329; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References: In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=0So8O3/MNtUi08+iM0GTq8USjRthw2+S2AnIdqjvHuo=; b=q2glmrupVK+JIYupjkCpk8dXgr bFE/kRAqwwmDJPardd9qkvhQD9bdp4ZybFG3M8ZJErKyZhYuXf1Nr4hnGNwkwpzauTNzq4+JexPA4 xqJgISPfNLAhJK+9zjxaSVPP1A7TTuHXPTefAE/Lw6yHrWPSGJVOvggl8f+mnd3Z6VgLq+29qcUVt pTRZ9trsck8W5vrKHXYW0K06pDzhSSJScSiGazYOjCq3QYC6ypez9ZiU2yoYWca1zfhrlWa9ufu4O BI7VbPX+C2rI4qRCawUAYqP2hUH+vQ2gvE3CDmLf59hPa2tGZvxIXqM++u9nCj6itWRAxaccuW6D/ 6dU7+AWg==; Received: from [191.193.179.209] (helo=steammachine.lan) by fanzine2.igalia.com with esmtpsa (Cipher TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim) id 1qW04a-001DUX-DG; Tue, 15 Aug 2023 21:51:24 +0200 From: =?utf-8?q?Andr=C3=A9_Almeida?= To: dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 1/4] drm/amdgpu: Allocate coredump memory in a nonblocking way Date: Tue, 15 Aug 2023 16:50:57 -0300 Message-ID: <20230815195100.294458-2-andrealmeid@igalia.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230815195100.294458-1-andrealmeid@igalia.com> References: <20230815195100.294458-1-andrealmeid@igalia.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: pierre-eric.pelloux-prayer@amd.com, =?utf-8?q?Andr=C3=A9_Almeida?= , =?utf-8?b?J01hcmVr?= =?utf-8?b?IE9sxaHDoWsn?= , =?utf-8?q?Timur_Krist=C3=B3f?= , Samuel Pitoiset , kernel-dev@igalia.com, alexander.deucher@amd.com, christian.koenig@amd.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" During a GPU reset, a normal memory reclaim could block to reclaim memory. Giving that coredump is a best effort mechanism, it shouldn't disturb the reset path. Change its memory allocation flag to a nonblocking one. Signed-off-by: André Almeida Reviewed-by: Christian König --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index aa171db68639..bf4781551f88 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -4847,7 +4847,7 @@ static void amdgpu_reset_capture_coredumpm(struct amdgpu_device *adev) struct drm_device *dev = adev_to_drm(adev); ktime_get_ts64(&adev->reset_time); - dev_coredumpm(dev->dev, THIS_MODULE, adev, 0, GFP_KERNEL, + dev_coredumpm(dev->dev, THIS_MODULE, adev, 0, GFP_NOWAIT, amdgpu_devcoredump_read, amdgpu_devcoredump_free); } #endif From patchwork Tue Aug 15 19:50:58 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Andr=C3=A9_Almeida?= X-Patchwork-Id: 13354230 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BB2ADC001E0 for ; Tue, 15 Aug 2023 19:51:38 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8483310E286; Tue, 15 Aug 2023 19:51:33 +0000 (UTC) Received: from fanzine2.igalia.com (fanzine2.igalia.com [213.97.179.56]) by gabe.freedesktop.org (Postfix) with ESMTPS id 419E110E286; Tue, 15 Aug 2023 19:51:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=igalia.com; s=20170329; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References: In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=ImBHA/WSjOaOggymA5iZxzWXoxfGvc/FXVhXRQzxsLk=; b=MMxyqXxTZrMEeKtPEwT3HzdgC0 QYLNAkh4aqbVJCLLIiphLa6iEJhD8r5/x9eh35MGYTTKl7Za9pVTQeAQK75uCnKlzvEkF9Hjbgmkw iS4+79zhGFjM7a8dNeM+H0uP0k0gTQq3Dd7+HAaIr7TrUs5B1RboEUOd79mDATI8sSSpvnpBaX0TH Y4RUOCcE2t7rpGx3S7PYydsiSR+Moz3OwLOiM4x0QVDYsXanD8XTeicGt01kuXj4ElJU0pDnfo+qt RiqZ83BRC6kQaMYqztM/+1r4nUnfKkCQ4KsGS75HP0gJiSNOtJQcm8VwyGsJ+1LoQxMOxWNit647y WdEu7xvw==; Received: from [191.193.179.209] (helo=steammachine.lan) by fanzine2.igalia.com with esmtpsa (Cipher TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim) id 1qW04d-001DUX-MA; Tue, 15 Aug 2023 21:51:28 +0200 From: =?utf-8?q?Andr=C3=A9_Almeida?= To: dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 2/4] drm/amdgpu: Rework coredump to use memory dynamically Date: Tue, 15 Aug 2023 16:50:58 -0300 Message-ID: <20230815195100.294458-3-andrealmeid@igalia.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230815195100.294458-1-andrealmeid@igalia.com> References: <20230815195100.294458-1-andrealmeid@igalia.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: pierre-eric.pelloux-prayer@amd.com, =?utf-8?q?Andr=C3=A9_Almeida?= , =?utf-8?b?J01hcmVr?= =?utf-8?b?IE9sxaHDoWsn?= , =?utf-8?q?Timur_Krist=C3=B3f?= , Samuel Pitoiset , kernel-dev@igalia.com, alexander.deucher@amd.com, christian.koenig@amd.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Instead of storing coredump information inside amdgpu_device struct, move if to a proper separated struct and allocate it dynamically. This will make it easier to further expand the logged information. Signed-off-by: André Almeida --- v4: change kmalloc to kzalloc --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 14 +++-- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 63 ++++++++++++++-------- 2 files changed, 49 insertions(+), 28 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 9c6a332261ab..0d560b713948 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -1088,11 +1088,6 @@ struct amdgpu_device { uint32_t *reset_dump_reg_list; uint32_t *reset_dump_reg_value; int num_regs; -#ifdef CONFIG_DEV_COREDUMP - struct amdgpu_task_info reset_task_info; - bool reset_vram_lost; - struct timespec64 reset_time; -#endif bool scpm_enabled; uint32_t scpm_status; @@ -1105,6 +1100,15 @@ struct amdgpu_device { uint32_t aid_mask; }; +#ifdef CONFIG_DEV_COREDUMP +struct amdgpu_coredump_info { + struct amdgpu_device *adev; + struct amdgpu_task_info reset_task_info; + struct timespec64 reset_time; + bool reset_vram_lost; +}; +#endif + static inline struct amdgpu_device *drm_to_adev(struct drm_device *ddev) { return container_of(ddev, struct amdgpu_device, ddev); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index bf4781551f88..b5b879bcc5c9 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -4799,12 +4799,17 @@ static int amdgpu_reset_reg_dumps(struct amdgpu_device *adev) return 0; } -#ifdef CONFIG_DEV_COREDUMP +#ifndef CONFIG_DEV_COREDUMP +static void amdgpu_coredump(struct amdgpu_device *adev, bool vram_lost, + struct amdgpu_reset_context *reset_context) +{ +} +#else static ssize_t amdgpu_devcoredump_read(char *buffer, loff_t offset, size_t count, void *data, size_t datalen) { struct drm_printer p; - struct amdgpu_device *adev = data; + struct amdgpu_coredump_info *coredump = data; struct drm_print_iterator iter; int i; @@ -4818,21 +4823,21 @@ static ssize_t amdgpu_devcoredump_read(char *buffer, loff_t offset, drm_printf(&p, "**** AMDGPU Device Coredump ****\n"); drm_printf(&p, "kernel: " UTS_RELEASE "\n"); drm_printf(&p, "module: " KBUILD_MODNAME "\n"); - drm_printf(&p, "time: %lld.%09ld\n", adev->reset_time.tv_sec, adev->reset_time.tv_nsec); - if (adev->reset_task_info.pid) + drm_printf(&p, "time: %lld.%09ld\n", coredump->reset_time.tv_sec, coredump->reset_time.tv_nsec); + if (coredump->reset_task_info.pid) drm_printf(&p, "process_name: %s PID: %d\n", - adev->reset_task_info.process_name, - adev->reset_task_info.pid); + coredump->reset_task_info.process_name, + coredump->reset_task_info.pid); - if (adev->reset_vram_lost) + if (coredump->reset_vram_lost) drm_printf(&p, "VRAM is lost due to GPU reset!\n"); - if (adev->num_regs) { + if (coredump->adev->num_regs) { drm_printf(&p, "AMDGPU register dumps:\nOffset: Value:\n"); - for (i = 0; i < adev->num_regs; i++) + for (i = 0; i < coredump->adev->num_regs; i++) drm_printf(&p, "0x%08x: 0x%08x\n", - adev->reset_dump_reg_list[i], - adev->reset_dump_reg_value[i]); + coredump->adev->reset_dump_reg_list[i], + coredump->adev->reset_dump_reg_value[i]); } return count - iter.remain; @@ -4840,14 +4845,32 @@ static ssize_t amdgpu_devcoredump_read(char *buffer, loff_t offset, static void amdgpu_devcoredump_free(void *data) { + kfree(data); } -static void amdgpu_reset_capture_coredumpm(struct amdgpu_device *adev) +static void amdgpu_coredump(struct amdgpu_device *adev, bool vram_lost, + struct amdgpu_reset_context *reset_context) { + struct amdgpu_coredump_info *coredump; struct drm_device *dev = adev_to_drm(adev); - ktime_get_ts64(&adev->reset_time); - dev_coredumpm(dev->dev, THIS_MODULE, adev, 0, GFP_NOWAIT, + coredump = kzalloc(sizeof(*coredump), GFP_NOWAIT); + + if (!coredump) { + DRM_ERROR("%s: failed to allocate memory for coredump\n", __func__); + return; + } + + coredump->reset_vram_lost = vram_lost; + + if (reset_context->job && reset_context->job->vm) + coredump->reset_task_info = reset_context->job->vm->task_info; + + coredump->adev = adev; + + ktime_get_ts64(&coredump->reset_time); + + dev_coredumpm(dev->dev, THIS_MODULE, coredump, 0, GFP_NOWAIT, amdgpu_devcoredump_read, amdgpu_devcoredump_free); } #endif @@ -4955,15 +4978,9 @@ int amdgpu_do_asic_reset(struct list_head *device_list_handle, goto out; vram_lost = amdgpu_device_check_vram_lost(tmp_adev); -#ifdef CONFIG_DEV_COREDUMP - tmp_adev->reset_vram_lost = vram_lost; - memset(&tmp_adev->reset_task_info, 0, - sizeof(tmp_adev->reset_task_info)); - if (reset_context->job && reset_context->job->vm) - tmp_adev->reset_task_info = - reset_context->job->vm->task_info; - amdgpu_reset_capture_coredumpm(tmp_adev); -#endif + + amdgpu_coredump(tmp_adev, vram_lost, reset_context); + if (vram_lost) { DRM_INFO("VRAM is lost due to GPU reset!\n"); amdgpu_inc_vram_lost(tmp_adev); From patchwork Tue Aug 15 19:50:59 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Andr=C3=A9_Almeida?= X-Patchwork-Id: 13354231 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A40CAC001B0 for ; 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Received: from [191.193.179.209] (helo=steammachine.lan) by fanzine2.igalia.com with esmtpsa (Cipher TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim) id 1qW04g-001DUX-Oa; Tue, 15 Aug 2023 21:51:31 +0200 From: =?utf-8?q?Andr=C3=A9_Almeida?= To: dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 3/4] drm/amdgpu: Move coredump code to amdgpu_reset file Date: Tue, 15 Aug 2023 16:50:59 -0300 Message-ID: <20230815195100.294458-4-andrealmeid@igalia.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230815195100.294458-1-andrealmeid@igalia.com> References: <20230815195100.294458-1-andrealmeid@igalia.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: pierre-eric.pelloux-prayer@amd.com, =?utf-8?q?Andr=C3=A9_Almeida?= , =?utf-8?b?J01hcmVr?= =?utf-8?b?IE9sxaHDoWsn?= , =?utf-8?q?Timur_Krist=C3=B3f?= , Samuel Pitoiset , kernel-dev@igalia.com, alexander.deucher@amd.com, christian.koenig@amd.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Giving that we use codedump just for device resets, move it's functions and structs to a more semantic file, the amdgpu_reset.{c, h}. Signed-off-by: André Almeida Acked-by: Christian König for this patch here. --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 9 --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 78 ---------------------- drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c | 76 +++++++++++++++++++++ drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h | 11 +++ 4 files changed, 87 insertions(+), 87 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 0d560b713948..314b06cddc39 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -1100,15 +1100,6 @@ struct amdgpu_device { uint32_t aid_mask; }; -#ifdef CONFIG_DEV_COREDUMP -struct amdgpu_coredump_info { - struct amdgpu_device *adev; - struct amdgpu_task_info reset_task_info; - struct timespec64 reset_time; - bool reset_vram_lost; -}; -#endif - static inline struct amdgpu_device *drm_to_adev(struct drm_device *ddev) { return container_of(ddev, struct amdgpu_device, ddev); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index b5b879bcc5c9..9706f608723a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -32,8 +32,6 @@ #include #include #include -#include -#include #include #include @@ -4799,82 +4797,6 @@ static int amdgpu_reset_reg_dumps(struct amdgpu_device *adev) return 0; } -#ifndef CONFIG_DEV_COREDUMP -static void amdgpu_coredump(struct amdgpu_device *adev, bool vram_lost, - struct amdgpu_reset_context *reset_context) -{ -} -#else -static ssize_t amdgpu_devcoredump_read(char *buffer, loff_t offset, - size_t count, void *data, size_t datalen) -{ - struct drm_printer p; - struct amdgpu_coredump_info *coredump = data; - struct drm_print_iterator iter; - int i; - - iter.data = buffer; - iter.offset = 0; - iter.start = offset; - iter.remain = count; - - p = drm_coredump_printer(&iter); - - drm_printf(&p, "**** AMDGPU Device Coredump ****\n"); - drm_printf(&p, "kernel: " UTS_RELEASE "\n"); - drm_printf(&p, "module: " KBUILD_MODNAME "\n"); - drm_printf(&p, "time: %lld.%09ld\n", coredump->reset_time.tv_sec, coredump->reset_time.tv_nsec); - if (coredump->reset_task_info.pid) - drm_printf(&p, "process_name: %s PID: %d\n", - coredump->reset_task_info.process_name, - coredump->reset_task_info.pid); - - if (coredump->reset_vram_lost) - drm_printf(&p, "VRAM is lost due to GPU reset!\n"); - if (coredump->adev->num_regs) { - drm_printf(&p, "AMDGPU register dumps:\nOffset: Value:\n"); - - for (i = 0; i < coredump->adev->num_regs; i++) - drm_printf(&p, "0x%08x: 0x%08x\n", - coredump->adev->reset_dump_reg_list[i], - coredump->adev->reset_dump_reg_value[i]); - } - - return count - iter.remain; -} - -static void amdgpu_devcoredump_free(void *data) -{ - kfree(data); -} - -static void amdgpu_coredump(struct amdgpu_device *adev, bool vram_lost, - struct amdgpu_reset_context *reset_context) -{ - struct amdgpu_coredump_info *coredump; - struct drm_device *dev = adev_to_drm(adev); - - coredump = kzalloc(sizeof(*coredump), GFP_NOWAIT); - - if (!coredump) { - DRM_ERROR("%s: failed to allocate memory for coredump\n", __func__); - return; - } - - coredump->reset_vram_lost = vram_lost; - - if (reset_context->job && reset_context->job->vm) - coredump->reset_task_info = reset_context->job->vm->task_info; - - coredump->adev = adev; - - ktime_get_ts64(&coredump->reset_time); - - dev_coredumpm(dev->dev, THIS_MODULE, coredump, 0, GFP_NOWAIT, - amdgpu_devcoredump_read, amdgpu_devcoredump_free); -} -#endif - int amdgpu_do_asic_reset(struct list_head *device_list_handle, struct amdgpu_reset_context *reset_context) { diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c index 5fed06ffcc6b..46c8d6ce349c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c @@ -21,6 +21,9 @@ * */ +#include +#include + #include "amdgpu_reset.h" #include "aldebaran.h" #include "sienna_cichlid.h" @@ -167,5 +170,78 @@ void amdgpu_device_unlock_reset_domain(struct amdgpu_reset_domain *reset_domain) up_write(&reset_domain->sem); } +#ifndef CONFIG_DEV_COREDUMP +void amdgpu_coredump(struct amdgpu_device *adev, bool vram_lost, + struct amdgpu_reset_context *reset_context) +{ +} +#else +static ssize_t amdgpu_devcoredump_read(char *buffer, loff_t offset, + size_t count, void *data, size_t datalen) +{ + struct drm_printer p; + struct amdgpu_coredump_info *coredump = data; + struct drm_print_iterator iter; + int i; + + iter.data = buffer; + iter.offset = 0; + iter.start = offset; + iter.remain = count; + + p = drm_coredump_printer(&iter); + + drm_printf(&p, "**** AMDGPU Device Coredump ****\n"); + drm_printf(&p, "kernel: " UTS_RELEASE "\n"); + drm_printf(&p, "module: " KBUILD_MODNAME "\n"); + drm_printf(&p, "time: %lld.%09ld\n", coredump->reset_time.tv_sec, coredump->reset_time.tv_nsec); + if (coredump->reset_task_info.pid) + drm_printf(&p, "process_name: %s PID: %d\n", + coredump->reset_task_info.process_name, + coredump->reset_task_info.pid); + + if (coredump->reset_vram_lost) + drm_printf(&p, "VRAM is lost due to GPU reset!\n"); + if (coredump->adev->num_regs) { + drm_printf(&p, "AMDGPU register dumps:\nOffset: Value:\n"); + + for (i = 0; i < coredump->adev->num_regs; i++) + drm_printf(&p, "0x%08x: 0x%08x\n", + coredump->adev->reset_dump_reg_list[i], + coredump->adev->reset_dump_reg_value[i]); + } + + return count - iter.remain; +} +static void amdgpu_devcoredump_free(void *data) +{ + kfree(data); +} +void amdgpu_coredump(struct amdgpu_device *adev, bool vram_lost, + struct amdgpu_reset_context *reset_context) +{ + struct amdgpu_coredump_info *coredump; + struct drm_device *dev = adev_to_drm(adev); + + coredump = kzalloc(sizeof(*coredump), GFP_NOWAIT); + + if (!coredump) { + DRM_ERROR("%s: failed to allocate memory for coredump\n", __func__); + return; + } + + coredump->reset_vram_lost = vram_lost; + + if (reset_context->job && reset_context->job->vm) + coredump->reset_task_info = reset_context->job->vm->task_info; + + coredump->adev = adev; + + ktime_get_ts64(&coredump->reset_time); + + dev_coredumpm(dev->dev, THIS_MODULE, coredump, 0, GFP_NOWAIT, + amdgpu_devcoredump_read, amdgpu_devcoredump_free); +} +#endif diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h index f4a501ff87d9..362954521721 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h @@ -87,6 +87,15 @@ struct amdgpu_reset_domain { atomic_t reset_res; }; +#ifdef CONFIG_DEV_COREDUMP +struct amdgpu_coredump_info { + struct amdgpu_device *adev; + struct amdgpu_task_info reset_task_info; + struct timespec64 reset_time; + bool reset_vram_lost; +}; +#endif + int amdgpu_reset_init(struct amdgpu_device *adev); int amdgpu_reset_fini(struct amdgpu_device *adev); @@ -126,4 +135,6 @@ void amdgpu_device_lock_reset_domain(struct amdgpu_reset_domain *reset_domain); void amdgpu_device_unlock_reset_domain(struct amdgpu_reset_domain *reset_domain); +void amdgpu_coredump(struct amdgpu_device *adev, bool vram_lost, + struct amdgpu_reset_context *reset_context); #endif From patchwork Tue Aug 15 19:51:00 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Andr=C3=A9_Almeida?= X-Patchwork-Id: 13354232 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9C532C001E0 for ; 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Received: from [191.193.179.209] (helo=steammachine.lan) by fanzine2.igalia.com with esmtpsa (Cipher TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim) id 1qW04j-001DUX-RU; Tue, 15 Aug 2023 21:51:34 +0200 From: =?utf-8?q?Andr=C3=A9_Almeida?= To: dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 4/4] drm/amdgpu: Create version number for coredumps Date: Tue, 15 Aug 2023 16:51:00 -0300 Message-ID: <20230815195100.294458-5-andrealmeid@igalia.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230815195100.294458-1-andrealmeid@igalia.com> References: <20230815195100.294458-1-andrealmeid@igalia.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: pierre-eric.pelloux-prayer@amd.com, =?utf-8?q?Andr=C3=A9_Almeida?= , =?utf-8?b?J01hcmVr?= =?utf-8?b?IE9sxaHDoWsn?= , =?utf-8?q?Timur_Krist=C3=B3f?= , Samuel Pitoiset , kernel-dev@igalia.com, alexander.deucher@amd.com, christian.koenig@amd.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Even if there's nothing currently parsing amdgpu's coredump files, if we eventually have such tools they will be glad to find a version field to properly read the file. Create a version number to be displayed on top of coredump file, to be incremented when the file format or content get changed. Signed-off-by: André Almeida --- drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c | 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h | 3 +++ 2 files changed, 4 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c index 46c8d6ce349c..6696ff0a94af 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c @@ -192,6 +192,7 @@ static ssize_t amdgpu_devcoredump_read(char *buffer, loff_t offset, p = drm_coredump_printer(&iter); drm_printf(&p, "**** AMDGPU Device Coredump ****\n"); + drm_printf(&p, "version: " AMDGPU_COREDUMP_VERSION "\n"); drm_printf(&p, "kernel: " UTS_RELEASE "\n"); drm_printf(&p, "module: " KBUILD_MODNAME "\n"); drm_printf(&p, "time: %lld.%09ld\n", coredump->reset_time.tv_sec, coredump->reset_time.tv_nsec); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h index 362954521721..7b6767ca8127 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h @@ -88,6 +88,9 @@ struct amdgpu_reset_domain { }; #ifdef CONFIG_DEV_COREDUMP + +#define AMDGPU_COREDUMP_VERSION "1" + struct amdgpu_coredump_info { struct amdgpu_device *adev; struct amdgpu_task_info reset_task_info;