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Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; Received: from SATLEXMB04.amd.com (165.204.84.17) by DM6NAM11FT054.mail.protection.outlook.com (10.13.173.95) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.5206.12 via Frontend Transport; Fri, 29 Apr 2022 17:47:06 +0000 Received: from tr4.amd.com (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Fri, 29 Apr 2022 12:47:03 -0500 From: Alex Deucher To: Subject: [PATCH 46/73] drm/amdgpu/mes: implement creating mes process v2 Date: Fri, 29 Apr 2022 13:45:57 -0400 Message-ID: <20220429174624.459475-47-alexander.deucher@amd.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220429174624.459475-1-alexander.deucher@amd.com> References: <20220429174624.459475-1-alexander.deucher@amd.com> MIME-Version: 1.0 Content-Type: text/plain; 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CTRY:US; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:SATLEXMB04.amd.com; PTR:InfoDomainNonexistent; CAT:NONE; SFS:(13230001)(4636009)(46966006)(40470700004)(36840700001)(4326008)(70206006)(70586007)(36756003)(86362001)(508600001)(54906003)(8676002)(7696005)(6666004)(40460700003)(66574015)(6916009)(336012)(316002)(1076003)(186003)(8936002)(26005)(16526019)(83380400001)(426003)(2616005)(356005)(5660300002)(36860700001)(82310400005)(81166007)(2906002)(47076005)(36900700001); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 29 Apr 2022 17:47:06.4113 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 0f585ee6-b12a-4bf2-7bb0-08da2a0846f9 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d; Ip=[165.204.84.17]; Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT054.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN6PR12MB4672 X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alex Deucher , Jack Xiao , =?UTF-8?q?Christian=20K=C3=B6nig?= , Hawking Zhang Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" From: Jack Xiao Create a mes process which contains process-related resources, like vm, doorbell bitmap, process ctx bo and etc. v2: move the simple variable to the end Signed-off-by: Jack Xiao Acked-by: Christian König Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c | 77 +++++++++++++++++++++++++ drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h | 3 + 2 files changed, 80 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c index a988c232b4a3..55005a594be1 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c @@ -214,3 +214,80 @@ void amdgpu_mes_fini(struct amdgpu_device *adev) ida_destroy(&adev->mes.doorbell_ida); mutex_destroy(&adev->mes.mutex); } + +int amdgpu_mes_create_process(struct amdgpu_device *adev, int pasid, + struct amdgpu_vm *vm) +{ + struct amdgpu_mes_process *process; + int r; + + mutex_lock(&adev->mes.mutex); + + /* allocate the mes process buffer */ + process = kzalloc(sizeof(struct amdgpu_mes_process), GFP_KERNEL); + if (!process) { + DRM_ERROR("no more memory to create mes process\n"); + mutex_unlock(&adev->mes.mutex); + return -ENOMEM; + } + + process->doorbell_bitmap = + kzalloc(DIV_ROUND_UP(AMDGPU_MES_MAX_NUM_OF_QUEUES_PER_PROCESS, + BITS_PER_BYTE), GFP_KERNEL); + if (!process->doorbell_bitmap) { + DRM_ERROR("failed to allocate doorbell bitmap\n"); + kfree(process); + mutex_unlock(&adev->mes.mutex); + return -ENOMEM; + } + + /* add the mes process to idr list */ + r = idr_alloc(&adev->mes.pasid_idr, process, pasid, pasid + 1, + GFP_KERNEL); + if (r < 0) { + DRM_ERROR("failed to lock pasid=%d\n", pasid); + goto clean_up_memory; + } + + /* allocate the process context bo and map it */ + r = amdgpu_bo_create_kernel(adev, AMDGPU_MES_PROC_CTX_SIZE, PAGE_SIZE, + AMDGPU_GEM_DOMAIN_GTT, + &process->proc_ctx_bo, + &process->proc_ctx_gpu_addr, + &process->proc_ctx_cpu_ptr); + if (r) { + DRM_ERROR("failed to allocate process context bo\n"); + goto clean_up_pasid; + } + memset(process->proc_ctx_cpu_ptr, 0, AMDGPU_MES_PROC_CTX_SIZE); + + /* allocate the starting doorbell index of the process */ + r = amdgpu_mes_alloc_process_doorbells(adev, process); + if (r < 0) { + DRM_ERROR("failed to allocate doorbell for process\n"); + goto clean_up_ctx; + } + + DRM_DEBUG("process doorbell index = %d\n", process->doorbell_index); + + INIT_LIST_HEAD(&process->gang_list); + process->vm = vm; + process->pasid = pasid; + process->process_quantum = adev->mes.default_process_quantum; + process->pd_gpu_addr = amdgpu_bo_gpu_offset(vm->root.bo); + + mutex_unlock(&adev->mes.mutex); + return 0; + +clean_up_ctx: + amdgpu_bo_free_kernel(&process->proc_ctx_bo, + &process->proc_ctx_gpu_addr, + &process->proc_ctx_cpu_ptr); +clean_up_pasid: + idr_remove(&adev->mes.pasid_idr, pasid); +clean_up_memory: + kfree(process->doorbell_bitmap); + kfree(process); + mutex_unlock(&adev->mes.mutex); + return r; +} diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h index e64b2114c7ba..010a9727cbec 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h @@ -213,4 +213,7 @@ struct amdgpu_mes_funcs { int amdgpu_mes_init(struct amdgpu_device *adev); void amdgpu_mes_fini(struct amdgpu_device *adev); +int amdgpu_mes_create_process(struct amdgpu_device *adev, int pasid, + struct amdgpu_vm *vm); + #endif /* __AMDGPU_MES_H__ */ -- 2.35.1