From mboxrd@z Thu Jan 1 00:00:00 1970 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 709FAC433F5 for ; Mon, 21 Mar 2022 13:03:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347694AbiCUNFU (ORCPT ); Mon, 21 Mar 2022 09:05:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56128 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1347679AbiCUNFT (ORCPT ); Mon, 21 Mar 2022 09:05:19 -0400 Received: from mail-lj1-x236.google.com (mail-lj1-x236.google.com [IPv6:2a00:1450:4864:20::236]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BDE6811164 for ; Mon, 21 Mar 2022 06:03:53 -0700 (PDT) Received: by mail-lj1-x236.google.com with SMTP id q14so6424543ljc.12 for ; Mon, 21 Mar 2022 06:03:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=dlA9o1B3cAEKjsPw4UZfHpkn62rMesKmX8Xaat/DqJw=; b=Yy4T/tBKzEJawIoH/P6xKcBUGGvKwFoIf6ZiFasZ5D9A16By9VHgjnm3o9auvohKUk /VtHnY03OpgbU5544PsSaz/ola+itereRmWey7wpbprlgY6J9EAzUWPJHv4XklJWCpAp SugwrKfynpSNdCYYp9eGHG+/S6vlIdLt6usjmn+yMpI0mPoH+0NW3Yn3QHJMZNbxJaXP UC7XrLraWSyb+imdjRGQxrgQVr/AZZbx9bvIJsSAQYG92yL4Us4T+NeLykj3S2UBCHU2 nKgjaupGEoQno4eLufw5TPUyGGlBf456KI4eLRMXuNZsmGz60aPNbxhcKyQLbzbyDSqp 74lw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=dlA9o1B3cAEKjsPw4UZfHpkn62rMesKmX8Xaat/DqJw=; b=NT3koh3nCTFPbGQhTnXOMZrPEaKvzgp5dlpuxZrncHMBc2xLd5pm1NPXeqm/Ryhd0s 51QrSin/AtQ2mwCXRbW4k/wv+8Bu4+Ao5aQ/RYyfqpv4+mMBdzYZfEEkYCjqY2fLaY0F fkcdHEyk9RTJTmd7zZbQTRGL0aflcflMvDZUigBuhMMdWyq0xWk4gGOWfZCaV6HhnxXF WowtqUvjDnmzMoJs+tI6Eo2tNmZZSJKG7Qh6YSN0xl3AgzfHQ/OQRV3ACgNxdjJZWmuH iY2zMFPkKIvKjg/26c8wonjlo688SlHgpNa8jXorx7fEw6aP9mE4/RHwbkD6MKsiLN4y rqLA== X-Gm-Message-State: AOAM5305/hwbPMRsc+hbYm5XtemvprM/TZLf56wbj4wIPGEs6NutexOQ Ezg8lc/j7CVdtjqf5ph9/3jWADL6qE0kUQ== X-Google-Smtp-Source: ABdhPJzY0lTYbzt1vECx3UTcOkmwVlgwRYGbNbIzMSstLyr5PDsnRHnLyqrlMT5D4xqdN56p9c1FMg== X-Received: by 2002:a2e:9692:0:b0:247:e508:714e with SMTP id q18-20020a2e9692000000b00247e508714emr15546606lji.375.1647867831205; Mon, 21 Mar 2022 06:03:51 -0700 (PDT) Received: from jade.urgonet (h-79-136-84-253.A175.priv.bahnhof.se. [79.136.84.253]) by smtp.gmail.com with ESMTPSA id t27-20020a2e8e7b000000b00247f32b572asm2067738ljk.19.2022.03.21.06.03.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Mar 2022 06:03:50 -0700 (PDT) From: Jens Wiklander To: linux-kernel@vger.kernel.org, op-tee@lists.trustedfirmware.org Cc: Sumit Garg , Jens Wiklander Subject: [PATCH v2 0/4] OP-TEE RPC argument cache Date: Mon, 21 Mar 2022 14:03:37 +0100 Message-Id: <20220321130341.935535-1-jens.wiklander@linaro.org> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi all, This patchset optimizes handling of the argument struct passed to call_with_arg when doing a yielding call to OP-TEE. Prior to this was this struct allocated before the yielding call and then freed after it had returned. In case many calls are made in succession this results in quite a bit of unnecessary allocte/free and possibly also switching back and forth to secure work in order to register if needed. Another optimization handles the way the argument struct needed to do RPC is passed. Please see the patch "optee: add OPTEE_SMC_CALL_WITH_RPC_ARG and OPTEE_SMC_CALL_WITH_REGD_ARG" for details. This patchset is based the next branch [1] in my kernel to avoid conflict with other recent patches. Thanks, Jens [1] https://git.linaro.org/people/jens.wiklander/linux-tee.git/log/?h=next v1->v2: * Split out a separate commit "optee: rename rpc_arg_count to rpc_param_count" * Check optee->rpc_param_count before calling optee_disable_shm_cache(). * Mention OPTEE_SMC_CALL_WITH_REGD_ARG in commit message. Jens Wiklander (4): optee: rename rpc_arg_count to rpc_param_count optee: add OPTEE_SMC_CALL_WITH_RPC_ARG and OPTEE_SMC_CALL_WITH_REGD_ARG optee: add FF-A capability OPTEE_FFA_SEC_CAP_ARG_OFFSET optee: cache argument shared memory structs drivers/tee/optee/call.c | 238 ++++++++++++++++++++++++------ drivers/tee/optee/core.c | 1 + drivers/tee/optee/ffa_abi.c | 36 +++-- drivers/tee/optee/optee_ffa.h | 12 +- drivers/tee/optee/optee_private.h | 31 +++- drivers/tee/optee/optee_smc.h | 47 +++++- drivers/tee/optee/smc_abi.c | 162 +++++++++++++++----- 7 files changed, 427 insertions(+), 100 deletions(-) -- 2.31.1