From nobody Wed Dec 17 14:20:36 2025 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 343E2C07CB1 for ; Mon, 27 Nov 2023 12:46:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233406AbjK0Mqk (ORCPT ); Mon, 27 Nov 2023 07:46:40 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49458 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233423AbjK0MqR (ORCPT ); Mon, 27 Nov 2023 07:46:17 -0500 Received: from mail-qk1-x729.google.com (mail-qk1-x729.google.com [IPv6:2607:f8b0:4864:20::729]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4FB52D4D for ; Mon, 27 Nov 2023 04:46:12 -0800 (PST) Received: by mail-qk1-x729.google.com with SMTP id af79cd13be357-777745f1541so238561185a.0 for ; Mon, 27 Nov 2023 04:46:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1701089171; x=1701693971; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=n0WeQVv6xDz1fA7FB+siaDKsF7jHm7RdEkvM6+sXcAk=; b=lZ6cKU83Ln+yT/quD7SMkjuwFY3qBG0aTEJS0eDJLPc+z7f10ZTOE9BTw5yPQsMu4B KjA05E+EIQ82KNtEcJ36VDnA78Sz+Pel8lJ1fOAw2dqzaNyxD2Uwfmot7VKOl8WwAtVC vWol2mFYS1sLZKRoplGwX7i4y+wYwYshYesxG7U/3G8fh+5x7vd33LULhwf8G9yXYGXv cJBGctkrKlqBTw0i2lrLUeQ4/sLTHFND19X7Nv+BzbZpvQ7UsNSfS/lLZd63BYfDszcW MLQw4nTqae/FSEK5EarttPP5YNwtAbXJckpVIq/bVSAddd5zD2r87JsLLJk4PeJ7sQG6 2XQg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1701089171; x=1701693971; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=n0WeQVv6xDz1fA7FB+siaDKsF7jHm7RdEkvM6+sXcAk=; b=oGEkHWSq6QTomEV6/QL8dkTxRhx20SynMNm/1w909cuI99tYl6yyp9qyJ0EaWU0jDn YvWldwlEx/xPW9oidiVZ6XCivp+i0T6yz7/r17UdS9h8Jd/rW7dEKz7vSCQ+jKoMGbAM mRcZbZQhXvpw9hJw7St1DZ/UPCmU3CgQ36+pWxUGH2ceYjbVf4jKiavoqCptZ9eYA2uh GpNDIp/KasKqlIDiqjATOru+n/07iG17MlElcQaFg3iKNW6Xrqe8t8uH42FN+Krcm2hg OQEyNja/YlwnrHJ8+/0g9luiee5sGnQeaLtK+xN9d5+7IvJFpNGD9OG+jr4wq68P4d7/ RixA== X-Gm-Message-State: AOJu0Yz8+edPOmSGVPlS4fPWxpkxpocksmCkkDVzJTsAO5B0xgr5Bx6b qGaV3cSqCxCKqTvJVoRW/qrC X-Google-Smtp-Source: AGHT+IERxAcM9ld/cVONnYwD9Qw8esi9QM+/QvFXWK+aoyDNWVgo9aOd0jymm0Z4uVeT5EbnhzFY6g== X-Received: by 2002:a05:6214:469b:b0:67a:35f3:4408 with SMTP id or27-20020a056214469b00b0067a35f34408mr9911296qvb.31.1701089170905; Mon, 27 Nov 2023 04:46:10 -0800 (PST) Received: from localhost.localdomain ([117.213.103.241]) by smtp.gmail.com with ESMTPSA id er10-20020a056214190a00b0067a204b4688sm2832231qvb.18.2023.11.27.04.46.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 27 Nov 2023 04:46:10 -0800 (PST) From: Manivannan Sadhasivam To: lpieralisi@kernel.org, kw@linux.com Cc: kishon@kernel.org, bhelgaas@google.com, mhi@lists.linux.dev, linux-arm-msm@vger.kernel.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Manivannan Sadhasivam Subject: [PATCH 6/9] PCI: epf-mhi: Enable MHI async read/write support Date: Mon, 27 Nov 2023 18:15:26 +0530 Message-Id: <20231127124529.78203-7-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231127124529.78203-1-manivannan.sadhasivam@linaro.org> References: <20231127124529.78203-1-manivannan.sadhasivam@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Now that both eDMA and iATU are prepared to support async transfer, let's enable MHI async read/write by supplying the relevant callbacks. In the absence of eDMA, iATU will be used for both sync and async operations. Signed-off-by: Manivannan Sadhasivam Reviewed-by: Krzysztof Wilczy=C5=84ski --- drivers/pci/endpoint/functions/pci-epf-mhi.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/pci/endpoint/functions/pci-epf-mhi.c b/drivers/pci/end= point/functions/pci-epf-mhi.c index 3d09a37e5f7c..d3d6a1054036 100644 --- a/drivers/pci/endpoint/functions/pci-epf-mhi.c +++ b/drivers/pci/endpoint/functions/pci-epf-mhi.c @@ -766,12 +766,13 @@ static int pci_epf_mhi_link_up(struct pci_epf *epf) mhi_cntrl->raise_irq =3D pci_epf_mhi_raise_irq; mhi_cntrl->alloc_map =3D pci_epf_mhi_alloc_map; mhi_cntrl->unmap_free =3D pci_epf_mhi_unmap_free; + mhi_cntrl->read_sync =3D mhi_cntrl->read_async =3D pci_epf_mhi_iatu_read; + mhi_cntrl->write_sync =3D mhi_cntrl->write_async =3D pci_epf_mhi_iatu_wri= te; if (info->flags & MHI_EPF_USE_DMA) { mhi_cntrl->read_sync =3D pci_epf_mhi_edma_read; mhi_cntrl->write_sync =3D pci_epf_mhi_edma_write; - } else { - mhi_cntrl->read_sync =3D pci_epf_mhi_iatu_read; - mhi_cntrl->write_sync =3D pci_epf_mhi_iatu_write; + mhi_cntrl->read_async =3D pci_epf_mhi_edma_read_async; + mhi_cntrl->write_async =3D pci_epf_mhi_edma_write_async; } =20 /* Register the MHI EP controller */ --=20 2.25.1