From patchwork Mon Nov 27 12:45:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Manivannan Sadhasivam X-Patchwork-Id: 747626 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="lZ6cKU83" Received: from mail-qt1-x829.google.com (mail-qt1-x829.google.com [IPv6:2607:f8b0:4864:20::829]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 87680D59 for ; Mon, 27 Nov 2023 04:46:12 -0800 (PST) Received: by mail-qt1-x829.google.com with SMTP id d75a77b69052e-423a9cb7e80so8292471cf.3 for ; Mon, 27 Nov 2023 04:46:12 -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=TCvn6IVOTYOeEpkIhaDUul5m3bFeCuXKO2F3HfD1KdRP3NxGq3Nt1su36+Ip/O5CRz QHJ365rpjzWxHkBIi5V6ZtGuqiQvMf8FY+FD4+yTjwRVs1WHTJf0MQZxva5RGyrSQVPA BOjCmTCG6MYm/InA3UGq40EnTuzwerJHiqjdHuimwkB17Jznz0xmDHmcwTZyn01jmJJl YVUjkj+H3LDK/LnL+ThEjviALprFlBTSxw7wIg+nmhV0kbe+1YYp9RgU8B7T93CHOx5q nmJ8iCyWIZSSfwCT0PJU5ZH5wzE7fwIYNmqhsMbRqa5iVB1twjItekNpiihjcYrVzAkR zqQg== X-Gm-Message-State: AOJu0Yy65i20r0xt4Im/OMXBaFKVhVYmsvCrQcbeVavaoO6l4d4AIKqM 7cPkX6tctuBFgp6vlPAQWF3F 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> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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 Wilczyński --- 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/endpoint/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 = pci_epf_mhi_raise_irq; mhi_cntrl->alloc_map = pci_epf_mhi_alloc_map; mhi_cntrl->unmap_free = pci_epf_mhi_unmap_free; + mhi_cntrl->read_sync = mhi_cntrl->read_async = pci_epf_mhi_iatu_read; + mhi_cntrl->write_sync = mhi_cntrl->write_async = pci_epf_mhi_iatu_write; if (info->flags & MHI_EPF_USE_DMA) { mhi_cntrl->read_sync = pci_epf_mhi_edma_read; mhi_cntrl->write_sync = pci_epf_mhi_edma_write; - } else { - mhi_cntrl->read_sync = pci_epf_mhi_iatu_read; - mhi_cntrl->write_sync = pci_epf_mhi_iatu_write; + mhi_cntrl->read_async = pci_epf_mhi_edma_read_async; + mhi_cntrl->write_async = pci_epf_mhi_edma_write_async; } /* Register the MHI EP controller */