From patchwork Thu Apr 18 11:58:32 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam X-Patchwork-Id: 13634588 Received: from mail-pf1-f179.google.com (mail-pf1-f179.google.com [209.85.210.179]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D361116079B for ; Thu, 18 Apr 2024 11:59:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.179 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713441548; cv=none; b=V2GCb1UU/zBZ/fBvbro9v8NdT77uVHSkuhSLO4/XuqUSZzGbkXqR2eAx9GLd6EdOTKBtqUrgcYfHAu67kwTp4AfKmQHXk09QzMyBbpYr1D1rPKODd/7pI2IUj4Tf6AhksVRMBQGCpjKb+NRf+D8Qpi7A2O8kmXC4Joqo6T4Ialc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713441548; c=relaxed/simple; bh=ZVpMtASDroG5xgP9YNqj8iEe9ZOXPH9GZK0T5NEQXA0=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=khwJ5JLgjBzM+TdN0VFidNuUxdJu3IHq+ZmAobBchM7G+uVlvD3RsjoWiU+Z5cbroHLp13swcMVwttjB7YDQbFDw+WgydJHIixi2fkQhSksSedqlFwyk0cEHpBYuVU3ilDON8fQvoPpH2xdDbAQOqvv6ym9cL7wKeDU7szuMafI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org; spf=pass smtp.mailfrom=linaro.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b=dKUNkZ6m; arc=none smtp.client-ip=209.85.210.179 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linaro.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="dKUNkZ6m" Received: by mail-pf1-f179.google.com with SMTP id d2e1a72fcca58-6edc61d0ff6so765835b3a.2 for ; Thu, 18 Apr 2024 04:59:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1713441546; x=1714046346; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=VbF6jYa8z7u7B75OT+z/3TtJOTDZ/CVRBSy21cpI2UU=; b=dKUNkZ6mPbW10yeKDvm7fnx+PhmhTdhzD1lwerdQturSfhllQgZ6R4h27uKFQUnQM/ DCZ9z0jtFnjykHEGVGFG2mmYJbgdm7BcptS5tuqlK4V8Xm3D2bPOn4n+TcCTIim8yYbC pTbVaytKv/+ONB+fnzARJZSXPudhe9hay1MqlKlYRfXNw2tB7jm3taqKBQcRDcL6quLV LQirY9sSOlobAdDYmwtDe1tyVIUTAY/PItQuP8I0mmx/e60od6t6C2mjMUXs26KyoU8K 3PGDBX4yUTurzf+tAN2oykkV4FdYhQlKZA3a9sLwZFDhMFrJImfrPPSk9fNND6UphHeW PZbQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1713441546; x=1714046346; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=VbF6jYa8z7u7B75OT+z/3TtJOTDZ/CVRBSy21cpI2UU=; b=pnzNaniAziOpgMe/NroDs2yQwwU9FWUWY+Z+kXeXY95v7xFG8eXr7RosdEiHtAOEfa szy3sRQIZjPs6am7S96kgjcHTTiRjXB+J5+SAHtnheZnZgRutId7U0orRvpNP66p9bfa lkHAGfHvAh1nzLDbCiqQMuKEjln2jEJbxv7SLhWxfvaTIbS7XPzrg/08gGZmEwU/tHHv PDFNZSng2IxQMoYTOZ58ZoFcuR4b/8G5/Q0MwfmAPvhRRWgVHx4vQ5INPFMlxe52UEbe 8tuobvDESWAPUmowxmQkmmXzeLgbU7IQ5VJw500oBDIe9eXPNgjv92BbfKeIMm4SNG6v e8wQ== X-Forwarded-Encrypted: i=1; AJvYcCXEF9nvEWM4mx+Km02JbA5ago4NToFb7k+CofOcnWxkMboCREx3Zzk50V8mdtqJjiLxq5eaxEYPahyW3Sq2HnUJ+5Pep2r69/6TsxKl4Q== X-Gm-Message-State: AOJu0YwqUd86tF8L7/DTo+VPcMKPNd1zZJKrrNWJZK9uw1ogV2ProzfV l6QOuz9tMtAfe2rW1okr58GLqGDmHu1crNZSnSfjJ8rA7REN4wOCY8/giFpzew== X-Google-Smtp-Source: AGHT+IFUqZJeWiWa1CtZkEQ7Bik0cx8rb26ro4ztomJUJSaNvkPyuh+ZAb+eZoScVrR2eXkvMKXePw== X-Received: by 2002:a05:6a21:2709:b0:1a3:5c61:5ec2 with SMTP id rm9-20020a056a21270900b001a35c615ec2mr3227003pzb.16.1713441545866; Thu, 18 Apr 2024 04:59:05 -0700 (PDT) Received: from [127.0.1.1] ([120.56.197.253]) by smtp.gmail.com with ESMTPSA id ei16-20020a056a0080d000b006ed06c4074bsm1305512pfb.85.2024.04.18.04.59.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 18 Apr 2024 04:59:05 -0700 (PDT) From: Manivannan Sadhasivam Date: Thu, 18 Apr 2024 17:28:32 +0530 Subject: [PATCH v3 4/9] PCI: endpoint: pci-epf-test: Refactor pci_epf_test_unbind() function Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240418-pci-epf-rework-v3-4-222a5d1ed2e5@linaro.org> References: <20240418-pci-epf-rework-v3-0-222a5d1ed2e5@linaro.org> In-Reply-To: <20240418-pci-epf-rework-v3-0-222a5d1ed2e5@linaro.org> To: Lorenzo Pieralisi , =?utf-8?q?Krzysztof_Wilczy?= =?utf-8?q?=C5=84ski?= , Rob Herring , Bjorn Helgaas , Kishon Vijay Abraham I , Thierry Reding , Jonathan Hunter , Jingoo Han Cc: linux-pci@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, mhi@lists.linux.dev, linux-tegra@vger.kernel.org, Niklas Cassel , Manivannan Sadhasivam X-Mailer: b4 0.12.4 X-Developer-Signature: v=1; a=openpgp-sha256; l=3105; i=manivannan.sadhasivam@linaro.org; h=from:subject:message-id; bh=ZVpMtASDroG5xgP9YNqj8iEe9ZOXPH9GZK0T5NEQXA0=; b=owEBbQGS/pANAwAKAVWfEeb+kc71AcsmYgBmIQryOLShZtHiBJVHhVR5JPQwr49V+Xp56OD+T vl56bpxcJ6JATMEAAEKAB0WIQRnpUMqgUjL2KRYJ5dVnxHm/pHO9QUCZiEK8gAKCRBVnxHm/pHO 9US0B/47gkQ24P0LmxNcc5MltwwAeuNL2lgqI7bH8WMSnhlr7Vw4ae+BckQ3Z7MFQ+Kre++QZ7u 5meroKS7UvPgDJacyQU3BH8ddRshmENayoejpVw+6vP7cKYYKAtYef/b3empWQjgxxsQ7/+Ra7I iPmVtYC7oK1a5CGAZ8w6iSrMPbU6aqC5YDnt+8CDMJF9YJDM4jcS4wRTv3/YTFTyDlAHYS6EQsi 2DGQFpacfDsQjK2mR9p5nNkoT0mxD6bxU21s5sLV7tje4Sk38pbd0u7JdT5VcZdvI8DpwvlAuHY kLV7CIVNQ4gYe6argJuCkxp1Z+txQCKiSO1x8jems6Szf/zb X-Developer-Key: i=manivannan.sadhasivam@linaro.org; a=openpgp; fpr=C668AEC3C3188E4C611465E7488550E901166008 Move the pci_epc_clear_bar() and pci_epf_free_space() code to respective helper functions. This allows reusing the helpers in future commits. This also requires moving the pci_epf_test_unbind() definition below pci_epf_test_bind() to avoid forward declaration of the above helpers. No functional change. Reviewed-by: Niklas Cassel Signed-off-by: Manivannan Sadhasivam --- drivers/pci/endpoint/functions/pci-epf-test.c | 58 ++++++++++++++++++--------- 1 file changed, 39 insertions(+), 19 deletions(-) diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c index 8175d4f2a0eb..2430384f9a89 100644 --- a/drivers/pci/endpoint/functions/pci-epf-test.c +++ b/drivers/pci/endpoint/functions/pci-epf-test.c @@ -686,25 +686,6 @@ static void pci_epf_test_cmd_handler(struct work_struct *work) msecs_to_jiffies(1)); } -static void pci_epf_test_unbind(struct pci_epf *epf) -{ - struct pci_epf_test *epf_test = epf_get_drvdata(epf); - struct pci_epc *epc = epf->epc; - int bar; - - cancel_delayed_work(&epf_test->cmd_handler); - pci_epf_test_clean_dma_chan(epf_test); - for (bar = 0; bar < PCI_STD_NUM_BARS; bar++) { - if (!epf_test->reg[bar]) - continue; - - pci_epc_clear_bar(epc, epf->func_no, epf->vfunc_no, - &epf->bar[bar]); - pci_epf_free_space(epf, epf_test->reg[bar], bar, - PRIMARY_INTERFACE); - } -} - static int pci_epf_test_set_bar(struct pci_epf *epf) { int bar, ret; @@ -731,6 +712,21 @@ static int pci_epf_test_set_bar(struct pci_epf *epf) return 0; } +static void pci_epf_test_clear_bar(struct pci_epf *epf) +{ + struct pci_epf_test *epf_test = epf_get_drvdata(epf); + struct pci_epc *epc = epf->epc; + int bar; + + for (bar = 0; bar < PCI_STD_NUM_BARS; bar++) { + if (!epf_test->reg[bar]) + continue; + + pci_epc_clear_bar(epc, epf->func_no, epf->vfunc_no, + &epf->bar[bar]); + } +} + static int pci_epf_test_epc_init(struct pci_epf *epf) { struct pci_epf_test *epf_test = epf_get_drvdata(epf); @@ -857,6 +853,20 @@ static int pci_epf_test_alloc_space(struct pci_epf *epf) return 0; } +static void pci_epf_test_free_space(struct pci_epf *epf) +{ + struct pci_epf_test *epf_test = epf_get_drvdata(epf); + int bar; + + for (bar = 0; bar < PCI_STD_NUM_BARS; bar++) { + if (!epf_test->reg[bar]) + continue; + + pci_epf_free_space(epf, epf_test->reg[bar], bar, + PRIMARY_INTERFACE); + } +} + static int pci_epf_test_bind(struct pci_epf *epf) { int ret; @@ -894,6 +904,16 @@ static int pci_epf_test_bind(struct pci_epf *epf) return 0; } +static void pci_epf_test_unbind(struct pci_epf *epf) +{ + struct pci_epf_test *epf_test = epf_get_drvdata(epf); + + cancel_delayed_work(&epf_test->cmd_handler); + pci_epf_test_clean_dma_chan(epf_test); + pci_epf_test_clear_bar(epf); + pci_epf_test_free_space(epf); +} + static const struct pci_epf_device_id pci_epf_test_ids[] = { { .name = "pci_epf_test",