From patchwork Tue Apr 30 06:13:46 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam X-Patchwork-Id: 793444 Received: from mail-pg1-f171.google.com (mail-pg1-f171.google.com [209.85.215.171]) (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 206AB3D3A0 for ; Tue, 30 Apr 2024 06:14:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.171 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714457659; cv=none; b=nKvHOUzrAuWZ40EYiPoa76zLzoxQrGejdvDmVzazbDhdVwjQUvF50HlMOdVQkuvLE0Vl+lhdnPgOsUWGpx45bXoc4wmV+JBho39HlD1PhWAe8MoBSwmzVnsKAVxhfuwJCJvz4FJRei3R/ISUiFKgFpsiHh3fgha+f072fkk4Bc0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714457659; c=relaxed/simple; bh=m/BK1kL1aRCYhTCw4aRXmvXh94Edt1A2zhsh0TO3Or0=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=awXzfUZJUZ7qVwe0Sw/7F77KrM5vG3yzpOayQWUxVBCEVMbS3dP8a6xhvCBRHRSn2xriFrwYK5UorXTX26nRdlkl/iiLmLNbEnrrvhtp08Lhc08wMXEVQ7YEtV4K1yVp9yvhYDDqpsUeqe+er676imvQdsOYLaLm2Z7aSfMocy0= 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=xMiblaC/; arc=none smtp.client-ip=209.85.215.171 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="xMiblaC/" Received: by mail-pg1-f171.google.com with SMTP id 41be03b00d2f7-5e42b4bbfa4so3247262a12.1 for ; Mon, 29 Apr 2024 23:14:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1714457657; x=1715062457; 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=/H37AIQ5wmgwzS4Pf0bW8eYmacsoQGCozpXOaHqRiEM=; b=xMiblaC/v0bG/CREq9DxCIK8of9ttx5OrlJMKygtTU7y0N0fSza5zrQc2g99qHxz8D NMNsnW7OfjnM9cahUYGa3tBVL0wLkyGMCiY0aiRXKDQTP/mFnrtKcUZkH5XBYIKzijul LeJgNEiKLpqpeAvNKldWU8ffL4O4gsA1SweLOhIklGtxOLXcik/K4qoT7BKPENOGkWPr E+gTeXTCoTVthMj15Rx7JUPVFBoKu7ICzRW5LGXPEgHDRMmoZ33h7nACewA0pzNI97xt U1j4em+HLbSCIQ9MO0vI5RVgyAqdVSJrClpkCHuRUE4BMxky9cd3JcK/UswPU/J22SZN az2g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1714457657; x=1715062457; 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=/H37AIQ5wmgwzS4Pf0bW8eYmacsoQGCozpXOaHqRiEM=; b=HRE8NYzxc/GvH8PcKn3HSG26lFUutvZ87/wIw3P5eb3LVU/4HlUGjGxlVx5KjmrTCq IxUHi4SvDNoXO4EGOqftJN/7IPU4JK6nk5rwRFQ9wiH0AldrUwM26f4FR1fAmdVNc+Zf clwDU9TNJauSiXu7IDXcqd9O3n5hs/OoOAWe6GJMo8koxX3GsZtEe7ysvx1HH9Zs3NAS HcjBcBJJbxWaEDZ4/qdoMAOzt6UAQzrBz4RErmyJ+6Ls7Jz565/xYzl1UxsOlEnAaHCB iCMrdvIt+RpFhi+LawqXnIsNi3dMaw44FO+bYQJKgUvlaLzf4a3grJ4ebow1FL3+UquR z4GA== X-Forwarded-Encrypted: i=1; AJvYcCU1v7tqZliwo0BTQBNhrzjb5vds3eTU7h1Y6lOAjruVxNuEyFWE0IUngX5GTwTE107B9Yd+6Vw2Exn6ZSGsoRe4mRQ4HTY4ejUrIFmRxA== X-Gm-Message-State: AOJu0YxCwnZ0DDpNzSsG/HMn89c8dYoeidYRrjJ7/nVC6zU0Nk0qh0wF 46H1/k+nBmyZzM5MDm4baLWHFBC/Hro8li0Vy0KebQ5l7ncRDGNYo+ULvYRCAQ== X-Google-Smtp-Source: AGHT+IEK21Qn76VtAoqsMJS8BnT1EZxheKPLo0j/8QzYVaALg0yeONBFIjIqq0CJONX0mzP/UwmsUA== X-Received: by 2002:a05:6a20:5608:b0:1ac:8824:156f with SMTP id ir8-20020a056a20560800b001ac8824156fmr1734647pzc.33.1714457657253; Mon, 29 Apr 2024 23:14:17 -0700 (PDT) Received: from [127.0.1.1] ([220.158.156.15]) by smtp.gmail.com with ESMTPSA id bi2-20020a170902bf0200b001e27ad5199csm21393298plb.281.2024.04.29.23.14.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 29 Apr 2024 23:14:16 -0700 (PDT) From: Manivannan Sadhasivam Date: Tue, 30 Apr 2024 11:43:46 +0530 Subject: [PATCH v4 05/10] 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: <20240430-pci-epf-rework-v4-5-22832d0d456f@linaro.org> References: <20240430-pci-epf-rework-v4-0-22832d0d456f@linaro.org> In-Reply-To: <20240430-pci-epf-rework-v4-0-22832d0d456f@linaro.org> To: Lorenzo Pieralisi , =?utf-8?q?Krzysztof_Wilczy?= =?utf-8?q?=C5=84ski?= , Rob Herring , Bjorn Helgaas , Kishon Vijay Abraham I , Jingoo Han , Thierry Reding , Jonathan Hunter 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=3151; i=manivannan.sadhasivam@linaro.org; h=from:subject:message-id; bh=m/BK1kL1aRCYhTCw4aRXmvXh94Edt1A2zhsh0TO3Or0=; b=owEBbQGS/pANAwAKAVWfEeb+kc71AcsmYgBmMIwb/mmu7l58017dF61E5qAM63lf1diuOo6as CMUq7VWEjiJATMEAAEKAB0WIQRnpUMqgUjL2KRYJ5dVnxHm/pHO9QUCZjCMGwAKCRBVnxHm/pHO 9S46B/0QbA5KRHn7a3ev7DPHmzfj4Umq59fIuPGpkLtbjIcfPoG/9SUoD8hQOWCP2HZU+oseGQ5 TSV1jhhuThcZSODFYO7CgD2gUJuLY/fxGXal3mJQhcW5OMk3+DhoMgSmb51hb5E8y88dD6Ep2Rp VzpGIa9KgZ4YSZhg7FrQ/4EpQq2p8wBtpatR/fnLOINvB0CKgtOIXWy8PoOifYUEu/rq8/GziMc RAN96nx+lbhKZwZEqlicm90hQR/v/ltKLRyR5C2xocVDwofd4sYIDi6fqKfEA0lxRQRj7CbV30R SiaTqzeUtnyiS178hHSU84uwPkngYGBUZz1UoHY1qjUUpxvp 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 Tested-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",