From patchwork Tue Dec 22 00:44:31 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Isaac J. Manjarres" X-Patchwork-Id: 346675 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7A64DC43381 for ; Tue, 22 Dec 2020 00:46:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5076222B2B for ; Tue, 22 Dec 2020 00:46:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726261AbgLVApr (ORCPT ); Mon, 21 Dec 2020 19:45:47 -0500 Received: from so254-31.mailgun.net ([198.61.254.31]:13009 "EHLO so254-31.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726101AbgLVApq (ORCPT ); Mon, 21 Dec 2020 19:45:46 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1608597927; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=bYabydo/dXbRQkL5qXIuDQBWRKY+jGONTXRs3liUi6M=; b=UC+UFZFPVdVfuidL+tApd0uIR6GQ0B5mwXtIUp9UYwFQiE0O0Poxxsy1Lj7+XBBl3otqW8He VasQUbxJ7uvZo1MDy0YxgwX2HUDnP4xQTWRhHA0yrSgaU3FgHF2CsMbMEk+WHViZXrIhNrw+ KEcOQbWWMnRAExDyuReAK2ax0zM= X-Mailgun-Sending-Ip: 198.61.254.31 X-Mailgun-Sid: WyI1MzIzYiIsICJsaW51eC1hcm0tbXNtQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n07.prod.us-east-1.postgun.com with SMTP id 5fe14183b00c0d7ad406b461 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Tue, 22 Dec 2020 00:44:51 GMT Sender: isaacm=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id C7535C43466; Tue, 22 Dec 2020 00:44:50 +0000 (UTC) Received: from isaacm-linux.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: isaacm) by smtp.codeaurora.org (Postfix) with ESMTPSA id 3F294C43464; Tue, 22 Dec 2020 00:44:49 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 3F294C43464 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=isaacm@codeaurora.org From: "Isaac J. Manjarres" To: iommu@lists.linux-foundation.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, freedreno@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org Cc: "Isaac J. Manjarres" , will@kernel.org, joro@8bytes.org, pdaly@codeaurora.org, pratikp@codeaurora.org, kernel-team@android.com, robin.murphy@arm.com Subject: [PATCH v2 2/7] iommu/io-pgtable: Add refcounting for io-pgtable format modules Date: Mon, 21 Dec 2020 16:44:31 -0800 Message-Id: <1608597876-32367-3-git-send-email-isaacm@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1608597876-32367-1-git-send-email-isaacm@codeaurora.org> References: <1608597876-32367-1-git-send-email-isaacm@codeaurora.org> Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org In preparation for modularizing io-pgtable formats, add support for reference counting the io-pgtable format modules to ensure that the modules are not unloaded while they are in use. Signed-off-by: Isaac J. Manjarres --- drivers/iommu/io-pgtable-arm-v7s.c | 1 + drivers/iommu/io-pgtable-arm.c | 5 +++++ drivers/iommu/io-pgtable.c | 12 ++++++++++-- include/linux/io-pgtable.h | 2 ++ 4 files changed, 18 insertions(+), 2 deletions(-) diff --git a/drivers/iommu/io-pgtable-arm-v7s.c b/drivers/iommu/io-pgtable-arm-v7s.c index 89aad2f..a5cb755a 100644 --- a/drivers/iommu/io-pgtable-arm-v7s.c +++ b/drivers/iommu/io-pgtable-arm-v7s.c @@ -840,6 +840,7 @@ static struct io_pgtable_init_fns io_pgtable_arm_v7s_init_fns = { .fmt = ARM_V7S, .alloc = arm_v7s_alloc_pgtable, .free = arm_v7s_free_pgtable, + .owner = THIS_MODULE, }; #ifdef CONFIG_IOMMU_IO_PGTABLE_ARMV7S_SELFTEST diff --git a/drivers/iommu/io-pgtable-arm.c b/drivers/iommu/io-pgtable-arm.c index ff0ea2f..e8b1e34 100644 --- a/drivers/iommu/io-pgtable-arm.c +++ b/drivers/iommu/io-pgtable-arm.c @@ -1049,26 +1049,31 @@ static struct io_pgtable_init_fns io_pgtable_arm_lpae_init_fns[] = { .fmt = ARM_32_LPAE_S1, .alloc = arm_32_lpae_alloc_pgtable_s1, .free = arm_lpae_free_pgtable, + .owner = THIS_MODULE, }, { .fmt = ARM_32_LPAE_S2, .alloc = arm_32_lpae_alloc_pgtable_s2, .free = arm_lpae_free_pgtable, + .owner = THIS_MODULE, }, { .fmt = ARM_64_LPAE_S1, .alloc = arm_64_lpae_alloc_pgtable_s1, .free = arm_lpae_free_pgtable, + .owner = THIS_MODULE, }, { .fmt = ARM_64_LPAE_S2, .alloc = arm_64_lpae_alloc_pgtable_s2, .free = arm_lpae_free_pgtable, + .owner = THIS_MODULE, }, { .fmt = ARM_MALI_LPAE, .alloc = arm_mali_lpae_alloc_pgtable, .free = arm_lpae_free_pgtable, + .owner = THIS_MODULE, }, }; diff --git a/drivers/iommu/io-pgtable.c b/drivers/iommu/io-pgtable.c index 2c6eb2e..cc83542 100644 --- a/drivers/iommu/io-pgtable.c +++ b/drivers/iommu/io-pgtable.c @@ -10,6 +10,7 @@ #include #include #include +#include #include #include #include @@ -52,9 +53,14 @@ struct io_pgtable_ops *alloc_io_pgtable_ops(enum io_pgtable_fmt fmt, if (!fns) return NULL; + if (!try_module_get(fns->owner)) + return NULL; + iop = fns->alloc(cfg, cookie); - if (!iop) + if (!iop) { + module_put(fns->owner); return NULL; + } iop->fmt = fmt; iop->cookie = cookie; @@ -79,8 +85,10 @@ void free_io_pgtable_ops(struct io_pgtable_ops *ops) iop = io_pgtable_ops_to_pgtable(ops); io_pgtable_tlb_flush_all(iop); fns = io_pgtable_get_init_fns(iop->fmt); - if (fns) + if (fns) { fns->free(iop); + module_put(fns->owner); + } } EXPORT_SYMBOL_GPL(free_io_pgtable_ops); diff --git a/include/linux/io-pgtable.h b/include/linux/io-pgtable.h index 45b367ce..a03b262 100644 --- a/include/linux/io-pgtable.h +++ b/include/linux/io-pgtable.h @@ -169,11 +169,13 @@ struct io_pgtable_ops { * @fmt: The page table format. * @alloc: Allocate a set of page tables described by cfg. * @free: Free the page tables associated with iop. + * @owner: Driver module providing these ops. */ struct io_pgtable_init_fns { enum io_pgtable_fmt fmt; struct io_pgtable *(*alloc)(struct io_pgtable_cfg *cfg, void *cookie); void (*free)(struct io_pgtable *iop); + struct module *owner; }; /** From patchwork Tue Dec 22 00:44:32 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Isaac J. Manjarres" X-Patchwork-Id: 346676 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6594FC433E6 for ; Tue, 22 Dec 2020 00:46:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2C7E322D49 for ; Tue, 22 Dec 2020 00:46:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725780AbgLVApp (ORCPT ); Mon, 21 Dec 2020 19:45:45 -0500 Received: from m43-15.mailgun.net ([69.72.43.15]:61932 "EHLO m43-15.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726101AbgLVApo (ORCPT ); Mon, 21 Dec 2020 19:45:44 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1608597920; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=jOAiW5O74HMIsivsb9aAjZ6ruz5TXLo2hBOc34WIMvo=; b=VsxpVFif3luu0mpjLZFIluyCFH8cpjVBSoQGk//n+tnrWBdfhY+4NVZKJmEffWqMx24OF+CG wnpRKTbCwlj3G4RVB7XGYcxmq6ykX5JGonFYM0+DS74h9vY7ytXWht9lbDNkW+bkW9LaFviZ r6Fx6qOPmj3sjfUQAGbWh1TbRE8= X-Mailgun-Sending-Ip: 69.72.43.15 X-Mailgun-Sid: WyI1MzIzYiIsICJsaW51eC1hcm0tbXNtQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n02.prod.us-east-1.postgun.com with SMTP id 5fe14184120d248bb5833ad5 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Tue, 22 Dec 2020 00:44:52 GMT Sender: isaacm=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 49238C433ED; Tue, 22 Dec 2020 00:44:52 +0000 (UTC) Received: from isaacm-linux.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: isaacm) by smtp.codeaurora.org (Postfix) with ESMTPSA id 10A9AC43461; Tue, 22 Dec 2020 00:44:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 10A9AC43461 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=isaacm@codeaurora.org From: "Isaac J. Manjarres" To: iommu@lists.linux-foundation.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, freedreno@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org Cc: "Isaac J. Manjarres" , will@kernel.org, joro@8bytes.org, pdaly@codeaurora.org, pratikp@codeaurora.org, kernel-team@android.com, robin.murphy@arm.com Subject: [PATCH v2 3/7] iommu/arm-smmu: Add dependency on io-pgtable format modules Date: Mon, 21 Dec 2020 16:44:32 -0800 Message-Id: <1608597876-32367-4-git-send-email-isaacm@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1608597876-32367-1-git-send-email-isaacm@codeaurora.org> References: <1608597876-32367-1-git-send-email-isaacm@codeaurora.org> Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org The SMMU driver depends on the availability of the ARM LPAE and ARM V7S io-pgtable format code to work properly. In preparation for having the io-pgtable formats as modules, add a "pre" dependency with MODULE_SOFTDEP() to ensure that the io-pgtable format modules are loaded before loading the ARM SMMU driver module. Signed-off-by: Isaac J. Manjarres --- drivers/iommu/arm/arm-smmu/arm-smmu.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.c b/drivers/iommu/arm/arm-smmu/arm-smmu.c index d8c6bfd..a72649f 100644 --- a/drivers/iommu/arm/arm-smmu/arm-smmu.c +++ b/drivers/iommu/arm/arm-smmu/arm-smmu.c @@ -2351,3 +2351,4 @@ MODULE_DESCRIPTION("IOMMU API for ARM architected SMMU implementations"); MODULE_AUTHOR("Will Deacon "); MODULE_ALIAS("platform:arm-smmu"); MODULE_LICENSE("GPL v2"); +MODULE_SOFTDEP("pre: io-pgtable-arm io-pgtable-arm-v7s"); From patchwork Tue Dec 22 00:44:34 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Isaac J. Manjarres" X-Patchwork-Id: 346673 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 75289C433DB for ; Tue, 22 Dec 2020 00:46:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 440E522AAA for ; Tue, 22 Dec 2020 00:46:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726101AbgLVApr (ORCPT ); Mon, 21 Dec 2020 19:45:47 -0500 Received: from m43-15.mailgun.net ([69.72.43.15]:23253 "EHLO m43-15.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726242AbgLVApr (ORCPT ); Mon, 21 Dec 2020 19:45:47 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1608597928; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=Z0ZowGR4zaHQgcx0nXoZzCUPPTdU48hf87YrqUTmLnY=; b=hfkaazQQFnNgN4Ltx3Vt9sj7N0RDLog1ZJ5dUy9ibplWkA/M6WNMV4D7tEhkvZW5zLv82gNL y40N7CjChQXPR9VcUEr7SDYsxifpgVxkNN1N0/uxKDQdHdV5wXAj7iThWTRa5XuWrIh7tlhe bRqyvkCGrYkoWSBIax+Qmp1O56I= X-Mailgun-Sending-Ip: 69.72.43.15 X-Mailgun-Sid: WyI1MzIzYiIsICJsaW51eC1hcm0tbXNtQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n02.prod.us-west-2.postgun.com with SMTP id 5fe141876d2f42c6668cbad1 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Tue, 22 Dec 2020 00:44:55 GMT Sender: isaacm=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 0BF16C43465; Tue, 22 Dec 2020 00:44:55 +0000 (UTC) Received: from isaacm-linux.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: isaacm) by smtp.codeaurora.org (Postfix) with ESMTPSA id DE3D8C43467; Tue, 22 Dec 2020 00:44:53 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org DE3D8C43467 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=isaacm@codeaurora.org From: "Isaac J. Manjarres" To: iommu@lists.linux-foundation.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, freedreno@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org Cc: "Isaac J. Manjarres" , will@kernel.org, joro@8bytes.org, pdaly@codeaurora.org, pratikp@codeaurora.org, kernel-team@android.com, robin.murphy@arm.com Subject: [PATCH v2 5/7] drm/msm: Add dependency on io-pgtable-arm format module Date: Mon, 21 Dec 2020 16:44:34 -0800 Message-Id: <1608597876-32367-6-git-send-email-isaacm@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1608597876-32367-1-git-send-email-isaacm@codeaurora.org> References: <1608597876-32367-1-git-send-email-isaacm@codeaurora.org> Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org The MSM DRM driver depends on the availability of the ARM LPAE io-pgtable format code to work properly. In preparation for having the io-pgtable formats as modules, add a "pre" dependency with MODULE_SOFTDEP() to ensure that the io-pgtable-arm format module is loaded before loading the MSM DRM driver module. Signed-off-by: Isaac J. Manjarres --- drivers/gpu/drm/msm/msm_drv.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index 535a026..8be3506 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -1369,3 +1369,4 @@ module_exit(msm_drm_unregister); MODULE_AUTHOR("Rob Clark X-Patchwork-Id: 346674 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7738CC43333 for ; Tue, 22 Dec 2020 00:46:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 55C7B22B2D for ; Tue, 22 Dec 2020 00:46:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726627AbgLVApz (ORCPT ); Mon, 21 Dec 2020 19:45:55 -0500 Received: from m43-15.mailgun.net ([69.72.43.15]:58078 "EHLO m43-15.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726540AbgLVApy (ORCPT ); Mon, 21 Dec 2020 19:45:54 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1608597930; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=uRl55kgW9XKzL1b1lRBQjM6Pzb0e5uOth9CmcyHiqfY=; b=kFwtXv1sstzcMYVTiAkUuaLbPVmcdS1iFa20+1WMCoxY38ptkH2p1Ww9n6kj8ZfYbUqaqeL7 ouTeL3CS9lJ0YrDxw1NU0aG7P7o+udzGMwnAM1vIGNh+a2FMwBcUZF6t2JxDvv3MwxdGwems 0NaLA8bh2W5bz8BEVB+B6ZOuqws= X-Mailgun-Sending-Ip: 69.72.43.15 X-Mailgun-Sid: WyI1MzIzYiIsICJsaW51eC1hcm0tbXNtQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n06.prod.us-east-1.postgun.com with SMTP id 5fe14189b00c0d7ad406c3e6 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Tue, 22 Dec 2020 00:44:57 GMT Sender: isaacm=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id E2A83C43468; Tue, 22 Dec 2020 00:44:56 +0000 (UTC) Received: from isaacm-linux.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: isaacm) by smtp.codeaurora.org (Postfix) with ESMTPSA id 900D2C43463; Tue, 22 Dec 2020 00:44:55 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 900D2C43463 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=isaacm@codeaurora.org From: "Isaac J. Manjarres" To: iommu@lists.linux-foundation.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, freedreno@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org Cc: "Isaac J. Manjarres" , will@kernel.org, joro@8bytes.org, pdaly@codeaurora.org, pratikp@codeaurora.org, kernel-team@android.com, robin.murphy@arm.com Subject: [PATCH v2 6/7] drm/panfrost: Add dependency on io-pgtable-arm format module Date: Mon, 21 Dec 2020 16:44:35 -0800 Message-Id: <1608597876-32367-7-git-send-email-isaacm@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1608597876-32367-1-git-send-email-isaacm@codeaurora.org> References: <1608597876-32367-1-git-send-email-isaacm@codeaurora.org> Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org The Panfrost DRM driver depends on the availability of the ARM LPAE io-pgtable format code to work properly. In preparation for having the io-pgtable formats as modules, add a "pre" dependency with MODULE_SOFTDEP() to ensure that the io-pgtable-arm format module is loaded before loading the Panfrost DRM driver module. Signed-off-by: Isaac J. Manjarres --- drivers/gpu/drm/panfrost/panfrost_drv.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/panfrost/panfrost_drv.c b/drivers/gpu/drm/panfrost/panfrost_drv.c index 83a461b..7294622 100644 --- a/drivers/gpu/drm/panfrost/panfrost_drv.c +++ b/drivers/gpu/drm/panfrost/panfrost_drv.c @@ -704,3 +704,4 @@ module_platform_driver(panfrost_driver); MODULE_AUTHOR("Panfrost Project Developers"); MODULE_DESCRIPTION("Panfrost DRM Driver"); MODULE_LICENSE("GPL v2"); +MODULE_SOFTDEP("pre: io-pgtable-arm");