From patchwork Fri Dec 10 22:18:44 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671079 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 34E39C43219 for ; Fri, 10 Dec 2021 22:19:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344702AbhLJWWf (ORCPT ); Fri, 10 Dec 2021 17:22:35 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:49686 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344683AbhLJWWW (ORCPT ); Fri, 10 Dec 2021 17:22:22 -0500 Message-ID: <20211210221813.250049810@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174725; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=LAPO48TeSRvyraOCUaLnLGoqr3cykpYVLg5Q2NPw+tk=; b=RVFQBQqAHeoiRwlZ3riRsRVnIL91ZjHAfRJRIp58J8GUnDjLQx7L9kWYIIUbdLwuKR/jwL JcJBPfohipM62TDgI++91yG93z8S9yOtP19oQQE8Q8k13Dz0zt5IP/hM5mMrevOXLmlklN kWOoGd3So5Fe6OgP0QbWV76D4psb9hl5USqdOyh+D6Aqhblm4cpa5e5Vf78Qu6ZYHkQHTi bgYvnB6aYzx+LTLoj46c14I2SP51PPz15FBrvc8JBpekzRO6sF7T8vtiJHTJFweb24goaW joW6zxk5fBYith6L0SW2dhYjEXttIyscMDGJDovBvIbb2eL2uBhx9UWrfH/KNw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174725; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=LAPO48TeSRvyraOCUaLnLGoqr3cykpYVLg5Q2NPw+tk=; b=W5z8GHgzI4pNn8BJLekDX4e1pfDaOzUgMdqste1q3KO/3rlD+JtPo0I0BMrvt2m3/1G3Vk MFABiwOkTOMR3XAQ== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Greg Kroah-Hartman , Bjorn Helgaas , Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 01/35] PCI/MSI: Set pci_dev::msi[x]_enabled early References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:18:44 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org There are quite some places which retrieve the first MSI descriptor to evaluate whether the setup is for MSI or MSI-X. That's required because pci_dev::msi[x]_enabled is only set when the setup completed successfully. There is no real reason why msi[x]_enabled can't be set at the beginning of the setup sequence and cleared in case of a failure. Implement that so the MSI descriptor evaluations can be converted to simple property queries. Signed-off-by: Thomas Gleixner Reviewed-by: Jason Gunthorpe --- V3: New patch --- drivers/pci/msi/msi.c | 23 +++++++++++++++++------ 1 file changed, 17 insertions(+), 6 deletions(-) --- a/drivers/pci/msi/msi.c +++ b/drivers/pci/msi/msi.c @@ -421,11 +421,18 @@ static int msi_capability_init(struct pc struct msi_desc *entry; int ret; - pci_msi_set_enable(dev, 0); /* Disable MSI during set up */ + /* + * Disable MSI during setup in the hardware, but mark it enabled + * so that setup code can evaluate it. + */ + pci_msi_set_enable(dev, 0); + dev->msi_enabled = 1; entry = msi_setup_entry(dev, nvec, affd); - if (!entry) - return -ENOMEM; + if (!entry) { + ret = -ENOMEM; + goto fail; + } /* All MSIs are unmasked by default; mask them all */ pci_msi_mask(entry, msi_multi_mask(entry)); @@ -452,7 +459,6 @@ static int msi_capability_init(struct pc /* Set MSI enabled bits */ pci_intx_for_msi(dev, 0); pci_msi_set_enable(dev, 1); - dev->msi_enabled = 1; pcibios_free_irq(dev); dev->irq = entry->irq; @@ -461,6 +467,8 @@ static int msi_capability_init(struct pc err: pci_msi_unmask(entry, msi_multi_mask(entry)); free_msi_irqs(dev); +fail: + dev->msi_enabled = 0; return ret; } @@ -589,6 +597,9 @@ static int msix_capability_init(struct p pci_msix_clear_and_set_ctrl(dev, 0, PCI_MSIX_FLAGS_MASKALL | PCI_MSIX_FLAGS_ENABLE); + /* Mark it enabled so setup functions can query it */ + dev->msix_enabled = 1; + pci_read_config_word(dev, dev->msix_cap + PCI_MSIX_FLAGS, &control); /* Request & Map MSI-X table region */ tsize = msix_table_size(control); @@ -626,9 +637,8 @@ static int msix_capability_init(struct p dev->msi_irq_groups = groups; - /* Set MSI-X enabled bits and unmask the function */ + /* Disable INTX and unmask MSI-X */ pci_intx_for_msi(dev, 0); - dev->msix_enabled = 1; pci_msix_clear_and_set_ctrl(dev, PCI_MSIX_FLAGS_MASKALL, 0); pcibios_free_irq(dev); @@ -638,6 +648,7 @@ static int msix_capability_init(struct p free_msi_irqs(dev); out_disable: + dev->msix_enabled = 0; pci_msix_clear_and_set_ctrl(dev, PCI_MSIX_FLAGS_ENABLE, 0); return ret; From patchwork Fri Dec 10 22:18:46 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671081 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 6C578C4167D for ; Fri, 10 Dec 2021 22:19:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344711AbhLJWWi (ORCPT ); Fri, 10 Dec 2021 17:22:38 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:49730 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231806AbhLJWWX (ORCPT ); Fri, 10 Dec 2021 17:22:23 -0500 Message-ID: <20211210221813.311410967@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174727; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=4+wAkdppI+0FsjiVOjRoboRfUoEGu3PdDBK/1dnuCFY=; b=ijWPKjClq9DRfiqDCauUOqeI5yYXU3tP5wg1MsLiKOCZqSOsagFln3c4OzFUS8Elgn46kT qZIz6lyQXHxfolX96i5XU3cIY+D4MK65b0BisdPtXRaGLKyN22HIG9WMFc+a+Pb5r7Yt/N eix//MgfLCsvJT9BqyxVTdFM2ahx+ztKJ8+enXpo3Chemrr7l8l5NLYSQHADKus4XYZZnO QmX2SU6sGHvlTDt+nKERO7dywK6hGk9HZOEQsczXKbt2T6kRuRb78llE48vY+tc3PmAP5s m+ydYZQD/Zwgx9B4Nu5/uGrHlQvSDdMfqU4QRjzINF5B0nfUQ1l0aHNZvqeKkQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174727; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=4+wAkdppI+0FsjiVOjRoboRfUoEGu3PdDBK/1dnuCFY=; b=GMWdydzWOH0ZCkNPtZwjkukJHdiZ5ohuNFeG5sc5tFhBJYzUGlpxrb3zsKf8GNmvxEolyK fEg7ZZ5yE3oPqGCg== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Greg Kroah-Hartman , Bjorn Helgaas , Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 02/35] x86/pci/XEN: Use PCI device property References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:18:46 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner instead of fiddling with MSI descriptors. Signed-off-by: Thomas Gleixner Cc: Juergen Gross Cc: xen-devel@lists.xenproject.org Reviewed-by: Jason Gunthorpe --- V3: Use pci_dev->msix_enabled. --- arch/x86/pci/xen.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) --- a/arch/x86/pci/xen.c +++ b/arch/x86/pci/xen.c @@ -399,9 +399,7 @@ static void xen_teardown_msi_irqs(struct static void xen_pv_teardown_msi_irqs(struct pci_dev *dev) { - struct msi_desc *msidesc = first_pci_msi_entry(dev); - - if (msidesc->pci.msi_attrib.is_msix) + if (dev->msix_enabled) xen_pci_frontend_disable_msix(dev); else xen_pci_frontend_disable_msi(dev); @@ -417,10 +415,7 @@ static int xen_msi_domain_alloc_irqs(str if (WARN_ON_ONCE(!dev_is_pci(dev))) return -EINVAL; - if (first_msi_entry(dev)->pci.msi_attrib.is_msix) - type = PCI_CAP_ID_MSIX; - else - type = PCI_CAP_ID_MSI; + type = to_pci_dev(dev)->msix_enabled ? PCI_CAP_ID_MSIX : PCI_CAP_ID_MSI; return xen_msi_ops.setup_msi_irqs(to_pci_dev(dev), nvec, type); } From patchwork Fri Dec 10 22:18:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671083 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 83257C433EF for ; Fri, 10 Dec 2021 22:19:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344687AbhLJWWm (ORCPT ); Fri, 10 Dec 2021 17:22:42 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:49782 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344684AbhLJWWZ (ORCPT ); Fri, 10 Dec 2021 17:22:25 -0500 Message-ID: <20211210221813.372357371@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174728; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=jxff/xJv3Qst4ZB5tRChjTLXCWZK8WA2PIPQRiU/rvY=; b=0nUrI//widUx8A75bvq7IZvZU0OgOd7DLmm1Zp2ltSlJUJ9r/TrE9oF6ObjsG/CcBOkiYi qXw9+h4dQG4uyEMuyKeiBlxL4kElXM0TpMwsf3wmE81Z2stJW+ptloJgs/g6qP6M8dR2QU njRyGX3+6rX5xnHULZR7tzFqLrE14gpMsFum/pVWgPlIZ+TpaG54gue+YwCmJ2mvy52BBv eJfY6AUb8aIr3HCk56T6i2B/ksAdJHhdmvylSbmQ1UvjRhp/j3IltXf1nTsUbtPgTPyfJ7 dTv1xOVMJ9eZrRTBBhQoxRXkLcJLQxyY0zHx9KeMYtAVYinBZUzQopdXWot8gQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174728; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=jxff/xJv3Qst4ZB5tRChjTLXCWZK8WA2PIPQRiU/rvY=; b=vv6Me8N9GQvFvm+KtHhMWgm41j6C3fva9jay/jD8ClFpKD7/3pJq+KAqrq6JZCZO9BTGwf CoMF7Kja5mNu2oDA== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Greg Kroah-Hartman , Bjorn Helgaas , Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 03/35] x86/apic/msi: Use PCI device MSI property References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:18:47 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner instead of fiddling with MSI descriptors. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe --- V3: Use pci_dev->msix_enabled - Jason --- arch/x86/kernel/apic/msi.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) --- a/arch/x86/kernel/apic/msi.c +++ b/arch/x86/kernel/apic/msi.c @@ -160,11 +160,8 @@ static struct irq_chip pci_msi_controlle int pci_msi_prepare(struct irq_domain *domain, struct device *dev, int nvec, msi_alloc_info_t *arg) { - struct pci_dev *pdev = to_pci_dev(dev); - struct msi_desc *desc = first_pci_msi_entry(pdev); - init_irq_alloc_info(arg, NULL); - if (desc->pci.msi_attrib.is_msix) { + if (to_pci_dev(dev)->msix_enabled) { arg->type = X86_IRQ_ALLOC_TYPE_PCI_MSIX; } else { arg->type = X86_IRQ_ALLOC_TYPE_PCI_MSI; From patchwork Fri Dec 10 22:18:49 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671087 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 6B813C4167D for ; Fri, 10 Dec 2021 22:19:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344737AbhLJWWq (ORCPT ); Fri, 10 Dec 2021 17:22:46 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54528 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344691AbhLJWW3 (ORCPT ); Fri, 10 Dec 2021 17:22:29 -0500 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 62527C061746; Fri, 10 Dec 2021 14:18:51 -0800 (PST) Message-ID: <20211210221813.434156196@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174730; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=VrU+cUwVNt/tRlW4lw+bzWjrRhpWxr0n5kAnta20rq4=; b=pE4rQ2ru1rC+MOxwgCFck9hIsKI0LjZICNGNwEw8ze9/meweY1qANt4dgwIHKfQOPC1beg yPBns7caG7PjSlQkEoMvTCi/DDid/5ijo+pcU/3ZLIE1LS+qQRJIeuxZj2Mi/GYsUgFxDG UfE4buF12pfMJCkH4E7kXOGXF3Tdxoadhmimlb4Oqaa6At4sxsqGTcRd4XwvSUVolW7xT/ BZ6l4WzdOdHBFzRU8fuHCGeKVTvU3fpMB68bg/XbArySIyUaHyjLg/eiywsouAZhDcRfnk 7ETqReSwtzm9CpcynGCRQWFvda5xRxitOgtngCsHnX2u5kMmZ6hOfaZO1ylegg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174730; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=VrU+cUwVNt/tRlW4lw+bzWjrRhpWxr0n5kAnta20rq4=; b=4a4+C7WhuYdeuyTtWKdNyTdvLDhhfziSubOZ+5mUXlzgk+OuqIM6rjcLPfL3/GtWFOnIFc gcXKQZiyuUQutAAA== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Greg Kroah-Hartman , Bjorn Helgaas , Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 04/35] genirq/msi: Use PCI device property References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:18:49 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner to determine whether this is MSI or MSIX instead of consulting MSI descriptors. Signed-off-by: Thomas Gleixner Reviewed-by: Jason Gunthorpe --- V2: Use PCI device property - Jason --- kernel/irq/msi.c | 17 ++--------------- 1 file changed, 2 insertions(+), 15 deletions(-) --- a/kernel/irq/msi.c +++ b/kernel/irq/msi.c @@ -77,21 +77,8 @@ EXPORT_SYMBOL_GPL(get_cached_msi_msg); static ssize_t msi_mode_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct msi_desc *entry; - bool is_msix = false; - unsigned long irq; - int retval; - - retval = kstrtoul(attr->attr.name, 10, &irq); - if (retval) - return retval; - - entry = irq_get_msi_desc(irq); - if (!entry) - return -ENODEV; - - if (dev_is_pci(dev)) - is_msix = entry->pci.msi_attrib.is_msix; + /* MSI vs. MSIX is per device not per interrupt */ + bool is_msix = dev_is_pci(dev) ? to_pci_dev(dev)->msix_enabled : false; return sysfs_emit(buf, "%s\n", is_msix ? "msix" : "msi"); } From patchwork Fri Dec 10 22:18:51 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671085 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 953E3C43217 for ; Fri, 10 Dec 2021 22:19:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344723AbhLJWWo (ORCPT ); Fri, 10 Dec 2021 17:22:44 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54530 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344690AbhLJWW3 (ORCPT ); Fri, 10 Dec 2021 17:22:29 -0500 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E731FC0617A1; Fri, 10 Dec 2021 14:18:52 -0800 (PST) Message-ID: <20211210221813.493922179@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174731; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=cKJHJ5pvxdQcbJzsUJMGqgFGoQj9I03QbSL7vU1xGJs=; b=1jYFlR/s4Fj8fK94IM8CGV2VaLN70VTxWOKgzd9JP93YsuiSkhZnYFY06GM/ck1LqQztP1 MLFaGOIeCqYoexBgXapeoyYhkU0pOjGlXAPId/ebxaePxjkxMr+yK8v+0hb5X4+5ZG7B1H +va0VUPX0Xv4Yu86zDErk4wKNgJjI/W705RdoDtPXV+TGIU1/gfVAaxPimBu0jir0PtNCO fOlCra2fXDQuTRaSAH0ZtTlPuz+4kAZXETO59wFrYfdqVEy+3UT6OV5Rro3KejHz+49vks CFqN18s6k1HR1ibmPHBMCiufu6FCMC8wl1bZC8BEvjjvQ7GzWILhEocUSrICGA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174731; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=cKJHJ5pvxdQcbJzsUJMGqgFGoQj9I03QbSL7vU1xGJs=; b=CKltebaN9sJb+/12aypx+vxMoPzMz+hKX+LQCpakacpcX5G/L+sQu6V9DoCJj9DznHwv8C jZHW+tYr3PY7biBA== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Juergen Gross , xen-devel@lists.xenproject.org, Greg Kroah-Hartman , Bjorn Helgaas , Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 05/35] powerpc/cell/axon_msi: Use PCI device property References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:18:51 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner instead of fiddling with MSI descriptors. Signed-off-by: Thomas Gleixner Cc: Arnd Bergmann Cc: Michael Ellerman Cc: Benjamin Herrenschmidt Cc: linuxppc-dev@lists.ozlabs.org Acked-by: Arnd Bergmann Reviewed-by: Jason Gunthorpe --- V3: Use pci_dev property - Jason V2: Invoke the function with the correct number of arguments - Andy --- arch/powerpc/platforms/cell/axon_msi.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) --- a/arch/powerpc/platforms/cell/axon_msi.c +++ b/arch/powerpc/platforms/cell/axon_msi.c @@ -199,7 +199,6 @@ static struct axon_msic *find_msi_transl static int setup_msi_msg_address(struct pci_dev *dev, struct msi_msg *msg) { struct device_node *dn; - struct msi_desc *entry; int len; const u32 *prop; @@ -209,10 +208,8 @@ static int setup_msi_msg_address(struct return -ENODEV; } - entry = first_pci_msi_entry(dev); - for (; dn; dn = of_get_next_parent(dn)) { - if (entry->pci.msi_attrib.is_64) { + if (!dev->no_64bit_msi) { prop = of_get_property(dn, "msi-address-64", &len); if (prop) break; From patchwork Fri Dec 10 22:18:52 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671089 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 5A499C43219 for ; Fri, 10 Dec 2021 22:19:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344746AbhLJWWs (ORCPT ); Fri, 10 Dec 2021 17:22:48 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:49920 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344692AbhLJWWa (ORCPT ); Fri, 10 Dec 2021 17:22:30 -0500 Message-ID: <20211210221813.556202506@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174733; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=4RBIpMLSx9fo7S3MVLgbPP6cYR3euRHVRt1vIjvLV4U=; b=eFwbxZ19sBwXOtZfaU9b68cRvDQr8Sc+5tFM8f+F85TqivDCre0VEP725UcXl+uCQNVwKg th5/P6pSHGU17/a07xZLVPs/inK96YGN0P8AVWusIBfugZ1VzOQwzILhbCMtpONvc2WXfS 7tC0gKf8ggCcvGX0cZsFURAzOnX4SWiSiWBvq0yugB0Urkr1RzoMtfW4UBhLOolAcHMWEq 8H9bNQmYEImVfPDpv7nBqpZqvmsgnsh02b/+ZEunwO9Rs+JWgiGZd954VBu+PM2tDQZVj6 8gav38VhnHP0iMod6jbXLJ3KUM93DcPae/bJJ76Y8Igr1sJLMglnyFtpTjhkSQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174733; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=4RBIpMLSx9fo7S3MVLgbPP6cYR3euRHVRt1vIjvLV4U=; b=WYa+NdWlWzJ03zg9xAtS1+YMoE5TJHwS2b+RN+noddeR78xU6q7+ZPKxIZRkWf4y7NHAji EqHm91dbXa6KWXAg== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Michael Ellerman , linuxppc-dev@lists.ozlabs.org, Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Benjamin Herrenschmidt , Greg Kroah-Hartman , Bjorn Helgaas , Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 06/35] powerpc/pseries/msi: Use PCI device properties References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:18:52 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner instead of fiddling with MSI descriptors. Signed-off-by: Thomas Gleixner Cc: Michael Ellerman Cc: linuxppc-dev@lists.ozlabs.org Reviewed-by: Jason Gunthorpe --- V3: Use pci_dev->msix_enabled - Jason --- arch/powerpc/platforms/pseries/msi.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/arch/powerpc/platforms/pseries/msi.c +++ b/arch/powerpc/platforms/pseries/msi.c @@ -448,8 +448,7 @@ static int pseries_msi_ops_prepare(struc int nvec, msi_alloc_info_t *arg) { struct pci_dev *pdev = to_pci_dev(dev); - struct msi_desc *desc = first_pci_msi_entry(pdev); - int type = desc->pci.msi_attrib.is_msix ? PCI_CAP_ID_MSIX : PCI_CAP_ID_MSI; + int type = pdev->msix_enabled ? PCI_CAP_ID_MSIX : PCI_CAP_ID_MSI; return rtas_prepare_msi_irqs(pdev, nvec, type, arg); } From patchwork Fri Dec 10 22:18:54 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671091 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 C9752C433EF for ; Fri, 10 Dec 2021 22:19:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344758AbhLJWWt (ORCPT ); Fri, 10 Dec 2021 17:22:49 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:49962 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344694AbhLJWWd (ORCPT ); Fri, 10 Dec 2021 17:22:33 -0500 Message-ID: <20211210221813.617178827@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174734; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=c/XqPp4te0pGFEO121hhae+RVpBGIyhacVujKOuJMfc=; b=c9kLrkEE4SZLzTdO73+YczGJvawG4Gf3p3TUiTiMwo54SU/QEOeY2nx7mZLN9uN6JdMrva rjs/bftb9qpy6W5cncJBSTQQzH57vMtE2RJs/pOQte/5cAgqpv801V+Tk5+ZKjxDBWSPka aU966ak4VZQfVbIHcgDfWLfkiY5iiJno0fGYqzsPNazKyDctL82sOMpo79N6Hsn4CZByDM EC8LIrUHzK2NzKTpO7du4uU4vQTrEuwaK3AAC5Acp1jCxge80UiPnPbkSGjXnORjX63pGO DJMHiZOr3/B6zDq6uxlq0XYpf6ESjVsWEEvFs1wQ6cty7jHTVWuos4fJy1e1Qg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174734; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=c/XqPp4te0pGFEO121hhae+RVpBGIyhacVujKOuJMfc=; b=r0mvGgHyMEnHD4S+QN87CZIaHBk1HZRFCOJ4fgFQslfgfSFuxSwl3fgnaESHLdEse+PmeN wm9h29SwPoz5xODg== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Greg Kroah-Hartman , Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Bjorn Helgaas , Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 07/35] device: Move MSI related data into a struct References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:18:54 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner The only unconditional part of MSI data in struct device is the irqdomain pointer. Everything else can be allocated on demand. Create a data structure and move the irqdomain pointer into it. The other MSI specific parts are going to be removed from struct device in later steps. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe Acked-by: Arnd Bergmann --- drivers/base/platform-msi.c | 12 ++++++------ drivers/dma/ti/k3-udma.c | 4 ++-- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 2 +- drivers/irqchip/irq-mvebu-icu.c | 6 +++--- drivers/soc/ti/k3-ringacc.c | 4 ++-- drivers/soc/ti/ti_sci_inta_msi.c | 2 +- include/linux/device.h | 20 ++++++++++++++------ 7 files changed, 29 insertions(+), 21 deletions(-) --- a/drivers/base/platform-msi.c +++ b/drivers/base/platform-msi.c @@ -210,10 +210,10 @@ platform_msi_alloc_priv_data(struct devi * accordingly (which would impact the max number of MSI * capable devices). */ - if (!dev->msi_domain || !write_msi_msg || !nvec || nvec > MAX_DEV_MSIS) + if (!dev->msi.domain || !write_msi_msg || !nvec || nvec > MAX_DEV_MSIS) return ERR_PTR(-EINVAL); - if (dev->msi_domain->bus_token != DOMAIN_BUS_PLATFORM_MSI) { + if (dev->msi.domain->bus_token != DOMAIN_BUS_PLATFORM_MSI) { dev_err(dev, "Incompatible msi_domain, giving up\n"); return ERR_PTR(-EINVAL); } @@ -269,7 +269,7 @@ int platform_msi_domain_alloc_irqs(struc if (err) goto out_free_priv_data; - err = msi_domain_alloc_irqs(dev->msi_domain, dev, nvec); + err = msi_domain_alloc_irqs(dev->msi.domain, dev, nvec); if (err) goto out_free_desc; @@ -282,7 +282,7 @@ int platform_msi_domain_alloc_irqs(struc return 0; out_free_irqs: - msi_domain_free_irqs(dev->msi_domain, dev); + msi_domain_free_irqs(dev->msi.domain, dev); out_free_desc: platform_msi_free_descs(dev, 0, nvec); out_free_priv_data: @@ -306,7 +306,7 @@ void platform_msi_domain_free_irqs(struc platform_msi_free_priv_data(desc->platform.msi_priv_data); } - msi_domain_free_irqs(dev->msi_domain, dev); + msi_domain_free_irqs(dev->msi.domain, dev); platform_msi_free_descs(dev, 0, MAX_DEV_MSIS); } EXPORT_SYMBOL_GPL(platform_msi_domain_free_irqs); @@ -354,7 +354,7 @@ struct irq_domain * return NULL; data->host_data = host_data; - domain = irq_domain_create_hierarchy(dev->msi_domain, 0, + domain = irq_domain_create_hierarchy(dev->msi.domain, 0, is_tree ? 0 : nvec, dev->fwnode, ops, data); if (!domain) --- a/drivers/dma/ti/k3-udma.c +++ b/drivers/dma/ti/k3-udma.c @@ -5279,9 +5279,9 @@ static int udma_probe(struct platform_de if (IS_ERR(ud->ringacc)) return PTR_ERR(ud->ringacc); - dev->msi_domain = of_msi_get_domain(dev, dev->of_node, + dev->msi.domain = of_msi_get_domain(dev, dev->of_node, DOMAIN_BUS_TI_SCI_INTA_MSI); - if (!dev->msi_domain) { + if (!dev->msi.domain) { dev_err(dev, "Failed to get MSI domain\n"); return -EPROBE_DEFER; } --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -3170,7 +3170,7 @@ static void arm_smmu_setup_msis(struct a if (!(smmu->features & ARM_SMMU_FEAT_MSI)) return; - if (!dev->msi_domain) { + if (!dev->msi.domain) { dev_info(smmu->dev, "msi_domain absent - falling back to wired irqs\n"); return; } --- a/drivers/irqchip/irq-mvebu-icu.c +++ b/drivers/irqchip/irq-mvebu-icu.c @@ -314,12 +314,12 @@ static int mvebu_icu_subset_probe(struct msi_data->subset_data = of_device_get_match_data(dev); } - dev->msi_domain = of_msi_get_domain(dev, dev->of_node, + dev->msi.domain = of_msi_get_domain(dev, dev->of_node, DOMAIN_BUS_PLATFORM_MSI); - if (!dev->msi_domain) + if (!dev->msi.domain) return -EPROBE_DEFER; - msi_parent_dn = irq_domain_get_of_node(dev->msi_domain); + msi_parent_dn = irq_domain_get_of_node(dev->msi.domain); if (!msi_parent_dn) return -ENODEV; --- a/drivers/soc/ti/k3-ringacc.c +++ b/drivers/soc/ti/k3-ringacc.c @@ -1356,9 +1356,9 @@ static int k3_ringacc_init(struct platfo struct resource *res; int ret, i; - dev->msi_domain = of_msi_get_domain(dev, dev->of_node, + dev->msi.domain = of_msi_get_domain(dev, dev->of_node, DOMAIN_BUS_TI_SCI_INTA_MSI); - if (!dev->msi_domain) { + if (!dev->msi.domain) { dev_err(dev, "Failed to get MSI domain\n"); return -EPROBE_DEFER; } --- a/drivers/soc/ti/ti_sci_inta_msi.c +++ b/drivers/soc/ti/ti_sci_inta_msi.c @@ -140,7 +140,7 @@ EXPORT_SYMBOL_GPL(ti_sci_inta_msi_domain void ti_sci_inta_msi_domain_free_irqs(struct device *dev) { - msi_domain_free_irqs(dev->msi_domain, dev); + msi_domain_free_irqs(dev->msi.domain, dev); ti_sci_inta_msi_free_descs(dev); } EXPORT_SYMBOL_GPL(ti_sci_inta_msi_domain_free_irqs); --- a/include/linux/device.h +++ b/include/linux/device.h @@ -372,6 +372,16 @@ struct dev_links_info { }; /** + * struct dev_msi_info - Device data related to MSI + * @domain: The MSI interrupt domain associated to the device + */ +struct dev_msi_info { +#ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN + struct irq_domain *domain; +#endif +}; + +/** * struct device - The basic device structure * @parent: The device's "parent" device, the device to which it is attached. * In most cases, a parent device is some sort of bus or host @@ -407,8 +417,8 @@ struct dev_links_info { * @em_pd: device's energy model performance domain * @pins: For device pin management. * See Documentation/driver-api/pin-control.rst for details. + * @msi: MSI related data * @msi_list: Hosts MSI descriptors - * @msi_domain: The generic MSI domain this device is using. * @numa_node: NUMA node this device is close to. * @dma_ops: DMA mapping operations for this device. * @dma_mask: Dma mask (if dma'ble device). @@ -500,12 +510,10 @@ struct device { struct em_perf_domain *em_pd; #endif -#ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN - struct irq_domain *msi_domain; -#endif #ifdef CONFIG_PINCTRL struct dev_pin_info *pins; #endif + struct dev_msi_info msi; #ifdef CONFIG_GENERIC_MSI_IRQ struct list_head msi_list; #endif @@ -666,7 +674,7 @@ static inline void set_dev_node(struct d static inline struct irq_domain *dev_get_msi_domain(const struct device *dev) { #ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN - return dev->msi_domain; + return dev->msi.domain; #else return NULL; #endif @@ -675,7 +683,7 @@ static inline struct irq_domain *dev_get static inline void dev_set_msi_domain(struct device *dev, struct irq_domain *d) { #ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN - dev->msi_domain = d; + dev->msi.domain = d; #endif } From patchwork Fri Dec 10 22:18:55 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671093 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 62A40C4332F for ; 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a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174736; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=p0CEuniGVD/vlSD2Fd4mo52TznQAMRoSID0Sm2FVZu8=; b=zhgOEeEWgyS9usG6W9uHpuhsscfbHbM2ZMw8+DHKOUDQaF6OiHOi+rB1GbyoR+ygezP0WN J/NyrFyVzR5cUZAA== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Greg Kroah-Hartman , Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Bjorn Helgaas , Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 08/35] device: Add device:: Msi_data pointer and struct msi_device_data References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:18:55 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner Create struct msi_device_data and add a pointer of that type to struct dev_msi_info, which is part of struct device. Provide an allocator function which can be invoked from the MSI interrupt allocation code pathes. Add a properties field to the data structure as a first member so the allocation size is not zero bytes. The field will be uses later on. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe --- include/linux/device.h | 5 +++++ include/linux/msi.h | 18 ++++++++++++++++++ kernel/irq/msi.c | 32 ++++++++++++++++++++++++++++++++ 3 files changed, 55 insertions(+) --- a/include/linux/device.h +++ b/include/linux/device.h @@ -45,6 +45,7 @@ struct iommu_ops; struct iommu_group; struct dev_pin_info; struct dev_iommu; +struct msi_device_data; /** * struct subsys_interface - interfaces to device functions @@ -374,11 +375,15 @@ struct dev_links_info { /** * struct dev_msi_info - Device data related to MSI * @domain: The MSI interrupt domain associated to the device + * @data: Pointer to MSI device data */ struct dev_msi_info { #ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN struct irq_domain *domain; #endif +#ifdef CONFIG_GENERIC_MSI_IRQ + struct msi_device_data *data; +#endif }; /** --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -171,6 +171,16 @@ struct msi_desc { }; }; +/** + * msi_device_data - MSI per device data + * @properties: MSI properties which are interesting to drivers + */ +struct msi_device_data { + unsigned long properties; +}; + +int msi_setup_device_data(struct device *dev); + /* Helpers to hide struct msi_desc implementation details */ #define msi_desc_to_dev(desc) ((desc)->dev) #define dev_to_msi_list(dev) (&(dev)->msi_list) @@ -233,10 +243,16 @@ void pci_msi_mask_irq(struct irq_data *d void pci_msi_unmask_irq(struct irq_data *data); #ifdef CONFIG_SYSFS +int msi_device_populate_sysfs(struct device *dev); +void msi_device_destroy_sysfs(struct device *dev); + const struct attribute_group **msi_populate_sysfs(struct device *dev); void msi_destroy_sysfs(struct device *dev, const struct attribute_group **msi_irq_groups); #else +static inline int msi_device_populate_sysfs(struct device *dev) { return 0; } +static inline void msi_device_destroy_sysfs(struct device *dev) { } + static inline const struct attribute_group **msi_populate_sysfs(struct device *dev) { return NULL; @@ -384,6 +400,8 @@ enum { MSI_FLAG_MUST_REACTIVATE = (1 << 5), /* Is level-triggered capable, using two messages */ MSI_FLAG_LEVEL_CAPABLE = (1 << 6), + /* Populate sysfs on alloc() and destroy it on free() */ + MSI_FLAG_DEV_SYSFS = (1 << 7), }; int msi_domain_set_affinity(struct irq_data *data, const struct cpumask *mask, --- a/kernel/irq/msi.c +++ b/kernel/irq/msi.c @@ -73,6 +73,38 @@ void get_cached_msi_msg(unsigned int irq } EXPORT_SYMBOL_GPL(get_cached_msi_msg); +static void msi_device_data_release(struct device *dev, void *res) +{ + WARN_ON_ONCE(!list_empty(&dev->msi_list)); + dev->msi.data = NULL; +} + +/** + * msi_setup_device_data - Setup MSI device data + * @dev: Device for which MSI device data should be set up + * + * Return: 0 on success, appropriate error code otherwise + * + * This can be called more than once for @dev. If the MSI device data is + * already allocated the call succeeds. The allocated memory is + * automatically released when the device is destroyed. + */ +int msi_setup_device_data(struct device *dev) +{ + struct msi_device_data *md; + + if (dev->msi.data) + return 0; + + md = devres_alloc(msi_device_data_release, sizeof(*md), GFP_KERNEL); + if (!md) + return -ENOMEM; + + dev->msi.data = md; + devres_add(dev, md); + return 0; +} + #ifdef CONFIG_SYSFS static ssize_t msi_mode_show(struct device *dev, struct device_attribute *attr, char *buf) From patchwork Fri Dec 10 22:18:57 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671095 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 E56D6C4167D for ; Fri, 10 Dec 2021 22:19:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344779AbhLJWWx (ORCPT ); Fri, 10 Dec 2021 17:22:53 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:50058 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344697AbhLJWWh (ORCPT ); Fri, 10 Dec 2021 17:22:37 -0500 Message-ID: <20211210221813.740644351@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174737; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=lone/RHMXjlrVHw4SO3cyBPgNXO7SR/kjpngIvo8KXc=; b=pLlvWRgJJR/FozuPSZc/p3nSaSDVV9NbBY8rkEojQLKfzboZJPgEZ0QGJxryfOxb5vJXjW eBBPB65jIQk9+B1THMlYp0yGqF4rL2yHG62KFDRr14BUWKIF7M20mar760FwMkfrQzvRuP frt5N2PJ/xGqaTeQW8wTK+U8KkAFAKd4htcwQHlE2SrL5D3xqkdUSaNO3M42Mz14vtKiDQ 1TvZXJXtRgeoEBKeHM0ubuCWIcCUGNAV2hTbvSlYDalKpRKK8q1fk2cI4lSaaA29ziMele UAn5OHfmJCIJKFGNS3y69IG1bpP8yT509O8M0KnFnRnGtN/0Sp9b4mWVngiMzQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174737; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=lone/RHMXjlrVHw4SO3cyBPgNXO7SR/kjpngIvo8KXc=; b=fGZcqe6WqEa09T04QnEG0wFvQt+EXzqvmqvVYXhxq4JPl8Xl8WUjUPXH0+2Own5rPSRrGs rNikqidmCczP5lBg== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Greg Kroah-Hartman , Bjorn Helgaas , Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 09/35] PCI/MSI: Allocate MSI device data on first use References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:18:57 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner Allocate MSI device data on first use, i.e. when a PCI driver invokes one of the PCI/MSI enablement functions. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe Acked-by: Bjorn Helgaas --- drivers/pci/msi/msi.c | 20 +++++++++++++++----- 1 file changed, 15 insertions(+), 5 deletions(-) --- a/drivers/pci/msi/msi.c +++ b/drivers/pci/msi/msi.c @@ -900,10 +900,12 @@ static int __pci_enable_msi_range(struct /* deprecated, don't use */ int pci_enable_msi(struct pci_dev *dev) { - int rc = __pci_enable_msi_range(dev, 1, 1, NULL); - if (rc < 0) - return rc; - return 0; + int rc = msi_setup_device_data(&dev->dev); + + if (!rc) + rc = __pci_enable_msi_range(dev, 1, 1, NULL); + + return rc < 0 ? rc : 0; } EXPORT_SYMBOL(pci_enable_msi); @@ -958,7 +960,11 @@ static int __pci_enable_msix_range(struc int pci_enable_msix_range(struct pci_dev *dev, struct msix_entry *entries, int minvec, int maxvec) { - return __pci_enable_msix_range(dev, entries, minvec, maxvec, NULL, 0); + int ret = msi_setup_device_data(&dev->dev); + + if (!ret) + ret = __pci_enable_msix_range(dev, entries, minvec, maxvec, NULL, 0); + return ret; } EXPORT_SYMBOL(pci_enable_msix_range); @@ -985,8 +991,12 @@ int pci_alloc_irq_vectors_affinity(struc struct irq_affinity *affd) { struct irq_affinity msi_default_affd = {0}; + int ret = msi_setup_device_data(&dev->dev); int nvecs = -ENOSPC; + if (ret) + return ret; + if (flags & PCI_IRQ_AFFINITY) { if (!affd) affd = &msi_default_affd; From patchwork Fri Dec 10 22:18:58 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671097 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 756C6C433EF for ; Fri, 10 Dec 2021 22:19:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344807AbhLJWW5 (ORCPT ); Fri, 10 Dec 2021 17:22:57 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:49782 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344701AbhLJWWh (ORCPT ); Fri, 10 Dec 2021 17:22:37 -0500 Message-ID: <20211210221813.805529729@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174739; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=AIipdYHJdw47YEIR3ibDM4/EuKIZd0bBkHdL069vGOQ=; b=j1D2L9Q78IUwnll6n5rxMGVu2mITgI1fie6htejXwkZkBu5vKvBCoSC0hybtM8CIndzeKy 8FxbvyCsSWDO1Je5QzsKaI/JE7U3VHAG33NrckGM8Jh90EVfjx9LVyCBsKiWw/5ODWbyNU kojl0x/4/PVaVVmvviwmUOctKhNCi3chDZvokC+2bV6jT+/MGWHy2QTxSbgq5bJLTS0oc3 WunwiNoKKzPpL872PSd/7Fh8pFZgVkBASgKwd3jLaDi5pE0MyQTn5hNy8f1JZB6aEnheiK IXKzSIcv8qTnf/i+HWAfLXKhChF87Qp+8borfTOdx+L3rIKkbAniU7i2NTkEuA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174739; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=AIipdYHJdw47YEIR3ibDM4/EuKIZd0bBkHdL069vGOQ=; b=iR9CZQZxt9DwiDQaI1OMnpL3qc51lhNFwI0XGQkIVGuIAxEp7I6QmDjeueiB5NSx48DEzo NTxgjLao7vpldkAw== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Greg Kroah-Hartman , Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Bjorn Helgaas , Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 10/35] platform-msi: Allocate MSI device data on first use References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:18:58 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner Allocate the MSI device data on first invocation of the allocation function for platform MSI private data. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe --- drivers/base/platform-msi.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) --- a/drivers/base/platform-msi.c +++ b/drivers/base/platform-msi.c @@ -204,6 +204,8 @@ platform_msi_alloc_priv_data(struct devi irq_write_msi_msg_t write_msi_msg) { struct platform_msi_priv_data *datap; + int err; + /* * Limit the number of interrupts to 2048 per device. Should we * need to bump this up, DEV_ID_SHIFT should be adjusted @@ -218,6 +220,10 @@ platform_msi_alloc_priv_data(struct devi return ERR_PTR(-EINVAL); } + err = msi_setup_device_data(dev); + if (err) + return ERR_PTR(err); + /* Already had a helping of MSI? Greed... */ if (!list_empty(dev_to_msi_list(dev))) return ERR_PTR(-EBUSY); @@ -229,7 +235,7 @@ platform_msi_alloc_priv_data(struct devi datap->devid = ida_simple_get(&platform_msi_devid_ida, 0, 1 << DEV_ID_SHIFT, GFP_KERNEL); if (datap->devid < 0) { - int err = datap->devid; + err = datap->devid; kfree(datap); return ERR_PTR(err); } From patchwork Fri Dec 10 22:19:00 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671099 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 42275C4332F for ; Fri, 10 Dec 2021 22:19:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344803AbhLJWW4 (ORCPT ); Fri, 10 Dec 2021 17:22:56 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:50146 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344708AbhLJWWh (ORCPT ); Fri, 10 Dec 2021 17:22:37 -0500 Message-ID: <20211210221813.867985931@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174740; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=Y82OSyHV4tCeBzBC1rgQ8/N8FaTKISWwv/0ho8RVhuc=; b=2lSBrqL7tZdnQovckLcRFs+zUPITNEnJXtT+2t/rF3/6USo+oM3rVzWI5tmzBuF8v+fTql Y/WOe+crXeCISzmidHrjHzy1/dM/bLhEGF6X78s2KO5zgtoADPazF6hbJHmZc83RIDEZ+U S3NcKAlmaR7iXrlw0Wyt7MQ+5GzK/qAHQuSapmDPvqVfsc0Ygv0gok/KxyDWalxpEjwiij lOyBs1cQWG/UTyGJS+ODHvhGY9UGVMnlFBi1jRxRIBXX9aHbQyi5XmvGDAjr3NZ0MZ2nHe FZdyKYem/VTlhxHFL6icdY/Lr7wgeJS28HmRZY5DnE4kXSdKV/5/4F5fOjnGqw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174740; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=Y82OSyHV4tCeBzBC1rgQ8/N8FaTKISWwv/0ho8RVhuc=; b=AmDRzUTHc7jg0q3On78/vfF7TTqillkRcjofWpZD4PcjdOpOL/P4qxmwngleQjhYBtmCNP dxdvwJMQPD35dMCw== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Greg Kroah-Hartman , Stuart Yoder , Laurentiu Tudor , Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Bjorn Helgaas , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 11/35] bus: fsl-mc-msi: Allocate MSI device data on first use References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:19:00 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner Allocate the MSI device data on first invocation of the allocation function. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe Cc: Stuart Yoder Cc: Laurentiu Tudor --- drivers/bus/fsl-mc/fsl-mc-msi.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) --- a/drivers/bus/fsl-mc/fsl-mc-msi.c +++ b/drivers/bus/fsl-mc/fsl-mc-msi.c @@ -253,6 +253,14 @@ int fsl_mc_msi_domain_alloc_irqs(struct struct irq_domain *msi_domain; int error; + msi_domain = dev_get_msi_domain(dev); + if (!msi_domain) + return -EINVAL; + + error = msi_setup_device_data(dev); + if (error) + return error; + if (!list_empty(dev_to_msi_list(dev))) return -EINVAL; @@ -260,12 +268,6 @@ int fsl_mc_msi_domain_alloc_irqs(struct if (error < 0) return error; - msi_domain = dev_get_msi_domain(dev); - if (!msi_domain) { - error = -EINVAL; - goto cleanup_msi_descs; - } - /* * NOTE: Calling this function will trigger the invocation of the * its_fsl_mc_msi_prepare() callback From patchwork Fri Dec 10 22:19:01 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671101 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 4FFCEC43219 for ; Fri, 10 Dec 2021 22:19:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344825AbhLJWW7 (ORCPT ); Fri, 10 Dec 2021 17:22:59 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54574 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344712AbhLJWWk (ORCPT ); Fri, 10 Dec 2021 17:22:40 -0500 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CAC25C061353; Fri, 10 Dec 2021 14:19:03 -0800 (PST) Message-ID: <20211210221813.928842960@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174742; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=QlSfKOBDbr45C76IAsibYWGajwRrbHzT4oR8MTMol6A=; b=KpnJbo94PqafiDuB6cPP3ZG9y5TYJIE/BqRjDQ0OMl+P5klfpfRI7MUpyeTBzsKPc5S7kh 7p3bE4N4UClxyjVm4RQXGQBoUIlrUzhcVfp1xJrqCvGQODcFtaL8VLk9npWo2+QOK7o5tV b8D7JRJxi5hLB8IALGYUp00MiCX/ts+z5R21QKQl8nIuInb4hpSIHrSWUplo5op0d61N1y RIhRFc5a7u4PREveCUA5ts1KCb929sEyBGYy7dGh0DMVlgqH0fqqZWZBKpVtc2K6Bc9eC1 SblHiCzRFrs/1DG8/HPJfiG3/K2bxSPCdWYGZWDWrbuFk9vApUEdyDOw8IUSng== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174742; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=QlSfKOBDbr45C76IAsibYWGajwRrbHzT4oR8MTMol6A=; b=UgAZcMDwKNxLIdU8MxFmR1DNd/e2mpKEkmAj2dgcbgZL095ScwRy/HwPdGnfG/reYRKINs E5jUy+5K8dMLKvAQ== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Greg Kroah-Hartman , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Bjorn Helgaas , Stuart Yoder , Laurentiu Tudor , Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 12/35] soc: ti: ti_sci_inta_msi: Allocate MSI device data on first use References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:19:01 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner Allocate the MSI device data on first invocation of the allocation function. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe Cc: Nishanth Menon Cc: Tero Kristo Cc: Santosh Shilimkar Cc: linux-arm-kernel@lists.infradead.org Acked-by: Arnd Bergmann Acked-by: Nishanth Menon --- drivers/soc/ti/ti_sci_inta_msi.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/drivers/soc/ti/ti_sci_inta_msi.c +++ b/drivers/soc/ti/ti_sci_inta_msi.c @@ -120,6 +120,10 @@ int ti_sci_inta_msi_domain_alloc_irqs(st if (pdev->id < 0) return -ENODEV; + ret = msi_setup_device_data(dev); + if (ret) + return ret; + nvec = ti_sci_inta_msi_alloc_descs(dev, res); if (nvec <= 0) return nvec; From patchwork Fri Dec 10 22:19:03 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671147 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 A3DABC433F5 for ; Fri, 10 Dec 2021 22:21:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345406AbhLJWYq (ORCPT ); Fri, 10 Dec 2021 17:24:46 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:50238 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344713AbhLJWWl (ORCPT ); Fri, 10 Dec 2021 17:22:41 -0500 Message-ID: <20211210221813.988659194@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174744; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=oE2eGYCYBsqhTiqWwROCSzBN1PHvDBTxc4ApBbpWErQ=; b=Du2AaeyfQ64dP3dBs4P+iX/eFtTtuCyElkywg4oYr94298FnFHpAop9t86vUsn4VVyrVCl lGFyPgrvSs0Gr8kuj771Eh/3xQ8clx37P2uIDld9f7h+STIe4QjMB1lNIq8aFa6qmzcjnK ay+m0Xlfk66F93sm9gAN9zblzf0wZsVdVR/m5/BXpezRfWcYkI8p02Y74sGyJQfgJA30nA rqbyJQqYND31ug87CWMo7Va00A2e5kmACGXuAKhdEYFcuBoXlbaLCxWV3+5wzPYP6RyyPz PWzzT0WZAAnVAI5zp20wKtXbAm26pTRbjZaW7zp6VGBl5Re0rxuPRFo21zuz0g== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174744; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=oE2eGYCYBsqhTiqWwROCSzBN1PHvDBTxc4ApBbpWErQ=; b=CDqZUrLAr3/IbkCTIDZp0THg1iNwgAbMiICWCbxnRLGjU3FnBGAqbCSc84YSFhBleVyNIj Oj6FzJ0V6tLDbaAw== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Greg Kroah-Hartman , Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Bjorn Helgaas , Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 13/35] genirq/msi: Provide msi_device_populate/destroy_sysfs() References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:19:03 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner Add new allocation functions which can be activated by domain info flags. They store the groups pointer in struct msi_device_data. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe --- include/linux/msi.h | 4 ++++ kernel/irq/msi.c | 42 ++++++++++++++++++++++++++++++++++++++++-- 2 files changed, 44 insertions(+), 2 deletions(-) --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -56,6 +56,8 @@ struct irq_data; struct msi_desc; struct pci_dev; struct platform_msi_priv_data; +struct attribute_group; + void __get_cached_msi_msg(struct msi_desc *entry, struct msi_msg *msg); #ifdef CONFIG_GENERIC_MSI_IRQ void get_cached_msi_msg(unsigned int irq, struct msi_msg *msg); @@ -174,9 +176,11 @@ struct msi_desc { /** * msi_device_data - MSI per device data * @properties: MSI properties which are interesting to drivers + * @attrs: Pointer to the sysfs attribute group */ struct msi_device_data { unsigned long properties; + const struct attribute_group **attrs; }; int msi_setup_device_data(struct device *dev); --- a/kernel/irq/msi.c +++ b/kernel/irq/msi.c @@ -200,6 +200,20 @@ const struct attribute_group **msi_popul } /** + * msi_device_populate_sysfs - Populate msi_irqs sysfs entries for a device + * @dev: The device (PCI, platform etc) which will get sysfs entries + */ +int msi_device_populate_sysfs(struct device *dev) +{ + const struct attribute_group **group = msi_populate_sysfs(dev); + + if (IS_ERR(group)) + return PTR_ERR(group); + dev->msi.data->attrs = group; + return 0; +} + +/** * msi_destroy_sysfs - Destroy msi_irqs sysfs entries for devices * @dev: The device(PCI, platform etc) who will remove sysfs entries * @msi_irq_groups: attribute_group for device msi_irqs entries @@ -225,6 +239,17 @@ void msi_destroy_sysfs(struct device *de kfree(msi_irq_groups); } } + +/** + * msi_device_destroy_sysfs - Destroy msi_irqs sysfs entries for a device + * @dev: The device (PCI, platform etc) for which to remove + * sysfs entries + */ +void msi_device_destroy_sysfs(struct device *dev) +{ + msi_destroy_sysfs(dev, dev->msi.data->attrs); + dev->msi.data->attrs = NULL; +} #endif #ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN @@ -672,8 +697,19 @@ int msi_domain_alloc_irqs(struct irq_dom { struct msi_domain_info *info = domain->host_data; struct msi_domain_ops *ops = info->ops; + int ret; - return ops->domain_alloc_irqs(domain, dev, nvec); + ret = ops->domain_alloc_irqs(domain, dev, nvec); + if (ret) + return ret; + + if (!(info->flags & MSI_FLAG_DEV_SYSFS)) + return 0; + + ret = msi_device_populate_sysfs(dev); + if (ret) + msi_domain_free_irqs(domain, dev); + return ret; } void __msi_domain_free_irqs(struct irq_domain *domain, struct device *dev) @@ -712,7 +748,9 @@ void msi_domain_free_irqs(struct irq_dom struct msi_domain_info *info = domain->host_data; struct msi_domain_ops *ops = info->ops; - return ops->domain_free_irqs(domain, dev); + if (info->flags & MSI_FLAG_DEV_SYSFS) + msi_device_destroy_sysfs(dev); + ops->domain_free_irqs(domain, dev); } /** From patchwork Fri Dec 10 22:19:05 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671145 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 56F78C4332F for ; Fri, 10 Dec 2021 22:21:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344836AbhLJWYp (ORCPT ); Fri, 10 Dec 2021 17:24:45 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:50274 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344717AbhLJWWn (ORCPT ); Fri, 10 Dec 2021 17:22:43 -0500 Message-ID: <20211210221814.048612053@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174745; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=TChehWVkaCDXWslfOqt9SsdG5fg+7v6o6aA6KtRbeHM=; b=Z11uvvxgirAW72rICp0vfbanS84UF82Nhb6VQydo25+LJ6YqYAbpXkmM7xdJXeTdznCw1s erlLzvS3f8S8X3MqKG6FWkDbzvp7PQ01OSu3pmt6X/fqLdRuw+xf/tSng+pQE/QA3EVuJa JvpnsrGVQpSL/3nyMTJIBfAiiT+kUUJ3ssX8tU5sGnGPYjGGWGGM83LFKfBPbHkqRu8STR ghiqR/QIHyPv2LwcuKChQWwCEtBFQEHKUTL6+PT9gOax11YdzEWoTVht9qcQ8QqZBnEz6n JMmNdgKrS9iGoaCLMEB/xcBcfHGnMd7m6HmEh/Jj9qHhvvs3t2TqzewDPQIdXg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174745; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=TChehWVkaCDXWslfOqt9SsdG5fg+7v6o6aA6KtRbeHM=; b=KlfpjkCvcrQosgJ4ChgS7lGyZYuQ96QJI/yz5x/JhIyB7M0oc7AC8htzC3Lr6XT++gnAIE k/pOg57H/xU1JEBA== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Greg Kroah-Hartman , Bjorn Helgaas , Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 14/35] PCI/MSI: Let the irq code handle sysfs groups References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:19:05 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner Set the domain info flag which makes the core code handle sysfs groups and put an explicit invocation into the legacy code. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe Acked-by: Bjorn Helgaas --- drivers/pci/msi/irqdomain.c | 2 +- drivers/pci/msi/legacy.c | 6 +++++- drivers/pci/msi/msi.c | 23 ----------------------- include/linux/pci.h | 1 - 4 files changed, 6 insertions(+), 26 deletions(-) --- a/drivers/pci/msi/irqdomain.c +++ b/drivers/pci/msi/irqdomain.c @@ -159,7 +159,7 @@ struct irq_domain *pci_msi_create_irq_do if (info->flags & MSI_FLAG_USE_DEF_CHIP_OPS) pci_msi_domain_update_chip_ops(info); - info->flags |= MSI_FLAG_ACTIVATE_EARLY; + info->flags |= MSI_FLAG_ACTIVATE_EARLY | MSI_FLAG_DEV_SYSFS; if (IS_ENABLED(CONFIG_GENERIC_IRQ_RESERVATION_MODE)) info->flags |= MSI_FLAG_MUST_REACTIVATE; --- a/drivers/pci/msi/legacy.c +++ b/drivers/pci/msi/legacy.c @@ -70,10 +70,14 @@ int pci_msi_legacy_setup_msi_irqs(struct { int ret = arch_setup_msi_irqs(dev, nvec, type); - return pci_msi_setup_check_result(dev, type, ret); + ret = pci_msi_setup_check_result(dev, type, ret); + if (!ret) + ret = msi_device_populate_sysfs(&dev->dev); + return ret; } void pci_msi_legacy_teardown_msi_irqs(struct pci_dev *dev) { + msi_device_destroy_sysfs(&dev->dev); arch_teardown_msi_irqs(dev); } --- a/drivers/pci/msi/msi.c +++ b/drivers/pci/msi/msi.c @@ -233,11 +233,6 @@ static void free_msi_irqs(struct pci_dev for (i = 0; i < entry->nvec_used; i++) BUG_ON(irq_has_action(entry->irq + i)); - if (dev->msi_irq_groups) { - msi_destroy_sysfs(&dev->dev, dev->msi_irq_groups); - dev->msi_irq_groups = NULL; - } - pci_msi_teardown_msi_irqs(dev); list_for_each_entry_safe(entry, tmp, msi_list, list) { @@ -417,7 +412,6 @@ static int msi_verify_entries(struct pci static int msi_capability_init(struct pci_dev *dev, int nvec, struct irq_affinity *affd) { - const struct attribute_group **groups; struct msi_desc *entry; int ret; @@ -448,14 +442,6 @@ static int msi_capability_init(struct pc if (ret) goto err; - groups = msi_populate_sysfs(&dev->dev); - if (IS_ERR(groups)) { - ret = PTR_ERR(groups); - goto err; - } - - dev->msi_irq_groups = groups; - /* Set MSI enabled bits */ pci_intx_for_msi(dev, 0); pci_msi_set_enable(dev, 1); @@ -584,7 +570,6 @@ static void msix_mask_all(void __iomem * static int msix_capability_init(struct pci_dev *dev, struct msix_entry *entries, int nvec, struct irq_affinity *affd) { - const struct attribute_group **groups; void __iomem *base; int ret, tsize; u16 control; @@ -629,14 +614,6 @@ static int msix_capability_init(struct p msix_update_entries(dev, entries); - groups = msi_populate_sysfs(&dev->dev); - if (IS_ERR(groups)) { - ret = PTR_ERR(groups); - goto out_free; - } - - dev->msi_irq_groups = groups; - /* Disable INTX and unmask MSI-X */ pci_intx_for_msi(dev, 0); pci_msix_clear_and_set_ctrl(dev, PCI_MSIX_FLAGS_MASKALL, 0); --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -475,7 +475,6 @@ struct pci_dev { #ifdef CONFIG_PCI_MSI void __iomem *msix_base; raw_spinlock_t msi_lock; - const struct attribute_group **msi_irq_groups; #endif struct pci_vpd vpd; #ifdef CONFIG_PCIE_DPC From patchwork Fri Dec 10 22:19:06 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671143 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 511D4C433FE for ; Fri, 10 Dec 2021 22:21:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345134AbhLJWYo (ORCPT ); Fri, 10 Dec 2021 17:24:44 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54592 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344689AbhLJWWp (ORCPT ); Fri, 10 Dec 2021 17:22:45 -0500 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 80AB2C061746; Fri, 10 Dec 2021 14:19:08 -0800 (PST) Message-ID: <20211210221814.109408832@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174747; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=/T/lIugtjOnyOk0TOzZkPoZByXefF1LfjuDkNv8axwo=; b=2rQSESBNbhKDe4DIdH7ra10NH5N/JvzQQX+r3nrmLIoKqrr9kZeroIW0ldFyNTmeGJFloC ISsswuI9KpOlM49GqMXH1uDQDqjLlmAlQoCaIdP7ARZeSM4ju5lyK7EP81ugww1ZARaI0U gs8iQLYx9ZSJzL1t8RYEPf2MxfBf9s3ISeJpYwzJfbY1LP66IiQlEYyWZX7TWUuOhSSd+j QHxdKtWvMywJW5kM8KxC3ozfxn1n0BTwgqRspa0SYdoFjxiNskgkH3+l7apaPtovsFTCir /eDE+8+FyfScKQW4ZXlPNkEBA8QbEEVsBNZpySv69uV9FsqHgFVMgDuCMRqbdQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174747; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=/T/lIugtjOnyOk0TOzZkPoZByXefF1LfjuDkNv8axwo=; b=LGRIOOkKk9uMR58nBNuiyz1GmYXNgyyKXlS10xIQmOgbQ/Jkk7kTacYFZo0PvPLyf49QPl HjCMGi+rlPtSyrDA== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Greg Kroah-Hartman , Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Bjorn Helgaas , Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 15/35] platform-msi: Let the core code handle sysfs groups References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:19:06 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner Set the domain info flag and remove the local sysfs code. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe --- drivers/base/platform-msi.c | 11 +---------- 1 file changed, 1 insertion(+), 10 deletions(-) --- a/drivers/base/platform-msi.c +++ b/drivers/base/platform-msi.c @@ -23,7 +23,6 @@ struct platform_msi_priv_data { struct device *dev; void *host_data; - const struct attribute_group **msi_irq_groups; msi_alloc_info_t arg; irq_write_msi_msg_t write_msg; int devid; @@ -191,6 +190,7 @@ struct irq_domain *platform_msi_create_i platform_msi_update_dom_ops(info); if (info->flags & MSI_FLAG_USE_DEF_CHIP_OPS) platform_msi_update_chip_ops(info); + info->flags |= MSI_FLAG_DEV_SYSFS; domain = msi_create_irq_domain(fwnode, info, parent); if (domain) @@ -279,16 +279,8 @@ int platform_msi_domain_alloc_irqs(struc if (err) goto out_free_desc; - priv_data->msi_irq_groups = msi_populate_sysfs(dev); - if (IS_ERR(priv_data->msi_irq_groups)) { - err = PTR_ERR(priv_data->msi_irq_groups); - goto out_free_irqs; - } - return 0; -out_free_irqs: - msi_domain_free_irqs(dev->msi.domain, dev); out_free_desc: platform_msi_free_descs(dev, 0, nvec); out_free_priv_data: @@ -308,7 +300,6 @@ void platform_msi_domain_free_irqs(struc struct msi_desc *desc; desc = first_msi_entry(dev); - msi_destroy_sysfs(dev, desc->platform.msi_priv_data->msi_irq_groups); platform_msi_free_priv_data(desc->platform.msi_priv_data); } From patchwork Fri Dec 10 22:19:08 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671139 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 BA8B4C43219 for ; Fri, 10 Dec 2021 22:21:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345321AbhLJWYd (ORCPT ); Fri, 10 Dec 2021 17:24:33 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:49920 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344722AbhLJWWq (ORCPT ); Fri, 10 Dec 2021 17:22:46 -0500 Message-ID: <20211210221814.168362229@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174748; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=4+eiQosnG7JBR1uN0KlyRVrLtcLvBVvbMU+2SFmyB+o=; b=NSzn6eemNJ0eDNqaqfj0J4J5JGz7K56XnV9MyWe+zf1xqWyQujeFifj1x8v1csqVsCT35t QLOBO4/H7MoxkENiZW8/nmowd1Ubo+DfNDjfKXhl2o5H7ToEraGOyHrOB7FSOS+TO5BgjI biGY2JzKjzM5QxI7ropVsxtR2M+ZThlJOVZeCGTANbL7LC+fDH/Rtit9AAEpwdrpXdRGHR Blu5YEQSuMGWdbfsyAdjgnIWrgZEw9bO0+JWoNyUXqpHlcu5oisXl1DmuSUkUxyIqM/4ph QKgY3AFIQW1W1o9UcVgJRHzuXgUs4HLehTHcLW+ol5AfhGFocJkGtZD94o1FWw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174748; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=4+eiQosnG7JBR1uN0KlyRVrLtcLvBVvbMU+2SFmyB+o=; b=TTtSvTMz55N3aey6UgmLwPcn+vLffGKKd6RnWhYE43JcPUh8gDb277w95Yidb3WOxXOzkX 6CrbbZQt5BdYqYDA== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Greg Kroah-Hartman , Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Bjorn Helgaas , Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 16/35] genirq/msi: Remove the original sysfs interfaces References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:19:08 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner No more users. Refactor the core code accordingly and move the global interface under CONFIG_PCI_MSI_ARCH_FALLBACKS. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe --- include/linux/msi.h | 29 +++++++--------------------- kernel/irq/msi.c | 53 +++++++++++++++++++--------------------------------- 2 files changed, 28 insertions(+), 54 deletions(-) --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -246,26 +246,6 @@ void __pci_write_msi_msg(struct msi_desc void pci_msi_mask_irq(struct irq_data *data); void pci_msi_unmask_irq(struct irq_data *data); -#ifdef CONFIG_SYSFS -int msi_device_populate_sysfs(struct device *dev); -void msi_device_destroy_sysfs(struct device *dev); - -const struct attribute_group **msi_populate_sysfs(struct device *dev); -void msi_destroy_sysfs(struct device *dev, - const struct attribute_group **msi_irq_groups); -#else -static inline int msi_device_populate_sysfs(struct device *dev) { return 0; } -static inline void msi_device_destroy_sysfs(struct device *dev) { } - -static inline const struct attribute_group **msi_populate_sysfs(struct device *dev) -{ - return NULL; -} -static inline void msi_destroy_sysfs(struct device *dev, const struct attribute_group **msi_irq_groups) -{ -} -#endif - /* * The arch hooks to setup up msi irqs. Default functions are implemented * as weak symbols so that they /can/ be overriden by architecture specific @@ -279,7 +259,14 @@ int arch_setup_msi_irq(struct pci_dev *d void arch_teardown_msi_irq(unsigned int irq); int arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type); void arch_teardown_msi_irqs(struct pci_dev *dev); -#endif +#ifdef CONFIG_SYSFS +int msi_device_populate_sysfs(struct device *dev); +void msi_device_destroy_sysfs(struct device *dev); +#else /* CONFIG_SYSFS */ +static inline int msi_device_populate_sysfs(struct device *dev) { return 0; } +static inline void msi_device_destroy_sysfs(struct device *dev) { } +#endif /* !CONFIG_SYSFS */ +#endif /* CONFIG_PCI_MSI_ARCH_FALLBACKS */ /* * The restore hook is still available even for fully irq domain based --- a/kernel/irq/msi.c +++ b/kernel/irq/msi.c @@ -118,12 +118,8 @@ static ssize_t msi_mode_show(struct devi /** * msi_populate_sysfs - Populate msi_irqs sysfs entries for devices * @dev: The device(PCI, platform etc) who will get sysfs entries - * - * Return attribute_group ** so that specific bus MSI can save it to - * somewhere during initilizing msi irqs. If devices has no MSI irq, - * return NULL; if it fails to populate sysfs, return ERR_PTR */ -const struct attribute_group **msi_populate_sysfs(struct device *dev) +static const struct attribute_group **msi_populate_sysfs(struct device *dev) { const struct attribute_group **msi_irq_groups; struct attribute **msi_attrs, *msi_attr; @@ -214,41 +210,32 @@ int msi_device_populate_sysfs(struct dev } /** - * msi_destroy_sysfs - Destroy msi_irqs sysfs entries for devices - * @dev: The device(PCI, platform etc) who will remove sysfs entries - * @msi_irq_groups: attribute_group for device msi_irqs entries - */ -void msi_destroy_sysfs(struct device *dev, const struct attribute_group **msi_irq_groups) -{ - struct device_attribute *dev_attr; - struct attribute **msi_attrs; - int count = 0; - - if (msi_irq_groups) { - sysfs_remove_groups(&dev->kobj, msi_irq_groups); - msi_attrs = msi_irq_groups[0]->attrs; - while (msi_attrs[count]) { - dev_attr = container_of(msi_attrs[count], - struct device_attribute, attr); - kfree(dev_attr->attr.name); - kfree(dev_attr); - ++count; - } - kfree(msi_attrs); - kfree(msi_irq_groups[0]); - kfree(msi_irq_groups); - } -} - -/** * msi_device_destroy_sysfs - Destroy msi_irqs sysfs entries for a device * @dev: The device (PCI, platform etc) for which to remove * sysfs entries */ void msi_device_destroy_sysfs(struct device *dev) { - msi_destroy_sysfs(dev, dev->msi.data->attrs); + const struct attribute_group **msi_irq_groups = dev->msi.data->attrs; + struct device_attribute *dev_attr; + struct attribute **msi_attrs; + int count = 0; + dev->msi.data->attrs = NULL; + if (!msi_irq_groups) + return; + + sysfs_remove_groups(&dev->kobj, msi_irq_groups); + msi_attrs = msi_irq_groups[0]->attrs; + while (msi_attrs[count]) { + dev_attr = container_of(msi_attrs[count], struct device_attribute, attr); + kfree(dev_attr->attr.name); + kfree(dev_attr); + ++count; + } + kfree(msi_attrs); + kfree(msi_irq_groups[0]); + kfree(msi_irq_groups); } #endif From patchwork Fri Dec 10 22:19:09 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671103 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 7E40BC4167B for ; Fri, 10 Dec 2021 22:19:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344838AbhLJWXA (ORCPT ); Fri, 10 Dec 2021 17:23:00 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:49962 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344721AbhLJWWr (ORCPT ); Fri, 10 Dec 2021 17:22:47 -0500 Message-ID: <20211210221814.228706214@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174750; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=FY9MZMWsXlGRWGpD4j0ndw3rUmZHrgdx/qnJrYogpAU=; b=crLRwjpnFmL9vMNtYINDNn4+8OCsKUZw52CQiHwIVumoubywFORkfBtVSxdUwDOiyGUIps SdPbjYumbRS7Dk0Tgi6Y/2GEaoHyNf3xM1ST45hNpPG8I++VRH/Xfyu5M6k0jaiAe1DD/j kSWc3pDKfWBD5VYIOD6/b3OT2/vGnA+ynRtfJErlglQ56u3evX1lNm6SY5e5ESQpnC06kx rO0rwjrjup3yPCpzY0hbURoWkLwMbwYM4SDBwawx9Oq3kMe6iQYCe3zJnMa+fJfxJQperJ mHwXN3+qpbrRWvV5MauCMj8j3vkrSrndxScpReORwflYKATV8Hy8vzh3NpTffg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174750; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=FY9MZMWsXlGRWGpD4j0ndw3rUmZHrgdx/qnJrYogpAU=; b=KyrVeJ0G9MOl8qF99M67WEg99zQMMH+5HSv5GJnHZovMto8RmqfPLbkbG09zVhDJ2hpCNg 8MnOzpWo1zDzWXBQ== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Greg Kroah-Hartman , Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Bjorn Helgaas , Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 17/35] platform-msi: Rename functions and clarify comments References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:19:09 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner It's hard to distinguish what platform_msi_domain_alloc() and platform_msi_domain_alloc_irqs() are about. Make the distinction more explicit and add comments which explain the use cases properly. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe --- drivers/base/platform-msi.c | 36 +++++++++++++++++++++--------------- drivers/irqchip/irq-mbigen.c | 4 ++-- drivers/irqchip/irq-mvebu-icu.c | 6 +++--- include/linux/msi.h | 8 ++++---- 4 files changed, 30 insertions(+), 24 deletions(-) --- a/drivers/base/platform-msi.c +++ b/drivers/base/platform-msi.c @@ -313,17 +313,18 @@ EXPORT_SYMBOL_GPL(platform_msi_domain_fr * a platform-msi domain * @domain: The platform-msi domain * - * Returns the private data provided when calling - * platform_msi_create_device_domain. + * Return: The private data provided when calling + * platform_msi_create_device_domain(). */ void *platform_msi_get_host_data(struct irq_domain *domain) { struct platform_msi_priv_data *data = domain->host_data; + return data->host_data; } /** - * __platform_msi_create_device_domain - Create a platform-msi domain + * __platform_msi_create_device_domain - Create a platform-msi device domain * * @dev: The device generating the MSIs * @nvec: The number of MSIs that need to be allocated @@ -332,7 +333,11 @@ void *platform_msi_get_host_data(struct * @ops: The hierarchy domain operations to use * @host_data: Private data associated to this domain * - * Returns an irqdomain for @nvec interrupts + * Return: An irqdomain for @nvec interrupts on success, NULL in case of error. + * + * This is for interrupt domains which stack on a platform-msi domain + * created by platform_msi_create_irq_domain(). @dev->msi.domain points to + * that platform-msi domain which is the parent for the new domain. */ struct irq_domain * __platform_msi_create_device_domain(struct device *dev, @@ -372,18 +377,19 @@ struct irq_domain * } /** - * platform_msi_domain_free - Free interrupts associated with a platform-msi - * domain + * platform_msi_device_domain_free - Free interrupts associated with a platform-msi + * device domain * - * @domain: The platform-msi domain + * @domain: The platform-msi device domain * @virq: The base irq from which to perform the free operation * @nvec: How many interrupts to free from @virq */ -void platform_msi_domain_free(struct irq_domain *domain, unsigned int virq, - unsigned int nvec) +void platform_msi_device_domain_free(struct irq_domain *domain, unsigned int virq, + unsigned int nvec) { struct platform_msi_priv_data *data = domain->host_data; struct msi_desc *desc, *tmp; + for_each_msi_entry_safe(desc, tmp, data->dev) { if (WARN_ON(!desc->irq || desc->nvec_used != 1)) return; @@ -397,10 +403,10 @@ void platform_msi_domain_free(struct irq } /** - * platform_msi_domain_alloc - Allocate interrupts associated with - * a platform-msi domain + * platform_msi_device_domain_alloc - Allocate interrupts associated with + * a platform-msi device domain * - * @domain: The platform-msi domain + * @domain: The platform-msi device domain * @virq: The base irq from which to perform the allocate operation * @nr_irqs: How many interrupts to free from @virq * @@ -408,8 +414,8 @@ void platform_msi_domain_free(struct irq * with irq_domain_mutex held (which can only be done as part of a * top-level interrupt allocation). */ -int platform_msi_domain_alloc(struct irq_domain *domain, unsigned int virq, - unsigned int nr_irqs) +int platform_msi_device_domain_alloc(struct irq_domain *domain, unsigned int virq, + unsigned int nr_irqs) { struct platform_msi_priv_data *data = domain->host_data; int err; @@ -421,7 +427,7 @@ int platform_msi_domain_alloc(struct irq err = msi_domain_populate_irqs(domain->parent, data->dev, virq, nr_irqs, &data->arg); if (err) - platform_msi_domain_free(domain, virq, nr_irqs); + platform_msi_device_domain_free(domain, virq, nr_irqs); return err; } --- a/drivers/irqchip/irq-mbigen.c +++ b/drivers/irqchip/irq-mbigen.c @@ -207,7 +207,7 @@ static int mbigen_irq_domain_alloc(struc if (err) return err; - err = platform_msi_domain_alloc(domain, virq, nr_irqs); + err = platform_msi_device_domain_alloc(domain, virq, nr_irqs); if (err) return err; @@ -223,7 +223,7 @@ static int mbigen_irq_domain_alloc(struc static void mbigen_irq_domain_free(struct irq_domain *domain, unsigned int virq, unsigned int nr_irqs) { - platform_msi_domain_free(domain, virq, nr_irqs); + platform_msi_device_domain_free(domain, virq, nr_irqs); } static const struct irq_domain_ops mbigen_domain_ops = { --- a/drivers/irqchip/irq-mvebu-icu.c +++ b/drivers/irqchip/irq-mvebu-icu.c @@ -221,7 +221,7 @@ mvebu_icu_irq_domain_alloc(struct irq_do icu_irqd->icu_group = msi_data->subset_data->icu_group; icu_irqd->icu = icu; - err = platform_msi_domain_alloc(domain, virq, nr_irqs); + err = platform_msi_device_domain_alloc(domain, virq, nr_irqs); if (err) { dev_err(icu->dev, "failed to allocate ICU interrupt in parent domain\n"); goto free_irqd; @@ -245,7 +245,7 @@ mvebu_icu_irq_domain_alloc(struct irq_do return 0; free_msi: - platform_msi_domain_free(domain, virq, nr_irqs); + platform_msi_device_domain_free(domain, virq, nr_irqs); free_irqd: kfree(icu_irqd); return err; @@ -260,7 +260,7 @@ mvebu_icu_irq_domain_free(struct irq_dom kfree(icu_irqd); - platform_msi_domain_free(domain, virq, nr_irqs); + platform_msi_device_domain_free(domain, virq, nr_irqs); } static const struct irq_domain_ops mvebu_icu_domain_ops = { --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -434,10 +434,10 @@ struct irq_domain * #define platform_msi_create_device_tree_domain(dev, nvec, write, ops, data) \ __platform_msi_create_device_domain(dev, nvec, true, write, ops, data) -int platform_msi_domain_alloc(struct irq_domain *domain, unsigned int virq, - unsigned int nr_irqs); -void platform_msi_domain_free(struct irq_domain *domain, unsigned int virq, - unsigned int nvec); +int platform_msi_device_domain_alloc(struct irq_domain *domain, unsigned int virq, + unsigned int nr_irqs); +void platform_msi_device_domain_free(struct irq_domain *domain, unsigned int virq, + unsigned int nvec); void *platform_msi_get_host_data(struct irq_domain *domain); #endif /* CONFIG_GENERIC_MSI_IRQ_DOMAIN */ From patchwork Fri Dec 10 22:19:11 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671141 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 A5C0DC433FE for ; Fri, 10 Dec 2021 22:20:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344683AbhLJWYc (ORCPT ); Fri, 10 Dec 2021 17:24:32 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:50058 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344744AbhLJWWs (ORCPT ); Fri, 10 Dec 2021 17:22:48 -0500 Message-ID: <20211210221814.287680528@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174751; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=zIZczyRlH4Mx4fB5mmlODqe9FKNOKEFU5ncWnwPgL4o=; b=A7TX/LnwMZ3WbXEnRoPrDP/wLd2iphxwXGgFB2xNDcix6PjdERSNAqWZP3cDL+ul1e+OgS XZwjDctIfCLuV18Dm1hv3qTKEaY6pfv6/JrJwTE0Zi/Mq6iBPgIO6QtvtT1kN6nSLPvNPW 0u0s7/PZpPkZNxO2RTqbZAkwSRF23scy5J5cf67INwsZCQZA1X62o97PiKxMfxj6o8/GxZ aO9H2WxcI08XgbYFKtYRHKYr0lWyDUFfBt68wukumRk/J7k3llF+aqTWeB78Uo5s/n8eAj eO0F5f71EAQkycZW2+2rOZR7xc5Gp2SnvBytgZ4S05qo6bkqWTDwARQoLAvwQA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174751; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=zIZczyRlH4Mx4fB5mmlODqe9FKNOKEFU5ncWnwPgL4o=; b=/snRPAepbgN6BXoxpR9Y/cwG/pUn2U+BFbd6X9S/kPABlfdlYLuradGw7bcnIwrFcdQcFh R0NHGOxeEpedSOCw== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Greg Kroah-Hartman , Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Bjorn Helgaas , Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 18/35] platform-msi: Store platform private data pointer in msi_device_data References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:19:11 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner Storing the platform private data in a MSI descriptor is sloppy at best. The data belongs to the device and not to the descriptor. Add a pointer to struct msi_device_data and store the pointer there. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe --- drivers/base/platform-msi.c | 79 +++++++++++++++++--------------------------- include/linux/msi.h | 4 +- 2 files changed, 34 insertions(+), 49 deletions(-) --- a/drivers/base/platform-msi.c +++ b/drivers/base/platform-msi.c @@ -38,9 +38,7 @@ static DEFINE_IDA(platform_msi_devid_ida */ static irq_hw_number_t platform_msi_calc_hwirq(struct msi_desc *desc) { - u32 devid; - - devid = desc->platform.msi_priv_data->devid; + u32 devid = desc->dev->msi.data->platform_data->devid; return (devid << (32 - DEV_ID_SHIFT)) | desc->platform.msi_index; } @@ -85,11 +83,8 @@ static void platform_msi_update_dom_ops( static void platform_msi_write_msg(struct irq_data *data, struct msi_msg *msg) { struct msi_desc *desc = irq_data_get_msi_desc(data); - struct platform_msi_priv_data *priv_data; - - priv_data = desc->platform.msi_priv_data; - priv_data->write_msg(desc, msg); + desc->dev->msi.data->platform_data->write_msg(desc, msg); } static void platform_msi_update_chip_ops(struct msi_domain_info *info) @@ -126,9 +121,7 @@ static void platform_msi_free_descs(stru } static int platform_msi_alloc_descs_with_irq(struct device *dev, int virq, - int nvec, - struct platform_msi_priv_data *data) - + int nvec) { struct msi_desc *desc; int i, base = 0; @@ -144,7 +137,6 @@ static int platform_msi_alloc_descs_with if (!desc) break; - desc->platform.msi_priv_data = data; desc->platform.msi_index = base + i; desc->irq = virq ? virq + i : 0; @@ -161,11 +153,9 @@ static int platform_msi_alloc_descs_with return 0; } -static int platform_msi_alloc_descs(struct device *dev, int nvec, - struct platform_msi_priv_data *data) - +static int platform_msi_alloc_descs(struct device *dev, int nvec) { - return platform_msi_alloc_descs_with_irq(dev, 0, nvec, data); + return platform_msi_alloc_descs_with_irq(dev, 0, nvec); } /** @@ -199,9 +189,8 @@ struct irq_domain *platform_msi_create_i return domain; } -static struct platform_msi_priv_data * -platform_msi_alloc_priv_data(struct device *dev, unsigned int nvec, - irq_write_msi_msg_t write_msi_msg) +static int platform_msi_alloc_priv_data(struct device *dev, unsigned int nvec, + irq_write_msi_msg_t write_msi_msg) { struct platform_msi_priv_data *datap; int err; @@ -213,41 +202,44 @@ platform_msi_alloc_priv_data(struct devi * capable devices). */ if (!dev->msi.domain || !write_msi_msg || !nvec || nvec > MAX_DEV_MSIS) - return ERR_PTR(-EINVAL); + return -EINVAL; if (dev->msi.domain->bus_token != DOMAIN_BUS_PLATFORM_MSI) { dev_err(dev, "Incompatible msi_domain, giving up\n"); - return ERR_PTR(-EINVAL); + return -EINVAL; } err = msi_setup_device_data(dev); if (err) - return ERR_PTR(err); + return err; - /* Already had a helping of MSI? Greed... */ - if (!list_empty(dev_to_msi_list(dev))) - return ERR_PTR(-EBUSY); + /* Already initialized? */ + if (dev->msi.data->platform_data) + return -EBUSY; datap = kzalloc(sizeof(*datap), GFP_KERNEL); if (!datap) - return ERR_PTR(-ENOMEM); + return -ENOMEM; datap->devid = ida_simple_get(&platform_msi_devid_ida, 0, 1 << DEV_ID_SHIFT, GFP_KERNEL); if (datap->devid < 0) { err = datap->devid; kfree(datap); - return ERR_PTR(err); + return err; } datap->write_msg = write_msi_msg; datap->dev = dev; - - return datap; + dev->msi.data->platform_data = datap; + return 0; } -static void platform_msi_free_priv_data(struct platform_msi_priv_data *data) +static void platform_msi_free_priv_data(struct device *dev) { + struct platform_msi_priv_data *data = dev->msi.data->platform_data; + + dev->msi.data->platform_data = NULL; ida_simple_remove(&platform_msi_devid_ida, data->devid); kfree(data); } @@ -264,14 +256,13 @@ static void platform_msi_free_priv_data( int platform_msi_domain_alloc_irqs(struct device *dev, unsigned int nvec, irq_write_msi_msg_t write_msi_msg) { - struct platform_msi_priv_data *priv_data; int err; - priv_data = platform_msi_alloc_priv_data(dev, nvec, write_msi_msg); - if (IS_ERR(priv_data)) - return PTR_ERR(priv_data); + err = platform_msi_alloc_priv_data(dev, nvec, write_msi_msg); + if (err) + return err; - err = platform_msi_alloc_descs(dev, nvec, priv_data); + err = platform_msi_alloc_descs(dev, nvec); if (err) goto out_free_priv_data; @@ -284,8 +275,7 @@ int platform_msi_domain_alloc_irqs(struc out_free_desc: platform_msi_free_descs(dev, 0, nvec); out_free_priv_data: - platform_msi_free_priv_data(priv_data); - + platform_msi_free_priv_data(dev); return err; } EXPORT_SYMBOL_GPL(platform_msi_domain_alloc_irqs); @@ -296,15 +286,9 @@ EXPORT_SYMBOL_GPL(platform_msi_domain_al */ void platform_msi_domain_free_irqs(struct device *dev) { - if (!list_empty(dev_to_msi_list(dev))) { - struct msi_desc *desc; - - desc = first_msi_entry(dev); - platform_msi_free_priv_data(desc->platform.msi_priv_data); - } - msi_domain_free_irqs(dev->msi.domain, dev); platform_msi_free_descs(dev, 0, MAX_DEV_MSIS); + platform_msi_free_priv_data(dev); } EXPORT_SYMBOL_GPL(platform_msi_domain_free_irqs); @@ -351,10 +335,11 @@ struct irq_domain * struct irq_domain *domain; int err; - data = platform_msi_alloc_priv_data(dev, nvec, write_msi_msg); - if (IS_ERR(data)) + err = platform_msi_alloc_priv_data(dev, nvec, write_msi_msg); + if (err) return NULL; + data = dev->msi.data->platform_data; data->host_data = host_data; domain = irq_domain_create_hierarchy(dev->msi.domain, 0, is_tree ? 0 : nvec, @@ -372,7 +357,7 @@ struct irq_domain * free_domain: irq_domain_remove(domain); free_priv: - platform_msi_free_priv_data(data); + platform_msi_free_priv_data(dev); return NULL; } @@ -420,7 +405,7 @@ int platform_msi_device_domain_alloc(str struct platform_msi_priv_data *data = domain->host_data; int err; - err = platform_msi_alloc_descs_with_irq(data->dev, virq, nr_irqs, data); + err = platform_msi_alloc_descs_with_irq(data->dev, virq, nr_irqs); if (err) return err; --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -108,11 +108,9 @@ struct pci_msi_desc { /** * platform_msi_desc - Platform device specific msi descriptor data - * @msi_priv_data: Pointer to platform private data * @msi_index: The index of the MSI descriptor for multi MSI */ struct platform_msi_desc { - struct platform_msi_priv_data *msi_priv_data; u16 msi_index; }; @@ -177,10 +175,12 @@ struct msi_desc { * msi_device_data - MSI per device data * @properties: MSI properties which are interesting to drivers * @attrs: Pointer to the sysfs attribute group + * @platform_data: Platform-MSI specific data */ struct msi_device_data { unsigned long properties; const struct attribute_group **attrs; + struct platform_msi_priv_data *platform_data; }; int msi_setup_device_data(struct device *dev); From patchwork Fri Dec 10 22:19:12 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671137 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 553ACC433EF for ; Fri, 10 Dec 2021 22:20:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345318AbhLJWYb (ORCPT ); Fri, 10 Dec 2021 17:24:31 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:50238 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344748AbhLJWWt (ORCPT ); Fri, 10 Dec 2021 17:22:49 -0500 Message-ID: <20211210221814.350967317@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174753; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=OiOpnus/jgb4RvtQJgk+f5PDfD1lWJHYgR9yAXQeu2I=; b=GqNHND5vQFfn8YzyhGofKZeaI5YQY13nUcIcEAnApVoYxde41u4gvkSMQaoDkklgWgL6Zk wHK3PJ2ZfWbYxMme7FaxL39snJIf0wZL5rHbzsTnJnEy6rOrqOZLuFMip60nKRVfr+lj/W BHXCzw1n2FEVbVuPbkWSyTdPAv+7+HaOx4FixB2V+JT0YpatDIYYDU4l+QGR4JfC9ST/QQ ngLKa+qq7x59ird4H3MCqjWV28aq/HayJ/tjTE/75JamD316Ym4S0uX+2lXQI9IZaj0SWh AKr8ZMfxglw+5yokSrUK5V9ferJK273x0+5I6KMvkrEpEnp1TSxk47w6CwmNQA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174753; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=OiOpnus/jgb4RvtQJgk+f5PDfD1lWJHYgR9yAXQeu2I=; b=HkiV41WymK0ae47Xnth9tBZ2L/9zjtZHSoLnNC/O478xU6oHNx8HK4b2wxQ3RzFd2wVYMW SUUWu6Lvp/P2vTDQ== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Greg Kroah-Hartman , Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Bjorn Helgaas , Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 19/35] genirq/msi: Consolidate MSI descriptor data References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:19:12 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner All non PCI/MSI usage variants have data structures in struct msi_desc with only one member: xxx_index. PCI/MSI has a entry_nr member. Add a common msi_index member to struct msi_desc so all implementations can share it which allows further consolidation. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe --- include/linux/msi.h | 2 ++ 1 file changed, 2 insertions(+) --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -143,6 +143,7 @@ struct ti_sci_inta_msi_desc { * address or data changes * @write_msi_msg_data: Data parameter for the callback. * + * @msi_index: Index of the msi descriptor * @pci: [PCI] PCI speficic msi descriptor data * @platform: [platform] Platform device specific msi descriptor data * @fsl_mc: [fsl-mc] FSL MC device specific msi descriptor data @@ -163,6 +164,7 @@ struct msi_desc { void (*write_msi_msg)(struct msi_desc *entry, void *data); void *write_msi_msg_data; + u16 msi_index; union { struct pci_msi_desc pci; struct platform_msi_desc platform; From patchwork Fri Dec 10 22:19:14 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671135 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 689FFC433EF for ; Fri, 10 Dec 2021 22:20:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344756AbhLJWYa (ORCPT ); Fri, 10 Dec 2021 17:24:30 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:50544 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344768AbhLJWWw (ORCPT ); Fri, 10 Dec 2021 17:22:52 -0500 Message-ID: <20211210221814.413638645@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174755; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=BJ+aqs3JuUQKsO3BctVmpLd9eqalaNFkDGZVaSssIBc=; b=k/FA321vEFQTINsiDiktMyGPAyhH0HOHkZCclSezrG6bfDxcSWJw0pc09HhkATrVcTQ6ri hnJjId+gly+fkrlDn4DuEhi3WKCGyjqiHTOcCpB52ZRAbAlk8habGeq2T/0GeNVFzgwAUX gBYdqBwe05ZWKm3yEV/1OxDlUqa0cigus0DWgFdbJPJ3vmGOLYue6+Yu0syUb0lGxp8xak nCGKDUWTtT6OhnSQVJaIIJbUTVpVhD0RKT+dIybCA5QzlH4gkNx1aOI/cQQwg1kIu/Xa68 3n73qNCpmi67D9qbeVEYTKMdvPJ/PoUE6K25W1WCB/0MML/YeRi7L9UO6zR/BQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174755; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=BJ+aqs3JuUQKsO3BctVmpLd9eqalaNFkDGZVaSssIBc=; b=NFgEqEdfXbDDPrssrqajhRF703gPYTQxCVwQC4iBxAZurkrpMLpoBqiXkuwb3ZKXaHsc93 9WV1M1CndmpxrRBA== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Greg Kroah-Hartman , Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Bjorn Helgaas , Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 20/35] platform-msi: Use msi_desc::msi_index References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:19:14 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner Use the common msi_index member and get rid of the pointless wrapper struct. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe --- drivers/base/platform-msi.c | 10 +++++----- drivers/dma/qcom/hidma.c | 4 ++-- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 4 ++-- drivers/mailbox/bcm-flexrm-mailbox.c | 4 ++-- include/linux/msi.h | 10 ---------- 5 files changed, 11 insertions(+), 21 deletions(-) --- a/drivers/base/platform-msi.c +++ b/drivers/base/platform-msi.c @@ -40,7 +40,7 @@ static irq_hw_number_t platform_msi_calc { u32 devid = desc->dev->msi.data->platform_data->devid; - return (devid << (32 - DEV_ID_SHIFT)) | desc->platform.msi_index; + return (devid << (32 - DEV_ID_SHIFT)) | desc->msi_index; } static void platform_msi_set_desc(msi_alloc_info_t *arg, struct msi_desc *desc) @@ -112,8 +112,8 @@ static void platform_msi_free_descs(stru struct msi_desc *desc, *tmp; list_for_each_entry_safe(desc, tmp, dev_to_msi_list(dev), list) { - if (desc->platform.msi_index >= base && - desc->platform.msi_index < (base + nvec)) { + if (desc->msi_index >= base && + desc->msi_index < (base + nvec)) { list_del(&desc->list); free_msi_entry(desc); } @@ -129,7 +129,7 @@ static int platform_msi_alloc_descs_with if (!list_empty(dev_to_msi_list(dev))) { desc = list_last_entry(dev_to_msi_list(dev), struct msi_desc, list); - base = desc->platform.msi_index + 1; + base = desc->msi_index + 1; } for (i = 0; i < nvec; i++) { @@ -137,7 +137,7 @@ static int platform_msi_alloc_descs_with if (!desc) break; - desc->platform.msi_index = base + i; + desc->msi_index = base + i; desc->irq = virq ? virq + i : 0; list_add_tail(&desc->list, dev_to_msi_list(dev)); --- a/drivers/dma/qcom/hidma.c +++ b/drivers/dma/qcom/hidma.c @@ -666,7 +666,7 @@ static void hidma_write_msi_msg(struct m struct device *dev = msi_desc_to_dev(desc); struct hidma_dev *dmadev = dev_get_drvdata(dev); - if (!desc->platform.msi_index) { + if (!desc->msi_index) { writel(msg->address_lo, dmadev->dev_evca + 0x118); writel(msg->address_hi, dmadev->dev_evca + 0x11C); writel(msg->data, dmadev->dev_evca + 0x120); @@ -702,7 +702,7 @@ static int hidma_request_msi(struct hidm return rc; for_each_msi_entry(desc, &pdev->dev) { - if (!desc->platform.msi_index) + if (!desc->msi_index) dmadev->msi_virqbase = desc->irq; rc = devm_request_irq(&pdev->dev, desc->irq, --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -3142,7 +3142,7 @@ static void arm_smmu_write_msi_msg(struc phys_addr_t doorbell; struct device *dev = msi_desc_to_dev(desc); struct arm_smmu_device *smmu = dev_get_drvdata(dev); - phys_addr_t *cfg = arm_smmu_msi_cfg[desc->platform.msi_index]; + phys_addr_t *cfg = arm_smmu_msi_cfg[desc->msi_index]; doorbell = (((u64)msg->address_hi) << 32) | msg->address_lo; doorbell &= MSI_CFG0_ADDR_MASK; @@ -3183,7 +3183,7 @@ static void arm_smmu_setup_msis(struct a } for_each_msi_entry(desc, dev) { - switch (desc->platform.msi_index) { + switch (desc->msi_index) { case EVTQ_MSI_INDEX: smmu->evtq.q.irq = desc->irq; break; --- a/drivers/mailbox/bcm-flexrm-mailbox.c +++ b/drivers/mailbox/bcm-flexrm-mailbox.c @@ -1484,7 +1484,7 @@ static void flexrm_mbox_msi_write(struct { struct device *dev = msi_desc_to_dev(desc); struct flexrm_mbox *mbox = dev_get_drvdata(dev); - struct flexrm_ring *ring = &mbox->rings[desc->platform.msi_index]; + struct flexrm_ring *ring = &mbox->rings[desc->msi_index]; /* Configure per-Ring MSI registers */ writel_relaxed(msg->address_lo, ring->regs + RING_MSI_ADDR_LS); @@ -1609,7 +1609,7 @@ static int flexrm_mbox_probe(struct plat /* Save alloced IRQ numbers for each ring */ for_each_msi_entry(desc, dev) { - ring = &mbox->rings[desc->platform.msi_index]; + ring = &mbox->rings[desc->msi_index]; ring->irq = desc->irq; } --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -107,14 +107,6 @@ struct pci_msi_desc { }; /** - * platform_msi_desc - Platform device specific msi descriptor data - * @msi_index: The index of the MSI descriptor for multi MSI - */ -struct platform_msi_desc { - u16 msi_index; -}; - -/** * fsl_mc_msi_desc - FSL-MC device specific msi descriptor data * @msi_index: The index of the MSI descriptor */ @@ -145,7 +137,6 @@ struct ti_sci_inta_msi_desc { * * @msi_index: Index of the msi descriptor * @pci: [PCI] PCI speficic msi descriptor data - * @platform: [platform] Platform device specific msi descriptor data * @fsl_mc: [fsl-mc] FSL MC device specific msi descriptor data * @inta: [INTA] TISCI based INTA specific msi descriptor data */ @@ -167,7 +158,6 @@ struct msi_desc { u16 msi_index; union { struct pci_msi_desc pci; - struct platform_msi_desc platform; struct fsl_mc_msi_desc fsl_mc; struct ti_sci_inta_msi_desc inta; }; From patchwork Fri Dec 10 22:19:15 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671133 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 C5E16C433F5 for ; Fri, 10 Dec 2021 22:20:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344778AbhLJWYP (ORCPT ); Fri, 10 Dec 2021 17:24:15 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:50604 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344775AbhLJWWx (ORCPT ); Fri, 10 Dec 2021 17:22:53 -0500 Message-ID: <20211210221814.477386185@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174756; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=dh2RlNUmAwoYjA9eTFF60aCLEohqcxOki/Se5jBNtvk=; b=q/pBw8LlYFFFU88TeeIJvEppe38MJYUOaegEt/6+kHbknlFz4hqC28pzkrcpz+rdZBH7Ct cpIao/Ojr+R6AhAU4S+g3dU9sxTrWInVNawKyo/5M0hDBcPOzYmXMGvoNYb/E/BRYK8AbE Jd5fBAThZII1tD00/tV2qPSz7ri4loVPKk5zdok3KSWYmtyvpbXduRDfB9WvyMuyy2kSKS YBUFmgpMtUuwAt8ClNM4DiGIjFsZPR5MwdIozMRpGbXOjm768Nd5uNtLBB7XFbQCr9VMYN v44+6amAej3NWNewWJB+7MJ66zDGM2lzzpqGH6JFmH6f765owfcCx2bXaseS0A== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174756; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=dh2RlNUmAwoYjA9eTFF60aCLEohqcxOki/Se5jBNtvk=; b=6IVODbVD2gQWqrMzoxlyFeT/FyksUxmc33xNNKlBBReHQFt0yfS0alvLSk8dq213HdtOYU U81rzfIpvPjBIhBA== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Greg Kroah-Hartman , Stuart Yoder , Laurentiu Tudor , Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Bjorn Helgaas , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 21/35] bus: fsl-mc-msi: Use msi_desc::msi_index References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:19:15 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner Use the common msi_index member and get rid of the pointless wrapper struct. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe Cc: Stuart Yoder Cc: Laurentiu Tudor --- drivers/bus/fsl-mc/fsl-mc-allocator.c | 2 +- drivers/bus/fsl-mc/fsl-mc-msi.c | 6 +++--- include/linux/msi.h | 10 ---------- 3 files changed, 4 insertions(+), 14 deletions(-) --- a/drivers/bus/fsl-mc/fsl-mc-allocator.c +++ b/drivers/bus/fsl-mc/fsl-mc-allocator.c @@ -393,7 +393,7 @@ int fsl_mc_populate_irq_pool(struct fsl_ } for_each_msi_entry(msi_desc, &mc_bus_dev->dev) { - mc_dev_irq = &irq_resources[msi_desc->fsl_mc.msi_index]; + mc_dev_irq = &irq_resources[msi_desc->msi_index]; mc_dev_irq->msi_desc = msi_desc; mc_dev_irq->resource.id = msi_desc->irq; } --- a/drivers/bus/fsl-mc/fsl-mc-msi.c +++ b/drivers/bus/fsl-mc/fsl-mc-msi.c @@ -29,7 +29,7 @@ static irq_hw_number_t fsl_mc_domain_cal * Make the base hwirq value for ICID*10000 so it is readable * as a decimal value in /proc/interrupts. */ - return (irq_hw_number_t)(desc->fsl_mc.msi_index + (dev->icid * 10000)); + return (irq_hw_number_t)(desc->msi_index + (dev->icid * 10000)); } static void fsl_mc_msi_set_desc(msi_alloc_info_t *arg, @@ -122,7 +122,7 @@ static void fsl_mc_msi_write_msg(struct struct fsl_mc_device *mc_bus_dev = to_fsl_mc_device(msi_desc->dev); struct fsl_mc_bus *mc_bus = to_fsl_mc_bus(mc_bus_dev); struct fsl_mc_device_irq *mc_dev_irq = - &mc_bus->irq_resources[msi_desc->fsl_mc.msi_index]; + &mc_bus->irq_resources[msi_desc->msi_index]; msi_desc->msg = *msg; @@ -235,7 +235,7 @@ static int fsl_mc_msi_alloc_descs(struct goto cleanup_msi_descs; } - msi_desc->fsl_mc.msi_index = i; + msi_desc->msi_index = i; INIT_LIST_HEAD(&msi_desc->list); list_add_tail(&msi_desc->list, dev_to_msi_list(dev)); } --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -107,14 +107,6 @@ struct pci_msi_desc { }; /** - * fsl_mc_msi_desc - FSL-MC device specific msi descriptor data - * @msi_index: The index of the MSI descriptor - */ -struct fsl_mc_msi_desc { - u16 msi_index; -}; - -/** * ti_sci_inta_msi_desc - TISCI based INTA specific msi descriptor data * @dev_index: TISCI device index */ @@ -137,7 +129,6 @@ struct ti_sci_inta_msi_desc { * * @msi_index: Index of the msi descriptor * @pci: [PCI] PCI speficic msi descriptor data - * @fsl_mc: [fsl-mc] FSL MC device specific msi descriptor data * @inta: [INTA] TISCI based INTA specific msi descriptor data */ struct msi_desc { @@ -158,7 +149,6 @@ struct msi_desc { u16 msi_index; union { struct pci_msi_desc pci; - struct fsl_mc_msi_desc fsl_mc; struct ti_sci_inta_msi_desc inta; }; }; From patchwork Fri Dec 10 22:19:17 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671131 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 8B9EDC433EF for ; Fri, 10 Dec 2021 22:20:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345066AbhLJWYP (ORCPT ); Fri, 10 Dec 2021 17:24:15 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:50628 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344782AbhLJWWz (ORCPT ); Fri, 10 Dec 2021 17:22:55 -0500 Message-ID: <20211210221814.540704224@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174758; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=cN4mOxuY7Okg1M+dlth8hthNIkx8L2iGPoOR+S+w+us=; b=M1tVjk6yFiMKXjz8z9rtje5UmZy1dz0aDWkX81TwRD2eOEBGMMOd4HQQbrePJuaH6+UMRX J8wzTS/tTtQdxXfph9XF969YPmB4Y9GtozG9J4einOdMXxZg3dQjYwxFmbcAJrBgo1kHEs PbCl/WQUGX4eNaP010LwWx1i2cL5DMz8+7ISg/FfzlYFm65Wyqm9T6dyF1sj5FioiD3VX+ 3iHK8Lyh2m73JkSmCPZRxgV4hdZQVdwIcMAKKbwxgrB6ifMNHS/T+pXh+isLvhLB4AByf+ ekRKlayeNgYLRRrhODOIIyqUXowDIwjE4RArqa+pNuDaWoQqOOLWRwNBHeCs1A== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174758; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=cN4mOxuY7Okg1M+dlth8hthNIkx8L2iGPoOR+S+w+us=; b=zq6e6vgOvTOBpv83YKIBY7AfdQR37XhK0GNGPBYF4MooJaZ9kRON5kPCk5FJ8SFotmH1vC 0TG1lB8qM5PsBWAg== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Greg Kroah-Hartman , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Bjorn Helgaas , Stuart Yoder , Laurentiu Tudor , Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 22/35] soc: ti: ti_sci_inta_msi: Use msi_desc::msi_index References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:19:17 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner Use the common msi_index member and get rid of the pointless wrapper struct. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe Cc: Nishanth Menon Cc: Tero Kristo Cc: Santosh Shilimkar Cc: Thomas Gleixner Cc: linux-arm-kernel@lists.infradead.org Acked-by: Nishanth Menon --- drivers/irqchip/irq-ti-sci-inta.c | 2 +- drivers/soc/ti/ti_sci_inta_msi.c | 6 +++--- include/linux/msi.h | 16 ++-------------- 3 files changed, 6 insertions(+), 18 deletions(-) --- a/drivers/irqchip/irq-ti-sci-inta.c +++ b/drivers/irqchip/irq-ti-sci-inta.c @@ -595,7 +595,7 @@ static void ti_sci_inta_msi_set_desc(msi struct platform_device *pdev = to_platform_device(desc->dev); arg->desc = desc; - arg->hwirq = TO_HWIRQ(pdev->id, desc->inta.dev_index); + arg->hwirq = TO_HWIRQ(pdev->id, desc->msi_index); } static struct msi_domain_ops ti_sci_inta_msi_ops = { --- a/drivers/soc/ti/ti_sci_inta_msi.c +++ b/drivers/soc/ti/ti_sci_inta_msi.c @@ -84,7 +84,7 @@ static int ti_sci_inta_msi_alloc_descs(s return -ENOMEM; } - msi_desc->inta.dev_index = res->desc[set].start + i; + msi_desc->msi_index = res->desc[set].start + i; INIT_LIST_HEAD(&msi_desc->list); list_add_tail(&msi_desc->list, dev_to_msi_list(dev)); count++; @@ -96,7 +96,7 @@ static int ti_sci_inta_msi_alloc_descs(s return -ENOMEM; } - msi_desc->inta.dev_index = res->desc[set].start_sec + i; + msi_desc->msi_index = res->desc[set].start_sec + i; INIT_LIST_HEAD(&msi_desc->list); list_add_tail(&msi_desc->list, dev_to_msi_list(dev)); count++; @@ -154,7 +154,7 @@ unsigned int ti_sci_inta_msi_get_virq(st struct msi_desc *desc; for_each_msi_entry(desc, dev) - if (desc->inta.dev_index == dev_index) + if (desc->msi_index == dev_index) return desc->irq; return -ENODEV; --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -107,14 +107,6 @@ struct pci_msi_desc { }; /** - * ti_sci_inta_msi_desc - TISCI based INTA specific msi descriptor data - * @dev_index: TISCI device index - */ -struct ti_sci_inta_msi_desc { - u16 dev_index; -}; - -/** * struct msi_desc - Descriptor structure for MSI based interrupts * @list: List head for management * @irq: The base interrupt number @@ -128,8 +120,7 @@ struct ti_sci_inta_msi_desc { * @write_msi_msg_data: Data parameter for the callback. * * @msi_index: Index of the msi descriptor - * @pci: [PCI] PCI speficic msi descriptor data - * @inta: [INTA] TISCI based INTA specific msi descriptor data + * @pci: PCI specific msi descriptor data */ struct msi_desc { /* Shared device/bus type independent data */ @@ -147,10 +138,7 @@ struct msi_desc { void *write_msi_msg_data; u16 msi_index; - union { - struct pci_msi_desc pci; - struct ti_sci_inta_msi_desc inta; - }; + struct pci_msi_desc pci; }; /** From patchwork Fri Dec 10 22:19:18 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671129 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 27F6AC4332F for ; Fri, 10 Dec 2021 22:20:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240945AbhLJWYN (ORCPT ); Fri, 10 Dec 2021 17:24:13 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:50696 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344792AbhLJWW4 (ORCPT ); Fri, 10 Dec 2021 17:22:56 -0500 Message-ID: <20211210221814.602911509@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174759; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=b+8XtuxyybZ0KA3VgHyfihDMNTV0zUMbTk9/Irfc6hY=; b=gtlARjzibFYuz9U6kOioIdZU3H2gGpSp0kPlWLZ+kd24cAed+DeClKuntlG4JsCk8zY07y q4OBakPfcKBb37uTsVpdl+kZVXjGOM+WiX4QdL4/u+lA1Y9y4dKrhkgw6Uh/7GO9oYoIeQ hBP/MraULd3ZVo1Z1K+epp4dalnjedctH041vEGdy4nfhXCKfiR+ROymaThUnkMKuz3NNm +JxVPoN3XjujZ5ewmGt2GsfcPEocK7u3J2vLaJA/0r9VgzNM5Jdeq19scuH1VS8ZuEjJ+m oWuWlGsHLJmOx4SsTtznS8VRLvxx0mMiiyfP6T1q4JfNvKbl2zPiXclTsVXprA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174759; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=b+8XtuxyybZ0KA3VgHyfihDMNTV0zUMbTk9/Irfc6hY=; b=KjbXc7grgijN+0eh8P50UqVENbOnRsxgSHL8UOCByDa/XkHCvECRNHYwFOKg0KvZdAMfCs a3nFb07yNOEsfEDA== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Greg Kroah-Hartman , Bjorn Helgaas , Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 23/35] PCI/MSI: Use msi_desc::msi_index References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:19:18 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner The usage of msi_desc::pci::entry_nr is confusing at best. It's the index into the MSI[X] descriptor table. Use msi_desc::msi_index which is shared between all MSI incarnations instead of having a PCI specific storage for no value. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe Acked-by: Bjorn Helgaas --- arch/powerpc/platforms/pseries/msi.c | 4 ++-- arch/x86/pci/xen.c | 2 +- drivers/pci/msi/irqdomain.c | 2 +- drivers/pci/msi/msi.c | 20 ++++++++------------ drivers/pci/xen-pcifront.c | 2 +- include/linux/msi.h | 2 -- 6 files changed, 13 insertions(+), 19 deletions(-) --- a/arch/powerpc/platforms/pseries/msi.c +++ b/arch/powerpc/platforms/pseries/msi.c @@ -332,7 +332,7 @@ static int check_msix_entries(struct pci expected = 0; for_each_pci_msi_entry(entry, pdev) { - if (entry->pci.msi_attrib.entry_nr != expected) { + if (entry->msi_index != expected) { pr_debug("rtas_msi: bad MSI-X entries.\n"); return -EINVAL; } @@ -579,7 +579,7 @@ static int pseries_irq_domain_alloc(stru int hwirq; int i, ret; - hwirq = rtas_query_irq_number(pci_get_pdn(pdev), desc->pci.msi_attrib.entry_nr); + hwirq = rtas_query_irq_number(pci_get_pdn(pdev), desc->msi_index); if (hwirq < 0) { dev_err(&pdev->dev, "Failed to query HW IRQ: %d\n", hwirq); return hwirq; --- a/arch/x86/pci/xen.c +++ b/arch/x86/pci/xen.c @@ -306,7 +306,7 @@ static int xen_initdom_setup_msi_irqs(st return -EINVAL; map_irq.table_base = pci_resource_start(dev, bir); - map_irq.entry_nr = msidesc->pci.msi_attrib.entry_nr; + map_irq.entry_nr = msidesc->msi_index; } ret = -EINVAL; --- a/drivers/pci/msi/irqdomain.c +++ b/drivers/pci/msi/irqdomain.c @@ -57,7 +57,7 @@ static irq_hw_number_t pci_msi_domain_ca { struct pci_dev *dev = msi_desc_to_pci_dev(desc); - return (irq_hw_number_t)desc->pci.msi_attrib.entry_nr | + return (irq_hw_number_t)desc->msi_index | pci_dev_id(dev) << 11 | (pci_domain_nr(dev->bus) & 0xFFFFFFFF) << 27; } --- a/drivers/pci/msi/msi.c +++ b/drivers/pci/msi/msi.c @@ -44,7 +44,7 @@ static inline void pci_msi_unmask(struct static inline void __iomem *pci_msix_desc_addr(struct msi_desc *desc) { - return desc->pci.mask_base + desc->pci.msi_attrib.entry_nr * PCI_MSIX_ENTRY_SIZE; + return desc->pci.mask_base + desc->msi_index * PCI_MSIX_ENTRY_SIZE; } /* @@ -356,13 +356,10 @@ msi_setup_entry(struct pci_dev *dev, int if (dev->dev_flags & PCI_DEV_FLAGS_HAS_MSI_MASKING) control |= PCI_MSI_FLAGS_MASKBIT; - entry->pci.msi_attrib.is_msix = 0; - entry->pci.msi_attrib.is_64 = !!(control & PCI_MSI_FLAGS_64BIT); - entry->pci.msi_attrib.is_virtual = 0; - entry->pci.msi_attrib.entry_nr = 0; + entry->pci.msi_attrib.is_64 = !!(control & PCI_MSI_FLAGS_64BIT); entry->pci.msi_attrib.can_mask = !pci_msi_ignore_mask && !!(control & PCI_MSI_FLAGS_MASKBIT); - entry->pci.msi_attrib.default_irq = dev->irq; /* Save IOAPIC IRQ */ + entry->pci.msi_attrib.default_irq = dev->irq; entry->pci.msi_attrib.multi_cap = (control & PCI_MSI_FLAGS_QMASK) >> 1; entry->pci.msi_attrib.multiple = ilog2(__roundup_pow_of_two(nvec)); @@ -504,12 +501,11 @@ static int msix_setup_entries(struct pci entry->pci.msi_attrib.is_64 = 1; if (entries) - entry->pci.msi_attrib.entry_nr = entries[i].entry; + entry->msi_index = entries[i].entry; else - entry->pci.msi_attrib.entry_nr = i; + entry->msi_index = i; - entry->pci.msi_attrib.is_virtual = - entry->pci.msi_attrib.entry_nr >= vec_count; + entry->pci.msi_attrib.is_virtual = entry->msi_index >= vec_count; entry->pci.msi_attrib.can_mask = !pci_msi_ignore_mask && !entry->pci.msi_attrib.is_virtual; @@ -1045,7 +1041,7 @@ int pci_irq_vector(struct pci_dev *dev, struct msi_desc *entry; for_each_pci_msi_entry(entry, dev) { - if (entry->pci.msi_attrib.entry_nr == nr) + if (entry->msi_index == nr) return entry->irq; } WARN_ON_ONCE(1); @@ -1084,7 +1080,7 @@ const struct cpumask *pci_irq_get_affini struct msi_desc *entry; for_each_pci_msi_entry(entry, dev) { - if (entry->pci.msi_attrib.entry_nr == nr) + if (entry->msi_index == nr) return &entry->affinity->mask; } WARN_ON_ONCE(1); --- a/drivers/pci/xen-pcifront.c +++ b/drivers/pci/xen-pcifront.c @@ -263,7 +263,7 @@ static int pci_frontend_enable_msix(stru i = 0; for_each_pci_msi_entry(entry, dev) { - op.msix_entries[i].entry = entry->pci.msi_attrib.entry_nr; + op.msix_entries[i].entry = entry->msi_index; /* Vector is useless at this point. */ op.msix_entries[i].vector = -1; i++; --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -80,7 +80,6 @@ typedef void (*irq_write_msi_msg_t)(stru * @multi_cap: [PCI MSI/X] log2 num of messages supported * @can_mask: [PCI MSI/X] Masking supported? * @is_64: [PCI MSI/X] Address size: 0=32bit 1=64bit - * @entry_nr: [PCI MSI/X] Entry which is described by this descriptor * @default_irq:[PCI MSI/X] The default pre-assigned non-MSI irq * @mask_pos: [PCI MSI] Mask register position * @mask_base: [PCI MSI-X] Mask register base address @@ -97,7 +96,6 @@ struct pci_msi_desc { u8 can_mask : 1; u8 is_64 : 1; u8 is_virtual : 1; - u16 entry_nr; unsigned default_irq; } msi_attrib; union { From patchwork Fri Dec 10 22:19:20 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671127 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 69919C433FE for ; Fri, 10 Dec 2021 22:20:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344804AbhLJWYH (ORCPT ); Fri, 10 Dec 2021 17:24:07 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:50738 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344684AbhLJWW5 (ORCPT ); Fri, 10 Dec 2021 17:22:57 -0500 Message-ID: <20211210221814.662401116@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174761; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=B95vILF4f96+HtIHGYc7a4tJjZ074d989NcBwfF9o/k=; b=fIOwaXb6T7YmYbzCNcuFWouRC2zGGXVRlsUgpqqFOIV0PyrJoOnT+aoyDMVKNK2A6krAZI XSQeEqbaRaAtK4VvrlqFro0SB1vhErnfxWhzQgwr+qsDk36wQ+eFWHO7jp23E3M3puDi35 953o11ODU0TeOVEvTYbYoheZAqmksy26rdvmfI7PBx5P15pbca7UNafWBkDO+hECvHFdj9 Yev9a5GN8EarusWwFqVi4o0AwKm0r+2eGINSSeQt7Q5FKkUK03tvPM0NomazmAYBA/cAga y3ObQUixyXi6+XAFUJSYrz1VSQAlbkSi94tipek580Cs/VN2H2S5HEWAnMSsvw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174761; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=B95vILF4f96+HtIHGYc7a4tJjZ074d989NcBwfF9o/k=; b=Te6lNiwtavfKOApR2IhAxEwWLE9W8Bb3G/p8b6YTrFg+8nzwR06UFSXrmPjpS92tCkMg5/ Nkw6+1agFZw6IeBg== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Greg Kroah-Hartman , Bjorn Helgaas , Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 24/35] PCI/MSI: Provide MSI_FLAG_MSIX_CONTIGUOUS References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:19:20 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner Provide a domain info flag which makes the core code check for a contiguous MSI-X index on allocation. That's simpler than checking it at some other domain callback in architecture code. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe Acked-by: Bjorn Helgaas --- drivers/pci/msi/irqdomain.c | 16 ++++++++++++++-- include/linux/msi.h | 2 ++ 2 files changed, 16 insertions(+), 2 deletions(-) --- a/drivers/pci/msi/irqdomain.c +++ b/drivers/pci/msi/irqdomain.c @@ -89,9 +89,21 @@ static int pci_msi_domain_check_cap(stru if (pci_msi_desc_is_multi_msi(desc) && !(info->flags & MSI_FLAG_MULTI_PCI_MSI)) return 1; - else if (desc->pci.msi_attrib.is_msix && !(info->flags & MSI_FLAG_PCI_MSIX)) - return -ENOTSUPP; + if (desc->pci.msi_attrib.is_msix) { + if (!(info->flags & MSI_FLAG_PCI_MSIX)) + return -ENOTSUPP; + + if (info->flags & MSI_FLAG_MSIX_CONTIGUOUS) { + unsigned int idx = 0; + + /* Check for gaps in the entry indices */ + for_each_msi_entry(desc, dev) { + if (desc->msi_index != idx++) + return -ENOTSUPP; + } + } + } return 0; } --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -361,6 +361,8 @@ enum { MSI_FLAG_LEVEL_CAPABLE = (1 << 6), /* Populate sysfs on alloc() and destroy it on free() */ MSI_FLAG_DEV_SYSFS = (1 << 7), + /* MSI-X entries must be contiguous */ + MSI_FLAG_MSIX_CONTIGUOUS = (1 << 8), }; int msi_domain_set_affinity(struct irq_data *data, const struct cpumask *mask, From patchwork Fri Dec 10 22:19:22 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671107 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 144B7C433F5 for ; Fri, 10 Dec 2021 22:19:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344978AbhLJWXQ (ORCPT ); Fri, 10 Dec 2021 17:23:16 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:50058 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344818AbhLJWW7 (ORCPT ); Fri, 10 Dec 2021 17:22:59 -0500 Message-ID: <20211210221814.720998720@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174762; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: references:references; bh=Y/E/KkLUpd9rNPfDA/zqSwkvkNwtu0uG/q7moMbC6t8=; b=Q1loFyA5IlQ3aytzC+w8agXNpV+7qVzWLLt7gFAxD1uipRckq4A63ZDFlRGCLHiD1WXBCo w0KWYnAWbGzEZr/4SWaOTeEwWKw1e6hopGrKVSpqVp8bGWUD/cv86yFjYBjUcnEWdvHY3D rgx+tAv/GXM3Dr6QCsae7PjKT265v4cKhrWCbRIUXyRZCJMPv6JLxGPJrWrAjiLYk/CNRO jYnVtNkau0JyAHELKfNmrLSzDJz7ygURO1IyC5xhunTeJMWngrOu1RR1+HfWrbASO2qYnr hwv0O1X8uqWQklUq1DIP73U0V3zNDPJE2TlYjxuEWKoOXEF+hR4iuFZes26TAQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174762; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: references:references; bh=Y/E/KkLUpd9rNPfDA/zqSwkvkNwtu0uG/q7moMbC6t8=; b=6NW6+PSI7SpPEo0Bw1CpABwRumr4UbWMvCiNUQ1PxVZXboG1DTempdK99XRytho0lXor9m bf7Awa33UAb9FuCg== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Greg Kroah-Hartman , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Bjorn Helgaas , Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 25/35] powerpc/pseries/msi: Let core code check for contiguous entries References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:19:22 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner Set the domain info flag and remove the check. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Cc: Michael Ellerman Cc: Benjamin Herrenschmidt Cc: "Cédric Le Goater" Cc: linuxppc-dev@lists.ozlabs.org Reviewed-by: Jason Gunthorpe --- V2: Remove it completely - Cedric --- arch/powerpc/platforms/pseries/msi.c | 33 ++++++++------------------------- 1 file changed, 8 insertions(+), 25 deletions(-) --- a/arch/powerpc/platforms/pseries/msi.c +++ b/arch/powerpc/platforms/pseries/msi.c @@ -321,27 +321,6 @@ static int msi_quota_for_device(struct p return request; } -static int check_msix_entries(struct pci_dev *pdev) -{ - struct msi_desc *entry; - int expected; - - /* There's no way for us to express to firmware that we want - * a discontiguous, or non-zero based, range of MSI-X entries. - * So we must reject such requests. */ - - expected = 0; - for_each_pci_msi_entry(entry, pdev) { - if (entry->msi_index != expected) { - pr_debug("rtas_msi: bad MSI-X entries.\n"); - return -EINVAL; - } - expected++; - } - - return 0; -} - static void rtas_hack_32bit_msi_gen2(struct pci_dev *pdev) { u32 addr_hi, addr_lo; @@ -380,9 +359,6 @@ static int rtas_prepare_msi_irqs(struct if (quota && quota < nvec) return quota; - if (type == PCI_CAP_ID_MSIX && check_msix_entries(pdev)) - return -EINVAL; - /* * Firmware currently refuse any non power of two allocation * so we round up if the quota will allow it. @@ -529,9 +505,16 @@ static struct irq_chip pseries_pci_msi_i .irq_write_msi_msg = pseries_msi_write_msg, }; + +/* + * Set MSI_FLAG_MSIX_CONTIGUOUS as there is no way to express to + * firmware to request a discontiguous or non-zero based range of + * MSI-X entries. Core code will reject such setup attempts. + */ static struct msi_domain_info pseries_msi_domain_info = { .flags = (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS | - MSI_FLAG_MULTI_PCI_MSI | MSI_FLAG_PCI_MSIX), + MSI_FLAG_MULTI_PCI_MSI | MSI_FLAG_PCI_MSIX | + MSI_FLAG_MSIX_CONTIGUOUS), .ops = &pseries_pci_msi_domain_ops, .chip = &pseries_pci_msi_irq_chip, }; From patchwork Fri Dec 10 22:19:23 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671105 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 E5B19C4332F for ; Fri, 10 Dec 2021 22:19:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344971AbhLJWXO (ORCPT ); Fri, 10 Dec 2021 17:23:14 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:50238 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344830AbhLJWXA (ORCPT ); Fri, 10 Dec 2021 17:23:00 -0500 Message-ID: <20211210221814.780824745@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174764; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=ZEIc+hYHtGZ+R8Y42PTVzHWVlXMSBVtNMJGsH152424=; b=ZnOdjYsyWWWPA45DX/sEP1Hz7/N21g6u4UZdn8c1qyQRQwctj1a4i6BAp20kDLoVrj6D2s MbD+ZTo1q9CByKhQo2XRoN4WdhbqsWP8IhvQmO5n4QjDLb4bQeMj+tjt/r7iv7ulqjYgof F4ISSFlfQwvH4mj7rI3COb7fhYfIaOuZZwt6hdi7/i1KgHhxe1miuwBC9ALPHJWSgBGtAq Hm9GThVygPLyQUzGEUG99ih95uj7Ifn3w+/L6+ojF2urlcLuEKAYpMauAHf1+Mdai5rTl4 6N8IRoupzCe+vvFuCq6MovD0Voro2Z7OmtZqPzl66KvGCxnWY1NqHMI0nV1/OA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174764; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=ZEIc+hYHtGZ+R8Y42PTVzHWVlXMSBVtNMJGsH152424=; b=IxahGrtxRlopXsWUYNpTNdhCUtnqonpOEodZ3IuQBz/DFc/KxGCheju7XzPFrWnx3hqpKg Kcg6g5cSFSWCRQCA== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Greg Kroah-Hartman , Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Bjorn Helgaas , Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 26/35] genirq/msi: Provide interface to retrieve Linux interrupt number References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:19:23 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner This allows drivers to retrieve the Linux interrupt number instead of fiddling with MSI descriptors. msi_get_virq() returns the Linux interrupt number or 0 in case that there is no entry for the given MSI index. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe --- V2: Simplify the implementation and let PCI deal with the PCI specialities - Marc --- include/linux/msi.h | 2 ++ kernel/irq/msi.c | 36 ++++++++++++++++++++++++++++++++++++ 2 files changed, 38 insertions(+) --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -153,6 +153,8 @@ struct msi_device_data { int msi_setup_device_data(struct device *dev); +unsigned int msi_get_virq(struct device *dev, unsigned int index); + /* Helpers to hide struct msi_desc implementation details */ #define msi_desc_to_dev(desc) ((desc)->dev) #define dev_to_msi_list(dev) (&(dev)->msi_list) --- a/kernel/irq/msi.c +++ b/kernel/irq/msi.c @@ -105,6 +105,42 @@ int msi_setup_device_data(struct device return 0; } +/** + * msi_get_virq - Return Linux interrupt number of a MSI interrupt + * @dev: Device to operate on + * @index: MSI interrupt index to look for (0-based) + * + * Return: The Linux interrupt number on success (> 0), 0 if not found + */ +unsigned int msi_get_virq(struct device *dev, unsigned int index) +{ + struct msi_desc *desc; + bool pcimsi; + + if (!dev->msi.data) + return 0; + + pcimsi = dev_is_pci(dev) ? to_pci_dev(dev)->msi_enabled : false; + + for_each_msi_entry(desc, dev) { + /* PCI-MSI has only one descriptor for multiple interrupts. */ + if (pcimsi) { + if (desc->irq && index < desc->nvec_used) + return desc->irq + index; + break; + } + + /* + * PCI-MSIX and platform MSI use a descriptor per + * interrupt. + */ + if (desc->msi_index == index) + return desc->irq; + } + return 0; +} +EXPORT_SYMBOL_GPL(msi_get_virq); + #ifdef CONFIG_SYSFS static ssize_t msi_mode_show(struct device *dev, struct device_attribute *attr, char *buf) From patchwork Fri Dec 10 22:19:25 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671109 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 00A12C43219 for ; Fri, 10 Dec 2021 22:19:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344849AbhLJWXS (ORCPT ); Fri, 10 Dec 2021 17:23:18 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:50544 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344848AbhLJWXC (ORCPT ); Fri, 10 Dec 2021 17:23:02 -0500 Message-ID: <20211210221814.841243231@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174765; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=ja9fbkTMChiYC+RHKTG35XzzVDvmaXMgaMrb6WY3XeQ=; b=z6iPEnfVAgwlW1Qbnq1nCFWwA6bNapErKquzAi3fk6aQqeO9o4U4iwQjv+EebRfvLnwN8n e63ahKnp4QuQIaqzvffdsynbWgeJGaK4CvS+c+uMgRBceXI7VODqOegmQe3L/CvghbDhuO LN91tjaF0S12KexgZs8cR5/oZ2rSgoo7wgdZrtLgJvkHGW3yStep1fiuvR7g41IWJCZNnu Rdmmg97HfnTylsxqpzgAYVzZaMeXvWfNQQ5rvNFbwpEWwzgtXnQ4/DZTiIX/XN8OvdQ75p NdflsNWb6DcWnXBSu0XhAKL30N7MQvosu7Eo61JG6PvjMi8bgOFzC5eVez11kQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174765; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=ja9fbkTMChiYC+RHKTG35XzzVDvmaXMgaMrb6WY3XeQ=; b=ClMHqdNEhBqMOb1sVFaSm0KweWWAEZJCgeJM/hGJMp5ROj9kquAcj3PJfKxxeM3i7GOxBS FHUfoC+s+JX7GLDA== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Greg Kroah-Hartman , Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Bjorn Helgaas , Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 27/35] PCI/MSI: Use __msi_get_virq() in pci_get_vector() References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:19:25 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner Use msi_get_vector() and handle the return value to be compatible. No functional change intended. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe --- V2: Handle the INTx case directly instead of trying to be overly smart - Marc --- drivers/pci/msi/msi.c | 25 +++++-------------------- 1 file changed, 5 insertions(+), 20 deletions(-) --- a/drivers/pci/msi/msi.c +++ b/drivers/pci/msi/msi.c @@ -1037,28 +1037,13 @@ EXPORT_SYMBOL(pci_free_irq_vectors); */ int pci_irq_vector(struct pci_dev *dev, unsigned int nr) { - if (dev->msix_enabled) { - struct msi_desc *entry; + unsigned int irq; - for_each_pci_msi_entry(entry, dev) { - if (entry->msi_index == nr) - return entry->irq; - } - WARN_ON_ONCE(1); - return -EINVAL; - } + if (!dev->msi_enabled && !dev->msix_enabled) + return !nr ? dev->irq : -EINVAL; - if (dev->msi_enabled) { - struct msi_desc *entry = first_pci_msi_entry(dev); - - if (WARN_ON_ONCE(nr >= entry->nvec_used)) - return -EINVAL; - } else { - if (WARN_ON_ONCE(nr > 0)) - return -EINVAL; - } - - return dev->irq + nr; + irq = msi_get_virq(&dev->dev, nr); + return irq ? irq : -EINVAL; } EXPORT_SYMBOL(pci_irq_vector); From patchwork Fri Dec 10 22:19:26 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671125 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 B2CF6C433EF for ; Fri, 10 Dec 2021 22:20:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344869AbhLJWYG (ORCPT ); Fri, 10 Dec 2021 17:24:06 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:50696 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344868AbhLJWXD (ORCPT ); Fri, 10 Dec 2021 17:23:03 -0500 Message-ID: <20211210221814.900929381@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174767; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=rNrzn8yRvXgsVUgYBaKAG8ZHI0uIOQ4IQLNHP2L6pxE=; b=nf9eyrsJJrs9ednYCFZjv8J2yY2kMTBnnjDazqRJ511KXpZJf1YcQjdYfXYm2loBQc4e51 X1migsWpqvkVonHlgKGazqD3LQt1VEi1ONQMXlquZAUbD3bWwtHjKz6uiOhNtYIahCIAun mRzaRa8QncWEAJyd2oq1drpHnTqWPT1eKioZJCZmH/BKUQRxgGCPmRRh6EsC/v//nl8sL/ boRobi4kXbHHVHnVHwhXecrQ/I8Q5OXFyHGRvTUgcBYSHxyXSCbkQ+q/m1CrmiEH4i02FY dX0m9VD+WaASxOutJEozXkaEXjuYirVE7txgIlds5ll8afoP9lZT4fq2oH6P3A== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174767; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=rNrzn8yRvXgsVUgYBaKAG8ZHI0uIOQ4IQLNHP2L6pxE=; b=Cgugbw7jJJgW3jPH6Q3nUfo/m4UVuVoB8e3+XhsPb07BsPv7J7QZZ/uWWrdVpdYtMpcMdt NSwEg+9aK1hyY+CQ== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Greg Kroah-Hartman , Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Bjorn Helgaas , Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 28/35] PCI/MSI: Simplify pci_irq_get_affinity() References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:19:26 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner Replace open coded MSI descriptor chasing and use the proper accessor functions instead. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe Tested-by: Nathan Chancellor Tested-by: Cédric Le Goater Reported-by: Guenter Roeck Signed-off-by: Thomas Gleixner --- drivers/pci/msi/msi.c | 26 ++++++++++---------------- 1 file changed, 10 insertions(+), 16 deletions(-) --- a/drivers/pci/msi/msi.c +++ b/drivers/pci/msi/msi.c @@ -1061,26 +1061,20 @@ EXPORT_SYMBOL(pci_irq_vector); */ const struct cpumask *pci_irq_get_affinity(struct pci_dev *dev, int nr) { - if (dev->msix_enabled) { - struct msi_desc *entry; + int irq = pci_irq_vector(dev, nr); + struct msi_desc *desc; - for_each_pci_msi_entry(entry, dev) { - if (entry->msi_index == nr) - return &entry->affinity->mask; - } - WARN_ON_ONCE(1); + if (WARN_ON_ONCE(irq <= 0)) return NULL; - } else if (dev->msi_enabled) { - struct msi_desc *entry = first_pci_msi_entry(dev); - if (WARN_ON_ONCE(!entry || !entry->affinity || - nr >= entry->nvec_used)) - return NULL; - - return &entry->affinity[nr].mask; - } else { + desc = irq_get_msi_desc(irq); + /* Non-MSI does not have the information handy */ + if (!desc) return cpu_possible_mask; - } + + if (WARN_ON_ONCE(!desc->affinity)) + return NULL; + return &desc->affinity[nr].mask; } EXPORT_SYMBOL(pci_irq_get_affinity); From patchwork Fri Dec 10 22:19:28 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671113 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 81DD0C433F5 for ; Fri, 10 Dec 2021 22:19:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345048AbhLJWXZ (ORCPT ); Fri, 10 Dec 2021 17:23:25 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54662 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344907AbhLJWXG (ORCPT ); Fri, 10 Dec 2021 17:23:06 -0500 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 15718C061D76; Fri, 10 Dec 2021 14:19:30 -0800 (PST) Message-ID: <20211210221814.970099984@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174768; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=zF6xwEDBnJqDiuzvbqLmsexoc+W+jGd9VwXdVq5BEMI=; b=3uRJBXLzDA2NYHvGXAjPESXwPtY4wndvLVMfkxhow+rp/kDN16U4X0C98PwLB5MMnD4tYn ZOEGSM2ye4hhzzHTXNKc+wG0/ppoUdhswTzSBop3HHGnldcxLhjnLtQjD+xMmCwf22EUFE Q/zKOvjGyNcbqIgKQIsGXYGvefv5FHydeVKH232ubirlNA6T15859yhIKJ3jJ/7StDjYf2 Oo9QLHN7iSJxzUqL6+fXtAzM9h9rqxwBGkEmlO1cFEBEwCIOcIJDJlbaSJFihp8W7eJp79 8OeTtwQoaG0Z1HU6FBoYv5812za0uLavtriysEdHJ3Xheg5DIbiHdaTlV7ZxlQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174768; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=zF6xwEDBnJqDiuzvbqLmsexoc+W+jGd9VwXdVq5BEMI=; b=jVULDfzUnOD2T8hCESYAAk+sAcevMjadKqHQJ3kXJ4DqJvj5V3VSRLrJFQ9AuMxcORx3I7 XP2F++Om2JcSHtCg== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Greg Kroah-Hartman , Vinod Koul , dmaengine@vger.kernel.org, Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Bjorn Helgaas , Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 29/35] dmaengine: mv_xor_v2: Get rid of msi_desc abuse References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:19:28 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner Storing a pointer to the MSI descriptor just to keep track of the Linux interrupt number is daft. Use msi_get_virq() instead. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe Cc: Vinod Koul Cc: dmaengine@vger.kernel.org Acked-By: Vinod Koul --- drivers/dma/mv_xor_v2.c | 16 +++++----------- 1 file changed, 5 insertions(+), 11 deletions(-) --- a/drivers/dma/mv_xor_v2.c +++ b/drivers/dma/mv_xor_v2.c @@ -149,7 +149,7 @@ struct mv_xor_v2_descriptor { * @desc_size: HW descriptor size * @npendings: number of pending descriptors (for which tx_submit has * @hw_queue_idx: HW queue index - * @msi_desc: local interrupt descriptor information + * @irq: The Linux interrupt number * been called, but not yet issue_pending) */ struct mv_xor_v2_device { @@ -168,7 +168,7 @@ struct mv_xor_v2_device { int desc_size; unsigned int npendings; unsigned int hw_queue_idx; - struct msi_desc *msi_desc; + unsigned int irq; }; /** @@ -718,7 +718,6 @@ static int mv_xor_v2_probe(struct platfo int i, ret = 0; struct dma_device *dma_dev; struct mv_xor_v2_sw_desc *sw_desc; - struct msi_desc *msi_desc; BUILD_BUG_ON(sizeof(struct mv_xor_v2_descriptor) != MV_XOR_V2_EXT_DESC_SIZE); @@ -770,14 +769,9 @@ static int mv_xor_v2_probe(struct platfo if (ret) goto disable_clk; - msi_desc = first_msi_entry(&pdev->dev); - if (!msi_desc) { - ret = -ENODEV; - goto free_msi_irqs; - } - xor_dev->msi_desc = msi_desc; + xor_dev->irq = msi_get_virq(&pdev->dev, 0); - ret = devm_request_irq(&pdev->dev, msi_desc->irq, + ret = devm_request_irq(&pdev->dev, xor_dev->irq, mv_xor_v2_interrupt_handler, 0, dev_name(&pdev->dev), xor_dev); if (ret) @@ -892,7 +886,7 @@ static int mv_xor_v2_remove(struct platf xor_dev->desc_size * MV_XOR_V2_DESC_NUM, xor_dev->hw_desq_virt, xor_dev->hw_desq); - devm_free_irq(&pdev->dev, xor_dev->msi_desc->irq, xor_dev); + devm_free_irq(&pdev->dev, xor_dev->irq, xor_dev); platform_msi_domain_free_irqs(&pdev->dev); From patchwork Fri Dec 10 22:19:29 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671111 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 3F2A0C433FE for ; Fri, 10 Dec 2021 22:19:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345045AbhLJWXY (ORCPT ); Fri, 10 Dec 2021 17:23:24 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:50738 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344899AbhLJWXG (ORCPT ); Fri, 10 Dec 2021 17:23:06 -0500 Message-ID: <20211210221815.029143589@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174770; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=CMaNPxPUtZNOsnEqJOn3U6U1kdxY+NtpTLVPr27+/WY=; b=EvqlUpO3T7X8KMNp3XgG+e3yhF82NAZ2M5y6A12MWgoIyrud3KHV79CLaa8A1W/w2fMrsQ LYeCWIzrB2PJ3nkHOUu99+gQNjYZJ2nFFzgkmK9M5kbS8EACcrcJA5nvulgwqlHBSj67I9 7YmwEsMKo88h/lp98iq/wfXL323gMi+kAz0R0urtlkaiJW/zIz8Ce8trpP3NPO1/2PY+lX 62ssC5yso1LV4qheLUYQWhunj7PWO1yoQ9P8kcfNwViTrSnqyFbZ582iS61x+lp+RUbxzA au4eXWrrM+ypnyPoZhxSChX9cVpDJ9CjG5TdED8Lqs9M3xLa8OxGU2KQXQHX6g== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174770; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=CMaNPxPUtZNOsnEqJOn3U6U1kdxY+NtpTLVPr27+/WY=; b=9yuWBpO3xKR5Wa0Z1Ej6Z030dWItOHliibhKuSikOya/v81orWbYN+DXKj1sCuZggh9Ds3 JoHcOuQq4cA8d/Aw== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Greg Kroah-Hartman , Mark Rutland , Will Deacon , linux-arm-kernel@lists.infradead.org, Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Bjorn Helgaas , Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , Vinod Koul , dmaengine@vger.kernel.org, Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 30/35] perf/smmuv3: Use msi_get_virq() References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:19:29 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner Let the core code fiddle with the MSI descriptor retrieval. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe Cc: Mark Rutland Cc: Will Deacon Cc: linux-arm-kernel@lists.infradead.org --- drivers/perf/arm_smmuv3_pmu.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) --- a/drivers/perf/arm_smmuv3_pmu.c +++ b/drivers/perf/arm_smmuv3_pmu.c @@ -684,7 +684,6 @@ static void smmu_pmu_write_msi_msg(struc static void smmu_pmu_setup_msi(struct smmu_pmu *pmu) { - struct msi_desc *desc; struct device *dev = pmu->dev; int ret; @@ -701,9 +700,7 @@ static void smmu_pmu_setup_msi(struct sm return; } - desc = first_msi_entry(dev); - if (desc) - pmu->irq = desc->irq; + pmu->irq = msi_get_virq(dev, 0); /* Add callback to free MSIs on teardown */ devm_add_action(dev, smmu_pmu_free_msis, dev); From patchwork Fri Dec 10 22:19:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671115 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 07D92C4332F for ; Fri, 10 Dec 2021 22:19:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344922AbhLJWX1 (ORCPT ); Fri, 10 Dec 2021 17:23:27 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:50058 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344918AbhLJWXI (ORCPT ); Fri, 10 Dec 2021 17:23:08 -0500 Message-ID: <20211210221815.089008198@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174771; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=1PKR2Prd+1Li94AkrvejzHYXvOdiS0rHF3AWjJOJ+hY=; b=EXT6ZJHiL9WrQC63pWNeqEY7SfF3jIeVCos8i7xIZwHprSzmRcoSNiXrPRfeBGlX/4efFg GKBzvkr1hfP/TIvTDbw4CCeW2qNJNT1Mrz8mlT8JOpccmtfR+od0ZQ9AQUNq6SHiF7UA3t gC95XdhE8YJZ9o2I7sAZvmGtCHXLa+d9dwdc4G0asxf97pWkhPvcdF3TvGUziuRsuYw+ql n5cM46TBOVor1arusxIXF8fp7Wzk5TqiI9gjuel4qNwYdCdafKWtXUXZHfuM6B8FoM+RnC Gr+GIxVCgZ+BZGSsHPWLRtVqrhQbLaB0ZKkw3F8DrRN180qyN2lempVXeHraIQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174771; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=1PKR2Prd+1Li94AkrvejzHYXvOdiS0rHF3AWjJOJ+hY=; b=Q87ZFBVcPUXRgAfqqpqy/zVPxQ4IgjxdQfabAhW5+cvr8SXGLARh4lgGWZYcuCireCH7xW qehr/nAEfvi/OQDg== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Robin Murphy , Greg Kroah-Hartman , Will Deacon , Joerg Roedel , linux-arm-kernel@lists.infradead.org, iommu@lists.linux-foundation.org, Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Bjorn Helgaas , Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 31/35] iommu/arm-smmu-v3: Use msi_get_virq() References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:19:31 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner Let the core code fiddle with the MSI descriptor retrieval. Signed-off-by: Thomas Gleixner Tested-by: Robin Murphy Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe Cc: Will Deacon Cc: Joerg Roedel Cc: linux-arm-kernel@lists.infradead.org Cc: iommu@lists.linux-foundation.org --- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 19 +++---------------- 1 file changed, 3 insertions(+), 16 deletions(-) --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -3154,7 +3154,6 @@ static void arm_smmu_write_msi_msg(struc static void arm_smmu_setup_msis(struct arm_smmu_device *smmu) { - struct msi_desc *desc; int ret, nvec = ARM_SMMU_MAX_MSIS; struct device *dev = smmu->dev; @@ -3182,21 +3181,9 @@ static void arm_smmu_setup_msis(struct a return; } - for_each_msi_entry(desc, dev) { - switch (desc->msi_index) { - case EVTQ_MSI_INDEX: - smmu->evtq.q.irq = desc->irq; - break; - case GERROR_MSI_INDEX: - smmu->gerr_irq = desc->irq; - break; - case PRIQ_MSI_INDEX: - smmu->priq.q.irq = desc->irq; - break; - default: /* Unknown */ - continue; - } - } + smmu->evtq.q.irq = msi_get_virq(dev, EVTQ_MSI_INDEX); + smmu->gerr_irq = msi_get_virq(dev, GERROR_MSI_INDEX); + smmu->priq.q.irq = msi_get_virq(dev, PRIQ_MSI_INDEX); /* Add callback to free MSIs on teardown */ devm_add_action(dev, arm_smmu_free_msis, dev); From patchwork Fri Dec 10 22:19:32 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671119 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 438BEC433FE for ; Fri, 10 Dec 2021 22:20:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345106AbhLJWXg (ORCPT ); Fri, 10 Dec 2021 17:23:36 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:51086 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344932AbhLJWXK (ORCPT ); Fri, 10 Dec 2021 17:23:10 -0500 Message-ID: <20211210221815.148331680@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174773; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=1mcUFIyf9ySwp0yGA9BXrnZ9ta7jfneNSCIqf6wYVGk=; b=oKS80X/kJKLB8GB+c0SIKmguD/kevr7iZutS3fVTQ+rGCeSum9bn5Q+v1Est6NyleDXcvj C2TzfgyjVUEpqtu5aaWZcLjJlLFf0vRy+2ceD1IEYbC6SY7NiYO3pa/K3tveERBEi2lJ+W LrV7kcXBnYzWCcxOpkhXAviCnM6+blWD3RE5ejV9PjRrOFaNsJDbWBAt4YGwG4M9YMgqFp ixEY9UW4+wZWMAyVzTPe7Ms2nyLA/mEG6RCm8A0SFpOGFd1HIpzokfKB41UHXnSURcCa5O ptjXGZ9/US9gmPa1yw0KaJD2RG+xIPdfx7ti5vbGRnDGULGvRIPGUkdJ9s5kLQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174773; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=1mcUFIyf9ySwp0yGA9BXrnZ9ta7jfneNSCIqf6wYVGk=; b=7Nl66lpVGonXIzUJuEqPSV3MziV+dwsh1VZ137uXNOy+N9tDDG/1eW2YpLYeL3y+xjSQjH DDQUDmuZmfQw0OCw== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Greg Kroah-Hartman , Jassi Brar , Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Bjorn Helgaas , Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Peter Ujfalusi , Sinan Kaya Subject: [patch V3 32/35] mailbox: bcm-flexrm-mailbox: Rework MSI interrupt handling References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:19:32 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner No point in retrieving the MSI descriptors. Just query the Linux interrupt number. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe Cc: Jassi Brar --- drivers/mailbox/bcm-flexrm-mailbox.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) --- a/drivers/mailbox/bcm-flexrm-mailbox.c +++ b/drivers/mailbox/bcm-flexrm-mailbox.c @@ -1497,7 +1497,6 @@ static int flexrm_mbox_probe(struct plat int index, ret = 0; void __iomem *regs; void __iomem *regs_end; - struct msi_desc *desc; struct resource *iomem; struct flexrm_ring *ring; struct flexrm_mbox *mbox; @@ -1608,10 +1607,8 @@ static int flexrm_mbox_probe(struct plat goto fail_destroy_cmpl_pool; /* Save alloced IRQ numbers for each ring */ - for_each_msi_entry(desc, dev) { - ring = &mbox->rings[desc->msi_index]; - ring->irq = desc->irq; - } + for (index = 0; index < mbox->num_rings; index++) + mbox->rings[index].irq = msi_get_virq(dev, index); /* Check availability of debugfs */ if (!debugfs_initialized()) From patchwork Fri Dec 10 22:19:34 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671117 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 99E9AC433F5 for ; Fri, 10 Dec 2021 22:20:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344942AbhLJWXe (ORCPT ); Fri, 10 Dec 2021 17:23:34 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:51134 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344946AbhLJWXL (ORCPT ); Fri, 10 Dec 2021 17:23:11 -0500 Message-ID: <20211210221815.207838579@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174774; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=9W0PenGJOabQuxHdL2FiXZSFBmG9hO0u6DF+sGaPwsQ=; b=FBUn8ueMSvkuKgwtqPtBtR/2nbyMaW5RgnxN6V9NRAVL3aT06KJramowbWbr+ECa5o6EIs DXYcl/M/t7wn2Vy46sN5lfBpNABm5lBAMTicbKnpsMSGgN1CSbq9AH2KcDYTIgtpL5T/gg Ch/1IE6n3cPEQHHpS5XqkAVZJJ//It0q8gllznZV79lvNKaMo2CTqBpMiaG5k13IDARMTU U++JUDGsB1MfnUhSTx34KJzuOScXHOHvLD/bNq35VFk/t5dkD02Rb8ewKOWVWeS2F00NLg 1ugq6mxz7a/+IzhfYxzJ2XwAnbHBpBGQqr4JfosAxyZTEiW6MlVjw4PuHC+yiA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174774; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=9W0PenGJOabQuxHdL2FiXZSFBmG9hO0u6DF+sGaPwsQ=; b=mAKBO9iPA/DwNd5uWhs01QEYd5up3ZunfRyucK5uCYlEOMfTIgFQcEWaz2qGiU58uydKLu Lt6Mpqf0D9cspbBw== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Greg Kroah-Hartman , Stuart Yoder , Laurentiu Tudor , Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Bjorn Helgaas , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , dmaengine@vger.kernel.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi , Sinan Kaya Subject: [patch V3 33/35] bus: fsl-mc: fsl-mc-allocator: Rework MSI handling References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:19:34 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner Storing a pointer to the MSI descriptor just to track the Linux interrupt number is daft. Just store the interrupt number and be done with it. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe Cc: Stuart Yoder Cc: Laurentiu Tudor --- drivers/bus/fsl-mc/dprc-driver.c | 8 ++++---- drivers/bus/fsl-mc/fsl-mc-allocator.c | 9 ++------- drivers/bus/fsl-mc/fsl-mc-msi.c | 6 +++--- drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 4 ++-- drivers/net/ethernet/freescale/dpaa2/dpaa2-ptp.c | 4 +--- drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c | 5 ++--- drivers/soc/fsl/dpio/dpio-driver.c | 8 ++++---- drivers/vfio/fsl-mc/vfio_fsl_mc_intr.c | 4 ++-- include/linux/fsl/mc.h | 4 ++-- 9 files changed, 22 insertions(+), 30 deletions(-) --- a/drivers/bus/fsl-mc/dprc-driver.c +++ b/drivers/bus/fsl-mc/dprc-driver.c @@ -400,7 +400,7 @@ static irqreturn_t dprc_irq0_handler_thr struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev); struct fsl_mc_bus *mc_bus = to_fsl_mc_bus(mc_dev); struct fsl_mc_io *mc_io = mc_dev->mc_io; - struct msi_desc *msi_desc = mc_dev->irqs[0]->msi_desc; + int irq = mc_dev->irqs[0]->virq; dev_dbg(dev, "DPRC IRQ %d triggered on CPU %u\n", irq_num, smp_processor_id()); @@ -409,7 +409,7 @@ static irqreturn_t dprc_irq0_handler_thr return IRQ_HANDLED; mutex_lock(&mc_bus->scan_mutex); - if (!msi_desc || msi_desc->irq != (u32)irq_num) + if (irq != (u32)irq_num) goto out; status = 0; @@ -521,7 +521,7 @@ static int register_dprc_irq_handler(str * function that programs the MSI physically in the device */ error = devm_request_threaded_irq(&mc_dev->dev, - irq->msi_desc->irq, + irq->virq, dprc_irq0_handler, dprc_irq0_handler_thread, IRQF_NO_SUSPEND | IRQF_ONESHOT, @@ -771,7 +771,7 @@ static void dprc_teardown_irq(struct fsl (void)disable_dprc_irq(mc_dev); - devm_free_irq(&mc_dev->dev, irq->msi_desc->irq, &mc_dev->dev); + devm_free_irq(&mc_dev->dev, irq->virq, &mc_dev->dev); fsl_mc_free_irqs(mc_dev); } --- a/drivers/bus/fsl-mc/fsl-mc-allocator.c +++ b/drivers/bus/fsl-mc/fsl-mc-allocator.c @@ -350,7 +350,6 @@ int fsl_mc_populate_irq_pool(struct fsl_ unsigned int irq_count) { unsigned int i; - struct msi_desc *msi_desc; struct fsl_mc_device_irq *irq_resources; struct fsl_mc_device_irq *mc_dev_irq; int error; @@ -388,16 +387,12 @@ int fsl_mc_populate_irq_pool(struct fsl_ mc_dev_irq->resource.type = res_pool->type; mc_dev_irq->resource.data = mc_dev_irq; mc_dev_irq->resource.parent_pool = res_pool; + mc_dev_irq->virq = msi_get_virq(&mc_bus_dev->dev, i); + mc_dev_irq->resource.id = mc_dev_irq->virq; INIT_LIST_HEAD(&mc_dev_irq->resource.node); list_add_tail(&mc_dev_irq->resource.node, &res_pool->free_list); } - for_each_msi_entry(msi_desc, &mc_bus_dev->dev) { - mc_dev_irq = &irq_resources[msi_desc->msi_index]; - mc_dev_irq->msi_desc = msi_desc; - mc_dev_irq->resource.id = msi_desc->irq; - } - res_pool->max_count = irq_count; res_pool->free_count = irq_count; mc_bus->irq_resources = irq_resources; --- a/drivers/bus/fsl-mc/fsl-mc-msi.c +++ b/drivers/bus/fsl-mc/fsl-mc-msi.c @@ -58,11 +58,11 @@ static void fsl_mc_msi_update_dom_ops(st } static void __fsl_mc_msi_write_msg(struct fsl_mc_device *mc_bus_dev, - struct fsl_mc_device_irq *mc_dev_irq) + struct fsl_mc_device_irq *mc_dev_irq, + struct msi_desc *msi_desc) { int error; struct fsl_mc_device *owner_mc_dev = mc_dev_irq->mc_dev; - struct msi_desc *msi_desc = mc_dev_irq->msi_desc; struct dprc_irq_cfg irq_cfg; /* @@ -129,7 +129,7 @@ static void fsl_mc_msi_write_msg(struct /* * Program the MSI (paddr, value) pair in the device: */ - __fsl_mc_msi_write_msg(mc_bus_dev, mc_dev_irq); + __fsl_mc_msi_write_msg(mc_bus_dev, mc_dev_irq, msi_desc); } static void fsl_mc_msi_update_chip_ops(struct msi_domain_info *info) --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c @@ -4246,7 +4246,7 @@ static int dpaa2_eth_setup_irqs(struct f } irq = ls_dev->irqs[0]; - err = devm_request_threaded_irq(&ls_dev->dev, irq->msi_desc->irq, + err = devm_request_threaded_irq(&ls_dev->dev, irq->virq, NULL, dpni_irq0_handler_thread, IRQF_NO_SUSPEND | IRQF_ONESHOT, dev_name(&ls_dev->dev), &ls_dev->dev); @@ -4273,7 +4273,7 @@ static int dpaa2_eth_setup_irqs(struct f return 0; free_irq: - devm_free_irq(&ls_dev->dev, irq->msi_desc->irq, &ls_dev->dev); + devm_free_irq(&ls_dev->dev, irq->virq, &ls_dev->dev); free_mc_irq: fsl_mc_free_irqs(ls_dev); --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-ptp.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-ptp.c @@ -129,7 +129,6 @@ static irqreturn_t dpaa2_ptp_irq_handler static int dpaa2_ptp_probe(struct fsl_mc_device *mc_dev) { struct device *dev = &mc_dev->dev; - struct fsl_mc_device_irq *irq; struct ptp_qoriq *ptp_qoriq; struct device_node *node; void __iomem *base; @@ -177,8 +176,7 @@ static int dpaa2_ptp_probe(struct fsl_mc goto err_unmap; } - irq = mc_dev->irqs[0]; - ptp_qoriq->irq = irq->msi_desc->irq; + ptp_qoriq->irq = mc_dev->irqs[0]->virq; err = request_threaded_irq(ptp_qoriq->irq, NULL, dpaa2_ptp_irq_handler_thread, --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c @@ -1553,8 +1553,7 @@ static int dpaa2_switch_setup_irqs(struc irq = sw_dev->irqs[DPSW_IRQ_INDEX_IF]; - err = devm_request_threaded_irq(dev, irq->msi_desc->irq, - NULL, + err = devm_request_threaded_irq(dev, irq->virq, NULL, dpaa2_switch_irq0_handler_thread, IRQF_NO_SUSPEND | IRQF_ONESHOT, dev_name(dev), dev); @@ -1580,7 +1579,7 @@ static int dpaa2_switch_setup_irqs(struc return 0; free_devm_irq: - devm_free_irq(dev, irq->msi_desc->irq, dev); + devm_free_irq(dev, irq->virq, dev); free_irq: fsl_mc_free_irqs(sw_dev); return err; --- a/drivers/soc/fsl/dpio/dpio-driver.c +++ b/drivers/soc/fsl/dpio/dpio-driver.c @@ -88,7 +88,7 @@ static void unregister_dpio_irq_handlers irq = dpio_dev->irqs[0]; /* clear the affinity hint */ - irq_set_affinity_hint(irq->msi_desc->irq, NULL); + irq_set_affinity_hint(irq->virq, NULL); } static int register_dpio_irq_handlers(struct fsl_mc_device *dpio_dev, int cpu) @@ -98,7 +98,7 @@ static int register_dpio_irq_handlers(st irq = dpio_dev->irqs[0]; error = devm_request_irq(&dpio_dev->dev, - irq->msi_desc->irq, + irq->virq, dpio_irq_handler, 0, dev_name(&dpio_dev->dev), @@ -111,10 +111,10 @@ static int register_dpio_irq_handlers(st } /* set the affinity hint */ - if (irq_set_affinity_hint(irq->msi_desc->irq, cpumask_of(cpu))) + if (irq_set_affinity_hint(irq->virq, cpumask_of(cpu))) dev_err(&dpio_dev->dev, "irq_set_affinity failed irq %d cpu %d\n", - irq->msi_desc->irq, cpu); + irq->virq, cpu); return 0; } --- a/drivers/vfio/fsl-mc/vfio_fsl_mc_intr.c +++ b/drivers/vfio/fsl-mc/vfio_fsl_mc_intr.c @@ -67,7 +67,7 @@ static int vfio_set_trigger(struct vfio_ int hwirq; int ret; - hwirq = vdev->mc_dev->irqs[index]->msi_desc->irq; + hwirq = vdev->mc_dev->irqs[index]->virq; if (irq->trigger) { free_irq(hwirq, irq); kfree(irq->name); @@ -137,7 +137,7 @@ static int vfio_fsl_mc_set_irq_trigger(s return vfio_set_trigger(vdev, index, fd); } - hwirq = vdev->mc_dev->irqs[index]->msi_desc->irq; + hwirq = vdev->mc_dev->irqs[index]->virq; irq = &vdev->mc_irqs[index]; --- a/include/linux/fsl/mc.h +++ b/include/linux/fsl/mc.h @@ -91,13 +91,13 @@ struct fsl_mc_resource { /** * struct fsl_mc_device_irq - MC object device message-based interrupt - * @msi_desc: pointer to MSI descriptor allocated by fsl_mc_msi_alloc_descs() + * @virq: Linux virtual interrupt number * @mc_dev: MC object device that owns this interrupt * @dev_irq_index: device-relative IRQ index * @resource: MC generic resource associated with the interrupt */ struct fsl_mc_device_irq { - struct msi_desc *msi_desc; + unsigned int virq; struct fsl_mc_device *mc_dev; u8 dev_irq_index; struct fsl_mc_resource resource; From patchwork Fri Dec 10 22:19:35 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671123 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 71EDAC433F5 for ; Fri, 10 Dec 2021 22:20:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344967AbhLJWXx (ORCPT ); Fri, 10 Dec 2021 17:23:53 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:50238 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344961AbhLJWXN (ORCPT ); Fri, 10 Dec 2021 17:23:13 -0500 Message-ID: <20211210221815.269468319@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174776; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=vWoIYZmWx3H0h9pFUJiUBADTUR4l5NcbszlCZMu1Kwk=; b=VY9AhPc6Y86iy9XnKaKC022X5LX2E1Sin0mw6tqrZ3osyzhE+2W7SgnSBOgXimvkWKulED l4AuEUnopvI0lV/tgmo9e24Dfo6ML2fTsHk9X0iLcJ22dC2ADIYHepaTVbk5XFH3pO3wRH 29E4/m4y7LIeWYmEDeaZq0LcdgImdDpC2mfPGC6zarCUVVtau23HzuA1JELcqLNznzIKv/ EiD8V5EophlaHy5XIW5/kNy//V9j9uzcT0LENNV9cAgIYxQ/RjQU3v+6A+2zr9hQU7S1ZZ XsNiTChg6t09pw/yjxLmwIAqVQpTFeYErMOSAEzKecIm846Z0MDkmHqG1chyoQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174776; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=vWoIYZmWx3H0h9pFUJiUBADTUR4l5NcbszlCZMu1Kwk=; b=nm4LR+v2Mbj1oO9KG+4c2hdaYxWpH8aXSxojWvNUkbO4swV7whxzoVJADykQyKGVACgArD 5K9p/ZVSiPs35tCw== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Greg Kroah-Hartman , Peter Ujfalusi , Vinod Koul , dmaengine@vger.kernel.org, Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Bjorn Helgaas , Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Sinan Kaya Subject: [patch V3 34/35] soc: ti: ti_sci_inta_msi: Get rid of ti_sci_inta_msi_get_virq() References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:19:35 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner Just use the core function msi_get_virq(). Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe Cc: Peter Ujfalusi Cc: Vinod Koul Cc: dmaengine@vger.kernel.org Acked-by: Arnd Bergmann Acked-By: Vinod Koul Acked-by: Nishanth Menon --- drivers/dma/ti/k3-udma-private.c | 6 ++---- drivers/dma/ti/k3-udma.c | 10 ++++------ drivers/soc/ti/k3-ringacc.c | 2 +- drivers/soc/ti/ti_sci_inta_msi.c | 12 ------------ include/linux/soc/ti/ti_sci_inta_msi.h | 1 - 5 files changed, 7 insertions(+), 24 deletions(-) --- a/drivers/dma/ti/k3-udma-private.c +++ b/drivers/dma/ti/k3-udma-private.c @@ -168,8 +168,7 @@ int xudma_pktdma_tflow_get_irq(struct ud { const struct udma_oes_offsets *oes = &ud->soc_data->oes; - return ti_sci_inta_msi_get_virq(ud->dev, udma_tflow_id + - oes->pktdma_tchan_flow); + return msi_get_virq(ud->dev, udma_tflow_id + oes->pktdma_tchan_flow); } EXPORT_SYMBOL(xudma_pktdma_tflow_get_irq); @@ -177,7 +176,6 @@ int xudma_pktdma_rflow_get_irq(struct ud { const struct udma_oes_offsets *oes = &ud->soc_data->oes; - return ti_sci_inta_msi_get_virq(ud->dev, udma_rflow_id + - oes->pktdma_rchan_flow); + return msi_get_virq(ud->dev, udma_rflow_id + oes->pktdma_rchan_flow); } EXPORT_SYMBOL(xudma_pktdma_rflow_get_irq); --- a/drivers/dma/ti/k3-udma.c +++ b/drivers/dma/ti/k3-udma.c @@ -2313,8 +2313,7 @@ static int udma_alloc_chan_resources(str /* Event from UDMA (TR events) only needed for slave TR mode channels */ if (is_slave_direction(uc->config.dir) && !uc->config.pkt_mode) { - uc->irq_num_udma = ti_sci_inta_msi_get_virq(ud->dev, - irq_udma_idx); + uc->irq_num_udma = msi_get_virq(ud->dev, irq_udma_idx); if (uc->irq_num_udma <= 0) { dev_err(ud->dev, "Failed to get udma irq (index: %u)\n", irq_udma_idx); @@ -2486,7 +2485,7 @@ static int bcdma_alloc_chan_resources(st uc->psil_paired = true; } - uc->irq_num_ring = ti_sci_inta_msi_get_virq(ud->dev, irq_ring_idx); + uc->irq_num_ring = msi_get_virq(ud->dev, irq_ring_idx); if (uc->irq_num_ring <= 0) { dev_err(ud->dev, "Failed to get ring irq (index: %u)\n", irq_ring_idx); @@ -2503,8 +2502,7 @@ static int bcdma_alloc_chan_resources(st /* Event from BCDMA (TR events) only needed for slave channels */ if (is_slave_direction(uc->config.dir)) { - uc->irq_num_udma = ti_sci_inta_msi_get_virq(ud->dev, - irq_udma_idx); + uc->irq_num_udma = msi_get_virq(ud->dev, irq_udma_idx); if (uc->irq_num_udma <= 0) { dev_err(ud->dev, "Failed to get bcdma irq (index: %u)\n", irq_udma_idx); @@ -2672,7 +2670,7 @@ static int pktdma_alloc_chan_resources(s uc->psil_paired = true; - uc->irq_num_ring = ti_sci_inta_msi_get_virq(ud->dev, irq_ring_idx); + uc->irq_num_ring = msi_get_virq(ud->dev, irq_ring_idx); if (uc->irq_num_ring <= 0) { dev_err(ud->dev, "Failed to get ring irq (index: %u)\n", irq_ring_idx); --- a/drivers/soc/ti/k3-ringacc.c +++ b/drivers/soc/ti/k3-ringacc.c @@ -647,7 +647,7 @@ int k3_ringacc_get_ring_irq_num(struct k if (!ring) return -EINVAL; - irq_num = ti_sci_inta_msi_get_virq(ring->parent->dev, ring->ring_id); + irq_num = msi_get_virq(ring->parent->dev, ring->ring_id); if (irq_num <= 0) irq_num = -EINVAL; return irq_num; --- a/drivers/soc/ti/ti_sci_inta_msi.c +++ b/drivers/soc/ti/ti_sci_inta_msi.c @@ -148,15 +148,3 @@ void ti_sci_inta_msi_domain_free_irqs(st ti_sci_inta_msi_free_descs(dev); } EXPORT_SYMBOL_GPL(ti_sci_inta_msi_domain_free_irqs); - -unsigned int ti_sci_inta_msi_get_virq(struct device *dev, u32 dev_index) -{ - struct msi_desc *desc; - - for_each_msi_entry(desc, dev) - if (desc->msi_index == dev_index) - return desc->irq; - - return -ENODEV; -} -EXPORT_SYMBOL_GPL(ti_sci_inta_msi_get_virq); --- a/include/linux/soc/ti/ti_sci_inta_msi.h +++ b/include/linux/soc/ti/ti_sci_inta_msi.h @@ -18,6 +18,5 @@ struct irq_domain struct irq_domain *parent); int ti_sci_inta_msi_domain_alloc_irqs(struct device *dev, struct ti_sci_resource *res); -unsigned int ti_sci_inta_msi_get_virq(struct device *dev, u32 index); void ti_sci_inta_msi_domain_free_irqs(struct device *dev); #endif /* __INCLUDE_LINUX_IRQCHIP_TI_SCI_INTA_H */ From patchwork Fri Dec 10 22:19:37 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12671121 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 EEF56C433EF for ; Fri, 10 Dec 2021 22:20:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344763AbhLJWXk (ORCPT ); Fri, 10 Dec 2021 17:23:40 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:51232 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344968AbhLJWXO (ORCPT ); Fri, 10 Dec 2021 17:23:14 -0500 Message-ID: <20211210221815.329792721@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1639174778; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=El+H3F4NXV3E+px9T1PJDDlrE0XW8D36UmPAiNafE8w=; b=Uy0NC+QniJEawZ4yuuEFtqIMzw9PFLBgpx0HDrRUo2md8XUl4SS73Nl7EfE819E5PtpbVc LAz+1cPwMJ/P73wMT+BU/i9qA4amhAWgAueMd0/fC606btT7duSv4NvM14w5Glhzh8MMt6 Vf8SrpkxfuLKYwgK8ZgtU7FQjNQoMGjZqRjEQAW68HIHWKLNXxWyDiwhGs8MAwuo+Mw6+1 gNzbkVQZh77bKcaEtUEDOtwWMdTwvsOeTeAuHpf0qQRNTFrf+/FLo1BbMBzYXFZsIbop/R ssapnQMEEzj69/QY+0rBqrGI4rNejNtgJBDAT+PK0tQBj3vgRF91DKkGdlcQHg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1639174778; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=El+H3F4NXV3E+px9T1PJDDlrE0XW8D36UmPAiNafE8w=; b=rCtZG1LYH0eCoa6arIPeivQCBnZ/C7/60VDfvadqZFSQ6CFg6eVTEQvW1V/zkV59EqrcH/ ZMdJiiA2xvl8beBw== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , Greg Kroah-Hartman , Sinan Kaya , dmaengine@vger.kernel.org, Juergen Gross , xen-devel@lists.xenproject.org, Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Bjorn Helgaas , Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , Mark Rutland , Will Deacon , Robin Murphy , Joerg Roedel , iommu@lists.linux-foundation.org, Jassi Brar , Peter Ujfalusi Subject: [patch V3 35/35] dmaengine: qcom_hidma: Cleanup MSI handling References: <20211210221642.869015045@linutronix.de> MIME-Version: 1.0 Date: Fri, 10 Dec 2021 23:19:37 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Thomas Gleixner There is no reason to walk the MSI descriptors to retrieve the interrupt number for a device. Use msi_get_virq() instead. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe Acked-by: Sinan Kaya Cc: dmaengine@vger.kernel.org Acked-By: Vinod Koul --- drivers/dma/qcom/hidma.c | 42 ++++++++++++++++++------------------------ 1 file changed, 18 insertions(+), 24 deletions(-) --- a/drivers/dma/qcom/hidma.c +++ b/drivers/dma/qcom/hidma.c @@ -678,11 +678,13 @@ static void hidma_free_msis(struct hidma { #ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN struct device *dev = dmadev->ddev.dev; - struct msi_desc *desc; + int i, virq; - /* free allocated MSI interrupts above */ - for_each_msi_entry(desc, dev) - devm_free_irq(dev, desc->irq, &dmadev->lldev); + for (i = 0; i < HIDMA_MSI_INTS; i++) { + virq = msi_get_virq(dev, i); + if (virq) + devm_free_irq(dev, virq, &dmadev->lldev); + } platform_msi_domain_free_irqs(dev); #endif @@ -692,45 +694,37 @@ static int hidma_request_msi(struct hidm struct platform_device *pdev) { #ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN - int rc; - struct msi_desc *desc; - struct msi_desc *failed_desc = NULL; + int rc, i, virq; rc = platform_msi_domain_alloc_irqs(&pdev->dev, HIDMA_MSI_INTS, hidma_write_msi_msg); if (rc) return rc; - for_each_msi_entry(desc, &pdev->dev) { - if (!desc->msi_index) - dmadev->msi_virqbase = desc->irq; - - rc = devm_request_irq(&pdev->dev, desc->irq, + for (i = 0; i < HIDMA_MSI_INTS; i++) { + virq = msi_get_virq(&pdev->dev, i); + rc = devm_request_irq(&pdev->dev, virq, hidma_chirq_handler_msi, 0, "qcom-hidma-msi", &dmadev->lldev); - if (rc) { - failed_desc = desc; + if (rc) break; - } + if (!i) + dmadev->msi_virqbase = virq; } if (rc) { /* free allocated MSI interrupts above */ - for_each_msi_entry(desc, &pdev->dev) { - if (desc == failed_desc) - break; - devm_free_irq(&pdev->dev, desc->irq, - &dmadev->lldev); + for (--i; i >= 0; i--) { + virq = msi_get_virq(&pdev->dev, i); + devm_free_irq(&pdev->dev, virq, &dmadev->lldev); } + dev_warn(&pdev->dev, + "failed to request MSI irq, falling back to wired IRQ\n"); } else { /* Add callback to free MSIs on teardown */ hidma_ll_setup_irq(dmadev->lldev, true); - } - if (rc) - dev_warn(&pdev->dev, - "failed to request MSI irq, falling back to wired IRQ\n"); return rc; #else return -EINVAL;