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Wed, 30 Oct 2019 17:00:01 +0000 (GMT) Received: from b03ledav004.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id B739E78079; Wed, 30 Oct 2019 17:00:01 +0000 (GMT) Received: from arbab-laptop.localdomain (unknown [9.53.179.210]) by b03ledav004.gho.boulder.ibm.com (Postfix) with ESMTP; Wed, 30 Oct 2019 17:00:01 +0000 (GMT) Received: by arbab-laptop.localdomain (Postfix, from userid 152845) id 71B7E4654AF; Wed, 30 Oct 2019 12:00:00 -0500 (CDT) From: Reza Arbab To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH 09/11] Revert "powerpc/pci: remove the dma_set_mask pci_controller ops methods" Date: Wed, 30 Oct 2019 11:59:58 -0500 Message-Id: <1572454800-17976-10-git-send-email-arbab@linux.ibm.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1572454800-17976-1-git-send-email-arbab@linux.ibm.com> References: <1572454800-17976-1-git-send-email-arbab@linux.ibm.com> X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-10-30_07:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1908290000 definitions=main-1910300150 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Andrew Donnellan , Alexey Kardashevskiy , Oliver O'Halloran , Alistair Popple , Paul Mackerras , Thomas Gleixner , Christoph Hellwig Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Bring back the pci controller based hook in dma_set_mask(), as it will have a user again. This reverts commit 662acad4067a ("powerpc/pci: remove the dma_set_mask pci_controller ops methods"). The callback signature has been adjusted with void return to fit its caller. Signed-off-by: Reza Arbab Cc: Christoph Hellwig --- arch/powerpc/include/asm/pci-bridge.h | 2 ++ arch/powerpc/kernel/dma-mask.c | 9 +++++++++ 2 files changed, 11 insertions(+) diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h index ea6ec65970ef..8512dcd053c5 100644 --- a/arch/powerpc/include/asm/pci-bridge.h +++ b/arch/powerpc/include/asm/pci-bridge.h @@ -43,6 +43,8 @@ struct pci_controller_ops { void (*teardown_msi_irqs)(struct pci_dev *pdev); #endif + void (*dma_set_mask)(struct pci_dev *pdev, u64 dma_mask); + void (*shutdown)(struct pci_controller *hose); }; diff --git a/arch/powerpc/kernel/dma-mask.c b/arch/powerpc/kernel/dma-mask.c index ffbbbc432612..35b5fd1b03a6 100644 --- a/arch/powerpc/kernel/dma-mask.c +++ b/arch/powerpc/kernel/dma-mask.c @@ -2,11 +2,20 @@ #include #include +#include #include void arch_dma_set_mask(struct device *dev, u64 dma_mask) { if (ppc_md.dma_set_mask) ppc_md.dma_set_mask(dev, dma_mask); + + if (dev_is_pci(dev)) { + struct pci_dev *pdev = to_pci_dev(dev); + struct pci_controller *phb = pci_bus_to_host(pdev->bus); + + if (phb->controller_ops.dma_set_mask) + phb->controller_ops.dma_set_mask(pdev, dma_mask); + } } EXPORT_SYMBOL(arch_dma_set_mask);