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Wed, 30 Oct 2019 17:00:01 +0000 (GMT) Received: from b01ledav004.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 3851A11206F; Wed, 30 Oct 2019 17:00:01 +0000 (GMT) Received: from arbab-laptop.localdomain (unknown [9.53.179.210]) by b01ledav004.gho.pok.ibm.com (Postfix) with ESMTP; Wed, 30 Oct 2019 17:00:01 +0000 (GMT) Received: by arbab-laptop.localdomain (Postfix, from userid 152845) id 50AE94654A7; Wed, 30 Oct 2019 12:00:00 -0500 (CDT) From: Reza Arbab To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH 03/11] powerpc/powernv/npu: Change pnv_npu_try_dma_set_bypass() argument Date: Wed, 30 Oct 2019 11:59:52 -0500 Message-Id: <1572454800-17976-4-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" To enable simpler calling code, change this function to find the value of bypass instead of taking it as an argument. Signed-off-by: Reza Arbab --- arch/powerpc/platforms/powernv/npu-dma.c | 12 +++++++++--- arch/powerpc/platforms/powernv/pci.h | 2 +- 2 files changed, 10 insertions(+), 4 deletions(-) diff --git a/arch/powerpc/platforms/powernv/npu-dma.c b/arch/powerpc/platforms/powernv/npu-dma.c index 5a8313654033..a6b8c7ad36e4 100644 --- a/arch/powerpc/platforms/powernv/npu-dma.c +++ b/arch/powerpc/platforms/powernv/npu-dma.c @@ -258,13 +258,21 @@ static int pnv_npu_dma_set_bypass(struct pnv_ioda_pe *npe) return rc; } -void pnv_npu_try_dma_set_bypass(struct pci_dev *gpdev, bool bypass) +void pnv_npu_try_dma_set_bypass(struct pci_dev *gpdev, u64 mask) { + struct pnv_ioda_pe *gpe = pnv_ioda_get_pe(gpdev); int i; struct pnv_phb *phb; struct pci_dn *pdn; struct pnv_ioda_pe *npe; struct pci_dev *npdev; + bool bypass; + + if (!gpe) + return; + + /* We only do bypass if it's enabled on the linked device */ + bypass = pnv_ioda_pe_iommu_bypass_supported(gpe, mask); for (i = 0; ; ++i) { npdev = pnv_pci_get_npu_dev(gpdev, i); @@ -277,8 +285,6 @@ void pnv_npu_try_dma_set_bypass(struct pci_dev *gpdev, bool bypass) return; phb = pci_bus_to_host(npdev->bus)->private_data; - - /* We only do bypass if it's enabled on the linked device */ npe = &phb->ioda.pe_array[pdn->pe_number]; if (bypass) { diff --git a/arch/powerpc/platforms/powernv/pci.h b/arch/powerpc/platforms/powernv/pci.h index 41f7dec3aee5..21db0f4cfb11 100644 --- a/arch/powerpc/platforms/powernv/pci.h +++ b/arch/powerpc/platforms/powernv/pci.h @@ -211,7 +211,7 @@ extern void pe_level_printk(const struct pnv_ioda_pe *pe, const char *level, pe_level_printk(pe, KERN_INFO, fmt, ##__VA_ARGS__) /* Nvlink functions */ -extern void pnv_npu_try_dma_set_bypass(struct pci_dev *gpdev, bool bypass); +extern void pnv_npu_try_dma_set_bypass(struct pci_dev *gpdev, u64 mask); extern void pnv_pci_ioda2_tce_invalidate_entire(struct pnv_phb *phb, bool rm); extern struct pnv_ioda_pe *pnv_pci_npu_setup_iommu(struct pnv_ioda_pe *npe); extern struct iommu_table_group *pnv_try_setup_npu_table_group(