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From: Christoph Hellwig <hch@lst.de>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	Michael Ellerman <mpe@ellerman.id.au>
Cc: linuxppc-dev@lists.ozlabs.org, iommu@lists.linux-foundation.org,
	linux-mm@kvack.org, linux-arch@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH 30/33] powerpc/dma: remove set_dma_offset
Date: Tue,  9 Oct 2018 15:24:57 +0200	[thread overview]
Message-ID: <20181009132500.17643-31-hch@lst.de> (raw)
In-Reply-To: <20181009132500.17643-1-hch@lst.de>

There is no good reason for this helper, just opencode it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/powerpc/include/asm/dma-mapping.h    | 6 ------
 arch/powerpc/kernel/pci-common.c          | 2 +-
 arch/powerpc/platforms/cell/iommu.c       | 4 ++--
 arch/powerpc/platforms/powernv/pci-ioda.c | 6 +++---
 arch/powerpc/platforms/pseries/iommu.c    | 7 ++-----
 arch/powerpc/sysdev/dart_iommu.c          | 2 +-
 arch/powerpc/sysdev/fsl_pci.c             | 2 +-
 drivers/misc/cxl/vphb.c                   | 2 +-
 8 files changed, 11 insertions(+), 20 deletions(-)

diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 2d0879b0acf3..e12439ae8211 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -87,11 +87,5 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return NULL;
 }
 
-static inline void set_dma_offset(struct device *dev, dma_addr_t off)
-{
-	if (dev)
-		dev->archdata.dma_offset = off;
-}
-
 #endif /* __KERNEL__ */
 #endif	/* _ASM_DMA_MAPPING_H */
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index a84707680525..fca2b0bafd82 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -966,7 +966,7 @@ static void pcibios_setup_device(struct pci_dev *dev)
 
 	/* Hook up default DMA ops */
 	set_dma_ops(&dev->dev, pci_dma_ops);
-	set_dma_offset(&dev->dev, PCI_DRAM_OFFSET);
+	dev->dev.archdata.dma_offset = PCI_DRAM_OFFSET;
 
 	/* Additional platform DMA/iommu setup */
 	phb = pci_bus_to_host(dev->bus);
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index 93c7e4aef571..997ee0f5fc2f 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -577,10 +577,10 @@ static void cell_dma_dev_setup(struct device *dev)
 		u64 addr = cell_iommu_get_fixed_address(dev);
 
 		if (addr != OF_BAD_ADDR)
-			set_dma_offset(dev, addr + dma_iommu_fixed_base);
+			dev->archdata.dma_offset = addr + dma_iommu_fixed_base;
 		set_iommu_table_base(dev, cell_get_iommu_table(dev));
 	} else {
-		set_dma_offset(dev, cell_dma_nommu_offset);
+		dev->archdata.dma_offset = cell_dma_nommu_offset;
 	}
 }
 
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 5748b62e2e86..e2333e10598d 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -1660,7 +1660,7 @@ static void pnv_pci_ioda_dma_dev_setup(struct pnv_phb *phb, struct pci_dev *pdev
 
 	pe = &phb->ioda.pe_array[pdn->pe_number];
 	WARN_ON(get_dma_ops(&pdev->dev) != &dma_iommu_ops);
-	set_dma_offset(&pdev->dev, pe->tce_bypass_base);
+	pdev->dev.archdata.dma_offset = pe->tce_bypass_base;
 	set_iommu_table_base(&pdev->dev, pe->table_group.tables[0]);
 	/*
 	 * Note: iommu_add_device() will fail here as
@@ -1773,7 +1773,7 @@ static bool pnv_pci_ioda_iommu_bypass_supported(struct pci_dev *pdev,
 		if (rc)
 			return rc;
 		/* 4GB offset bypasses 32-bit space */
-		set_dma_offset(&pdev->dev, (1ULL << 32));
+		pdev->dev.archdata.dma_offset = (1ULL << 32);
 		return true;
 	}
 
@@ -1788,7 +1788,7 @@ static void pnv_ioda_setup_bus_dma(struct pnv_ioda_pe *pe,
 
 	list_for_each_entry(dev, &bus->devices, bus_list) {
 		set_iommu_table_base(&dev->dev, pe->table_group.tables[0]);
-		set_dma_offset(&dev->dev, pe->tce_bypass_base);
+		dev->dev.archdata.dma_offset = pe->tce_bypass_base;
 		if (add_to_group)
 			iommu_add_device(&dev->dev);
 
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 8965d174c53b..a2ff20d154fe 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -1197,7 +1197,6 @@ static bool iommu_bypass_supported_pSeriesLP(struct pci_dev *pdev, u64 dma_mask)
 {
 	struct device_node *dn = pci_device_to_OF_node(pdev), *pdn;
 	const __be32 *dma_window = NULL;
-	u64 dma_offset;
 
 	/* only attempt to use a new window if 64-bit DMA is requested */
 	if (dma_mask < DMA_BIT_MASK(64))
@@ -1219,11 +1218,9 @@ static bool iommu_bypass_supported_pSeriesLP(struct pci_dev *pdev, u64 dma_mask)
 	}
 
 	if (pdn && PCI_DN(pdn)) {
-		dma_offset = enable_ddw(pdev, pdn);
-		if (dma_offset != 0) {
-			set_dma_offset(&pdev->dev, dma_offset);
+		pdev->dev.archdata.dma_offset = enable_ddw(pdev, pdn);
+		if (pdev->dev.archdata.dma_offset)
 			return true;
-		}
 	}
 
 	return false;
diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c
index e7d1645a2d2e..21d7e8a30aea 100644
--- a/arch/powerpc/sysdev/dart_iommu.c
+++ b/arch/powerpc/sysdev/dart_iommu.c
@@ -386,7 +386,7 @@ static bool dart_device_on_pcie(struct device *dev)
 static void pci_dma_dev_setup_dart(struct pci_dev *dev)
 {
 	if (dart_is_u4 && dart_device_on_pcie(&dev->dev))
-		set_dma_offset(&dev->dev, DART_U4_BYPASS_BASE);
+		dev->dev.archdata.dma_offset = DART_U4_BYPASS_BASE;
 	set_iommu_table_base(&dev->dev, &iommu_table_dart);
 }
 
diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index cb91a3d113d1..d6b7c91a9ce2 100644
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -141,7 +141,7 @@ static int fsl_pci_dma_set_mask(struct device *dev, u64 dma_mask)
 	 */
 	if (dev_is_pci(dev) && dma_mask >= pci64_dma_offset * 2 - 1) {
 		dev->bus_dma_mask = 0;
-		set_dma_offset(dev, pci64_dma_offset);
+		dev->archdata.dma_offset = pci64_dma_offset;
 	}
 
 	return 0;
diff --git a/drivers/misc/cxl/vphb.c b/drivers/misc/cxl/vphb.c
index 49da2f744bbf..f0645ba1d728 100644
--- a/drivers/misc/cxl/vphb.c
+++ b/drivers/misc/cxl/vphb.c
@@ -44,7 +44,7 @@ static bool cxl_pci_enable_device_hook(struct pci_dev *dev)
 	}
 
 	set_dma_ops(&dev->dev, &dma_nommu_ops);
-	set_dma_offset(&dev->dev, PAGE_OFFSET);
+	dev->dev.archdata.dma_offset = PAGE_OFFSET;
 
 	/*
 	 * Allocate a context to do cxl things too.  If we eventually do real
-- 
2.19.0


  parent reply	other threads:[~2018-10-09 13:26 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-09 13:24 use generic DMA mapping code in powerpc V3 Christoph Hellwig
2018-10-09 13:24 ` [PATCH 01/33] powerpc: use mm zones more sensibly Christoph Hellwig
2018-10-15  0:47   ` Benjamin Herrenschmidt
2018-10-09 13:24 ` [PATCH 02/33] powerpc/dma: remove the unused ARCH_HAS_DMA_MMAP_COHERENT define Christoph Hellwig
2018-10-09 13:24 ` [PATCH 03/33] powerpc/dma: remove the unused ISA_DMA_THRESHOLD export Christoph Hellwig
2018-10-09 13:24 ` [PATCH 04/33] powerpc/dma: remove the unused dma_iommu_ops export Christoph Hellwig
2018-10-09 13:24 ` [PATCH 05/33] powerpc/dma: split the two __dma_alloc_coherent implementations Christoph Hellwig
2018-10-09 13:24 ` [PATCH 06/33] powerpc/dma: remove the no-op dma_nommu_unmap_{page,sg} routines Christoph Hellwig
2018-10-09 13:24 ` [PATCH 07/33] powerpc/dma: untangle vio_dma_mapping_ops from dma_iommu_ops Christoph Hellwig
2018-10-09 13:24 ` [PATCH 08/33] powerpc/dma: handle iommu bypass in dma_iommu_ops Christoph Hellwig
2018-10-09 13:24 ` [PATCH 09/33] powerpc/pseries: unwind dma_get_required_mask_pSeriesLP a bit Christoph Hellwig
2018-10-09 13:24 ` [PATCH 10/33] powerpc/pseries: use the generic iommu bypass code Christoph Hellwig
2018-10-09 13:24 ` [PATCH 11/33] powerpc/cell: move dma direct window setup out of dma_configure Christoph Hellwig
2018-10-09 13:24 ` [PATCH 12/33] powerpc/cell: use the generic iommu bypass code Christoph Hellwig
2018-10-09 13:24 ` [PATCH 13/33] powerpc/dart: remove dead cleanup code in iommu_init_early_dart Christoph Hellwig
2018-10-09 13:24 ` [PATCH 14/33] powerpc/dart: use the generic iommu bypass code Christoph Hellwig
2018-10-09 13:24 ` [PATCH 15/33] powerpc/powernv: remove pnv_pci_ioda_pe_single_vendor Christoph Hellwig
2018-10-09 13:24 ` [PATCH 16/33] powerpc/powernv: remove dead npu-dma code Christoph Hellwig
2018-10-15  1:34   ` Alexey Kardashevskiy
2018-10-15  2:45     ` Benjamin Herrenschmidt
2018-10-15  5:50     ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 17/33] powerpc/powernv: use the generic iommu bypass code Christoph Hellwig
2018-10-09 13:24 ` [PATCH 18/33] powerpc/dma: stop overriding dma_get_required_mask Christoph Hellwig
2018-10-09 13:24 ` [PATCH 19/33] powerpc/pci: remove the dma_set_mask pci_controller ops methods Christoph Hellwig
2018-10-09 13:24 ` [PATCH 20/33] powerpc/dma: remove the iommu fallback for coherent allocations Christoph Hellwig
2018-10-09 13:24 ` [PATCH 21/33] powerpc/dma: remove get_pci_dma_ops Christoph Hellwig
2018-10-09 13:24 ` [PATCH 22/33] powerpc/dma: move pci_dma_dev_setup_swiotlb to fsl_pci.c Christoph Hellwig
2018-10-09 13:24 ` [PATCH 23/33] powerpc/dma: remove max_direct_dma_addr Christoph Hellwig
2018-10-09 13:24 ` [PATCH 24/33] powerpc/dma: fix an off-by-one in dma_capable Christoph Hellwig
2018-10-09 13:24 ` [PATCH 25/33] cxl: drop the dma_set_mask callback from vphb Christoph Hellwig
2018-10-09 13:24 ` [PATCH 26/33] powerpc/fsl_pci: simplify fsl_pci_dma_set_mask Christoph Hellwig
2018-10-09 13:24 ` [PATCH 27/33] dma-mapping, powerpc: simplify the arch dma_set_mask override Christoph Hellwig
2018-10-09 13:24 ` [PATCH 28/33] powerpc/dma: use phys_to_dma instead of get_dma_offset Christoph Hellwig
2018-10-09 13:24 ` [PATCH 29/33] powerpc/dma: remove get_dma_offset Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig [this message]
2018-10-09 13:24 ` [PATCH 31/33] powerpc/dma: remove dma_nommu_mmap_coherent Christoph Hellwig
2018-10-09 13:24 ` [PATCH 32/33] powerpc/dma: use generic direct and swiotlb ops Christoph Hellwig
2018-10-09 13:25 ` [PATCH 33/33] powerpc/dma: trim the fat from <asm/dma-mapping.h> Christoph Hellwig

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