treewide: Move dma_ops from struct dev_archdata into struct device

Some but not all architectures provide set_dma_ops(). Move dma_ops
from struct dev_archdata into struct device such that it becomes
possible on all architectures to configure dma_ops per device.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Juergen Gross <jgross@suse.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-arch@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: Russell King <linux@armlinux.org.uk>
Cc: x86@kernel.org
Signed-off-by: Doug Ledford <dledford@redhat.com>

5 files changed, 9 insertions, 12 deletions

diff --git a/arch/x86/include/asm/device.h b/arch/x86/include/asm/device.h
index b2d0b4ced7e3..1b3ef26e77df 100644
--- a/arch/x86/include/asm/device.h
+++ b/arch/x86/include/asm/device.h
@@ -2,9 +2,6 @@
 #define _ASM_X86_DEVICE_H
 
 struct dev_archdata {
-#ifdef CONFIG_X86_DEV_DMA_OPS
-	const struct dma_map_ops *dma_ops;
-#endif
 #if defined(CONFIG_INTEL_IOMMU) || defined(CONFIG_AMD_IOMMU)
 	void *iommu; /* hook for IOMMU specific extension */
 #endif
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index 5e4772886a1e..94b5b96966cb 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -32,10 +32,10 @@ static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 #ifndef CONFIG_X86_DEV_DMA_OPS
 	return dma_ops;
 #else
-	if (unlikely(!dev) || !dev->archdata.dma_ops)
+	if (unlikely(!dev) || !dev->dma_ops)
 		return dma_ops;
 	else
-		return dev->archdata.dma_ops;
+		return dev->dma_ops;
 #endif
 }
 
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index 17f180148c80..5070320780c6 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -1177,7 +1177,7 @@ static int __init calgary_init(void)
 		tbl = find_iommu_table(&dev->dev);
 
 		if (translation_enabled(tbl))
-			dev->dev.archdata.dma_ops = &calgary_dma_ops;
+			dev->dev.dma_ops = &calgary_dma_ops;
 	}
 
 	return ret;
@@ -1201,7 +1201,7 @@ error:
 		calgary_disable_translation(dev);
 		calgary_free_bus(dev);
 		pci_dev_put(dev); /* Undo calgary_init_one()'s pci_dev_get() */
-		dev->dev.archdata.dma_ops = NULL;
+		dev->dev.dma_ops = NULL;
 	} while (1);
 
 	return ret;
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index a4fdfa7dcc1b..0cb52ae0a8f0 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -667,7 +667,7 @@ static void set_dma_domain_ops(struct pci_dev *pdev)
 	spin_lock(&dma_domain_list_lock);
 	list_for_each_entry(domain, &dma_domain_list, node) {
 		if (pci_domain_nr(pdev->bus) == domain->domain_nr) {
-			pdev->dev.archdata.dma_ops = domain->dma_ops;
+			pdev->dev.dma_ops = domain->dma_ops;
 			break;
 		}
 	}
diff --git a/arch/x86/pci/sta2x11-fixup.c b/arch/x86/pci/sta2x11-fixup.c
index aa3828823170..ec008e800b45 100644
--- a/arch/x86/pci/sta2x11-fixup.c
+++ b/arch/x86/pci/sta2x11-fixup.c
@@ -203,7 +203,7 @@ static void sta2x11_setup_pdev(struct pci_dev *pdev)
 		return;
 	pci_set_consistent_dma_mask(pdev, STA2X11_AMBA_SIZE - 1);
 	pci_set_dma_mask(pdev, STA2X11_AMBA_SIZE - 1);
-	pdev->dev.archdata.dma_ops = &sta2x11_dma_ops;
+	pdev->dev.dma_ops = &sta2x11_dma_ops;
 
 	/* We must enable all devices as master, for audio DMA to work */
 	pci_set_master(pdev);
@@ -223,7 +223,7 @@ bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 {
 	struct sta2x11_mapping *map;
 
-	if (dev->archdata.dma_ops != &sta2x11_dma_ops) {
+	if (dev->dma_ops != &sta2x11_dma_ops) {
 		if (!dev->dma_mask)
 			return false;
 		return addr + size - 1 <= *dev->dma_mask;
@@ -247,7 +247,7 @@ bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
  */
 dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
 {
-	if (dev->archdata.dma_ops != &sta2x11_dma_ops)
+	if (dev->dma_ops != &sta2x11_dma_ops)
 		return paddr;
 	return p2a(paddr, to_pci_dev(dev));
 }
@@ -259,7 +259,7 @@ dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
  */
 phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
 {
-	if (dev->archdata.dma_ops != &sta2x11_dma_ops)
+	if (dev->dma_ops != &sta2x11_dma_ops)
 		return daddr;
 	return a2p(daddr, to_pci_dev(dev));
 }