From: Russell King Date: Sun, 5 Sep 2010 11:19:50 +0000 (+0100) Subject: Revert "[ARM] pxa: remove now unnecessary dma_needs_bounce()" X-Git-Tag: firefly_0821_release~9833^2~590^2~5 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=0485e18bc4112a3b548baa314c24bfbece4d156b;p=firefly-linux-kernel-4.4.55.git Revert "[ARM] pxa: remove now unnecessary dma_needs_bounce()" This reverts commit 4fa5518, which causes a compilation regression for IXP4xx platforms. Reported-by: Richard Cochran Acked-by: Eric Miao Signed-off-by: Russell King --- diff --git a/arch/arm/common/it8152.c b/arch/arm/common/it8152.c index 6c0913562455..7974baacafce 100644 --- a/arch/arm/common/it8152.c +++ b/arch/arm/common/it8152.c @@ -263,6 +263,14 @@ static int it8152_pci_platform_notify_remove(struct device *dev) return 0; } +int dma_needs_bounce(struct device *dev, dma_addr_t dma_addr, size_t size) +{ + dev_dbg(dev, "%s: dma_addr %08x, size %08x\n", + __func__, dma_addr, size); + return (dev->bus == &pci_bus_type) && + ((dma_addr + size - PHYS_OFFSET) >= SZ_64M); +} + int __init it8152_pci_setup(int nr, struct pci_sys_data *sys) { it8152_io.start = IT8152_IO_BASE + 0x12000; diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index c226fe10553e..c568da7dcae4 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -288,15 +288,7 @@ extern void dmabounce_unregister_dev(struct device *); * DMA access and 1 if the buffer needs to be bounced. * */ -#ifdef CONFIG_SA1111 extern int dma_needs_bounce(struct device*, dma_addr_t, size_t); -#else -static inline int dma_needs_bounce(struct device *dev, dma_addr_t addr, - size_t size) -{ - return 0; -} -#endif /* * The DMA API, implemented by dmabounce.c. See below for descriptions.