diff options
author | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2010-03-11 02:23:40 +0300 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-13 02:52:42 +0300 |
commit | 6fee48cd330c68332f9712bc968d934a1a84a32a (patch) | |
tree | aaa9b904e612668a46ed4eac64f45c6fde71b45e /arch/arm | |
parent | 6e6c70e6910d21443ab0f894bab52b9ea653ef27 (diff) | |
download | linux-6fee48cd330c68332f9712bc968d934a1a84a32a.tar.xz |
dma-mapping: arm: use generic pci_set_dma_mask and pci_set_consistent_dma_mask
This converts arm to the generic pci_set_dma_mask and
pci_set_consistent_dma_mask (removes HAVE_ARCH_PCI_SET_DMA_MASK for
dmabounce).
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Looked-over-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Greg KH <greg@kroah.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/arm')
-rw-r--r-- | arch/arm/common/it8152.c | 27 | ||||
-rw-r--r-- | arch/arm/include/asm/dma-mapping.h | 8 | ||||
-rw-r--r-- | arch/arm/mach-ixp4xx/common-pci.c | 26 | ||||
-rw-r--r-- | arch/arm/mach-ixp4xx/include/mach/hardware.h | 5 | ||||
-rw-r--r-- | arch/arm/mach-pxa/include/mach/hardware.h | 1 |
5 files changed, 8 insertions, 59 deletions
diff --git a/arch/arm/common/it8152.c b/arch/arm/common/it8152.c index 2793447621c3..ee1d3b85eb65 100644 --- a/arch/arm/common/it8152.c +++ b/arch/arm/common/it8152.c @@ -272,33 +272,6 @@ int dma_needs_bounce(struct device *dev, dma_addr_t dma_addr, size_t size) ((dma_addr + size - PHYS_OFFSET) >= SZ_64M); } -/* - * We override these so we properly do dmabounce otherwise drivers - * are able to set the dma_mask to 0xffffffff and we can no longer - * trap bounces. :( - * - * We just return true on everyhing except for < 64MB in which case - * we will fail miseralby and die since we can't handle that case. - */ -int pci_set_dma_mask(struct pci_dev *dev, u64 mask) -{ - dev_dbg(&dev->dev, "%s: %llx\n", __func__, mask); - if (mask >= PHYS_OFFSET + SZ_64M - 1) - return 0; - - return -EIO; -} - -int -pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask) -{ - dev_dbg(&dev->dev, "%s: %llx\n", __func__, mask); - if (mask >= PHYS_OFFSET + SZ_64M - 1) - return 0; - - return -EIO; -} - 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 256ee1c9f51a..69ce0727edb5 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -128,6 +128,14 @@ static inline int dma_supported(struct device *dev, u64 mask) static inline int dma_set_mask(struct device *dev, u64 dma_mask) { +#ifdef CONFIG_DMABOUNCE + if (dev->archdata.dmabounce) { + if (dma_mask >= ISA_DMA_THRESHOLD) + return 0; + else + return -EIO; + } +#endif if (!dev->dma_mask || !dma_supported(dev, dma_mask)) return -EIO; diff --git a/arch/arm/mach-ixp4xx/common-pci.c b/arch/arm/mach-ixp4xx/common-pci.c index c4a01594c761..e3181534c7f9 100644 --- a/arch/arm/mach-ixp4xx/common-pci.c +++ b/arch/arm/mach-ixp4xx/common-pci.c @@ -502,32 +502,6 @@ struct pci_bus * __devinit ixp4xx_scan_bus(int nr, struct pci_sys_data *sys) return pci_scan_bus(sys->busnr, &ixp4xx_ops, sys); } -/* - * We override these so we properly do dmabounce otherwise drivers - * are able to set the dma_mask to 0xffffffff and we can no longer - * trap bounces. :( - * - * We just return true on everyhing except for < 64MB in which case - * we will fail miseralby and die since we can't handle that case. - */ -int -pci_set_dma_mask(struct pci_dev *dev, u64 mask) -{ - if (mask >= SZ_64M - 1 ) - return 0; - - return -EIO; -} - -int -pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask) -{ - if (mask >= SZ_64M - 1 ) - return 0; - - return -EIO; -} - EXPORT_SYMBOL(ixp4xx_pci_read); EXPORT_SYMBOL(ixp4xx_pci_write); diff --git a/arch/arm/mach-ixp4xx/include/mach/hardware.h b/arch/arm/mach-ixp4xx/include/mach/hardware.h index f9d1c43e4a54..f91ca6d4fbe8 100644 --- a/arch/arm/mach-ixp4xx/include/mach/hardware.h +++ b/arch/arm/mach-ixp4xx/include/mach/hardware.h @@ -26,11 +26,6 @@ #define PCIBIOS_MAX_MEM 0x4BFFFFFF #endif -/* - * We override the standard dma-mask routines for bouncing. - */ -#define HAVE_ARCH_PCI_SET_DMA_MASK - #define pcibios_assign_all_busses() 1 /* Register locations and bits */ diff --git a/arch/arm/mach-pxa/include/mach/hardware.h b/arch/arm/mach-pxa/include/mach/hardware.h index e741bf1bfb2d..7515757d6911 100644 --- a/arch/arm/mach-pxa/include/mach/hardware.h +++ b/arch/arm/mach-pxa/include/mach/hardware.h @@ -314,7 +314,6 @@ extern unsigned long get_clock_tick_rate(void); #define PCIBIOS_MIN_IO 0 #define PCIBIOS_MIN_MEM 0 #define pcibios_assign_all_busses() 1 -#define HAVE_ARCH_PCI_SET_DMA_MASK 1 #endif |