diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sparc/Kconfig | 1 | ||||
| -rw-r--r-- | arch/sparc/include/asm/dma-mapping.h | 6 | ||||
| -rw-r--r-- | arch/sparc/kernel/Makefile | 2 | ||||
| -rw-r--r-- | arch/sparc/kernel/dma.c | 37 | ||||
| -rw-r--r-- | arch/sparc/kernel/ioport.c | 27 |
5 files changed, 39 insertions, 34 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index 5f2df99645c9..233cff53a623 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -26,6 +26,7 @@ config SPARC select RTC_CLASS select RTC_DRV_M48T59 select HAVE_DMA_ATTRS + select HAVE_DMA_API_DEBUG config SPARC32 def_bool !64BIT diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h index 2677818dc781..5a8c308e2b5c 100644 --- a/arch/sparc/include/asm/dma-mapping.h +++ b/arch/sparc/include/asm/dma-mapping.h @@ -32,8 +32,11 @@ static inline void *dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag) { struct dma_map_ops *ops = get_dma_ops(dev); + void *cpu_addr; - return ops->alloc_coherent(dev, size, dma_handle, flag); + cpu_addr = ops->alloc_coherent(dev, size, dma_handle, flag); + debug_dma_alloc_coherent(dev, size, *dma_handle, cpu_addr); + return cpu_addr; } static inline void dma_free_coherent(struct device *dev, size_t size, @@ -41,6 +44,7 @@ static inline void dma_free_coherent(struct device *dev, size_t size, { struct dma_map_ops *ops = get_dma_ops(dev); + debug_dma_free_coherent(dev, size, cpu_addr, dma_handle); ops->free_coherent(dev, size, cpu_addr, dma_handle); } diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile index 475ce4696acd..29b88a580661 100644 --- a/arch/sparc/kernel/Makefile +++ b/arch/sparc/kernel/Makefile @@ -61,7 +61,7 @@ obj-$(CONFIG_SPARC64_SMP) += cpumap.o obj-$(CONFIG_SPARC32) += devres.o devres-y := ../../../kernel/irq/devres.o -obj-$(CONFIG_SPARC32) += dma.o +obj-y += dma.o obj-$(CONFIG_SPARC32_PCI) += pcic.o diff --git a/arch/sparc/kernel/dma.c b/arch/sparc/kernel/dma.c index b2fa3127f605..e1ba8ee21b9a 100644 --- a/arch/sparc/kernel/dma.c +++ b/arch/sparc/kernel/dma.c @@ -1,40 +1,13 @@ -/* dma.c: PCI and SBUS DMA accessors for 32-bit sparc. - * - * Copyright (C) 2008 David S. Miller <davem@davemloft.net> - */ - #include <linux/kernel.h> #include <linux/module.h> #include <linux/dma-mapping.h> -#include <linux/scatterlist.h> -#include <linux/mm.h> +#include <linux/dma-debug.h> -#ifdef CONFIG_PCI -#include <linux/pci.h> -#endif +#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 15) -/* - * Return whether the given PCI device DMA address mask can be - * supported properly. For example, if your device can only drive the - * low 24-bits during PCI bus mastering, then you would pass - * 0x00ffffff as the mask to this function. - */ -int dma_supported(struct device *dev, u64 mask) +static int __init dma_init(void) { -#ifdef CONFIG_PCI - if (dev->bus == &pci_bus_type) - return 1; -#endif + dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES); return 0; } -EXPORT_SYMBOL(dma_supported); - -int dma_set_mask(struct device *dev, u64 dma_mask) -{ -#ifdef CONFIG_PCI - if (dev->bus == &pci_bus_type) - return pci_set_dma_mask(to_pci_dev(dev), dma_mask); -#endif - return -EOPNOTSUPP; -} -EXPORT_SYMBOL(dma_set_mask); +fs_initcall(dma_init); diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c index 1eb604389655..edbea232c617 100644 --- a/arch/sparc/kernel/ioport.c +++ b/arch/sparc/kernel/ioport.c @@ -654,6 +654,33 @@ EXPORT_SYMBOL(pci32_dma_ops); #endif /* CONFIG_PCI */ +/* + * Return whether the given PCI device DMA address mask can be + * supported properly. For example, if your device can only drive the + * low 24-bits during PCI bus mastering, then you would pass + * 0x00ffffff as the mask to this function. + */ +int dma_supported(struct device *dev, u64 mask) +{ +#ifdef CONFIG_PCI + if (dev->bus == &pci_bus_type) + return 1; +#endif + return 0; +} +EXPORT_SYMBOL(dma_supported); + +int dma_set_mask(struct device *dev, u64 dma_mask) +{ +#ifdef CONFIG_PCI + if (dev->bus == &pci_bus_type) + return pci_set_dma_mask(to_pci_dev(dev), dma_mask); +#endif + return -EOPNOTSUPP; +} +EXPORT_SYMBOL(dma_set_mask); + + #ifdef CONFIG_PROC_FS static int |
