On Thu, Jun 12, 2008 at 10:02:06AM +0100, Ralf Baechle wrote: I cleaned the numerals for the DMA constants with below patch which now is in the 2.6.27 patch queue. Ralf From: Ralf Baechle <ralf@xxxxxxxxxxxxxx> [MIPS] Alchemy, PNX: Use symbolic constants for DMA masks. Signed-off-by: Ralf Baechle <ralf@xxxxxxxxxxxxxx> arch/mips/au1000/common/platform.c | 29 +++++++++++++++-------------- arch/mips/au1000/pb1200/platform.c | 5 +++-- arch/mips/nxp/pnx8550/common/platform.c | 9 +++++---- 3 files changed, 23 insertions(+), 20 deletions(-) Index: linux-queue/arch/mips/au1000/common/platform.c =================================================================== --- linux-queue.orig/arch/mips/au1000/common/platform.c +++ linux-queue/arch/mips/au1000/common/platform.c @@ -11,6 +11,7 @@ * warranty of any kind, whether express or implied. */ +#include <linux/dma-mapping.h> #include <linux/platform_device.h> #include <linux/serial_8250.h> #include <linux/init.h> @@ -77,14 +78,14 @@ static struct resource au1xxx_usb_ohci_r }; /* The dmamask must be set for OHCI to work */ -static u64 ohci_dmamask = ~(u32)0; +static u64 ohci_dmamask = DMA_32BIT_MASK; static struct platform_device au1xxx_usb_ohci_device = { .name = "au1xxx-ohci", .id = 0, .dev = { .dma_mask = &ohci_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_32BIT_MASK, }, .num_resources = ARRAY_SIZE(au1xxx_usb_ohci_resources), .resource = au1xxx_usb_ohci_resources, @@ -106,14 +107,14 @@ static struct resource au1100_lcd_resour } }; -static u64 au1100_lcd_dmamask = ~(u32)0; +static u64 au1100_lcd_dmamask = DMA_32BIT_MASK; static struct platform_device au1100_lcd_device = { .name = "au1100-lcd", .id = 0, .dev = { .dma_mask = &au1100_lcd_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_32BIT_MASK, }, .num_resources = ARRAY_SIZE(au1100_lcd_resources), .resource = au1100_lcd_resources, @@ -135,14 +136,14 @@ static struct resource au1xxx_usb_ehci_r }, }; -static u64 ehci_dmamask = ~(u32)0; +static u64 ehci_dmamask = DMA_32BIT_MASK; static struct platform_device au1xxx_usb_ehci_device = { .name = "au1xxx-ehci", .id = 0, .dev = { .dma_mask = &ehci_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_32BIT_MASK, }, .num_resources = ARRAY_SIZE(au1xxx_usb_ehci_resources), .resource = au1xxx_usb_ehci_resources, @@ -180,14 +181,14 @@ static struct resource au1xxx_mmc_resour } }; -static u64 udc_dmamask = ~(u32)0; +static u64 udc_dmamask = DMA_32BIT_MASK; static struct platform_device au1xxx_usb_gdt_device = { .name = "au1xxx-udc", .id = 0, .dev = { .dma_mask = &udc_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_32BIT_MASK, }, .num_resources = ARRAY_SIZE(au1xxx_usb_gdt_resources), .resource = au1xxx_usb_gdt_resources, @@ -207,14 +208,14 @@ static struct resource au1xxx_usb_otg_re }, }; -static u64 uoc_dmamask = ~(u32)0; +static u64 uoc_dmamask = DMA_32BIT_MASK; static struct platform_device au1xxx_usb_otg_device = { .name = "au1xxx-uoc", .id = 0, .dev = { .dma_mask = &uoc_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_32BIT_MASK, }, .num_resources = ARRAY_SIZE(au1xxx_usb_otg_resources), .resource = au1xxx_usb_otg_resources, @@ -233,27 +234,27 @@ static struct resource au1200_lcd_resour } }; -static u64 au1200_lcd_dmamask = ~(u32)0; +static u64 au1200_lcd_dmamask = DMA_32BIT_MASK; static struct platform_device au1200_lcd_device = { .name = "au1200-lcd", .id = 0, .dev = { .dma_mask = &au1200_lcd_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_32BIT_MASK, }, .num_resources = ARRAY_SIZE(au1200_lcd_resources), .resource = au1200_lcd_resources, }; -static u64 au1xxx_mmc_dmamask = ~(u32)0; +static u64 au1xxx_mmc_dmamask = DMA_32BIT_MASK; static struct platform_device au1xxx_mmc_device = { .name = "au1xxx-mmc", .id = 0, .dev = { .dma_mask = &au1xxx_mmc_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_32BIT_MASK, }, .num_resources = ARRAY_SIZE(au1xxx_mmc_resources), .resource = au1xxx_mmc_resources, Index: linux-queue/arch/mips/au1000/pb1200/platform.c =================================================================== --- linux-queue.orig/arch/mips/au1000/pb1200/platform.c +++ linux-queue/arch/mips/au1000/pb1200/platform.c @@ -18,6 +18,7 @@ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ +#include <linux/dma-mapping.h> #include <linux/init.h> #include <linux/platform_device.h> @@ -36,14 +37,14 @@ static struct resource ide_resources[] = } }; -static u64 ide_dmamask = ~(u32)0; +static u64 ide_dmamask = DMA_32BIT_MASK; static struct platform_device ide_device = { .name = "au1200-ide", .id = 0, .dev = { .dma_mask = &ide_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_32BIT_MASK, }, .num_resources = ARRAY_SIZE(ide_resources), .resource = ide_resources Index: linux-queue/arch/mips/nxp/pnx8550/common/platform.c =================================================================== --- linux-queue.orig/arch/mips/nxp/pnx8550/common/platform.c +++ linux-queue/arch/mips/nxp/pnx8550/common/platform.c @@ -13,6 +13,7 @@ * warranty of any kind, whether express or implied. */ #include <linux/device.h> +#include <linux/dma-mapping.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/resource.h> @@ -91,16 +92,16 @@ struct pnx8xxx_port pnx8xxx_ports[] = { }; /* The dmamask must be set for OHCI to work */ -static u64 ohci_dmamask = ~(u32)0; +static u64 ohci_dmamask = DMA_32BIT_MASK; -static u64 uart_dmamask = ~(u32)0; +static u64 uart_dmamask = DMA_32BIT_MASK; static struct platform_device pnx8550_usb_ohci_device = { .name = "pnx8550-ohci", .id = -1, .dev = { .dma_mask = &ohci_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_32BIT_MASK, }, .num_resources = ARRAY_SIZE(pnx8550_usb_ohci_resources), .resource = pnx8550_usb_ohci_resources, @@ -111,7 +112,7 @@ static struct platform_device pnx8550_ua .id = -1, .dev = { .dma_mask = &uart_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_32BIT_MASK, .platform_data = pnx8xxx_ports, }, .num_resources = ARRAY_SIZE(pnx8550_uart_resources),