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authorLinus Torvalds <torvalds@linux-foundation.org>2008-10-11 10:09:45 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-11 10:09:45 -0700
commit7cc4e87f912bbefa440a51856b8d076e5d1f554a (patch)
tree1b8df8683f3de37d2e8211ffa8d151f60d59af62 /arch/arm/mach-iop13xx/include/mach/memory.h
parent5ba2f67afb02c5302b2898949ed6fc3b3d37dcf1 (diff)
parent69fc7eed5f56bce15b239e5110de2575a6970df4 (diff)
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (236 commits) [ARM] 5300/1: fixup spitz reset during boot [ARM] 5295/1: make ZONE_DMA optional [ARM] 5239/1: Palm Zire 72 power management support [ARM] 5298/1: Drop desc_handle_irq() [ARM] 5297/1: [KS8695] Fix two compile-time warnings [ARM] 5296/1: [KS8695] Replace macro's with trailing underscores. [ARM] pxa: allow multi-machine PCMCIA builds [ARM] pxa: add preliminary CPUFREQ support for PXA3xx [ARM] pxa: add missing ACCR bit definitions to pxa3xx-regs.h [ARM] pxa: rename cpu-pxa.c to cpufreq-pxa2xx.c [ARM] pxa/zylonite: add support for USB OHCI [ARM] ohci-pxa27x: use ioremap() and offset for register access [ARM] ohci-pxa27x: introduce pxa27x_clear_otgph() [ARM] ohci-pxa27x: use platform_get_{irq,resource} for the resource [ARM] ohci-pxa27x: move OHCI controller specific registers into the driver [ARM] ohci-pxa27x: introduce flags to avoid direct access to OHCI registers [ARM] pxa: move I2S register and bit definitions into pxa2xx-i2s.c [ARM] pxa: simplify DMA register definitions [ARM] pxa: make additional DCSR bits valid for PXA3xx [ARM] pxa: move i2c register and bit definitions into i2c-pxa.c ... Fixed up conflicts in arch/arm/mach-versatile/core.c sound/soc/pxa/pxa2xx-ac97.c sound/soc/pxa/pxa2xx-i2s.c manually.
Diffstat (limited to 'arch/arm/mach-iop13xx/include/mach/memory.h')
-rw-r--r--arch/arm/mach-iop13xx/include/mach/memory.h61
1 files changed, 39 insertions, 22 deletions
diff --git a/arch/arm/mach-iop13xx/include/mach/memory.h b/arch/arm/mach-iop13xx/include/mach/memory.h
index e8b59d8f1bb..b82602d529b 100644
--- a/arch/arm/mach-iop13xx/include/mach/memory.h
+++ b/arch/arm/mach-iop13xx/include/mach/memory.h
@@ -7,9 +7,6 @@
* Physical DRAM offset.
*/
#define PHYS_OFFSET UL(0x00000000)
-#define TASK_SIZE UL(0x3f000000)
-#define PAGE_OFFSET UL(0x40000000)
-#define TASK_UNMAPPED_BASE ((TASK_SIZE + 0x01000000) / 3)
#ifndef __ASSEMBLY__
@@ -29,32 +26,52 @@
/* RAM has 1:1 mapping on the PCIe/x Busses */
#define __virt_to_bus(x) (__virt_to_phys(x))
-#define __bus_to_virt(x) (__phys_to_virt(x))
+#define __bus_to_virt(x) (__phys_to_virt(x))
-#define virt_to_lbus(x) \
-(( ((void*)(x) >= (void*)IOP13XX_PMMR_V_START) && \
-((void*)(x) < (void*)IOP13XX_PMMR_V_END) ) ? \
-((x) - IOP13XX_PMMR_VIRT_MEM_BASE + IOP13XX_PMMR_PHYS_MEM_BASE) : \
-((x) - PAGE_OFFSET + PHYS_OFFSET))
+static inline dma_addr_t __virt_to_lbus(unsigned long x)
+{
+ return x + IOP13XX_PMMR_PHYS_MEM_BASE - IOP13XX_PMMR_VIRT_MEM_BASE;
+}
-#define lbus_to_virt(x) \
-(( ((x) >= IOP13XX_PMMR_P_START) && ((x) < IOP13XX_PMMR_P_END) ) ? \
-((x) - IOP13XX_PMMR_PHYS_MEM_BASE + IOP13XX_PMMR_VIRT_MEM_BASE ) : \
-((x) - PHYS_OFFSET + PAGE_OFFSET))
+static inline unsigned long __lbus_to_virt(dma_addr_t x)
+{
+ return x + IOP13XX_PMMR_VIRT_MEM_BASE - IOP13XX_PMMR_PHYS_MEM_BASE;
+}
+
+#define __is_lbus_dma(a) \
+ ((a) >= IOP13XX_PMMR_P_START && (a) < IOP13XX_PMMR_P_END)
+
+#define __is_lbus_virt(a) \
+ ((a) >= IOP13XX_PMMR_V_START && (a) < IOP13XX_PMMR_V_END)
/* Device is an lbus device if it is on the platform bus of the IOP13XX */
-#define is_lbus_device(dev) (dev &&\
- (strncmp(dev->bus->name, "platform", 8) == 0))
+#define is_lbus_device(dev) \
+ (dev && strncmp(dev->bus->name, "platform", 8) == 0)
-#define __arch_page_to_dma(dev, page) \
-({is_lbus_device(dev) ? (dma_addr_t)virt_to_lbus(page_address(page)) : \
-(dma_addr_t)__virt_to_bus(page_address(page));})
+#define __arch_dma_to_virt(dev, addr) \
+ ({ \
+ unsigned long __virt; \
+ dma_addr_t __dma = addr; \
+ if (is_lbus_device(dev) && __is_lbus_dma(__dma)) \
+ __virt = __lbus_to_virt(__dma); \
+ else \
+ __virt = __bus_to_virt(__dma); \
+ (void *)__virt; \
+ })
-#define __arch_dma_to_virt(dev, addr) \
-({is_lbus_device(dev) ? lbus_to_virt(addr) : __bus_to_virt(addr);})
+#define __arch_virt_to_dma(dev, addr) \
+ ({ \
+ unsigned long __virt = (unsigned long)addr; \
+ dma_addr_t __dma; \
+ if (is_lbus_device(dev) && __is_lbus_virt(__virt)) \
+ __dma = __virt_to_lbus(__virt); \
+ else \
+ __dma = __virt_to_bus(__virt); \
+ __dma; \
+ })
-#define __arch_virt_to_dma(dev, addr) \
-({is_lbus_device(dev) ? virt_to_lbus(addr) : __virt_to_bus(addr);})
+#define __arch_page_to_dma(dev, page) \
+ __arch_virt_to_dma(dev, page_address(page))
#endif /* CONFIG_ARCH_IOP13XX */
#endif /* !ASSEMBLY */