/* * linux/arch/unicore32/include/asm/io.h * * Code specific to PKUnity SoC and UniCore ISA * * Copyright (C) 2001-2010 GUAN Xue-tao * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #ifndef __UNICORE_IO_H__ #define __UNICORE_IO_H__ #ifdef __KERNEL__ #include <asm/byteorder.h> #include <asm/memory.h> #define PCI_IOBASE PKUNITY_PCILIO_BASE #include <asm-generic/io.h> /* * __uc32_ioremap and __uc32_ioremap_cached takes CPU physical address. */ extern void __iomem *__uc32_ioremap(unsigned long, size_t); extern void __iomem *__uc32_ioremap_cached(unsigned long, size_t); extern void __uc32_iounmap(volatile void __iomem *addr); /* * ioremap and friends. * * ioremap takes a PCI memory address, as specified in * Documentation/io-mapping.txt. * */ #define ioremap(cookie, size) __uc32_ioremap(cookie, size) #define ioremap_cached(cookie, size) __uc32_ioremap_cached(cookie, size) #define ioremap_nocache(cookie, size) __uc32_ioremap(cookie, size) #define iounmap(cookie) __uc32_iounmap(cookie) #define readb_relaxed readb #define readw_relaxed readw #define readl_relaxed readl #define HAVE_ARCH_PIO_SIZE #define PIO_OFFSET (unsigned int)(PCI_IOBASE) #define PIO_MASK (unsigned int)(IO_SPACE_LIMIT) #define PIO_RESERVED (PIO_OFFSET + PIO_MASK + 1) #ifdef CONFIG_STRICT_DEVMEM #include <linux/ioport.h> #include <linux/mm.h> /* * devmem_is_allowed() checks to see if /dev/mem access to a certain * address is valid. The argument is a physical page number. * We mimic x86 here by disallowing access to system RAM as well as * device-exclusive MMIO regions. This effectively disable read()/write() * on /dev/mem. */ static inline int devmem_is_allowed(unsigned long pfn) { if (iomem_is_exclusive(pfn << PAGE_SHIFT)) return 0; if (!page_is_ram(pfn)) return 1; return 0; } #endif /* CONFIG_STRICT_DEVMEM */ #endif /* __KERNEL__ */ #endif /* __UNICORE_IO_H__ */
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assembler.h | File | 2.71 KB | 0644 |
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barrier.h | File | 602 B | 0644 |
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bitops.h | File | 1.19 KB | 0644 |
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bug.h | File | 632 B | 0644 |
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cache.h | File | 805 B | 0644 |
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cacheflush.h | File | 6.46 KB | 0644 |
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checksum.h | File | 978 B | 0644 |
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cmpxchg.h | File | 1.43 KB | 0644 |
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cpu-single.h | File | 1.18 KB | 0644 |
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cputype.h | File | 787 B | 0644 |
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delay.h | File | 1.53 KB | 0644 |
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dma-mapping.h | File | 1.11 KB | 0644 |
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dma.h | File | 531 B | 0644 |
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elf.h | File | 2.58 KB | 0644 |
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fpstate.h | File | 550 B | 0644 |
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fpu-ucf64.h | File | 1.32 KB | 0644 |
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gpio.h | File | 2.75 KB | 0644 |
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hwcap.h | File | 773 B | 0644 |
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hwdef-copro.h | File | 1.3 KB | 0644 |
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io.h | File | 2 KB | 0644 |
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irq.h | File | 2.56 KB | 0644 |
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irqflags.h | File | 1.03 KB | 0644 |
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linkage.h | File | 524 B | 0644 |
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memblock.h | File | 1.1 KB | 0644 |
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memory.h | File | 3.16 KB | 0644 |
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mmu.h | File | 430 B | 0644 |
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mmu_context.h | File | 2.76 KB | 0644 |
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page.h | File | 1.89 KB | 0644 |
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pci.h | File | 578 B | 0644 |
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pgalloc.h | File | 2.47 KB | 0644 |
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pgtable-hwdef.h | File | 1.3 KB | 0644 |
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pgtable.h | File | 9.42 KB | 0644 |
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processor.h | File | 1.98 KB | 0644 |
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ptrace.h | File | 1.37 KB | 0644 |
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stacktrace.h | File | 787 B | 0644 |
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string.h | File | 994 B | 0644 |
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suspend.h | File | 667 B | 0644 |
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switch_to.h | File | 901 B | 0644 |
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thread_info.h | File | 3.29 KB | 0644 |
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timex.h | File | 767 B | 0644 |
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tlb.h | File | 781 B | 0644 |
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tlbflush.h | File | 5.53 KB | 0644 |
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traps.h | File | 627 B | 0644 |
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uaccess.h | File | 1.33 KB | 0644 |
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