X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-arm%2Fpage.h;h=45be829fe44cb936029cf4229105259ae3a9c37e;hb=refs%2Fheads%2Fvserver;hp=4ca3a8e9348f53becec9d7969d8c73d0f64a3d3a;hpb=6a77f38946aaee1cd85eeec6cf4229b204c15071;p=linux-2.6.git diff --git a/include/asm-arm/page.h b/include/asm-arm/page.h index 4ca3a8e93..45be829fe 100644 --- a/include/asm-arm/page.h +++ b/include/asm-arm/page.h @@ -10,20 +10,25 @@ #ifndef _ASMARM_PAGE_H #define _ASMARM_PAGE_H -#include + +#ifdef __KERNEL__ /* PAGE_SHIFT determines the page size */ #define PAGE_SHIFT 12 #define PAGE_SIZE (1UL << PAGE_SHIFT) #define PAGE_MASK (~(PAGE_SIZE-1)) -#ifdef __KERNEL__ - /* to align the pointer to the (next) page boundary */ #define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) #ifndef __ASSEMBLY__ +#ifndef CONFIG_MMU + +#include "page-nommu.h" + +#else + #include /* @@ -40,6 +45,7 @@ * v4wb - ARMv4 with writeback cache, without minicache * v4_mc - ARMv4 with minicache * xscale - Xscale + * xsc3 - XScalev3 */ #undef _USER #undef MULTI_USER @@ -84,6 +90,14 @@ # endif #endif +#ifdef CONFIG_CPU_XSC3 +# ifdef _USER +# define MULTI_USER 1 +# else +# define _USER xsc3_mc +# endif +#endif + #ifdef CONFIG_CPU_COPY_V6 # define MULTI_USER 1 #endif @@ -114,19 +128,8 @@ extern void __cpu_copy_user_page(void *to, const void *from, unsigned long user); #endif -#define clear_user_page(addr,vaddr,pg) \ - do { \ - preempt_disable(); \ - __cpu_clear_user_page(addr, vaddr); \ - preempt_enable(); \ - } while (0) - -#define copy_user_page(to,from,vaddr,pg) \ - do { \ - preempt_disable(); \ - __cpu_copy_user_page(to, from, vaddr); \ - preempt_enable(); \ - } while (0) +#define clear_user_page(addr,vaddr,pg) __cpu_clear_user_page(addr, vaddr) +#define copy_user_page(to,from,vaddr,pg) __cpu_copy_user_page(to, from, vaddr) #define clear_page(page) memzero((void *)(page), PAGE_SIZE) extern void copy_page(void *to, const void *from); @@ -171,19 +174,7 @@ typedef unsigned long pgprot_t; #endif /* STRICT_MM_TYPECHECKS */ -/* Pure 2^n version of get_order */ -static inline int get_order(unsigned long size) -{ - int order; - - size = (size-1) >> (PAGE_SHIFT-1); - order = -1; - do { - size >>= 1; - order++; - } while (size); - return order; -} +#endif /* CONFIG_MMU */ #include @@ -192,6 +183,17 @@ static inline int get_order(unsigned long size) #define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \ VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) +/* + * With EABI on ARMv5 and above we must have 64-bit aligned slab pointers. + */ +#if defined(CONFIG_AEABI) && (__LINUX_ARM_ARCH__ >= 5) +#define ARCH_SLAB_MINALIGN 8 +#endif + +#include + +#define devmem_is_allowed(x) 1 + #endif /* __KERNEL__ */ #endif