From 6bc9a3966f0395419b09b2ec90f89f7f00341b37 Mon Sep 17 00:00:00 2001 From: Chen Liqin Date: Fri, 12 Jun 2009 22:01:00 +0800 Subject: score: Add support for Sunplus S+core architecture This is the complete set of new arch Score's files for linux. Score instruction set support 16bits, 32bits and 64bits instruction, Score SOC had been used in game machine and LCD TV. Signed-off-by: Chen Liqin Signed-off-by: Arnd Bergmann --- arch/score/include/asm/page.h | 92 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 92 insertions(+) create mode 100644 arch/score/include/asm/page.h (limited to 'arch/score/include/asm/page.h') diff --git a/arch/score/include/asm/page.h b/arch/score/include/asm/page.h new file mode 100644 index 00000000000..67e98206be6 --- /dev/null +++ b/arch/score/include/asm/page.h @@ -0,0 +1,92 @@ +#ifndef _ASM_SCORE_PAGE_H +#define _ASM_SCORE_PAGE_H + +#include + +/* PAGE_SHIFT determines the page size */ +#define PAGE_SHIFT (12) +#define PAGE_SIZE (1UL << PAGE_SHIFT) +#define PAGE_MASK (~(PAGE_SIZE-1)) + +#ifdef __KERNEL__ + +#ifndef __ASSEMBLY__ + +#define PAGE_UP(addr) (((addr)+((PAGE_SIZE)-1))&(~((PAGE_SIZE)-1))) +#define PAGE_DOWN(addr) ((addr)&(~((PAGE_SIZE)-1))) + +/* align addr on a size boundary - adjust address up/down if needed */ +#define _ALIGN_UP(addr, size) (((addr)+((size)-1))&(~((size)-1))) +#define _ALIGN_DOWN(addr, size) ((addr)&(~((size)-1))) + +/* align addr on a size boundary - adjust address up if needed */ +#define _ALIGN(addr, size) _ALIGN_UP(addr, size) + +/* + * PAGE_OFFSET -- the first address of the first page of memory. When not + * using MMU this corresponds to the first free page in physical memory (aligned + * on a page boundary). + */ +#define PAGE_OFFSET (0xA0000000UL) + +#define clear_page(pgaddr) memset((pgaddr), 0, PAGE_SIZE) +#define copy_page(to, from) memcpy((to), (from), PAGE_SIZE) + +#define clear_user_page(pgaddr, vaddr, page) memset((pgaddr), 0, PAGE_SIZE) +#define copy_user_page(vto, vfrom, vaddr, topg) \ + memcpy((vto), (vfrom), PAGE_SIZE) + +/* + * These are used to make use of C type-checking.. + */ + +typedef struct { unsigned long pte; } pte_t; /* page table entry */ +typedef struct { unsigned long pgd; } pgd_t; /* PGD table entry */ +typedef struct { unsigned long pgprot; } pgprot_t; +typedef struct page *pgtable_t; + +#define pte_val(x) ((x).pte) +#define pgd_val(x) ((x).pgd) +#define pgprot_val(x) ((x).pgprot) + +#define __pte(x) ((pte_t) { (x) }) +#define __pgd(x) ((pgd_t) { (x) }) +#define __pgprot(x) ((pgprot_t) { (x) }) + +extern unsigned long max_low_pfn; +extern unsigned long min_low_pfn; +extern unsigned long max_pfn; + +#define __pa(vaddr) ((unsigned long) (vaddr)) +#define __va(paddr) ((void *) (paddr)) + +#define phys_to_pfn(phys) (PFN_DOWN(phys)) +#define pfn_to_phys(pfn) (PFN_PHYS(pfn)) + +#define virt_to_pfn(vaddr) (phys_to_pfn((__pa(vaddr)))) +#define pfn_to_virt(pfn) __va(pfn_to_phys((pfn))) + +#define virt_to_page(vaddr) (pfn_to_page(virt_to_pfn(vaddr))) +#define page_to_virt(page) (pfn_to_virt(page_to_pfn(page))) + +#define page_to_phys(page) (pfn_to_phys(page_to_pfn(page))) +#define page_to_bus(page) (page_to_phys(page)) +#define phys_to_page(paddr) (pfn_to_page(phys_to_pfn(paddr))) + +#define pfn_valid(pfn) ((pfn) >= min_low_pfn && (pfn) < max_mapnr) + +#define ARCH_PFN_OFFSET (PAGE_OFFSET >> PAGE_SHIFT) + +#endif /* __ASSEMBLY__ */ + +#define virt_addr_valid(vaddr) (pfn_valid(virt_to_pfn(vaddr))) + +#endif /* __KERNEL__ */ + +#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \ + VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) + +#include +#include + +#endif /* _ASM_SCORE_PAGE_H */ -- cgit v1.2.3 From ffa818b4b099f65b6cb74750bdb979061716e020 Mon Sep 17 00:00:00 2001 From: Chen Liqin Date: Sun, 30 Aug 2009 12:30:16 +0800 Subject: score: update inconsistent declare after .c was changed --- arch/score/include/asm/page.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/score/include/asm/page.h') diff --git a/arch/score/include/asm/page.h b/arch/score/include/asm/page.h index 67e98206be6..ee5821042fc 100644 --- a/arch/score/include/asm/page.h +++ b/arch/score/include/asm/page.h @@ -57,8 +57,8 @@ extern unsigned long max_low_pfn; extern unsigned long min_low_pfn; extern unsigned long max_pfn; -#define __pa(vaddr) ((unsigned long) (vaddr)) -#define __va(paddr) ((void *) (paddr)) +#define __pa(x) ((unsigned long)(x) - PAGE_OFFSET) +#define __va(x) ((void *)((unsigned long) (x) + PAGE_OFFSET)) #define phys_to_pfn(phys) (PFN_DOWN(phys)) #define pfn_to_phys(pfn) (PFN_PHYS(pfn)) -- cgit v1.2.3 From aa296ddf32da207b430f61b77a8e81c0663f07cf Mon Sep 17 00:00:00 2001 From: Tim Abbott Date: Sun, 20 Sep 2009 13:32:57 -0400 Subject: score: Make PAGE_SIZE available to assembly. Signed-off-by: Tim Abbott Acked-by: Sam Ravnborg --- arch/score/include/asm/page.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'arch/score/include/asm/page.h') diff --git a/arch/score/include/asm/page.h b/arch/score/include/asm/page.h index ee5821042fc..d92a5a2d36d 100644 --- a/arch/score/include/asm/page.h +++ b/arch/score/include/asm/page.h @@ -2,10 +2,11 @@ #define _ASM_SCORE_PAGE_H #include +#include /* PAGE_SHIFT determines the page size */ #define PAGE_SHIFT (12) -#define PAGE_SIZE (1UL << PAGE_SHIFT) +#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) #define PAGE_MASK (~(PAGE_SIZE-1)) #ifdef __KERNEL__ -- cgit v1.2.3