diff options
Diffstat (limited to 'arch/mips/include/asm/page.h')
| -rw-r--r-- | arch/mips/include/asm/page.h | 62 |
1 files changed, 43 insertions, 19 deletions
diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h index dbaec94046d..5699ec3a71a 100644 --- a/arch/mips/include/asm/page.h +++ b/arch/mips/include/asm/page.h @@ -11,6 +11,8 @@ #include <spaces.h> #include <linux/const.h> +#include <linux/kernel.h> +#include <asm/mipsregs.h> /* * PAGE_SHIFT determines the page size @@ -31,7 +33,30 @@ #define PAGE_SHIFT 16 #endif #define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) -#define PAGE_MASK (~(PAGE_SIZE - 1)) +#define PAGE_MASK (~((1 << PAGE_SHIFT) - 1)) + +/* + * This is used for calculating the real page sizes + * for FTLB or VTLB + FTLB confugrations. + */ +static inline unsigned int page_size_ftlb(unsigned int mmuextdef) +{ + switch (mmuextdef) { + case MIPS_CONF4_MMUEXTDEF_FTLBSIZEEXT: + if (PAGE_SIZE == (1 << 30)) + return 5; + if (PAGE_SIZE == (1llu << 32)) + return 6; + if (PAGE_SIZE > (256 << 10)) + return 7; /* reserved */ + /* fall through */ + case MIPS_CONF4_MMUEXTDEF_VTLBSIZEEXT: + return (PAGE_SHIFT - 10) / 2; + default: + panic("Invalid FTLB configuration with Conf4_mmuextdef=%d value\n", + mmuextdef >> 14); + } +} #ifdef CONFIG_MIPS_HUGE_TLB_SUPPORT #define HPAGE_SHIFT (PAGE_SHIFT + PAGE_SHIFT - 3) @@ -46,7 +71,6 @@ #endif /* CONFIG_MIPS_HUGE_TLB_SUPPORT */ #include <linux/pfn.h> -#include <asm/io.h> extern void build_clear_page(void); extern void build_copy_page(void); @@ -95,11 +119,11 @@ extern void copy_user_highpage(struct page *to, struct page *from, #ifdef CONFIG_64BIT_PHYS_ADDR #ifdef CONFIG_CPU_MIPS32 typedef struct { unsigned long pte_low, pte_high; } pte_t; - #define pte_val(x) ((x).pte_low | ((unsigned long long)(x).pte_high << 32)) - #define __pte(x) ({ pte_t __pte = {(x), ((unsigned long long)(x)) >> 32}; __pte; }) + #define pte_val(x) ((x).pte_low | ((unsigned long long)(x).pte_high << 32)) + #define __pte(x) ({ pte_t __pte = {(x), ((unsigned long long)(x)) >> 32}; __pte; }) #else typedef struct { unsigned long long pte; } pte_t; - #define pte_val(x) ((x).pte) + #define pte_val(x) ((x).pte) #define __pte(x) ((pte_t) { (x) } ) #endif #else @@ -151,6 +175,7 @@ typedef struct { unsigned long pgprot; } pgprot_t; ((unsigned long)(x) - PAGE_OFFSET + PHYS_OFFSET) #endif #define __va(x) ((void *)((unsigned long)(x) + PAGE_OFFSET - PHYS_OFFSET)) +#include <asm/io.h> /* * RELOC_HIDE was originally added by 6007b903dfe5f1d13e0c711ac2894bdd4a61b1ad @@ -165,20 +190,21 @@ typedef struct { unsigned long pgprot; } pgprot_t; * https://patchwork.linux-mips.org/patch/1541/ */ +#ifndef __pa_symbol #define __pa_symbol(x) __pa(RELOC_HIDE((unsigned long)(x), 0)) +#endif #define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT) #ifdef CONFIG_FLATMEM -#define pfn_valid(pfn) \ -({ \ - unsigned long __pfn = (pfn); \ - /* avoid <linux/bootmem.h> include hell */ \ - extern unsigned long min_low_pfn; \ - \ - __pfn >= min_low_pfn && __pfn < max_mapnr; \ -}) +static inline int pfn_valid(unsigned long pfn) +{ + /* avoid <linux/mm.h> include hell */ + extern unsigned long max_mapnr; + + return pfn >= ARCH_PFN_OFFSET && pfn < max_mapnr; +} #elif defined(CONFIG_SPARSEMEM) @@ -191,8 +217,8 @@ typedef struct { unsigned long pgprot; } pgprot_t; unsigned long __pfn = (pfn); \ int __n = pfn_to_nid(__pfn); \ ((__n >= 0) ? (__pfn < NODE_DATA(__n)->node_start_pfn + \ - NODE_DATA(__n)->node_spanned_pages) \ - : 0); \ + NODE_DATA(__n)->node_spanned_pages) \ + : 0); \ }) #endif @@ -206,10 +232,8 @@ extern int __virt_addr_valid(const volatile void *kaddr); #define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \ VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) -#define UNCAC_ADDR(addr) ((addr) - PAGE_OFFSET + UNCAC_BASE + \ - PHYS_OFFSET) -#define CAC_ADDR(addr) ((addr) - UNCAC_BASE + PAGE_OFFSET - \ - PHYS_OFFSET) +#define UNCAC_ADDR(addr) ((addr) - PAGE_OFFSET + UNCAC_BASE) +#define CAC_ADDR(addr) ((addr) - UNCAC_BASE + PAGE_OFFSET) #include <asm-generic/memory_model.h> #include <asm-generic/getorder.h> |