diff options
Diffstat (limited to 'arch/microblaze/include/asm')
| -rw-r--r-- | arch/microblaze/include/asm/io.h | 4 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/irq.h | 1 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/page.h | 3 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/pci.h | 2 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/pgalloc.h | 138 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/pgtable.h | 39 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/uaccess.h | 42 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/vmalloc.h | 4 |
8 files changed, 22 insertions, 211 deletions
diff --git a/arch/microblaze/include/asm/io.h b/arch/microblaze/include/asm/io.h index c7968139486f..d33c61737b8b 100644 --- a/arch/microblaze/include/asm/io.h +++ b/arch/microblaze/include/asm/io.h @@ -39,10 +39,6 @@ extern resource_size_t isa_mem_base; extern void iounmap(volatile void __iomem *addr); extern void __iomem *ioremap(phys_addr_t address, unsigned long size); -#define ioremap_nocache(addr, size) ioremap((addr), (size)) -#define ioremap_fullcache(addr, size) ioremap((addr), (size)) -#define ioremap_wc(addr, size) ioremap((addr), (size)) -#define ioremap_wt(addr, size) ioremap((addr), (size)) #endif /* CONFIG_MMU */ diff --git a/arch/microblaze/include/asm/irq.h b/arch/microblaze/include/asm/irq.h index d785defeeed5..eac2fb4b3fb9 100644 --- a/arch/microblaze/include/asm/irq.h +++ b/arch/microblaze/include/asm/irq.h @@ -9,7 +9,6 @@ #ifndef _ASM_MICROBLAZE_IRQ_H #define _ASM_MICROBLAZE_IRQ_H -#define NR_IRQS (32 + 1) #include <asm-generic/irq.h> struct pt_regs; diff --git a/arch/microblaze/include/asm/page.h b/arch/microblaze/include/asm/page.h index d506bb0893f9..f4b44b24b02e 100644 --- a/arch/microblaze/include/asm/page.h +++ b/arch/microblaze/include/asm/page.h @@ -90,7 +90,6 @@ typedef struct { unsigned long pte; } pte_t; typedef struct { unsigned long pgprot; } pgprot_t; /* FIXME this can depend on linux kernel version */ # ifdef CONFIG_MMU -typedef struct { unsigned long pmd; } pmd_t; typedef struct { unsigned long pgd; } pgd_t; # else /* CONFIG_MMU */ typedef struct { unsigned long ste[64]; } pmd_t; @@ -103,7 +102,6 @@ typedef struct { p4d_t pge[1]; } pgd_t; # define pgprot_val(x) ((x).pgprot) # ifdef CONFIG_MMU -# define pmd_val(x) ((x).pmd) # define pgd_val(x) ((x).pgd) # else /* CONFIG_MMU */ # define pmd_val(x) ((x).ste[0]) @@ -112,7 +110,6 @@ typedef struct { p4d_t pge[1]; } pgd_t; # endif /* CONFIG_MMU */ # define __pte(x) ((pte_t) { (x) }) -# define __pmd(x) ((pmd_t) { (x) }) # define __pgd(x) ((pgd_t) { (x) }) # define __pgprot(x) ((pgprot_t) { (x) }) diff --git a/arch/microblaze/include/asm/pci.h b/arch/microblaze/include/asm/pci.h index 21ddba9188b2..7c4dc5d85f53 100644 --- a/arch/microblaze/include/asm/pci.h +++ b/arch/microblaze/include/asm/pci.h @@ -66,8 +66,6 @@ extern pgprot_t pci_phys_mem_access_prot(struct file *file, unsigned long size, pgprot_t prot); -#define HAVE_ARCH_PCI_RESOURCE_TO_USER - /* This part of code was originally in xilinx-pci.h */ #ifdef CONFIG_PCI_XILINX extern void __init xilinx_pci_init(void); diff --git a/arch/microblaze/include/asm/pgalloc.h b/arch/microblaze/include/asm/pgalloc.h index f4cc9ffc449e..fcf1e23f2e0a 100644 --- a/arch/microblaze/include/asm/pgalloc.h +++ b/arch/microblaze/include/asm/pgalloc.h @@ -21,139 +21,28 @@ #include <asm/cache.h> #include <asm/pgtable.h> -#define PGDIR_ORDER 0 - -/* - * This is handled very differently on MicroBlaze since out page tables - * are all 0's and I want to be able to use these zero'd pages elsewhere - * as well - it gives us quite a speedup. - * -- Cort - */ -extern struct pgtable_cache_struct { - unsigned long *pgd_cache; - unsigned long *pte_cache; - unsigned long pgtable_cache_sz; -} quicklists; - -#define pgd_quicklist (quicklists.pgd_cache) -#define pmd_quicklist ((unsigned long *)0) -#define pte_quicklist (quicklists.pte_cache) -#define pgtable_cache_size (quicklists.pgtable_cache_sz) - -extern unsigned long *zero_cache; /* head linked list of pre-zero'd pages */ -extern atomic_t zero_sz; /* # currently pre-zero'd pages */ -extern atomic_t zeropage_hits; /* # zero'd pages request that we've done */ -extern atomic_t zeropage_calls; /* # zero'd pages request that've been made */ -extern atomic_t zerototal; /* # pages zero'd over time */ - -#define zero_quicklist (zero_cache) -#define zero_cache_sz (zero_sz) -#define zero_cache_calls (zeropage_calls) -#define zero_cache_hits (zeropage_hits) -#define zero_cache_total (zerototal) - -/* - * return a pre-zero'd page from the list, - * return NULL if none available -- Cort - */ -extern unsigned long get_zero_page_fast(void); +#define __HAVE_ARCH_PTE_ALLOC_ONE_KERNEL +#include <asm-generic/pgalloc.h> extern void __bad_pte(pmd_t *pmd); -static inline pgd_t *get_pgd_slow(void) +static inline pgd_t *get_pgd(void) { - pgd_t *ret; - - ret = (pgd_t *)__get_free_pages(GFP_KERNEL, PGDIR_ORDER); - if (ret != NULL) - clear_page(ret); - return ret; + return (pgd_t *)__get_free_pages(GFP_KERNEL|__GFP_ZERO, 0); } -static inline pgd_t *get_pgd_fast(void) -{ - unsigned long *ret; - - ret = pgd_quicklist; - if (ret != NULL) { - pgd_quicklist = (unsigned long *)(*ret); - ret[0] = 0; - pgtable_cache_size--; - } else - ret = (unsigned long *)get_pgd_slow(); - return (pgd_t *)ret; -} - -static inline void free_pgd_fast(pgd_t *pgd) -{ - *(unsigned long **)pgd = pgd_quicklist; - pgd_quicklist = (unsigned long *) pgd; - pgtable_cache_size++; -} - -static inline void free_pgd_slow(pgd_t *pgd) +static inline void free_pgd(pgd_t *pgd) { free_page((unsigned long)pgd); } -#define pgd_free(mm, pgd) free_pgd_fast(pgd) -#define pgd_alloc(mm) get_pgd_fast() +#define pgd_free(mm, pgd) free_pgd(pgd) +#define pgd_alloc(mm) get_pgd() #define pmd_pgtable(pmd) pmd_page(pmd) -/* - * We don't have any real pmd's, and this code never triggers because - * the pgd will always be present.. - */ -#define pmd_alloc_one_fast(mm, address) ({ BUG(); ((pmd_t *)1); }) -#define pmd_alloc_one(mm, address) ({ BUG(); ((pmd_t *)2); }) - extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm); -static inline struct page *pte_alloc_one(struct mm_struct *mm) -{ - struct page *ptepage; - -#ifdef CONFIG_HIGHPTE - int flags = GFP_KERNEL | __GFP_HIGHMEM; -#else - int flags = GFP_KERNEL; -#endif - - ptepage = alloc_pages(flags, 0); - if (!ptepage) - return NULL; - clear_highpage(ptepage); - if (!pgtable_page_ctor(ptepage)) { - __free_page(ptepage); - return NULL; - } - return ptepage; -} - -static inline void pte_free_fast(pte_t *pte) -{ - *(unsigned long **)pte = pte_quicklist; - pte_quicklist = (unsigned long *) pte; - pgtable_cache_size++; -} - -static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) -{ - free_page((unsigned long)pte); -} - -static inline void pte_free_slow(struct page *ptepage) -{ - __free_page(ptepage); -} - -static inline void pte_free(struct mm_struct *mm, struct page *ptepage) -{ - pgtable_page_dtor(ptepage); - __free_page(ptepage); -} - #define __pte_free_tlb(tlb, pte, addr) pte_free((tlb)->mm, (pte)) #define pmd_populate(mm, pmd, pte) \ @@ -162,19 +51,6 @@ static inline void pte_free(struct mm_struct *mm, struct page *ptepage) #define pmd_populate_kernel(mm, pmd, pte) \ (pmd_val(*(pmd)) = (unsigned long) (pte)) -/* - * We don't have any real pmd's, and this code never triggers because - * the pgd will always be present.. - */ -#define pmd_alloc_one(mm, address) ({ BUG(); ((pmd_t *)2); }) -#define pmd_free(mm, x) do { } while (0) -#define __pmd_free_tlb(tlb, x, addr) pmd_free((tlb)->mm, x) -#define pgd_populate(mm, pmd, pte) BUG() - -extern int do_check_pgt_cache(int, int); - #endif /* CONFIG_MMU */ -#define check_pgt_cache() do { } while (0) - #endif /* _ASM_MICROBLAZE_PGALLOC_H */ diff --git a/arch/microblaze/include/asm/pgtable.h b/arch/microblaze/include/asm/pgtable.h index 142d3f004848..2def331f9e2c 100644 --- a/arch/microblaze/include/asm/pgtable.h +++ b/arch/microblaze/include/asm/pgtable.h @@ -46,8 +46,6 @@ extern int mem_init_done; #define swapper_pg_dir ((pgd_t *) NULL) -#define pgtable_cache_init() do {} while (0) - #define arch_enter_lazy_cpu_mode() do {} while (0) #define pgprot_noncached_wc(prot) prot @@ -61,9 +59,7 @@ extern int mem_init_done; #else /* CONFIG_MMU */ -#include <asm-generic/4level-fixup.h> - -#define __PAGETABLE_PMD_FOLDED 1 +#include <asm-generic/pgtable-nopmd.h> #ifdef __KERNEL__ #ifndef __ASSEMBLY__ @@ -140,13 +136,8 @@ static inline pte_t pte_mkspecial(pte_t pte) { return pte; } * */ -/* PMD_SHIFT determines the size of the area mapped by the PTE pages */ -#define PMD_SHIFT (PAGE_SHIFT + PTE_SHIFT) -#define PMD_SIZE (1UL << PMD_SHIFT) -#define PMD_MASK (~(PMD_SIZE-1)) - /* PGDIR_SHIFT determines what a top-level page table entry can map */ -#define PGDIR_SHIFT PMD_SHIFT +#define PGDIR_SHIFT (PAGE_SHIFT + PTE_SHIFT) #define PGDIR_SIZE (1UL << PGDIR_SHIFT) #define PGDIR_MASK (~(PGDIR_SIZE-1)) @@ -167,9 +158,6 @@ static inline pte_t pte_mkspecial(pte_t pte) { return pte; } #define pte_ERROR(e) \ printk(KERN_ERR "%s:%d: bad pte "PTE_FMT".\n", \ __FILE__, __LINE__, pte_val(e)) -#define pmd_ERROR(e) \ - printk(KERN_ERR "%s:%d: bad pmd %08lx.\n", \ - __FILE__, __LINE__, pmd_val(e)) #define pgd_ERROR(e) \ printk(KERN_ERR "%s:%d: bad pgd %08lx.\n", \ __FILE__, __LINE__, pgd_val(e)) @@ -316,18 +304,6 @@ extern unsigned long empty_zero_page[1024]; #ifndef __ASSEMBLY__ /* - * The "pgd_xxx()" functions here are trivial for a folded two-level - * setup: the pgd is never bad, and a pmd always exists (as it's folded - * into the pgd entry) - */ -static inline int pgd_none(pgd_t pgd) { return 0; } -static inline int pgd_bad(pgd_t pgd) { return 0; } -static inline int pgd_present(pgd_t pgd) { return 1; } -#define pgd_clear(xp) do { } while (0) -#define pgd_page(pgd) \ - ((unsigned long) __va(pgd_val(pgd) & PAGE_MASK)) - -/* * The following only work if pte_present() is true. * Undefined behaviour if not.. */ @@ -481,12 +457,6 @@ static inline void ptep_mkdirty(struct mm_struct *mm, #define pgd_index(address) ((address) >> PGDIR_SHIFT) #define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address)) -/* Find an entry in the second-level page table.. */ -static inline pmd_t *pmd_offset(pgd_t *dir, unsigned long address) -{ - return (pmd_t *) dir; -} - /* Find an entry in the third-level page table.. */ #define pte_index(address) \ (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) @@ -526,11 +496,6 @@ extern unsigned long iopa(unsigned long addr); /* Needs to be defined here and not in linux/mm.h, as it is arch dependent */ #define kern_addr_valid(addr) (1) -/* - * No page table caches to initialise - */ -#define pgtable_cache_init() do { } while (0) - void do_page_fault(struct pt_regs *regs, unsigned long address, unsigned long error_code); diff --git a/arch/microblaze/include/asm/uaccess.h b/arch/microblaze/include/asm/uaccess.h index bff2a71c828a..a1f206b90753 100644 --- a/arch/microblaze/include/asm/uaccess.h +++ b/arch/microblaze/include/asm/uaccess.h @@ -163,44 +163,15 @@ extern long __user_bad(void); * Returns zero on success, or -EFAULT on error. * On error, the variable @x is set to zero. */ -#define get_user(x, ptr) \ - __get_user_check((x), (ptr), sizeof(*(ptr))) - -#define __get_user_check(x, ptr, size) \ -({ \ - unsigned long __gu_val = 0; \ - const typeof(*(ptr)) __user *__gu_addr = (ptr); \ - int __gu_err = 0; \ - \ - if (access_ok(__gu_addr, size)) { \ - switch (size) { \ - case 1: \ - __get_user_asm("lbu", __gu_addr, __gu_val, \ - __gu_err); \ - break; \ - case 2: \ - __get_user_asm("lhu", __gu_addr, __gu_val, \ - __gu_err); \ - break; \ - case 4: \ - __get_user_asm("lw", __gu_addr, __gu_val, \ - __gu_err); \ - break; \ - default: \ - __gu_err = __user_bad(); \ - break; \ - } \ - } else { \ - __gu_err = -EFAULT; \ - } \ - x = (__force typeof(*(ptr)))__gu_val; \ - __gu_err; \ +#define get_user(x, ptr) ({ \ + const typeof(*(ptr)) __user *__gu_ptr = (ptr); \ + access_ok(__gu_ptr, sizeof(*__gu_ptr)) ? \ + __get_user(x, __gu_ptr) : -EFAULT; \ }) #define __get_user(x, ptr) \ ({ \ unsigned long __gu_val = 0; \ - /*unsigned long __gu_ptr = (unsigned long)(ptr);*/ \ long __gu_err; \ switch (sizeof(*(ptr))) { \ case 1: \ @@ -212,6 +183,11 @@ extern long __user_bad(void); case 4: \ __get_user_asm("lw", (ptr), __gu_val, __gu_err); \ break; \ + case 8: \ + __gu_err = __copy_from_user(&__gu_val, ptr, 8); \ + if (__gu_err) \ + __gu_err = -EFAULT; \ + break; \ default: \ /* __gu_val = 0; __gu_err = -EINVAL;*/ __gu_err = __user_bad();\ } \ diff --git a/arch/microblaze/include/asm/vmalloc.h b/arch/microblaze/include/asm/vmalloc.h new file mode 100644 index 000000000000..04013a42b0fe --- /dev/null +++ b/arch/microblaze/include/asm/vmalloc.h @@ -0,0 +1,4 @@ +#ifndef _ASM_MICROBLAZE_VMALLOC_H +#define _ASM_MICROBLAZE_VMALLOC_H + +#endif /* _ASM_MICROBLAZE_VMALLOC_H */ |
