diff options
| author | Tony Luck <tony.luck@intel.com> | 2006-06-21 14:50:10 -0700 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2006-06-21 14:50:10 -0700 |
| commit | 1323523f505606cfd24af6122369afddefc3b09d (patch) | |
| tree | a3238a27220dd91ec0918478683e59e48605865f /include | |
| parent | 9ba89334552b96e2127dcafb1c46ce255ecf2667 (diff) | |
| parent | 32e62c636a728cb39c0b3bd191286f2ca65d4028 (diff) | |
Pull rework-memory-attribute-aliasing into release branch
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-ia64/io.h | 1 | ||||
| -rw-r--r-- | include/asm-ia64/pgtable.h | 22 | ||||
| -rw-r--r-- | include/linux/efi.h | 1 |
3 files changed, 12 insertions, 12 deletions
diff --git a/include/asm-ia64/io.h b/include/asm-ia64/io.h index c2e3742108b..781ee2c7e8c 100644 --- a/include/asm-ia64/io.h +++ b/include/asm-ia64/io.h @@ -88,6 +88,7 @@ phys_to_virt (unsigned long address) } #define ARCH_HAS_VALID_PHYS_ADDR_RANGE +extern u64 kern_mem_attribute (unsigned long phys_addr, unsigned long size); extern int valid_phys_addr_range (unsigned long addr, size_t count); /* efi.c */ extern int valid_mmap_phys_addr_range (unsigned long addr, size_t count); diff --git a/include/asm-ia64/pgtable.h b/include/asm-ia64/pgtable.h index eaac08d5e0b..228981cadf8 100644 --- a/include/asm-ia64/pgtable.h +++ b/include/asm-ia64/pgtable.h @@ -316,22 +316,20 @@ ia64_phys_addr_valid (unsigned long addr) #define pte_mkhuge(pte) (__pte(pte_val(pte))) /* - * Macro to a page protection value as "uncacheable". Note that "protection" is really a - * misnomer here as the protection value contains the memory attribute bits, dirty bits, - * and various other bits as well. + * Make page protection values cacheable, uncacheable, or write- + * combining. Note that "protection" is really a misnomer here as the + * protection value contains the memory attribute bits, dirty bits, and + * various other bits as well. */ +#define pgprot_cacheable(prot) __pgprot((pgprot_val(prot) & ~_PAGE_MA_MASK) | _PAGE_MA_WB) #define pgprot_noncached(prot) __pgprot((pgprot_val(prot) & ~_PAGE_MA_MASK) | _PAGE_MA_UC) - -/* - * Macro to make mark a page protection value as "write-combining". - * Note that "protection" is really a misnomer here as the protection - * value contains the memory attribute bits, dirty bits, and various - * other bits as well. Accesses through a write-combining translation - * works bypasses the caches, but does allow for consecutive writes to - * be combined into single (but larger) write transactions. - */ #define pgprot_writecombine(prot) __pgprot((pgprot_val(prot) & ~_PAGE_MA_MASK) | _PAGE_MA_WC) +struct file; +extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn, + unsigned long size, pgprot_t vma_prot); +#define __HAVE_PHYS_MEM_ACCESS_PROT + static inline unsigned long pgd_index (unsigned long address) { diff --git a/include/linux/efi.h b/include/linux/efi.h index e203613d3ae..66d621dbcb6 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -294,6 +294,7 @@ extern void efi_enter_virtual_mode (void); /* switch EFI to virtual mode, if pos extern u64 efi_get_iobase (void); extern u32 efi_mem_type (unsigned long phys_addr); extern u64 efi_mem_attributes (unsigned long phys_addr); +extern u64 efi_mem_attribute (unsigned long phys_addr, unsigned long size); extern int efi_mem_attribute_range (unsigned long phys_addr, unsigned long size, u64 attr); extern int __init efi_uart_console_only (void); |