[linux-2.6-block.git] / arch / powerpc / include / asm / book3s / 64 / hugetlb.h

#ifndef _ASM_POWERPC_BOOK3S_64_HUGETLB_H
#define _ASM_POWERPC_BOOK3S_64_HUGETLB_H
/*
 * For radix we want generic code to handle hugetlb. But then if we want
 * both hash and radix to be enabled together we need to workaround the
 * limitations.
 */
void radix__flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
void radix__local_flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
extern unsigned long
radix__hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
				unsigned long len, unsigned long pgoff,
				unsigned long flags);

static inline int hstate_get_psize(struct hstate *hstate)
{
	unsigned long shift;

	shift = huge_page_shift(hstate);
	if (shift == mmu_psize_defs[MMU_PAGE_2M].shift)
		return MMU_PAGE_2M;
	else if (shift == mmu_psize_defs[MMU_PAGE_1G].shift)
		return MMU_PAGE_1G;
	else {
		WARN(1, "Wrong huge page shift\n");
		return mmu_virtual_psize;
	}
}
#endif
Commit	Line	Data
bee8b3b5 AK	1	#ifndef _ASM_POWERPC_BOOK3S_64_HUGETLB_H
bee8b3b5 AK	2	#define _ASM_POWERPC_BOOK3S_64_HUGETLB_H
48483760 AK	3	/*
	4	* For radix we want generic code to handle hugetlb. But then if we want
	5	* both hash and radix to be enabled together we need to workaround the
	6	* limitations.
	7	*/
	8	void radix__flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
	9	void radix__local_flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
	10	extern unsigned long
	11	radix__hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
	12	unsigned long len, unsigned long pgoff,
	13	unsigned long flags);
fbfa26d8 AK	14
	15	static inline int hstate_get_psize(struct hstate *hstate)
	16	{
	17	unsigned long shift;
	18
	19	shift = huge_page_shift(hstate);
	20	if (shift == mmu_psize_defs[MMU_PAGE_2M].shift)
	21	return MMU_PAGE_2M;
	22	else if (shift == mmu_psize_defs[MMU_PAGE_1G].shift)
	23	return MMU_PAGE_1G;
	24	else {
	25	WARN(1, "Wrong huge page shift\n");
	26	return mmu_virtual_psize;
	27	}
	28	}
48483760	29	#endif