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Adjust drm-memory for 4 level page tables in 2.6.10 ifdef'd to use 3 levels 

in kernels older than 2.6.10
main
Jon Smirl 2005-01-06 17:09:22 +00:00
parent 50a6ffa878
commit c6c7496ca0
1 changed files with 7 additions and 2 deletions
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9
linux-core/drm_memory.h
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@ -136,9 +136,14 @@ static inline void *agp_remap(unsigned long offset, unsigned long size,
static inline unsigned long drm_follow_page(void *vaddr)
{
pgd_t *pgd = pgd_offset_k((unsigned long)vaddr);
pgd_t *pgd = pgd_offset_k((unsigned long) vaddr);
#if LINUX_VERSION_CODE < 0x02060a /* KERNEL_VERSION(2,6,10) */
pmd_t *pmd = pmd_offset(pgd, (unsigned long)vaddr);
pte_t *ptep = pte_offset_kernel(pmd, (unsigned long)vaddr);
#else
pud_t *pud = pud_offset(pgd, (unsigned long) vaddr);
pmd_t *pmd = pmd_offset(pud, (unsigned long) vaddr);
#endif
pte_t *ptep = pte_offset_kernel(pmd, (unsigned long) vaddr);
return pte_pfn(*ptep) << PAGE_SHIFT;
}