diff options
Diffstat (limited to 'sys/powerpc/aim/mmu_oea64.c')
| -rw-r--r-- | sys/powerpc/aim/mmu_oea64.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/sys/powerpc/aim/mmu_oea64.c b/sys/powerpc/aim/mmu_oea64.c index 14b88f0..90466e8a 100644 --- a/sys/powerpc/aim/mmu_oea64.c +++ b/sys/powerpc/aim/mmu_oea64.c @@ -290,6 +290,8 @@ void moea64_change_wiring(mmu_t, pmap_t, vm_offset_t, boolean_t); void moea64_clear_modify(mmu_t, vm_page_t); void moea64_clear_reference(mmu_t, vm_page_t); void moea64_copy_page(mmu_t, vm_page_t, vm_page_t); +void moea64_copy_pages(mmu_t mmu, vm_page_t *ma, vm_offset_t a_offset, + vm_page_t *mb, vm_offset_t b_offset, int xfersize); void moea64_enter(mmu_t, pmap_t, vm_offset_t, vm_page_t, vm_prot_t, boolean_t); void moea64_enter_object(mmu_t, pmap_t, vm_offset_t, vm_offset_t, vm_page_t, vm_prot_t); @@ -334,6 +336,7 @@ static mmu_method_t moea64_methods[] = { MMUMETHOD(mmu_clear_modify, moea64_clear_modify), MMUMETHOD(mmu_clear_reference, moea64_clear_reference), MMUMETHOD(mmu_copy_page, moea64_copy_page), + MMUMETHOD(mmu_copy_pages, moea64_copy_pages), MMUMETHOD(mmu_enter, moea64_enter), MMUMETHOD(mmu_enter_object, moea64_enter_object), MMUMETHOD(mmu_enter_quick, moea64_enter_quick), @@ -1104,6 +1107,72 @@ moea64_copy_page(mmu_t mmu, vm_page_t msrc, vm_page_t mdst) } } +static inline void +moea64_copy_pages_dmap(mmu_t mmu, vm_page_t *ma, vm_offset_t a_offset, + vm_page_t *mb, vm_offset_t b_offset, int xfersize) +{ + void *a_cp, *b_cp; + vm_offset_t a_pg_offset, b_pg_offset; + int cnt; + + while (xfersize > 0) { + a_pg_offset = a_offset & PAGE_MASK; + cnt = min(xfersize, PAGE_SIZE - a_pg_offset); + a_cp = (char *)VM_PAGE_TO_PHYS(ma[a_offset >> PAGE_SHIFT]) + + a_pg_offset; + b_pg_offset = b_offset & PAGE_MASK; + cnt = min(cnt, PAGE_SIZE - b_pg_offset); + b_cp = (char *)VM_PAGE_TO_PHYS(mb[b_offset >> PAGE_SHIFT]) + + b_pg_offset; + bcopy(a_cp, b_cp, cnt); + a_offset += cnt; + b_offset += cnt; + xfersize -= cnt; + } +} + +static inline void +moea64_copy_pages_nodmap(mmu_t mmu, vm_page_t *ma, vm_offset_t a_offset, + vm_page_t *mb, vm_offset_t b_offset, int xfersize) +{ + void *a_cp, *b_cp; + vm_offset_t a_pg_offset, b_pg_offset; + int cnt; + + mtx_lock(&moea64_scratchpage_mtx); + while (xfersize > 0) { + a_pg_offset = a_offset & PAGE_MASK; + cnt = min(xfersize, PAGE_SIZE - a_pg_offset); + moea64_set_scratchpage_pa(mmu, 0, + VM_PAGE_TO_PHYS(ma[a_offset >> PAGE_SHIFT])); + a_cp = (char *)moea64_scratchpage_va[0] + a_pg_offset; + b_pg_offset = b_offset & PAGE_MASK; + cnt = min(cnt, PAGE_SIZE - b_pg_offset); + moea64_set_scratchpage_pa(mmu, 1, + VM_PAGE_TO_PHYS(mb[b_offset >> PAGE_SHIFT])); + b_cp = (char *)moea64_scratchpage_va[1] + b_pg_offset; + bcopy(a_cp, b_cp, cnt); + a_offset += cnt; + b_offset += cnt; + xfersize -= cnt; + } + mtx_unlock(&moea64_scratchpage_mtx); +} + +void +moea64_copy_pages(mmu_t mmu, vm_page_t *ma, vm_offset_t a_offset, + vm_page_t *mb, vm_offset_t b_offset, int xfersize) +{ + + if (hw_direct_map) { + moea64_copy_pages_dmap(mmu, ma, a_offset, mb, b_offset, + xfersize); + } else { + moea64_copy_pages_nodmap(mmu, ma, a_offset, mb, b_offset, + xfersize); + } +} + void moea64_zero_page_area(mmu_t mmu, vm_page_t m, int off, int size) { |
