diff options
Diffstat (limited to 'sys/powerpc/booke/pmap.c')
| -rw-r--r-- | sys/powerpc/booke/pmap.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/sys/powerpc/booke/pmap.c b/sys/powerpc/booke/pmap.c index 343b046..b9f4838 100644 --- a/sys/powerpc/booke/pmap.c +++ b/sys/powerpc/booke/pmap.c @@ -274,6 +274,8 @@ static void mmu_booke_clear_reference(mmu_t, vm_page_t); static void mmu_booke_copy(mmu_t, pmap_t, pmap_t, vm_offset_t, vm_size_t, vm_offset_t); static void mmu_booke_copy_page(mmu_t, vm_page_t, vm_page_t); +static void mmu_booke_copy_pages(mmu_t, vm_page_t *, + vm_offset_t, vm_page_t *, vm_offset_t, int); static void mmu_booke_enter(mmu_t, pmap_t, vm_offset_t, vm_page_t, vm_prot_t, boolean_t); static void mmu_booke_enter_object(mmu_t, pmap_t, vm_offset_t, vm_offset_t, @@ -334,6 +336,7 @@ static mmu_method_t mmu_booke_methods[] = { MMUMETHOD(mmu_clear_reference, mmu_booke_clear_reference), MMUMETHOD(mmu_copy, mmu_booke_copy), MMUMETHOD(mmu_copy_page, mmu_booke_copy_page), + MMUMETHOD(mmu_copy_pages, mmu_booke_copy_pages), MMUMETHOD(mmu_enter, mmu_booke_enter), MMUMETHOD(mmu_enter_object, mmu_booke_enter_object), MMUMETHOD(mmu_enter_quick, mmu_booke_enter_quick), @@ -2136,6 +2139,36 @@ mmu_booke_copy_page(mmu_t mmu, vm_page_t sm, vm_page_t dm) mtx_unlock(©_page_mutex); } +static inline void +mmu_booke_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 *a_cp, *b_cp; + vm_offset_t a_pg_offset, b_pg_offset; + int cnt; + + mtx_lock(©_page_mutex); + while (xfersize > 0) { + a_pg_offset = a_offset & PAGE_MASK; + cnt = min(xfersize, PAGE_SIZE - a_pg_offset); + mmu_booke_kenter(mmu, copy_page_src_va, + VM_PAGE_TO_PHYS(ma[a_offset >> PAGE_SHIFT])); + a_cp = (char *)copy_page_src_va + a_pg_offset; + b_pg_offset = b_offset & PAGE_MASK; + cnt = min(cnt, PAGE_SIZE - b_pg_offset); + mmu_booke_kenter(mmu, copy_page_dst_va, + VM_PAGE_TO_PHYS(mb[b_offset >> PAGE_SHIFT])); + b_cp = (char *)copy_page_dst_va + b_pg_offset; + bcopy(a_cp, b_cp, cnt); + mmu_booke_kremove(mmu, copy_page_dst_va); + mmu_booke_kremove(mmu, copy_page_src_va); + a_offset += cnt; + b_offset += cnt; + xfersize -= cnt; + } + mtx_unlock(©_page_mutex); +} + /* * mmu_booke_zero_page_idle zeros the specified hardware page by mapping it * into virtual memory and using bzero to clear its contents. This is intended |
