ddi_btop

convert device bytes to pages (round down) 

ddi_btopr 

convert device bytes to pages (round up) 

ddi_ptob 

convert device pages to bytes 

btop 

convert size in bytes to size in pages (round down) 

btopr 

convert size in bytes to size in pages (round up) 

ptob 

convert size in pages to size in bytes 

hat_getkpfnum

see devmap(9e), ddi_dma_*_bind_handle, ddi_dma_nextcookie