common/os/bp_map.c

43 #define	BP_FLUSH(addr, size)	flush_instr_mem((void *)addr, size);
45 #define	BP_FLUSH(addr, size)
54     offset_t offset, size_t size);
63 bp_vmem_alloc(vmem_t *vmp, size_t size, int vmflag)
65 	return (vmem_xalloc(vmp, size, bp_align, 0, 0, NULL, NULL, vmflag));
93 	size_t		size;
108 	size = P2ROUNDUP(bp->b_bcount + off, PAGESIZE);
109 	npages = btop(size);
132 		    P2ROUNDUP(color + size, bp_align), flag);
137 		kaddr = vmem_xalloc(heap_arena, size, bp_align, color,
207 	size_t		size;
216 	size = P2ROUNDUP(bp->b_bcount + off, PAGESIZE);
217 	npages = btop(size);
234 	BP_FLUSH(base, size);
235 	hat_unload(kas.a_hat, (void *)base, size,
240 		    P2ROUNDUP(color + size, bp_align));
242 		vmem_free(heap_arena, (void *)base, size);
251 bp_copyout(void *driverbuf, struct buf *bp, offset_t offset, size_t size)
253 	return (bp_copy_common(BP_COPYOUT, bp, driverbuf, offset, size));
261 bp_copyin(struct buf *bp, void *driverbuf, offset_t offset, size_t size)
263 	return (bp_copy_common(BP_COPYIN, bp, driverbuf, offset, size));
273     offset_t offset, size_t size)
287 	ASSERT((offset + size) <= bp->b_bcount);
291 		BP_COPY(dir, driverbuf, bp->b_un.b_addr + offset, size);
298 		BP_COPY(dir, driverbuf, bp->b_un.b_addr + offset, size);
324 	 * size of the first page we are going to copy.
328 	psize = MIN(PAGESIZE - poff, size);
337 	while (size > 0) {
371 		 * the page size (how much we will copy) and the offset into the
382 		 * We don't have to worry about the first page offset and size
388 			psize = MIN(PAGESIZE, size);
395 		 * page. update size left and offset into the driverbuf passed
403 		size -= psize;
407 		psize = MIN(PAGESIZE, size);