Lines Matching defs:ioc
198 struct ioc {
231 struct ioc *next; /* list of IOC's in system */
241 static struct ioc *ioc_list, *ioc_found;
244 static SBA_INLINE void sba_mark_invalid(struct ioc *, dma_addr_t, size_t);
245 static SBA_INLINE void sba_free_range(struct ioc *, dma_addr_t, size_t);
254 ? ((struct ioc *) PCI_CONTROLLER(to_pci_dev(dev))->iommu) : NULL)
302 * @ioc: IO MMU structure which owns the pdir we are interested in.
309 sba_dump_pdir_entry(struct ioc *ioc, char *msg, uint pide)
312 u64 *ptr = &ioc->pdir_base[pide & ~(BITS_PER_LONG - 1)];
313 unsigned long *rptr = (unsigned long *) &ioc->res_map[(pide >>3) & -sizeof(unsigned long)];
334 * @ioc: IO MMU structure which owns the pdir we are interested in.
340 sba_check_pdir(struct ioc *ioc, char *msg)
342 u64 *rptr_end = (u64 *) &(ioc->res_map[ioc->res_size]);
343 u64 *rptr = (u64 *) ioc->res_map; /* resource map ptr */
344 u64 *pptr = ioc->pdir_base; /* pdir ptr */
363 sba_dump_pdir_entry(ioc, msg, pide);
380 * @ioc: IO MMU structure which owns the pdir we are interested in.
387 sba_dump_sg( struct ioc *ioc, struct scatterlist *startsg, int nents)
398 sba_check_sg( struct ioc *ioc, struct scatterlist *startsg, int nents)
427 #define SBA_IOVA(ioc,iovp,offset) ((ioc->ibase) | (iovp) | (offset))
428 #define SBA_IOVP(ioc,iova) ((iova) & ~(ioc->ibase))
457 static unsigned long ptr_to_pide(struct ioc *ioc, unsigned long *res_ptr,
460 return (((unsigned long)res_ptr - (unsigned long)ioc->res_map) << 3)
466 * @ioc: IO MMU structure which owns the pdir we are interested in.
475 sba_search_bitmap(struct ioc *ioc, struct device *dev,
479 unsigned long *res_end = (unsigned long *) &(ioc->res_map[ioc->res_size]);
485 ASSERT(((unsigned long) ioc->res_hint & (sizeof(unsigned long) - 1UL)) == 0);
490 BUG_ON(ioc->ibase & ~iovp_mask);
491 shift = ioc->ibase >> iovp_shift;
493 spin_lock_irqsave(&ioc->res_lock, flags);
497 res_ptr = ioc->res_hint;
499 res_ptr = (ulong *)ioc->res_map;
500 ioc->res_bitshift = 0;
517 pide = ptr_to_pide(ioc, res_ptr, bitshiftcnt);
518 ioc->res_bitshift = bitshiftcnt + bits_wanted;
534 uint bitshiftcnt = ROUNDUP(ioc->res_bitshift, o);
546 tpide = ptr_to_pide(ioc, res_ptr, bitshiftcnt);
553 ioc->res_bitshift = bitshiftcnt + bits_wanted;
573 tpide = ptr_to_pide(ioc, res_ptr, 0);
592 ioc->res_bitshift = bits;
600 prefetch(ioc->res_map);
601 ioc->res_hint = (unsigned long *) ioc->res_map;
602 ioc->res_bitshift = 0;
603 spin_unlock_irqrestore(&ioc->res_lock, flags);
607 ioc->res_hint = res_ptr;
608 spin_unlock_irqrestore(&ioc->res_lock, flags);
615 * @ioc: IO MMU structure which owns the pdir we are interested in.
622 sba_alloc_range(struct ioc *ioc, struct device *dev, size_t size)
639 pide = sba_search_bitmap(ioc, dev, pages_needed, 1);
640 if (unlikely(pide >= (ioc->res_size << 3))) {
641 pide = sba_search_bitmap(ioc, dev, pages_needed, 0);
642 if (unlikely(pide >= (ioc->res_size << 3))) {
651 spin_lock_irqsave(&ioc->saved_lock, flags);
652 if (ioc->saved_cnt > 0) {
654 int cnt = ioc->saved_cnt;
656 d = &(ioc->saved[ioc->saved_cnt - 1]);
658 spin_lock(&ioc->res_lock);
660 sba_mark_invalid(ioc, d->iova, d->size);
661 sba_free_range(ioc, d->iova, d->size);
664 ioc->saved_cnt = 0;
665 READ_REG(ioc->ioc_hpa+IOC_PCOM); /* flush purges */
666 spin_unlock(&ioc->res_lock);
668 spin_unlock_irqrestore(&ioc->saved_lock, flags);
670 pide = sba_search_bitmap(ioc, dev, pages_needed, 0);
671 if (unlikely(pide >= (ioc->res_size << 3))) {
674 __func__, ioc->ioc_hpa, ioc->res_size,
681 __func__, ioc->ioc_hpa, ioc->res_size,
689 ioc->avg_search[ioc->avg_idx++] = (ia64_get_itc() - itc_start) / pages_needed;
690 ioc->avg_idx &= SBA_SEARCH_SAMPLE - 1;
693 prefetchw(&(ioc->pdir_base[pide]));
697 if(0x00 != ((u8 *) ioc->pdir_base)[pide*PDIR_ENTRY_SIZE + 7]) {
698 sba_dump_pdir_entry(ioc, "sba_search_bitmap() botched it?", pide);
704 (uint) ((unsigned long) ioc->res_hint - (unsigned long) ioc->res_map),
705 ioc->res_bitshift );
713 * @ioc: IO MMU structure which owns the pdir we are interested in.
717 * clear bits in the ioc's resource map
720 sba_free_range(struct ioc *ioc, dma_addr_t iova, size_t size)
722 unsigned long iovp = SBA_IOVP(ioc, iova);
725 unsigned long *res_ptr = (unsigned long *) &((ioc)->res_map[ridx & ~RESMAP_IDX_MASK]);
831 * @ioc: IO MMU structure which owns the pdir we are interested in.
846 sba_mark_invalid(struct ioc *ioc, dma_addr_t iova, size_t byte_cnt)
848 u32 iovp = (u32) SBA_IOVP(ioc,iova);
858 if (!(ioc->pdir_base[off] >> 60)) {
859 sba_dump_pdir_entry(ioc,"sba_mark_invalid()", PDIR_INDEX(iovp));
865 ASSERT(off < ioc->pdir_size);
876 ioc->pdir_base[off] &= ~(0x80000000000000FFULL);
883 ioc->pdir_base[off] = (0x80000000000000FFULL | prefetch_spill_page);
893 ASSERT(ioc->pdir_base[off] >> 63);
896 ioc->pdir_base[off] &= ~(0x80000000000000FFULL);
898 ioc->pdir_base[off] = (0x80000000000000FFULL | prefetch_spill_page);
905 WRITE_REG(iovp | ioc->ibase, ioc->ioc_hpa+IOC_PCOM);
924 struct ioc *ioc;
953 ioc = GET_IOC(dev);
954 ASSERT(ioc);
956 prefetch(ioc->res_hint);
968 spin_lock_irqsave(&ioc->res_lock, flags);
969 if (sba_check_pdir(ioc,"Check before sba_map_page()"))
971 spin_unlock_irqrestore(&ioc->res_lock, flags);
974 pide = sba_alloc_range(ioc, dev, size);
982 pdir_start = &(ioc->pdir_base[pide]);
999 spin_lock_irqsave(&ioc->res_lock, flags);
1000 sba_check_pdir(ioc,"Check after sba_map_page()");
1001 spin_unlock_irqrestore(&ioc->res_lock, flags);
1003 return SBA_IOVA(ioc, iovp, offset);
1008 sba_mark_clean(struct ioc *ioc, dma_addr_t iova, size_t size)
1010 u32 iovp = (u32) SBA_IOVP(ioc,iova);
1015 addr = phys_to_virt(ioc->pdir_base[off] &
1020 addr = phys_to_virt(ioc->pdir_base[off] &
1043 struct ioc *ioc;
1050 ioc = GET_IOC(dev);
1051 ASSERT(ioc);
1054 if (likely((iova & ioc->imask) != ioc->ibase)) {
1079 sba_mark_clean(ioc, iova, size);
1083 spin_lock_irqsave(&ioc->saved_lock, flags);
1084 d = &(ioc->saved[ioc->saved_cnt]);
1087 if (unlikely(++(ioc->saved_cnt) >= DELAYED_RESOURCE_CNT)) {
1088 int cnt = ioc->saved_cnt;
1089 spin_lock(&ioc->res_lock);
1091 sba_mark_invalid(ioc, d->iova, d->size);
1092 sba_free_range(ioc, d->iova, d->size);
1095 ioc->saved_cnt = 0;
1096 READ_REG(ioc->ioc_hpa+IOC_PCOM); /* flush purges */
1097 spin_unlock(&ioc->res_lock);
1099 spin_unlock_irqrestore(&ioc->saved_lock, flags);
1101 spin_lock_irqsave(&ioc->res_lock, flags);
1102 sba_mark_invalid(ioc, iova, size);
1103 sba_free_range(ioc, iova, size);
1104 READ_REG(ioc->ioc_hpa+IOC_PCOM); /* flush purges */
1105 spin_unlock_irqrestore(&ioc->res_lock, flags);
1122 struct ioc *ioc;
1126 ioc = GET_IOC(dev);
1127 ASSERT(ioc);
1129 node = ioc->node;
1157 *dma_handle = sba_map_page(&ioc->sac_only_dev->dev, page, 0, size,
1196 * @ioc: IO MMU structure which owns the pdir we are interested in.
1206 struct ioc *ioc,
1238 dma_sg->dma_address = pide | ioc->ibase;
1239 pdirp = &(ioc->pdir_base[pide >> iovp_shift]);
1288 * @ioc: IO MMU structure which owns the pdir we are interested in.
1301 sba_coalesce_chunks(struct ioc *ioc, struct device *dev,
1411 idx = sba_alloc_range(ioc, dev, dma_len);
1441 struct ioc *ioc;
1451 ioc = GET_IOC(dev);
1452 ASSERT(ioc);
1456 if (likely((ioc->dma_mask & ~to_pci_dev(dev)->dma_mask) == 0)) {
1475 spin_lock_irqsave(&ioc->res_lock, flags);
1476 if (sba_check_pdir(ioc,"Check before sba_map_sg_attrs()"))
1478 sba_dump_sg(ioc, sglist, nents);
1481 spin_unlock_irqrestore(&ioc->res_lock, flags);
1484 prefetch(ioc->res_hint);
1494 coalesced = sba_coalesce_chunks(ioc, dev, sglist, nents);
1508 filled = sba_fill_pdir(ioc, sglist, nents);
1511 spin_lock_irqsave(&ioc->res_lock, flags);
1512 if (sba_check_pdir(ioc,"Check after sba_map_sg_attrs()"))
1514 sba_dump_sg(ioc, sglist, nents);
1517 spin_unlock_irqrestore(&ioc->res_lock, flags);
1541 struct ioc *ioc;
1549 ioc = GET_IOC(dev);
1550 ASSERT(ioc);
1552 spin_lock_irqsave(&ioc->res_lock, flags);
1553 sba_check_pdir(ioc,"Check before sba_unmap_sg_attrs()");
1554 spin_unlock_irqrestore(&ioc->res_lock, flags);
1568 spin_lock_irqsave(&ioc->res_lock, flags);
1569 sba_check_pdir(ioc,"Check after sba_unmap_sg_attrs()");
1570 spin_unlock_irqrestore(&ioc->res_lock, flags);
1582 ioc_iova_init(struct ioc *ioc)
1596 ioc->ibase = READ_REG(ioc->ioc_hpa + IOC_IBASE) & ~0x1UL;
1597 ioc->imask = READ_REG(ioc->ioc_hpa + IOC_IMASK) | 0xFFFFFFFF00000000UL;
1599 ioc->iov_size = ~ioc->imask + 1;
1602 __func__, ioc->ioc_hpa, ioc->ibase, ioc->imask,
1603 ioc->iov_size >> 20);
1615 WRITE_REG(tcnfg, ioc->ioc_hpa + IOC_TCNFG);
1617 ioc->pdir_size = (ioc->iov_size / iovp_size) * PDIR_ENTRY_SIZE;
1618 ioc->pdir_base = (void *) __get_free_pages(GFP_KERNEL,
1619 get_order(ioc->pdir_size));
1620 if (!ioc->pdir_base)
1623 memset(ioc->pdir_base, 0, ioc->pdir_size);
1626 iovp_size >> 10, ioc->pdir_base, ioc->pdir_size);
1628 ASSERT(ALIGN((unsigned long) ioc->pdir_base, 4*1024) == (unsigned long) ioc->pdir_base);
1629 WRITE_REG(virt_to_phys(ioc->pdir_base), ioc->ioc_hpa + IOC_PDIR_BASE);
1644 ioc->iov_size/2 >> 20, ioc->ibase + ioc->iov_size/2);
1645 ioc->pdir_size /= 2;
1646 ((u64 *)ioc->pdir_base)[PDIR_INDEX(ioc->iov_size/2)] = ZX1_SBA_IOMMU_COOKIE;
1673 for (index = 0 ; index < (ioc->pdir_size / PDIR_ENTRY_SIZE) ; index++)
1674 ((u64 *)ioc->pdir_base)[index] = (0x80000000000000FF | prefetch_spill_page);
1678 WRITE_REG(ioc->ibase | (get_iovp_order(ioc->iov_size) + iovp_shift), ioc->ioc_hpa + IOC_PCOM);
1679 READ_REG(ioc->ioc_hpa + IOC_PCOM);
1682 WRITE_REG(ioc->ibase | 1, ioc->ioc_hpa + IOC_IBASE);
1683 READ_REG(ioc->ioc_hpa + IOC_IBASE);
1687 ioc_resource_init(struct ioc *ioc)
1689 spin_lock_init(&ioc->res_lock);
1691 spin_lock_init(&ioc->saved_lock);
1695 ioc->res_size = ioc->pdir_size / PDIR_ENTRY_SIZE; /* entries */
1696 ioc->res_size >>= 3; /* convert bit count to byte count */
1697 DBG_INIT("%s() res_size 0x%x\n", __func__, ioc->res_size);
1699 ioc->res_map = (char *) __get_free_pages(GFP_KERNEL,
1700 get_order(ioc->res_size));
1701 if (!ioc->res_map)
1704 memset(ioc->res_map, 0, ioc->res_size);
1706 ioc->res_hint = (unsigned long *) ioc->res_map;
1710 ioc->res_map[0] = 0x1;
1711 ioc->pdir_base[0] = 0x8000000000000000ULL | ZX1_SBA_IOMMU_COOKIE;
1715 ioc->res_map[ioc->res_size - 1] |= 0x80UL; /* res_map is chars */
1716 ioc->pdir_base[(ioc->pdir_size / PDIR_ENTRY_SIZE) - 1] = (0x80000000000000FF
1721 ioc->res_size, (void *) ioc->res_map);
1725 ioc_sac_init(struct ioc *ioc)
1743 controller->iommu = ioc;
1747 ioc->sac_only_dev = sac;
1751 ioc_zx1_init(struct ioc *ioc)
1756 if (ioc->rev < 0x20)
1760 ioc->dma_mask = (0x1UL << 39) - 1;
1769 rope_config = READ_REG(ioc->ioc_hpa + IOC_ROPE0_CFG + i);
1771 WRITE_REG(rope_config, ioc->ioc_hpa + IOC_ROPE0_CFG + i);
1775 typedef void (initfunc)(struct ioc *);
1790 static void __init ioc_init(unsigned long hpa, struct ioc *ioc)
1794 ioc->next = ioc_list;
1795 ioc_list = ioc;
1797 ioc->ioc_hpa = ioremap(hpa, 0x1000);
1799 ioc->func_id = READ_REG(ioc->ioc_hpa + IOC_FUNC_ID);
1800 ioc->rev = READ_REG(ioc->ioc_hpa + IOC_FCLASS) & 0xFFUL;
1801 ioc->dma_mask = 0xFFFFFFFFFFFFFFFFUL; /* conservative */
1804 if (ioc->func_id == info->func_id) {
1805 ioc->name = info->name;
1807 (info->init)(ioc);
1817 if (!ioc->name) {
1818 ioc->name = kmalloc(24, GFP_KERNEL);
1819 if (ioc->name)
1820 sprintf((char *) ioc->name, "Unknown (%04x:%04x)",
1821 ioc->func_id & 0xFFFF, (ioc->func_id >> 16) & 0xFFFF);
1823 ioc->name = "Unknown";
1826 ioc_iova_init(ioc);
1827 ioc_resource_init(ioc);
1828 ioc_sac_init(ioc);
1832 ioc->name, (ioc->rev >> 4) & 0xF, ioc->rev & 0xF,
1833 hpa, ioc->iov_size >> 20, ioc->ibase);
1851 struct ioc *ioc;
1854 for (ioc = ioc_list; ioc; ioc = ioc->next)
1856 return ioc;
1864 struct ioc *ioc = v;
1867 return ioc->next;
1878 struct ioc *ioc = v;
1879 unsigned long *res_ptr = (unsigned long *)ioc->res_map;
1883 ioc->name, ((ioc->rev >> 4) & 0xF), (ioc->rev & 0xF));
1885 if (ioc->node != NUMA_NO_NODE)
1886 seq_printf(s, "NUMA node : %d\n", ioc->node);
1888 seq_printf(s, "IOVA size : %ld MB\n", ((ioc->pdir_size >> 3) * iovp_size)/(1024*1024));
1891 for (i = 0; i < (ioc->res_size / sizeof(unsigned long)); ++i, ++res_ptr)
1894 seq_printf(s, "PDIR size : %d entries\n", ioc->pdir_size >> 3);
1900 min = max = ioc->avg_search[0];
1902 avg += ioc->avg_search[i];
1903 if (ioc->avg_search[i] > max) max = ioc->avg_search[i];
1904 if (ioc->avg_search[i] < min) min = ioc->avg_search[i];
1942 struct ioc *ioc;
1960 for (ioc = ioc_list; ioc; ioc = ioc->next)
1961 if (ioc->handle == handle) {
1962 PCI_CONTROLLER(bus)->iommu = ioc;
1974 sba_map_ioc_to_node(struct ioc *ioc, acpi_handle handle)
1983 ioc->node = node;
1987 static void __init acpi_sba_ioc_add(struct ioc *ioc)
1989 acpi_handle handle = ioc->handle;
1994 ioc_found = ioc->next;
2022 ioc_init(hpa, ioc);
2024 sba_map_ioc_to_node(ioc, handle);
2028 kfree(ioc);
2040 struct ioc *ioc;
2042 ioc = kzalloc(sizeof(*ioc), GFP_KERNEL);
2043 if (!ioc)
2046 ioc->next = ioc_found;
2047 ioc_found = ioc;
2048 ioc->handle = device->handle;