[ammarfaizi2-block:google/android/kernel/common/android-4.19-stable 802/9999] drivers/iommu/io-pgtable-arm.c:666:41: error: implicit declaration of function 'iommu_pgsize'

From: kernel test robot
Date: Thu Feb 03 2022 - 20:29:52 EST

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Hi Swathi,

FYI, the error/warning still remains.

tree: https://github.com/ammarfaizi2/linux-block google/android/kernel/common/android-4.19-stable
head: a2429bd75fe959e3bf866aa5005606031b5c16be
commit: 27de1978c331d4e7571a5d0187ef1802d65dbf65 [802/9999] ANDROID: GKI: iommu/io-pgtable-arm: LPAE related updates by vendor
config: arm-randconfig-r033-20220130 (https://download.01.org/0day-ci/archive/20220204/202202040253.jsNxVzXI-lkp@xxxxxxxxx/config)
compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/ammarfaizi2/linux-block/commit/27de1978c331d4e7571a5d0187ef1802d65dbf65
git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
git fetch --no-tags ammarfaizi2-block google/android/kernel/common/android-4.19-stable
git checkout 27de1978c331d4e7571a5d0187ef1802d65dbf65
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm SHELL=/bin/bash arch/arm/crypto/ drivers/iommu/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

drivers/iommu/io-pgtable-arm.c: In function '__arm_lpae_alloc_pages':
drivers/iommu/io-pgtable-arm.c:312:23: error: implicit declaration of function 'io_pgtable_alloc_pages_exact' [-Werror=implicit-function-declaration]
312 | void *pages = io_pgtable_alloc_pages_exact(cfg, cookie, size,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/iommu/io-pgtable-arm.c:312:23: warning: initialization of 'void *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
drivers/iommu/io-pgtable-arm.c:337:9: error: implicit declaration of function 'io_pgtable_free_pages_exact' [-Werror=implicit-function-declaration]
337 | io_pgtable_free_pages_exact(cfg, cookie, pages, size);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/iommu/io-pgtable-arm.c: In function 'arm_lpae_prot_to_pte':
drivers/iommu/io-pgtable-arm.c:572:33: error: 'IOMMU_USE_UPSTREAM_HINT' undeclared (first use in this function)
572 | else if (prot & IOMMU_USE_UPSTREAM_HINT)
| ^~~~~~~~~~~~~~~~~~~~~~~
drivers/iommu/io-pgtable-arm.c:572:33: note: each undeclared identifier is reported only once for each function it appears in
drivers/iommu/io-pgtable-arm.c:575:33: error: 'IOMMU_USE_LLC_NWA' undeclared (first use in this function)
575 | else if (prot & IOMMU_USE_LLC_NWA)
| ^~~~~~~~~~~~~~~~~
drivers/iommu/io-pgtable-arm.c: In function 'arm_lpae_map_sg':
>> drivers/iommu/io-pgtable-arm.c:666:41: error: implicit declaration of function 'iommu_pgsize' [-Werror=implicit-function-declaration]
666 | size_t pgsize = iommu_pgsize(
| ^~~~~~~~~~~~
drivers/iommu/io-pgtable-arm.c: In function 'arm_lpae_alloc_pgtable':
drivers/iommu/io-pgtable-arm.c:1095:18: error: 'struct io_pgtable_ops' has no member named 'map_sg'
1095 | .map_sg = arm_lpae_map_sg,
| ^~~~~~
drivers/iommu/io-pgtable-arm.c:1095:35: error: initialization of 'size_t (*)(struct io_pgtable_ops *, long unsigned int, size_t)' {aka 'unsigned int (*)(struct io_pgtable_ops *, long unsigned int, unsigned int)'} from incompatible pointer type 'int (*)(struct io_pgtable_ops *, long unsigned int, struct scatterlist *, unsigned int, int, size_t *)' {aka 'int (*)(struct io_pgtable_ops *, long unsigned int, struct scatterlist *, unsigned int, int, unsigned int *)'} [-Werror=incompatible-pointer-types]
1095 | .map_sg = arm_lpae_map_sg,
| ^~~~~~~~~~~~~~~
drivers/iommu/io-pgtable-arm.c:1095:35: note: (near initialization for '(anonymous).unmap')
drivers/iommu/io-pgtable-arm.c:1096:35: warning: initialized field overwritten [-Woverride-init]
1096 | .unmap = arm_lpae_unmap,
| ^~~~~~~~~~~~~~
drivers/iommu/io-pgtable-arm.c:1096:35: note: (near initialization for '(anonymous).unmap')
drivers/iommu/io-pgtable-arm.c:1098:18: error: 'struct io_pgtable_ops' has no member named 'is_iova_coherent'
1098 | .is_iova_coherent = arm_lpae_is_iova_coherent,
| ^~~~~~~~~~~~~~~~
drivers/iommu/io-pgtable-arm.c:1098:37: warning: excess elements in struct initializer
1098 | .is_iova_coherent = arm_lpae_is_iova_coherent,
| ^~~~~~~~~~~~~~~~~~~~~~~~~
drivers/iommu/io-pgtable-arm.c:1098:37: note: (near initialization for '(anonymous)')
drivers/iommu/io-pgtable-arm.c:1099:18: error: 'struct io_pgtable_ops' has no member named 'iova_to_pte'; did you mean 'iova_to_phys'?
1099 | .iova_to_pte = arm_lpae_iova_get_pte,
| ^~~~~~~~~~~
| iova_to_phys
drivers/iommu/io-pgtable-arm.c:1099:35: warning: excess elements in struct initializer
1099 | .iova_to_pte = arm_lpae_iova_get_pte,
| ^~~~~~~~~~~~~~~~~~~~~
drivers/iommu/io-pgtable-arm.c:1099:35: note: (near initialization for '(anonymous)')
drivers/iommu/io-pgtable-arm.c: In function 'arm_64_lpae_alloc_pgtable_s1':
drivers/iommu/io-pgtable-arm.c:1113:29: error: 'IO_PGTABLE_QUIRK_QCOM_USE_UPSTREAM_HINT' undeclared (first use in this function)
1113 | | IO_PGTABLE_QUIRK_QCOM_USE_UPSTREAM_HINT
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/iommu/io-pgtable-arm.c:1114:29: error: 'IO_PGTABLE_QUIRK_QSMMUV500_NON_SHAREABLE' undeclared (first use in this function)
1114 | | IO_PGTABLE_QUIRK_QSMMUV500_NON_SHAREABLE
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/iommu/io-pgtable-arm.c:1115:29: error: 'IO_PGTABLE_QUIRK_QCOM_USE_LLC_NWA' undeclared (first use in this function)
1115 | | IO_PGTABLE_QUIRK_QCOM_USE_LLC_NWA))
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors

vim +/iommu_pgsize +666 drivers/iommu/io-pgtable-arm.c

546
547 static arm_lpae_iopte arm_lpae_prot_to_pte(struct arm_lpae_io_pgtable *data,
548 int prot)
549 {
550 arm_lpae_iopte pte;
551
552 if (data->iop.fmt == ARM_64_LPAE_S1 ||
553 data->iop.fmt == ARM_32_LPAE_S1) {
554 pte = ARM_LPAE_PTE_nG;
555
556 if (prot & IOMMU_WRITE)
557 pte |= (prot & IOMMU_PRIV) ? ARM_LPAE_PTE_AP_PRIV_RW
558 : ARM_LPAE_PTE_AP_UNPRIV;
559 else
560 pte |= (prot & IOMMU_PRIV) ? ARM_LPAE_PTE_AP_PRIV_RO
561 : ARM_LPAE_PTE_AP_RO;
562
563 if (!(prot & IOMMU_PRIV))
564 pte |= ARM_LPAE_PTE_AP_UNPRIV;
565
566 if (prot & IOMMU_MMIO)
567 pte |= (ARM_LPAE_MAIR_ATTR_IDX_DEV
568 << ARM_LPAE_PTE_ATTRINDX_SHIFT);
569 else if (prot & IOMMU_CACHE)
570 pte |= (ARM_LPAE_MAIR_ATTR_IDX_CACHE
571 << ARM_LPAE_PTE_ATTRINDX_SHIFT);
> 572 else if (prot & IOMMU_USE_UPSTREAM_HINT)
573 pte |= (ARM_LPAE_MAIR_ATTR_IDX_UPSTREAM
574 << ARM_LPAE_PTE_ATTRINDX_SHIFT);
575 else if (prot & IOMMU_USE_LLC_NWA)
576 pte |= (ARM_LPAE_MAIR_ATTR_IDX_LLC_NWA
577 << ARM_LPAE_PTE_ATTRINDX_SHIFT);
578 } else {
579 pte = ARM_LPAE_PTE_HAP_FAULT;
580 if (prot & IOMMU_READ)
581 pte |= ARM_LPAE_PTE_HAP_READ;
582 if (prot & IOMMU_WRITE)
583 pte |= ARM_LPAE_PTE_HAP_WRITE;
584 if (prot & IOMMU_MMIO)
585 pte |= ARM_LPAE_PTE_MEMATTR_DEV;
586 else if (prot & IOMMU_CACHE)
587 pte |= ARM_LPAE_PTE_MEMATTR_OIWB;
588 else
589 pte |= ARM_LPAE_PTE_MEMATTR_NC;
590 }
591
592 if (prot & IOMMU_NOEXEC)
593 pte |= ARM_LPAE_PTE_XN;
594
595 return pte;
596 }
597
598 static int arm_lpae_map(struct io_pgtable_ops *ops, unsigned long iova,
599 phys_addr_t paddr, size_t size, int iommu_prot)
600 {
601 struct arm_lpae_io_pgtable *data = io_pgtable_ops_to_data(ops);
602 arm_lpae_iopte *ptep = data->pgd;
603 int ret, lvl = ARM_LPAE_START_LVL(data);
604 arm_lpae_iopte prot;
605
606 /* If no access, then nothing to do */
607 if (!(iommu_prot & (IOMMU_READ | IOMMU_WRITE)))
608 return 0;
609
610 if (WARN_ON(iova >= (1ULL << data->iop.cfg.ias) ||
611 paddr >= (1ULL << data->iop.cfg.oas)))
612 return -ERANGE;
613
614 prot = arm_lpae_prot_to_pte(data, iommu_prot);
615 ret = __arm_lpae_map(data, iova, paddr, size, prot, lvl, ptep, NULL,
616 NULL);
617 /*
618 * Synchronise all PTE updates for the new mapping before there's
619 * a chance for anything to kick off a table walk for the new iova.
620 */
621 wmb();
622
623 return ret;
624 }
625
626 static int arm_lpae_map_sg(struct io_pgtable_ops *ops, unsigned long iova,
627 struct scatterlist *sg, unsigned int nents,
628 int iommu_prot, size_t *size)
629 {
630 struct arm_lpae_io_pgtable *data = io_pgtable_ops_to_data(ops);
631 arm_lpae_iopte *ptep = data->pgd;
632 int lvl = ARM_LPAE_START_LVL(data);
633 arm_lpae_iopte prot;
634 struct scatterlist *s;
635 size_t mapped = 0;
636 int i;
637 int ret = -EINVAL;
638 unsigned int min_pagesz;
639 struct io_pgtable_cfg *cfg = &data->iop.cfg;
640 struct map_state ms;
641
642 /* If no access, then nothing to do */
643 if (!(iommu_prot & (IOMMU_READ | IOMMU_WRITE)))
644 goto out_err;
645
646 prot = arm_lpae_prot_to_pte(data, iommu_prot);
647
648 min_pagesz = 1 << __ffs(cfg->pgsize_bitmap);
649
650 memset(&ms, 0, sizeof(ms));
651
652 for_each_sg(sg, s, nents, i) {
653 phys_addr_t phys = page_to_phys(sg_page(s)) + s->offset;
654 size_t size = s->length;
655
656 /*
657 * We are mapping on IOMMU page boundaries, so offset within
658 * the page must be 0. However, the IOMMU may support pages
659 * smaller than PAGE_SIZE, so s->offset may still represent
660 * an offset of that boundary within the CPU page.
661 */
662 if (!IS_ALIGNED(s->offset, min_pagesz))
663 goto out_err;
664
665 while (size) {
> 666 size_t pgsize = iommu_pgsize(
667 cfg->pgsize_bitmap, iova | phys, size);
668
669 if (ms.pgtable && (iova < ms.iova_end)) {
670 arm_lpae_iopte *ptep = ms.pgtable +
671 ARM_LPAE_LVL_IDX(iova, MAP_STATE_LVL,
672 data);
673 arm_lpae_init_pte(
674 data, iova, phys, prot, MAP_STATE_LVL,
675 ptep, ms.prev_pgtable, false);
676 ms.num_pte++;
677 } else {
678 ret = __arm_lpae_map(data, iova, phys, pgsize,
679 prot, lvl, ptep, NULL, &ms);
680 if (ret)
681 goto out_err;
682 }
683
684 iova += pgsize;
685 mapped += pgsize;
686 phys += pgsize;
687 size -= pgsize;
688 }
689 }
690
691 if (ms.pgtable)
692 pgtable_dma_sync_single_for_device(cfg,
693 __arm_lpae_dma_addr(ms.pte_start),
694 ms.num_pte * sizeof(*ms.pte_start),
695 DMA_TO_DEVICE);
696
697 /*
698 * Synchronise all PTE updates for the new mapping before there's
699 * a chance for anything to kick off a table walk for the new iova.
700 */
701 wmb();
702
703 return mapped;
704
705 out_err:
706 /* Return the size of the partial mapping so that they can be undone */
707 *size = mapped;
708 return ret;
709 }
710

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx

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