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Message-ID: <202209290917.kb4F0I2v-lkp@intel.com>
Date: Thu, 29 Sep 2022 10:12:25 +0800
From: kernel test robot <lkp@...el.com>
To: Hector Martin <marcan@...can.st>
Cc: llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
linux-kernel@...r.kernel.org
Subject: [asahilinux:bits/020-t6000-dart 8/12]
drivers/iommu/apple-dart.c:345:41: error: incompatible pointer types passing
'atomic_long_t *' (aka 'atomic_t *') to parameter of type 'const atomic64_t
*'
tree: https://github.com/AsahiLinux/linux bits/020-t6000-dart
head: 259619009267c0042a370b4296bc5208ed78e141
commit: 85a6a15d9e41fa68a42bf3df621ce24e15ea89ae [8/12] iommu: dart: Support >64 stream IDs
config: arm-buildonly-randconfig-r002-20220925
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920)
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
# install arm cross compiling tool for clang build
# apt-get install binutils-arm-linux-gnueabi
# https://github.com/AsahiLinux/linux/commit/85a6a15d9e41fa68a42bf3df621ce24e15ea89ae
git remote add asahilinux https://github.com/AsahiLinux/linux
git fetch --no-tags asahilinux bits/020-t6000-dart
git checkout 85a6a15d9e41fa68a42bf3df621ce24e15ea89ae
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash drivers/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
>> drivers/iommu/apple-dart.c:345:41: error: incompatible pointer types passing 'atomic_long_t *' (aka 'atomic_t *') to parameter of type 'const atomic64_t *' [-Werror,-Wincompatible-pointer-types]
stream_map.sidmap[j] = atomic64_read(&domain_stream_map->sidmap[j]);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/atomic/atomic-instrumented.h:644:33: note: passing argument to parameter 'v' here
atomic64_read(const atomic64_t *v)
^
>> drivers/iommu/apple-dart.c:441:17: error: incompatible pointer types passing 'atomic_long_t *' (aka 'atomic_t *') to parameter of type 'atomic64_t *' [-Werror,-Wincompatible-pointer-types]
atomic64_set(&dart_domain->stream_maps[i].sidmap[j],
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/atomic/atomic-instrumented.h:658:26: note: passing argument to parameter 'v' here
atomic64_set(atomic64_t *v, s64 i)
^
drivers/iommu/apple-dart.c:490:10: error: incompatible pointer types passing 'atomic_long_t *' (aka 'atomic_t *') to parameter of type 'atomic64_t *' [-Werror,-Wincompatible-pointer-types]
&domain_maps[i].sidmap[j]);
^~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/atomic/atomic-instrumented.h:1015:32: note: passing argument to parameter 'v' here
atomic64_or(s64 i, atomic64_t *v)
^
drivers/iommu/apple-dart.c:493:11: error: incompatible pointer types passing 'atomic_long_t *' (aka 'atomic_t *') to parameter of type 'atomic64_t *' [-Werror,-Wincompatible-pointer-types]
&domain_maps[i].sidmap[j]);
^~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/atomic/atomic-instrumented.h:941:33: note: passing argument to parameter 'v' here
atomic64_and(s64 i, atomic64_t *v)
^
4 errors generated.
Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for TEGRA20_APB_DMA
Depends on [n]: DMADEVICES [=n] && (ARCH_TEGRA [=y] || COMPILE_TEST [=y])
Selected by [y]:
- SOC_TEGRA_FUSE [=y] && ARCH_TEGRA [=y] && ARCH_TEGRA_2x_SOC [=y]
vim +345 drivers/iommu/apple-dart.c
334
335 static void apple_dart_domain_flush_tlb(struct apple_dart_domain *domain)
336 {
337 int i, j;
338 struct apple_dart_atomic_stream_map *domain_stream_map;
339 struct apple_dart_stream_map stream_map;
340
341 for_each_stream_map(i, domain, domain_stream_map) {
342 stream_map.dart = domain_stream_map->dart;
343
344 for (j = 0; j < BITS_TO_LONGS(stream_map.dart->num_streams); j++)
> 345 stream_map.sidmap[j] = atomic64_read(&domain_stream_map->sidmap[j]);
346
347 apple_dart_hw_invalidate_tlb(&stream_map);
348 }
349 }
350
351 static void apple_dart_flush_iotlb_all(struct iommu_domain *domain)
352 {
353 apple_dart_domain_flush_tlb(to_dart_domain(domain));
354 }
355
356 static void apple_dart_iotlb_sync(struct iommu_domain *domain,
357 struct iommu_iotlb_gather *gather)
358 {
359 apple_dart_domain_flush_tlb(to_dart_domain(domain));
360 }
361
362 static void apple_dart_iotlb_sync_map(struct iommu_domain *domain,
363 unsigned long iova, size_t size)
364 {
365 apple_dart_domain_flush_tlb(to_dart_domain(domain));
366 }
367
368 static phys_addr_t apple_dart_iova_to_phys(struct iommu_domain *domain,
369 dma_addr_t iova)
370 {
371 struct apple_dart_domain *dart_domain = to_dart_domain(domain);
372 struct io_pgtable_ops *ops = dart_domain->pgtbl_ops;
373
374 if (!ops)
375 return 0;
376
377 return ops->iova_to_phys(ops, iova);
378 }
379
380 static int apple_dart_map_pages(struct iommu_domain *domain, unsigned long iova,
381 phys_addr_t paddr, size_t pgsize,
382 size_t pgcount, int prot, gfp_t gfp,
383 size_t *mapped)
384 {
385 struct apple_dart_domain *dart_domain = to_dart_domain(domain);
386 struct io_pgtable_ops *ops = dart_domain->pgtbl_ops;
387
388 if (!ops)
389 return -ENODEV;
390
391 return ops->map_pages(ops, iova, paddr, pgsize, pgcount, prot, gfp,
392 mapped);
393 }
394
395 static size_t apple_dart_unmap_pages(struct iommu_domain *domain,
396 unsigned long iova, size_t pgsize,
397 size_t pgcount,
398 struct iommu_iotlb_gather *gather)
399 {
400 struct apple_dart_domain *dart_domain = to_dart_domain(domain);
401 struct io_pgtable_ops *ops = dart_domain->pgtbl_ops;
402
403 return ops->unmap_pages(ops, iova, pgsize, pgcount, gather);
404 }
405
406 static void
407 apple_dart_setup_translation(struct apple_dart_domain *domain,
408 struct apple_dart_stream_map *stream_map)
409 {
410 int i;
411 struct io_pgtable_cfg *pgtbl_cfg =
412 &io_pgtable_ops_to_pgtable(domain->pgtbl_ops)->cfg;
413
414 for (i = 0; i < pgtbl_cfg->apple_dart_cfg.n_ttbrs; ++i)
415 apple_dart_hw_set_ttbr(stream_map, i,
416 pgtbl_cfg->apple_dart_cfg.ttbr[i]);
417 for (; i < DART_MAX_TTBR; ++i)
418 apple_dart_hw_clear_ttbr(stream_map, i);
419
420 apple_dart_hw_enable_translation(stream_map);
421 apple_dart_hw_invalidate_tlb(stream_map);
422 }
423
424 static int apple_dart_finalize_domain(struct iommu_domain *domain,
425 struct apple_dart_master_cfg *cfg)
426 {
427 struct apple_dart_domain *dart_domain = to_dart_domain(domain);
428 struct apple_dart *dart = cfg->stream_maps[0].dart;
429 struct io_pgtable_cfg pgtbl_cfg;
430 int ret = 0;
431 int i, j;
432
433 mutex_lock(&dart_domain->init_lock);
434
435 if (dart_domain->finalized)
436 goto done;
437
438 for (i = 0; i < MAX_DARTS_PER_DEVICE; ++i) {
439 dart_domain->stream_maps[i].dart = cfg->stream_maps[i].dart;
440 for (j = 0; j < BITS_TO_LONGS(dart->num_streams); j++)
> 441 atomic64_set(&dart_domain->stream_maps[i].sidmap[j],
442 cfg->stream_maps[i].sidmap[j]);
443 }
444
445 pgtbl_cfg = (struct io_pgtable_cfg){
446 .pgsize_bitmap = dart->pgsize,
447 .ias = 32,
448 .oas = dart->hw->oas,
449 .coherent_walk = 1,
450 .iommu_dev = dart->dev,
451 };
452
453 dart_domain->pgtbl_ops =
454 alloc_io_pgtable_ops(dart->hw->fmt, &pgtbl_cfg, domain);
455 if (!dart_domain->pgtbl_ops) {
456 ret = -ENOMEM;
457 goto done;
458 }
459
460 domain->pgsize_bitmap = pgtbl_cfg.pgsize_bitmap;
461 domain->geometry.aperture_start = 0;
462 domain->geometry.aperture_end = DMA_BIT_MASK(32);
463 domain->geometry.force_aperture = true;
464
465 dart_domain->finalized = true;
466
467 done:
468 mutex_unlock(&dart_domain->init_lock);
469 return ret;
470 }
471
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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