From: kernel test robot <lkp@intel.com>
To: Bob Zhou <bob.zhou@amd.com>
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev
Subject: [agd5f:baseline0 3225/3826] drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c:790:5: error: redefinition of 'amdgpu_hmm_register'
Date: Sat, 07 Feb 2026 18:32:21 +0800 [thread overview]
Message-ID: <202602071847.ahTWTOPu-lkp@intel.com> (raw)
tree: https://gitlab.freedesktop.org/agd5f/linux.git baseline0
head: b6a8211a7821bf70201912b493ab705f423700c7
commit: c3ae2851e95176316859bc6300f80759e2bc3db7 [3225/3826] Bump AMDGPU version to 6.18.0
config: sparc64-randconfig-002-20260207 (https://download.01.org/0day-ci/archive/20260207/202602071847.ahTWTOPu-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260207/202602071847.ahTWTOPu-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202602071847.ahTWTOPu-lkp@intel.com/
All errors (new ones prefixed by >>):
>> drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c:790:5: error: redefinition of 'amdgpu_hmm_register'
790 | int amdgpu_hmm_register(struct amdgpu_bo *bo, unsigned long addr)
| ^
drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu_hmm.h:102:19: note: previous definition is here
102 | static inline int amdgpu_hmm_register(struct amdgpu_bo *bo, unsigned long addr)
| ^
>> drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c:820:6: error: redefinition of 'amdgpu_hmm_unregister'
820 | void amdgpu_hmm_unregister(struct amdgpu_bo *bo)
| ^
drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu_hmm.h:109:20: note: previous definition is here
109 | static inline void amdgpu_hmm_unregister(struct amdgpu_bo *bo) {}
| ^
>> drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c:937:6: error: redefinition of 'amdgpu_hmm_range_valid'
937 | bool amdgpu_hmm_range_valid(struct amdgpu_hmm_range *range)
| ^
drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu_hmm.h:111:20: note: previous definition is here
111 | static inline bool amdgpu_hmm_range_valid(struct amdgpu_hmm_range *range)
| ^
>> drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c:957:26: error: redefinition of 'amdgpu_hmm_range_alloc'
957 | struct amdgpu_hmm_range *amdgpu_hmm_range_alloc(struct amdgpu_bo *bo)
| ^
drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu_hmm.h:116:40: note: previous definition is here
116 | static inline struct amdgpu_hmm_range *amdgpu_hmm_range_alloc(struct amdgpu_bo *bo)
| ^
>> drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c:978:6: error: redefinition of 'amdgpu_hmm_range_free'
978 | void amdgpu_hmm_range_free(struct amdgpu_hmm_range *range)
| ^
drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu_hmm.h:121:20: note: previous definition is here
121 | static inline void amdgpu_hmm_range_free(struct amdgpu_hmm_range *range) {}
| ^
5 errors generated.
vim +/amdgpu_hmm_register +790 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c
ae20f12d2de662 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Christian König 2016-03-18 780
d38ceaf99ed015 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Alex Deucher 2015-04-20 781 /**
d9483ecd327b75 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Christian König 2022-11-09 782 * amdgpu_hmm_register - register a BO for notifier updates
d38ceaf99ed015 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Alex Deucher 2015-04-20 783 *
d38ceaf99ed015 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Alex Deucher 2015-04-20 784 * @bo: amdgpu buffer object
d38ceaf99ed015 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Alex Deucher 2015-04-20 785 * @addr: userptr addr we should monitor
d38ceaf99ed015 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Alex Deucher 2015-04-20 786 *
62914a99dee5ac drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Jason Gunthorpe 2019-11-12 787 * Registers a mmu_notifier for the given BO at the specified address.
d38ceaf99ed015 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Alex Deucher 2015-04-20 788 * Returns 0 on success, -ERRNO if anything goes wrong.
d38ceaf99ed015 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Alex Deucher 2015-04-20 789 */
d9483ecd327b75 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Christian König 2022-11-09 @790 int amdgpu_hmm_register(struct amdgpu_bo *bo, unsigned long addr)
d38ceaf99ed015 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Alex Deucher 2015-04-20 791 {
22207fd5c80177 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Vitaly Prosyak 2024-03-06 792 int r;
22207fd5c80177 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Vitaly Prosyak 2024-03-06 793
62914a99dee5ac drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Jason Gunthorpe 2019-11-12 794 if (bo->kfd_bo)
22207fd5c80177 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Vitaly Prosyak 2024-03-06 795 r = mmu_interval_notifier_insert(&bo->notifier, current->mm,
81fa1af31b5d79 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Jason Gunthorpe 2019-11-12 796 addr, amdgpu_bo_size(bo),
d9483ecd327b75 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Christian König 2022-11-09 797 &amdgpu_hmm_hsa_ops);
22207fd5c80177 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Vitaly Prosyak 2024-03-06 798 else
22207fd5c80177 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Vitaly Prosyak 2024-03-06 799 r = mmu_interval_notifier_insert(&bo->notifier, current->mm, addr,
81fa1af31b5d79 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Jason Gunthorpe 2019-11-12 800 amdgpu_bo_size(bo),
d9483ecd327b75 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Christian König 2022-11-09 801 &amdgpu_hmm_gfx_ops);
22207fd5c80177 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Vitaly Prosyak 2024-03-06 802 if (r)
22207fd5c80177 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Vitaly Prosyak 2024-03-06 803 /*
22207fd5c80177 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Vitaly Prosyak 2024-03-06 804 * Make sure amdgpu_hmm_unregister() doesn't call
22207fd5c80177 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Vitaly Prosyak 2024-03-06 805 * mmu_interval_notifier_remove() when the notifier isn't properly
22207fd5c80177 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Vitaly Prosyak 2024-03-06 806 * initialized.
22207fd5c80177 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Vitaly Prosyak 2024-03-06 807 */
22207fd5c80177 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Vitaly Prosyak 2024-03-06 808 bo->notifier.mm = NULL;
22207fd5c80177 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Vitaly Prosyak 2024-03-06 809
22207fd5c80177 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Vitaly Prosyak 2024-03-06 810 return r;
d38ceaf99ed015 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Alex Deucher 2015-04-20 811 }
d38ceaf99ed015 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Alex Deucher 2015-04-20 812
d38ceaf99ed015 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Alex Deucher 2015-04-20 813 /**
d9483ecd327b75 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Christian König 2022-11-09 814 * amdgpu_hmm_unregister - unregister a BO for notifier updates
d38ceaf99ed015 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Alex Deucher 2015-04-20 815 *
d38ceaf99ed015 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Alex Deucher 2015-04-20 816 * @bo: amdgpu buffer object
d38ceaf99ed015 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Alex Deucher 2015-04-20 817 *
62914a99dee5ac drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Jason Gunthorpe 2019-11-12 818 * Remove any registration of mmu notifier updates from the buffer object.
d38ceaf99ed015 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Alex Deucher 2015-04-20 819 */
d9483ecd327b75 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Christian König 2022-11-09 @820 void amdgpu_hmm_unregister(struct amdgpu_bo *bo)
d38ceaf99ed015 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Alex Deucher 2015-04-20 821 {
62914a99dee5ac drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Jason Gunthorpe 2019-11-12 822 if (!bo->notifier.mm)
d38ceaf99ed015 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Alex Deucher 2015-04-20 823 return;
62914a99dee5ac drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Jason Gunthorpe 2019-11-12 824 mmu_interval_notifier_remove(&bo->notifier);
62914a99dee5ac drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Jason Gunthorpe 2019-11-12 825 bo->notifier.mm = NULL;
d38ceaf99ed015 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Alex Deucher 2015-04-20 826 }
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 827
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 828 #ifndef HAVE_HMM_DROP_CUSTOMIZABLE_PFN_FORMAT
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 829 /* flags used by HMM internal, not related to CPU/GPU PTE flags */
95e6713f2f51ef drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2021-04-30 830 const uint64_t hmm_range_flags[HMM_PFN_FLAG_MAX] = {
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 831 (1 << 0), /* HMM_PFN_VALID */
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 832 (1 << 1), /* HMM_PFN_WRITE */
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 833 0 /* HMM_PFN_DEVICE_PRIVATE */
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 834 };
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 835
95e6713f2f51ef drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2021-04-30 836 const uint64_t hmm_range_values[HMM_PFN_VALUE_MAX] = {
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 837 0xfffffffffffffffeUL, /* HMM_PFN_ERROR */
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 838 0, /* HMM_PFN_NONE */
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 839 0xfffffffffffffffcUL /* HMM_PFN_SPECIAL */
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 840 };
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 841 #endif
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 842
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 843 int amdgpu_hmm_range_get_pages(struct mmu_interval_notifier *notifier,
d4cbff464d2932 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Christian König 2022-11-09 844 uint64_t start, uint64_t npages, bool readonly,
c5b3cc417b0260 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-09-17 845 void *owner,
737da5363cc07c drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-10 846 struct amdgpu_hmm_range *range)
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 847 {
c1420a5dd4dd2a drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c James Zhu 2022-11-17 848 unsigned long end;
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 849 unsigned long timeout;
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 850 unsigned long *pfns;
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 851 int r = 0;
737da5363cc07c drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-10 852 struct hmm_range *hmm_range = &range->hmm_range;
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 853
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 854 pfns = kvmalloc_array(npages, sizeof(*pfns), GFP_KERNEL);
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 855 if (unlikely(!pfns)) {
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 856 r = -ENOMEM;
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 857 goto out_free_range;
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 858 }
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 859
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 860 hmm_range->notifier = notifier;
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 861 #ifndef HAVE_HMM_DROP_CUSTOMIZABLE_PFN_FORMAT
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 862 hmm_range->flags = hmm_range_flags;
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 863 hmm_range->values = hmm_range_values;
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 864 hmm_range->pfn_shift = PAGE_SHIFT;
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 865 hmm_range->default_flags = hmm_range_flags[HMM_PFN_VALID];
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 866 if (!readonly)
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 867 hmm_range->default_flags |= hmm_range->flags[HMM_PFN_WRITE];
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 868 hmm_range->pfns = (uint64_t *)pfns;
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 869 #else
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 870 hmm_range->default_flags = HMM_PFN_REQ_FAULT;
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 871 if (!readonly)
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 872 hmm_range->default_flags |= HMM_PFN_REQ_WRITE;
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 873 hmm_range->hmm_pfns = pfns;
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 874 #endif
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 875 hmm_range->start = start;
c1420a5dd4dd2a drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c James Zhu 2022-11-17 876 end = start + npages * PAGE_SIZE;
8c21fc49a8e637 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Alex Sierra 2021-05-06 877 hmm_range->dev_private_owner = owner;
d8a3c1c80ceb65 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2021-03-30 878
c1420a5dd4dd2a drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c James Zhu 2022-11-17 879 do {
c1420a5dd4dd2a drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c James Zhu 2022-11-17 880 hmm_range->end = min(hmm_range->start + MAX_WALK_BYTE, end);
c1420a5dd4dd2a drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c James Zhu 2022-11-17 881
c1420a5dd4dd2a drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c James Zhu 2022-11-17 882 pr_debug("hmm range: start = 0x%lx, end = 0x%lx",
c1420a5dd4dd2a drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c James Zhu 2022-11-17 883 hmm_range->start, hmm_range->end);
c1420a5dd4dd2a drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c James Zhu 2022-11-17 884
9095e5544061b1 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Philip Yang 2024-04-30 885 timeout = jiffies + msecs_to_jiffies(HMM_RANGE_DEFAULT_TIMEOUT);
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 886
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 887 retry:
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 888 hmm_range->notifier_seq = mmu_interval_read_begin(notifier);
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 889 r = hmm_range_fault(hmm_range);
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 890 #ifndef HAVE_HMM_DROP_CUSTOMIZABLE_PFN_FORMAT
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 891 if (unlikely(r <= 0)) {
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 892 #else
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 893 if (unlikely(r)) {
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 894 #endif
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 895 #ifndef HAVE_HMM_DROP_CUSTOMIZABLE_PFN_FORMAT
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 896 if ((r == 0 || r == -EBUSY) && !time_after(jiffies, timeout))
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 897 #else
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 898 if (r == -EBUSY && !time_after(jiffies, timeout))
b89f664bf7cf61 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Flora Cui 2020-02-24 899 #endif
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 900 goto retry;
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 901 goto out_free_pfns;
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 902 }
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 903
c1420a5dd4dd2a drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c James Zhu 2022-11-17 904 if (hmm_range->end == end)
c1420a5dd4dd2a drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c James Zhu 2022-11-17 905 break;
c1420a5dd4dd2a drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c James Zhu 2022-11-17 906 hmm_range->hmm_pfns += MAX_WALK_BYTE >> PAGE_SHIFT;
c1420a5dd4dd2a drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c James Zhu 2022-11-17 907 hmm_range->start = hmm_range->end;
c1420a5dd4dd2a drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c James Zhu 2022-11-17 908 } while (hmm_range->end < end);
c1420a5dd4dd2a drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c James Zhu 2022-11-17 909
c1420a5dd4dd2a drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c James Zhu 2022-11-17 910 hmm_range->start = start;
c1420a5dd4dd2a drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c James Zhu 2022-11-17 911 hmm_range->hmm_pfns = pfns;
c1420a5dd4dd2a drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c James Zhu 2022-11-17 912
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 913 return 0;
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 914
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 915 out_free_pfns:
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 916 kvfree(pfns);
dfc74e37bdb487 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Srinivasan Shanmugam 2025-10-23 917 hmm_range->hmm_pfns = NULL;
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 918 out_free_range:
9095e5544061b1 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Philip Yang 2024-04-30 919 if (r == -EBUSY)
9095e5544061b1 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Philip Yang 2024-04-30 920 r = -EAGAIN;
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 921 return r;
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 922 }
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 923
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 924 /**
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 925 * amdgpu_hmm_range_valid - check if an HMM range is still valid
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 926 * @range: pointer to the &struct amdgpu_hmm_range to validate
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 927 *
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 928 * Determines whether the given HMM range @range is still valid by
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 929 * checking for invalidations via the MMU notifier sequence. This is
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 930 * typically used to verify that the range has not been invalidated
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 931 * by concurrent address space updates before it is accessed.
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 932 *
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 933 * Return:
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 934 * * true if @range is valid and can be used safely
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 935 * * false if @range is NULL or has been invalidated
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 936 */
737da5363cc07c drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-10 @937 bool amdgpu_hmm_range_valid(struct amdgpu_hmm_range *range)
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 938 {
737da5363cc07c drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-10 939 if (!range)
b1dd0db1c668a3 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-09-30 940 return false;
04d8d73dbcbe64 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Philip Yang 2020-02-24 941
737da5363cc07c drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-10 942 return !mmu_interval_read_retry(range->hmm_range.notifier,
737da5363cc07c drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-10 943 range->hmm_range.notifier_seq);
b1dd0db1c668a3 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-09-30 944 }
b1dd0db1c668a3 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-09-30 945
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 946 /**
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 947 * amdgpu_hmm_range_alloc - allocate and initialize an AMDGPU HMM range
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 948 * @bo: optional buffer object to associate with this HMM range
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 949 *
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 950 * Allocates memory for amdgpu_hmm_range and associates it with the @bo passed.
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 951 * The reference count of the @bo is incremented.
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 952 *
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 953 * Return:
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 954 * Pointer to a newly allocated struct amdgpu_hmm_range on success,
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 955 * or NULL if memory allocation fails.
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 956 */
737da5363cc07c drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-10 @957 struct amdgpu_hmm_range *amdgpu_hmm_range_alloc(struct amdgpu_bo *bo)
b1dd0db1c668a3 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-09-30 958 {
737da5363cc07c drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-10 959 struct amdgpu_hmm_range *range;
737da5363cc07c drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-10 960
737da5363cc07c drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-10 961 range = kzalloc(sizeof(*range), GFP_KERNEL);
737da5363cc07c drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-10 962 if (!range)
737da5363cc07c drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-10 963 return NULL;
737da5363cc07c drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-10 964
737da5363cc07c drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-10 965 range->bo = amdgpu_bo_ref(bo);
737da5363cc07c drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-10 966 return range;
b1dd0db1c668a3 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-09-30 967 }
b1dd0db1c668a3 drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-09-30 968
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 969 /**
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 970 * amdgpu_hmm_range_free - release an AMDGPU HMM range
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 971 * @range: pointer to the range object to free
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 972 *
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 973 * Releases all resources held by @range, including the associated
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 974 * hmm_pfns and the dropping reference of associated bo if any.
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 975 *
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 976 * Return: void
d5a62b7aa9323f drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-14 977 */
737da5363cc07c drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c Sunil Khatri 2025-10-10 @978 void amdgpu_hmm_range_free(struct amdgpu_hmm_range *range)
:::::: The code at line 790 was first introduced by commit
:::::: d9483ecd327b7537c6a51cab515b5faad21b8200 drm/amdgpu: rename the files for HMM handling
:::::: TO: Christian König <christian.koenig@amd.com>
:::::: CC: Alex Deucher <alexander.deucher@amd.com>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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