From: Christoph Hellwig <hch@lst.de> To: "Jérôme Glisse" <jglisse@redhat.com>, "Jason Gunthorpe" <jgg@mellanox.com>, "Ben Skeggs" <bskeggs@redhat.com>, "Felix Kuehling" <Felix.Kuehling@amd.com> Cc: Ralph Campbell <rcampbell@nvidia.com>, linux-mm@kvack.org, nouveau@lists.freedesktop.org, dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH 09/13] mm: don't abuse pte_index() in hmm_vma_handle_pmd Date: Tue, 30 Jul 2019 08:51:59 +0300 [thread overview] Message-ID: <20190730055203.28467-10-hch@lst.de> (raw) In-Reply-To: <20190730055203.28467-1-hch@lst.de> pte_index is an internal arch helper in various architectures, without consistent semantics. Open code that calculation of a PMD index based on the virtual address instead. Signed-off-by: Christoph Hellwig <hch@lst.de> --- mm/hmm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/hmm.c b/mm/hmm.c index 88b77a4a6a1e..e63ab7f11334 100644 --- a/mm/hmm.c +++ b/mm/hmm.c @@ -486,7 +486,7 @@ static int hmm_vma_handle_pmd(struct mm_walk *walk, if (pmd_protnone(pmd) || fault || write_fault) return hmm_vma_walk_hole_(addr, end, fault, write_fault, walk); - pfn = pmd_pfn(pmd) + pte_index(addr); + pfn = pmd_pfn(pmd) + ((addr & ~PMD_MASK) >> PAGE_SHIFT); for (i = 0; addr < end; addr += PAGE_SIZE, i++, pfn++) { if (pmd_devmap(pmd)) { pgmap = get_dev_pagemap(pfn, pgmap); -- 2.20.1
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org> To: "Jérôme Glisse" <jglisse-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>, "Jason Gunthorpe" <jgg-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>, "Ben Skeggs" <bskeggs-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>, "Felix Kuehling" <Felix.Kuehling-5C7GfCeVMHo@public.gmane.org> Cc: Ralph Campbell <rcampbell-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>, nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org, dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Subject: [PATCH 09/13] mm: don't abuse pte_index() in hmm_vma_handle_pmd Date: Tue, 30 Jul 2019 08:51:59 +0300 [thread overview] Message-ID: <20190730055203.28467-10-hch@lst.de> (raw) In-Reply-To: <20190730055203.28467-1-hch-jcswGhMUV9g@public.gmane.org> pte_index is an internal arch helper in various architectures, without consistent semantics. Open code that calculation of a PMD index based on the virtual address instead. Signed-off-by: Christoph Hellwig <hch@lst.de> --- mm/hmm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/hmm.c b/mm/hmm.c index 88b77a4a6a1e..e63ab7f11334 100644 --- a/mm/hmm.c +++ b/mm/hmm.c @@ -486,7 +486,7 @@ static int hmm_vma_handle_pmd(struct mm_walk *walk, if (pmd_protnone(pmd) || fault || write_fault) return hmm_vma_walk_hole_(addr, end, fault, write_fault, walk); - pfn = pmd_pfn(pmd) + pte_index(addr); + pfn = pmd_pfn(pmd) + ((addr & ~PMD_MASK) >> PAGE_SHIFT); for (i = 0; addr < end; addr += PAGE_SIZE, i++, pfn++) { if (pmd_devmap(pmd)) { pgmap = get_dev_pagemap(pfn, pgmap); -- 2.20.1 _______________________________________________ Nouveau mailing list Nouveau@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/nouveau
next prev parent reply other threads:[~2019-07-30 5:52 UTC|newest] Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-07-30 5:51 hmm_range_fault related fixes and legacy API removal v3 Christoph Hellwig 2019-07-30 5:51 ` [PATCH 01/13] amdgpu: remove -EAGAIN handling for hmm_range_fault Christoph Hellwig 2019-07-30 12:33 ` Jason Gunthorpe 2019-07-31 13:13 ` Kuehling, Felix 2019-07-30 5:51 ` [PATCH 02/13] amdgpu: don't initialize range->list in amdgpu_hmm_init_range Christoph Hellwig 2019-07-30 5:51 ` Christoph Hellwig 2019-07-30 12:33 ` Jason Gunthorpe 2019-07-30 12:33 ` Jason Gunthorpe 2019-07-31 13:25 ` Kuehling, Felix 2019-07-31 17:02 ` Jason Gunthorpe 2019-07-31 17:02 ` Jason Gunthorpe 2019-07-30 5:51 ` [PATCH 03/13] nouveau: pass struct nouveau_svmm to nouveau_range_fault Christoph Hellwig 2019-07-30 5:51 ` Christoph Hellwig 2019-07-30 12:35 ` Jason Gunthorpe 2019-07-30 13:10 ` Christoph Hellwig 2019-07-30 13:14 ` Jason Gunthorpe 2019-07-30 14:40 ` Christoph Hellwig 2019-07-30 5:51 ` [PATCH 04/13] mm: remove the pgmap field from struct hmm_vma_walk Christoph Hellwig 2019-07-30 5:51 ` Christoph Hellwig 2019-07-30 5:51 ` [PATCH 05/13] mm: remove the unused vma argument to hmm_range_dma_unmap Christoph Hellwig 2019-07-30 5:51 ` Christoph Hellwig 2019-07-30 12:45 ` Jason Gunthorpe 2019-07-30 5:51 ` [PATCH 06/13] mm: remove superflous arguments from hmm_range_register Christoph Hellwig 2019-07-30 17:51 ` Jason Gunthorpe 2019-07-31 13:31 ` Kuehling, Felix 2019-07-31 13:31 ` Kuehling, Felix 2019-07-30 5:51 ` [PATCH 07/13] mm: remove the page_shift member from struct hmm_range Christoph Hellwig 2019-07-30 5:51 ` Christoph Hellwig 2019-07-30 12:55 ` Jason Gunthorpe 2019-07-30 13:14 ` Christoph Hellwig 2019-07-30 17:50 ` Jason Gunthorpe 2019-08-01 6:49 ` Christoph Hellwig 2019-07-31 13:38 ` Kuehling, Felix 2019-07-30 5:51 ` [PATCH 08/13] mm: remove the mask variable in hmm_vma_walk_hugetlb_entry Christoph Hellwig 2019-07-30 5:51 ` Christoph Hellwig 2019-07-30 17:39 ` Jason Gunthorpe 2019-07-30 17:39 ` Jason Gunthorpe 2019-07-31 1:01 ` Ralph Campbell 2019-07-31 1:01 ` Ralph Campbell 2019-07-30 5:51 ` Christoph Hellwig [this message] 2019-07-30 5:51 ` [PATCH 09/13] mm: don't abuse pte_index() in hmm_vma_handle_pmd Christoph Hellwig 2019-07-30 5:52 ` [PATCH 10/13] mm: only define hmm_vma_walk_pud if needed Christoph Hellwig 2019-07-30 5:52 ` Christoph Hellwig 2019-07-30 18:02 ` Jason Gunthorpe 2019-07-30 5:52 ` [PATCH 11/13] mm: cleanup the hmm_vma_handle_pmd stub Christoph Hellwig 2019-07-30 5:52 ` Christoph Hellwig 2019-07-30 17:53 ` Jason Gunthorpe 2019-07-30 17:53 ` Jason Gunthorpe 2019-08-01 7:01 ` Christoph Hellwig 2019-07-30 5:52 ` [PATCH 12/13] mm: cleanup the hmm_vma_walk_hugetlb_entry stub Christoph Hellwig 2019-07-30 5:52 ` Christoph Hellwig 2019-07-30 18:02 ` Jason Gunthorpe 2019-07-30 5:52 ` [PATCH 13/13] mm: allow HMM_MIRROR on all architectures with MMU Christoph Hellwig 2019-07-30 5:52 ` Christoph Hellwig 2019-07-30 18:03 ` Jason Gunthorpe 2019-07-30 18:04 ` Jason Gunthorpe 2019-08-01 7:04 ` Christoph Hellwig 2019-08-01 7:04 ` Christoph Hellwig
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