From: Ralph Campbell <rcampbell@nvidia.com>
To: Jason Gunthorpe <jgg@ziepe.ca>,
Jerome Glisse <jglisse@redhat.com>, <Felix.Kuehling@amd.com>
Cc: Philip Yang <Philip.Yang@amd.com>,
John Hubbard <jhubbard@nvidia.com>,
amd-gfx@lists.freedesktop.org, linux-mm@kvack.org,
Jason Gunthorpe <jgg@mellanox.com>,
dri-devel@lists.freedesktop.org, Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH v2 hmm 0/9] Small hmm_range_fault() cleanups
Date: Thu, 26 Mar 2020 14:21:00 -0700 [thread overview]
Message-ID: <5e67c250-c9bb-b1e4-76b2-a39fdd662bfe@nvidia.com> (raw)
In-Reply-To: <20200324011457.2817-1-jgg@ziepe.ca>
On 3/23/20 6:14 PM, Jason Gunthorpe wrote:
> From: Jason Gunthorpe <jgg@mellanox.com>
>
> This is v2 of the first simple series with a few additional patches of little
> adjustments.
>
> This needs an additional patch to the hmm tester:
>
> diff --git a/tools/testing/selftests/vm/hmm-tests.c b/tools/testing/selftests/vm/hmm-tests.c
> index 033a12c7ab5b6d..da15471a2bbf9a 100644
> --- a/tools/testing/selftests/vm/hmm-tests.c
> +++ b/tools/testing/selftests/vm/hmm-tests.c
> @@ -1274,7 +1274,7 @@ TEST_F(hmm2, snapshot)
> /* Check what the device saw. */
> m = buffer->mirror;
> ASSERT_EQ(m[0], HMM_DMIRROR_PROT_ERROR);
> - ASSERT_EQ(m[1], HMM_DMIRROR_PROT_NONE);
> + ASSERT_EQ(m[1], HMM_DMIRROR_PROT_ERROR);
> ASSERT_EQ(m[2], HMM_DMIRROR_PROT_ZERO | HMM_DMIRROR_PROT_READ);
> ASSERT_EQ(m[3], HMM_DMIRROR_PROT_READ);
> ASSERT_EQ(m[4], HMM_DMIRROR_PROT_WRITE);
>
> v2 changes:
> - Simplify and rename the flags, rework hmm_vma_walk_test in patch 2 (CH)
> - Adjust more comments in patch 3 (CH, Ralph)
> - Put the ugly boolean logic into a function in patch 3 (CH)
> - Update commit message of patch 4 (CH)
> - Adjust formatting in patch 5 (CH)
> Patches 6, 7, 8 are new
>
> v1: https://lore.kernel.org/r/20200320164905.21722-1-jgg@ziepe.ca
>
> Jason Gunthorpe (9):
> mm/hmm: remove pgmap checking for devmap pages
> mm/hmm: return the fault type from hmm_pte_need_fault()
> mm/hmm: remove unused code and tidy comments
> mm/hmm: remove HMM_FAULT_SNAPSHOT
> mm/hmm: remove the CONFIG_TRANSPARENT_HUGEPAGE #ifdef
> mm/hmm: use device_private_entry_to_pfn()
> mm/hmm: do not unconditionally set pfns when returning EBUSY
> mm/hmm: do not set pfns when returning an error code
> mm/hmm: return error for non-vma snapshots
>
> Documentation/vm/hmm.rst | 12 +-
> drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 2 +-
> drivers/gpu/drm/nouveau/nouveau_svm.c | 2 +-
> include/linux/hmm.h | 109 +--------
> mm/hmm.c | 312 ++++++++++--------------
> 5 files changed, 133 insertions(+), 304 deletions(-)
>
I was able to recompile Karol Herbst's mesa tree and Jerome's SVM tests to
test this with nouveau so for the series you can add,
Tested-by: Ralph Campbell <rcampbell@nvidia.com>
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prev parent reply other threads:[~2020-03-26 21:21 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-24 1:14 [PATCH v2 hmm 0/9] Small hmm_range_fault() cleanups Jason Gunthorpe
2020-03-24 1:14 ` [PATCH v2 hmm 1/9] mm/hmm: remove pgmap checking for devmap pages Jason Gunthorpe
2020-03-24 1:14 ` [PATCH v2 hmm 2/9] mm/hmm: return the fault type from hmm_pte_need_fault() Jason Gunthorpe
2020-03-24 7:27 ` Christoph Hellwig
2020-03-24 18:58 ` Jason Gunthorpe
2020-03-24 1:14 ` [PATCH v2 hmm 3/9] mm/hmm: remove unused code and tidy comments Jason Gunthorpe
2020-03-24 7:27 ` Christoph Hellwig
2020-03-24 1:14 ` [PATCH v2 hmm 4/9] mm/hmm: remove HMM_FAULT_SNAPSHOT Jason Gunthorpe
2020-03-24 7:33 ` Christoph Hellwig
2020-03-24 19:31 ` Jason Gunthorpe
2020-03-24 1:14 ` [PATCH v2 hmm 5/9] mm/hmm: remove the CONFIG_TRANSPARENT_HUGEPAGE #ifdef Jason Gunthorpe
2020-03-24 7:33 ` Christoph Hellwig
2020-03-24 1:14 ` [PATCH v2 hmm 6/9] mm/hmm: use device_private_entry_to_pfn() Jason Gunthorpe
2020-03-24 7:34 ` Christoph Hellwig
2020-03-24 1:14 ` [PATCH v2 hmm 7/9] mm/hmm: do not unconditionally set pfns when returning EBUSY Jason Gunthorpe
2020-03-24 7:37 ` Christoph Hellwig
2020-03-24 15:47 ` Jason Gunthorpe
2020-03-24 1:14 ` [PATCH v2 hmm 8/9] mm/hmm: do not set pfns when returning an error code Jason Gunthorpe
2020-03-24 7:38 ` Christoph Hellwig
2020-03-24 1:14 ` [PATCH v2 hmm 9/9] mm/hmm: return error for non-vma snapshots Jason Gunthorpe
2020-03-24 7:45 ` Christoph Hellwig
2020-03-26 21:21 ` Ralph Campbell [this message]
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