Displaying 19 results from an estimated 19 matches for "thp_migration_support".
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thp_migration_supported
2020 Jun 22
2
[PATCH 13/16] mm: support THP migration to device private memory
...ig_pmd)) {
>>> page = pmd_page(orig_pmd);
>>> + is_anon = PageAnon(page);
>>> page_remove_rmap(page, true);
>>> VM_BUG_ON_PAGE(page_mapcount(page) < 0, page);
>>> VM_BUG_ON_PAGE(!PageHead(page), page);
>>> } else if (thp_migration_supported()) {
>>> swp_entry_t entry;
>>>
>>> - VM_BUG_ON(!is_pmd_migration_entry(orig_pmd));
>>> entry = pmd_to_swp_entry(orig_pmd);
>>> - page = pfn_to_page(swp_offset(entry));
>>> + if (is_device_private_entry(entry)) {
>>> +...
2020 Jun 22
2
[PATCH 13/16] mm: support THP migration to device private memory
...(orig_pmd);
>>>>> + is_anon = PageAnon(page);
>>>>> page_remove_rmap(page, true);
>>>>> VM_BUG_ON_PAGE(page_mapcount(page) < 0, page);
>>>>> VM_BUG_ON_PAGE(!PageHead(page), page);
>>>>> } else if (thp_migration_supported()) {
>>>>> swp_entry_t entry;
>>>>>
>>>>> - VM_BUG_ON(!is_pmd_migration_entry(orig_pmd));
>>>>> entry = pmd_to_swp_entry(orig_pmd);
>>>>> - page = pfn_to_page(swp_offset(entry));
>>>>> + if...
2020 Jun 22
0
[PATCH 13/16] mm: support THP migration to device private memory
...; if (pmd_present(orig_pmd)) {
>> page = pmd_page(orig_pmd);
>> + is_anon = PageAnon(page);
>> page_remove_rmap(page, true);
>> VM_BUG_ON_PAGE(page_mapcount(page) < 0, page);
>> VM_BUG_ON_PAGE(!PageHead(page), page);
>> } else if (thp_migration_supported()) {
>> swp_entry_t entry;
>>
>> - VM_BUG_ON(!is_pmd_migration_entry(orig_pmd));
>> entry = pmd_to_swp_entry(orig_pmd);
>> - page = pfn_to_page(swp_offset(entry));
>> + if (is_device_private_entry(entry)) {
>> + page = device_private_en...
2020 Jun 21
2
[PATCH 13/16] mm: support THP migration to device private memory
...bool is_anon = false;
>
> if (pmd_present(orig_pmd)) {
> page = pmd_page(orig_pmd);
> + is_anon = PageAnon(page);
> page_remove_rmap(page, true);
> VM_BUG_ON_PAGE(page_mapcount(page) < 0, page);
> VM_BUG_ON_PAGE(!PageHead(page), page);
> } else if (thp_migration_supported()) {
> swp_entry_t entry;
>
> - VM_BUG_ON(!is_pmd_migration_entry(orig_pmd));
> entry = pmd_to_swp_entry(orig_pmd);
> - page = pfn_to_page(swp_offset(entry));
> + if (is_device_private_entry(entry)) {
> + page = device_private_entry_to_page(entry);
> +...
2020 Jun 22
0
[PATCH 13/16] mm: support THP migration to device private memory
...page = pmd_page(orig_pmd);
>>>> + is_anon = PageAnon(page);
>>>> page_remove_rmap(page, true);
>>>> VM_BUG_ON_PAGE(page_mapcount(page) < 0, page);
>>>> VM_BUG_ON_PAGE(!PageHead(page), page);
>>>> } else if (thp_migration_supported()) {
>>>> swp_entry_t entry;
>>>>
>>>> - VM_BUG_ON(!is_pmd_migration_entry(orig_pmd));
>>>> entry = pmd_to_swp_entry(orig_pmd);
>>>> - page = pfn_to_page(swp_offset(entry));
>>>> + if (is_device_private_entr...
2020 Jun 22
0
[PATCH 13/16] mm: support THP migration to device private memory
...page_remove_rmap(page, true);
> >>>>> VM_BUG_ON_PAGE(page_mapcount(page) < 0, page);
> >>>>> VM_BUG_ON_PAGE(!PageHead(page), page);
> >>>>> } else if (thp_migration_supported()) {
> >>>>> swp_entry_t entry;
> >>>>>
> >>>>> - VM_BUG_ON(!is_pmd_migration_entry(orig_pmd));
> >>>>> entry = pmd_to_swp_entry(orig_pmd);
> >>>...
2020 Jun 22
2
[PATCH 13/16] mm: support THP migration to device private memory
...page_remove_rmap(page, true);
> > >>>>> VM_BUG_ON_PAGE(page_mapcount(page) < 0, page);
> > >>>>> VM_BUG_ON_PAGE(!PageHead(page), page);
> > >>>>> } else if (thp_migration_supported()) {
> > >>>>> swp_entry_t entry;
> > >>>>>
> > >>>>> - VM_BUG_ON(!is_pmd_migration_entry(orig_pmd));
> > >>>>> entry = pmd_to_swp_entry(orig_pmd...
2020 Nov 06
0
[PATCH v3 3/6] mm: support THP migration to device private memory
...e = NULL;
int flush_needed = 1;
+ bool is_anon = false;
if (pmd_present(orig_pmd)) {
page = pmd_page(orig_pmd);
+ is_anon = PageAnon(page);
page_remove_rmap(page, true);
VM_BUG_ON_PAGE(page_mapcount(page) < 0, page);
VM_BUG_ON_PAGE(!PageHead(page), page);
} else if (thp_migration_supported()) {
swp_entry_t entry;
- VM_BUG_ON(!is_pmd_migration_entry(orig_pmd));
entry = pmd_to_swp_entry(orig_pmd);
- page = pfn_to_page(swp_offset(entry));
+ if (is_device_private_entry(entry)) {
+ page = device_private_entry_to_page(entry);
+ is_anon = PageAnon(page);
+ page_re...
2019 Jul 26
0
[PATCH v2 6/7] mm/hmm: remove hugetlbfs check in hmm_vma_walk_pmd
...d58 100644
--- a/mm/hmm.c
+++ b/mm/hmm.c
@@ -630,9 +630,6 @@ static int hmm_vma_walk_pmd(pmd_t *pmdp,
if (pmd_none(pmd))
return hmm_vma_walk_hole(start, end, walk);
- if (pmd_huge(pmd) && (range->vma->vm_flags & VM_HUGETLB))
- return hmm_pfns_bad(start, end, walk);
-
if (thp_migration_supported() && is_pmd_migration_entry(pmd)) {
bool fault, write_fault;
unsigned long npages;
--
2.20.1
2020 Jun 19
0
[PATCH 13/16] mm: support THP migration to device private memory
...e = NULL;
int flush_needed = 1;
+ bool is_anon = false;
if (pmd_present(orig_pmd)) {
page = pmd_page(orig_pmd);
+ is_anon = PageAnon(page);
page_remove_rmap(page, true);
VM_BUG_ON_PAGE(page_mapcount(page) < 0, page);
VM_BUG_ON_PAGE(!PageHead(page), page);
} else if (thp_migration_supported()) {
swp_entry_t entry;
- VM_BUG_ON(!is_pmd_migration_entry(orig_pmd));
entry = pmd_to_swp_entry(orig_pmd);
- page = pfn_to_page(swp_offset(entry));
+ if (is_device_private_entry(entry)) {
+ page = device_private_entry_to_page(entry);
+ is_anon = PageAnon(page);
+ page_re...
2020 Nov 06
12
[PATCH v3 0/6] mm/hmm/nouveau: add THP migration to migrate_vma_*
This series adds support for transparent huge page migration to
migrate_vma_*() and adds nouveau SVM and HMM selftests as consumers.
Earlier versions were posted previously [1] and [2].
The patches apply cleanly to the linux-mm 5.10.0-rc2 tree. There are a
lot of other THP patches being posted. I don't think there are any
semantic conflicts but there may be some merge conflicts depending on
2020 Sep 02
10
[PATCH v2 0/7] mm/hmm/nouveau: add THP migration to migrate_vma_*
This series adds support for transparent huge page migration to
migrate_vma_*() and adds nouveau SVM and HMM selftests as consumers.
An earlier version was posted previously [1]. This version now
supports splitting a THP midway in the migration process which
led to a number of changes.
The patches apply cleanly to the current linux-mm tree. Since there
are a couple of patches in linux-mm from Dan
2020 Jun 19
22
[PATCH 00/16] mm/hmm/nouveau: THP mapping and migration
These patches apply to linux-5.8.0-rc1. Patches 1-3 should probably go
into 5.8, the others can be queued for 5.9. Patches 4-6 improve the HMM
self tests. Patch 7-8 prepare nouveau for the meat of this series which
adds support and testing for compound page mapping of system memory
(patches 9-11) and compound page migration to device private memory
(patches 12-16). Since these changes are split
2020 Apr 22
0
[PATCH hmm 5/5] mm/hmm: remove the customizable pfn format from hmm_range_fault
...&range->hmm_pfns[(start - range->start) >> PAGE_SHIFT];
unsigned long npages = (end - start) >> PAGE_SHIFT;
unsigned long addr = start;
pte_t *ptep;
@@ -333,16 +324,16 @@ static int hmm_vma_walk_pmd(pmd_t *pmdp,
return hmm_vma_walk_hole(start, end, -1, walk);
if (thp_migration_supported() && is_pmd_migration_entry(pmd)) {
- if (hmm_range_need_fault(hmm_vma_walk, pfns, npages, 0)) {
+ if (hmm_range_need_fault(hmm_vma_walk, hmm_pfns, npages, 0)) {
hmm_vma_walk->last = addr;
pmd_migration_entry_wait(walk->mm, pmdp);
return -EBUSY;
}
- return hmm_pfns...
2020 May 01
0
[PATCH hmm v2 5/5] mm/hmm: remove the customizable pfn format from hmm_range_fault
...&range->hmm_pfns[(start - range->start) >> PAGE_SHIFT];
unsigned long npages = (end - start) >> PAGE_SHIFT;
unsigned long addr = start;
pte_t *ptep;
@@ -333,16 +324,16 @@ static int hmm_vma_walk_pmd(pmd_t *pmdp,
return hmm_vma_walk_hole(start, end, -1, walk);
if (thp_migration_supported() && is_pmd_migration_entry(pmd)) {
- if (hmm_range_need_fault(hmm_vma_walk, pfns, npages, 0)) {
+ if (hmm_range_need_fault(hmm_vma_walk, hmm_pfns, npages, 0)) {
hmm_vma_walk->last = addr;
pmd_migration_entry_wait(walk->mm, pmdp);
return -EBUSY;
}
- return hmm_pfns...
2020 Apr 22
1
[PATCH hmm 5/5] mm/hmm: remove the customizable pfn format from hmm_range_fault
...ange->start) >> PAGE_SHIFT];
> unsigned long npages = (end - start) >> PAGE_SHIFT;
> unsigned long addr = start;
> pte_t *ptep;
> @@ -333,16 +324,16 @@ static int hmm_vma_walk_pmd(pmd_t *pmdp,
> return hmm_vma_walk_hole(start, end, -1, walk);
>
> if (thp_migration_supported() && is_pmd_migration_entry(pmd)) {
> - if (hmm_range_need_fault(hmm_vma_walk, pfns, npages, 0)) {
> + if (hmm_range_need_fault(hmm_vma_walk, hmm_pfns, npages, 0)) {
> hmm_vma_walk->last = addr;
> pmd_migration_entry_wait(walk->mm, pmdp);
> return -EBUSY...
2020 Apr 22
11
[PATCH hmm 0/5] Adjust hmm_range_fault() API
From: Jason Gunthorpe <jgg at mellanox.com>
The API is a bit complicated for the uses we actually have, and
disucssions for simplifying have come up a number of times.
This small series removes the customizable pfn format and simplifies the
return code of hmm_range_fault()
All the drivers are adjusted to process in the simplified format.
I would appreciated tested-by's for the two
2019 Jul 26
13
[PATCH v2 0/7] mm/hmm: more HMM clean up
Here are seven more patches for things I found to clean up.
This was based on top of Christoph's seven patches:
"hmm_range_fault related fixes and legacy API removal v3".
I assume this will go into Jason's tree since there will likely be
more HMM changes in this cycle.
Changes from v1 to v2:
Added AMD GPU to hmm_update removal.
Added 2 patches from Christoph.
Added 2 patches as
2020 May 01
13
[PATCH hmm v2 0/5] Adjust hmm_range_fault() API
From: Jason Gunthorpe <jgg at mellanox.com>
The API is a bit complicated for the uses we actually have, and
disucssions for simplifying have come up a number of times.
This small series removes the customizable pfn format and simplifies the
return code of hmm_range_fault()
All the drivers are adjusted to process in the simplified format.
I would appreciated tested-by's for the two