Displaying 17 results from an estimated 17 matches for "config_device_public".
2019 Jun 26
0
[PATCH 04/25] mm: remove MEMORY_DEVICE_PUBLIC support
...8bb5 100644
--- a/include/linux/hmm.h
+++ b/include/linux/hmm.h
@@ -584,7 +584,7 @@ static inline void hmm_mm_destroy(struct mm_struct *mm) {}
static inline void hmm_mm_init(struct mm_struct *mm) {}
#endif /* IS_ENABLED(CONFIG_HMM_MIRROR) */
-#if IS_ENABLED(CONFIG_DEVICE_PRIVATE) || IS_ENABLED(CONFIG_DEVICE_PUBLIC)
+#if IS_ENABLED(CONFIG_DEVICE_PRIVATE)
struct hmm_devmem;
struct page *hmm_vma_alloc_locked_page(struct vm_area_struct *vma,
@@ -748,7 +748,7 @@ static inline unsigned long hmm_devmem_page_get_drvdata(const struct page *page)
{
return page->hmm_data;
}
-#endif /* CONFIG_DEVICE_PRIVATE |...
2019 Jun 14
3
[PATCH 18/22] mm: mark DEVICE_PUBLIC as broken
...t;
> Indeed you are correct, never mind
>
> Hum, so the only thing this config does is short circuit here:
>
> static inline bool is_device_public_page(const struct page *page)
> {
> return IS_ENABLED(CONFIG_DEV_PAGEMAP_OPS) &&
> IS_ENABLED(CONFIG_DEVICE_PUBLIC) &&
> is_zone_device_page(page) &&
> page->pgmap->type == MEMORY_DEVICE_PUBLIC;
> }
>
> Which is called all over the place..
<sigh> yes but the earlier patch:
[PATCH 03/22] mm: remove hmm_devmem_add_resource
Removes th...
2019 Jun 13
0
[PATCH 02/22] mm: remove the struct hmm_device infrastructure
...single fake device can use hmm_device to do so. This is purely a helper and
- * it is not strictly needed, in order to make use of any HMM functionality.
- */
-struct hmm_device *hmm_device_new(void *drvdata);
-void hmm_device_put(struct hmm_device *hmm_device);
#endif /* CONFIG_DEVICE_PRIVATE || CONFIG_DEVICE_PUBLIC */
#else /* IS_ENABLED(CONFIG_HMM) */
static inline void hmm_mm_destroy(struct mm_struct *mm) {}
diff --git a/mm/hmm.c b/mm/hmm.c
index 886b18695b97..ff2598eb7377 100644
--- a/mm/hmm.c
+++ b/mm/hmm.c
@@ -1499,84 +1499,4 @@ struct hmm_devmem *hmm_devmem_add_resource(const struct hmm_devmem_ops *op...
2019 Jun 13
0
[PATCH 17/22] mm: remove hmm_devmem_add
...x/hmm.h b/include/linux/hmm.h
index 0e61d830b0a9..13152ab504ec 100644
--- a/include/linux/hmm.h
+++ b/include/linux/hmm.h
@@ -551,135 +551,6 @@ static inline void hmm_mm_init(struct mm_struct *mm) {}
#endif /* IS_ENABLED(CONFIG_HMM_MIRROR) */
#if IS_ENABLED(CONFIG_DEVICE_PRIVATE) || IS_ENABLED(CONFIG_DEVICE_PUBLIC)
-struct hmm_devmem;
-
-/*
- * struct hmm_devmem_ops - callback for ZONE_DEVICE memory events
- *
- * @free: call when refcount on page reach 1 and thus is no longer use
- * @fault: call when there is a page fault to unaddressable memory
- *
- * Both callback happens from page_free() and page_fault...
2019 Jun 19
3
[PATCH 18/22] mm: mark DEVICE_PUBLIC as broken
...; >> Hum, so the only thing this config does is short circuit here:
> >>
> >> static inline bool is_device_public_page(const struct page *page)
> >> {
> >> return IS_ENABLED(CONFIG_DEV_PAGEMAP_OPS) &&
> >> IS_ENABLED(CONFIG_DEVICE_PUBLIC) &&
> >> is_zone_device_page(page) &&
> >> page->pgmap->type == MEMORY_DEVICE_PUBLIC;
> >> }
> >>
> >> Which is called all over the place..
> >
> > <sigh> yes but the earlier patc...
2019 Jun 17
34
dev_pagemap related cleanups v2
Hi Dan, Jérôme and Jason,
below is a series that cleans up the dev_pagemap interface so that
it is more easily usable, which removes the need to wrap it in hmm
and thus allowing to kill a lot of code
Note: this series is on top of the rdma/hmm branch + the dev_pagemap
releas fix series from Dan that went into 5.2-rc5.
Git tree:
git://git.infradead.org/users/hch/misc.git
2019 Jun 13
0
[PATCH 03/22] mm: remove hmm_devmem_add_resource
...vmem->pagemap.data = devmem;
- devmem->pagemap.kill = hmm_devmem_ref_kill;
-
- result = devm_memremap_pages(devmem->device, &devmem->pagemap);
- if (IS_ERR(result))
- return result;
- return devmem;
-}
-EXPORT_SYMBOL_GPL(hmm_devmem_add_resource);
#endif /* CONFIG_DEVICE_PRIVATE || CONFIG_DEVICE_PUBLIC */
--
2.20.1
2019 Jun 13
0
[PATCH 18/22] mm: mark DEVICE_PUBLIC as broken
...use DEVICE_PRIVATE but not DEVICE_PUBLIC.
Indeed you are correct, never mind
Hum, so the only thing this config does is short circuit here:
static inline bool is_device_public_page(const struct page *page)
{
return IS_ENABLED(CONFIG_DEV_PAGEMAP_OPS) &&
IS_ENABLED(CONFIG_DEVICE_PUBLIC) &&
is_zone_device_page(page) &&
page->pgmap->type == MEMORY_DEVICE_PUBLIC;
}
Which is called all over the place..
So, yes, we really don't want any distro or something to turn this on
until it has a use.
Reviewed-by: Jason Gunthorpe <...
2019 Jun 14
0
[PATCH 18/22] mm: mark DEVICE_PUBLIC as broken
...ll wrote:
>>>
...
>> Hum, so the only thing this config does is short circuit here:
>>
>> static inline bool is_device_public_page(const struct page *page)
>> {
>> return IS_ENABLED(CONFIG_DEV_PAGEMAP_OPS) &&
>> IS_ENABLED(CONFIG_DEVICE_PUBLIC) &&
>> is_zone_device_page(page) &&
>> page->pgmap->type == MEMORY_DEVICE_PUBLIC;
>> }
>>
>> Which is called all over the place..
>
> <sigh> yes but the earlier patch:
>
> [PATCH 03/22] mm: rem...
2019 Jun 17
0
[PATCH 07/25] memremap: validate the pagemap type passed to devm_memremap_pages
...PAGE_KERNEL;
int error, nid, is_ram;
+ switch (pgmap->type) {
+ case MEMORY_DEVICE_PRIVATE:
+ if (!IS_ENABLED(CONFIG_DEVICE_PRIVATE)) {
+ WARN(1, "Device private memory not supported\n");
+ return ERR_PTR(-EINVAL);
+ }
+ break;
+ case MEMORY_DEVICE_PUBLIC:
+ if (!IS_ENABLED(CONFIG_DEVICE_PUBLIC)) {
+ WARN(1, "Device public memory not supported\n");
+ return ERR_PTR(-EINVAL);
+ }
+ break;
+ case MEMORY_DEVICE_FS_DAX:
+ if (!IS_ENABLED(CONFIG_ZONE_DEVICE) ||
+ IS_ENABLED(CONFIG_FS_DAX_LIMITED)) {
+ WARN(1, "File system DAX not supported\n");
+ return ERR_...
2019 Jun 17
2
[PATCH 07/25] memremap: validate the pagemap type passed to devm_memremap_pages
...ED(CONFIG_DEVICE_PRIVATE)) {
> + WARN(1, "Device private memory not supported\n");
> + return ERR_PTR(-EINVAL);
> + }
> + break;
> + case MEMORY_DEVICE_PUBLIC:
> + if (!IS_ENABLED(CONFIG_DEVICE_PUBLIC)) {
> + WARN(1, "Device public memory not supported\n");
> + return ERR_PTR(-EINVAL);
> + }
> + break;
> + case MEMORY_DEVICE_FS_DAX:
> + if (!IS_ENABLED(CONFIG_ZONE_DEVICE) ||
&g...
2019 Jun 26
0
[PATCH 03/25] mm: remove hmm_devmem_add_resource
....kill = hmm_devmem_ref_kill;
- devmem->pagemap.cleanup = hmm_devmem_ref_exit;
-
- result = devm_memremap_pages(devmem->device, &devmem->pagemap);
- if (IS_ERR(result))
- return result;
- return devmem;
-}
-EXPORT_SYMBOL_GPL(hmm_devmem_add_resource);
#endif /* CONFIG_DEVICE_PRIVATE || CONFIG_DEVICE_PUBLIC */
--
2.20.1
2019 Jun 13
57
dev_pagemap related cleanups
Hi Dan, Jérôme and Jason,
below is a series that cleans up the dev_pagemap interface so that
it is more easily usable, which removes the need to wrap it in hmm
and thus allowing to kill a lot of code
Diffstat:
22 files changed, 245 insertions(+), 802 deletions(-)
Git tree:
git://git.infradead.org/users/hch/misc.git hmm-devmem-cleanup
Gitweb:
2019 Jun 17
2
[PATCH 06/25] mm: factor out a devm_request_free_mem_region helper
On Mon, Jun 17, 2019 at 5:27 AM Christoph Hellwig <hch at lst.de> wrote:
>
> Keep the physical address allocation that hmm_add_device does with the
> rest of the resource code, and allow future reuse of it without the hmm
> wrapper.
>
> Signed-off-by: Christoph Hellwig <hch at lst.de>
> Reviewed-by: Jason Gunthorpe <jgg at mellanox.com>
> Reviewed-by: John
2019 Jun 13
1
[PATCH 18/22] mm: mark DEVICE_PUBLIC as broken
On 6/13/19 12:44 PM, Jason Gunthorpe wrote:
> On Thu, Jun 13, 2019 at 11:43:21AM +0200, Christoph Hellwig wrote:
>> The code hasn't been used since it was added to the tree, and doesn't
>> appear to actually be usable. Mark it as BROKEN until either a user
>> comes along or we finally give up on it.
>>
>> Signed-off-by: Christoph Hellwig <hch at
2019 Jun 13
2
[PATCH 18/22] mm: mark DEVICE_PUBLIC as broken
On Thu, Jun 13, 2019 at 11:43:21AM +0200, Christoph Hellwig wrote:
> The code hasn't been used since it was added to the tree, and doesn't
> appear to actually be usable. Mark it as BROKEN until either a user
> comes along or we finally give up on it.
>
> Signed-off-by: Christoph Hellwig <hch at lst.de>
> mm/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
2019 Jun 26
41
dev_pagemap related cleanups v3
Hi Dan, Jérôme and Jason,
below is a series that cleans up the dev_pagemap interface so that
it is more easily usable, which removes the need to wrap it in hmm
and thus allowing to kill a lot of code
Note: this series is on top of Linux 5.2-rc5 and has some minor
conflicts with the hmm tree that are easy to resolve.
Diffstat summary:
32 files changed, 361 insertions(+), 1012 deletions(-)
Git