Displaying 6 results from an estimated 6 matches for "mmu_interval_notifier_update".
2020 Jan 13
0
[PATCH v6 3/6] mm/notifier: add mmu_interval_notifier_update()
...updated_last;
};
#ifdef CONFIG_MMU_NOTIFIER
@@ -310,6 +312,8 @@ int mmu_interval_notifier_insert_safe(
const struct mmu_interval_notifier_ops *ops);
void mmu_interval_notifier_remove(struct mmu_interval_notifier *mni);
void mmu_interval_notifier_put(struct mmu_interval_notifier *mni);
+void mmu_interval_notifier_update(struct mmu_interval_notifier *mni,
+ unsigned long start, unsigned long last);
/**
* mmu_interval_set_seq - Save the invalidation sequence
diff --git a/mm/mmu_notifier.c b/mm/mmu_notifier.c
index 40c837ae8d90..47ad9cc89aab 100644
--- a/mm/mmu_notifier.c
+++ b/mm/mmu_notifier.c
@@ -157,7 +...
2020 Jan 14
2
[PATCH v6 4/6] mm/mmu_notifier: add mmu_interval_notifier_find()
On Mon, Jan 13, 2020 at 02:47:01PM -0800, Ralph Campbell wrote:
> diff --git a/mm/mmu_notifier.c b/mm/mmu_notifier.c
> index 47ad9cc89aab..4efecc0f13cb 100644
> +++ b/mm/mmu_notifier.c
> @@ -1171,6 +1171,39 @@ void mmu_interval_notifier_update(struct mmu_interval_notifier *mni,
> }
> EXPORT_SYMBOL_GPL(mmu_interval_notifier_update);
>
> +struct mmu_interval_notifier *mmu_interval_notifier_find(struct mm_struct *mm,
> + const struct mmu_interval_notifier_ops *ops,
> + unsigned long start, unsigned long last)
>...
2020 Jan 13
0
[PATCH v6 4/6] mm/mmu_notifier: add mmu_interval_notifier_find()
...ude/linux/mmu_notifier.h
index 0ce59b4f22c2..cdbbad13b278 100644
--- a/include/linux/mmu_notifier.h
+++ b/include/linux/mmu_notifier.h
@@ -314,6 +314,21 @@ void mmu_interval_notifier_remove(struct mmu_interval_notifier *mni);
void mmu_interval_notifier_put(struct mmu_interval_notifier *mni);
void mmu_interval_notifier_update(struct mmu_interval_notifier *mni,
unsigned long start, unsigned long last);
+struct mmu_interval_notifier *mmu_interval_notifier_find(struct mm_struct *mm,
+ const struct mmu_interval_notifier_ops *ops,
+ unsigned long start, unsigned long last);
+
+static inline unsigned long mmu_int...
2020 Jan 15
0
[PATCH v6 4/6] mm/mmu_notifier: add mmu_interval_notifier_find()
On 1/14/20 4:49 AM, Jason Gunthorpe wrote:
> On Mon, Jan 13, 2020 at 02:47:01PM -0800, Ralph Campbell wrote:
>> diff --git a/mm/mmu_notifier.c b/mm/mmu_notifier.c
>> index 47ad9cc89aab..4efecc0f13cb 100644
>> +++ b/mm/mmu_notifier.c
>> @@ -1171,6 +1171,39 @@ void mmu_interval_notifier_update(struct mmu_interval_notifier *mni,
>> }
>> EXPORT_SYMBOL_GPL(mmu_interval_notifier_update);
>>
>> +struct mmu_interval_notifier *mmu_interval_notifier_find(struct mm_struct *mm,
>> + const struct mmu_interval_notifier_ops *ops,
>> + unsigned long sta...
2020 Jan 13
9
[PATCH v6 0/6] mm/hmm/test: add self tests for HMM
...tests to use the new core interval notifier API
Changes v1 -> v4:
https://lore.kernel.org/linux-mm/20191104222141.5173-1-rcampbell at nvidia.com
Ralph Campbell (6):
mm/mmu_notifier: add mmu_interval_notifier_insert_safe()
mm/mmu_notifier: add mmu_interval_notifier_put()
mm/notifier: add mmu_interval_notifier_update()
mm/mmu_notifier: add mmu_interval_notifier_find()
nouveau: use new mmu interval notifiers
mm/hmm/test: add self tests for HMM
MAINTAINERS | 3 +
drivers/gpu/drm/nouveau/nouveau_svm.c | 313 ++++--
include/linux/mmu_notifier.h | 29 +
lib/Kconfig...
2020 Jan 13
0
[PATCH v6 5/6] nouveau: use new mmu interval notifiers
...;
+ unsigned long start = mmu_interval_notifier_start(mni);
+ unsigned long last = mmu_interval_notifier_last(mni);
+
+ if (start >= range->start) {
+ /* Remove the whole interval or keep the right-hand part. */
+ if (last <= range->end)
+ mmu_interval_notifier_put(mni);
+ else
+ mmu_interval_notifier_update(mni, range->end, last);
+ return;
+ }
+
+ /* Keep the left-hand part of the interval. */
+ mmu_interval_notifier_update(mni, start, range->start - 1);
+
+ /* If a hole is created, create an interval for the right-hand part. */
+ if (last >= range->end) {
+ smi = nouveau_svmm_new_inter...