search for: dst_pfn

Displaying 14 results from an estimated 14 matches for "dst_pfn".

Did you mean: dst_pfns
2020 Jul 20
2
[PATCH v2 2/5] mm/migrate: add a direction parameter to migrate_vma
...m.c b/arch/powerpc/kvm/book3s_hv_uvmem.c > index 09d8119024db..acbf14cd2d72 100644 > +++ b/arch/powerpc/kvm/book3s_hv_uvmem.c > @@ -400,6 +400,7 @@ kvmppc_svm_page_in(struct vm_area_struct *vma, unsigned long start, > mig.end = end; > mig.src = &src_pfn; > mig.dst = &dst_pfn; > + mig.dir = MIGRATE_VMA_FROM_SYSTEM; > > /* > * We come here with mmap_lock write lock held just for > @@ -578,6 +579,7 @@ kvmppc_svm_page_out(struct vm_area_struct *vma, unsigned long start, > mig.src = &src_pfn; > mig.dst = &dst_pfn; > mig.src_owner...
2020 Jul 20
0
[PATCH v2 2/5] mm/migrate: add a direction parameter to migrate_vma
...3s_hv_uvmem.c >> index 09d8119024db..acbf14cd2d72 100644 >> +++ b/arch/powerpc/kvm/book3s_hv_uvmem.c >> @@ -400,6 +400,7 @@ kvmppc_svm_page_in(struct vm_area_struct *vma, unsigned long start, >> mig.end = end; >> mig.src = &src_pfn; >> mig.dst = &dst_pfn; >> + mig.dir = MIGRATE_VMA_FROM_SYSTEM; >> >> /* >> * We come here with mmap_lock write lock held just for >> @@ -578,6 +579,7 @@ kvmppc_svm_page_out(struct vm_area_struct *vma, unsigned long start, >> mig.src = &src_pfn; >> mig.dst = &...
2020 Mar 16
0
[PATCH 1/2] mm: handle multiple owners of device private pages in migrate_vma
...powerpc/kvm/book3s_hv_uvmem.c index 79b1202b1c62..29ed52892d31 100644 --- a/arch/powerpc/kvm/book3s_hv_uvmem.c +++ b/arch/powerpc/kvm/book3s_hv_uvmem.c @@ -386,6 +386,7 @@ kvmppc_svm_page_in(struct vm_area_struct *vma, unsigned long start, mig.end = end; mig.src = &src_pfn; mig.dst = &dst_pfn; + mig.dev_private_owner = &kvmppc_uvmem_pgmap; /* * We come here with mmap_sem write lock held just for @@ -563,6 +564,7 @@ kvmppc_svm_page_out(struct vm_area_struct *vma, unsigned long start, mig.end = end; mig.src = &src_pfn; mig.dst = &dst_pfn; + mig.dev_private_owner =...
2020 Jul 06
0
[PATCH 2/5] mm/migrate: add a direction parameter to migrate_vma
...powerpc/kvm/book3s_hv_uvmem.c index 09d8119024db..acbf14cd2d72 100644 --- a/arch/powerpc/kvm/book3s_hv_uvmem.c +++ b/arch/powerpc/kvm/book3s_hv_uvmem.c @@ -400,6 +400,7 @@ kvmppc_svm_page_in(struct vm_area_struct *vma, unsigned long start, mig.end = end; mig.src = &src_pfn; mig.dst = &dst_pfn; + mig.dir = MIGRATE_VMA_FROM_SYSTEM; /* * We come here with mmap_lock write lock held just for @@ -578,6 +579,7 @@ kvmppc_svm_page_out(struct vm_area_struct *vma, unsigned long start, mig.src = &src_pfn; mig.dst = &dst_pfn; mig.src_owner = &kvmppc_uvmem_pgmap; + mig.dir =...
2020 Jul 13
0
[PATCH v2 2/5] mm/migrate: add a direction parameter to migrate_vma
...powerpc/kvm/book3s_hv_uvmem.c index 09d8119024db..acbf14cd2d72 100644 --- a/arch/powerpc/kvm/book3s_hv_uvmem.c +++ b/arch/powerpc/kvm/book3s_hv_uvmem.c @@ -400,6 +400,7 @@ kvmppc_svm_page_in(struct vm_area_struct *vma, unsigned long start, mig.end = end; mig.src = &src_pfn; mig.dst = &dst_pfn; + mig.dir = MIGRATE_VMA_FROM_SYSTEM; /* * We come here with mmap_lock write lock held just for @@ -578,6 +579,7 @@ kvmppc_svm_page_out(struct vm_area_struct *vma, unsigned long start, mig.src = &src_pfn; mig.dst = &dst_pfn; mig.src_owner = &kvmppc_uvmem_pgmap; + mig.dir =...
2020 Jul 21
0
[PATCH v3 2/5] mm/migrate: add a flags parameter to migrate_vma
...powerpc/kvm/book3s_hv_uvmem.c index 09d8119024db..6850bd04bcb9 100644 --- a/arch/powerpc/kvm/book3s_hv_uvmem.c +++ b/arch/powerpc/kvm/book3s_hv_uvmem.c @@ -400,6 +400,7 @@ kvmppc_svm_page_in(struct vm_area_struct *vma, unsigned long start, mig.end = end; mig.src = &src_pfn; mig.dst = &dst_pfn; + mig.flags = MIGRATE_VMA_SELECT_SYSTEM; /* * We come here with mmap_lock write lock held just for @@ -577,7 +578,8 @@ kvmppc_svm_page_out(struct vm_area_struct *vma, unsigned long start, mig.end = end; mig.src = &src_pfn; mig.dst = &dst_pfn; - mig.src_owner = &kvmppc_uvme...
2020 Jul 23
0
[PATCH v4 2/6] mm/migrate: add a flags parameter to migrate_vma
...powerpc/kvm/book3s_hv_uvmem.c index 09d8119024db..6850bd04bcb9 100644 --- a/arch/powerpc/kvm/book3s_hv_uvmem.c +++ b/arch/powerpc/kvm/book3s_hv_uvmem.c @@ -400,6 +400,7 @@ kvmppc_svm_page_in(struct vm_area_struct *vma, unsigned long start, mig.end = end; mig.src = &src_pfn; mig.dst = &dst_pfn; + mig.flags = MIGRATE_VMA_SELECT_SYSTEM; /* * We come here with mmap_lock write lock held just for @@ -577,7 +578,8 @@ kvmppc_svm_page_out(struct vm_area_struct *vma, unsigned long start, mig.end = end; mig.src = &src_pfn; mig.dst = &dst_pfn; - mig.src_owner = &kvmppc_uvme...
2020 Jul 06
8
[PATCH 0/5] mm/migrate: avoid device private invalidations
The goal for this series is to avoid device private memory TLB invalidations when migrating a range of addresses from system memory to device private memory and some of those pages have already been migrated. The approach taken is to introduce a new mmu notifier invalidation event type and use that in the device driver to skip invalidation callbacks from migrate_vma_setup(). The device driver is
2020 Jul 21
6
[PATCH v3 0/5] mm/migrate: avoid device private invalidations
The goal for this series is to avoid device private memory TLB invalidations when migrating a range of addresses from system memory to device private memory and some of those pages have already been migrated. The approach taken is to introduce a new mmu notifier invalidation event type and use that in the device driver to skip invalidation callbacks from migrate_vma_setup(). The device driver is
2020 Jul 13
9
[PATCH v2 0/5] mm/migrate: avoid device private invalidations
The goal for this series is to avoid device private memory TLB invalidations when migrating a range of addresses from system memory to device private memory and some of those pages have already been migrated. The approach taken is to introduce a new mmu notifier invalidation event type and use that in the device driver to skip invalidation callbacks from migrate_vma_setup(). The device driver is
2020 Mar 16
0
[PATCH 2/4] mm: handle multiple owners of device private pages in migrate_vma
...owerpc/kvm/book3s_hv_uvmem.c index 67fefb03b9b7..f44f6b27950f 100644 --- a/arch/powerpc/kvm/book3s_hv_uvmem.c +++ b/arch/powerpc/kvm/book3s_hv_uvmem.c @@ -563,6 +563,7 @@ kvmppc_svm_page_out(struct vm_area_struct *vma, unsigned long start, mig.end = end; mig.src = &src_pfn; mig.dst = &dst_pfn; + mig.src_owner = &kvmppc_uvmem_pgmap; mutex_lock(&kvm->arch.uvmem_lock); /* The requested page is already paged-out, nothing to do */ diff --git a/drivers/gpu/drm/nouveau/nouveau_dmem.c b/drivers/gpu/drm/nouveau/nouveau_dmem.c index a4682272586e..0e36345d395c 100644 --- a/drivers...
2020 Mar 16
4
ensure device private pages have an owner
When acting on device private mappings a driver needs to know if the device (or other entity in case of kvmppc) actually owns this private mapping. This series adds an owner field and converts the migrate_vma code over to check it. I looked into doing the same for hmm_range_fault, but as far as I can tell that code has never been wired up to actually work for device private memory, so instead of
2020 Jul 23
9
[PATCH v4 0/6] mm/migrate: avoid device private invalidations
The goal for this series is to avoid device private memory TLB invalidations when migrating a range of addresses from system memory to device private memory and some of those pages have already been migrated. The approach taken is to introduce a new mmu notifier invalidation event type and use that in the device driver to skip invalidation callbacks from migrate_vma_setup(). The device driver is
2020 Mar 16
14
ensure device private pages have an owner v2
When acting on device private mappings a driver needs to know if the device (or other entity in case of kvmppc) actually owns this private mapping. This series adds an owner field and converts the migrate_vma code over to check it. I looked into doing the same for hmm_range_fault, but as far as I can tell that code has never been wired up to actually work for device private memory, so instead of