Displaying 3 results from an estimated 3 matches for "a4682272586".
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a4682272586e
2020 Mar 16
0
[PATCH 1/4] memremap: add an owner field to struct dev_pagemap
...ne global instance: */
+ kvmppc_uvmem_pgmap.owner = &kvmppc_uvmem_pgmap;
addr = memremap_pages(&kvmppc_uvmem_pgmap, NUMA_NO_NODE);
if (IS_ERR(addr)) {
ret = PTR_ERR(addr);
diff --git a/drivers/gpu/drm/nouveau/nouveau_dmem.c b/drivers/gpu/drm/nouveau/nouveau_dmem.c
index 0ad5d87b5a8e..a4682272586e 100644
--- a/drivers/gpu/drm/nouveau/nouveau_dmem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_dmem.c
@@ -526,6 +526,7 @@ nouveau_dmem_init(struct nouveau_drm *drm)
drm->dmem->pagemap.type = MEMORY_DEVICE_PRIVATE;
drm->dmem->pagemap.res = *res;
drm->dmem->pagemap.ops = &nouv...
2020 Mar 16
0
[PATCH 2/4] mm: handle multiple owners of device private pages in migrate_vma
...ig.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/gpu/drm/nouveau/nouveau_dmem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_dmem.c
@@ -176,6 +176,7 @@ static vm_fault_t nouveau_dmem_migrate_to_ram(struct vm_fault *vmf)
.end = vmf->address + PAGE_SIZE,
.src = &src,
.dst = &dst,
+ .src_owner = d...
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