Displaying 10 results from an estimated 10 matches for "nvkm_vmm_pfn_w".
2020 Jul 06
0
[PATCH 1/5] nouveau: fix storing invalid ptes
...@@ -79,8 +79,12 @@ gp100_vmm_pgt_pfn(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
dma_addr_t addr;
nvkm_kmap(pt->memory);
- while (ptes--) {
+ for (; ptes; ptes--, map->pfn++) {
u64 data = 0;
+
+ if (!(*map->pfn & NVKM_VMM_PFN_V))
+ continue;
+
if (!(*map->pfn & NVKM_VMM_PFN_W))
data |= BIT_ULL(6); /* RO. */
@@ -100,7 +104,6 @@ gp100_vmm_pgt_pfn(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
}
VMM_WO064(pt, vmm, ptei++ * 8, data);
- map->pfn++;
}
nvkm_done(pt->memory);
}
@@ -310,9 +313,12 @@ gp100_vmm_pd0_pfn(struct nvkm_vmm *vmm, struct nvkm_mmu...
2020 Jul 13
0
[PATCH v2 1/5] nouveau: fix storing invalid ptes
...@@ -79,8 +79,12 @@ gp100_vmm_pgt_pfn(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
dma_addr_t addr;
nvkm_kmap(pt->memory);
- while (ptes--) {
+ for (; ptes; ptes--, map->pfn++) {
u64 data = 0;
+
+ if (!(*map->pfn & NVKM_VMM_PFN_V))
+ continue;
+
if (!(*map->pfn & NVKM_VMM_PFN_W))
data |= BIT_ULL(6); /* RO. */
@@ -100,7 +104,6 @@ gp100_vmm_pgt_pfn(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
}
VMM_WO064(pt, vmm, ptei++ * 8, data);
- map->pfn++;
}
nvkm_done(pt->memory);
}
@@ -310,9 +313,12 @@ gp100_vmm_pd0_pfn(struct nvkm_vmm *vmm, struct nvkm_mmu...
2020 Jul 23
0
[PATCH v4 1/6] nouveau: fix storing invalid ptes
...@@ -79,8 +79,12 @@ gp100_vmm_pgt_pfn(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
dma_addr_t addr;
nvkm_kmap(pt->memory);
- while (ptes--) {
+ for (; ptes; ptes--, map->pfn++) {
u64 data = 0;
+
+ if (!(*map->pfn & NVKM_VMM_PFN_V))
+ continue;
+
if (!(*map->pfn & NVKM_VMM_PFN_W))
data |= BIT_ULL(6); /* RO. */
@@ -100,7 +104,6 @@ gp100_vmm_pgt_pfn(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
}
VMM_WO064(pt, vmm, ptei++ * 8, data);
- map->pfn++;
}
nvkm_done(pt->memory);
}
@@ -310,9 +313,12 @@ gp100_vmm_pd0_pfn(struct nvkm_vmm *vmm, struct nvkm_mmu...
2020 Jul 01
0
[PATCH v3 3/5] nouveau: fix mapping 2MB sysmem pages
...oid
+gp100_vmm_pd0_pfn(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
+ u32 ptei, u32 ptes, struct nvkm_vmm_map *map)
+{
+ struct device *dev = vmm->mmu->subdev.device->dev;
+ dma_addr_t addr;
+
+ nvkm_kmap(pt->memory);
+ while (ptes--) {
+ u64 data = 0;
+
+ if (!(*map->pfn & NVKM_VMM_PFN_W))
+ data |= BIT_ULL(6); /* RO. */
+
+ if (!(*map->pfn & NVKM_VMM_PFN_VRAM)) {
+ addr = *map->pfn >> NVKM_VMM_PFN_ADDR_SHIFT;
+ addr = dma_map_page(dev, pfn_to_page(addr), 0,
+ 1UL << 21, DMA_BIDIRECTIONAL);
+ if (!WARN_ON(dma_mapping_error(dev, addr))) {
+...
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 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 Jul 01
8
[PATCH v3 0/5] mm/hmm/nouveau: add PMD system memory mapping
The goal for this series is to introduce the hmm_pfn_to_map_order()
function. This allows a device driver to know that a given 4K PFN is
actually mapped by the CPU using a larger sized CPU page table entry and
therefore the device driver can safely map system memory using larger
device MMU PTEs.
The series is based on 5.8.0-rc3 and is intended for Jason Gunthorpe's
hmm tree. These were
2020 Jun 30
6
[PATCH v2 0/5] mm/hmm/nouveau: add PMD system memory mapping
The goal for this series is to introduce the hmm_range_fault() output
array flags HMM_PFN_PMD and HMM_PFN_PUD. This allows a device driver to
know that a given 4K PFN is actually mapped by the CPU using either a
PMD sized or PUD sized CPU page table entry and therefore the device
driver can safely map system memory using larger device MMU PTEs.
The series is based on 5.8.0-rc3 and is intended for