Displaying 9 results from an estimated 9 matches for "reprensetation".
2020 May 02
1
[PATCH hmm v2 5/5] mm/hmm: remove the customizable pfn format from hmm_range_fault
..._range *range, u64 *ioctl_addr)
> +{
> + unsigned long i, npages;
> +
> + /*
> + * The ioctl_addr prepared here is passed through nvif_object_ioctl()
> + * to an eventual DMA map in something like gp100_vmm_pgt_pfn()
> + *
> + * This is all just encoding the internal hmm reprensetation into a
s/reprensetation/representation/
Looks good and still tests OK with nouveau.
2020 Apr 22
2
[PATCH hmm 5/5] mm/hmm: remove the customizable pfn format from hmm_range_fault
...0_vmm_desc_spt:
> + * .pfn = gp100_vmm_pgt_pfn
> + * nvkm_vmm_iter()
> + * REF_PTES == func == gp100_vmm_pgt_pfn()
> + * dma_map_page()
> + *
> + * This is all just encoding the internal hmm reprensetation into a
> + * different nouveau internal representation.
> + */
Nice callchain from hell.. Unfortunately such "code listings" tend to
get out of date very quickly, so I'm not sure it is worth keeping in
the code. What would be really worthile is consolidating the two
differe...
2020 Apr 22
0
[PATCH hmm 5/5] mm/hmm: remove the customizable pfn format from hmm_range_fault
....pfn = gp100_vmm_pgt_pfn
> > + * nvkm_vmm_iter()
> > + * REF_PTES == func == gp100_vmm_pgt_pfn()
> > + * dma_map_page()
> > + *
> > + * This is all just encoding the internal hmm reprensetation into a
> > + * different nouveau internal representation.
> > + */
>
> Nice callchain from hell.. Unfortunately such "code listings" tend to
> get out of date very quickly, so I'm not sure it is worth keeping in
> the code. What would be really worthile is...
2020 May 01
13
[PATCH hmm v2 0/5] Adjust hmm_range_fault() API
From: Jason Gunthorpe <jgg at mellanox.com>
The API is a bit complicated for the uses we actually have, and
disucssions for simplifying have come up a number of times.
This small series removes the customizable pfn format and simplifies the
return code of hmm_range_fault()
All the drivers are adjusted to process in the simplified format.
I would appreciated tested-by's for the two
2020 May 05
1
[PATCH hmm v2 5/5] mm/hmm: remove the customizable pfn format from hmm_range_fault
..._range *range, u64 *ioctl_addr)
> +{
> + unsigned long i, npages;
> +
> + /*
> + * The ioctl_addr prepared here is passed through nvif_object_ioctl()
> + * to an eventual DMA map in something like gp100_vmm_pgt_pfn()
> + *
> + * This is all just encoding the internal hmm reprensetation into a
"representation"
...
> @@ -542,12 +564,15 @@ static int nouveau_range_fault(struct nouveau_svmm *svmm,
> return -EBUSY;
>
> range.notifier_seq = mmu_interval_read_begin(range.notifier);
> - range.default_flags = 0;
> - range.pfn_flags_mask = -1UL;...
2020 Apr 22
11
[PATCH hmm 0/5] Adjust hmm_range_fault() API
From: Jason Gunthorpe <jgg at mellanox.com>
The API is a bit complicated for the uses we actually have, and
disucssions for simplifying have come up a number of times.
This small series removes the customizable pfn format and simplifies the
return code of hmm_range_fault()
All the drivers are adjusted to process in the simplified format.
I would appreciated tested-by's for the two
2020 Apr 22
0
[PATCH hmm 5/5] mm/hmm: remove the customizable pfn format from hmm_range_fault
...struct nvkm_vmm_desc_func gp100_vmm_desc_spt:
+ * .pfn = gp100_vmm_pgt_pfn
+ * nvkm_vmm_iter()
+ * REF_PTES == func == gp100_vmm_pgt_pfn()
+ * dma_map_page()
+ *
+ * This is all just encoding the internal hmm reprensetation into a
+ * different nouveau internal representation.
+ */
npages = (range->end - range->start) >> PAGE_SHIFT;
for (i = 0; i < npages; ++i) {
struct page *page;
- uint64_t addr;
- page = hmm_device_entry_to_page(range, range->pfns[i]);
- if (page == NULL)
- continu...
2020 May 01
0
[PATCH hmm v2 5/5] mm/hmm: remove the customizable pfn format from hmm_range_fault
...ct nouveau_drm *drm,
+ struct hmm_range *range, u64 *ioctl_addr)
+{
+ unsigned long i, npages;
+
+ /*
+ * The ioctl_addr prepared here is passed through nvif_object_ioctl()
+ * to an eventual DMA map in something like gp100_vmm_pgt_pfn()
+ *
+ * This is all just encoding the internal hmm reprensetation into a
+ * different nouveau internal representation.
+ */
+ npages = (range->end - range->start) >> PAGE_SHIFT;
+ for (i = 0; i < npages; ++i) {
+ struct page *page;
+
+ if (!(range->hmm_pfns[i] & HMM_PFN_VALID)) {
+ ioctl_addr[i] = 0;
+ continue;
+ }
+
+ page = hmm...
2020 Apr 22
1
[PATCH hmm 5/5] mm/hmm: remove the customizable pfn format from hmm_range_fault
...0_vmm_desc_spt:
> + * .pfn = gp100_vmm_pgt_pfn
> + * nvkm_vmm_iter()
> + * REF_PTES == func == gp100_vmm_pgt_pfn()
> + * dma_map_page()
> + *
> + * This is all just encoding the internal hmm reprensetation into a
> + * different nouveau internal representation.
> + */
> npages = (range->end - range->start) >> PAGE_SHIFT;
> for (i = 0; i < npages; ++i) {
> struct page *page;
> - uint64_t addr;
>
> - page = hmm_device_entry_to_page(range, range->pf...