Displaying 2 results from an estimated 2 matches for "a9dd06e190a1".
2020 May 08
0
[PATCH 4/6] mm/hmm: add output flag for compound page mapping
...lags */
HMM_PFN_REQ_FAULT = HMM_PFN_VALID,
HMM_PFN_REQ_WRITE = HMM_PFN_WRITE,
- HMM_PFN_FLAGS = HMM_PFN_VALID | HMM_PFN_WRITE | HMM_PFN_ERROR,
+ HMM_PFN_FLAGS = HMM_PFN_VALID | HMM_PFN_WRITE | HMM_PFN_ERROR |
+ HMM_PFN_COMPOUND,
};
/*
diff --git a/mm/hmm.c b/mm/hmm.c
index 41673a6d8d46..a9dd06e190a1 100644
--- a/mm/hmm.c
+++ b/mm/hmm.c
@@ -170,7 +170,9 @@ static inline unsigned long pmd_to_hmm_pfn_flags(struct hmm_range *range,
{
if (pmd_protnone(pmd))
return 0;
- return pmd_write(pmd) ? (HMM_PFN_VALID | HMM_PFN_WRITE) : HMM_PFN_VALID;
+ return pmd_write(pmd) ?
+ (HMM_PFN_VALID | HMM_P...
2020 May 08
11
[PATCH 0/6] nouveau/hmm: add support for mapping large pages
hmm_range_fault() returns an array of page frame numbers and flags for
how the pages are mapped in the requested process' page tables. The PFN
can be used to get the struct page with hmm_pfn_to_page() and the page size
order can be determined with compound_order(page) but if the page is larger
than order 0 (PAGE_SIZE), there is no indication that the page is mapped
using a larger page size. To