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| author |   Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2016-12-14 10:07:53 +0530 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2017-01-18 11:58:50 +1100 |
| commit | 20717e1ff52672e31f9399c45d88936bbbc7e175 (patch) | |
| tree | 78f4f680a68ddddc4f99140d8c09b1a7b17a474d /arch/powerpc/include/asm/page.h | |
| parent | powerpc/mm/hugetlb: Don't panic when we don't find the default huge page size (diff) | |
| download | linux-dev-20717e1ff52672e31f9399c45d88936bbbc7e175.tar.xz linux-dev-20717e1ff52672e31f9399c45d88936bbbc7e175.zip | |
powerpc/mm: Fix little-endian 4K hugetlb
When we switched to big endian page table, we never updated the hugepd
format such that it can work for both big endian and little endian
config. This patch series update hugepd format such that it is looked at
as __be64 value in big endian page table config.
This patch also switch hugepd_t.pd from signed long to unsigned long.
I did update the FSL hugepd_ok check to check for the top bit instead
of checking > 0.
Fixes: 5dc1ef858c12 ("powerpc/mm: Use big endian Linux page tables for book3s 64")
Cc: stable@vger.kernel.org # v4.7+
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/page.h')
| -rw-r--r-- | arch/powerpc/include/asm/page.h | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h index 56398e7e6100..47120bf2670c 100644 --- a/arch/powerpc/include/asm/page.h +++ b/arch/powerpc/include/asm/page.h @@ -294,15 +294,12 @@ extern long long virt_phys_offset; #include <asm/pgtable-types.h> #endif -typedef struct { signed long pd; } hugepd_t; #ifndef CONFIG_HUGETLB_PAGE #define is_hugepd(pdep) (0) #define pgd_huge(pgd) (0) #endif /* CONFIG_HUGETLB_PAGE */ -#define __hugepd(x) ((hugepd_t) { (x) }) - struct page; extern void clear_user_page(void *page, unsigned long vaddr, struct page *pg); extern void copy_user_page(void *to, void *from, unsigned long vaddr, |