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| author | Guo Ren <ren_guo@c-sky.com> | 2018-11-20 16:06:57 +0800 |
|---|---|---|
| committer | Guo Ren <ren_guo@c-sky.com> | 2018-12-03 10:49:11 +0800 |
| commit | 63e19c8216bb03a1b4d10f6637d1324ae7a2b612 (patch) | |
| tree | e262771a315b279237acea490c54e110d198af1c /lib/fdt_wip.c | |
| parent | b4b84da36403bf1142d17fe7b06c2d639c9c9b8b (diff) | |
csky: bugfix tlb_get_pgd error.
It's wrong to mask/unmask highest bit in addr to translate the vaddr
to paddr. We should use PAGE_OFFSET and PHYS_OFFSET.
Wrong implement:
return ((get_pgd()|(1<<31)) - PHYS_OFFSET) & ~1;
When PHYS_OFFSET=0xc0000000 and get_pgd() return 0xe0000000, it'll
return 0x60000000. It's wrong and should be 0xa0000000.
Now correct it to:
return ((get_pgd() - PHYS_OFFSET) & ~1) + PAGE_OFFSET;
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Diffstat (limited to 'lib/fdt_wip.c')
0 files changed, 0 insertions, 0 deletions