On Tue, Nov 11, 2014 at 11:31:27AM +0000, Hou Pengyang wrote:
> Hi Greg,
>
> These patches are backported to make LPAE more robust, most of which
> are important bugfixs. So I suggest merging them into 3.10.
>
> For ARM, when LPAE is triggered, 40-bit physical address is available,
> translation table becomes 3-level, and every table entry is 64 bit
> instead of 32. However, 3.10 does not well adapt to the change, So
> comes this series of patches.
>
> There are 12 patches, 9 of which can be cherry-picked cleanly, the
> rest needs to be adjusted. Patch information as follows:
>
> PART 1: patches that can be cleanly applied:
>
> dde1b65 ARM: mm: correct pte_same behaviour for LPAE.
> 926edcc ARM: LPAE: use signed arithmetic for mask definitions
> 20d6956 ARM: LPAE: use phys_addr_t in alloc_init_pud()
> 5b20c5b ARM: fix type of PHYS_PFN_OFFSET to unsigned long
> e38a517 ARM: lpae: fix definition of PTE_HWTABLE_PTRS
> 237f123 ARM: 7866/1: include: asm: use 'long long' instead of
> 'u64' within atomic.h
> 4dcc1cf ARM: 7867/1: include: asm: use 'int' instead of
> 'unsigned long' for 'oldval' in atomic_cmpxchg().
> efea340 ARM: 7931/1: Correct virt_addr_valid
> 6b07699 ARM: DMA: ensure that old section mappings are flushed
> from the TLB
>
> PART 2: patches that should be adjusted:
>
> b713aa0 ARM: fix asm/memory.h build error
> f295070 ARM: 8108/1: mm: Introduce {pte,pmd}_isset and
> {pte,pmd}_isclear
> ded9477 ARM: 8109/1: mm: Modify pte_write and pmd_write
> logic for LPAE
Some of these should also go to 3.14, can you provide a backport of them
as well?
thanks,
greg k-h
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