Re: [PATCH 00/31] powerpc/mm: Update page table format for book3s 64

2015-09-29 Thread Michael Ellerman
On Mon, 2015-09-28 at 11:41 -0500, Scott Wood wrote: > On Mon, 2015-09-28 at 10:26 +0530, Aneesh Kumar K.V wrote: > > Scott Wood writes: > > > > > > In any case, "nohash" is the term used elsewhere. > > > > How about using swtlb ? (nohash always confused me, It would be nice to > > be explict an

Re: [PATCH 00/31] powerpc/mm: Update page table format for book3s 64

2015-09-28 Thread Benjamin Herrenschmidt
On Mon, 2015-09-28 at 10:26 +0530, Aneesh Kumar K.V wrote: > > In any case, "nohash" is the term used elsewhere. > > How about using swtlb ? (nohash always confused me, It would be nice > to be explict and us software tlb ?) Stick to nohash, that's been our convention so far, I don't see the poi

Re: [PATCH 00/31] powerpc/mm: Update page table format for book3s 64

2015-09-28 Thread Scott Wood
On Mon, 2015-09-28 at 10:26 +0530, Aneesh Kumar K.V wrote: > Scott Wood writes: > > > On Tue, 2015-09-22 at 12:18 +0530, Aneesh Kumar K.V wrote: > > > Scott Wood writes: > > > > > > > On Mon, 2015-09-21 at 12:10 +0530, Aneesh Kumar K.V wrote: > > > > > Hi All, > > > > > > > > > > This patch se

Re: [PATCH 00/31] powerpc/mm: Update page table format for book3s 64

2015-09-27 Thread Aneesh Kumar K.V
Scott Wood writes: > On Tue, 2015-09-22 at 12:18 +0530, Aneesh Kumar K.V wrote: >> Scott Wood writes: >> >> > On Mon, 2015-09-21 at 12:10 +0530, Aneesh Kumar K.V wrote: >> > > Hi All, >> > > >> > > This patch series attempt to update book3s 64 linux page table format to >> > > make it more fle

Re: [PATCH 00/31] powerpc/mm: Update page table format for book3s 64

2015-09-21 Thread Scott Wood
On Tue, 2015-09-22 at 12:18 +0530, Aneesh Kumar K.V wrote: > Scott Wood writes: > > > On Mon, 2015-09-21 at 12:10 +0530, Aneesh Kumar K.V wrote: > > > Hi All, > > > > > > This patch series attempt to update book3s 64 linux page table format to > > > make it more flexible. Our current pte format

Re: [PATCH 00/31] powerpc/mm: Update page table format for book3s 64

2015-09-21 Thread Aneesh Kumar K.V
Scott Wood writes: > On Mon, 2015-09-21 at 12:10 +0530, Aneesh Kumar K.V wrote: >> Hi All, >> >> This patch series attempt to update book3s 64 linux page table format to >> make it more flexible. Our current pte format is very restrictive and we >> overload multiple pte bits. This is due to the

Re: [PATCH 00/31] powerpc/mm: Update page table format for book3s 64

2015-09-21 Thread Scott Wood
On Mon, 2015-09-21 at 12:10 +0530, Aneesh Kumar K.V wrote: > Hi All, > > This patch series attempt to update book3s 64 linux page table format to > make it more flexible. Our current pte format is very restrictive and we > overload multiple pte bits. This is due to the non-availability of free bit

[PATCH 00/31] powerpc/mm: Update page table format for book3s 64

2015-09-20 Thread Aneesh Kumar K.V
Hi All, This patch series attempt to update book3s 64 linux page table format to make it more flexible. Our current pte format is very restrictive and we overload multiple pte bits. This is due to the non-availability of free bits in pte_t. We use pte_t to track the validity of 4K subpages. This p