Re: [RFC PATCH 0/8] Reimplement huge pages without hugepd on powerpc 8xx

2024-05-22 Thread Christophe Leroy
Le 17/05/2024 à 16:27, Oscar Salvador a écrit : > On Mon, Mar 25, 2024 at 03:55:53PM +0100, Christophe Leroy wrote: >> This series reimplements hugepages with hugepd on powerpc 8xx. >> >> Unlike most architectures, powerpc 8xx HW requires a two-level >> pagetable topology for all page sizes. So

Re: [RFC PATCH 0/8] Reimplement huge pages without hugepd on powerpc 8xx

2024-05-17 Thread Oscar Salvador
On Mon, Mar 25, 2024 at 03:55:53PM +0100, Christophe Leroy wrote: > This series reimplements hugepages with hugepd on powerpc 8xx. > > Unlike most architectures, powerpc 8xx HW requires a two-level > pagetable topology for all page sizes. So a leaf PMD-contig approach > is not feasible as such. >

Re: [RFC PATCH 0/8] Reimplement huge pages without hugepd on powerpc 8xx

2024-04-16 Thread Peter Xu
On Tue, Apr 16, 2024 at 10:58:33AM +, Christophe Leroy wrote: > > > Le 15/04/2024 à 21:12, Christophe Leroy a écrit : > > > > > > Le 12/04/2024 à 16:30, Peter Xu a écrit : > >> On Fri, Apr 12, 2024 at 02:08:03PM +, Christophe Leroy wrote: > >>> > >>> > >>> Le 11/04/2024 à 18:15, Peter

Re: [RFC PATCH 0/8] Reimplement huge pages without hugepd on powerpc 8xx

2024-04-16 Thread Christophe Leroy
Le 15/04/2024 à 21:12, Christophe Leroy a écrit : > > > Le 12/04/2024 à 16:30, Peter Xu a écrit : >> On Fri, Apr 12, 2024 at 02:08:03PM +, Christophe Leroy wrote: >>> >>> >>> Le 11/04/2024 à 18:15, Peter Xu a écrit : On Mon, Mar 25, 2024 at 01:38:40PM -0300, Jason Gunthorpe wrote:

Re: [RFC PATCH 0/8] Reimplement huge pages without hugepd on powerpc 8xx

2024-04-15 Thread Christophe Leroy
Le 12/04/2024 à 16:30, Peter Xu a écrit : > On Fri, Apr 12, 2024 at 02:08:03PM +, Christophe Leroy wrote: >> >> >> Le 11/04/2024 à 18:15, Peter Xu a écrit : >>> On Mon, Mar 25, 2024 at 01:38:40PM -0300, Jason Gunthorpe wrote: On Mon, Mar 25, 2024 at 03:55:53PM +0100, Christophe Leroy

Re: [RFC PATCH 0/8] Reimplement huge pages without hugepd on powerpc 8xx

2024-04-12 Thread Peter Xu
On Fri, Apr 12, 2024 at 02:08:03PM +, Christophe Leroy wrote: > > > Le 11/04/2024 à 18:15, Peter Xu a écrit : > > On Mon, Mar 25, 2024 at 01:38:40PM -0300, Jason Gunthorpe wrote: > >> On Mon, Mar 25, 2024 at 03:55:53PM +0100, Christophe Leroy wrote: > >>> This series reimplements hugepages

Re: [RFC PATCH 0/8] Reimplement huge pages without hugepd on powerpc 8xx

2024-04-12 Thread Christophe Leroy
Le 11/04/2024 à 18:15, Peter Xu a écrit : > On Mon, Mar 25, 2024 at 01:38:40PM -0300, Jason Gunthorpe wrote: >> On Mon, Mar 25, 2024 at 03:55:53PM +0100, Christophe Leroy wrote: >>> This series reimplements hugepages with hugepd on powerpc 8xx. >>> >>> Unlike most architectures, powerpc 8xx HW

Re: [RFC PATCH 0/8] Reimplement huge pages without hugepd on powerpc 8xx

2024-04-11 Thread Peter Xu
On Mon, Mar 25, 2024 at 01:38:40PM -0300, Jason Gunthorpe wrote: > On Mon, Mar 25, 2024 at 03:55:53PM +0100, Christophe Leroy wrote: > > This series reimplements hugepages with hugepd on powerpc 8xx. > > > > Unlike most architectures, powerpc 8xx HW requires a two-level > > pagetable topology for

Re: [RFC PATCH 0/8] Reimplement huge pages without hugepd on powerpc 8xx

2024-03-25 Thread Jason Gunthorpe
On Mon, Mar 25, 2024 at 03:55:53PM +0100, Christophe Leroy wrote: > This series reimplements hugepages with hugepd on powerpc 8xx. > > Unlike most architectures, powerpc 8xx HW requires a two-level > pagetable topology for all page sizes. So a leaf PMD-contig approach > is not feasible as such. >

[RFC PATCH 0/8] Reimplement huge pages without hugepd on powerpc 8xx

2024-03-25 Thread Christophe Leroy
This series reimplements hugepages with hugepd on powerpc 8xx. Unlike most architectures, powerpc 8xx HW requires a two-level pagetable topology for all page sizes. So a leaf PMD-contig approach is not feasible as such. Possible sizes are 4k, 16k, 512k and 8M. First level (PGD/PMD) covers 4M