Re: [PATCH v2 2/2] drm/ttm: Fix vm page protection handling

2019-12-04 Thread VMware
On 12/4/19 4:26 PM, Michal Hocko wrote: On Wed 04-12-19 16:19:27, Thomas Hellström (VMware) wrote: On 12/4/19 3:42 PM, Michal Hocko wrote: On Wed 04-12-19 15:36:58, Thomas Hellström (VMware) wrote: On 12/4/19 3:35 PM, Michal Hocko wrote: On Wed 04-12-19 15:16:09, Thomas Hellström (VMware)

Re: [PATCH v2 2/2] drm/ttm: Fix vm page protection handling

2019-12-04 Thread Michal Hocko
On Wed 04-12-19 16:19:27, Thomas Hellström (VMware) wrote: > On 12/4/19 3:42 PM, Michal Hocko wrote: > > On Wed 04-12-19 15:36:58, Thomas Hellström (VMware) wrote: > > > On 12/4/19 3:35 PM, Michal Hocko wrote: > > > > On Wed 04-12-19 15:16:09, Thomas Hellström (VMware) wrote: > > > > > On 12/4/19

Re: [PATCH v2 2/2] drm/ttm: Fix vm page protection handling

2019-12-04 Thread VMware
On 12/4/19 3:42 PM, Michal Hocko wrote: On Wed 04-12-19 15:36:58, Thomas Hellström (VMware) wrote: On 12/4/19 3:35 PM, Michal Hocko wrote: On Wed 04-12-19 15:16:09, Thomas Hellström (VMware) wrote: On 12/4/19 2:52 PM, Michal Hocko wrote: On Tue 03-12-19 11:48:53, Thomas Hellström (VMware)

Re: [PATCH v2 2/2] drm/ttm: Fix vm page protection handling

2019-12-04 Thread Michal Hocko
On Wed 04-12-19 15:36:58, Thomas Hellström (VMware) wrote: > On 12/4/19 3:35 PM, Michal Hocko wrote: > > On Wed 04-12-19 15:16:09, Thomas Hellström (VMware) wrote: > > > On 12/4/19 2:52 PM, Michal Hocko wrote: > > > > On Tue 03-12-19 11:48:53, Thomas Hellström (VMware) wrote: > > > > > From:

Re: [PATCH v2 2/2] drm/ttm: Fix vm page protection handling

2019-12-04 Thread VMware
On 12/4/19 3:35 PM, Michal Hocko wrote: On Wed 04-12-19 15:16:09, Thomas Hellström (VMware) wrote: On 12/4/19 2:52 PM, Michal Hocko wrote: On Tue 03-12-19 11:48:53, Thomas Hellström (VMware) wrote: From: Thomas Hellstrom TTM graphics buffer objects may, transparently to user-space, move

Re: [PATCH v2 2/2] drm/ttm: Fix vm page protection handling

2019-12-04 Thread Michal Hocko
On Wed 04-12-19 15:16:09, Thomas Hellström (VMware) wrote: > On 12/4/19 2:52 PM, Michal Hocko wrote: > > On Tue 03-12-19 11:48:53, Thomas Hellström (VMware) wrote: > > > From: Thomas Hellstrom > > > > > > TTM graphics buffer objects may, transparently to user-space, move > > > between IO and

Re: [PATCH v2 2/2] drm/ttm: Fix vm page protection handling

2019-12-04 Thread VMware
On 12/4/19 2:52 PM, Michal Hocko wrote: On Tue 03-12-19 11:48:53, Thomas Hellström (VMware) wrote: From: Thomas Hellstrom TTM graphics buffer objects may, transparently to user-space, move between IO and system memory. When that happens, all PTEs pointing to the old location are zapped

Re: [PATCH v2 2/2] drm/ttm: Fix vm page protection handling

2019-12-04 Thread Michal Hocko
On Tue 03-12-19 11:48:53, Thomas Hellström (VMware) wrote: > From: Thomas Hellstrom > > TTM graphics buffer objects may, transparently to user-space, move > between IO and system memory. When that happens, all PTEs pointing to the > old location are zapped before the move and then faulted in