Asynchronous eviction [WAS Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction]

On 11/30/2012 10:07 PM, Jerome Glisse wrote: > On Fri, Nov 30, 2012 at 09:35:49PM +0100, Thomas Hellstrom wrote: >> On 11/30/2012 08:25 PM, Jerome Glisse wrote: >>> On Fri, Nov 30, 2012 at 07:31:04PM +0100, Thomas Hellstrom wrote: On 11/30/2012 07:07 PM, Jerome Glisse wrote: > On Fri, Nov

Asynchronous eviction [WAS Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction]

On 11/30/2012 08:25 PM, Jerome Glisse wrote: > On Fri, Nov 30, 2012 at 07:31:04PM +0100, Thomas Hellstrom wrote: >> On 11/30/2012 07:07 PM, Jerome Glisse wrote: >>> On Fri, Nov 30, 2012 at 06:43:36PM +0100, Thomas Hellstrom wrote: On 11/30/2012 06:18 PM, Jerome Glisse wrote: > On Fri, Nov

Asynchronous eviction [WAS Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction]

On 11/30/2012 07:07 PM, Jerome Glisse wrote: > On Fri, Nov 30, 2012 at 06:43:36PM +0100, Thomas Hellstrom wrote: >> On 11/30/2012 06:18 PM, Jerome Glisse wrote: >>> On Fri, Nov 30, 2012 at 12:08 PM, Thomas Hellstrom >>> wrote: On 11/30/2012 05:30 PM, Jerome Glisse wrote: > On Fri, Nov 30

Asynchronous eviction [WAS Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction]

On 11/30/2012 06:18 PM, Jerome Glisse wrote: > On Fri, Nov 30, 2012 at 12:08 PM, Thomas Hellstrom > wrote: >> On 11/30/2012 05:30 PM, Jerome Glisse wrote: >>> On Fri, Nov 30, 2012 at 4:39 AM, Thomas Hellstrom >>> wrote: On 11/29/2012 10:58 PM, Marek Ol??k wrote: > > What I tried to

Asynchronous eviction [WAS Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction]

On 11/30/2012 05:30 PM, Jerome Glisse wrote: > On Fri, Nov 30, 2012 at 4:39 AM, Thomas Hellstrom > wrote: >> On 11/29/2012 10:58 PM, Marek Ol??k wrote: >>> >>> What I tried to point out was that the synchronization shouldn't be >>> needed, because the CPU shouldn't do anything with the contents o

Asynchronous eviction [WAS Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction]

On Fri, Nov 30, 2012 at 10:36:01PM +0100, Thomas Hellstrom wrote: > On 11/30/2012 10:07 PM, Jerome Glisse wrote: > >On Fri, Nov 30, 2012 at 09:35:49PM +0100, Thomas Hellstrom wrote: > >>On 11/30/2012 08:25 PM, Jerome Glisse wrote: > >>>On Fri, Nov 30, 2012 at 07:31:04PM +0100, Thomas Hellstrom wrot

Asynchronous eviction [WAS Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction]

On Fri, Nov 30, 2012 at 09:35:49PM +0100, Thomas Hellstrom wrote: > On 11/30/2012 08:25 PM, Jerome Glisse wrote: > >On Fri, Nov 30, 2012 at 07:31:04PM +0100, Thomas Hellstrom wrote: > >>On 11/30/2012 07:07 PM, Jerome Glisse wrote: > >>>On Fri, Nov 30, 2012 at 06:43:36PM +0100, Thomas Hellstrom wrot

Asynchronous eviction [WAS Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction]

On Fri, Nov 30, 2012 at 07:31:04PM +0100, Thomas Hellstrom wrote: > On 11/30/2012 07:07 PM, Jerome Glisse wrote: > >On Fri, Nov 30, 2012 at 06:43:36PM +0100, Thomas Hellstrom wrote: > >>On 11/30/2012 06:18 PM, Jerome Glisse wrote: > >>>On Fri, Nov 30, 2012 at 12:08 PM, Thomas Hellstrom >>>shipmail

Re: Asynchronous eviction [WAS Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction]

On Fri, Nov 30, 2012 at 10:36:01PM +0100, Thomas Hellstrom wrote: > On 11/30/2012 10:07 PM, Jerome Glisse wrote: > >On Fri, Nov 30, 2012 at 09:35:49PM +0100, Thomas Hellstrom wrote: > >>On 11/30/2012 08:25 PM, Jerome Glisse wrote: > >>>On Fri, Nov 30, 2012 at 07:31:04PM +0100, Thomas Hellstrom wrot

Re: Asynchronous eviction [WAS Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction]

On 11/30/2012 10:07 PM, Jerome Glisse wrote: On Fri, Nov 30, 2012 at 09:35:49PM +0100, Thomas Hellstrom wrote: On 11/30/2012 08:25 PM, Jerome Glisse wrote: On Fri, Nov 30, 2012 at 07:31:04PM +0100, Thomas Hellstrom wrote: On 11/30/2012 07:07 PM, Jerome Glisse wrote: On Fri, Nov 30, 2012 at 06

Re: Asynchronous eviction [WAS Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction]

On Fri, Nov 30, 2012 at 09:35:49PM +0100, Thomas Hellstrom wrote: > On 11/30/2012 08:25 PM, Jerome Glisse wrote: > >On Fri, Nov 30, 2012 at 07:31:04PM +0100, Thomas Hellstrom wrote: > >>On 11/30/2012 07:07 PM, Jerome Glisse wrote: > >>>On Fri, Nov 30, 2012 at 06:43:36PM +0100, Thomas Hellstrom wrot

Asynchronous eviction [WAS Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction]

On Fri, Nov 30, 2012 at 06:43:36PM +0100, Thomas Hellstrom wrote: > On 11/30/2012 06:18 PM, Jerome Glisse wrote: > >On Fri, Nov 30, 2012 at 12:08 PM, Thomas Hellstrom > >wrote: > >>On 11/30/2012 05:30 PM, Jerome Glisse wrote: > >>>On Fri, Nov 30, 2012 at 4:39 AM, Thomas Hellstrom > >>>wrote: > >

Re: Asynchronous eviction [WAS Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction]

On 11/30/2012 08:25 PM, Jerome Glisse wrote: On Fri, Nov 30, 2012 at 07:31:04PM +0100, Thomas Hellstrom wrote: On 11/30/2012 07:07 PM, Jerome Glisse wrote: On Fri, Nov 30, 2012 at 06:43:36PM +0100, Thomas Hellstrom wrote: On 11/30/2012 06:18 PM, Jerome Glisse wrote: On Fri, Nov 30, 2012 at 12

Asynchronous eviction [WAS Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction]

On Fri, Nov 30, 2012 at 12:08 PM, Thomas Hellstrom wrote: > On 11/30/2012 05:30 PM, Jerome Glisse wrote: >> >> On Fri, Nov 30, 2012 at 4:39 AM, Thomas Hellstrom >> wrote: >>> >>> On 11/29/2012 10:58 PM, Marek Ol??k wrote: What I tried to point out was that the synchronization shou

Re: Asynchronous eviction [WAS Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction]

On Fri, Nov 30, 2012 at 07:31:04PM +0100, Thomas Hellstrom wrote: > On 11/30/2012 07:07 PM, Jerome Glisse wrote: > >On Fri, Nov 30, 2012 at 06:43:36PM +0100, Thomas Hellstrom wrote: > >>On 11/30/2012 06:18 PM, Jerome Glisse wrote: > >>>On Fri, Nov 30, 2012 at 12:08 PM, Thomas Hellstrom > >>>wrote

Asynchronous eviction [WAS Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction]

On Fri, Nov 30, 2012 at 4:39 AM, Thomas Hellstrom wrote: > On 11/29/2012 10:58 PM, Marek Ol??k wrote: >> >> >> What I tried to point out was that the synchronization shouldn't be >> needed, because the CPU shouldn't do anything with the contents of >> evicted buffers. The GPU moves the buffers, n

Re: Asynchronous eviction [WAS Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction]

On 11/30/2012 07:07 PM, Jerome Glisse wrote: On Fri, Nov 30, 2012 at 06:43:36PM +0100, Thomas Hellstrom wrote: On 11/30/2012 06:18 PM, Jerome Glisse wrote: On Fri, Nov 30, 2012 at 12:08 PM, Thomas Hellstrom wrote: On 11/30/2012 05:30 PM, Jerome Glisse wrote: On Fri, Nov 30, 2012 at 4:39 AM,

Asynchronous eviction [WAS Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction]

On 11/29/2012 10:58 PM, Marek Ol??k wrote: > > What I tried to point out was that the synchronization shouldn't be > needed, because the CPU shouldn't do anything with the contents of > evicted buffers. The GPU moves the buffers, not the CPU. What does the > CPU do besides updating some kernel stru

Re: Asynchronous eviction [WAS Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction]

On Fri, Nov 30, 2012 at 06:43:36PM +0100, Thomas Hellstrom wrote: > On 11/30/2012 06:18 PM, Jerome Glisse wrote: > >On Fri, Nov 30, 2012 at 12:08 PM, Thomas Hellstrom > >wrote: > >>On 11/30/2012 05:30 PM, Jerome Glisse wrote: > >>>On Fri, Nov 30, 2012 at 4:39 AM, Thomas Hellstrom > >>>wrote: > >

Re: Asynchronous eviction [WAS Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction]

On 11/30/2012 06:18 PM, Jerome Glisse wrote: On Fri, Nov 30, 2012 at 12:08 PM, Thomas Hellstrom wrote: On 11/30/2012 05:30 PM, Jerome Glisse wrote: On Fri, Nov 30, 2012 at 4:39 AM, Thomas Hellstrom wrote: On 11/29/2012 10:58 PM, Marek Olšák wrote: What I tried to point out was that the syn

[PATCH] drm/ttm: add minimum residency constraint for bo eviction

On 11/29/2012 10:58 PM, Marek Ol??k wrote: > On Thu, Nov 29, 2012 at 9:33 PM, Thomas Hellstrom > wrote: >> On 11/29/2012 01:52 PM, Marek Ol??k wrote: >>> On Thu, Nov 29, 2012 at 9:04 AM, Thomas Hellstrom >>> wrote: On 11/29/2012 03:15 AM, Marek Ol??k wrote: > On Thu, Nov 29, 2012 at 12:

Re: Asynchronous eviction [WAS Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction]

On Fri, Nov 30, 2012 at 12:08 PM, Thomas Hellstrom wrote: > On 11/30/2012 05:30 PM, Jerome Glisse wrote: >> >> On Fri, Nov 30, 2012 at 4:39 AM, Thomas Hellstrom >> wrote: >>> >>> On 11/29/2012 10:58 PM, Marek Olšák wrote: What I tried to point out was that the synchronization shoul

Re: Asynchronous eviction [WAS Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction]

On 11/30/2012 05:30 PM, Jerome Glisse wrote: On Fri, Nov 30, 2012 at 4:39 AM, Thomas Hellstrom wrote: On 11/29/2012 10:58 PM, Marek Olšák wrote: What I tried to point out was that the synchronization shouldn't be needed, because the CPU shouldn't do anything with the contents of evicted buffe

Re: Asynchronous eviction [WAS Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction]

On Fri, Nov 30, 2012 at 4:39 AM, Thomas Hellstrom wrote: > On 11/29/2012 10:58 PM, Marek Olšák wrote: >> >> >> What I tried to point out was that the synchronization shouldn't be >> needed, because the CPU shouldn't do anything with the contents of >> evicted buffers. The GPU moves the buffers, no

Asynchronous eviction [WAS Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction]

On 11/29/2012 10:58 PM, Marek Olšák wrote: What I tried to point out was that the synchronization shouldn't be needed, because the CPU shouldn't do anything with the contents of evicted buffers. The GPU moves the buffers, not the CPU. What does the CPU do besides updating some kernel structures?

Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction

On 11/29/2012 10:58 PM, Marek Olšák wrote: On Thu, Nov 29, 2012 at 9:33 PM, Thomas Hellstrom wrote: On 11/29/2012 01:52 PM, Marek Olšák wrote: On Thu, Nov 29, 2012 at 9:04 AM, Thomas Hellstrom wrote: On 11/29/2012 03:15 AM, Marek Olšák wrote: On Thu, Nov 29, 2012 at 12:44 AM, Alan Swanson

[PATCH] drm/ttm: add minimum residency constraint for bo eviction

On Thu, Nov 29, 2012 at 9:33 PM, Thomas Hellstrom wrote: > On 11/29/2012 01:52 PM, Marek Ol??k wrote: >> >> On Thu, Nov 29, 2012 at 9:04 AM, Thomas Hellstrom >> wrote: >>> >>> On 11/29/2012 03:15 AM, Marek Ol??k wrote: On Thu, Nov 29, 2012 at 12:44 AM, Alan Swanson wrote: > >

[PATCH] drm/ttm: add minimum residency constraint for bo eviction

On 11/29/2012 01:52 PM, Marek Ol??k wrote: > On Thu, Nov 29, 2012 at 9:04 AM, Thomas Hellstrom > wrote: >> On 11/29/2012 03:15 AM, Marek Ol??k wrote: >>> On Thu, Nov 29, 2012 at 12:44 AM, Alan Swanson wrote: On Wed, 2012-11-28 at 18:24 -0500, Jerome Glisse wrote: > On Wed, Nov 28, 2012

Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction

On Thu, Nov 29, 2012 at 9:33 PM, Thomas Hellstrom wrote: > On 11/29/2012 01:52 PM, Marek Olšák wrote: >> >> On Thu, Nov 29, 2012 at 9:04 AM, Thomas Hellstrom >> wrote: >>> >>> On 11/29/2012 03:15 AM, Marek Olšák wrote: On Thu, Nov 29, 2012 at 12:44 AM, Alan Swanson wrote: > >>

[PATCH] drm/ttm: add minimum residency constraint for bo eviction

On Thu, Nov 29, 2012 at 9:04 AM, Thomas Hellstrom wrote: > On 11/29/2012 03:15 AM, Marek Ol??k wrote: >> >> On Thu, Nov 29, 2012 at 12:44 AM, Alan Swanson wrote: >>> >>> On Wed, 2012-11-28 at 18:24 -0500, Jerome Glisse wrote: On Wed, Nov 28, 2012 at 6:18 PM, Thomas Hellstrom wrot

Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction

On 11/29/2012 01:52 PM, Marek Olšák wrote: On Thu, Nov 29, 2012 at 9:04 AM, Thomas Hellstrom wrote: On 11/29/2012 03:15 AM, Marek Olšák wrote: On Thu, Nov 29, 2012 at 12:44 AM, Alan Swanson wrote: On Wed, 2012-11-28 at 18:24 -0500, Jerome Glisse wrote: On Wed, Nov 28, 2012 at 6:18 PM, Thoma

[PATCH] drm/ttm: add minimum residency constraint for bo eviction

On Thu, Nov 29, 2012 at 09:41:34AM +0100, Thomas Hellstrom wrote: > On 11/29/2012 12:24 AM, Jerome Glisse wrote: > >On Wed, Nov 28, 2012 at 6:18 PM, Thomas Hellstrom > >wrote: > >>On 11/28/2012 04:58 PM, j.glisse at gmail.com wrote: > >>>From: Jerome Glisse > >>> > >>>This patch add a minimum re

[PATCH] drm/ttm: add minimum residency constraint for bo eviction

On 11/29/2012 12:24 AM, Jerome Glisse wrote: > On Wed, Nov 28, 2012 at 6:18 PM, Thomas Hellstrom > wrote: >> On 11/28/2012 04:58 PM, j.glisse at gmail.com wrote: >>> From: Jerome Glisse >>> >>> This patch add a minimum residency time configurable for each memory >>> pool (VRAM, GTT, ...). Intent

[PATCH] drm/ttm: add minimum residency constraint for bo eviction

On 11/29/2012 03:15 AM, Marek Ol??k wrote: > On Thu, Nov 29, 2012 at 12:44 AM, Alan Swanson wrote: >> On Wed, 2012-11-28 at 18:24 -0500, Jerome Glisse wrote: >>> On Wed, Nov 28, 2012 at 6:18 PM, Thomas Hellstrom >>> wrote: On 11/28/2012 04:58 PM, j.glisse at gmail.com wrote: > From: Jer

Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction

On Thu, Nov 29, 2012 at 09:41:34AM +0100, Thomas Hellstrom wrote: > On 11/29/2012 12:24 AM, Jerome Glisse wrote: > >On Wed, Nov 28, 2012 at 6:18 PM, Thomas Hellstrom > >wrote: > >>On 11/28/2012 04:58 PM, j.gli...@gmail.com wrote: > >>>From: Jerome Glisse > >>> > >>>This patch add a minimum resid

Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction

On Thu, Nov 29, 2012 at 9:04 AM, Thomas Hellstrom wrote: > On 11/29/2012 03:15 AM, Marek Olšák wrote: >> >> On Thu, Nov 29, 2012 at 12:44 AM, Alan Swanson wrote: >>> >>> On Wed, 2012-11-28 at 18:24 -0500, Jerome Glisse wrote: On Wed, Nov 28, 2012 at 6:18 PM, Thomas Hellstrom wrote

[PATCH] drm/ttm: add minimum residency constraint for bo eviction

On Thu, Nov 29, 2012 at 12:44 AM, Alan Swanson wrote: > On Wed, 2012-11-28 at 18:24 -0500, Jerome Glisse wrote: >> On Wed, Nov 28, 2012 at 6:18 PM, Thomas Hellstrom >> wrote: >> > On 11/28/2012 04:58 PM, j.glisse at gmail.com wrote: >> >> >> >> From: Jerome Glisse >> >> >> >> This patch add a m

Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction

On 11/29/2012 12:24 AM, Jerome Glisse wrote: On Wed, Nov 28, 2012 at 6:18 PM, Thomas Hellstrom wrote: On 11/28/2012 04:58 PM, j.gli...@gmail.com wrote: From: Jerome Glisse This patch add a minimum residency time configurable for each memory pool (VRAM, GTT, ...). Intention is to avoid having

[PATCH] drm/ttm: add minimum residency constraint for bo eviction

On 11/28/2012 04:58 PM, j.glisse at gmail.com wrote: > From: Jerome Glisse > > This patch add a minimum residency time configurable for each memory > pool (VRAM, GTT, ...). Intention is to avoid having a lot of memory > eviction from VRAM up to a point where the GPU pretty much spend all > it's ti

Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction

On 11/29/2012 03:15 AM, Marek Olšák wrote: On Thu, Nov 29, 2012 at 12:44 AM, Alan Swanson wrote: On Wed, 2012-11-28 at 18:24 -0500, Jerome Glisse wrote: On Wed, Nov 28, 2012 at 6:18 PM, Thomas Hellstrom wrote: On 11/28/2012 04:58 PM, j.gli...@gmail.com wrote: From: Jerome Glisse This patc

[PATCH] drm/ttm: add minimum residency constraint for bo eviction

On Wed, 2012-11-28 at 18:24 -0500, Jerome Glisse wrote: > On Wed, Nov 28, 2012 at 6:18 PM, Thomas Hellstrom > wrote: > > On 11/28/2012 04:58 PM, j.glisse at gmail.com wrote: > >> > >> From: Jerome Glisse > >> > >> This patch add a minimum residency time configurable for each memory > >> pool (VR

[PATCH] drm/ttm: add minimum residency constraint for bo eviction

On Wed, Nov 28, 2012 at 6:44 PM, Alan Swanson wrote: > On Wed, 2012-11-28 at 18:24 -0500, Jerome Glisse wrote: >> On Wed, Nov 28, 2012 at 6:18 PM, Thomas Hellstrom >> wrote: >> > On 11/28/2012 04:58 PM, j.glisse at gmail.com wrote: >> >> >> >> From: Jerome Glisse >> >> >> >> This patch add a mi

[PATCH] drm/ttm: add minimum residency constraint for bo eviction

On Wed, Nov 28, 2012 at 6:18 PM, Thomas Hellstrom wrote: > On 11/28/2012 04:58 PM, j.glisse at gmail.com wrote: >> >> From: Jerome Glisse >> >> This patch add a minimum residency time configurable for each memory >> pool (VRAM, GTT, ...). Intention is to avoid having a lot of memory >> eviction

Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction

On Thu, Nov 29, 2012 at 12:44 AM, Alan Swanson wrote: > On Wed, 2012-11-28 at 18:24 -0500, Jerome Glisse wrote: >> On Wed, Nov 28, 2012 at 6:18 PM, Thomas Hellstrom >> wrote: >> > On 11/28/2012 04:58 PM, j.gli...@gmail.com wrote: >> >> >> >> From: Jerome Glisse >> >> >> >> This patch add a mini

Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction

On Wed, 2012-11-28 at 18:24 -0500, Jerome Glisse wrote: > On Wed, Nov 28, 2012 at 6:18 PM, Thomas Hellstrom wrote: > > On 11/28/2012 04:58 PM, j.gli...@gmail.com wrote: > >> > >> From: Jerome Glisse > >> > >> This patch add a minimum residency time configurable for each memory > >> pool (VRAM, GT

Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction

On Wed, Nov 28, 2012 at 6:44 PM, Alan Swanson wrote: > On Wed, 2012-11-28 at 18:24 -0500, Jerome Glisse wrote: >> On Wed, Nov 28, 2012 at 6:18 PM, Thomas Hellstrom >> wrote: >> > On 11/28/2012 04:58 PM, j.gli...@gmail.com wrote: >> >> >> >> From: Jerome Glisse >> >> >> >> This patch add a minim

Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction

On Wed, Nov 28, 2012 at 6:18 PM, Thomas Hellstrom wrote: > On 11/28/2012 04:58 PM, j.gli...@gmail.com wrote: >> >> From: Jerome Glisse >> >> This patch add a minimum residency time configurable for each memory >> pool (VRAM, GTT, ...). Intention is to avoid having a lot of memory >> eviction from

Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction

On 11/28/2012 04:58 PM, j.gli...@gmail.com wrote: From: Jerome Glisse This patch add a minimum residency time configurable for each memory pool (VRAM, GTT, ...). Intention is to avoid having a lot of memory eviction from VRAM up to a point where the GPU pretty much spend all it's time moving th

[PATCH] drm/ttm: add minimum residency constraint for bo eviction

From: Jerome Glisse This patch add a minimum residency time configurable for each memory pool (VRAM, GTT, ...). Intention is to avoid having a lot of memory eviction from VRAM up to a point where the GPU pretty much spend all it's time moving things in and out. Signed-off-by: Jerome Glisse ---

[PATCH] drm/ttm: add minimum residency constraint for bo eviction

From: Jerome Glisse This patch add a minimum residency time configurable for each memory pool (VRAM, GTT, ...). Intention is to avoid having a lot of memory eviction from VRAM up to a point where the GPU pretty much spend all it's time moving things in and out. Signed-off-by: Jerome Glisse ---