On Tue, Feb 27, 2018 at 01:07:06PM +0100, Christian König wrote:
> Hi guys,
>
> at least on amdgpu and radeon the page array allocated by ttm_dma_tt_init is
> completely unused in the case of DMA-buf sharing. So I'm trying to get rid
> of that by only allocating the DMA address array.
>
> Now the
Skeggs
; Ilia Mirkin ; nouveau
Subject: Re: [PATCH 4/5] drm/ttm: add ttm_sg_tt_init
Ping?
Am 27.02.2018 um 13:07 schrieb Christian König:
> Hi guys,
>
> at least on amdgpu and radeon the page array allocated by
> ttm_dma_tt_init is completely unused in the case of DMA-buf shari
On Mon, Mar 5, 2018 at 10:06 PM, Christian König
wrote:
> Ping?
On a quick look, it looks like both are used sometimes. I believe
this had something to do with the addition of Tegra support, but I'll
need some time to look into the details of why/how these things are
used again.
Ben.
>
>
> Am 2
Ping?
Am 27.02.2018 um 13:07 schrieb Christian König:
Hi guys,
at least on amdgpu and radeon the page array allocated by
ttm_dma_tt_init is completely unused in the case of DMA-buf sharing.
So I'm trying to get rid of that by only allocating the DMA address
array.
Now the only other user o
Hi guys,
at least on amdgpu and radeon the page array allocated by
ttm_dma_tt_init is completely unused in the case of DMA-buf sharing. So
I'm trying to get rid of that by only allocating the DMA address array.
Now the only other user of DMA-buf together with ttm_dma_tt_init is
Nouveau. So m
This allows drivers to only allocate dma addresses, but not a page
array.
Signed-off-by: Christian König
---
drivers/gpu/drm/ttm/ttm_tt.c | 54
include/drm/ttm/ttm_tt.h | 2 ++
2 files changed, 47 insertions(+), 9 deletions(-)
diff --git a/drive
