Re: [PATCH 03/40] drm/rockchip: Respect page offset for PRIME mmap calls

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Am Montag, 15. Januar 2018, 18:15:37 CET schrieb Thierry Escande:
> From: Ørjan Eide <orjan.eide@xxxxxxx>
> 
> When mapping external DMA-bufs through the PRIME mmap call, we might be
> given an offset which has to be respected. However for the internal DRM
> GEM mmap path, we have to ignore the fake mmap offset used to identify
> the buffer only. Currently the code always zeroes out vma->vm_pgoff,
> which breaks the former.
> 
> This patch fixes the problem by moving the vm_pgoff assignment to a
> function that is used only for GEM mmap path, so that the PRIME path
> retains the original offset.
> 
> Cc: Daniel Kurtz <djkurtz@xxxxxxxxxxxx>
> Signed-off-by: Ørjan Eide <orjan.eide@xxxxxxx>
> Signed-off-by: Tomasz Figa <tfiga@xxxxxxxxxxxx>
> Signed-off-by: Sean Paul <seanpaul@xxxxxxxxxxxx>
> Signed-off-by: Thierry Escande <thierry.escande@xxxxxxxxxxxxx>

On rk3036 + lima and rk3328 + lima
Tested-by: Heiko Stuebner <heiko@xxxxxxxxx>
_______________________________________________
dri-devel mailing list
dri-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/dri-devel




[Index of Archives]     [Linux DRI Users]     [Linux Intel Graphics]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux