lkml.org 
[lkml]   [2019]   [Dec]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v2 4/4] drm/msm/a4xx: set interconnect bandwidth vote
On Thu 21 Nov 17:26 PST 2019, Brian Masney wrote:

> Set the two interconnect paths for the GPU to maximum speed for now to
> work towards getting the GPU working upstream. We can revisit a later
> time to optimize this for battery life.
>
> Signed-off-by: Brian Masney <masneyb@onstation.org>

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>

> ---
> drivers/gpu/drm/msm/adreno/a4xx_gpu.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/drivers/gpu/drm/msm/adreno/a4xx_gpu.c b/drivers/gpu/drm/msm/adreno/a4xx_gpu.c
> index b01388a9e89e..253d8d85daad 100644
> --- a/drivers/gpu/drm/msm/adreno/a4xx_gpu.c
> +++ b/drivers/gpu/drm/msm/adreno/a4xx_gpu.c
> @@ -591,6 +591,14 @@ struct msm_gpu *a4xx_gpu_init(struct drm_device *dev)
> goto fail;
> }
>
> + /*
> + * Set the ICC path to maximum speed for now by multiplying the fastest
> + * frequency by the bus width (8). We'll want to scale this later on to
> + * improve battery life.
> + */
> + icc_set_bw(gpu->icc_path, 0, Bps_to_icc(gpu->fast_rate) * 8);
> + icc_set_bw(gpu->ocmem_icc_path, 0, Bps_to_icc(gpu->fast_rate) * 8);
> +
> return gpu;
>
> fail:
> --
> 2.21.0
>

\
 
 \ /
  Last update: 2019-12-12 08:18    [W:0.355 / U:0.060 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site