From: Brian Masney <masneyb@onstation.org>
To: robdclark@gmail.com, sean@poorly.run, robh+dt@kernel.org
Cc: airlied@linux.ie, daniel@ffwll.ch, jcrouse@codeaurora.org,
dianders@chromium.org, linux-arm-msm@vger.kernel.org,
dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org,
linux-kernel@vger.kernel.org, mark.rutland@arm.com,
devicetree@vger.kernel.org
Subject: [PATCH 4/4] drm/msm/a4xx: set interconnect bandwidth vote
Date: Sun, 17 Nov 2019 06:48:25 -0500 [thread overview]
Message-ID: <20191117114825.13541-5-masneyb@onstation.org> (raw)
In-Reply-To: <20191117114825.13541-1-masneyb@onstation.org>
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>
---
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..c631d1df7751 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->gfx_mem_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
prev parent reply other threads:[~2019-11-17 11:48 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-17 11:48 [PATCH 0/4] drm/msm/gpu: add support for ocmem interconnect Brian Masney
2019-11-17 11:48 ` [PATCH 1/4] dt-bindings: drm/msm/gpu: document second interconnect Brian Masney
2019-11-17 11:48 ` [PATCH 2/4] drm/msm/gpu: add support for ocmem interconnect path Brian Masney
2019-11-18 15:57 ` [Freedreno] " Jordan Crouse
2019-11-17 11:48 ` [PATCH 3/4] drm/msm/a3xx: set interconnect bandwidth vote Brian Masney
2019-11-17 11:48 ` Brian Masney [this message]
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