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59 lines
2.3 KiB
Diff
59 lines
2.3 KiB
Diff
From 75a8df6a4644ae9399d277c164e591130ee1c776 Mon Sep 17 00:00:00 2001
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From: Christian Hewitt <christianshewitt@gmail.com>
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Date: Wed, 20 Mar 2024 13:28:08 +0000
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Subject: [PATCH 35/53] FROMLIST(v1): drm/panfrost: fix power transition
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timeout warnings
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Increase the timeout value to prevent system logs on Amlogic boards flooding
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with power transition warnings:
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[ 13.047638] panfrost ffe40000.gpu: shader power transition timeout
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[ 13.048674] panfrost ffe40000.gpu: l2 power transition timeout
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[ 13.937324] panfrost ffe40000.gpu: shader power transition timeout
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[ 13.938351] panfrost ffe40000.gpu: l2 power transition timeout
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...
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[39829.506904] panfrost ffe40000.gpu: shader power transition timeout
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[39829.507938] panfrost ffe40000.gpu: l2 power transition timeout
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[39949.508369] panfrost ffe40000.gpu: shader power transition timeout
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[39949.509405] panfrost ffe40000.gpu: l2 power transition timeout
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The 2000 value has been found through trial and error testing on Amlogic boards
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with G52 and G31 GPU's.
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Fixes: 22aa1a209018 ("drm/panfrost: Really power off GPU cores in panfrost_gpu_power_off()")
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Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
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---
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drivers/gpu/drm/panfrost/panfrost_gpu.c | 6 +++---
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1 file changed, 3 insertions(+), 3 deletions(-)
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diff --git a/drivers/gpu/drm/panfrost/panfrost_gpu.c b/drivers/gpu/drm/panfrost/panfrost_gpu.c
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index 9063ce254642..fd8e44992184 100644
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--- a/drivers/gpu/drm/panfrost/panfrost_gpu.c
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+++ b/drivers/gpu/drm/panfrost/panfrost_gpu.c
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@@ -441,19 +441,19 @@ void panfrost_gpu_power_off(struct panfrost_device *pfdev)
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gpu_write(pfdev, SHADER_PWROFF_LO, pfdev->features.shader_present);
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ret = readl_relaxed_poll_timeout(pfdev->iomem + SHADER_PWRTRANS_LO,
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- val, !val, 1, 1000);
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+ val, !val, 1, 2000);
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if (ret)
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dev_err(pfdev->dev, "shader power transition timeout");
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gpu_write(pfdev, TILER_PWROFF_LO, pfdev->features.tiler_present);
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ret = readl_relaxed_poll_timeout(pfdev->iomem + TILER_PWRTRANS_LO,
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- val, !val, 1, 1000);
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+ val, !val, 1, 2000);
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if (ret)
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dev_err(pfdev->dev, "tiler power transition timeout");
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gpu_write(pfdev, L2_PWROFF_LO, pfdev->features.l2_present);
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ret = readl_poll_timeout(pfdev->iomem + L2_PWRTRANS_LO,
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- val, !val, 0, 1000);
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+ val, !val, 0, 2000);
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if (ret)
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dev_err(pfdev->dev, "l2 power transition timeout");
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}
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--
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2.34.1
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