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drm/panfrost: fix power transition timeout warnings
Increase the timeout value to prevent system logs on Amlogic boards flooding
with power transition warnings:
[ 13.047638] panfrost ffe40000.gpu: shader power transition timeout
[ 13.048674] panfrost ffe40000.gpu: l2 power transition timeout
[ 13.937324] panfrost ffe40000.gpu: shader power transition timeout
[ 13.938351] panfrost ffe40000.gpu: l2 power transition timeout
...
[39829.506904] panfrost ffe40000.gpu: shader power transition timeout
[39829.507938] panfrost ffe40000.gpu: l2 power transition timeout
[39949.508369] panfrost ffe40000.gpu: shader power transition timeout
[39949.509405] panfrost ffe40000.gpu: l2 power transition timeout
The 2000 value has been found through trial and error testing with devices
using G52 and G31 GPUs.
Fixes: 22aa1a2090
("drm/panfrost: Really power off GPU cores in panfrost_gpu_power_off()")
Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240322164525.2617508-1-christianshewitt@gmail.com
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parent
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1 changed files with 3 additions and 3 deletions
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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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