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https://abf.rosa.ru/djam/kernel-5.15.git
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28 lines
1 KiB
Diff
28 lines
1 KiB
Diff
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From 5192df6d13aa5ad12c5ade843a598b428760d9c0 Mon Sep 17 00:00:00 2001
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From: "Vadim V. Vlasov" <vvv19xx@gmail.com>
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Date: Fri, 11 Dec 2020 16:55:06 +0300
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Subject: [PATCH] drm/panfrost: Trim affinity for Mali T620
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libmali uses 0xf affinity instead of 0xff for jobs in slot 1.
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Looks like this resolves problem with cache incoherency.
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---
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drivers/gpu/drm/panfrost/panfrost_job.c | 2 ++
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1 file changed, 2 insertions(+)
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diff --git a/drivers/gpu/drm/panfrost/panfrost_job.c b/drivers/gpu/drm/panfrost/panfrost_job.c
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index 04e6f6f9b742..28a1a8f50fad 100644
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--- a/drivers/gpu/drm/panfrost/panfrost_job.c
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+++ b/drivers/gpu/drm/panfrost/panfrost_job.c
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@@ -143,6 +143,8 @@ static void panfrost_job_write_affinity(struct panfrost_device *pfdev,
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* multiple (2) coherent core groups
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*/
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affinity = pfdev->features.shader_present;
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+ if (panfrost_model_eq(pfdev, 0x620) && js == 1)
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+ affinity &= 0xf;
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job_write(pfdev, JS_AFFINITY_NEXT_LO(js), affinity & 0xFFFFFFFF);
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job_write(pfdev, JS_AFFINITY_NEXT_HI(js), affinity >> 32);
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--
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2.31.1
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