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40 lines
1.2 KiB
Diff
40 lines
1.2 KiB
Diff
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From f1f228c84864bad0bb07de1c72ceafaec035ac15 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.org>
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Date: Mon, 11 Nov 2019 20:18:08 +0000
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Subject: [PATCH] drm/v3d: Suppress all but the first MMU error
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The v3d driver currently encounters a lot of MMU PTE exceptions, so
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only log the first to avoid swamping the kernel log.
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Signed-off-by: Phil Elwell <phil@raspberrypi.org>
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---
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drivers/gpu/drm/v3d/v3d_irq.c | 3 +++
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1 file changed, 3 insertions(+)
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--- a/drivers/gpu/drm/v3d/v3d_irq.c
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+++ b/drivers/gpu/drm/v3d/v3d_irq.c
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@@ -177,6 +177,7 @@ v3d_hub_irq(int irq, void *arg)
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"GMP",
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};
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const char *client = "?";
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+ static int logged_error;
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V3D_WRITE(V3D_MMU_CTL, V3D_READ(V3D_MMU_CTL));
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@@ -186,6 +187,7 @@ v3d_hub_irq(int irq, void *arg)
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client = v3d41_axi_ids[axi_id];
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}
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+ if (!logged_error)
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dev_err(v3d->dev, "MMU error from client %s (%d) at 0x%llx%s%s%s\n",
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client, axi_id, (long long)vio_addr,
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((intsts & V3D_HUB_INT_MMU_WRV) ?
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@@ -194,6 +196,7 @@ v3d_hub_irq(int irq, void *arg)
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", pte invalid" : ""),
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((intsts & V3D_HUB_INT_MMU_CAP) ?
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", cap exceeded" : ""));
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+ logged_error = 1;
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status = IRQ_HANDLED;
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}
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