32 lines
1.1 KiB
Diff
32 lines
1.1 KiB
Diff
From 571a36167db85f02eee543494804642690368288 Mon Sep 17 00:00:00 2001
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From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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Date: Thu, 21 Sep 2023 16:15:14 +0200
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Subject: [PATCH 012/196] drm/amd/display: Add a warning if the FPU is used
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outside from task context.
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Add a warning if the FPU is used from any context other than task
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context. This is only precaution since the code is not able to be used
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from softirq while the API allows it on x86 for instance.
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Link: https://lore.kernel.org/r/20230921141516.520471-4-bigeasy@linutronix.de
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Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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---
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drivers/gpu/drm/amd/display/amdgpu_dm/dc_fpu.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/dc_fpu.c b/drivers/gpu/drm/amd/display/amdgpu_dm/dc_fpu.c
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index 8bd5926b47e0..4ae4720535a5 100644
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--- a/drivers/gpu/drm/amd/display/amdgpu_dm/dc_fpu.c
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+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/dc_fpu.c
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@@ -84,6 +84,7 @@ void dc_fpu_begin(const char *function_name, const int line)
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{
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int depth;
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+ WARN_ON_ONCE(!in_task());
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preempt_disable();
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depth = __this_cpu_inc_return(fpu_recursion_depth);
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--
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2.43.2
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