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			32 lines
		
	
	
	
		
			977 B
		
	
	
	
		
			Diff
		
	
	
	
	
	
			
		
		
	
	
			32 lines
		
	
	
	
		
			977 B
		
	
	
	
		
			Diff
		
	
	
	
	
	
| From cd07072158b104f2e30a14bf5162095bb3b9c230 Mon Sep 17 00:00:00 2001
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| From: P33M <p33m@github.com>
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| Date: Wed, 1 May 2019 15:00:05 +0100
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| Subject: [PATCH 483/493] dts: Increase default coherent pool size
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| 
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| dwc_otg allocates DMA-coherent buffers in atomic context for misaligned
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| transfer buffers. The pool that these allocations come from is set up
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| at boot-time but can be overridden by a commandline parameter -
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| increase this for now to prevent failures seen on 4.19 with multiple
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| USB Ethernet devices.
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| 
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| see: https://github.com/raspberrypi/linux/issues/2924
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| ---
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|  arch/arm/boot/dts/bcm270x.dtsi | 2 +-
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|  1 file changed, 1 insertion(+), 1 deletion(-)
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| 
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| diff --git a/arch/arm/boot/dts/bcm270x.dtsi b/arch/arm/boot/dts/bcm270x.dtsi
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| index 55a03c0d5e1c..ecdb36e69c87 100644
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| --- a/arch/arm/boot/dts/bcm270x.dtsi
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| +++ b/arch/arm/boot/dts/bcm270x.dtsi
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| @@ -3,7 +3,7 @@
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|  
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|  / {
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|  	chosen {
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| -		bootargs = "";
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| +		bootargs = "coherent_pool=1M";
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|  		/delete-property/ stdout-path;
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|  	};
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|  
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| -- 
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| 2.19.1
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| 
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