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From: Kevin Hilman <khilman@deeprootsystems.com>
To: Tony Lindgren <tony@atomide.com>
Cc: "G, Manjunath Kondaiah" <manjugk@ti.com>,
	linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	Benoit Cousson <b-cousson@ti.com>,
	Santosh Shilimkar <santosh.shilimkar@ti.com>
Subject: Re: [PATCH v1 0/9] OMAP: DMA: hwmod and DMA as platform device
Date: Tue, 14 Dec 2010 16:18:09 -0800	[thread overview]
Message-ID: <87ipyvriri.fsf@deeprootsystems.com> (raw)
In-Reply-To: <20101214231922.GC14990@atomide.com> (Tony Lindgren's message of "Tue, 14 Dec 2010 15:19:23 -0800")

Tony Lindgren <tony@atomide.com> writes:

> * G, Manjunath Kondaiah <manjugk@ti.com> [101203 19:33]:
>> *************************************************************************
>> 
>> Test Report:
>> ************
>> Build:
>> omap2plus_defconfig    : Success
>> omap_osk_5912_defconfig: Success
>> 
>> Boot:
>> OMAP3530Beagle         : Success
>> OMAP4430Blaze(ES2.1)   : Success
>
> Can you please make sure that memory to memory DMA test
> runs OK on OSK5912?x
>
> AFAIK, Kevin tried it a few days ago and it hung.

Yes, it hung, but I didn't have time to debug the root cause until
today.

The reason is that the OMAP1 DMA IRQ numbers used in mach-omap1/dma.c
have no basis in reality. So doing a memory-to-memory transfer using
*all* channels results in spurious interrupts, then hangs.

Will post details in reply to the OMAP1 patch (7/9). 

Kevin

WARNING: multiple messages have this Message-ID (diff)
From: khilman@deeprootsystems.com (Kevin Hilman)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v1 0/9] OMAP: DMA: hwmod and DMA as platform device
Date: Tue, 14 Dec 2010 16:18:09 -0800	[thread overview]
Message-ID: <87ipyvriri.fsf@deeprootsystems.com> (raw)
In-Reply-To: <20101214231922.GC14990@atomide.com> (Tony Lindgren's message of "Tue, 14 Dec 2010 15:19:23 -0800")

Tony Lindgren <tony@atomide.com> writes:

> * G, Manjunath Kondaiah <manjugk@ti.com> [101203 19:33]:
>> *************************************************************************
>> 
>> Test Report:
>> ************
>> Build:
>> omap2plus_defconfig    : Success
>> omap_osk_5912_defconfig: Success
>> 
>> Boot:
>> OMAP3530Beagle         : Success
>> OMAP4430Blaze(ES2.1)   : Success
>
> Can you please make sure that memory to memory DMA test
> runs OK on OSK5912?x
>
> AFAIK, Kevin tried it a few days ago and it hung.

Yes, it hung, but I didn't have time to debug the root cause until
today.

The reason is that the OMAP1 DMA IRQ numbers used in mach-omap1/dma.c
have no basis in reality. So doing a memory-to-memory transfer using
*all* channels results in spurious interrupts, then hangs.

Will post details in reply to the OMAP1 patch (7/9). 

Kevin

  reply	other threads:[~2010-12-15  0:18 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-04  3:43 [PATCH v1 0/9] OMAP: DMA: hwmod and DMA as platform device G, Manjunath Kondaiah
2010-12-04  3:43 ` [PATCH v1 1/9] OMAP: DMA: Replace read/write macros with functions G, Manjunath Kondaiah
2010-12-04  3:43 ` [PATCH v1 2/9] OMAP: DMA: Introduce errata handling feature G, Manjunath Kondaiah
2010-12-04  3:44 ` [PATCH v1 3/9] OMAP2420: hwmod data: add system DMA G, Manjunath Kondaiah
2010-12-15  2:25   ` Paul Walmsley
2010-12-15  2:25     ` Paul Walmsley
2010-12-15 11:09     ` G, Manjunath Kondaiah
2010-12-15 11:09       ` G, Manjunath Kondaiah
2010-12-15 12:15       ` [PATCH v1 3/9] OMAP2420: hwmod data: add system DMA] G, Manjunath Kondaiah
2010-12-15 12:15         ` G, Manjunath Kondaiah
2010-12-15 15:39         ` Paul Walmsley
2010-12-15 15:39           ` Paul Walmsley
2010-12-04  3:44 ` [PATCH v1 4/9] OMAP2430: hwmod data: add system DMA G, Manjunath Kondaiah
2010-12-15  2:27   ` Paul Walmsley
2010-12-15  2:27     ` Paul Walmsley
2010-12-15 10:59     ` G, Manjunath Kondaiah
2010-12-15 10:59       ` G, Manjunath Kondaiah
2010-12-15 15:14       ` Paul Walmsley
2010-12-15 15:14         ` Paul Walmsley
2010-12-15 15:53         ` G, Manjunath Kondaiah
2010-12-15 15:53           ` G, Manjunath Kondaiah
2010-12-04  3:44 ` [PATCH v1 5/9] OMAP3: " G, Manjunath Kondaiah
2010-12-04  3:44 ` [PATCH v1 6/9] OMAP4: " G, Manjunath Kondaiah
2010-12-04  3:44 ` [PATCH v1 7/9] OMAP1: DMA: Implement in platform device model G, Manjunath Kondaiah
2010-12-15  0:40   ` Kevin Hilman
2010-12-15  0:40     ` Kevin Hilman
2010-12-15  0:55     ` Kevin Hilman
2010-12-15  0:55       ` Kevin Hilman
2010-12-15  1:04       ` Tony Lindgren
2010-12-15  1:04         ` Tony Lindgren
2010-12-15  2:01         ` G, Manjunath Kondaiah
2010-12-15  2:01           ` G, Manjunath Kondaiah
2010-12-15  2:44           ` Tony Lindgren
2010-12-15  2:44             ` Tony Lindgren
2010-12-04  3:44 ` [PATCH v1 8/9] OMAP2+: DMA: hwmod: Device registration G, Manjunath Kondaiah
2010-12-04  3:44 ` [PATCH v1 9/9] OMAP: DMA: Convert DMA library into platform driver G, Manjunath Kondaiah
2010-12-07 11:04 ` [PATCH v1 0/9] OMAP: DMA: hwmod and DMA as platform device G, Manjunath Kondaiah
2010-12-07 11:04   ` G, Manjunath Kondaiah
2010-12-14 23:19 ` Tony Lindgren
2010-12-14 23:19   ` Tony Lindgren
2010-12-15  0:18   ` Kevin Hilman [this message]
2010-12-15  0:18     ` Kevin Hilman
2010-12-15  1:37 ` Kevin Hilman
2010-12-15  1:37   ` Kevin Hilman
2010-12-15  1:55   ` Tony Lindgren
2010-12-15  1:55     ` Tony Lindgren
2010-12-15  2:02     ` Kevin Hilman
2010-12-15  2:02       ` Kevin Hilman
2010-12-15  2:08       ` Tony Lindgren
2010-12-15  2:08         ` Tony Lindgren
2010-12-15  1:59   ` G, Manjunath Kondaiah
2010-12-15  1:59     ` G, Manjunath Kondaiah

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