From: Tony Lindgren <tony@atomide.com>
To: Russell King - ARM Linux <linux@arm.linux.org.uk>
Cc: dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-omap@vger.kernel.org,
Dan Williams <dan.j.williams@intel.com>,
Vinod Koul <vinod.koul@intel.com>
Subject: Re: [PATCH RFC 00/26] Migrate more OMAP DMA code to DMA engine
Date: Tue, 7 Jan 2014 17:21:11 -0800 [thread overview]
Message-ID: <20140108012110.GL5074@atomide.com> (raw)
In-Reply-To: <20140102150836.GA3826@n2100.arm.linux.org.uk>
* Russell King - ARM Linux <linux@arm.linux.org.uk> [140102 07:11]:
> The following patch series moves code to setup the DMA hardware and
> service interrupts from the hardware to the DMA engine driver. This
> reduces the dependency on the legacy DMA implementation.
>
> This series does not remove the channel allocation/freeing hooks which
> are used to manage the allocation of physical channels - this is the
> next step in the evolution.
>
> The patches which move the interrupt handling are currently less than
> perfect since they're writing to ENABLE_L0 under a different spinlock,
> and hence RFC only at the moment.
Nice to see this happening. These seem to work for me based on a quick
try on omap2+, but on omap1 the build fails:
arch/arm/mach-omap1/dma.c: In function ‘dma_write’:
arch/arm/mach-omap1/dma.c:186: error: ‘const struct omap_dma_reg’ has no member named ‘size’
Regards,
Tony
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WARNING: multiple messages have this Message-ID (diff)
From: tony@atomide.com (Tony Lindgren)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH RFC 00/26] Migrate more OMAP DMA code to DMA engine
Date: Tue, 7 Jan 2014 17:21:11 -0800 [thread overview]
Message-ID: <20140108012110.GL5074@atomide.com> (raw)
In-Reply-To: <20140102150836.GA3826@n2100.arm.linux.org.uk>
* Russell King - ARM Linux <linux@arm.linux.org.uk> [140102 07:11]:
> The following patch series moves code to setup the DMA hardware and
> service interrupts from the hardware to the DMA engine driver. This
> reduces the dependency on the legacy DMA implementation.
>
> This series does not remove the channel allocation/freeing hooks which
> are used to manage the allocation of physical channels - this is the
> next step in the evolution.
>
> The patches which move the interrupt handling are currently less than
> perfect since they're writing to ENABLE_L0 under a different spinlock,
> and hence RFC only at the moment.
Nice to see this happening. These seem to work for me based on a quick
try on omap2+, but on omap1 the build fails:
arch/arm/mach-omap1/dma.c: In function ?dma_write?:
arch/arm/mach-omap1/dma.c:186: error: ?const struct omap_dma_reg? has no member named ?size?
Regards,
Tony
next prev parent reply other threads:[~2014-01-08 1:21 UTC|newest]
Thread overview: 112+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-02 15:08 [PATCH RFC 00/26] Migrate more OMAP DMA code to DMA engine Russell King - ARM Linux
2014-01-02 15:08 ` Russell King - ARM Linux
2014-01-02 15:08 ` [PATCH RFC 01/26] dmaengine: omap-dma: use devm_kzalloc() to allocate omap_dmadev Russell King
2014-01-02 15:08 ` Russell King
2014-01-02 15:09 ` [PATCH RFC 02/26] dmaengine: omap-dma: provide a hook to get the underlying DMA platform ops Russell King
2014-01-02 15:09 ` Russell King
2014-01-02 15:09 ` [PATCH RFC 03/26] dmaengine: omap-dma: program hardware directly Russell King
2014-01-02 15:09 ` Russell King
2014-01-22 12:54 ` Sricharan R
2014-01-22 12:54 ` Sricharan R
2014-01-22 14:13 ` Russell King - ARM Linux
2014-01-22 14:13 ` Russell King - ARM Linux
2014-01-02 15:09 ` [PATCH RFC 04/26] dmaengine: omap-dma: consolidate writes to DMA registers Russell King
2014-01-02 15:09 ` Russell King
2014-01-02 15:09 ` [PATCH RFC 05/26] dmaengine: omap-dma: control start/stop directly Russell King
2014-01-02 15:09 ` Russell King
2014-01-13 22:18 ` Tony Lindgren
2014-01-13 22:18 ` Tony Lindgren
2014-01-02 15:09 ` [PATCH RFC 06/26] dmaengine: omap-dma: move reading of dma position to omap-dma.c Russell King
2014-01-02 15:09 ` Russell King
2014-01-02 15:10 ` [PATCH RFC 07/26] dmaengine: omap-dma: consolidate setup of CSDP Russell King
2014-01-02 15:10 ` Russell King
2014-01-02 15:10 ` [PATCH RFC 08/26] dmaengine: omap-dma: consolidate setup of CCR Russell King
2014-01-02 15:10 ` Russell King
2014-01-13 22:14 ` Tony Lindgren
2014-01-13 22:14 ` Tony Lindgren
2014-01-13 23:12 ` Russell King - ARM Linux
2014-01-13 23:12 ` Russell King - ARM Linux
2014-01-14 13:39 ` Russell King - ARM Linux
2014-01-14 13:39 ` Russell King - ARM Linux
2014-01-14 17:04 ` Tony Lindgren
2014-01-14 17:04 ` Tony Lindgren
2014-01-22 12:55 ` Sricharan R
2014-01-22 12:55 ` Sricharan R
2014-01-22 14:19 ` Russell King - ARM Linux
2014-01-22 14:19 ` Russell King - ARM Linux
2014-01-22 14:39 ` Santosh Shilimkar
2014-01-22 14:39 ` Santosh Shilimkar
2014-01-02 15:10 ` [PATCH RFC 09/26] dmaengine: omap-dma: provide register definitions Russell King
2014-01-02 15:10 ` Russell King
2014-01-02 15:10 ` [PATCH RFC 10/26] dmaengine: omap-dma: move CCR buffering disable errata out of the fast path Russell King
2014-01-02 15:10 ` Russell King
2014-01-02 15:10 ` [PATCH RFC 11/26] dmaengine: omap-dma: consolidate clearing channel status register Russell King
2014-01-02 15:10 ` Russell King
2014-01-02 15:10 ` [PATCH RFC 12/26] dmaengine: omap-dma: improve efficiency loading C.SA/C.EI/C.FI registers Russell King
2014-01-02 15:10 ` Russell King
2014-01-02 15:11 ` [PATCH RFC 13/26] dmaengine: omap-dma: move clnk_ctrl setting to preparation functions Russell King
2014-01-02 15:11 ` Russell King
2014-01-02 15:11 ` [PATCH RFC 14/26] dmaengine: omap-dma: move barrier to omap_dma_start_desc() Russell King
2014-01-02 15:11 ` Russell King
2014-01-02 15:11 ` [PATCH RFC 15/26] dmaengine: omap-dma: use cached CCR value when enabling DMA Russell King
2014-01-02 15:11 ` Russell King
2014-01-02 15:11 ` [PATCH RFC 16/26] dmaengine: omap-dma: provide register read/write functions Russell King
2014-01-02 15:11 ` Russell King
2014-01-02 15:11 ` [PATCH RFC 17/26] dmaengine: omap-dma: cleanup errata 3.3 handling Russell King
2014-01-02 15:11 ` Russell King
2014-01-02 15:11 ` [PATCH RFC 18/26] ARM: omap: remove references to disable_irq_lch Russell King
2014-01-02 15:11 ` Russell King
2014-01-02 15:12 ` [PATCH RFC 19/26] ARM: omap: remove almost-const variables Russell King
2014-01-02 15:12 ` Russell King
2014-01-02 15:12 ` [PATCH RFC 20/26] ARM: omap: clean up DMA register accesses Russell King
2014-01-02 15:12 ` Russell King
2014-01-02 15:49 ` Andy Shevchenko
2014-01-02 15:49 ` Andy Shevchenko
2014-01-02 16:07 ` Russell King - ARM Linux
2014-01-02 16:07 ` Russell King - ARM Linux
2014-01-02 15:12 ` [PATCH RFC 21/26] ARM: omap: dma: get rid of errata global Russell King
2014-01-02 15:12 ` Russell King
2014-01-02 15:12 ` [PATCH RFC 22/26] ARM: omap: move dma channel allocation into plat-omap code Russell King
2014-01-02 15:12 ` Russell King
2014-01-02 15:46 ` Andy Shevchenko
2014-01-02 15:46 ` Andy Shevchenko
2014-01-02 15:12 ` [PATCH RFC 23/26] ARM: omap: dma: get rid of 'p' allocation and clean up Russell King
2014-01-02 15:12 ` Russell King
2014-01-02 15:12 ` [PATCH RFC 24/26] dmaengine: omap-dma: move register read/writes into omap-dma.c Russell King
2014-01-02 15:12 ` Russell King
2014-01-02 15:13 ` [PATCH RFC 25/26] dmaengine: omap-dma: move IRQ handling to omap-dma Russell King
2014-01-02 15:13 ` Russell King
2014-01-02 15:13 ` [PATCH RFC 26/26] ARM: omap2: ensure dma platform device has resources Russell King
2014-01-02 15:13 ` Russell King
2014-01-08 1:21 ` Tony Lindgren [this message]
2014-01-08 1:21 ` [PATCH RFC 00/26] Migrate more OMAP DMA code to DMA engine Tony Lindgren
2014-01-09 15:24 ` Russell King - ARM Linux
2014-01-09 15:24 ` Russell King - ARM Linux
2014-01-13 14:18 ` Russell King - ARM Linux
2014-01-13 14:18 ` Russell King - ARM Linux
2014-01-13 17:37 ` Tony Lindgren
2014-01-13 17:37 ` Tony Lindgren
2014-01-13 18:55 ` Russell King - ARM Linux
2014-01-13 18:55 ` Russell King - ARM Linux
2014-01-13 19:26 ` Tony Lindgren
2014-01-13 19:26 ` Tony Lindgren
2014-01-13 20:34 ` Russell King - ARM Linux
2014-01-13 20:34 ` Russell King - ARM Linux
2014-01-13 21:02 ` Tony Lindgren
2014-01-13 21:02 ` Tony Lindgren
2014-01-13 21:11 ` Russell King - ARM Linux
2014-01-13 21:11 ` Russell King - ARM Linux
2014-01-13 21:21 ` Tony Lindgren
2014-01-13 21:21 ` Tony Lindgren
2014-01-13 21:28 ` Russell King - ARM Linux
2014-01-13 21:28 ` Russell King - ARM Linux
2014-01-13 22:03 ` Tony Lindgren
2014-01-13 22:03 ` Tony Lindgren
2014-01-09 12:37 ` Vinod Koul
2014-01-09 12:37 ` Vinod Koul
-- strict thread matches above, loose matches on Subject: below --
2014-01-02 15:06 Russell King - ARM Linux
2014-01-10 12:16 ` Sricharan R
2014-01-13 14:17 ` Russell King - ARM Linux
2014-01-13 14:17 ` Russell King - ARM Linux
2014-01-17 14:23 ` Sricharan R
2014-01-17 14:23 ` Sricharan R
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