Re: [PATCH 0/4] omap4: hsmmc: Adding ADMA support
Tony, On Thu, Jan 20, 2011 at 11:12 PM, Tony Lindgren t...@atomide.com wrote: * Kishore Kadiyala kishore.kadiy...@ti.com [110118 09:19]: This patch series adds support for ADMA on MMC1 MMC2 controllers on OMAP4. There is no performance improvement observed using ADMA over SDMA. Advantage using ADMA could be reducing contention over SDMA. Also the series includes some cleanup. To me it seems that the only sane way to deal with multiple different DMA enginges is to implement them all with drivers/dma/dmaengine.c. Otherwise we'll end up with multiple custom ADMA implementations in each driver. We need to also make SDMA use the dmaengine code. If the current dmaengine code does not support this, we need to improve it to deal with cases like these. Ok, I will check the feasibility of implementing ADMA through dmaengine . -- Regards, Kishore Regards, Tony -- To unsubscribe from this list: send the line unsubscribe linux-omap in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH 0/4] omap4: hsmmc: Adding ADMA support
* Kishore Kadiyala kishore.kadiy...@ti.com [110118 09:19]: This patch series adds support for ADMA on MMC1 MMC2 controllers on OMAP4. There is no performance improvement observed using ADMA over SDMA. Advantage using ADMA could be reducing contention over SDMA. Also the series includes some cleanup. To me it seems that the only sane way to deal with multiple different DMA enginges is to implement them all with drivers/dma/dmaengine.c. Otherwise we'll end up with multiple custom ADMA implementations in each driver. We need to also make SDMA use the dmaengine code. If the current dmaengine code does not support this, we need to improve it to deal with cases like these. Regards, Tony -- To unsubscribe from this list: send the line unsubscribe linux-omap in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[PATCH 0/4] omap4: hsmmc: Adding ADMA support
This patch series adds support for ADMA on MMC1 MMC2 controllers on OMAP4. There is no performance improvement observed using ADMA over SDMA. Advantage using ADMA could be reducing contention over SDMA. Also the series includes some cleanup. The series is based on 2.6.37-rc8 and tested on OMAP4430SDP OMAP3430SDP. Kishore Kadiyala (4): omap: hsmmc: Rename use_dma to xfer_type and define possible transfers omap: hsmmc: Rename and cleanup omap_hsmmc_dma_cleanup omap4: hsmmc: Adding ADMA support for MMC1 MMC2 controllers omap4: hsmmc: enable ADMA for MMC1 MMC2 arch/arm/mach-omap2/hsmmc.c | 13 ++- arch/arm/plat-omap/include/plat/mmc.h |1 + drivers/mmc/host/omap_hsmmc.c | 241 +++-- 3 files changed, 210 insertions(+), 45 deletions(-) -- To unsubscribe from this list: send the line unsubscribe linux-omap in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
