[opensuse-kernel] CONFIG_SWIOTLB=n in powerpc vanilla configs
Hi, Is there a reason why we do not set CONFIG_SWIOTLB in the powerpc vanilla configs? The configs are otherwise almost identical do the respective default ones, this is the only difference no explained by our patches. Thanks, Michal -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kernel+owner@opensuse.org
On Mon, Nov 30, 2015 at 02:33:53PM +0100, Michal Marek wrote:
Hi,
Is there a reason why we do not set CONFIG_SWIOTLB in the powerpc vanilla configs? The configs are otherwise almost identical do the respective default ones, this is the only difference no explained by our patches.
I certainly did not set these. And I'd have to look it up in the sources and in the datasheets what it actually means. Maybe Alex knows it off-hand? Torsten -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kernel+owner@opensuse.org
On 2015-11-30 14:41, Torsten Duwe wrote:
On Mon, Nov 30, 2015 at 02:33:53PM +0100, Michal Marek wrote:
Hi,
Is there a reason why we do not set CONFIG_SWIOTLB in the powerpc vanilla configs? The configs are otherwise almost identical do the respective default ones, this is the only difference no explained by our patches.
I certainly did not set these. And I'd have to look it up in the sources and in the datasheets what it actually means. Maybe Alex knows it off-hand?
Upon closer look, CONFIG_SWIOTLB has been enabled in the ppc*/default configs by 36c0ed431467 ("Update to 4.3-rc5.") recently. Honestly, I do not know which setting is appropriate for the machines we want the kernel to run one. But it should be consistent among the default and vanilla configs, IMO. Michal -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kernel+owner@opensuse.org
On Mon, Nov 30, 2015 at 02:50:46PM +0100, Michal Marek wrote:
On 2015-11-30 14:41, Torsten Duwe wrote:
On Mon, Nov 30, 2015 at 02:33:53PM +0100, Michal Marek wrote:
Hi,
Is there a reason why we do not set CONFIG_SWIOTLB in the powerpc vanilla configs? The configs are otherwise almost identical do the respective default ones, this is the only difference no explained by our patches.
I certainly did not set these. And I'd have to look it up in the sources and in the datasheets what it actually means. Maybe Alex knows it off-hand?
Upon closer look, CONFIG_SWIOTLB has been enabled in the ppc*/default configs by 36c0ed431467 ("Update to 4.3-rc5.") recently. Honestly, I do not know which setting is appropriate for the machines we want the kernel to run one. But it should be consistent among the default and vanilla configs, IMO.
Alex is in da house :-) It's basically a little misnomer for DMA bounce buffers. We don't need that, we don't want that. That was quick. Torsten -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kernel+owner@opensuse.org
participants (2)
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Michal Marek -
Torsten Duwe