Hi Rob and Philipp, On Tue, Jan 6, 2015 at 10:57 PM, Rob Herring <robherring2 at gmail.com> wrote: > On Tue, Jan 6, 2015 at 10:54 AM, Philipp Zabel <p.zabel at pengutronix.de> wrote: >> Hi Abhilash, >> >> Am Dienstag, den 06.01.2015, 19:57 +0530 schrieb Abhilash Kesavan: >>> >> From the existing dts files, omap, imx, rockchip and exynos seem to be >>> >> the only users of the sram allocator code. I have tested this on >>> >> Exynos5420, Exynos5800 and Exynos7; there is no change in behavior >>> >> seen on these boards. Tested-by for other SoCs would be appreciated. >>> > >>> > Sorry for the delay, these seems to boot OK on omap4, so from that >>> > point of view: >>> > >>> > Tested-by: Tony Lindgren <tony at atomide.com> >>> >>> Thanks a lot for testing this. If someone with imx and rockchip boards >>> could help test this out, then we could look to get this in. >> >> This shouldn't be a problem on i.MX, the coda driver doesn't access SRAM >> from the CPU at all. > > Audio buffers are typically (perhaps not in mainline) in SRAM on i.MX > chips which are accessed by CPU and probably mmap'ed to userspace. > That could cause a mismatch in mappings although I would not expect > both the kernel and user space to touch the buffer. That being said, I > don't think this change should cause problems for i.MX (from what I > can remember). Thanks for the confirmation regarding the i.MX chips. That leaves rockchip, can someone help with it please ? Regards, Abhilash > > Rob
