Messages in this thread | | | Date | Fri, 8 Nov 2013 12:04:34 -0500 | From | Santosh Shilimkar <> | Subject | Re: [PATCH] ARM: Save/Restore 64-bit TTBR registers on LPAE suspend/resume |
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On Thursday 07 November 2013 08:20 PM, Stephen Boyd wrote: > From: Mahesh Sivasubramanian <msivasub@codeaurora.org> > > LPAE enabled kernels use the 64-bit version of TTBR0 and TTBR1 > registers. If we're running an LPAE kernel, fill the upper half > of TTBR0 with 0 because we're setting it to the idmap here (the > idmap is guaranteed to be < 4Gb) and fully restore TTBR1 instead > of just restoring the lower 32 bits. Failure to do so can cause > failures on resume from suspend when these registers are only > half restored. > > Signed-off-by: Mahesh Sivasubramanian <msivasub@codeaurora.org> > Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> > --- Looks like the trick of TTBR1 as discussed on irc worked for you. Patch looks good to me. Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
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