https://bugs.kde.org/show_bug.cgi?id=377966
Peter Maydell <peter.mayd...@linaro.org> changed:
What |Removed |Added
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CC| |peter.mayd...@linaro.org
--- Comment #2 from Peter Maydell <peter.mayd...@linaro.org> ---
You can read the DCZID_EL0 register, which will tell you both (a) whether it's
permitted to use DC ZVA and (b) the size of the cache line affected. A
big.Little system will always report the same cache line size for this purpose
regardless of core -- it would be impossible to use DC ZVA reliably otherwise.
(There is at least one SoC with a system integration bug where it reports
different values on different cores, but the fix for this is at the Linux
kernel level where the kernel can check for such errata and set the register up
to trap so the kernel can fix up the reported values.)
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