On Tue, 28 Aug 2018 05:53:26 +0100,
Jia He <hejia...@gmail.com> wrote:
>
> In commit fe8e93504ce8 ("irqchip/gic-v3-its: Use full range of LPIs"),
> it removes the cap for lpi_id_bits. But it will cause more pointless
> memory footprint.
>
> There is a WARN_ON when my QDF2400 server boots up (pagesize is 4k)
> ============begin===============
[trimming not-so-useful trace]
> ============end============
>
> In its_alloc_lpi_tables, lpi_id_bits is 24 in QDF2400. Then
> its_allocate_prop_table will try to allocate 16M(order 12 if
> pagesize=4k). Thus it causes the WARN_ON.
>
> As said by Marc,
> Capping lpi_id_bits at 16 (which is what we had before) is plenty,
> will save a some memory, and gives some margin before we need to push
> it up again.
>
> This patch re-caps the lpi_id_bits.
>
> Fixes: fe8e93504ce8 ("irqchip/gic-v3-its: Use full range of LPIs")
> Signed-off-by: Jia He <jia...@hxt-semitech.com>
> Suggested-by: Marc Zyngier <marc.zyng...@arm.com>
Thanks for doing this. Small problem with this patch:
The email comes from hejia...@gmail.com, while the sign off is by
jia...@hxt-semitech.com. Your email should start with a:
From: Jia He <jia...@hxt-semitech.com>
Other than that:
Acked-by: Marc Zyngier <marc.zyng...@arm.com>
Thomas, would you mind picking this up so that it gets into the next
convenient -rc?
Thanks,
M. (/me goes back hiking...)
--
Jazz is not dead, it just smell funny.
