Messages in this thread | | | Subject | Re: [PATCH 2/3] iommu/ipmmu-vmsa: Increase maximum micro-TLBS to 48 | From | Sergei Shtylyov <> | Date | Tue, 7 Jun 2016 13:59:56 +0300 |
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Hello.
On 6/7/2016 6:39 AM, Magnus Damm wrote:
> From: Magnus Damm <damm+renesas@opensource.se> > > Bump up the maximum numbers of micro-TLBS to 48. > > Each IPMMU device instance get micro-TLB assignment via > the "iommus" property in DT. Older SoCs tend to use a > maximum number of 32 micro-TLBd per IPMMU instance however
Micro-TLBs?
> newer SoCs such as r8a7796 make use of up to 48 micro-TLBs. > > At this point no SoC specific handling is done to validate > the maximum number of micro-TLBs, and because of that the > DT information is assumed to be within correct range for > each particular SoC. > > If needed in the future SoC specific feature flags can be > added to handle the maximum number of micro-TLBs without > requiring DT changes, however at this point this does not > seem necessary. > > Signed-off-by: Magnus Damm <damm+renesas@opensource.se> [...]
MBR, Sergei
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