ARM: V7M: Support caches
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Cover letter [PATCH 00/10] ARM: V7M: Support caches
Hi Alex,
Quoted 23 lines · Alexandre Torgue
Hi Vladimir,
Quoted 20 lines · Vladimir Murzin
Hi,
This patch set allows M-class cpus benefit of optional cache support. It originaly was written by Jonny, I've been keeping it localy mainly rebasing over Linux versions.
The main idea behind patches is to reuse existing cache handling code from v7A/R. In case v7M cache operations are provided via memory mapped interface rather than co-processor instructions, so extra macros have been introduced to factor out cache handling logic and low-level operations.
Along with the v7M cache support the first user (Cortex-M7) is introduced.
Patches were tested on MPS2 platform with Cortex-M3/M4/M7. The later one showed significant boot speed-up.
Based on 4.7-rc3.
Quoted 7 lines
Quoted 3 lines
Thanks!
VladimirThanks for the series.
Did you change something in those patches compare to patches you sent in the RFC ?
Only 04, 05, 06 have been changed (each has it's own changelog included).
I did try to hammer patches because of your report of instability with caches on, but all run fine... so nothing has been changed in regard of your case.
Cheers
Vladimir
Quoted 7 lines
Regards.
Alex