Messages in this thread | | | Subject | Re: [PATCH] arm64: add PAGE_ALIGNED_DATA to linker script | From | Mark Salter <> | Date | Fri, 11 Oct 2013 08:18:41 -0400 |
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On Wed, 2013-10-09 at 11:14 +0100, Will Deacon wrote: > > @@ -110,6 +110,7 @@ SECTIONS > > */ > > INIT_TASK_DATA(THREAD_SIZE) > > NOSAVE_DATA > > + PAGE_ALIGNED_DATA(PAGE_SIZE) > > CACHELINE_ALIGNED_DATA(64) > > READ_MOSTLY_DATA(64) > > Can we just replace this chunk with RW_DATA_SECTION(64, PAGE_SIZE, > THREAD_SIZE) instead? >
I took a look at this. It can be done, but the RW_DATA_SECTION aligns data to PAGE_SIZE where the existing alignment is THREAD_SIZE. So using RW_DATA_SECTION would waste some space if using 64K pagesize.
--Mark
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