Messages in this thread | | | Date | Sat, 15 Sep 2018 19:28:03 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: [PATCH] x86, mm: Reserver some memory for bootmem allocator for NO_BOOTMEM |
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On Sun, 16 Sep 2018, Feng Tang wrote: > I have tried to change some header files incluing fixmap.h/apicdef.h/ > vsyscall.h, and most of the .c files compile fine now, but I can not > use the "__end_of_permanent_fixed_addresses" in head_64.S as it is a > enum type, and could not be recognized by assembly code.
Hrmm. I did not think about the enum. So we have two possibilities:
1) Have some preprocessing which provides the info for the assembler
2) Use a constant for the number of PMDs which is defined in a header and then compile time checked against the size of the fixmap in a C-file.
#1 would be preferred, but for a quick fix #2 is okay as well.
Thanks,
tglx
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