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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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1f8d419e29
This patch started as simply removing a few never-used macros from asm-ppc64/pgtable.h, then kind of grew. It now makes a bunch of cleanups to the ppc64 low-level header files (with corresponding changes to .c files where necessary) such as: - Abolishing never-used macros - Eliminating multiple #defines with the same purpose - Removing pointless macros (cases where just expanding the macro everywhere turns out clearer and more sensible) - Removing some cases where macros which could be defined in terms of each other weren't - Moving imalloc() related definitions from pgtable.h to their own header file (imalloc.h) - Re-arranging headers to group things more logically - Moving all VSID allocation related things to mmu.h, instead of being split between mmu.h and mmu_context.h - Removing some reserved space for flags from the PMD - we're not using it. - Fix some bugs which broke compile with STRICT_MM_TYPECHECKS. Signed-off-by: David Gibson <dwg@au1.ibm.com> Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
25 lines
698 B
C
25 lines
698 B
C
#ifndef _PPC64_IMALLOC_H
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#define _PPC64_IMALLOC_H
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/*
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* Define the address range of the imalloc VM area.
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*/
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#define PHBS_IO_BASE IOREGIONBASE
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#define IMALLOC_BASE (IOREGIONBASE + 0x80000000ul) /* Reserve 2 gigs for PHBs */
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#define IMALLOC_END (IOREGIONBASE + EADDR_MASK)
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/* imalloc region types */
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#define IM_REGION_UNUSED 0x1
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#define IM_REGION_SUBSET 0x2
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#define IM_REGION_EXISTS 0x4
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#define IM_REGION_OVERLAP 0x8
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#define IM_REGION_SUPERSET 0x10
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extern struct vm_struct * im_get_free_area(unsigned long size);
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extern struct vm_struct * im_get_area(unsigned long v_addr, unsigned long size,
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int region_type);
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unsigned long im_free(void *addr);
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#endif /* _PPC64_IMALLOC_H */
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