Re: [PATCH] asm-generic: provide generic page_to_phys and phys_to_page implementations
From: Christophe Leroy <hidden>
Date: 2024-10-09 14:38:03
Also in:
linux-alpha, linux-arch, linux-arm-kernel, linux-m68k, linux-mips, linux-riscv, linux-s390, linux-sh, linux-um, lkml, loongarch, sparclinux
Le 09/10/2024 à 13:43, Christoph Hellwig a écrit :
page_to_phys is duplicated by all architectures, and from some strange reason placed in <asm/io.h> where it doesn't fit at all. phys_to_page is only provided by a few architectures despite having a lot of open coded users. Provide generic versions in <asm-generic/memory_model.h> to make these helpers more easily usable. Signed-off-by: Christoph Hellwig <hch@lst.de> --- arch/alpha/include/asm/io.h | 1 - arch/arc/include/asm/io.h | 3 --- arch/arm/include/asm/memory.h | 6 ------ arch/arm64/include/asm/memory.h | 6 ------ arch/csky/include/asm/page.h | 3 --- arch/hexagon/include/asm/page.h | 6 ------ arch/loongarch/include/asm/page.h | 3 --- arch/m68k/include/asm/virtconvert.h | 3 --- arch/microblaze/include/asm/page.h | 1 - arch/mips/include/asm/io.h | 5 ----- arch/nios2/include/asm/io.h | 3 --- arch/openrisc/include/asm/page.h | 2 -- arch/parisc/include/asm/page.h | 1 - arch/powerpc/include/asm/io.h | 12 ------------
As far as I understand, this patch silently drops part of commit
6bf752daca07 ("powerpc: implement CONFIG_DEBUG_VIRTUAL").
Can you please clarify ?
Christophe