linux.git/arch/mips/mm/pgtable.c, branch for-next

mips: convert various functions to use ptdescs

2023-08-21T20:37:56+00:00

As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.

Some of the functions use the *get*page*() helper functions.  Convert
these to use pagetable_alloc() and ptdesc_address() instead to help
standardize page tables further.

Link: https://lkml.kernel.org/r/20230807230513.102486-24-vishal.moola@gmail.com
Signed-off-by: Vishal Moola (Oracle) 
Acked-by: Mike Rapoport (IBM) 
Cc: Arnd Bergmann 
Cc: Catalin Marinas 
Cc: Christophe Leroy 
Cc: Claudio Imbrenda 
Cc: Dave Hansen 
Cc: David Hildenbrand 
Cc: "David S. Miller" 
Cc: Dinh Nguyen 
Cc: Geert Uytterhoeven 
Cc: Geert Uytterhoeven 
Cc: Guo Ren 
Cc: Huacai Chen 
Cc: Hugh Dickins 
Cc: John Paul Adrian Glaubitz 
Cc: Jonas Bonn 
Cc: Matthew Wilcox 
Cc: Palmer Dabbelt 
Cc: Paul Walmsley 
Cc: Richard Weinberger 
Cc: Thomas Bogendoerfer 
Cc: Yoshinori Sato 
Signed-off-by: Andrew Morton

MIPS&LoongArch&NIOS2: adjust prototypes of p?d_init()

2022-12-12T02:12:11+00:00

Patch series "mm/sparse-vmemmap: Generalise helpers and enable for
LoongArch", v14.

This series is in order to enable sparse-vmemmap for LoongArch.  But
LoongArch cannot use generic helpers directly because MIPS&LoongArch need
to call pgd_init()/pud_init()/pmd_init() when populating page tables.  So
we adjust the prototypes of p?d_init() to make generic helpers can call
them, then enable sparse-vmemmap with generic helpers, and to be further,
generalise vmemmap_populate_hugepages() for ARM64, X86 and LoongArch.


This patch (of 4):

We are preparing to add sparse vmemmap support to LoongArch.  MIPS and
LoongArch need to call pgd_init()/pud_init()/pmd_init() when populating
page tables, so adjust their prototypes to make generic helpers can call
them.

NIOS2 declares pmd_init() but doesn't use, just remove it to avoid build
errors.

Link: https://lkml.kernel.org/r/20221027125253.3458989-1-chenhuacai@loongson.cn
Link: https://lkml.kernel.org/r/20221027125253.3458989-2-chenhuacai@loongson.cn
Signed-off-by: Feiyang Chen 
Signed-off-by: Huacai Chen 
Reviewed-by: Jiaxun Yang 
Reviewed-by: Philippe Mathieu-Daudé 
Reviewed-by: Arnd Bergmann 
Cc: Andy Lutomirski 
Cc: Catalin Marinas 
Cc: Dave Hansen 
Cc: Dinh Nguyen 
Cc: Guo Ren 
Cc: Peter Zijlstra 
Cc: Thomas Bogendoerfer 
Cc: Will Deacon 
Cc: Xuefeng Li 
Cc: Xuerui Wang 
Cc: Min Zhou 
Cc: Muchun Song 
Signed-off-by: Andrew Morton

mips: rename PGD_ORDER to PGD_TABLE_ORDER

2022-07-18T00:14:42+00:00

This is the order of the page table allocation, not the order of a PGD.

While at it remove unused defintion of _PGD_ORDER in asm-offsets.

Link: https://lkml.kernel.org/r/20220703141203.147893-7-rppt@kernel.org
Signed-off-by: Mike Rapoport 
Cc: Arnd Bergmann 
Cc: Dinh Nguyen 
Cc: Guo Ren 
Cc: Helge Deller 
Cc: Huacai Chen 
Cc: James Bottomley 
Cc: "Matthew Wilcox (Oracle)" 
Cc: Max Filippov 
Cc: Thomas Bogendoerfer 
Cc: Xuerui Wang 
Signed-off-by: Andrew Morton

MIPS: Move pgd_alloc() out of header

2017-02-02T15:06:26+00:00

pgd_alloc() references init_mm which is not exported to modules. In
order for KVM to be able to use pgd_alloc() to allocate GVA page tables,
move pgd_alloc() into a new pgtable.c file and export it to modules.

Signed-off-by: James Hogan 
Acked-by: Ralf Baechle 
Cc: Ralf Baechle 
Cc: Paolo Bonzini 
Cc: "Radim Krčmář" 
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org

mips: use generic show_mem()

2008-07-26T19:00:11+00:00

Remove arch-specific show_mem() in favor of the generic version.

This also removes the following redundant information display:

	- pages in swapcache, printed by show_swap_cache_info()

where show_mem() calls show_free_areas(), which calls
show_swap_cache_info().

And show_mem() does now actually print something on configurations
with multiple nodes.

Signed-off-by: Johannes Weiner 
Acked-by: Ralf Baechle 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[MIPS] remove redundant display of free swap space in show_mem()

2008-04-28T16:14:27+00:00

Signed-off-by: Johannes Weiner 
Signed-off-by: Andrew Morton 
Signed-off-by: Ralf Baechle

[MIPS] checkfiles: Fix "need space after that ','" errors.

2007-10-11T22:46:15+00:00

Signed-off-by: Ralf Baechle

[MIPS] sparsemem: fix crash in show_mem

2006-07-13T20:26:22+00:00

With sparsemem, pfn should be checked by pfn_valid() before pfn_to_page().

Signed-off-by: Atsushi Nemoto 
Signed-off-by: Ralf Baechle

Remove obsolete #include

2006-06-30T17:25:36+00:00

Signed-off-by: Jörn Engel 
Signed-off-by: Adrian Bunk

[PATCH] mips: add MIPS-specific support for flatmem/discontigmem

2005-06-25T23:24:25+00:00

2.6.12-git6 doesn't boot on some MIPS machines.  They need the support of flat
memory and discontig memory.

Signed-off-by: Yoichi Yuasa 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds