mirror of
https://github.com/linux-msm/laptops-kernel.git
synced 2026-08-13 14:19:53 -07:00
Mike Rapoport (Microsoft)andAndrew Morton
6215d9f447
Reduce 22 declarations of empty_zero_page to 3 and 23 declarations of ZERO_PAGE() to 4. Every architecture defines empty_zero_page that way or another, but for the most of them it is always a page aligned page in BSS and most definitions of ZERO_PAGE do virt_to_page(empty_zero_page). Move Linus vetted x86 definition of empty_zero_page and ZERO_PAGE() to the core MM and drop these definitions in architectures that do not implement colored zero page (MIPS and s390). ZERO_PAGE() remains a macro because turning it to a wrapper for a static inline causes severe pain in header dependencies. For the most part the change is mechanical, with these being noteworthy: * alpha: aliased empty_zero_page with ZERO_PGE that was also used for boot parameters. Switching to a generic empty_zero_page removes the aliasing and keeps ZERO_PGE for boot parameters only * arm64: uses __pa_symbol() in ZERO_PAGE() so that definition of ZERO_PAGE() is kept intact. * m68k/parisc/um: allocated empty_zero_page from memblock, although they do not support zero page coloring and having it in BSS will work fine. * sparc64 can have empty_zero_page in BSS rather allocate it, but it can't use virt_to_page() for BSS. Keep it's definition of ZERO_PAGE() but instead of allocating it, make mem_map_zero point to empty_zero_page. * sh: used empty_zero_page for boot parameters at the very early boot. Rename the parameters page to boot_params_page and let sh use the generic empty_zero_page. * hexagon: had an amusing comment about empty_zero_page /* A handy thing to have if one has the RAM. Declared in head.S */ that unfortunately had to go :) Link: https://lkml.kernel.org/r/20260211103141.3215197-4-rppt@kernel.org Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org> Acked-by: Helge Deller <deller@gmx.de> [parisc] Tested-by: Helge Deller <deller@gmx.de> [parisc] Reviewed-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org> Acked-by: Dave Hansen <dave.hansen@linux.intel.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Magnus Lindholm <linmag7@gmail.com> [alpha] Acked-by: Dinh Nguyen <dinguyen@kernel.org> [nios2] Acked-by: Andreas Larsson <andreas@gaisler.com> [sparc] Acked-by: David Hildenbrand (Arm) <david@kernel.org> Acked-by: Liam R. Howlett <Liam.Howlett@oracle.com> Cc: "Borislav Petkov (AMD)" <bp@alien8.de> Cc: David S. Miller <davem@davemloft.net> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Guo Ren <guoren@kernel.org> Cc: Huacai Chen <chenhuacai@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: Madhavan Srinivasan <maddy@linux.ibm.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@suse.com> Cc: Michal Simek <monstr@monstr.eu> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Richard Weinberger <richard@nod.at> Cc: Russell King <linux@armlinux.org.uk> Cc: Stafford Horne <shorne@gmail.com> Cc: Suren Baghdasaryan <surenb@google.com> Cc: Vineet Gupta <vgupta@kernel.org> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
118 lines
3.3 KiB
C
118 lines
3.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <linux/module.h>
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#include <linux/string.h>
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#include <linux/uaccess.h>
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#include <linux/delay.h>
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#include <linux/mm.h>
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#include <asm/checksum.h>
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#include <asm/sections.h>
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EXPORT_SYMBOL(memchr);
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EXPORT_SYMBOL(memcpy);
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EXPORT_SYMBOL(memset);
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EXPORT_SYMBOL(memmove);
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EXPORT_SYMBOL(__copy_user);
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EXPORT_SYMBOL(__udelay);
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EXPORT_SYMBOL(__ndelay);
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EXPORT_SYMBOL(__const_udelay);
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EXPORT_SYMBOL(strlen);
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EXPORT_SYMBOL(csum_partial);
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EXPORT_SYMBOL(csum_partial_copy_generic);
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EXPORT_SYMBOL(copy_page);
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EXPORT_SYMBOL(__clear_user);
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#ifdef CONFIG_FLATMEM
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/* need in pfn_valid macro */
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EXPORT_SYMBOL(min_low_pfn);
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EXPORT_SYMBOL(max_low_pfn);
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#endif
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#define DECLARE_EXPORT(name) \
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extern void name(void);EXPORT_SYMBOL(name)
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DECLARE_EXPORT(__udivsi3);
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DECLARE_EXPORT(__sdivsi3);
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DECLARE_EXPORT(__lshrsi3);
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DECLARE_EXPORT(__ashrsi3);
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DECLARE_EXPORT(__ashlsi3);
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DECLARE_EXPORT(__lshrsi3_r0);
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DECLARE_EXPORT(__ashrsi3_r0);
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DECLARE_EXPORT(__ashlsi3_r0);
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DECLARE_EXPORT(__ashiftrt_r4_0);
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DECLARE_EXPORT(__ashiftrt_r4_1);
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DECLARE_EXPORT(__ashiftrt_r4_2);
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DECLARE_EXPORT(__ashiftrt_r4_3);
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DECLARE_EXPORT(__ashiftrt_r4_4);
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DECLARE_EXPORT(__ashiftrt_r4_5);
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DECLARE_EXPORT(__ashiftrt_r4_6);
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DECLARE_EXPORT(__ashiftrt_r4_7);
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DECLARE_EXPORT(__ashiftrt_r4_8);
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DECLARE_EXPORT(__ashiftrt_r4_9);
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DECLARE_EXPORT(__ashiftrt_r4_10);
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DECLARE_EXPORT(__ashiftrt_r4_11);
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DECLARE_EXPORT(__ashiftrt_r4_12);
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DECLARE_EXPORT(__ashiftrt_r4_13);
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DECLARE_EXPORT(__ashiftrt_r4_14);
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DECLARE_EXPORT(__ashiftrt_r4_15);
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DECLARE_EXPORT(__ashiftrt_r4_16);
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DECLARE_EXPORT(__ashiftrt_r4_17);
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DECLARE_EXPORT(__ashiftrt_r4_18);
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DECLARE_EXPORT(__ashiftrt_r4_19);
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DECLARE_EXPORT(__ashiftrt_r4_20);
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DECLARE_EXPORT(__ashiftrt_r4_21);
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DECLARE_EXPORT(__ashiftrt_r4_22);
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DECLARE_EXPORT(__ashiftrt_r4_23);
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DECLARE_EXPORT(__ashiftrt_r4_24);
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DECLARE_EXPORT(__ashiftrt_r4_25);
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DECLARE_EXPORT(__ashiftrt_r4_26);
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DECLARE_EXPORT(__ashiftrt_r4_27);
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DECLARE_EXPORT(__ashiftrt_r4_28);
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DECLARE_EXPORT(__ashiftrt_r4_29);
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DECLARE_EXPORT(__ashiftrt_r4_30);
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DECLARE_EXPORT(__ashiftrt_r4_31);
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DECLARE_EXPORT(__ashiftrt_r4_32);
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DECLARE_EXPORT(__movstr);
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DECLARE_EXPORT(__movstrSI8);
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DECLARE_EXPORT(__movstrSI12);
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DECLARE_EXPORT(__movstrSI16);
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DECLARE_EXPORT(__movstrSI20);
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DECLARE_EXPORT(__movstrSI24);
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DECLARE_EXPORT(__movstrSI28);
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DECLARE_EXPORT(__movstrSI32);
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DECLARE_EXPORT(__movstrSI36);
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DECLARE_EXPORT(__movstrSI40);
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DECLARE_EXPORT(__movstrSI44);
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DECLARE_EXPORT(__movstrSI48);
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DECLARE_EXPORT(__movstrSI52);
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DECLARE_EXPORT(__movstrSI56);
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DECLARE_EXPORT(__movstrSI60);
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DECLARE_EXPORT(__movstr_i4_even);
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DECLARE_EXPORT(__movstr_i4_odd);
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DECLARE_EXPORT(__movstrSI12_i4);
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DECLARE_EXPORT(__movmem);
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DECLARE_EXPORT(__movmemSI8);
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DECLARE_EXPORT(__movmemSI12);
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DECLARE_EXPORT(__movmemSI16);
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DECLARE_EXPORT(__movmemSI20);
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DECLARE_EXPORT(__movmemSI24);
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DECLARE_EXPORT(__movmemSI28);
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DECLARE_EXPORT(__movmemSI32);
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DECLARE_EXPORT(__movmemSI36);
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DECLARE_EXPORT(__movmemSI40);
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DECLARE_EXPORT(__movmemSI44);
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DECLARE_EXPORT(__movmemSI48);
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DECLARE_EXPORT(__movmemSI52);
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DECLARE_EXPORT(__movmemSI56);
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DECLARE_EXPORT(__movmemSI60);
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DECLARE_EXPORT(__movmem_i4_even);
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DECLARE_EXPORT(__movmem_i4_odd);
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DECLARE_EXPORT(__movmemSI12_i4);
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DECLARE_EXPORT(__udiv_qrnnd_16);
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DECLARE_EXPORT(__sdivsi3_i4);
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DECLARE_EXPORT(__udivsi3_i4);
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DECLARE_EXPORT(__sdivsi3_i4i);
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DECLARE_EXPORT(__udivsi3_i4i);
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#ifdef CONFIG_MCOUNT
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DECLARE_EXPORT(mcount);
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#endif
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