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![Mike Rapoport](/assets/img/avatar_default.png)
The replacement of <asm/pgrable.h> with <linux/pgtable.h> made the include of the latter in the middle of asm includes. Fix this up with the aid of the below script and manual adjustments here and there. import sys import re if len(sys.argv) is not 3: print "USAGE: %s <file> <header>" % (sys.argv[0]) sys.exit(1) hdr_to_move="#include <linux/%s>" % sys.argv[2] moved = False in_hdrs = False with open(sys.argv[1], "r") as f: lines = f.readlines() for _line in lines: line = _line.rstrip(' ') if line == hdr_to_move: continue if line.startswith("#include <linux/"): in_hdrs = True elif not moved and in_hdrs: moved = True print hdr_to_move print line Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Cain <bcain@codeaurora.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chris Zankel <chris@zankel.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greentime Hu <green.hu@gmail.com> Cc: Greg Ungerer <gerg@linux-m68k.org> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Guo Ren <guoren@kernel.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Helge Deller <deller@gmx.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Ley Foon Tan <ley.foon.tan@intel.com> Cc: Mark Salter <msalter@redhat.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Matt Turner <mattst88@gmail.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Simek <monstr@monstr.eu> Cc: Nick Hu <nickhu@andestech.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Richard Weinberger <richard@nod.at> Cc: Rich Felker <dalias@libc.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Stafford Horne <shorne@gmail.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Vincent Chen <deanbo422@gmail.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Will Deacon <will@kernel.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Link: http://lkml.kernel.org/r/20200514170327.31389-4-rppt@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
178 lines
3.8 KiB
C
178 lines
3.8 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Extensible Firmware Interface
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*
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* Based on Extensible Firmware Interface Specification version 2.4
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*
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* Copyright (C) 2013, 2014 Linaro Ltd.
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*/
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#include <linux/dmi.h>
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#include <linux/efi.h>
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#include <linux/io.h>
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#include <linux/memblock.h>
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#include <linux/mm_types.h>
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#include <linux/preempt.h>
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#include <linux/rbtree.h>
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#include <linux/rwsem.h>
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#include <linux/sched.h>
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#include <linux/slab.h>
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#include <linux/spinlock.h>
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#include <linux/pgtable.h>
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#include <asm/cacheflush.h>
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#include <asm/efi.h>
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#include <asm/mmu.h>
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#include <asm/pgalloc.h>
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#if defined(CONFIG_PTDUMP_DEBUGFS) && defined(CONFIG_ARM64)
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#include <asm/ptdump.h>
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static struct ptdump_info efi_ptdump_info = {
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.mm = &efi_mm,
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.markers = (struct addr_marker[]){
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{ 0, "UEFI runtime start" },
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{ DEFAULT_MAP_WINDOW_64, "UEFI runtime end" },
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{ -1, NULL }
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},
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.base_addr = 0,
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};
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static int __init ptdump_init(void)
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{
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if (efi_enabled(EFI_RUNTIME_SERVICES))
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ptdump_debugfs_register(&efi_ptdump_info, "efi_page_tables");
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return 0;
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}
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device_initcall(ptdump_init);
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#endif
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static bool __init efi_virtmap_init(void)
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{
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efi_memory_desc_t *md;
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efi_mm.pgd = pgd_alloc(&efi_mm);
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mm_init_cpumask(&efi_mm);
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init_new_context(NULL, &efi_mm);
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for_each_efi_memory_desc(md) {
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phys_addr_t phys = md->phys_addr;
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int ret;
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if (!(md->attribute & EFI_MEMORY_RUNTIME))
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continue;
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if (md->virt_addr == 0)
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return false;
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ret = efi_create_mapping(&efi_mm, md);
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if (ret) {
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pr_warn(" EFI remap %pa: failed to create mapping (%d)\n",
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&phys, ret);
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return false;
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}
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}
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if (efi_memattr_apply_permissions(&efi_mm, efi_set_mapping_permissions))
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return false;
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return true;
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}
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/*
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* Enable the UEFI Runtime Services if all prerequisites are in place, i.e.,
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* non-early mapping of the UEFI system table and virtual mappings for all
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* EFI_MEMORY_RUNTIME regions.
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*/
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static int __init arm_enable_runtime_services(void)
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{
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u64 mapsize;
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if (!efi_enabled(EFI_BOOT)) {
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pr_info("EFI services will not be available.\n");
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return 0;
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}
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efi_memmap_unmap();
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mapsize = efi.memmap.desc_size * efi.memmap.nr_map;
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if (efi_memmap_init_late(efi.memmap.phys_map, mapsize)) {
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pr_err("Failed to remap EFI memory map\n");
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return 0;
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}
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if (efi_soft_reserve_enabled()) {
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efi_memory_desc_t *md;
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for_each_efi_memory_desc(md) {
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int md_size = md->num_pages << EFI_PAGE_SHIFT;
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struct resource *res;
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if (!(md->attribute & EFI_MEMORY_SP))
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continue;
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res = kzalloc(sizeof(*res), GFP_KERNEL);
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if (WARN_ON(!res))
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break;
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res->start = md->phys_addr;
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res->end = md->phys_addr + md_size - 1;
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res->name = "Soft Reserved";
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res->flags = IORESOURCE_MEM;
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res->desc = IORES_DESC_SOFT_RESERVED;
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insert_resource(&iomem_resource, res);
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}
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}
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if (efi_runtime_disabled()) {
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pr_info("EFI runtime services will be disabled.\n");
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return 0;
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}
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if (efi_enabled(EFI_RUNTIME_SERVICES)) {
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pr_info("EFI runtime services access via paravirt.\n");
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return 0;
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}
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pr_info("Remapping and enabling EFI services.\n");
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if (!efi_virtmap_init()) {
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pr_err("UEFI virtual mapping missing or invalid -- runtime services will not be available\n");
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return -ENOMEM;
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}
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/* Set up runtime services function pointers */
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efi_native_runtime_setup();
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set_bit(EFI_RUNTIME_SERVICES, &efi.flags);
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return 0;
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}
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early_initcall(arm_enable_runtime_services);
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void efi_virtmap_load(void)
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{
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preempt_disable();
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efi_set_pgd(&efi_mm);
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}
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void efi_virtmap_unload(void)
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{
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efi_set_pgd(current->active_mm);
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preempt_enable();
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}
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static int __init arm_dmi_init(void)
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{
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/*
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* On arm64/ARM, DMI depends on UEFI, and dmi_setup() needs to
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* be called early because dmi_id_init(), which is an arch_initcall
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* itself, depends on dmi_scan_machine() having been called already.
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*/
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dmi_setup();
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return 0;
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}
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core_initcall(arm_dmi_init);
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