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270315b823
This contains a handful of cleanups and new features, including: * A handful of cleanups for our page fault handling. * Improvements to how we fill out cacheinfo. * Support for EFI-based systems. --- This contains a merge from the EFI tree that was necessary as some of the EFI support landed over there. It's my first time doing something like this, I haven't included the set_fs stuff because the base branch it depends on hasn't been merged yet. I'll probably have another merge window PR, as there's more in flight (most notably the fix for new binutils I just sent out), but I figured there was no reason to delay this any longer. -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEKzw3R0RoQ7JKlDp6LhMZ81+7GIkFAl+KQ6gTHHBhbG1lckBk YWJiZWx0LmNvbQAKCRAuExnzX7sYibmwD/4qWfOW7R/kUWi08ethcaAhNEWLvqIh 2/KjGLORw+NTZ1F4pEFyQG5LRd3yWDT/UXh/k8gXINqmdclNV01Z3T+O7WuRlISs 07i26W1qRpNeJ7lDVhr9foKpeOU/AXvidgoF330nGlyO4HZkYKhK2yB3t8uGWywr Zt/EpMJeBIRKzWiLhOgLAdYJthhZ9AlnouNnr9myHnO5Ksel+AZ/BKYvn7ZbHMns 6vFUxp6392/LERRRIfDqPsTuxPIYMHjuEsGSESLsjAIyq/shgN1knG/C+zwU5DcK zUDBt1DEP7Tb45w7VBASSjn1M+cUolz9/c2dBhlVcdBlk1GKF+KILSTmWUBpQ8oP ETVAuQK5HTcjy9bVcJMj0Oa3mFshVAAByOH+Wyrdo+qSLkb7y3spPvsL4dyjrKjL +pe6C7WvavaEFoQXVWO2sTUBGYt7qDLRdrDgOGBIHylTXhTxf2wYzAF4ZmDROECT Qfc7Ac3aIWYvWDmxE+x8OniuclfZ0DndKLKQj6FJWUTIxFZzTxsHK75d47D1ID0S ZwAmUd0eYjjwMTO/6AM/Aqu3o8IP4GOXjJf4ijxH9+LjpUhm/ibmHDAUY69sU1WX kdX51gQzoEuW7XMVz1HoTSvaGGKtyFDuRxs8RG/tSFaRtznRz0Sro6BpLCeG968n k/d5WL/vZZ/NDA== =FYs/ -----END PGP SIGNATURE----- Merge tag 'riscv-for-linus-5.10-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V updates from Palmer Dabbelt: "A handful of cleanups and new features: - A handful of cleanups for our page fault handling - Improvements to how we fill out cacheinfo - Support for EFI-based systems" * tag 'riscv-for-linus-5.10-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (22 commits) RISC-V: Add page table dump support for uefi RISC-V: Add EFI runtime services RISC-V: Add EFI stub support. RISC-V: Add PE/COFF header for EFI stub RISC-V: Implement late mapping page table allocation functions RISC-V: Add early ioremap support RISC-V: Move DT mapping outof fixmap RISC-V: Fix duplicate included thread_info.h riscv/mm/fault: Set FAULT_FLAG_INSTRUCTION flag in do_page_fault() riscv/mm/fault: Fix inline placement in vmalloc_fault() declaration riscv: Add cache information in AUX vector riscv: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO riscv: Set more data to cacheinfo riscv/mm/fault: Move access error check to function riscv/mm/fault: Move FAULT_FLAG_WRITE handling in do_page_fault() riscv/mm/fault: Simplify mm_fault_error() riscv/mm/fault: Move fault error handling to mm_fault_error() riscv/mm/fault: Simplify fault error handling riscv/mm/fault: Move vmalloc fault handling to vmalloc_fault() riscv/mm/fault: Move bad area handling to bad_area() ...
124 lines
2.1 KiB
ArmAsm
124 lines
2.1 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2012 Regents of the University of California
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* Copyright (C) 2017 SiFive
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*/
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#define LOAD_OFFSET PAGE_OFFSET
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#include <asm/vmlinux.lds.h>
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#include <asm/page.h>
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#include <asm/cache.h>
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#include <asm/thread_info.h>
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#include <asm/set_memory.h>
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#include "image-vars.h"
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#include <linux/sizes.h>
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OUTPUT_ARCH(riscv)
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ENTRY(_start)
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jiffies = jiffies_64;
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PECOFF_SECTION_ALIGNMENT = 0x1000;
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PECOFF_FILE_ALIGNMENT = 0x200;
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SECTIONS
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{
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/* Beginning of code and text segment */
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. = LOAD_OFFSET;
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_start = .;
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HEAD_TEXT_SECTION
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. = ALIGN(PAGE_SIZE);
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__init_begin = .;
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INIT_TEXT_SECTION(PAGE_SIZE)
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. = ALIGN(8);
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__soc_early_init_table : {
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__soc_early_init_table_start = .;
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KEEP(*(__soc_early_init_table))
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__soc_early_init_table_end = .;
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}
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__soc_builtin_dtb_table : {
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__soc_builtin_dtb_table_start = .;
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KEEP(*(__soc_builtin_dtb_table))
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__soc_builtin_dtb_table_end = .;
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}
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/* we have to discard exit text and such at runtime, not link time */
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.exit.text :
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{
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EXIT_TEXT
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}
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.exit.data :
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{
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EXIT_DATA
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}
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PERCPU_SECTION(L1_CACHE_BYTES)
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__init_end = .;
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. = ALIGN(SECTION_ALIGN);
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.text : {
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_text = .;
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_stext = .;
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TEXT_TEXT
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SCHED_TEXT
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CPUIDLE_TEXT
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LOCK_TEXT
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KPROBES_TEXT
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ENTRY_TEXT
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IRQENTRY_TEXT
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SOFTIRQENTRY_TEXT
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*(.fixup)
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_etext = .;
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}
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#ifdef CONFIG_EFI
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. = ALIGN(PECOFF_SECTION_ALIGNMENT);
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__pecoff_text_end = .;
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#endif
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INIT_DATA_SECTION(16)
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/* Start of data section */
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_sdata = .;
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RO_DATA(SECTION_ALIGN)
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.srodata : {
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*(.srodata*)
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}
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EXCEPTION_TABLE(0x10)
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. = ALIGN(SECTION_ALIGN);
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_data = .;
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RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
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.sdata : {
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__global_pointer$ = . + 0x800;
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*(.sdata*)
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}
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#ifdef CONFIG_EFI
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.pecoff_edata_padding : { BYTE(0); . = ALIGN(PECOFF_FILE_ALIGNMENT); }
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__pecoff_data_raw_size = ABSOLUTE(. - __pecoff_text_end);
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#endif
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/* End of data section */
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_edata = .;
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BSS_SECTION(PAGE_SIZE, PAGE_SIZE, 0)
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.rel.dyn : {
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*(.rel.dyn*)
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}
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#ifdef CONFIG_EFI
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. = ALIGN(PECOFF_SECTION_ALIGNMENT);
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__pecoff_data_virt_size = ABSOLUTE(. - __pecoff_text_end);
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#endif
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_end = .;
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STABS_DEBUG
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DWARF_DEBUG
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ELF_DETAILS
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DISCARDS
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}
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