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51db13aa8d
Type tag the remaining per-processor assembly using the CFI symbol macros, in addition to those that were previously tagged for cache maintenance calls. This will be used to finally provide proper C prototypes for all these calls as well so that CFI can be made to work. Tested-by: Kees Cook <keescook@chromium.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Sami Tolvanen <samitolvanen@google.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
123 lines
3.3 KiB
ArmAsm
123 lines
3.3 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* linux/arch/arm/mm/proc-arm7tdmi.S: utility functions for ARM7TDMI
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*
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* Copyright (C) 2003-2006 Hyok S. Choi <hyok.choi@samsung.com>
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*/
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#include <linux/linkage.h>
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#include <linux/init.h>
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#include <linux/cfi_types.h>
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#include <linux/pgtable.h>
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#include <asm/assembler.h>
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#include <asm/asm-offsets.h>
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#include <asm/hwcap.h>
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#include <asm/pgtable-hwdef.h>
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#include <asm/ptrace.h>
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#include "proc-macros.S"
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.text
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/*
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* cpu_arm7tdmi_proc_init()
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* cpu_arm7tdmi_do_idle()
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* cpu_arm7tdmi_dcache_clean_area()
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* cpu_arm7tdmi_switch_mm()
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*
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* These are not required.
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*/
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SYM_TYPED_FUNC_START(cpu_arm7tdmi_proc_init)
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ret lr
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SYM_FUNC_END(cpu_arm7tdmi_proc_init)
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SYM_TYPED_FUNC_START(cpu_arm7tdmi_do_idle)
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ret lr
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SYM_FUNC_END(cpu_arm7tdmi_do_idle)
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SYM_TYPED_FUNC_START(cpu_arm7tdmi_dcache_clean_area)
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ret lr
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SYM_FUNC_END(cpu_arm7tdmi_dcache_clean_area)
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SYM_TYPED_FUNC_START(cpu_arm7tdmi_switch_mm)
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ret lr
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SYM_FUNC_END(cpu_arm7tdmi_switch_mm)
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/*
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* cpu_arm7tdmi_proc_fin()
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*/
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SYM_TYPED_FUNC_START(cpu_arm7tdmi_proc_fin)
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ret lr
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SYM_FUNC_END(cpu_arm7tdmi_proc_fin)
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/*
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* Function: cpu_arm7tdmi_reset(loc)
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* Params : loc(r0) address to jump to
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* Purpose : Sets up everything for a reset and jump to the location for soft reset.
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*/
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.pushsection .idmap.text, "ax"
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SYM_TYPED_FUNC_START(cpu_arm7tdmi_reset)
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ret r0
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SYM_FUNC_END(cpu_arm7tdmi_reset)
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.popsection
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.type __arm7tdmi_setup, #function
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__arm7tdmi_setup:
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ret lr
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.size __arm7tdmi_setup, . - __arm7tdmi_setup
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__INITDATA
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@ define struct processor (see <asm/proc-fns.h> and proc-macros.S)
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define_processor_functions arm7tdmi, dabort=v4t_late_abort, pabort=legacy_pabort, nommu=1
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.section ".rodata"
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string cpu_arch_name, "armv4t"
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string cpu_elf_name, "v4"
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string cpu_arm7tdmi_name, "ARM7TDMI"
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string cpu_triscenda7_name, "Triscend-A7x"
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string cpu_at91_name, "Atmel-AT91M40xxx"
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string cpu_s3c3410_name, "Samsung-S3C3410"
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string cpu_s3c44b0x_name, "Samsung-S3C44B0x"
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string cpu_s3c4510b_name, "Samsung-S3C4510B"
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string cpu_s3c4530_name, "Samsung-S3C4530"
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string cpu_netarm_name, "NETARM"
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.align
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.section ".proc.info.init", "a"
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.macro arm7tdmi_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req, \
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extra_hwcaps=0
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.type __\name\()_proc_info, #object
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__\name\()_proc_info:
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.long \cpu_val
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.long \cpu_mask
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.long 0
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.long 0
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initfn __arm7tdmi_setup, __\name\()_proc_info
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.long cpu_arch_name
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.long cpu_elf_name
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.long HWCAP_SWP | HWCAP_26BIT | ( \extra_hwcaps )
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.long \cpu_name
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.long arm7tdmi_processor_functions
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.long 0
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.long 0
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.long v4_cache_fns
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.size __\name\()_proc_info, . - __\name\()_proc_info
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.endm
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arm7tdmi_proc_info arm7tdmi, 0x41007700, 0xfff8ff00, \
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cpu_arm7tdmi_name
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arm7tdmi_proc_info triscenda7, 0x0001d2ff, 0x0001ffff, \
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cpu_triscenda7_name, extra_hwcaps=HWCAP_THUMB
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arm7tdmi_proc_info at91, 0x14000040, 0xfff000e0, \
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cpu_at91_name, extra_hwcaps=HWCAP_THUMB
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arm7tdmi_proc_info s3c4510b, 0x36365000, 0xfffff000, \
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cpu_s3c4510b_name, extra_hwcaps=HWCAP_THUMB
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arm7tdmi_proc_info s3c4530, 0x4c000000, 0xfff000e0, \
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cpu_s3c4530_name, extra_hwcaps=HWCAP_THUMB
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arm7tdmi_proc_info s3c3410, 0x34100000, 0xffff0000, \
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cpu_s3c3410_name, extra_hwcaps=HWCAP_THUMB
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arm7tdmi_proc_info s3c44b0x, 0x44b00000, 0xffff0000, \
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cpu_s3c44b0x_name, extra_hwcaps=HWCAP_THUMB
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