cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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proc-arm9tdmi.S (2194B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/*
      3 *  linux/arch/arm/mm/proc-arm9tdmi.S: utility functions for ARM9TDMI
      4 *
      5 *  Copyright (C) 2003-2006 Hyok S. Choi <hyok.choi@samsung.com>
      6 */
      7#include <linux/linkage.h>
      8#include <linux/init.h>
      9#include <linux/pgtable.h>
     10#include <asm/assembler.h>
     11#include <asm/asm-offsets.h>
     12#include <asm/hwcap.h>
     13#include <asm/pgtable-hwdef.h>
     14#include <asm/ptrace.h>
     15
     16#include "proc-macros.S"
     17
     18	.text
     19/*
     20 * cpu_arm9tdmi_proc_init()
     21 * cpu_arm9tdmi_do_idle()
     22 * cpu_arm9tdmi_dcache_clean_area()
     23 * cpu_arm9tdmi_switch_mm()
     24 *
     25 * These are not required.
     26 */
     27ENTRY(cpu_arm9tdmi_proc_init)
     28ENTRY(cpu_arm9tdmi_do_idle)
     29ENTRY(cpu_arm9tdmi_dcache_clean_area)
     30ENTRY(cpu_arm9tdmi_switch_mm)
     31		ret	lr
     32
     33/*
     34 * cpu_arm9tdmi_proc_fin()
     35 */
     36ENTRY(cpu_arm9tdmi_proc_fin)
     37		ret	lr
     38
     39/*
     40 * Function: cpu_arm9tdmi_reset(loc)
     41 * Params  : loc(r0)	address to jump to
     42 * Purpose : Sets up everything for a reset and jump to the location for soft reset.
     43 */
     44		.pushsection	.idmap.text, "ax"
     45ENTRY(cpu_arm9tdmi_reset)
     46		ret	r0
     47ENDPROC(cpu_arm9tdmi_reset)
     48		.popsection
     49
     50		.type	__arm9tdmi_setup, #function
     51__arm9tdmi_setup:
     52		ret	lr
     53		.size	__arm9tdmi_setup, . - __arm9tdmi_setup
     54
     55		__INITDATA
     56
     57		@ define struct processor (see <asm/proc-fns.h> and proc-macros.S)
     58		define_processor_functions arm9tdmi, dabort=nommu_early_abort, pabort=legacy_pabort, nommu=1
     59
     60		.section ".rodata"
     61
     62		string	cpu_arch_name, "armv4t"
     63		string	cpu_elf_name, "v4"
     64		string	cpu_arm9tdmi_name, "ARM9TDMI"
     65		string	cpu_p2001_name, "P2001"
     66
     67		.align
     68
     69		.section ".proc.info.init", "a"
     70
     71.macro arm9tdmi_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req
     72		.type	__\name\()_proc_info, #object
     73__\name\()_proc_info:
     74		.long	\cpu_val
     75		.long	\cpu_mask
     76		.long	0
     77		.long	0
     78		initfn	__arm9tdmi_setup, __\name\()_proc_info
     79		.long	cpu_arch_name
     80		.long	cpu_elf_name
     81		.long	HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
     82		.long	\cpu_name
     83		.long	arm9tdmi_processor_functions
     84		.long	0
     85		.long	0
     86		.long	v4_cache_fns
     87		.size	__\name\()_proc_info, . - __\name\()_proc_info
     88.endm
     89
     90	arm9tdmi_proc_info arm9tdmi, 0x41009900, 0xfff8ff00, cpu_arm9tdmi_name
     91	arm9tdmi_proc_info p2001, 0x41029000, 0xffffffff, cpu_p2001_name