Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0-or-later */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * OpenRISC Linux
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Linux architectural port borrowing liberally from similar works of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  * others.  All original copyrights apply as per the original source
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * declaration.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  * OpenRISC implementation:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)  * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)  * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)  * et al.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #ifndef __ASM_OPENRISC_ELF_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #define __ASM_OPENRISC_ELF_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <uapi/asm/elf.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)  * This is used to ensure we don't load something for the wrong architecture.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define elf_check_arch(x) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	(((x)->e_machine == EM_OR32) || ((x)->e_machine == EM_OPENRISC))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) /* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)    use of this is to invoke "./ld.so someprog" to test out a new version of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)    the loader.  We need to make sure that it is out of the way of the program
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)    that it will "exec", and that there is sufficient room for the brk.  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define ELF_ET_DYN_BASE         (0x08000000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)  * Enable dump using regset.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)  * This covers all of general/DSP/FPU regs.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define CORE_DUMP_USE_REGSET
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #define ELF_EXEC_PAGESIZE	8192
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) extern void dump_elf_thread(elf_greg_t *dest, struct pt_regs *pt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define ELF_CORE_COPY_REGS(dest, regs) dump_elf_thread(dest, regs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) /* This yields a mask that user programs can use to figure out what
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)    instruction set this cpu supports.  This could be done in userspace,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)    but it's not easy, and we've already done it here.  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #define ELF_HWCAP	(0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) /* This yields a string that ld.so will use to load implementation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)    specific libraries for optimization.  This is more specific in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)    intent than poking at uname or /proc/cpuinfo.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)    For the moment, we have only optimizations for the Intel generations,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)    but that could change... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) #define ELF_PLATFORM	(NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) #endif