mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-24 00:40:51 +07:00
Hexagon: Add configuration and makefiles for the Hexagon architecture.
Signed-off-by: Linas Vepstas <linas@codeaurora.org> Signed-off-by: Richard Kuo <rkuo@codeaurora.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Richard Kuo
Linus Torvalds
parent
60e1323156
commit
e95bf452a9
220
arch/hexagon/Kconfig
Normal file
220
arch/hexagon/Kconfig
Normal file
@ -0,0 +1,220 @@
|
||||
# Hexagon configuration
|
||||
comment "Linux Kernel Configuration for Hexagon"
|
||||
|
||||
config HEXAGON
|
||||
def_bool y
|
||||
select HAVE_OPROFILE
|
||||
select USE_GENERIC_SMP_HELPERS if SMP
|
||||
# Other pending projects/to-do items.
|
||||
# select HAVE_REGS_AND_STACK_ACCESS_API
|
||||
# select HAVE_HW_BREAKPOINT if PERF_EVENTS
|
||||
# select ARCH_HAS_CPU_IDLE_WAIT
|
||||
# select ARCH_WANT_OPTIONAL_GPIOLIB
|
||||
# select ARCH_REQUIRE_GPIOLIB
|
||||
# select HAVE_CLK
|
||||
# select IRQ_PER_CPU
|
||||
select HAVE_IRQ_WORK
|
||||
# select GENERIC_PENDING_IRQ if SMP
|
||||
select GENERIC_ATOMIC64
|
||||
select HAVE_PERF_EVENTS
|
||||
select HAVE_GENERIC_HARDIRQS
|
||||
select GENERIC_HARDIRQS_NO__DO_IRQ
|
||||
select GENERIC_HARDIRQS_NO_DEPRECATED
|
||||
# GENERIC_ALLOCATOR is used by dma_alloc_coherent()
|
||||
select GENERIC_ALLOCATOR
|
||||
select GENERIC_IRQ_SHOW
|
||||
select HAVE_ARCH_KGDB
|
||||
select HAVE_ARCH_TRACEHOOK
|
||||
select NO_IOPORT
|
||||
# mostly generic routines, with some accelerated ones
|
||||
---help---
|
||||
Qualcomm Hexagon is a processor architecture designed for high
|
||||
performance and low power across a wide variety of applications.
|
||||
|
||||
config HEXAGON_ARCH_V1
|
||||
bool
|
||||
|
||||
config HEXAGON_ARCH_V2
|
||||
bool
|
||||
|
||||
config HEXAGON_ARCH_V3
|
||||
bool
|
||||
|
||||
config HEXAGON_ARCH_V4
|
||||
bool
|
||||
|
||||
config FRAME_POINTER
|
||||
def_bool y
|
||||
|
||||
config LOCKDEP_SUPPORT
|
||||
def_bool y
|
||||
|
||||
config PCI
|
||||
def_bool n
|
||||
|
||||
config EARLY_PRINTK
|
||||
def_bool y
|
||||
|
||||
config KTIME_SCALAR
|
||||
def_bool y
|
||||
|
||||
config MMU
|
||||
def_bool y
|
||||
|
||||
config TRACE_IRQFLAGS_SUPPORT
|
||||
def_bool y
|
||||
|
||||
config GENERIC_CSUM
|
||||
def_bool y
|
||||
|
||||
#
|
||||
# Use the generic interrupt handling code in kernel/irq/:
|
||||
#
|
||||
config GENERIC_IRQ_PROBE
|
||||
def_bool y
|
||||
|
||||
config GENERIC_IOMAP
|
||||
def_bool y
|
||||
|
||||
#config ZONE_DMA
|
||||
# bool
|
||||
# default y
|
||||
|
||||
config HAS_DMA
|
||||
bool
|
||||
select HAVE_DMA_ATTRS
|
||||
default y
|
||||
|
||||
config NEED_SG_DMA_LENGTH
|
||||
def_bool y
|
||||
|
||||
config RWSEM_GENERIC_SPINLOCK
|
||||
def_bool n
|
||||
|
||||
config RWSEM_XCHGADD_ALGORITHM
|
||||
def_bool y
|
||||
|
||||
config GENERIC_FIND_NEXT_BIT
|
||||
def_bool y
|
||||
|
||||
config GENERIC_HWEIGHT
|
||||
def_bool y
|
||||
|
||||
config GENERIC_TIME
|
||||
def_bool y
|
||||
|
||||
config GENERIC_CLOCKEVENTS
|
||||
def_bool y
|
||||
|
||||
config GENERIC_CLOCKEVENTS_BROADCAST
|
||||
def_bool y
|
||||
|
||||
config STACKTRACE_SUPPORT
|
||||
def_bool y
|
||||
select STACKTRACE
|
||||
|
||||
config GENERIC_BUG
|
||||
def_bool y
|
||||
depends on BUG
|
||||
|
||||
config BUG
|
||||
def_bool y
|
||||
|
||||
menu "Machine selection"
|
||||
|
||||
choice
|
||||
prompt "System type"
|
||||
default HEXAGON_ARCH_V2
|
||||
|
||||
config HEXAGON_COMET
|
||||
bool "Comet Board"
|
||||
select HEXAGON_ARCH_V2
|
||||
---help---
|
||||
Support for the Comet platform.
|
||||
|
||||
endchoice
|
||||
|
||||
config HEXAGON_VM
|
||||
def_bool y
|
||||
|
||||
config CMDLINE
|
||||
string "Default kernel command string"
|
||||
default ""
|
||||
help
|
||||
On some platforms, there is currently no way for the boot loader
|
||||
to pass arguments to the kernel. For these, you should supply some
|
||||
command-line options at build time by entering them here. At a
|
||||
minimum, you should specify the memory size and the root device
|
||||
(e.g., mem=64M root=/dev/nfs).
|
||||
|
||||
config HEXAGON_ANGEL_TRAPS
|
||||
bool "Use Angel Traps"
|
||||
default n
|
||||
---help---
|
||||
Enable angel debug traps (for printk's).
|
||||
|
||||
config SMP
|
||||
bool "Multi-Processing support"
|
||||
---help---
|
||||
Enables SMP support in the kernel. If unsure, say "Y"
|
||||
|
||||
config NR_CPUS
|
||||
int "Maximum number of CPUs" if SMP
|
||||
range 2 6 if SMP
|
||||
default "1" if !SMP
|
||||
default "6" if SMP
|
||||
---help---
|
||||
This allows you to specify the maximum number of CPUs which this
|
||||
kernel will support. The maximum supported value is 6 and the
|
||||
minimum value which makes sense is 2.
|
||||
|
||||
This is purely to save memory - each supported CPU adds
|
||||
approximately eight kilobytes to the kernel image.
|
||||
|
||||
choice
|
||||
prompt "Kernel page size"
|
||||
default PAGE_SIZE_4KB
|
||||
---help---
|
||||
Changes the default page size; use with caution.
|
||||
|
||||
config PAGE_SIZE_4KB
|
||||
bool "4KB"
|
||||
|
||||
config PAGE_SIZE_16KB
|
||||
bool "16KB"
|
||||
|
||||
config PAGE_SIZE_64KB
|
||||
bool "64KB"
|
||||
|
||||
config PAGE_SIZE_256KB
|
||||
bool "256KB"
|
||||
|
||||
endchoice
|
||||
|
||||
source "mm/Kconfig"
|
||||
|
||||
source "kernel/Kconfig.hz"
|
||||
source "kernel/time/Kconfig"
|
||||
|
||||
config GENERIC_GPIO
|
||||
bool "Generic GPIO support"
|
||||
default n
|
||||
|
||||
endmenu
|
||||
|
||||
source "init/Kconfig"
|
||||
source "drivers/Kconfig"
|
||||
source "fs/Kconfig"
|
||||
|
||||
menu "Executable File Formats"
|
||||
source "fs/Kconfig.binfmt"
|
||||
endmenu
|
||||
|
||||
source "net/Kconfig"
|
||||
source "security/Kconfig"
|
||||
source "crypto/Kconfig"
|
||||
source "lib/Kconfig"
|
||||
|
||||
menu "Kernel hacking"
|
||||
source "lib/Kconfig.debug"
|
||||
endmenu
|
||||
58
arch/hexagon/Makefile
Normal file
58
arch/hexagon/Makefile
Normal file
@ -0,0 +1,58 @@
|
||||
# Makefile for the Hexagon arch
|
||||
|
||||
KBUILD_DEFCONFIG = comet_defconfig
|
||||
|
||||
# Do not use GP-relative jumps
|
||||
KBUILD_CFLAGS += -G0
|
||||
LDFLAGS_vmlinux += -G0
|
||||
|
||||
# Do not use single-byte enums; these will overflow.
|
||||
KBUILD_CFLAGS += -fno-short-enums
|
||||
|
||||
# Modules must use either long-calls, or use pic/plt.
|
||||
# Use long-calls for now, it's easier. And faster.
|
||||
# CFLAGS_MODULE += -fPIC
|
||||
# LDFLAGS_MODULE += -shared
|
||||
CFLAGS_MODULE += -mlong-calls
|
||||
|
||||
cflags-$(CONFIG_HEXAGON_ARCH_V1) += $(call cc-option,-mv1)
|
||||
cflags-$(CONFIG_HEXAGON_ARCH_V2) += $(call cc-option,-mv2)
|
||||
cflags-$(CONFIG_HEXAGON_ARCH_V3) += $(call cc-option,-mv3)
|
||||
cflags-$(CONFIG_HEXAGON_ARCH_V4) += $(call cc-option,-mv4)
|
||||
|
||||
aflags-$(CONFIG_HEXAGON_ARCH_V1) += $(call cc-option,-mv1)
|
||||
aflags-$(CONFIG_HEXAGON_ARCH_V2) += $(call cc-option,-mv2)
|
||||
aflags-$(CONFIG_HEXAGON_ARCH_V3) += $(call cc-option,-mv3)
|
||||
aflags-$(CONFIG_HEXAGON_ARCH_V4) += $(call cc-option,-mv4)
|
||||
|
||||
ldflags-$(CONFIG_HEXAGON_ARCH_V1) += $(call cc-option,-mv1)
|
||||
ldflags-$(CONFIG_HEXAGON_ARCH_V2) += $(call cc-option,-mv2)
|
||||
ldflags-$(CONFIG_HEXAGON_ARCH_V3) += $(call cc-option,-mv3)
|
||||
ldflags-$(CONFIG_HEXAGON_ARCH_V4) += $(call cc-option,-mv4)
|
||||
|
||||
KBUILD_CFLAGS += $(cflags-y)
|
||||
KBUILD_AFLAGS += $(aflags-y)
|
||||
|
||||
# no KBUILD_LDFLAGS?
|
||||
LDFLAGS += $(ldflags-y)
|
||||
|
||||
# Thread-info register will be r19. This value is not configureable;
|
||||
# it is hard-coded in several files.
|
||||
TIR_NAME := r19
|
||||
KBUILD_CFLAGS += -ffixed-$(TIR_NAME) -DTHREADINFO_REG=$(TIR_NAME) -D__linux__
|
||||
KBUILD_AFLAGS += -DTHREADINFO_REG=$(TIR_NAME)
|
||||
|
||||
LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
|
||||
libs-y += $(LIBGCC)
|
||||
|
||||
head-y := arch/hexagon/kernel/head.o \
|
||||
arch/hexagon/kernel/init_task.o
|
||||
|
||||
core-y += arch/hexagon/kernel/ \
|
||||
arch/hexagon/mm/ \
|
||||
arch/hexagon/lib/
|
||||
|
||||
# arch/hexagon/platform/common/
|
||||
#
|
||||
#core-$(CONFIG_HEXAGON_COMET) += arch/hexagon/platform/comet/
|
||||
#machine-$(CONFIG_HEXAGON_COMET) := comet
|
||||
18
arch/hexagon/kernel/Makefile
Normal file
18
arch/hexagon/kernel/Makefile
Normal file
@ -0,0 +1,18 @@
|
||||
extra-y := head.o vmlinux.lds init_task.o
|
||||
|
||||
obj-$(CONFIG_SMP) += smp.o topology.o
|
||||
|
||||
obj-y += setup.o irq_cpu.o traps.o syscalltab.o signal.o time.o
|
||||
obj-y += process.o syscall.o trampoline.o reset.o ptrace.o
|
||||
obj-y += vdso.o
|
||||
|
||||
obj-$(CONFIG_KGDB) += kgdb.o
|
||||
obj-$(CONFIG_MODULES) += module.o hexagon_ksyms.o
|
||||
|
||||
# Modules required to work with the Hexagon Virtual Machine
|
||||
obj-y += vm_entry.o vm_events.o vm_switch.o vm_ops.o vm_init_segtable.o
|
||||
obj-y += vm_vectors.o
|
||||
|
||||
obj-$(CONFIG_HAS_DMA) += dma.o
|
||||
|
||||
obj-$(CONFIG_STACKTRACE) += stacktrace.o
|
||||
104
arch/hexagon/kernel/asm-offsets.c
Normal file
104
arch/hexagon/kernel/asm-offsets.c
Normal file
@ -0,0 +1,104 @@
|
||||
/*
|
||||
* Copyright (C) 1996 David S. Miller
|
||||
* Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003 Ralf Baechle
|
||||
* Copyright (C) 1999, 2000 Silicon Graphics, Inc.
|
||||
* Kevin Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
|
||||
* Copyright (C) 2000 MIPS Technologies, Inc.
|
||||
*
|
||||
* Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 and
|
||||
* only version 2 as published by the Free Software Foundation.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
||||
* 02110-1301, USA.
|
||||
*/
|
||||
|
||||
#include <linux/compat.h>
|
||||
#include <linux/types.h>
|
||||
#include <linux/sched.h>
|
||||
#include <linux/mm.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/kbuild.h>
|
||||
#include <asm/ptrace.h>
|
||||
#include <asm/processor.h>
|
||||
|
||||
/* This file is used to produce asm/linkerscript constants from header
|
||||
files typically used in c. Specifically, it generates asm-offsets.h */
|
||||
|
||||
int main(void)
|
||||
{
|
||||
COMMENT("This is a comment.");
|
||||
/* might get these from somewhere else. */
|
||||
DEFINE(_PAGE_SIZE, PAGE_SIZE);
|
||||
DEFINE(_PAGE_SHIFT, PAGE_SHIFT);
|
||||
BLANK();
|
||||
|
||||
COMMENT("Hexagon pt_regs definitions");
|
||||
OFFSET(_PT_SYSCALL_NR, pt_regs, syscall_nr);
|
||||
OFFSET(_PT_UGPGP, pt_regs, ugpgp);
|
||||
OFFSET(_PT_R3130, pt_regs, r3130);
|
||||
OFFSET(_PT_R2928, pt_regs, r2928);
|
||||
OFFSET(_PT_R2726, pt_regs, r2726);
|
||||
OFFSET(_PT_R2524, pt_regs, r2524);
|
||||
OFFSET(_PT_R2322, pt_regs, r2322);
|
||||
OFFSET(_PT_R2120, pt_regs, r2120);
|
||||
OFFSET(_PT_R1918, pt_regs, r1918);
|
||||
OFFSET(_PT_R1716, pt_regs, r1716);
|
||||
OFFSET(_PT_R1514, pt_regs, r1514);
|
||||
OFFSET(_PT_R1312, pt_regs, r1312);
|
||||
OFFSET(_PT_R1110, pt_regs, r1110);
|
||||
OFFSET(_PT_R0908, pt_regs, r0908);
|
||||
OFFSET(_PT_R0706, pt_regs, r0706);
|
||||
OFFSET(_PT_R0504, pt_regs, r0504);
|
||||
OFFSET(_PT_R0302, pt_regs, r0302);
|
||||
OFFSET(_PT_R0100, pt_regs, r0100);
|
||||
OFFSET(_PT_LC0SA0, pt_regs, lc0sa0);
|
||||
OFFSET(_PT_LC1SA1, pt_regs, lc1sa1);
|
||||
OFFSET(_PT_M1M0, pt_regs, m1m0);
|
||||
OFFSET(_PT_PREDSUSR, pt_regs, predsusr);
|
||||
OFFSET(_PT_EVREC, pt_regs, hvmer);
|
||||
OFFSET(_PT_ER_VMEL, pt_regs, hvmer.vmel);
|
||||
OFFSET(_PT_ER_VMEST, pt_regs, hvmer.vmest);
|
||||
OFFSET(_PT_ER_VMPSP, pt_regs, hvmer.vmpsp);
|
||||
OFFSET(_PT_ER_VMBADVA, pt_regs, hvmer.vmbadva);
|
||||
DEFINE(_PT_REGS_SIZE, sizeof(struct pt_regs));
|
||||
BLANK();
|
||||
|
||||
COMMENT("Hexagon thread_info definitions");
|
||||
OFFSET(_THREAD_INFO_FLAGS, thread_info, flags);
|
||||
OFFSET(_THREAD_INFO_PT_REGS, thread_info, regs);
|
||||
OFFSET(_THREAD_INFO_SP, thread_info, sp);
|
||||
DEFINE(_THREAD_SIZE, THREAD_SIZE);
|
||||
BLANK();
|
||||
|
||||
COMMENT("Hexagon hexagon_switch_stack definitions");
|
||||
OFFSET(_SWITCH_R1716, hexagon_switch_stack, r1716);
|
||||
OFFSET(_SWITCH_R1918, hexagon_switch_stack, r1918);
|
||||
OFFSET(_SWITCH_R2120, hexagon_switch_stack, r2120);
|
||||
OFFSET(_SWITCH_R2322, hexagon_switch_stack, r2322);
|
||||
|
||||
OFFSET(_SWITCH_R2524, hexagon_switch_stack, r2524);
|
||||
OFFSET(_SWITCH_R2726, hexagon_switch_stack, r2726);
|
||||
OFFSET(_SWITCH_FP, hexagon_switch_stack, fp);
|
||||
OFFSET(_SWITCH_LR, hexagon_switch_stack, lr);
|
||||
DEFINE(_SWITCH_STACK_SIZE, sizeof(struct hexagon_switch_stack));
|
||||
BLANK();
|
||||
|
||||
COMMENT("Hexagon task_struct definitions");
|
||||
OFFSET(_TASK_THREAD_INFO, task_struct, stack);
|
||||
OFFSET(_TASK_STRUCT_THREAD, task_struct, thread);
|
||||
|
||||
COMMENT("Hexagon thread_struct definitions");
|
||||
OFFSET(_THREAD_STRUCT_SWITCH_SP, thread_struct, switch_sp);
|
||||
|
||||
return 0;
|
||||
}
|
||||
88
arch/hexagon/kernel/vmlinux.lds.S
Normal file
88
arch/hexagon/kernel/vmlinux.lds.S
Normal file
@ -0,0 +1,88 @@
|
||||
/*
|
||||
* Linker script for Hexagon kernel
|
||||
*
|
||||
* Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 and
|
||||
* only version 2 as published by the Free Software Foundation.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
||||
* 02110-1301, USA.
|
||||
*/
|
||||
|
||||
#define LOAD_OFFSET PAGE_OFFSET
|
||||
|
||||
#include <asm-generic/vmlinux.lds.h>
|
||||
#include <asm/asm-offsets.h> /* Most of the kernel defines are here */
|
||||
#include <asm/mem-layout.h> /* except for page_offset */
|
||||
#include <asm/cache.h> /* and now we're pulling cache line size */
|
||||
OUTPUT_ARCH(hexagon)
|
||||
ENTRY(stext)
|
||||
|
||||
jiffies = jiffies_64;
|
||||
|
||||
/*
|
||||
See asm-generic/vmlinux.lds.h for expansion of some of these macros.
|
||||
See asm-generic/sections.h for seemingly required labels.
|
||||
*/
|
||||
|
||||
#define PAGE_SIZE _PAGE_SIZE
|
||||
|
||||
/* This LOAD_OFFSET is temporary for debugging on the simulator; it may change
|
||||
for hypervisor pseudo-physical memory. */
|
||||
|
||||
|
||||
SECTIONS
|
||||
{
|
||||
. = PAGE_OFFSET + LOAD_ADDRESS;
|
||||
|
||||
__init_begin = .;
|
||||
HEAD_TEXT_SECTION
|
||||
INIT_TEXT_SECTION(PAGE_SIZE)
|
||||
PERCPU_SECTION(L1_CACHE_BYTES)
|
||||
__init_end = .;
|
||||
|
||||
. = ALIGN(_PAGE_SIZE);
|
||||
_stext = .;
|
||||
.text : AT(ADDR(.text) - LOAD_OFFSET) {
|
||||
_text = .;
|
||||
TEXT_TEXT
|
||||
SCHED_TEXT
|
||||
LOCK_TEXT
|
||||
KPROBES_TEXT
|
||||
*(.fixup)
|
||||
}
|
||||
_etext = .;
|
||||
|
||||
INIT_DATA_SECTION(PAGE_SIZE)
|
||||
|
||||
_sdata = .;
|
||||
RW_DATA_SECTION(32,PAGE_SIZE,PAGE_SIZE)
|
||||
RO_DATA_SECTION(PAGE_SIZE)
|
||||
_edata = .;
|
||||
|
||||
EXCEPTION_TABLE(16)
|
||||
NOTES
|
||||
|
||||
BSS_SECTION(_PAGE_SIZE, _PAGE_SIZE, _PAGE_SIZE)
|
||||
|
||||
_end = .;
|
||||
|
||||
/DISCARD/ : {
|
||||
EXIT_TEXT
|
||||
EXIT_DATA
|
||||
EXIT_CALL
|
||||
}
|
||||
|
||||
STABS_DEBUG
|
||||
DWARF_DEBUG
|
||||
|
||||
}
|
||||
4
arch/hexagon/lib/Makefile
Normal file
4
arch/hexagon/lib/Makefile
Normal file
@ -0,0 +1,4 @@
|
||||
#
|
||||
# Makefile for hexagon-specific library files.
|
||||
#
|
||||
obj-y = checksum.o io.o memcpy.o memset.o
|
||||
6
arch/hexagon/mm/Makefile
Normal file
6
arch/hexagon/mm/Makefile
Normal file
@ -0,0 +1,6 @@
|
||||
#
|
||||
# Makefile for Hexagon memory management subsystem
|
||||
#
|
||||
|
||||
obj-y := init.o pgalloc.o ioremap.o uaccess.o vm_fault.o cache.o
|
||||
obj-y += copy_to_user.o copy_from_user.o strnlen_user.o vm_tlb.o
|
||||
Loading…
Reference in New Issue
Block a user