Commit bb9d8126 authored by Arnd Bergmann's avatar Arnd Bergmann

arch: remove tile port

The Tile architecture port was added by Chris Metcalf in 2010, and
maintained until early 2018 when he orphaned it due to his departure
from Mellanox, and nobody else stepped up to maintain it. The product
line is still around in the form of the BlueField SoC, but no longer
uses the Tile architecture.

There are also still products for sale with Tile-GX SoCs, notably the
Mikrotik CCR router family. The products all use old (linux-3.3) kernels
with lots of patches and won't be upgraded by their manufacturers. There
have been efforts to port both OpenWRT and Debian to these, but both
projects have stalled and are very unlikely to be continued in the future.

Given that we are reasonably sure that nobody is still using the port
with an upstream kernel any more, it seems better to remove it now while
the port is in a good shape than to let it bitrot for a few years first.

Cc: Chris Metcalf <chris.d.metcalf@gmail.com>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Link: http://www.mellanox.com/page/npu_multicore_overview
Link: https://jenkins.debian.net/view/rebootstrap/job/rebootstrap_tilegx_gcc7/Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parent 4ba66a97

Too many changes to show.

To preserve performance only 236 of 236+ files are displayed.

......@@ -305,7 +305,6 @@ Code Seq#(hex) Include File Comments
0xA0 all linux/sdp/sdp.h Industrial Device Project
<mailto:kenji@bitgate.com>
0xA1 0 linux/vtpm_proxy.h TPM Emulator Proxy Driver
0xA2 00-0F arch/tile/include/asm/hardwall.h
0xA3 80-8F Port ACL in development:
<mailto:tlewis@mindspring.com>
0xA3 90-9F linux/dtlk.h
......
......@@ -13840,19 +13840,6 @@ S: Orphan
F: drivers/net/wireless/ti/
F: include/linux/wl12xx.h
TILE ARCHITECTURE
W: http://www.mellanox.com/repository/solutions/tile-scm/
S: Orphan
F: arch/tile/
F: drivers/char/tile-srom.c
F: drivers/edac/tile_edac.c
F: drivers/net/ethernet/tile/
F: drivers/rtc/rtc-tile.c
F: drivers/tty/hvc/hvc_tile.c
F: drivers/tty/serial/tilegx.c
F: drivers/usb/host/*-tilegx.c
F: include/linux/usb/tilegx.h
TIMEKEEPING, CLOCKSOURCE CORE, NTP, ALARMTIMER
M: John Stultz <john.stultz@linaro.org>
M: Thomas Gleixner <tglx@linutronix.de>
......
......@@ -339,14 +339,6 @@ ifeq ($(ARCH),sh64)
SRCARCH := sh
endif
# Additional ARCH settings for tile
ifeq ($(ARCH),tilepro)
SRCARCH := tile
endif
ifeq ($(ARCH),tilegx)
SRCARCH := tile
endif
KCONFIG_CONFIG ?= .config
export KCONFIG_CONFIG
......
obj-y += kernel/
obj-y += mm/
# SPDX-License-Identifier: GPL-2.0
# For a description of the syntax of this configuration file,
# see Documentation/kbuild/kconfig-language.txt.
config TILE
def_bool y
select ARCH_HAS_DEVMEM_IS_ALLOWED
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select ARCH_WANT_FRAME_POINTERS
select CC_OPTIMIZE_FOR_SIZE
select EDAC_SUPPORT
select GENERIC_CLOCKEVENTS
select GENERIC_FIND_FIRST_BIT
select GENERIC_IRQ_PROBE
select GENERIC_IRQ_SHOW
select GENERIC_PENDING_IRQ if SMP
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
select HAVE_ARCH_SECCOMP_FILTER
select HAVE_ARCH_TRACEHOOK
select HAVE_CONTEXT_TRACKING
select HAVE_DEBUG_BUGVERBOSE
select HAVE_DEBUG_KMEMLEAK
select HAVE_DEBUG_STACKOVERFLOW
select HAVE_DMA_API_DEBUG
select HAVE_EXIT_THREAD
select HAVE_KVM if !TILEGX
select HAVE_NMI if USE_PMC
select HAVE_PERF_EVENTS
select HAVE_SYSCALL_TRACEPOINTS
select MODULES_USE_ELF_RELA
select SYSCTL_EXCEPTION_TRACE
select SYS_HYPERVISOR
select USER_STACKTRACE_SUPPORT
select USE_PMC if PERF_EVENTS
select VIRT_TO_BUS
config MMU
def_bool y
config GENERIC_CSUM
def_bool y
config HAVE_ARCH_ALLOC_REMAP
def_bool y
config HAVE_SETUP_PER_CPU_AREA
def_bool y
config NEED_PER_CPU_PAGE_FIRST_CHUNK
def_bool y
config SYS_SUPPORTS_HUGETLBFS
def_bool y
# Support for additional huge page sizes besides HPAGE_SIZE.
# The software support is currently only present in the TILE-Gx
# hypervisor. TILEPro in any case does not support page sizes
# larger than the default HPAGE_SIZE.
config HUGETLB_SUPER_PAGES
depends on HUGETLB_PAGE && TILEGX
def_bool y
config GENERIC_TIME_VSYSCALL
def_bool y
# Enable PMC if PERF_EVENTS, OPROFILE, or WATCHPOINTS are enabled.
config USE_PMC
bool
# FIXME: tilegx can implement a more efficient rwsem.
config RWSEM_GENERIC_SPINLOCK
def_bool y
# We only support gcc 4.4 and above, so this should work.
config ARCH_SUPPORTS_OPTIMIZED_INLINING
def_bool y
config ARCH_PHYS_ADDR_T_64BIT
def_bool y
config ARCH_DMA_ADDR_T_64BIT
def_bool y
config NEED_DMA_MAP_STATE
def_bool y
config ARCH_HAS_DMA_SET_COHERENT_MASK
bool
config LOCKDEP_SUPPORT
def_bool y
config STACKTRACE_SUPPORT
def_bool y
select STACKTRACE
# We use discontigmem for now; at some point we may want to switch
# to sparsemem (Tilera bug 7996).
config ARCH_DISCONTIGMEM_ENABLE
def_bool y
config ARCH_DISCONTIGMEM_DEFAULT
def_bool y
config TRACE_IRQFLAGS_SUPPORT
def_bool y
# SMP is required for Tilera Linux.
config SMP
def_bool y
config HVC_TILE
depends on TTY
select HVC_DRIVER
select HVC_IRQ if TILEGX
def_bool y
# Building with ARCH=tilegx (or ARCH=tile) implies using the
# 64-bit TILE-Gx toolchain, so force CONFIG_TILEGX on.
config TILEGX
def_bool ARCH != "tilepro"
select ARCH_SUPPORTS_ATOMIC_RMW
select GENERIC_IRQ_LEGACY_ALLOC_HWIRQ
select HAVE_ARCH_JUMP_LABEL
select HAVE_ARCH_KGDB
select HAVE_DYNAMIC_FTRACE
select HAVE_FTRACE_MCOUNT_RECORD
select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_FUNCTION_TRACER
select HAVE_KPROBES
select HAVE_KRETPROBES
select SPARSE_IRQ
config TILEPRO
def_bool !TILEGX
config 64BIT
def_bool TILEGX
config ARCH_DEFCONFIG
string
default "arch/tile/configs/tilepro_defconfig" if !TILEGX
default "arch/tile/configs/tilegx_defconfig" if TILEGX
config PGTABLE_LEVELS
int
default 3 if 64BIT
default 2
source "init/Kconfig"
source "kernel/Kconfig.freezer"
menu "Tilera-specific configuration"
config NR_CPUS
int "Maximum number of tiles (2-255)"
range 2 255
depends on SMP
default "64"
---help---
Building with 64 is the recommended value, but a slightly
smaller kernel memory footprint results from using a smaller
value on chips with fewer tiles.
choice
prompt "Kernel page size"
default PAGE_SIZE_64KB
help
This lets you select the page size of the kernel. For best
performance on memory-intensive applications, a page size of 64KB
is recommended. For workloads involving many small files, many
connections, etc., it may be better to select 16KB, which uses
memory more efficiently at some cost in TLB performance.
Note that for TILEPro, you must also rebuild the hypervisor
with a matching page size.
config PAGE_SIZE_4KB
bool "4KB" if TILEPRO
config PAGE_SIZE_16KB
bool "16KB"
config PAGE_SIZE_64KB
bool "64KB"
endchoice
source "kernel/Kconfig.hz"
config KEXEC
bool "kexec system call"
select KEXEC_CORE
---help---
kexec is a system call that implements the ability to shutdown your
current kernel, and to start another kernel. It is like a reboot
but it is independent of the system firmware. It is used
to implement the "mboot" Tilera booter.
The name comes from the similarity to the exec system call.
config COMPAT
bool "Support 32-bit TILE-Gx binaries in addition to 64-bit"
depends on TILEGX
select COMPAT_BINFMT_ELF
default y
---help---
If enabled, the kernel will support running TILE-Gx binaries
that were built with the -m32 option.
config SECCOMP
bool "Enable seccomp to safely compute untrusted bytecode"
depends on PROC_FS
help
This kernel feature is useful for number crunching applications
that may need to compute untrusted bytecode during their
execution. By using pipes or other transports made available to
the process as file descriptors supporting the read/write
syscalls, it's possible to isolate those applications in
their own address space using seccomp. Once seccomp is
enabled via prctl, it cannot be disabled and the task is only
allowed to execute a few safe syscalls defined by each seccomp
mode.
If unsure, say N.
config SYSVIPC_COMPAT
def_bool y
depends on COMPAT && SYSVIPC
# We do not currently support disabling HIGHMEM on tilepro.
config HIGHMEM
bool # "Support for more than 512 MB of RAM"
default !TILEGX
---help---
Linux can use the full amount of RAM in the system by
default. However, the address space of TILE processors is
only 4 Gigabytes large. That means that, if you have a large
amount of physical memory, not all of it can be "permanently
mapped" by the kernel. The physical memory that's not
permanently mapped is called "high memory".
If you are compiling a kernel which will never run on a
machine with more than 512 MB total physical RAM, answer
"false" here. This will result in the kernel mapping all of
physical memory into the top 1 GB of virtual memory space.
If unsure, say "true".
config ZONE_DMA32
def_bool y
config IOMMU_HELPER
bool
config NEED_SG_DMA_LENGTH
bool
config SWIOTLB
bool
default TILEGX
select DMA_DIRECT_OPS
select IOMMU_HELPER
select NEED_SG_DMA_LENGTH
select ARCH_HAS_DMA_SET_COHERENT_MASK
# We do not currently support disabling NUMA.
config NUMA
bool # "NUMA Memory Allocation and Scheduler Support"
depends on SMP && DISCONTIGMEM
default y
---help---
NUMA memory allocation is required for TILE processors
unless booting with memory striping enabled in the
hypervisor, or with only a single memory controller.
It is recommended that this option always be enabled.
config NODES_SHIFT
int "Log base 2 of the max number of memory controllers"
default 2
depends on NEED_MULTIPLE_NODES
---help---
By default, 2, i.e. 2^2 == 4 DDR2 controllers.
In a system with more controllers, this value should be raised.
choice
depends on !TILEGX
prompt "Memory split" if EXPERT
default VMSPLIT_3G
---help---
Select the desired split between kernel and user memory.
If the address range available to the kernel is less than the
physical memory installed, the remaining memory will be available
as "high memory". Accessing high memory is a little more costly
than low memory, as it needs to be mapped into the kernel first.
Note that increasing the kernel address space limits the range
available to user programs, making the address space there
tighter. Selecting anything other than the default 3G/1G split
will also likely make your kernel incompatible with binary-only
kernel modules.
If you are not absolutely sure what you are doing, leave this
option alone!
config VMSPLIT_3_75G
bool "3.75G/0.25G user/kernel split (no kernel networking)"
config VMSPLIT_3_5G
bool "3.5G/0.5G user/kernel split"
config VMSPLIT_3G
bool "3G/1G user/kernel split"
config VMSPLIT_2_75G
bool "2.75G/1.25G user/kernel split (for full 1G low memory)"
config VMSPLIT_2_5G
bool "2.5G/1.5G user/kernel split"
config VMSPLIT_2_25G
bool "2.25G/1.75G user/kernel split"
config VMSPLIT_2G
bool "2G/2G user/kernel split"
config VMSPLIT_1G
bool "1G/3G user/kernel split"
endchoice
config PAGE_OFFSET
hex
depends on !64BIT
default 0xF0000000 if VMSPLIT_3_75G
default 0xE0000000 if VMSPLIT_3_5G
default 0xB0000000 if VMSPLIT_2_75G
default 0xA0000000 if VMSPLIT_2_5G
default 0x90000000 if VMSPLIT_2_25G
default 0x80000000 if VMSPLIT_2G
default 0x40000000 if VMSPLIT_1G
default 0xC0000000
source "mm/Kconfig"
source "kernel/Kconfig.preempt"
config CMDLINE_BOOL
bool "Built-in kernel command line"
default n
---help---
Allow for specifying boot arguments to the kernel at
build time. On some systems (e.g. embedded ones), it is
necessary or convenient to provide some or all of the
kernel boot arguments with the kernel itself (that is,
to not rely on the boot loader to provide them.)
To compile command line arguments into the kernel,
set this option to 'Y', then fill in the
the boot arguments in CONFIG_CMDLINE.
Systems with fully functional boot loaders (e.g. mboot, or
if booting over PCI) should leave this option set to 'N'.
config CMDLINE
string "Built-in kernel command string"
depends on CMDLINE_BOOL
default ""
---help---
Enter arguments here that should be compiled into the kernel
image and used at boot time. If the boot loader provides a
command line at boot time, it is appended to this string to
form the full kernel command line, when the system boots.
However, you can use the CONFIG_CMDLINE_OVERRIDE option to
change this behavior.
In most cases, the command line (whether built-in or provided
by the boot loader) should specify the device for the root
file system.
config CMDLINE_OVERRIDE
bool "Built-in command line overrides boot loader arguments"
default n
depends on CMDLINE_BOOL
---help---
Set this option to 'Y' to have the kernel ignore the boot loader
command line, and use ONLY the built-in command line.
This is used to work around broken boot loaders. This should
be set to 'N' under normal conditions.
config VMALLOC_RESERVE
hex
default 0x2000000
config HARDWALL
bool "Hardwall support to allow access to user dynamic network"
default y
config KERNEL_PL
int "Processor protection level for kernel"
range 1 2
default 2 if TILEGX
default 1 if !TILEGX
---help---
Since MDE 4.2, the Tilera hypervisor runs the kernel
at PL2 by default. If running under an older hypervisor,
or as a KVM guest, you must run at PL1. (The current
hypervisor may also be recompiled with "make HV_PL=2" to
allow it to run a kernel at PL1, but clients running at PL1
are not expected to be supported indefinitely.)
If you're not sure, don't change the default.
source "arch/tile/gxio/Kconfig"
endmenu # Tilera-specific configuration
menu "Bus options"
config PCI
bool "PCI support"
default y
select PCI_DOMAINS
select GENERIC_PCI_IOMAP
select TILE_GXIO_TRIO if TILEGX
select PCI_MSI if TILEGX
---help---
Enable PCI root complex support, so PCIe endpoint devices can
be attached to the Tile chip. Many, but not all, PCI devices
are supported under Tilera's root complex driver.
config PCI_DOMAINS
bool
config NO_IOMEM
def_bool !PCI
config NO_IOPORT_MAP
def_bool !PCI
config TILE_PCI_IO
bool "PCI I/O space support"
default n
depends on PCI
depends on TILEGX
---help---
Enable PCI I/O space support on TILEGx. Since the PCI I/O space
is used by few modern PCIe endpoint devices, its support is disabled
by default to save the TRIO PIO Region resource for other purposes.
source "drivers/pci/Kconfig"
config TILE_USB
tristate "Tilera USB host adapter support"
default y
depends on USB
depends on TILEGX
select TILE_GXIO_USB_HOST
---help---
Provides USB host adapter support for the built-in EHCI and OHCI
interfaces on TILE-Gx chips.
endmenu
menu "Executable file formats"
source "fs/Kconfig.binfmt"
endmenu
source "net/Kconfig"
source "drivers/Kconfig"
source "fs/Kconfig"
source "arch/tile/Kconfig.debug"
source "security/Kconfig"
source "crypto/Kconfig"
source "lib/Kconfig"
source "arch/tile/kvm/Kconfig"
# SPDX-License-Identifier: GPL-2.0
menu "Kernel hacking"
source "lib/Kconfig.debug"
config EARLY_PRINTK
bool "Early printk" if EXPERT && DEBUG_KERNEL
default y
help
Write kernel log output directly via the hypervisor console.
This is useful for kernel debugging when your machine crashes very
early before the console code is initialized. For normal operation
it is not recommended because it looks ugly and doesn't cooperate
with klogd/syslogd. You should normally N here,
unless you want to debug such a crash.
config TILE_HVGLUE_TRACE
bool "Provide wrapper functions for hypervisor ABI calls"
default n
help
Provide wrapper functions for the hypervisor ABI calls
defined in arch/tile/kernel/hvglue.S. This allows tracing
mechanisms, etc., to have visibility into those calls.
endmenu
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies. Remember to do have actions
# for "archclean" and "archdep" for cleaning up and making dependencies for
# this architecture
# If building with TILERA_ROOT set (i.e. using the Tilera Multicore
# Development Environment) we can set CROSS_COMPILE based on that.
# If we're not cross-compiling, make sure we're on the right architecture.
# Only bother to test for a few common targets, to avoid useless errors.
ifeq ($(CROSS_COMPILE),)
ifdef TILERA_ROOT
CROSS_COMPILE := $(TILERA_ROOT)/bin/tile-
else
goals := $(if $(MAKECMDGOALS), $(MAKECMDGOALS), all)
ifneq ($(strip $(filter vmlinux modules all,$(goals))),)
HOST_ARCH := $(shell uname -m)
ifneq ($(HOST_ARCH),$(ARCH))
$(error Set TILERA_ROOT or CROSS_COMPILE when building $(ARCH) on $(HOST_ARCH))
endif
endif
endif
endif
# The tile compiler may emit .eh_frame information for backtracing.
# In kernel modules, this causes load failures due to unsupported relocations.
KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
LIBGCC_PATH := \
$(shell $(CC) $(KBUILD_CFLAGS) $(KCFLAGS) -print-libgcc-file-name)
# Provide the path to use for "make defconfig".
# We default to the newer TILE-Gx architecture if only "tile" is given.
ifeq ($(ARCH),tile)
KBUILD_DEFCONFIG := tilegx_defconfig
else
KBUILD_DEFCONFIG := $(ARCH)_defconfig
endif
# Used as a file extension when useful, e.g. head_$(BITS).o
# Not needed for (e.g.) "$(CC) -m32" since the compiler automatically
# uses the right default anyway.
export BITS
ifeq ($(CONFIG_TILEGX),y)
BITS := 64
else
BITS := 32
endif
CHECKFLAGS += -m$(BITS)
head-y := arch/tile/kernel/head_$(BITS).o
libs-y += arch/tile/lib/
libs-y += $(LIBGCC_PATH)
# See arch/tile/Kbuild for content of core part of the kernel
core-y += arch/tile/
core-$(CONFIG_TILE_GXIO) += arch/tile/gxio/
ifdef TILERA_ROOT
INSTALL_PATH ?= $(TILERA_ROOT)/tile/boot
endif
install:
install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE)
install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE)
install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE)
define archhelp
echo ' install - install kernel into $(INSTALL_PATH)'
endef
CONFIG_TILEGX=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_FHANDLE=y
CONFIG_AUDIT=y
CONFIG_NO_HZ=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
CONFIG_LOG_BUF_SHIFT=19
CONFIG_CGROUPS=y
CONFIG_CGROUP_DEBUG=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CPUSETS=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_CGROUP_SCHED=y
CONFIG_RT_GROUP_SCHED=y
CONFIG_BLK_CGROUP=y
CONFIG_NAMESPACES=y
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_RD_XZ=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_EMBEDDED=y
# CONFIG_COMPAT_BRK is not set