metag: Remove arch/metag/

The earliest Meta architecture port of Linux I have a record of was an
import of a Meta port of Linux v2.4.1 in February 2004, which was worked
on significantly over the next few years by Graham Whaley, Will Newton,
Matt Fleming, myself and others.

Eventually the port was merged into mainline in v3.9 in March 2013, not
long after Imagination Technologies bought MIPS Technologies and shifted
its CPU focus over to the MIPS architecture.

As a result, though the port was maintained for a while, kept on life
support for a while longer, and useful for testing a few specific
drivers for which I don't have ready access to the equivalent MIPS
hardware, it is now essentially dead with no users.

It is also stuck using an out-of-tree toolchain based on GCC 4.2.4 which
is no longer maintained, now struggles to build modern kernels due to
toolchain bugs, and doesn't itself build with a modern GCC. The latest
buildroot port is still using an old uClibc snapshot which is no longer
served, and the latest uClibc doesn't build with GCC 4.2.4.

So lets call it a day and drop the Meta architecture port from the
kernel. RIP Meta.

Signed-off-by: James Hogan <jhogan@kernel.org>
Link: https://lkml.kernel.org/r/95906b76-6ce1-3f84-eaba-c29b4ae952eb@roeck-us.net
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Graham Whaley <graham.whaley@gmail.com>
Cc: linux-metag@vger.kernel.org

1 files changed, 0 insertions, 147 deletions

diff --git a/arch/metag/mm/Kconfig b/arch/metag/mm/Kconfig
deleted file mode 100644
index 9d4b2c6..0000000
--- a/arch/metag/mm/Kconfig
+++ /dev/null
@@ -1,147 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0
-menu "Memory management options"
-
-config PAGE_OFFSET
-	hex "Kernel page offset address"
-	default "0x40000000"
-	help
-	  This option allows you to set the virtual address at which the
-	  kernel will be mapped to.
-endmenu
-
-config KERNEL_4M_PAGES
-	bool "Map kernel with 4MB pages"
-	depends on METAG_META21_MMU
-	default y
-	help
-	  Map the kernel with large pages to reduce TLB pressure.
-
-choice
-	prompt "User page size"
-	default PAGE_SIZE_4K
-
-config PAGE_SIZE_4K
-	bool "4kB"
-	help
-	  This is the default page size used by all Meta cores.
-
-config PAGE_SIZE_8K
-	bool "8kB"
-	depends on METAG_META21_MMU
-	help
-	  This enables 8kB pages as supported by Meta 2.x and later MMUs.
-
-config PAGE_SIZE_16K
-	bool "16kB"
-	depends on METAG_META21_MMU
-	help
-	  This enables 16kB pages as supported by Meta 2.x and later MMUs.
-
-endchoice
-
-config NUMA
-	bool "Non Uniform Memory Access (NUMA) Support"
-	select ARCH_WANT_NUMA_VARIABLE_LOCALITY
-	help
-	  Some Meta systems have MMU-mappable on-chip memories with
-	  lower latencies than main memory. This enables support for
-	  these blocks by binding them to nodes and allowing
-	  memory policies to be used for prioritizing and controlling
-	  allocation behaviour.
-
-config FORCE_MAX_ZONEORDER
-	int "Maximum zone order"
-	range 10 32
-	default "10"
-	help
-	  The kernel memory allocator divides physically contiguous memory
-	  blocks into "zones", where each zone is a power of two number of
-	  pages.  This option selects the largest power of two that the kernel
-	  keeps in the memory allocator.  If you need to allocate very large
-	  blocks of physically contiguous memory, then you may need to
-	  increase this value.
-
-	  This config option is actually maximum order plus one. For example,
-	  a value of 11 means that the largest free memory block is 2^10 pages.
-
-	  The page size is not necessarily 4KB.  Keep this in mind
-	  when choosing a value for this option.
-
-config METAG_L2C
-	bool "Level 2 Cache Support"
-	depends on METAG_META21
-	help
-	  Press y here to enable support for the Meta Level 2 (L2) cache. This
-	  will enable the cache at start up if it hasn't already been enabled
-	  by the bootloader.
-
-	  If the bootloader enables the L2 you must press y here to ensure the
-	  kernel takes the appropriate actions to keep the cache coherent.
-
-config NODES_SHIFT
-	int
-	default "1"
-	depends on NEED_MULTIPLE_NODES
-
-config ARCH_FLATMEM_ENABLE
-	def_bool y
-	depends on !NUMA
-
-config ARCH_SPARSEMEM_ENABLE
-	def_bool y
-	select SPARSEMEM_STATIC
-
-config ARCH_SPARSEMEM_DEFAULT
-	def_bool y
-
-config ARCH_SELECT_MEMORY_MODEL
-	def_bool y
-
-config SYS_SUPPORTS_HUGETLBFS
-	def_bool y
-	depends on METAG_META21_MMU
-
-choice
-	prompt "HugeTLB page size"
-	depends on METAG_META21_MMU && HUGETLB_PAGE
-	default HUGETLB_PAGE_SIZE_1M
-
-config HUGETLB_PAGE_SIZE_8K
-	bool "8kB"
-	depends on PAGE_SIZE_4K
-
-config HUGETLB_PAGE_SIZE_16K
-	bool "16kB"
-	depends on PAGE_SIZE_4K || PAGE_SIZE_8K
-
-config HUGETLB_PAGE_SIZE_32K
-	bool "32kB"
-
-config HUGETLB_PAGE_SIZE_64K
-	bool "64kB"
-
-config HUGETLB_PAGE_SIZE_128K
-	bool "128kB"
-
-config HUGETLB_PAGE_SIZE_256K
-	bool "256kB"
-
-config HUGETLB_PAGE_SIZE_512K
-	bool "512kB"
-
-config HUGETLB_PAGE_SIZE_1M
-	bool "1MB"
-
-config HUGETLB_PAGE_SIZE_2M
-	bool "2MB"
-
-config HUGETLB_PAGE_SIZE_4M
-	bool "4MB"
-
-endchoice
-
-config METAG_COREMEM
-	bool
-	default y if SUSPEND
-
-source "mm/Kconfig"