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: Arnd Bergmann <arnd@arndb.de>

1 files changed, 0 insertions, 57 deletions

diff --git a/arch/tile/include/asm/setup.h b/arch/tile/include/asm/setup.h
deleted file mode 100644
index 2a0347af0702..000000000000
--- a/arch/tile/include/asm/setup.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * Copyright 2010 Tilera Corporation. 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
- *   as published by the Free Software Foundation, version 2.
- *
- *   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, GOOD TITLE or
- *   NON INFRINGEMENT.  See the GNU General Public License for
- *   more details.
- */
-#ifndef _ASM_TILE_SETUP_H
-#define _ASM_TILE_SETUP_H
-
-
-#include <linux/pfn.h>
-#include <linux/init.h>
-#include <uapi/asm/setup.h>
-
-/*
- * Reserved space for vmalloc and iomap - defined in asm/page.h
- */
-#define MAXMEM_PFN	PFN_DOWN(MAXMEM)
-
-int tile_console_write(const char *buf, int count);
-
-#ifdef CONFIG_EARLY_PRINTK
-void early_panic(const char *fmt, ...);
-#else
-#define early_panic panic
-#endif
-
-/* Init-time routine to do tile-specific per-cpu setup. */
-void setup_cpu(int boot);
-
-/* User-level DMA management functions */
-void grant_dma_mpls(void);
-void restrict_dma_mpls(void);
-
-#ifdef CONFIG_HARDWALL
-/* User-level network management functions */
-void reset_network_state(void);
-struct task_struct;
-void hardwall_switch_tasks(struct task_struct *prev, struct task_struct *next);
-void hardwall_deactivate_all(struct task_struct *task);
-int hardwall_ipi_valid(int cpu);
-
-/* Hook hardwall code into changes in affinity. */
-#define arch_set_cpus_allowed(p, new_mask) do { \
-	if (!cpumask_equal(&p->cpus_allowed, new_mask)) \
-		hardwall_deactivate_all(p); \
-} while (0)
-#endif
-
-#endif /* _ASM_TILE_SETUP_H */