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is no longer maintained, now struggles to build modern kernels due to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, 32 deletions

diff --git a/arch/metag/include/uapi/asm/sigcontext.h b/arch/metag/include/uapi/asm/sigcontext.h
deleted file mode 100644
index ac7e1f2..0000000
--- a/arch/metag/include/uapi/asm/sigcontext.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef _ASM_METAG_SIGCONTEXT_H
-#define _ASM_METAG_SIGCONTEXT_H
-
-#include <asm/ptrace.h>
-
-/*
- * In a sigcontext structure we need to store the active state of the
- * user process so that it does not get trashed when we call the signal
- * handler. That not really the same as a user context that we are
- * going to store on syscall etc.
- */
-struct sigcontext {
-	struct user_gp_regs regs;	/* needs to be first */
-
-	/*
-	 * Catch registers describing a memory fault.
-	 * If USER_GP_REGS_STATUS_CATCH_BIT is set in regs.status then catch
-	 * buffers have been saved and will be replayed on sigreturn.
-	 * Clear that bit to discard the catch state instead of replaying it.
-	 */
-	struct user_cb_regs cb;
-
-	/*
-	 * Read pipeline state. This will get restored on sigreturn.
-	 */
-	struct user_rp_state rp;
-
-	unsigned long oldmask;
-};
-
-#endif