diff options
| author | James Hogan <jhogan@kernel.org> | 2017-10-24 13:07:54 +0100 |
|---|---|---|
| committer | James Hogan <jhogan@kernel.org> | 2018-02-22 11:07:21 +0000 |
| commit | bb6fb6dfcc17cddac11ac295861f7608194447a7 (patch) | |
| tree | 47ee071a415546dd01adbf628f61acb80473d476 /arch/metag/lib/muldi3.S | |
| parent | 91ab883eb21325ad80f3473633f794c78ac87f51 (diff) | |
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is no longer maintained, now struggles to build modern kernels due to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
Diffstat (limited to 'arch/metag/lib/muldi3.S')
| -rw-r--r-- | arch/metag/lib/muldi3.S | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/arch/metag/lib/muldi3.S b/arch/metag/lib/muldi3.S deleted file mode 100644 index 9d106790244d..000000000000 --- a/arch/metag/lib/muldi3.S +++ /dev/null @@ -1,45 +0,0 @@ -! SPDX-License-Identifier: GPL-2.0 -! Copyright (C) 2012 by Imagination Technologies Ltd. -! -! 64-bit multiply routine. -! - -! -! 64-bit signed/unsigned multiply -! -! A = D1Ar1:D0Ar2 = a 2^48 + b 2^32 + c 2^16 + d 2^0 -! -! B = D1Ar3:D0Ar4 = w 2^48 + x 2^32 + y 2^16 + z 2^0 -! - .text - .global ___muldi3 - .type ___muldi3,function - -___muldi3: - MULD D1Re0,D1Ar1,D0Ar4 ! (a 2^48 + b 2^32)(y 2^16 + z 2^0) - MULD D0Re0,D0Ar2,D1Ar3 ! (w 2^48 + x 2^32)(c 2^16 + d 2^0) - ADD D1Re0,D1Re0,D0Re0 - - MULW D0Re0,D0Ar2,D0Ar4 ! (d 2^0) * (z 2^0) - - RTDW D0Ar2,D0Ar2 - MULW D0Ar6,D0Ar2,D0Ar4 ! (c 2^16)(z 2^0) - LSR D1Ar5,D0Ar6,#16 - LSL D0Ar6,D0Ar6,#16 - ADDS D0Re0,D0Re0,D0Ar6 - ADDCS D1Re0,D1Re0,#1 - RTDW D0Ar4,D0Ar4 - ADD D1Re0,D1Re0,D1Ar5 - - MULW D0Ar6,D0Ar2,D0Ar4 ! (c 2^16)(y 2^16) - ADD D1Re0,D1Re0,D0Ar6 - - RTDW D0Ar2,D0Ar2 - MULW D0Ar6,D0Ar2,D0Ar4 ! (d 2^0)(y 2^16) - LSR D1Ar5,D0Ar6,#16 - LSL D0Ar6,D0Ar6,#16 - ADDS D0Re0,D0Re0,D0Ar6 - ADD D1Re0,D1Re0,D1Ar5 - ADDCS D1Re0,D1Re0,#1 - MOV PC, D1RtP - .size ___muldi3,.-___muldi3 |