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| author |   Jesper Nilsson <jesper@jni.nu> | 2018-03-11 11:05:23 +0100 |
|---|---|---|
| committer |   Arnd Bergmann <arnd@arndb.de> | 2018-03-16 10:56:05 +0100 |
| commit | c690eddc2f3b44b24520f4a77cc3a4c9bde7d571 (patch) | |
| tree | b7ba2caa6ebb2e36a529f9bf7182c9e0a73d53c4 /arch/cris/arch-v10/lib/csumcpfruser.S | |
| parent | arch: remove tile port (diff) | |
| download | linux-dev-c690eddc2f3b44b24520f4a77cc3a4c9bde7d571.tar.xz linux-dev-c690eddc2f3b44b24520f4a77cc3a4c9bde7d571.zip | |
CRIS: Drop support for the CRIS port
The port was added back in 2000 so it's no longer even a good source
of inspiration for newer ports (if it ever was)
The last SoC (ARTPEC-3) with a CRIS main CPU was launched in 2008.
Coupled with time and working developer board hardware being
in low supply, it's time to drop the port from Linux.
So long and thanks for all the fish!
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/cris/arch-v10/lib/csumcpfruser.S')
| -rw-r--r-- | arch/cris/arch-v10/lib/csumcpfruser.S | 65 |
1 files changed, 0 insertions, 65 deletions
diff --git a/arch/cris/arch-v10/lib/csumcpfruser.S b/arch/cris/arch-v10/lib/csumcpfruser.S deleted file mode 100644 index beb8992ed478..000000000000 --- a/arch/cris/arch-v10/lib/csumcpfruser.S +++ /dev/null @@ -1,65 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Add-on to transform csum_partial_copy_nocheck in checksumcopy.S into - * csum_partial_copy_from_user by adding exception records. - * - * Copyright (C) 2001 Axis Communications AB. - * - * Author: Hans-Peter Nilsson. - */ - -#include <asm/errno.h> - -/* Same function body, but a different name. If we just added exception - records to _csum_partial_copy_nocheck and made it generic, we wouldn't - know a user fault from a kernel fault and we would have overhead in - each kernel caller for the error-pointer argument. - - unsigned int csum_partial_copy_from_user - (const char *src, char *dst, int len, unsigned int sum, int *errptr); - - Note that the errptr argument is only set if we encounter an error. - It is conveniently located on the stack, so the normal function body - does not have to handle it. */ - -#define csum_partial_copy_nocheck csum_partial_copy_from_user - -/* There are local labels numbered 1, 2 and 3 present to mark the - different from-user accesses. */ -#include "checksumcopy.S" - - .section .fixup,"ax" - -;; Here from the movem loop; restore stack. -4: - movem [$sp+],$r8 -;; r12 is already decremented. Add back chunk_size-2. - addq 40-2,$r12 - -;; Here from the word loop; r12 is off by 2; add it back. -5: - addq 2,$r12 - -;; Here from a failing single byte. -6: - -;; Signal in *errptr that we had a failing access. - moveq -EFAULT,$r9 - move.d $r9,[[$sp]] - -;; Clear the rest of the destination area using memset. Preserve the -;; checksum for the readable bytes. - push $srp - push $r13 - move.d $r11,$r10 - clear.d $r11 - jsr memset - pop $r10 - jump [$sp+] - - .previous - .section __ex_table,"a" - .dword 1b,4b - .dword 2b,5b - .dword 3b,6b - .previous |