diff options
author | Arnd Bergmann <arnd@arndb.de> | 2018-03-07 22:23:24 +0100 |
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committer | Arnd Bergmann <arnd@arndb.de> | 2018-03-16 10:55:47 +0100 |
commit | 4ba66a9760722ccbb691b8f7116cad2f791cca7b (patch) | |
tree | e29f9624ad0b13aa11860e39440bbc5e24d18a30 /arch/blackfin/include/asm/switch_to.h | |
parent | b8c9c8f0190f4004d3d4364edb2dea5978dfc824 (diff) | |
download | linux-4ba66a9760722ccbb691b8f7116cad2f791cca7b.tar.bz2 |
arch: remove blackfin port
The Analog Devices Blackfin port was added in 2007 and was rather
active for a while, but all work on it has come to a standstill
over time, as Analog have changed their product line-up.
Aaron Wu confirmed that the architecture port is no longer relevant,
and multiple people suggested removing blackfin independently because
of some of its oddities like a non-working SMP port, and the amount of
duplication between the chip variants, which cause extra work when
doing cross-architecture changes.
Link: https://docs.blackfin.uclinux.org/
Acked-by: Aaron Wu <Aaron.Wu@analog.com>
Acked-by: Bryan Wu <cooloney@gmail.com>
Cc: Steven Miao <realmz6@gmail.com>
Cc: Mike Frysinger <vapier@chromium.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/blackfin/include/asm/switch_to.h')
-rw-r--r-- | arch/blackfin/include/asm/switch_to.h | 39 |
1 files changed, 0 insertions, 39 deletions
diff --git a/arch/blackfin/include/asm/switch_to.h b/arch/blackfin/include/asm/switch_to.h deleted file mode 100644 index aaf671be9242..000000000000 --- a/arch/blackfin/include/asm/switch_to.h +++ /dev/null @@ -1,39 +0,0 @@ -/* - * Copyright 2004-2009 Analog Devices Inc. - * Tony Kou (tonyko@lineo.ca) - * - * Licensed under the GPL-2 or later - */ - -#ifndef _BLACKFIN_SWITCH_TO_H -#define _BLACKFIN_SWITCH_TO_H - -#define prepare_to_switch() do { } while(0) - -/* - * switch_to(n) should switch tasks to task ptr, first checking that - * ptr isn't the current task, in which case it does nothing. - */ - -#include <asm/l1layout.h> -#include <asm/mem_map.h> - -asmlinkage struct task_struct *resume(struct task_struct *prev, struct task_struct *next); - -#ifndef CONFIG_SMP -#define switch_to(prev,next,last) \ -do { \ - memcpy (&task_thread_info(prev)->l1_task_info, L1_SCRATCH_TASK_INFO, \ - sizeof *L1_SCRATCH_TASK_INFO); \ - memcpy (L1_SCRATCH_TASK_INFO, &task_thread_info(next)->l1_task_info, \ - sizeof *L1_SCRATCH_TASK_INFO); \ - (last) = resume (prev, next); \ -} while (0) -#else -#define switch_to(prev, next, last) \ -do { \ - (last) = resume(prev, next); \ -} while (0) -#endif - -#endif /* _BLACKFIN_SWITCH_TO_H */ |