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author | Arnd Bergmann <arnd@arndb.de> | 2018-03-07 21:21:59 +0100 |
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committer | Arnd Bergmann <arnd@arndb.de> | 2018-03-09 23:19:58 +0100 |
commit | fd8773f9f544955f6f47dc2ac3ab85ad64376b7f (patch) | |
tree | 2eedaf10b5a4b62df0d3b514cec9614a6af6b563 /arch/frv/include/asm/syscall.h | |
parent | 739d875dd6982618020d30f58f8acf10f6076e6d (diff) | |
download | lwn-fd8773f9f544955f6f47dc2ac3ab85ad64376b7f.tar.gz lwn-fd8773f9f544955f6f47dc2ac3ab85ad64376b7f.zip |
arch: remove frv port
The Fujitsu FRV kernel port has been around for a long time, but has not
seen regular updates in several years and instead was marked 'Orphaned'
in 2016 by long-time maintainer David Howells.
The SoC product line apparently is apparently still around in the form
of the Socionext Milbeaut image processor, but this one no longer uses
the FRV CPU cores.
This removes all FRV specific files from the kernel.
Link: http://www.socionext.com/en/products/assp/milbeaut/
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/frv/include/asm/syscall.h')
-rw-r--r-- | arch/frv/include/asm/syscall.h | 123 |
1 files changed, 0 insertions, 123 deletions
diff --git a/arch/frv/include/asm/syscall.h b/arch/frv/include/asm/syscall.h deleted file mode 100644 index 70689eb29b98..000000000000 --- a/arch/frv/include/asm/syscall.h +++ /dev/null @@ -1,123 +0,0 @@ -/* syscall parameter access functions - * - * Copyright (C) 2009 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#ifndef _ASM_SYSCALL_H -#define _ASM_SYSCALL_H - -#include <linux/err.h> -#include <asm/ptrace.h> - -/* - * Get the system call number or -1 - */ -static inline long syscall_get_nr(struct task_struct *task, - struct pt_regs *regs) -{ - return regs->syscallno; -} - -/* - * Restore the clobbered GR8 register - * (1st syscall arg was overwritten with syscall return or error) - */ -static inline void syscall_rollback(struct task_struct *task, - struct pt_regs *regs) -{ - regs->gr8 = regs->orig_gr8; -} - -/* - * See if the syscall return value is an error, returning it if it is and 0 if - * not - */ -static inline long syscall_get_error(struct task_struct *task, - struct pt_regs *regs) -{ - return IS_ERR_VALUE(regs->gr8) ? regs->gr8 : 0; -} - -/* - * Get the syscall return value - */ -static inline long syscall_get_return_value(struct task_struct *task, - struct pt_regs *regs) -{ - return regs->gr8; -} - -/* - * Set the syscall return value - */ -static inline void syscall_set_return_value(struct task_struct *task, - struct pt_regs *regs, - int error, long val) -{ - if (error) - regs->gr8 = -error; - else - regs->gr8 = val; -} - -/* - * Retrieve the system call arguments - */ -static inline void syscall_get_arguments(struct task_struct *task, - struct pt_regs *regs, - unsigned int i, unsigned int n, - unsigned long *args) -{ - /* - * Do this simply for now. If we need to start supporting - * fetching arguments from arbitrary indices, this will need some - * extra logic. Presently there are no in-tree users that depend - * on this behaviour. - */ - BUG_ON(i); - - /* Argument pattern is: GR8, GR9, GR10, GR11, GR12, GR13 */ - switch (n) { - case 6: args[5] = regs->gr13; - case 5: args[4] = regs->gr12; - case 4: args[3] = regs->gr11; - case 3: args[2] = regs->gr10; - case 2: args[1] = regs->gr9; - case 1: args[0] = regs->gr8; - break; - default: - BUG(); - } -} - -/* - * Alter the system call arguments - */ -static inline void syscall_set_arguments(struct task_struct *task, - struct pt_regs *regs, - unsigned int i, unsigned int n, - const unsigned long *args) -{ - /* Same note as above applies */ - BUG_ON(i); - - switch (n) { - case 6: regs->gr13 = args[5]; - case 5: regs->gr12 = args[4]; - case 4: regs->gr11 = args[3]; - case 3: regs->gr10 = args[2]; - case 2: regs->gr9 = args[1]; - case 1: regs->gr8 = args[0]; - break; - default: - BUG(); - } -} - -#endif /* _ASM_SYSCALL_H */ |