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18aecc2b64
This support was partially present in the existing code (look for "__tilegx__" ifdefs) but with this change you can build a working kernel using the TILE-Gx toolchain and ARCH=tilegx. Most of these files are new, generally adding a foo_64.c file where previously there was just a foo_32.c file. The ARCH=tilegx directive redirects to arch/tile, not arch/tilegx, using the existing SRCARCH mechanism in the top-level Makefile. Changes to existing files: - <asm/bitops.h> and <asm/bitops_32.h> changed to factor the include of <asm-generic/bitops/non-atomic.h> in the common header. - <asm/compat.h> and arch/tile/kernel/compat.c changed to remove the "const" markers I had put on compat_sys_execve() when trying to match some recent similar changes to the non-compat execve. It turns out the compat version wasn't "upgraded" to use const. - <asm/opcode-tile_64.h> and <asm/opcode_constants_64.h> were previously included accidentally, with the 32-bit contents. Now they have the proper 64-bit contents. Finally, I had to hack the existing hacky drivers/input/input-compat.h to add yet another "#ifdef" for INPUT_COMPAT_TEST (same as x86_64). Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> [drivers/input]
93 lines
2.1 KiB
C
93 lines
2.1 KiB
C
#ifndef _INPUT_COMPAT_H
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#define _INPUT_COMPAT_H
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/*
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* 32bit compatibility wrappers for the input subsystem.
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*
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* Very heavily based on evdev.c - Copyright (c) 1999-2002 Vojtech Pavlik
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*/
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#include <linux/compiler.h>
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#include <linux/compat.h>
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#include <linux/input.h>
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#ifdef CONFIG_COMPAT
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/* Note to the author of this code: did it ever occur to
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you why the ifdefs are needed? Think about it again. -AK */
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#if defined(CONFIG_X86_64) || defined(CONFIG_TILE)
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# define INPUT_COMPAT_TEST is_compat_task()
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#elif defined(CONFIG_S390)
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# define INPUT_COMPAT_TEST test_thread_flag(TIF_31BIT)
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#elif defined(CONFIG_MIPS)
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# define INPUT_COMPAT_TEST test_thread_flag(TIF_32BIT_ADDR)
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#else
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# define INPUT_COMPAT_TEST test_thread_flag(TIF_32BIT)
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#endif
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struct input_event_compat {
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struct compat_timeval time;
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__u16 type;
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__u16 code;
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__s32 value;
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};
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struct ff_periodic_effect_compat {
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__u16 waveform;
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__u16 period;
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__s16 magnitude;
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__s16 offset;
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__u16 phase;
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struct ff_envelope envelope;
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__u32 custom_len;
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compat_uptr_t custom_data;
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};
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struct ff_effect_compat {
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__u16 type;
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__s16 id;
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__u16 direction;
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struct ff_trigger trigger;
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struct ff_replay replay;
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union {
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struct ff_constant_effect constant;
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struct ff_ramp_effect ramp;
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struct ff_periodic_effect_compat periodic;
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struct ff_condition_effect condition[2]; /* One for each axis */
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struct ff_rumble_effect rumble;
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} u;
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};
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static inline size_t input_event_size(void)
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{
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return INPUT_COMPAT_TEST ?
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sizeof(struct input_event_compat) : sizeof(struct input_event);
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}
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#else
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static inline size_t input_event_size(void)
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{
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return sizeof(struct input_event);
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}
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#endif /* CONFIG_COMPAT */
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int input_event_from_user(const char __user *buffer,
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struct input_event *event);
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int input_event_to_user(char __user *buffer,
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const struct input_event *event);
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int input_ff_effect_from_user(const char __user *buffer, size_t size,
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struct ff_effect *effect);
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#endif /* _INPUT_COMPAT_H */
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