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author | Bjoern A. Zeeb <bz@FreeBSD.org> | 2021-01-28 16:15:12 +0000 |
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committer | Bjoern A. Zeeb <bz@FreeBSD.org> | 2021-01-28 16:15:12 +0000 |
commit | 4abbf816bf06aa70200c5d1d976dd61c2752bdaf (patch) | |
tree | ed23f338f3070d8d49d07da7cf10ed926d906c32 /sys/compat/linuxkpi/common/include/asm | |
parent | a6c2507d1baedb183268e31bc6b6f659a9529904 (diff) | |
download | src-4abbf816bf06aa70200c5d1d976dd61c2752bdaf.tar.gz src-4abbf816bf06aa70200c5d1d976dd61c2752bdaf.zip |
LinuxKPI: upstream a collection of drm-kmod conflicting changes
The upcoming in-kernel implementations for LinuxKPI based on work on
iwlwifi (and other wireless drivers) conflicts in a few places with
the drm-kmod graphics work outside the base system.
In order to transition smoothly extract the conflicting bits.
This included "unaligned" accessor functions, sg_pcopy_from_buffer(),
IS_*() macros (to be further restricted in the future), power management
bits (possibly no longer conflicting with DRM), and other minor changes.
Obtained-from: bz_iwlwifi
Sponsored-by: The FreeBSD Foundation
MFC after: 3 days
Reviewed by: kib, hselasky, manu, bdragon (looked at earlier versions)
Differential Revision: https://reviews.freebsd.org/D26598
Diffstat (limited to 'sys/compat/linuxkpi/common/include/asm')
-rw-r--r-- | sys/compat/linuxkpi/common/include/asm/unaligned.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/sys/compat/linuxkpi/common/include/asm/unaligned.h b/sys/compat/linuxkpi/common/include/asm/unaligned.h new file mode 100644 index 000000000000..7597f00f7596 --- /dev/null +++ b/sys/compat/linuxkpi/common/include/asm/unaligned.h @@ -0,0 +1,78 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (c) 2020 The FreeBSD Foundation + * + * This software was developed by Björn Zeeb under sponsorship from + * the FreeBSD Foundation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#ifndef _ASM_UNALIGNED_H +#define _ASM_UNALIGNED_H + +#include <linux/types.h> +#include <asm/byteorder.h> + +static __inline uint32_t +get_unaligned_le32(const void *p) +{ + + return (le32_to_cpup((const __le32 *)p)); +} + +static __inline void +put_unaligned_le32(__le32 v, void *p) +{ + __le32 x; + + x = cpu_to_le32(v); + memcpy(p, &x, sizeof(x)); +} + +static __inline void +put_unaligned_le64(__le64 v, void *p) +{ + __le64 x; + + x = cpu_to_le64(v); + memcpy(p, &x, sizeof(x)); +} + +static __inline uint16_t +get_unaligned_be16(const void *p) +{ + + return (be16_to_cpup((const __be16 *)p)); +} + +static __inline uint32_t +get_unaligned_be32(const void *p) +{ + + return (be32_to_cpup((const __be32 *)p)); +} + +#endif /* _ASM_UNALIGNED_H */ |