Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
49 lines
1.3 KiB
C
49 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2024 Rivos Inc. */
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#include <asm/sbi.h>
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#define CREATE_TRACE_POINTS
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#include <asm/trace.h>
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long __sbi_base_ecall(int fid)
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{
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struct sbiret ret;
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ret = sbi_ecall(SBI_EXT_BASE, fid, 0, 0, 0, 0, 0, 0);
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if (!ret.error)
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return ret.value;
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else
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return sbi_err_map_linux_errno(ret.error);
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}
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EXPORT_SYMBOL(__sbi_base_ecall);
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struct sbiret __sbi_ecall(unsigned long arg0, unsigned long arg1,
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unsigned long arg2, unsigned long arg3,
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unsigned long arg4, unsigned long arg5,
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int fid, int ext)
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{
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struct sbiret ret;
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trace_sbi_call(ext, fid);
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register uintptr_t a0 asm ("a0") = (uintptr_t)(arg0);
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register uintptr_t a1 asm ("a1") = (uintptr_t)(arg1);
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register uintptr_t a2 asm ("a2") = (uintptr_t)(arg2);
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register uintptr_t a3 asm ("a3") = (uintptr_t)(arg3);
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register uintptr_t a4 asm ("a4") = (uintptr_t)(arg4);
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register uintptr_t a5 asm ("a5") = (uintptr_t)(arg5);
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register uintptr_t a6 asm ("a6") = (uintptr_t)(fid);
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register uintptr_t a7 asm ("a7") = (uintptr_t)(ext);
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asm volatile ("ecall"
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: "+r" (a0), "+r" (a1)
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: "r" (a2), "r" (a3), "r" (a4), "r" (a5), "r" (a6), "r" (a7)
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: "memory");
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ret.error = a0;
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ret.value = a1;
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trace_sbi_return(ext, ret.error, ret.value);
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return ret;
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}
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EXPORT_SYMBOL(__sbi_ecall);
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