threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
33 lines
774 B
C
33 lines
774 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* msi.h: Defines specific to the MBus - Sbus - Interface.
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*
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* Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
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* Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be)
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*/
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#ifndef _SPARC_MSI_H
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#define _SPARC_MSI_H
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/*
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* Locations of MSI Registers.
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*/
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#define MSI_MBUS_ARBEN 0xe0001008 /* MBus Arbiter Enable register */
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/*
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* Useful bits in the MSI Registers.
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*/
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#define MSI_ASYNC_MODE 0x80000000 /* Operate the MSI asynchronously */
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static inline void msi_set_sync(void)
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{
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__asm__ __volatile__ ("lda [%0] %1, %%g3\n\t"
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"andn %%g3, %2, %%g3\n\t"
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"sta %%g3, [%0] %1\n\t" : :
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"r" (MSI_MBUS_ARBEN),
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"i" (ASI_M_CTL), "r" (MSI_ASYNC_MODE) : "g3");
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}
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#endif /* !(_SPARC_MSI_H) */
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