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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364/* SPDX-License-Identifier: GPL-2.0 * * Copyright 2008-2013 Solarflare Communications Inc. * Copyright (C) 2022-2025, Advanced Micro Devices, Inc. */
#ifndef CDX_MCDID_H#define CDX_MCDID_H
#include <linux/mutex.h>#include <linux/kref.h>#include <linux/rpmsg.h>
#include "mc_cdx_pcol.h"
#ifdef DEBUG#define CDX_WARN_ON_ONCE_PARANOID(x) WARN_ON_ONCE(x)#define CDX_WARN_ON_PARANOID(x) WARN_ON(x)#else#define CDX_WARN_ON_ONCE_PARANOID(x) do {} while (0)#define CDX_WARN_ON_PARANOID(x) do {} while (0)#endif
#define MCDI_BUF_LEN (8 + MCDI_CTL_SDU_LEN_MAX)
static inline struct cdx_mcdi_iface *cdx_mcdi_if(struct cdx_mcdi *cdx){ return cdx->mcdi ? &cdx->mcdi->iface : NULL;}
int cdx_mcdi_rpc_async(struct cdx_mcdi *cdx, unsigned int cmd, const struct cdx_dword *inbuf, size_t inlen, cdx_mcdi_async_completer *complete, unsigned long cookie);int cdx_mcdi_wait_for_quiescence(struct cdx_mcdi *cdx, unsigned int timeout_jiffies);
/* * We expect that 16- and 32-bit fields in MCDI requests and responses * are appropriately aligned, but 64-bit fields are only * 32-bit-aligned. */#define MCDI_BYTE(_buf, _field) \ ((void)BUILD_BUG_ON_ZERO(MC_CMD_ ## _field ## _LEN != 1), \ *MCDI_PTR(_buf, _field))#define MCDI_WORD(_buf, _field) \ ((void)BUILD_BUG_ON_ZERO(MC_CMD_ ## _field ## _LEN != 2), \ le16_to_cpu(*(__force const __le16 *)MCDI_PTR(_buf, _field)))#define MCDI_POPULATE_DWORD_1(_buf, _field, _name1, _value1) \ CDX_POPULATE_DWORD_1(*_MCDI_DWORD(_buf, _field), \ MC_CMD_ ## _name1, _value1)#define MCDI_SET_QWORD(_buf, _field, _value) \ do { \ CDX_POPULATE_DWORD_1(_MCDI_DWORD(_buf, _field)[0], \ CDX_DWORD, (u32)(_value)); \ CDX_POPULATE_DWORD_1(_MCDI_DWORD(_buf, _field)[1], \ CDX_DWORD, (u64)(_value) >> 32); \ } while (0)#define MCDI_QWORD(_buf, _field) \ (CDX_DWORD_FIELD(_MCDI_DWORD(_buf, _field)[0], CDX_DWORD) | \ (u64)CDX_DWORD_FIELD(_MCDI_DWORD(_buf, _field)[1], CDX_DWORD) << 32)
#endif /* CDX_MCDID_H */