/* 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 */