Orange Pi5 kernel

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_IOMMU_H
#define _ASM_X86_IOMMU_H
 
#include <linux/acpi.h>
 
#include <asm/e820/api.h>
 
extern int force_iommu, no_iommu;
extern int iommu_detected;
 
/* 10 seconds */
#define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000)
 
static inline int __init
arch_rmrr_sanity_check(struct acpi_dmar_reserved_memory *rmrr)
{
<------>u64 start = rmrr->base_address;
<------>u64 end = rmrr->end_address + 1;
 
<------>if (e820__mapped_all(start, end, E820_TYPE_RESERVED))
<------><------>return 0;
 
<------>pr_err(FW_BUG "No firmware reserved region can cover this RMRR [%#018Lx-%#018Lx], contact BIOS vendor for fixes\n",
<------>       start, end - 1);
<------>return -EINVAL;
}
 
#endif /* _ASM_X86_IOMMU_H */