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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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b4033c1715
MSI hardcoded delivery mode to use logical delivery mode. Recently x86_64 moved to use physical mode addressing to support physflat mode. With this mode enabled noticed that my eth with MSI werent working. msi_address_init() was hardcoded to use logical mode for i386 and x86_64. So when we switch to use physical mode, things stopped working. Since anyway we dont use lowest priority delivery with MSI, its always directed to just a single CPU. Its safe and simpler to use physical mode always, even when we use logical delivery mode for IPI's or other ioapic RTE's. Signed-off-by: Ashok Raj <ashok.raj@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
18 lines
446 B
C
18 lines
446 B
C
/*
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* Copyright (C) 2003-2004 Intel
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* Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
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*/
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#ifndef ASM_MSI_H
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#define ASM_MSI_H
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#define NR_VECTORS NR_IRQS
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#define FIRST_DEVICE_VECTOR IA64_FIRST_DEVICE_VECTOR
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#define LAST_DEVICE_VECTOR IA64_LAST_DEVICE_VECTOR
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static inline void set_intr_gate (int nr, void *func) {}
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#define IO_APIC_VECTOR(irq) (irq)
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#define ack_APIC_irq ia64_eoi
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#define MSI_TARGET_CPU_SHIFT 4
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#endif /* ASM_MSI_H */
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