1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _ASM_S390_MSI_H 3 #define _ASM_S390_MSI_H 4 #include <asm-generic/msi.h> 5 6 /* 7 * Work around S390 not using irq_domain at all so we can't set 8 * IRQ_DOMAIN_FLAG_ISOLATED_MSI. See for an explanation how it works: 9 * 10 * https://lore.kernel.org/r/31af8174-35e9-ebeb-b9ef-74c90d4bfd93@linux.ibm.com/ 11 * 12 * Note this is less isolated than the ARM/x86 versions as userspace can trigger 13 * MSI belonging to kernel devices within the same gisa. 14 */ 15 #define arch_is_isolated_msi() true 16 17 #endif 18