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