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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
| commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
| tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /arch/s390/include/asm/msi.h | |
| parent | Initial commit. (diff) | |
| download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip | |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/s390/include/asm/msi.h')
| -rw-r--r-- | arch/s390/include/asm/msi.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/s390/include/asm/msi.h b/arch/s390/include/asm/msi.h new file mode 100644 index 0000000000..399343ed9f --- /dev/null +++ b/arch/s390/include/asm/msi.h @@ -0,0 +1,17 @@ +/* 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 |