Date: Mon, 20 Mar 2023 20:47:49 GMT From: =?utf-8?Q?Jean-S=C3=A9bastien=20P=C3=A9dron?= <dumbbell@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: eef905a85907 - main - linuxkpi: Add <linux/iommu.h> Message-ID: <202303202047.32KKln02083293@gitrepo.freebsd.org>
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The branch main has been updated by dumbbell: URL: https://cgit.FreeBSD.org/src/commit/?id=eef905a85907102bc00b76b5b135c24cabe0456a commit eef905a85907102bc00b76b5b135c24cabe0456a Author: Jean-Sébastien Pédron <dumbbell@FreeBSD.org> AuthorDate: 2023-02-20 20:48:06 +0000 Commit: Jean-Sébastien Pédron <dumbbell@FreeBSD.org> CommitDate: 2023-03-20 20:47:36 +0000 linuxkpi: Add <linux/iommu.h> It defines a small part of the IOMMU API of Linux. We don't implement that yet. Reviewed by: manu Approved by: manu Differential Revision: https://reviews.freebsd.org/D39054 --- sys/compat/linuxkpi/common/include/linux/iommu.h | 29 ++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/sys/compat/linuxkpi/common/include/linux/iommu.h b/sys/compat/linuxkpi/common/include/linux/iommu.h new file mode 100644 index 000000000000..391d9778a0c8 --- /dev/null +++ b/sys/compat/linuxkpi/common/include/linux/iommu.h @@ -0,0 +1,29 @@ +/* Public domain. */ + +#ifndef _LINUXKPI_LINUX_IOMMU_H_ +#define _LINUXKPI_LINUX_IOMMU_H_ + +#include <linux/device.h> + +#define __IOMMU_DOMAIN_PAGING (1U << 0) +#define __IOMMU_DOMAIN_DMA_API (1U << 1) +#define __IOMMU_DOMAIN_PT (1U << 2) +#define __IOMMU_DOMAIN_DMA_FQ (1U << 3) + +#define IOMMU_DOMAIN_BLOCKED (0U) +#define IOMMU_DOMAIN_IDENTITY (__IOMMU_DOMAIN_PT) +#define IOMMU_DOMAIN_UNMANAGED (__IOMMU_DOMAIN_PAGING) +#define IOMMU_DOMAIN_DMA (__IOMMU_DOMAIN_PAGING | __IOMMU_DOMAIN_DMA_API) +#define IOMMU_DOMAIN_DMA_FQ (__IOMMU_DOMAIN_PAGING | __IOMMU_DOMAIN_DMA_API | __IOMMU_DOMAIN_DMA_FQ) + +struct iommu_domain { + unsigned int type; +}; + +static inline struct iommu_domain * +iommu_get_domain_for_dev(struct device *dev __unused) +{ + return (NULL); +} + +#endif /* _LINUXKPI_LINUX_IOMMU_H_ */
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