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| author | Lu Baolu <baolu.lu@linux.intel.com> | 2021-03-23 09:05:58 +0800 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2021-04-07 10:15:19 +0200 |
| commit | 06905ea8319731036695cf1a4c53c12b0f9373cb (patch) | |
| tree | dacef73ef4ee613b4bb8e54ba3d7ad7abd136431 /include/linux/intel-svm.h | |
| parent | 2e1a44c1c4acf209c0dd7bc04421d101b9e80d11 (diff) | |
| download | lwn-06905ea8319731036695cf1a4c53c12b0f9373cb.tar.gz lwn-06905ea8319731036695cf1a4c53c12b0f9373cb.zip | |
iommu/vt-d: Remove SVM_FLAG_PRIVATE_PASID
The SVM_FLAG_PRIVATE_PASID has never been referenced in the tree, and
there's no plan to have anything to use it. So cleanup it.
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20210323010600.678627-4-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'include/linux/intel-svm.h')
| -rw-r--r-- | include/linux/intel-svm.h | 16 |
1 files changed, 3 insertions, 13 deletions
diff --git a/include/linux/intel-svm.h b/include/linux/intel-svm.h index 6c9d10c0fb1e..10fa80eef13a 100644 --- a/include/linux/intel-svm.h +++ b/include/linux/intel-svm.h @@ -15,16 +15,6 @@ #define SVM_REQ_PRIV (1<<0) /* - * The SVM_FLAG_PRIVATE_PASID flag requests a PASID which is *not* the "main" - * PASID for the current process. Even if a PASID already exists, a new one - * will be allocated. And the PASID allocated with SVM_FLAG_PRIVATE_PASID - * will not be given to subsequent callers. This facility allows a driver to - * disambiguate between multiple device contexts which access the same MM, - * if there is no other way to do so. It should be used sparingly, if at all. - */ -#define SVM_FLAG_PRIVATE_PASID (1<<0) - -/* * The SVM_FLAG_SUPERVISOR_MODE flag requests a PASID which can be used only * for access to kernel addresses. No IOTLB flushes are automatically done * for kernel mappings; it is valid only for access to the kernel's static @@ -35,18 +25,18 @@ * It is unlikely that we will ever hook into flush_tlb_kernel_range() to * do such IOTLB flushes automatically. */ -#define SVM_FLAG_SUPERVISOR_MODE (1<<1) +#define SVM_FLAG_SUPERVISOR_MODE BIT(0) /* * The SVM_FLAG_GUEST_MODE flag is used when a PASID bind is for guest * processes. Compared to the host bind, the primary differences are: * 1. mm life cycle management * 2. fault reporting */ -#define SVM_FLAG_GUEST_MODE (1<<2) +#define SVM_FLAG_GUEST_MODE BIT(1) /* * The SVM_FLAG_GUEST_PASID flag is used when a guest has its own PASID space, * which requires guest and host PASID translation at both directions. */ -#define SVM_FLAG_GUEST_PASID (1<<3) +#define SVM_FLAG_GUEST_PASID BIT(2) #endif /* __INTEL_SVM_H__ */ |