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This commit is contained in:
Bernhard Stoeckner
2023-09-25 18:42:44 +02:00
parent a8e01be6b2
commit 3916d91c99
31 changed files with 582 additions and 64 deletions
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2
kernel-open/nvidia-uvm/nvidia-uvm.Kbuild
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@@ -81,7 +81,7 @@ NV_CONFTEST_FUNCTION_COMPILE_TESTS += set_memory_uc
NV_CONFTEST_FUNCTION_COMPILE_TESTS += set_pages_uc
NV_CONFTEST_FUNCTION_COMPILE_TESTS += ktime_get_raw_ts64
NV_CONFTEST_FUNCTION_COMPILE_TESTS += ioasid_get
NV_CONFTEST_FUNCTION_COMPILE_TESTS += mm_pasid_set
NV_CONFTEST_FUNCTION_COMPILE_TESTS += mm_pasid_drop
NV_CONFTEST_FUNCTION_COMPILE_TESTS += migrate_vma_setup
NV_CONFTEST_FUNCTION_COMPILE_TESTS += mmget_not_zero
NV_CONFTEST_FUNCTION_COMPILE_TESTS += mmgrab

16
kernel-open/nvidia-uvm/uvm_ats_sva.h
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@@ -32,19 +32,23 @@
// For ATS support on aarch64, arm_smmu_sva_bind() is needed for
// iommu_sva_bind_device() calls. Unfortunately, arm_smmu_sva_bind() is not
// conftest-able. We instead look for the presence of ioasid_get() or
// mm_pasid_set(). ioasid_get() was added in the same patch series as
// arm_smmu_sva_bind() and removed in v6.0. mm_pasid_set() was added in the
// mm_pasid_drop(). ioasid_get() was added in the same patch series as
// arm_smmu_sva_bind() and removed in v6.0. mm_pasid_drop() was added in the
// same patch as the removal of ioasid_get(). We assume the presence of
// arm_smmu_sva_bind() if ioasid_get(v5.11 - v5.17) or mm_pasid_set(v5.18+) is
// arm_smmu_sva_bind() if ioasid_get(v5.11 - v5.17) or mm_pasid_drop(v5.18+) is
// present.
//
// arm_smmu_sva_bind() was added with commit
// 32784a9562fb0518b12e9797ee2aec52214adf6f and ioasid_get() was added with
// commit cb4789b0d19ff231ce9f73376a023341300aed96 (11/23/2020). Commit
// 701fac40384f07197b106136012804c3cae0b3de (02/15/2022) removed ioasid_get()
// and added mm_pasid_set().
#if UVM_CAN_USE_MMU_NOTIFIERS() && (defined(NV_IOASID_GET_PRESENT) || defined(NV_MM_PASID_SET_PRESENT))
#define UVM_ATS_SVA_SUPPORTED() 1
// and added mm_pasid_drop().
#if UVM_CAN_USE_MMU_NOTIFIERS() && (defined(NV_IOASID_GET_PRESENT) || defined(NV_MM_PASID_DROP_PRESENT))
#if defined(CONFIG_IOMMU_SVA)
#define UVM_ATS_SVA_SUPPORTED() 1
#else
#define UVM_ATS_SVA_SUPPORTED() 0
#endif
#else
#define UVM_ATS_SVA_SUPPORTED() 0
#endif