Provides a user API to assign attributes like pat_index, atomic operation type, and preferred location for SVM ranges. The Kernel Mode Driver (KMD) may split existing VMAs to cover input ranges, assign user-provided attributes, and invalidate existing PTEs so that the next page fault/prefetch can use the new attributes.
Tested-with: https://github.com/intel/compute-runtime/pull/845 -v9 Nits -v8 Define new function in gpuvm for madvise Fix tile check in ops_create -v7 Change gpuvm layering on gpuvm_map_req struct Fix EAGAIN return on garbage collector splitting vma -v6 Rebase on gpuvm patches Address review comments -v5 Restore attributes to default after free from userspace Add defragment worker to merge cpu mirror vma with default attributes Avoid using VMA in uapi address review comments -v4: fix atomic policies fix attribute copy address review comments Boris Brezillon (2): drm/gpuvm: Pass map arguments through a struct drm/gpuvm: Kill drm_gpuva_init() Himal Prasad Ghimiray (22): drm/gpuvm: Introduce drm_gpuvm_madvise_ops_create drm/xe/uapi: Add madvise interface drm/xe/vm: Add attributes struct as member of vma drm/xe/vma: Move pat_index to vma attributes drm/xe/vma: Modify new_vma to accept struct xe_vma_mem_attr as parameter drm/gpusvm: Make drm_gpusvm_for_each_* macros public drm/xe/svm: Split system allocator vma incase of madvise call drm/xe: Allow CPU address mirror VMA unbind with gpu bindings for madvise drm/xe/svm: Add xe_svm_ranges_zap_ptes_in_range() for PTE zapping drm/xe: Implement madvise ioctl for xe drm/xe/svm: Add svm ranges migration policy on atomic access drm/xe/madvise: Update migration policy based on preferred location drm/xe/svm: Support DRM_XE_SVM_MEM_RANGE_ATTR_PAT memory attribute drm/xe/uapi: Add flag for consulting madvise hints on svm prefetch drm/xe/svm: Consult madvise preferred location in prefetch drm/xe/bo: Add attributes field to xe_bo drm/xe/bo: Update atomic_access attribute on madvise drm/xe/madvise: Skip vma invalidation if mem attr are unchanged drm/xe/vm: Add helper to check for default VMA memory attributes drm/xe: Reset VMA attributes to default in SVM garbage collector drm/xe: Enable madvise ioctl for xe drm/xe/uapi: Add UAPI for querying VMA count and memory attributes drivers/gpu/drm/drm_gpusvm.c | 122 ++----- drivers/gpu/drm/drm_gpuvm.c | 287 ++++++++++++---- drivers/gpu/drm/imagination/pvr_vm.c | 15 +- drivers/gpu/drm/msm/msm_gem_vma.c | 35 +- drivers/gpu/drm/nouveau/nouveau_uvmm.c | 11 +- drivers/gpu/drm/panthor/panthor_mmu.c | 13 +- drivers/gpu/drm/xe/Makefile | 1 + drivers/gpu/drm/xe/xe_bo.c | 29 +- drivers/gpu/drm/xe/xe_bo_types.h | 8 + drivers/gpu/drm/xe/xe_device.c | 4 + drivers/gpu/drm/xe/xe_gt_pagefault.c | 35 +- drivers/gpu/drm/xe/xe_pt.c | 39 ++- drivers/gpu/drm/xe/xe_svm.c | 254 ++++++++++++-- drivers/gpu/drm/xe/xe_svm.h | 23 ++ drivers/gpu/drm/xe/xe_vm.c | 438 ++++++++++++++++++++++-- drivers/gpu/drm/xe/xe_vm.h | 10 +- drivers/gpu/drm/xe/xe_vm_madvise.c | 445 +++++++++++++++++++++++++ drivers/gpu/drm/xe/xe_vm_madvise.h | 15 + drivers/gpu/drm/xe/xe_vm_types.h | 57 +++- include/drm/drm_gpusvm.h | 70 ++++ include/drm/drm_gpuvm.h | 38 ++- include/uapi/drm/xe_drm.h | 274 +++++++++++++++ 22 files changed, 1922 insertions(+), 301 deletions(-) create mode 100644 drivers/gpu/drm/xe/xe_vm_madvise.c create mode 100644 drivers/gpu/drm/xe/xe_vm_madvise.h -- 2.34.1
