[PATCH v5 00/23] MADVISE FOR XE
Himal Prasad Ghimiray
himal.prasad.ghimiray at intel.com
Tue Jul 22 13:35:03 UTC 2025
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.
-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
Himal Prasad Ghimiray (23):
Introduce drm_gpuvm_sm_map_ops_flags enums for sm_map_ops
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_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/vm: Add a delayed worker to merge fragmented vmas
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 | 93 ++++-
drivers/gpu/drm/nouveau/nouveau_uvmm.c | 1 +
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 | 2 +-
drivers/gpu/drm/xe/xe_pt.c | 39 +-
drivers/gpu/drm/xe/xe_svm.c | 154 +++++++-
drivers/gpu/drm/xe/xe_svm.h | 22 ++
drivers/gpu/drm/xe/xe_tile.h | 18 +
drivers/gpu/drm/xe/xe_vm.c | 518 ++++++++++++++++++++++++-
drivers/gpu/drm/xe/xe_vm.h | 10 +-
drivers/gpu/drm/xe/xe_vm_madvise.c | 431 ++++++++++++++++++++
drivers/gpu/drm/xe/xe_vm_madvise.h | 15 +
drivers/gpu/drm/xe/xe_vm_types.h | 65 +++-
include/drm/drm_gpusvm.h | 70 ++++
include/drm/drm_gpuvm.h | 25 +-
include/uapi/drm/xe_drm.h | 273 +++++++++++++
20 files changed, 1743 insertions(+), 157 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
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