[PATCH i-g-t v14 00/11] Madvise feature in SVM for Multi-GPU configs

[nishit.sharma@intel.com]

From: Nishit Sharma <nishit.sharma@intel.com>

This patch series adds comprehensive SVM multi-GPU IGT test coverage for
madvise and prefetch functionality.

ver2:
- Test name changed in commits
- In patchwork v1 patch is missing due to last patch was not sent

ver3:
- In patch-7 tags were added and it was not sent on patchwork

ver4:
- In patch file was added which is not available in source which caused
  CI build failure.

ver5:
- Added subtest function wrappers
- Subtests executing for all GPUs enumerated

ver7:
- Optimized function calling which are frequenctly called
- Incorporated review comments (Thomas Hellstrom)

ver8:
- Incorporated review comments (Thomas Hellstrom)
- Seperated madvise and lr_sync patches
- merged added 0 as instance parameter in xe_vm_madvise() call in
  xe_exec_system_allocator with xe_vm_madvise lib changes
- Subtests declared in const struct section[] and optimized
- All subtests executed with and without prefetch

ver9:
- Incorporated review comments (Pravalika, Thomas)
- Optimized code. Multiple same function called put in single function
- Added READ_ONCE/WRITE_once instead dereferecing.

ver10:
- Incorporated review comments (Thomas)

ver11:
- Incorporated review comments (Thomas)
- For conflict madvise case instead assertion added conditon

ver12:
- Incorporated review comments (Thomas)

ver13:
- Created seprate commit for drm/xe/uapi aligned with KMD

ver14:
- replaced igt_warn with igt_debug to avoid unnecessary CI run warnings

Nishit Sharma (11):
  drm-uapi/xe: Sync with madvise interface
  lib/xe: Add instance parameter to xe_vm_madvise
  lib/xe: Add synchronous helpers for VM bind/unbind operations
  tests/intel/xe_multigpu_svm: Add SVM multi-GPU xGPU memory access test
  tests/intel/xe_multigpu_svm: Add SVM multi-GPU atomic operations
  tests/intel/xe_multigpu_svm: Add SVM multi-GPU coherency test
  tests/intel/xe_multigpu_svm: Add SVM multi-GPU performance test
  tests/intel/xe_multigpu_svm: Add SVM multi-GPU fault handling test
  tests/intel/xe_multigpu_svm: Add SVM multi-GPU simultaneous access
    test
  tests/intel/xe_multigpu_svm: Add SVM multi-GPU conflicting madvise
    test
  tests/intel/xe_multigpu_svm: Add SVM multi-GPU migration test

 include/drm-uapi/xe_drm.h              |   26 +-
 lib/xe/xe_ioctl.c                      |   52 +-
 lib/xe/xe_ioctl.h                      |    9 +-
 tests/intel/xe_exec_system_allocator.c |    8 +-
 tests/intel/xe_multigpu_svm.c          | 1552 ++++++++++++++++++++++++
 tests/meson.build                      |    3 +-
 6 files changed, 1632 insertions(+), 18 deletions(-)
 create mode 100644 tests/intel/xe_multigpu_svm.c

-- 
2.48.1