| Message ID | 20230118071609.17572-1-niranjana.vishwanathapura@intel.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | drm/i915/vm_bind: Add VM_BIND functionality | expand |
On Tue, 2023-01-17 at 23:15 -0800, Niranjana Vishwanathapura wrote: > DRM_I915_GEM_VM_BIND/UNBIND ioctls allows UMD to bind/unbind GEM > buffer objects (BOs) or sections of a BOs at specified GPU virtual > addresses on a specified address space (VM). Multiple mappings can map > to the same physical pages of an object (aliasing). These mappings (also > referred to as persistent mappings) will be persistent across multiple > GPU submissions (execbuf calls) issued by the UMD, without user having > to provide a list of all required mappings during each submission (as > required by older execbuf mode). > > This patch series support VM_BIND version 1, as described by the param > I915_PARAM_VM_BIND_VERSION. > > Add new execbuf3 ioctl (I915_GEM_EXECBUFFER3) which only works in > vm_bind mode. The vm_bind mode only works with this new execbuf3 ioctl. > The new execbuf3 ioctl will not have any execlist support and all the > legacy support like relocations etc., are removed. > > NOTEs: > * It is based on below VM_BIND design+uapi rfc. > Documentation/gpu/rfc/i915_vm_bind.rst > > * The IGT RFC series is posted as, > [PATCH i-g-t v10 0/19] vm_bind: Add VM_BIND validation support FYI, I created a Draft MR for the Mesa implementation: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21057 A Draft MR should be easier to track than simply a branch on a personal tree. Feel free to put this link in the next cover letters for v11 and above. > > v2: Address various review comments > v3: Address review comments and other fixes > v4: Remove vm_unbind out fence uapi which is not supported yet, > replace vm->vm_bind_mode check with i915_gem_vm_is_vm_bind_mode() > v5: Render kernel-doc, use PIN_NOEVICT, limit vm_bind support to > non-recoverable faults > v6: Rebased, minor fixes, add reserved fields to drm_i915_gem_vm_bind, > add new patch for async vm_unbind support > v7: Rebased, minor cleanups as per review feedback > v8: Rebased, add capture support > v9: Address capture support feedback from v8 > v10: Properly handle vma->resource for mappings with capture request > > Test-with: 20230118071350.17498-1-niranjana.vishwanathapura@intel.com > > Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com> > > Niranjana Vishwanathapura (23): > drm/i915/vm_bind: Expose vm lookup function > drm/i915/vm_bind: Add __i915_sw_fence_await_reservation() > drm/i915/vm_bind: Expose i915_gem_object_max_page_size() > drm/i915/vm_bind: Support partially mapped vma resource > drm/i915/vm_bind: Add support to create persistent vma > drm/i915/vm_bind: Implement bind and unbind of object > drm/i915/vm_bind: Support for VM private BOs > drm/i915/vm_bind: Add support to handle object evictions > drm/i915/vm_bind: Support persistent vma activeness tracking > drm/i915/vm_bind: Add out fence support > drm/i915/vm_bind: Abstract out common execbuf functions > drm/i915/vm_bind: Use common execbuf functions in execbuf path > drm/i915/vm_bind: Implement I915_GEM_EXECBUFFER3 ioctl > drm/i915/vm_bind: Update i915_vma_verify_bind_complete() > drm/i915/vm_bind: Expose i915_request_await_bind() > drm/i915/vm_bind: Handle persistent vmas in execbuf3 > drm/i915/vm_bind: userptr dma-resv changes > drm/i915/vm_bind: Limit vm_bind mode to non-recoverable contexts > drm/i915/vm_bind: Add uapi for user to enable vm_bind_mode > drm/i915/vm_bind: Render VM_BIND documentation > drm/i915/vm_bind: Async vm_unbind support > drm/i915/vm_bind: Properly build persistent map sg table > drm/i915/vm_bind: Support capture of persistent mappings > > Documentation/gpu/i915.rst | 78 +- > drivers/gpu/drm/i915/Makefile | 3 + > drivers/gpu/drm/i915/gem/i915_gem_context.c | 43 +- > drivers/gpu/drm/i915/gem/i915_gem_context.h | 17 + > drivers/gpu/drm/i915/gem/i915_gem_create.c | 72 +- > drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c | 6 + > .../gpu/drm/i915/gem/i915_gem_execbuffer.c | 522 +---------- > .../gpu/drm/i915/gem/i915_gem_execbuffer3.c | 872 ++++++++++++++++++ > .../drm/i915/gem/i915_gem_execbuffer_common.c | 671 ++++++++++++++ > .../drm/i915/gem/i915_gem_execbuffer_common.h | 76 ++ > drivers/gpu/drm/i915/gem/i915_gem_ioctls.h | 2 + > drivers/gpu/drm/i915/gem/i915_gem_object.c | 3 + > drivers/gpu/drm/i915/gem/i915_gem_object.h | 2 + > .../gpu/drm/i915/gem/i915_gem_object_types.h | 6 + > drivers/gpu/drm/i915/gem/i915_gem_userptr.c | 19 + > drivers/gpu/drm/i915/gem/i915_gem_vm_bind.h | 30 + > .../drm/i915/gem/i915_gem_vm_bind_object.c | 463 ++++++++++ > drivers/gpu/drm/i915/gt/intel_gtt.c | 22 + > drivers/gpu/drm/i915/gt/intel_gtt.h | 28 + > drivers/gpu/drm/i915/i915_driver.c | 4 + > drivers/gpu/drm/i915/i915_drv.h | 2 + > drivers/gpu/drm/i915/i915_gem.c | 14 +- > drivers/gpu/drm/i915/i915_gem_gtt.c | 39 + > drivers/gpu/drm/i915/i915_gem_gtt.h | 3 + > drivers/gpu/drm/i915/i915_getparam.c | 3 + > drivers/gpu/drm/i915/i915_gpu_error.c | 52 +- > drivers/gpu/drm/i915/i915_sw_fence.c | 28 +- > drivers/gpu/drm/i915/i915_sw_fence.h | 23 +- > drivers/gpu/drm/i915/i915_vma.c | 301 +++++- > drivers/gpu/drm/i915/i915_vma.h | 70 +- > drivers/gpu/drm/i915/i915_vma_types.h | 43 + > include/uapi/drm/i915_drm.h | 281 +++++- > 32 files changed, 3245 insertions(+), 553 deletions(-) > create mode 100644 drivers/gpu/drm/i915/gem/i915_gem_execbuffer3.c > create mode 100644 drivers/gpu/drm/i915/gem/i915_gem_execbuffer_common.c > create mode 100644 drivers/gpu/drm/i915/gem/i915_gem_execbuffer_common.h > create mode 100644 drivers/gpu/drm/i915/gem/i915_gem_vm_bind.h > create mode 100644 drivers/gpu/drm/i915/gem/i915_gem_vm_bind_object.c >
On Tue, Jan 17, 2023 at 11:15:46PM -0800, Niranjana Vishwanathapura wrote: >DRM_I915_GEM_VM_BIND/UNBIND ioctls allows UMD to bind/unbind GEM >buffer objects (BOs) or sections of a BOs at specified GPU virtual >addresses on a specified address space (VM). Multiple mappings can map >to the same physical pages of an object (aliasing). These mappings (also >referred to as persistent mappings) will be persistent across multiple >GPU submissions (execbuf calls) issued by the UMD, without user having >to provide a list of all required mappings during each submission (as >required by older execbuf mode). > >This patch series support VM_BIND version 1, as described by the param >I915_PARAM_VM_BIND_VERSION. > >Add new execbuf3 ioctl (I915_GEM_EXECBUFFER3) which only works in >vm_bind mode. The vm_bind mode only works with this new execbuf3 ioctl. >The new execbuf3 ioctl will not have any execlist support and all the >legacy support like relocations etc., are removed. > >NOTEs: >* It is based on below VM_BIND design+uapi rfc. > Documentation/gpu/rfc/i915_vm_bind.rst > >* The IGT RFC series is posted as, > [PATCH i-g-t v10 0/19] vm_bind: Add VM_BIND validation support > >v2: Address various review comments >v3: Address review comments and other fixes >v4: Remove vm_unbind out fence uapi which is not supported yet, > replace vm->vm_bind_mode check with i915_gem_vm_is_vm_bind_mode() >v5: Render kernel-doc, use PIN_NOEVICT, limit vm_bind support to > non-recoverable faults >v6: Rebased, minor fixes, add reserved fields to drm_i915_gem_vm_bind, > add new patch for async vm_unbind support >v7: Rebased, minor cleanups as per review feedback >v8: Rebased, add capture support >v9: Address capture support feedback from v8 >v10: Properly handle vma->resource for mappings with capture request > >Test-with: 20230118071350.17498-1-niranjana.vishwanathapura@intel.com > >Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com> > Hi, It has become clear that we have a long way towards fully featured implementation of VM_BIND in i915. Examples of the many challenges include integration with display, integration with userspace drivers, a rewrite of all the i915 IGTs to support execbuf3, alignment with DRM GPU VA manager[1] etc. We are stopping further VM_BIND upstreaming efforts in i915 so we can accelerate the merge plan for the new drm/xe driver[2] which has been designed for VM_BIND from the beginning. Since we are not proceeding further with this i915 VM_BIND patch series, the MTL support needed for setting the MOCS and PAT settings in an immutable way at buffer creation time has been posted in a separate series[3] under review. Thanks for all your feedback on this series which is much appreciated. Regards, Niranjana [1] https://www.spinics.net/lists/nouveau/msg11069.html [2] https://www.spinics.net/lists/dri-devel/msg390882.html [3] https://patchwork.freedesktop.org/series/115980/ >Niranjana Vishwanathapura (23): > drm/i915/vm_bind: Expose vm lookup function > drm/i915/vm_bind: Add __i915_sw_fence_await_reservation() > drm/i915/vm_bind: Expose i915_gem_object_max_page_size() > drm/i915/vm_bind: Support partially mapped vma resource > drm/i915/vm_bind: Add support to create persistent vma > drm/i915/vm_bind: Implement bind and unbind of object > drm/i915/vm_bind: Support for VM private BOs > drm/i915/vm_bind: Add support to handle object evictions > drm/i915/vm_bind: Support persistent vma activeness tracking > drm/i915/vm_bind: Add out fence support > drm/i915/vm_bind: Abstract out common execbuf functions > drm/i915/vm_bind: Use common execbuf functions in execbuf path > drm/i915/vm_bind: Implement I915_GEM_EXECBUFFER3 ioctl > drm/i915/vm_bind: Update i915_vma_verify_bind_complete() > drm/i915/vm_bind: Expose i915_request_await_bind() > drm/i915/vm_bind: Handle persistent vmas in execbuf3 > drm/i915/vm_bind: userptr dma-resv changes > drm/i915/vm_bind: Limit vm_bind mode to non-recoverable contexts > drm/i915/vm_bind: Add uapi for user to enable vm_bind_mode > drm/i915/vm_bind: Render VM_BIND documentation > drm/i915/vm_bind: Async vm_unbind support > drm/i915/vm_bind: Properly build persistent map sg table > drm/i915/vm_bind: Support capture of persistent mappings > > Documentation/gpu/i915.rst | 78 +- > drivers/gpu/drm/i915/Makefile | 3 + > drivers/gpu/drm/i915/gem/i915_gem_context.c | 43 +- > drivers/gpu/drm/i915/gem/i915_gem_context.h | 17 + > drivers/gpu/drm/i915/gem/i915_gem_create.c | 72 +- > drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c | 6 + > .../gpu/drm/i915/gem/i915_gem_execbuffer.c | 522 +---------- > .../gpu/drm/i915/gem/i915_gem_execbuffer3.c | 872 ++++++++++++++++++ > .../drm/i915/gem/i915_gem_execbuffer_common.c | 671 ++++++++++++++ > .../drm/i915/gem/i915_gem_execbuffer_common.h | 76 ++ > drivers/gpu/drm/i915/gem/i915_gem_ioctls.h | 2 + > drivers/gpu/drm/i915/gem/i915_gem_object.c | 3 + > drivers/gpu/drm/i915/gem/i915_gem_object.h | 2 + > .../gpu/drm/i915/gem/i915_gem_object_types.h | 6 + > drivers/gpu/drm/i915/gem/i915_gem_userptr.c | 19 + > drivers/gpu/drm/i915/gem/i915_gem_vm_bind.h | 30 + > .../drm/i915/gem/i915_gem_vm_bind_object.c | 463 ++++++++++ > drivers/gpu/drm/i915/gt/intel_gtt.c | 22 + > drivers/gpu/drm/i915/gt/intel_gtt.h | 28 + > drivers/gpu/drm/i915/i915_driver.c | 4 + > drivers/gpu/drm/i915/i915_drv.h | 2 + > drivers/gpu/drm/i915/i915_gem.c | 14 +- > drivers/gpu/drm/i915/i915_gem_gtt.c | 39 + > drivers/gpu/drm/i915/i915_gem_gtt.h | 3 + > drivers/gpu/drm/i915/i915_getparam.c | 3 + > drivers/gpu/drm/i915/i915_gpu_error.c | 52 +- > drivers/gpu/drm/i915/i915_sw_fence.c | 28 +- > drivers/gpu/drm/i915/i915_sw_fence.h | 23 +- > drivers/gpu/drm/i915/i915_vma.c | 301 +++++- > drivers/gpu/drm/i915/i915_vma.h | 70 +- > drivers/gpu/drm/i915/i915_vma_types.h | 43 + > include/uapi/drm/i915_drm.h | 281 +++++- > 32 files changed, 3245 insertions(+), 553 deletions(-) > create mode 100644 drivers/gpu/drm/i915/gem/i915_gem_execbuffer3.c > create mode 100644 drivers/gpu/drm/i915/gem/i915_gem_execbuffer_common.c > create mode 100644 drivers/gpu/drm/i915/gem/i915_gem_execbuffer_common.h > create mode 100644 drivers/gpu/drm/i915/gem/i915_gem_vm_bind.h > create mode 100644 drivers/gpu/drm/i915/gem/i915_gem_vm_bind_object.c > >-- >2.21.0.rc0.32.g243a4c7e27 >
DRM_I915_GEM_VM_BIND/UNBIND ioctls allows UMD to bind/unbind GEM buffer objects (BOs) or sections of a BOs at specified GPU virtual addresses on a specified address space (VM). Multiple mappings can map to the same physical pages of an object (aliasing). These mappings (also referred to as persistent mappings) will be persistent across multiple GPU submissions (execbuf calls) issued by the UMD, without user having to provide a list of all required mappings during each submission (as required by older execbuf mode). This patch series support VM_BIND version 1, as described by the param I915_PARAM_VM_BIND_VERSION. Add new execbuf3 ioctl (I915_GEM_EXECBUFFER3) which only works in vm_bind mode. The vm_bind mode only works with this new execbuf3 ioctl. The new execbuf3 ioctl will not have any execlist support and all the legacy support like relocations etc., are removed. NOTEs: * It is based on below VM_BIND design+uapi rfc. Documentation/gpu/rfc/i915_vm_bind.rst * The IGT RFC series is posted as, [PATCH i-g-t v10 0/19] vm_bind: Add VM_BIND validation support v2: Address various review comments v3: Address review comments and other fixes v4: Remove vm_unbind out fence uapi which is not supported yet, replace vm->vm_bind_mode check with i915_gem_vm_is_vm_bind_mode() v5: Render kernel-doc, use PIN_NOEVICT, limit vm_bind support to non-recoverable faults v6: Rebased, minor fixes, add reserved fields to drm_i915_gem_vm_bind, add new patch for async vm_unbind support v7: Rebased, minor cleanups as per review feedback v8: Rebased, add capture support v9: Address capture support feedback from v8 v10: Properly handle vma->resource for mappings with capture request Test-with: 20230118071350.17498-1-niranjana.vishwanathapura@intel.com Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com> Niranjana Vishwanathapura (23): drm/i915/vm_bind: Expose vm lookup function drm/i915/vm_bind: Add __i915_sw_fence_await_reservation() drm/i915/vm_bind: Expose i915_gem_object_max_page_size() drm/i915/vm_bind: Support partially mapped vma resource drm/i915/vm_bind: Add support to create persistent vma drm/i915/vm_bind: Implement bind and unbind of object drm/i915/vm_bind: Support for VM private BOs drm/i915/vm_bind: Add support to handle object evictions drm/i915/vm_bind: Support persistent vma activeness tracking drm/i915/vm_bind: Add out fence support drm/i915/vm_bind: Abstract out common execbuf functions drm/i915/vm_bind: Use common execbuf functions in execbuf path drm/i915/vm_bind: Implement I915_GEM_EXECBUFFER3 ioctl drm/i915/vm_bind: Update i915_vma_verify_bind_complete() drm/i915/vm_bind: Expose i915_request_await_bind() drm/i915/vm_bind: Handle persistent vmas in execbuf3 drm/i915/vm_bind: userptr dma-resv changes drm/i915/vm_bind: Limit vm_bind mode to non-recoverable contexts drm/i915/vm_bind: Add uapi for user to enable vm_bind_mode drm/i915/vm_bind: Render VM_BIND documentation drm/i915/vm_bind: Async vm_unbind support drm/i915/vm_bind: Properly build persistent map sg table drm/i915/vm_bind: Support capture of persistent mappings Documentation/gpu/i915.rst | 78 +- drivers/gpu/drm/i915/Makefile | 3 + drivers/gpu/drm/i915/gem/i915_gem_context.c | 43 +- drivers/gpu/drm/i915/gem/i915_gem_context.h | 17 + drivers/gpu/drm/i915/gem/i915_gem_create.c | 72 +- drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c | 6 + .../gpu/drm/i915/gem/i915_gem_execbuffer.c | 522 +---------- .../gpu/drm/i915/gem/i915_gem_execbuffer3.c | 872 ++++++++++++++++++ .../drm/i915/gem/i915_gem_execbuffer_common.c | 671 ++++++++++++++ .../drm/i915/gem/i915_gem_execbuffer_common.h | 76 ++ drivers/gpu/drm/i915/gem/i915_gem_ioctls.h | 2 + drivers/gpu/drm/i915/gem/i915_gem_object.c | 3 + drivers/gpu/drm/i915/gem/i915_gem_object.h | 2 + .../gpu/drm/i915/gem/i915_gem_object_types.h | 6 + drivers/gpu/drm/i915/gem/i915_gem_userptr.c | 19 + drivers/gpu/drm/i915/gem/i915_gem_vm_bind.h | 30 + .../drm/i915/gem/i915_gem_vm_bind_object.c | 463 ++++++++++ drivers/gpu/drm/i915/gt/intel_gtt.c | 22 + drivers/gpu/drm/i915/gt/intel_gtt.h | 28 + drivers/gpu/drm/i915/i915_driver.c | 4 + drivers/gpu/drm/i915/i915_drv.h | 2 + drivers/gpu/drm/i915/i915_gem.c | 14 +- drivers/gpu/drm/i915/i915_gem_gtt.c | 39 + drivers/gpu/drm/i915/i915_gem_gtt.h | 3 + drivers/gpu/drm/i915/i915_getparam.c | 3 + drivers/gpu/drm/i915/i915_gpu_error.c | 52 +- drivers/gpu/drm/i915/i915_sw_fence.c | 28 +- drivers/gpu/drm/i915/i915_sw_fence.h | 23 +- drivers/gpu/drm/i915/i915_vma.c | 301 +++++- drivers/gpu/drm/i915/i915_vma.h | 70 +- drivers/gpu/drm/i915/i915_vma_types.h | 43 + include/uapi/drm/i915_drm.h | 281 +++++- 32 files changed, 3245 insertions(+), 553 deletions(-) create mode 100644 drivers/gpu/drm/i915/gem/i915_gem_execbuffer3.c create mode 100644 drivers/gpu/drm/i915/gem/i915_gem_execbuffer_common.c create mode 100644 drivers/gpu/drm/i915/gem/i915_gem_execbuffer_common.h create mode 100644 drivers/gpu/drm/i915/gem/i915_gem_vm_bind.h create mode 100644 drivers/gpu/drm/i915/gem/i915_gem_vm_bind_object.c