This patch set allows for FW assisted shadowing on supported platforms. A new enough CP FW is required. This feature is required for mid command buffer preemption and proper SR-IOV support. This also simplifies the UMDs by allowing persistent hardware state when the command submission executes. UMDs that use this will have their state retained across command submissions.
The mesa MR to implement the user mode side of this is: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21986 v2: Integrate feedback from V1. UMDs now need to specify init_shadow on first use. v3: Integrate feedback from V2. Drop GDS query, move query into dev info. Add MQD dumping for debug. Alex Deucher (11): drm/amdgpu/gfx11: add FW version check for new CP GFX shadow feature drm/amdgpu/gfx11: check the CP FW version CP GFX shadow support drm/amdgpu/UAPI: add new CS chunk for GFX shadow buffers drm/amdgpu: don't require a job for cond_exec and shadow drm/amdgpu: add UAPI to query GFX shadow sizes drm/amdgpu: add gfx shadow callback drm/amdgpu: add get_gfx_shadow_info callback for gfx11 drm/amdgpu: add support for new GFX shadow size query drm/amdgpu: bump driver version number for CP GFX shadow drm/amdgpu: track MQD size for gfx and compute drm/amdgpu: add debugfs interface for reading MQDs Christian König (2): drm/amdgpu: add gfx shadow CS IOCTL support drm/amdgpu: add gfx11 emit shadow callback drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 26 +++++++++ drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 3 +- drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c | 2 + drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h | 12 ++++ drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c | 19 ++++++- drivers/gpu/drm/amd/amdgpu/amdgpu_job.h | 6 ++ drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 14 +++++ drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c | 60 +++++++++++++++++++- drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h | 4 ++ drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 72 ++++++++++++++++++++++++ drivers/gpu/drm/amd/amdgpu/nvd.h | 5 +- include/uapi/drm/amdgpu_drm.h | 18 ++++++ 12 files changed, 236 insertions(+), 5 deletions(-) -- 2.39.2
