The Xe_HP architecture introduces compute engines as a new engine class. These compute command streamers (CCS) are similar to the render engine, except that they're intended for GPGPU usage and lack support for the 3D pipeline.
For now we're just sending some initial "under the hood" preparation for CCS engines without actually exposing them to userspace or adding them to any platform's engine list yet. There may be a bit more GuC-related updates necessary before it's safe to expose them, so the actual uabi bits will come later once that's all worked out.
v2: - General rebase of patches from September. - Drop ABI bits for now; we'll make it visible to userspace later once all the GuC work is hammered out.
v3: - Flip order of RCU_MODE patch and GuC's ADS update to enable compute engines. (Daniele) - Replace fls(CCS_MASK) condition on fusing check with a simple IP version test to omit pre-Xe_HP platforms. - Fix a handful of checkpatch warnings.
Daniele Ceraolo Spurio (3): drm/i915/xehp: compute engine pipe_control drm/i915/xehp/guc: enable compute engine inside GuC drm/i915/xehp: handle fused off CCS engines
Matt Roper (8): drm/i915/xehp: Define compute class and engine drm/i915/xehp: CCS shares the render reset domain drm/i915/xehp: Add Compute CS IRQ handlers drm/i915/xehp: CCS should use RCS setup functions drm/i915: Move context descriptor fields to intel_lrc.h drm/i915/xehp: Define context scheduling attributes in lrc descriptor drm/i915/xehp: Enable ccs/dual-ctx in RCU_MODE drm/i915/xehp: Add compute workarounds
Matthew Brost (1): drm/i915/xehp: Don't support parallel submission on compute / render
Srinivasan Shanmugam (1): drm/i915/xehpsdv: Move render/compute engine reset domains related workarounds
drivers/gpu/drm/i915/gem/i915_gem_context.c | 10 +++ .../drm/i915/gem/selftests/i915_gem_context.c | 8 +- drivers/gpu/drm/i915/gt/gen8_engine_cs.c | 34 ++++++-- drivers/gpu/drm/i915/gt/intel_engine.h | 2 + drivers/gpu/drm/i915/gt/intel_engine_cs.c | 83 +++++++++++++++++++ drivers/gpu/drm/i915/gt/intel_engine_types.h | 11 ++- drivers/gpu/drm/i915/gt/intel_engine_user.c | 5 +- .../drm/i915/gt/intel_execlists_submission.c | 24 +++++- drivers/gpu/drm/i915/gt/intel_gpu_commands.h | 15 ++++ drivers/gpu/drm/i915/gt/intel_gt_irq.c | 15 +++- drivers/gpu/drm/i915/gt/intel_gt_regs.h | 45 +++------- drivers/gpu/drm/i915/gt/intel_lrc.c | 12 ++- drivers/gpu/drm/i915/gt/intel_lrc.h | 51 ++++++++++++ drivers/gpu/drm/i915/gt/intel_sseu.c | 17 +++- drivers/gpu/drm/i915/gt/intel_sseu.h | 4 +- drivers/gpu/drm/i915/gt/intel_workarounds.c | 73 +++++++++++++--- drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c | 5 ++ drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h | 32 +++++-- .../gpu/drm/i915/gt/uc/intel_guc_submission.c | 18 +++- .../drm/i915/gt/uc/selftest_guc_multi_lrc.c | 4 + drivers/gpu/drm/i915/i915_drv.h | 2 + drivers/gpu/drm/i915/i915_reg.h | 4 + 22 files changed, 394 insertions(+), 80 deletions(-)