This patch series enables command submission via the GuC. In this mode, instead of the host CPU driving the execlist port directly, it hands over work items to the GuC, using a doorbell mechanism to tell the GuC that new items have been added to its work queue. The GuC then dispatches contexts to the various GPU engines, and manages the resulting context- switch interrupts. Completion of a batch is however still signalled to the CPU; the GuC is not involved in handling user interrupts. There are two subsequences within the patch series: drm/i915: Add i915_gem_object_create_from_data() drm/i915: Add GuC-related module parameters drm/i915: Add GuC-related header files drm/i915: GuC-specific firmware loader drm/i915: Debugfs interface to read GuC load status These five patches make up the GuC loader and its prerequisites. At this point in the sequence we can load and activate the GuC firmware, but not submit any batches through it. (This is nonetheless a potentially useful state, as the GuC could do other useful work even when not handling batch submissions). drm/i915: Expose two LRC functions for GuC submission mode drm/i915: GuC submission setup, phase 1 drm/i915: Enable GuC firmware log drm/i915: Implementation of GuC client drm/i915: Interrupt routing for GuC submission drm/i915: Integrate GuC-based command submission drm/i915: Debugfs interface for GuC submission statistics drm/i915: Enable GuC submission, where supported In this second section, we implement the GuC submission mechanism, link it into the (execlist-based) submission path, and finally enable it (on supported platforms). On platforms where there is no GuC, or if GuC submission is explicitly disabled, batch submission will revert to using the execlist mechanism directly. On the other hand, if the GuC firmware cannot be found or is invalid, the GPU will be unusable. The GuC firmware itself is not included in this patchset; it is or will be available for download from https://01.org/linuxgraphics/downloads/ This driver works with and requires GuC firmware revision 3.x. It will not work with any firmware version 1.x, as the GuC protocol in those revisions was incompatible and is no longer supported. Ben Widawsky (0): Vinit Azad (0): Michael H. Nguyen (0): created the original versions on which some of these patches are based. Alex Dai (6): drm/i915: Add GuC-related module parameters drm/i915: GuC-specific firmware loader drm/i915: Debugfs interface to read GuC load status drm/i915: GuC submission setup, phase 1 drm/i915: Enable GuC firmware log drm/i915: Integrate GuC-based command submission Dave Gordon (7): drm/i915: Add i915_gem_object_create_from_data() drm/i915: Add GuC-related header files drm/i915: Expose two LRC functions for GuC submission mode drm/i915: Implementation of GuC client drm/i915: Interrupt routing for GuC submission drm/i915: Debugfs interface for GuC submission statistics drm/i915: Enable GuC submission, where supported Documentation/DocBook/drm.tmpl | 14 + drivers/gpu/drm/i915/Makefile | 4 + drivers/gpu/drm/i915/i915_debugfs.c | 110 +++- drivers/gpu/drm/i915/i915_dma.c | 4 + drivers/gpu/drm/i915/i915_drv.h | 15 + drivers/gpu/drm/i915/i915_gem.c | 53 ++ drivers/gpu/drm/i915/i915_guc_reg.h | 102 ++++ drivers/gpu/drm/i915/i915_guc_submission.c | 853 +++++++++++++++++++++++++++++ drivers/gpu/drm/i915/i915_params.c | 9 + drivers/gpu/drm/i915/i915_reg.h | 15 +- drivers/gpu/drm/i915/intel_guc.h | 118 ++++ drivers/gpu/drm/i915/intel_guc_fwif.h | 245 +++++++++ drivers/gpu/drm/i915/intel_guc_loader.c | 618 +++++++++++++++++++++ drivers/gpu/drm/i915/intel_lrc.c | 72 ++- drivers/gpu/drm/i915/intel_lrc.h | 9 + 15 files changed, 2211 insertions(+), 30 deletions(-) create mode 100644 drivers/gpu/drm/i915/i915_guc_reg.h create mode 100644 drivers/gpu/drm/i915/i915_guc_submission.c create mode 100644 drivers/gpu/drm/i915/intel_guc.h create mode 100644 drivers/gpu/drm/i915/intel_guc_fwif.h create mode 100644 drivers/gpu/drm/i915/intel_guc_loader.c -- 1.9.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
