[PATCH v4 0/1] Add sysfs interface to control class-of-service

Prathap Kumar Valsan
2019-10-15T07:14:32Z

For GEN11 MOCS are part of context register state. This means updating
CLOS also needs to update the context state of active contexts.

v4:
- Make it explicit in the commit message that we want to set CLOS global
on device (Chris)
- Fixe the Locking (Chris)
- Move the global configuration of contexts away from gt.(Chris)

v3: Rebase

v2:
- Update the interface to use two sysfs files(Joonas)
- Gen12 PCode interface is not ready yet to read the way mask.
So removed TGL support and added support for Gen11.
- Updating MOCS in Gen 11 also require changing the context image of
existing contexts.
- Referred to gen8_configure_all_contexts() as suggested by Chris.

Prathap Kumar Valsan (1):
drm/i915: Add sysfs interface to control class-of-service

drivers/gpu/drm/i915/Makefile | 1 +
drivers/gpu/drm/i915/gt/intel_lrc.c | 7 ++
drivers/gpu/drm/i915/gt/intel_lrc_reg.h | 1 +
drivers/gpu/drm/i915/gt/intel_mocs.c | 115 +++++++++++++++++++++
drivers/gpu/drm/i915/gt/intel_mocs.h | 7 ++
drivers/gpu/drm/i915/i915_clos.c | 128 ++++++++++++++++++++++++
drivers/gpu/drm/i915/i915_clos.h | 15 +++
drivers/gpu/drm/i915/i915_drv.h | 10 ++
drivers/gpu/drm/i915/i915_gem.c | 3 +
drivers/gpu/drm/i915/i915_reg.h | 1 +
drivers/gpu/drm/i915/i915_sysfs.c | 105 +++++++++++++++++++
11 files changed, 393 insertions(+)
create mode 100644 drivers/gpu/drm/i915/i915_clos.c
create mode 100644 drivers/gpu/drm/i915/i915_clos.h

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2.20.1