Currently, deciding how/where to apply new workarounds is challenging. Often,
workarounds end up applied incorrectly and get lost under certain circumstances
(e.g. a context switch or a GPU reset). This is a proposal to attempt to
eliminate some of this pain, by clarifying the current classification of
workarounds (context saved/restored, global registers, whitelisting, BB),
putting them together on the same file, and improving the existing validation
infrastructure (debugfs/i-g-t).
Oscar Mateo (11):
drm/i915: No need for RING_MAX_NONPRIV_SLOTS space
drm/i915: Move a bunch of workaround-related code to its own file
drm/i915: Split out functions for different kinds of workarounds
drm/i915: Move workarounds from init_clock_gating
drm/i915: Rename saved workarounds to make it explicit that they are
context WAs
drm/i915: Save all MMIO WAs and apply them at a later time
drm/i915: Save all Whitelist WAs and apply them at a later time
drm/i915: Print all workaround types correctly in debugfs
drm/i915: Move WA BB stuff to the workarounds file as well
drm/i915: Document the i915_workarounds file
drm/i915: Remove Gen9 WAs with no effect
drivers/gpu/drm/i915/Makefile | 1 +
drivers/gpu/drm/i915/i915_debugfs.c | 52 +-
drivers/gpu/drm/i915/i915_drv.c | 5 +
drivers/gpu/drm/i915/i915_drv.h | 20 +-
drivers/gpu/drm/i915/i915_gem.c | 3 +
drivers/gpu/drm/i915/i915_gem_context.c | 5 +
drivers/gpu/drm/i915/i915_reg.h | 4 +-
drivers/gpu/drm/i915/i915_workarounds.c | 1307 +++++++++++++++++++++++++++++++
drivers/gpu/drm/i915/i915_workarounds.h | 40 +
drivers/gpu/drm/i915/intel_engine_cs.c | 679 ----------------
drivers/gpu/drm/i915/intel_lrc.c | 266 +------
drivers/gpu/drm/i915/intel_pm.c | 188 +----
drivers/gpu/drm/i915/intel_ringbuffer.c | 5 +-
drivers/gpu/drm/i915/intel_ringbuffer.h | 3 -
14 files changed, 1429 insertions(+), 1149 deletions(-)
create mode 100644 drivers/gpu/drm/i915/i915_workarounds.c
create mode 100644 drivers/gpu/drm/i915/i915_workarounds.h
--
1.9.1
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