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authorBrian Nguyen <brian3.nguyen@intel.com>2025-12-13 05:32:30 +0800
committerMatthew Brost <matthew.brost@intel.com>2025-12-12 16:59:09 -0800
commit77ebc7c10d1607533cf7cf6c7a7b77105498d8b0 (patch)
treef4cec006c6e41954bd8af24f9231fed7bc9f7f0d /tools/perf/lib/Documentation/tutorial/git@git.tavy.me:linux.git
parent9b1a0e0a15c97987fdf56a615f3d13995bafd042 (diff)
drm/xe/guc: Add page reclamation interface to GuC
Add page reclamation related changes to GuC interface, handlers, and senders to support page reclamation. Currently TLB invalidations will perform an entire PPC flush in order to prevent stale memory access for noncoherent system memory. Page reclamation is an extension of the typical TLB invalidation workflow, allowing disabling of full PPC flush and enable selective PPC flushing. Selective flushing will be decided by a list of pages whom's address is passed to GuC at time of action. Page reclamation interfaces require at least GuC FW ver 70.31.0. v2: - Moved send_page_reclaim to first patch usage. - Add comments explaining shared done handler. (Matthew B) - Add FW version fallback to disable page reclaim on older versions. (Matthew B, Shuicheng) Signed-off-by: Brian Nguyen <brian3.nguyen@intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Shuicheng Lin <shuicheng.lin@intel.com> Signed-off-by: Matthew Brost <matthew.brost@intel.com> Link: https://patch.msgid.link/20251212213225.3564537-16-brian3.nguyen@intel.com
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