Messages in this thread Patch in this message | | | From | Mauro Carvalho Chehab <> | Subject | [PATCH 12/21] drm/i915/guc: Introduce TLB_INVALIDATION_ALL action | Date | Wed, 13 Jul 2022 10:30:09 +0100 |
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From: Piotr Piórkowski <piotr.piorkowski@intel.com>
Add a new way to invalidate TLB via GuC using actions 0x7002 (TLB_INVALIDATION_ALL).
Those actions will be used on upcoming patches.
Signed-off-by: Piotr Piórkowski <piotr.piorkowski@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org> ---
See [PATCH 00/21] at: https://lore.kernel.org/all/cover.1657703926.git.mchehab@kernel.org/
drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h | 1 + drivers/gpu/drm/i915/gt/uc/intel_guc.c | 14 ++++++++++++++ drivers/gpu/drm/i915/gt/uc/intel_guc.h | 1 + 3 files changed, 16 insertions(+)
diff --git a/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h b/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h index 14e35a2f8306..fb0af33e43cc 100644 --- a/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h +++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h @@ -138,6 +138,7 @@ enum intel_guc_action { INTEL_GUC_ACTION_PAGE_FAULT_NOTIFICATION = 0x6001, INTEL_GUC_ACTION_TLB_INVALIDATION = 0x7000, INTEL_GUC_ACTION_TLB_INVALIDATION_DONE = 0x7001, + INTEL_GUC_ACTION_TLB_INVALIDATION_ALL = 0x7002, INTEL_GUC_ACTION_STATE_CAPTURE_NOTIFICATION = 0x8002, INTEL_GUC_ACTION_NOTIFY_FLUSH_LOG_BUFFER_TO_FILE = 0x8003, INTEL_GUC_ACTION_NOTIFY_CRASH_DUMP_POSTED = 0x8004, diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c index 5c59f9b144a3..8a104a292598 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c @@ -945,6 +945,20 @@ int intel_guc_invalidate_tlb_guc(struct intel_guc *guc, return guc_send_invalidate_tlb(guc, action, ARRAY_SIZE(action)); } +int intel_guc_invalidate_tlb_all(struct intel_guc *guc) +{ + u32 action[] = { + INTEL_GUC_ACTION_TLB_INVALIDATION_ALL, + 0, + INTEL_GUC_TLB_INVAL_MODE_HEAVY << INTEL_GUC_TLB_INVAL_MODE_SHIFT | + INTEL_GUC_TLB_INVAL_FLUSH_CACHE, + }; + + GEM_BUG_ON(!INTEL_GUC_SUPPORTS_TLB_INVALIDATION(guc)); + + return guc_send_invalidate_tlb(guc, action, ARRAY_SIZE(action)); +} + /** * intel_guc_load_status - dump information about GuC load status * @guc: the GuC diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.h b/drivers/gpu/drm/i915/gt/uc/intel_guc.h index 73c46d405dc4..01c6478451cc 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.h +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.h @@ -386,6 +386,7 @@ int intel_guc_self_cfg64(struct intel_guc *guc, u16 key, u64 value); int intel_guc_invalidate_tlb_guc(struct intel_guc *guc, enum intel_guc_tlb_inval_mode mode); +int intel_guc_invalidate_tlb_all(struct intel_guc *guc); static inline bool intel_guc_is_supported(struct intel_guc *guc) { -- 2.36.1
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