From a03aac442d6f4ca4525e526047d831efb77b436a Mon Sep 17 00:00:00 2001 From: Michal Wajdeczko Date: Wed, 10 May 2017 12:59:26 +0000 Subject: [PATCH] drm/i915/guc: Move notification code into virtual function Prepare for alternate GuC notification mechanism. Signed-off-by: Michal Wajdeczko Cc: Joonas Lahtinen Cc: Daniele Ceraolo Spurio Reviewed-by: Daniele Ceraolo Spurio [Joonas: Added newlines] Signed-off-by: Joonas Lahtinen --- drivers/gpu/drm/i915/intel_uc.c | 10 +++++++++- drivers/gpu/drm/i915/intel_uc.h | 9 +++++++++ 2 files changed, 18 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c index 7fd75ca..72f49e6 100644 --- a/drivers/gpu/drm/i915/intel_uc.c +++ b/drivers/gpu/drm/i915/intel_uc.c @@ -94,12 +94,20 @@ void intel_uc_sanitize_options(struct drm_i915_private *dev_priv) i915.enable_guc_submission = HAS_GUC_SCHED(dev_priv); } +static void guc_write_irq_trigger(struct intel_guc *guc) +{ + struct drm_i915_private *dev_priv = guc_to_i915(guc); + + I915_WRITE(GUC_SEND_INTERRUPT, GUC_SEND_TRIGGER); +} + void intel_uc_init_early(struct drm_i915_private *dev_priv) { struct intel_guc *guc = &dev_priv->guc; mutex_init(&guc->send_mutex); guc->send = intel_guc_send_nop; + guc->notify = guc_write_irq_trigger; } static void fetch_uc_fw(struct drm_i915_private *dev_priv, @@ -413,7 +421,7 @@ int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32 len) POSTING_READ(SOFT_SCRATCH(i - 1)); - I915_WRITE(GUC_SEND_INTERRUPT, GUC_SEND_TRIGGER); + intel_guc_notify(guc); /* * No GuC command should ever take longer than 10ms. diff --git a/drivers/gpu/drm/i915/intel_uc.h b/drivers/gpu/drm/i915/intel_uc.h index 1e0eecd..2af5633 100644 --- a/drivers/gpu/drm/i915/intel_uc.h +++ b/drivers/gpu/drm/i915/intel_uc.h @@ -210,6 +210,9 @@ struct intel_guc { /* GuC's FW specific send function */ int (*send)(struct intel_guc *guc, const u32 *data, u32 len); + + /* GuC's FW specific notify function */ + void (*notify)(struct intel_guc *guc); }; struct intel_huc { @@ -229,11 +232,17 @@ void intel_uc_fini_hw(struct drm_i915_private *dev_priv); int intel_guc_sample_forcewake(struct intel_guc *guc); int intel_guc_send_nop(struct intel_guc *guc, const u32 *action, u32 len); int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32 len); + static inline int intel_guc_send(struct intel_guc *guc, const u32 *action, u32 len) { return guc->send(guc, action, len); } +static inline void intel_guc_notify(struct intel_guc *guc) +{ + guc->notify(guc); +} + /* intel_guc_loader.c */ int intel_guc_select_fw(struct intel_guc *guc); int intel_guc_init_hw(struct intel_guc *guc); -- 2.7.4