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drm/i915/guc: Move notification code into virtual function

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Prepare for alternate GuC notification mechanism.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
[Joonas: Added newlines]
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
This commit is contained in:
Michal Wajdeczko 2017-05-10 12:59:26 +00:00 committed by Joonas Lahtinen
parent eb8bc8dcc5
commit a03aac442d
2 changed files with 18 additions and 1 deletions
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10
drivers/gpu/drm/i915/intel_uc.c
View File

@ -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.

9
drivers/gpu/drm/i915/intel_uc.h
View File

@ -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);