@@ -529,8 +529,8 @@ static int ctch_send(struct intel_guc_ct *ct,
/*
* Command Transport (CT) buffer based GuC send function.
*/
-static int intel_guc_send_ct(struct intel_guc *guc, const u32 *action, u32 len,
- u32 *response_buf, u32 response_buf_size)
+int intel_guc_send_ct(struct intel_guc *guc, const u32 *action, u32 len,
+ u32 *response_buf, u32 response_buf_size)
{
struct intel_guc_ct *ct = &guc->ct;
struct intel_guc_ct_channel *ctch = &ct->host_channel;
@@ -834,7 +834,7 @@ static void ct_process_host_channel(struct intel_guc_ct *ct)
* When we're communicating with the GuC over CT, GuC uses events
* to notify us about new messages being posted on the RECV buffer.
*/
-static void intel_guc_to_host_event_handler_ct(struct intel_guc *guc)
+void intel_guc_to_host_event_handler_ct(struct intel_guc *guc)
{
struct intel_guc_ct *ct = &guc->ct;
@@ -892,20 +892,11 @@ int intel_guc_ct_enable(struct intel_guc_ct *ct)
{
struct intel_guc *guc = ct_to_guc(ct);
struct intel_guc_ct_channel *ctch = &ct->host_channel;
- int err;
if (ctch->enabled)
return 0;
- err = ctch_enable(guc, ctch);
- if (unlikely(err))
- return err;
-
- /* Switch into cmd transport buffer based send() */
- guc->send = intel_guc_send_ct;
- guc->handler = intel_guc_to_host_event_handler_ct;
- DRM_INFO("CT: %s\n", enableddisabled(true));
- return 0;
+ return ctch_enable(guc, ctch);
}
/**
@@ -921,9 +912,4 @@ void intel_guc_ct_disable(struct intel_guc_ct *ct)
return;
ctch_disable(guc, ctch);
-
- /* Disable send */
- guc->send = intel_guc_send_nop;
- guc->handler = intel_guc_to_host_event_handler_nop;
- DRM_INFO("CT: %s\n", enableddisabled(false));
}
@@ -101,4 +101,8 @@ static inline void intel_guc_ct_stop(struct intel_guc_ct *ct)
ct->host_channel.enabled = false;
}
+int intel_guc_send_ct(struct intel_guc *guc, const u32 *action, u32 len,
+ u32 *response_buf, u32 response_buf_size);
+void intel_guc_to_host_event_handler_ct(struct intel_guc *guc);
+
#endif /* _INTEL_GUC_CT_H_ */
@@ -235,9 +235,20 @@ static void guc_disable_interrupts(struct intel_guc *guc)
static int guc_enable_communication(struct intel_guc *guc)
{
+ int ret;
+
+ ret = intel_guc_ct_enable(&guc->ct);
+ if (ret)
+ return ret;
+
+ guc->send = intel_guc_send_ct;
+ guc->handler = intel_guc_to_host_event_handler_ct;
+
guc_enable_interrupts(guc);
- return intel_guc_ct_enable(&guc->ct);
+ DRM_INFO("GuC communication enabled\n");
+
+ return 0;
}
static void guc_stop_communication(struct intel_guc *guc)
@@ -250,12 +261,14 @@ static void guc_stop_communication(struct intel_guc *guc)
static void guc_disable_communication(struct intel_guc *guc)
{
- intel_guc_ct_disable(&guc->ct);
-
guc_disable_interrupts(guc);
guc->send = intel_guc_send_nop;
guc->handler = intel_guc_to_host_event_handler_nop;
+
+ intel_guc_ct_disable(&guc->ct);
+
+ DRM_INFO("GuC communication disabled\n");
}
int intel_uc_init_misc(struct drm_i915_private *i915)