Apart from configuring interrupts, we need to update the ggtt invalidate
interface and GuC communication on suspend. This functionality can be
reused for other suspend and reset paths.
v2: Rebase w.r.t removal of GuC code restructuring.
v3: Removed GuC specific helpers as tasks other than send H2G for
sleep/resume are to be done from uc generic functions. (Michal)
Cc: Michal Wajdeczko <michal.wajdeczko@xxxxxxxxx>
Cc: Michał Winiarski <michal.winiarski@xxxxxxxxx>
Signed-off-by: Sagar Arun Kamble <sagar.a.kamble@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_guc_submission.c | 5 ----
drivers/gpu/drm/i915/intel_uc.c | 39 ++++++++++++++++++++++++++++--
2 files changed, 37 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_guc_submission.c b/drivers/gpu/drm/i915/i915_guc_submission.c
index e191d56..cd5ef8b 100644
--- a/drivers/gpu/drm/i915/i915_guc_submission.c
+++ b/drivers/gpu/drm/i915/i915_guc_submission.c
@@ -1219,8 +1219,6 @@ int intel_guc_suspend(struct drm_i915_private *dev_priv)
if (guc->fw.load_status != INTEL_UC_FIRMWARE_SUCCESS)
return 0;
- gen9_disable_guc_interrupts(dev_priv);
-
ctx = dev_priv->kernel_context;
data[0] = INTEL_GUC_ACTION_ENTER_S_STATE;
@@ -1245,9 +1243,6 @@ int intel_guc_resume(struct drm_i915_private *dev_priv)
if (guc->fw.load_status != INTEL_UC_FIRMWARE_SUCCESS)
return 0;
- if (i915.guc_log_level >= 0)
- gen9_enable_guc_interrupts(dev_priv);
-
ctx = dev_priv->kernel_context;
data[0] = INTEL_GUC_ACTION_EXIT_S_STATE;
diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c
index 8e4d8b0..66d2cff 100644
--- a/drivers/gpu/drm/i915/intel_uc.c
+++ b/drivers/gpu/drm/i915/intel_uc.c
@@ -540,12 +540,47 @@ int intel_guc_sample_forcewake(struct intel_guc *guc)
int intel_uc_runtime_suspend(struct drm_i915_private *dev_priv)
{
- return intel_guc_suspend(dev_priv);
+ int ret;
+
+ if (!i915.enable_guc_loading)
+ return 0;
+
+ ret = intel_guc_suspend(dev_priv);
+ if (ret) {
+ DRM_ERROR("GuC runtime suspend failed (%d)\n", ret);
+ return ret;
+ }
+
+ i915_ggtt_disable_guc(dev_priv);
+ gen9_disable_guc_interrupts(dev_priv);
+ guc_disable_communication(&dev_priv->guc);
+
+ return 0;
}
int intel_uc_runtime_resume(struct drm_i915_private *dev_priv)
{
- return intel_guc_resume(dev_priv);
+ int ret;
+
+ if (!i915.enable_guc_loading)
+ return 0;
+
+ ret = guc_enable_communication(&dev_priv->guc);
+ if (ret) {
+ DRM_ERROR("GuC enable communication failed (%d)\n", ret);
+ return ret;
+ }
+ if (i915.guc_log_level >= 0)
+ gen9_enable_guc_interrupts(dev_priv);
+ i915_ggtt_enable_guc(dev_priv);
+
+ ret = intel_guc_resume(dev_priv);
+ if (ret) {
+ DRM_ERROR("GuC runtime resume failed (%d)\n", ret);
+ return ret;
+ }
+
+ return 0;
}
int intel_uc_suspend(struct drm_i915_private *dev_priv)
--
1.9.1
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