@@ -1684,6 +1684,11 @@ static int i915_drm_resume(struct drm_device *dev)
drm_mode_config_reset(dev);
+ /*
+ * NB: Full gem reinitialization is being done during i915_drm_resume,
+ * hence intel_guc_system_resume will be of no use. If full
+ * reinitialization is avoided, need to call intel_guc_system_resume.
+ */
mutex_lock(&dev->struct_mutex);
if (i915_gem_init_hw(dev_priv)) {
DRM_ERROR("failed to re-initialize GPU, declaring wedged!\n");
@@ -1691,8 +1696,6 @@ static int i915_drm_resume(struct drm_device *dev)
}
mutex_unlock(&dev->struct_mutex);
- intel_guc_resume(&dev_priv->guc);
-
intel_modeset_init_hw(dev);
spin_lock_irq(&dev_priv->irq_lock);
@@ -2493,7 +2496,7 @@ static int intel_runtime_suspend(struct device *kdev)
*/
i915_gem_runtime_suspend(dev_priv);
- intel_guc_suspend(&dev_priv->guc);
+ intel_uc_runtime_suspend(dev_priv);
intel_runtime_pm_disable_interrupts(dev_priv);
@@ -2578,7 +2581,7 @@ static int intel_runtime_resume(struct device *kdev)
if (intel_uncore_unclaimed_mmio(dev_priv))
DRM_DEBUG_DRIVER("Unclaimed access during suspend, bios?\n");
- intel_guc_resume(&dev_priv->guc);
+ intel_uc_runtime_resume(dev_priv);
if (IS_GEN9_LP(dev_priv)) {
bxt_disable_dc9(dev_priv);
@@ -2847,6 +2847,8 @@ int i915_gem_reset_prepare(struct drm_i915_private *dev_priv)
i915_gem_revoke_fences(dev_priv);
+ intel_uc_reset_prepare(dev_priv);
+
return err;
}
@@ -4575,7 +4577,7 @@ int i915_gem_suspend(struct drm_i915_private *dev_priv)
i915_gem_contexts_lost(dev_priv);
mutex_unlock(&dev->struct_mutex);
- intel_guc_suspend(&dev_priv->guc);
+ intel_uc_system_suspend(dev_priv);
cancel_delayed_work_sync(&dev_priv->gpu_error.hangcheck_work);
cancel_delayed_work_sync(&dev_priv->gt.retire_work);
@@ -1206,53 +1206,3 @@ void i915_guc_submission_disable(struct drm_i915_private *dev_priv)
guc_client_free(guc->execbuf_client);
guc->execbuf_client = NULL;
}
-
-/**
- * intel_guc_suspend() - notify GuC entering suspend state
- */
-int intel_guc_suspend(struct intel_guc *guc)
-{
- struct drm_i915_private *dev_priv = guc_to_i915(guc);
- struct i915_gem_context *ctx;
- u32 data[3];
-
- 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;
- /* any value greater than GUC_POWER_D0 */
- data[1] = GUC_POWER_D1;
- /* first page is shared data with GuC */
- data[2] = guc_ggtt_offset(ctx->engine[RCS].state) + LRC_GUCSHR_PN * PAGE_SIZE;
-
- return intel_guc_send(guc, data, ARRAY_SIZE(data));
-}
-
-/**
- * intel_guc_resume() - notify GuC resuming from suspend state
- */
-int intel_guc_resume(struct intel_guc *guc)
-{
- struct drm_i915_private *dev_priv = guc_to_i915(guc);
- struct i915_gem_context *ctx;
- u32 data[3];
-
- 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;
- data[1] = GUC_POWER_D0;
- /* first page is shared data with GuC */
- data[2] = guc_ggtt_offset(ctx->engine[RCS].state) + LRC_GUCSHR_PN * PAGE_SIZE;
-
- return intel_guc_send(guc, data, ARRAY_SIZE(data));
-}
@@ -164,3 +164,132 @@ int intel_guc_auth_huc(struct intel_guc *guc, u32 rsa_offset)
return intel_guc_send(guc, data, ARRAY_SIZE(data));
}
+
+/**
+ * intel_guc_suspend() - notify GuC entering suspend state
+ */
+static int intel_guc_suspend(struct intel_guc *guc)
+{
+ struct drm_i915_private *dev_priv = guc_to_i915(guc);
+ struct i915_gem_context *ctx;
+ u32 data[3];
+
+ if (guc->fw.load_status != INTEL_UC_FIRMWARE_SUCCESS)
+ return 0;
+
+ ctx = dev_priv->kernel_context;
+
+ data[0] = INTEL_GUC_ACTION_ENTER_S_STATE;
+ /* any value greater than GUC_POWER_D0 */
+ data[1] = GUC_POWER_D1;
+ /* first page is shared data with GuC */
+ data[2] = guc_ggtt_offset(ctx->engine[RCS].state);
+
+ return intel_guc_send(guc, data, ARRAY_SIZE(data));
+}
+
+/**
+ * intel_guc_resume() - notify GuC resuming from suspend state
+ */
+static int intel_guc_resume(struct intel_guc *guc)
+{
+ struct drm_i915_private *dev_priv = guc_to_i915(guc);
+ struct i915_gem_context *ctx;
+ u32 data[3];
+
+ if (guc->fw.load_status != INTEL_UC_FIRMWARE_SUCCESS)
+ return 0;
+
+ ctx = dev_priv->kernel_context;
+
+ data[0] = INTEL_GUC_ACTION_EXIT_S_STATE;
+ data[1] = GUC_POWER_D0;
+ /* first page is shared data with GuC */
+ data[2] = guc_ggtt_offset(ctx->engine[RCS].state);
+
+ return intel_guc_send(guc, data, ARRAY_SIZE(data));
+}
+
+static void intel_guc_sanitize(struct intel_guc *guc)
+{
+ struct drm_i915_private *dev_priv = guc_to_i915(guc);
+
+ i915_ggtt_disable_guc(dev_priv);
+ gen9_disable_guc_interrupts(dev_priv);
+}
+
+void intel_guc_reset_prepare(struct intel_guc *guc)
+{
+ if (!i915.enable_guc_loading)
+ return;
+
+ intel_guc_sanitize(guc);
+ guc->fw.load_status = INTEL_UC_FIRMWARE_PENDING;
+}
+
+static int intel_guc_pause(struct intel_guc *guc)
+{
+ int ret = 0;
+
+ ret = intel_guc_suspend(guc);
+ intel_guc_sanitize(guc);
+
+ return ret;
+}
+
+static int intel_guc_unpause(struct intel_guc *guc)
+{
+ struct drm_i915_private *dev_priv = guc_to_i915(guc);
+ int ret = 0;
+
+ if (i915.guc_log_level >= 0)
+ gen9_enable_guc_interrupts(dev_priv);
+ i915_ggtt_enable_guc(dev_priv);
+ ret = intel_guc_resume(guc);
+
+ return ret;
+}
+
+int intel_guc_runtime_suspend(struct intel_guc *guc)
+{
+ if (!i915.enable_guc_loading)
+ return 0;
+
+ return intel_guc_pause(guc);
+}
+
+int intel_guc_runtime_resume(struct intel_guc *guc)
+{
+ if (!i915.enable_guc_loading)
+ return 0;
+
+ return intel_guc_unpause(guc);
+}
+
+int intel_guc_system_suspend(struct intel_guc *guc)
+{
+ int ret = 0;
+
+ if (!i915.enable_guc_loading)
+ return ret;
+
+ ret = intel_guc_pause(guc);
+ guc->fw.load_status = INTEL_UC_FIRMWARE_PENDING;
+
+ return ret;
+}
+
+int intel_guc_system_resume(struct intel_guc *guc)
+{
+ int ret = 0;
+
+ if (!i915.enable_guc_loading)
+ return ret;
+
+ /*
+ * Placeholder for GuC resume from system suspend/freeze states.
+ * Currently full reinitialization of GEM and GuC happens along
+ * these paths, Hence this function is doing nothing.
+ */
+ return ret;
+}
@@ -148,6 +148,11 @@ static inline u32 guc_ggtt_offset(struct i915_vma *vma)
int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32 len);
int intel_guc_sample_forcewake(struct intel_guc *guc);
int intel_guc_auth_huc(struct intel_guc *guc, u32 rsa_offset);
+void intel_guc_reset_prepare(struct intel_guc *guc);
+int intel_guc_runtime_suspend(struct intel_guc *guc);
+int intel_guc_runtime_resume(struct intel_guc *guc);
+int intel_guc_system_suspend(struct intel_guc *guc);
+int intel_guc_system_resume(struct intel_guc *guc);
/* intel_guc_loader.c */
int intel_guc_select_fw(struct intel_guc *guc);
@@ -160,8 +165,6 @@ static inline u32 guc_ggtt_offset(struct i915_vma *vma)
void i915_guc_submission_disable(struct drm_i915_private *dev_priv);
void i915_guc_submission_fini(struct drm_i915_private *dev_priv);
struct i915_vma *intel_guc_allocate_vma(struct intel_guc *guc, u32 size);
-int intel_guc_suspend(struct intel_guc *guc);
-int intel_guc_resume(struct intel_guc *guc);
/* intel_guc_log.c */
int intel_guc_log_create(struct intel_guc *guc);
@@ -421,3 +421,33 @@ void intel_uc_fini_hw(struct drm_i915_private *dev_priv)
i915_ggtt_disable_guc(dev_priv);
}
+
+void intel_uc_reset_prepare(struct drm_i915_private *dev_priv)
+{
+ intel_guc_reset_prepare(&dev_priv->guc);
+ guc_disable_communication(&dev_priv->guc);
+}
+
+void intel_uc_runtime_suspend(struct drm_i915_private *dev_priv)
+{
+ intel_guc_runtime_suspend(&dev_priv->guc);
+ guc_disable_communication(&dev_priv->guc);
+}
+
+int intel_uc_runtime_resume(struct drm_i915_private *dev_priv)
+{
+ intel_guc_runtime_resume(&dev_priv->guc);
+ return guc_enable_communication(&dev_priv->guc);
+}
+
+void intel_uc_system_suspend(struct drm_i915_private *dev_priv)
+{
+ intel_guc_system_suspend(&dev_priv->guc);
+ guc_disable_communication(&dev_priv->guc);
+}
+
+int intel_uc_system_resume(struct drm_i915_private *dev_priv)
+{
+ intel_guc_system_resume(&dev_priv->guc);
+ return guc_enable_communication(&dev_priv->guc);
+}
@@ -105,5 +105,10 @@ struct intel_uc_fw {
void intel_uc_fini_fw(struct drm_i915_private *dev_priv);
int intel_uc_init_hw(struct drm_i915_private *dev_priv);
void intel_uc_fini_hw(struct drm_i915_private *dev_priv);
+void intel_uc_reset_prepare(struct drm_i915_private *dev_priv);
+void intel_uc_runtime_suspend(struct drm_i915_private *dev_priv);
+int intel_uc_runtime_resume(struct drm_i915_private *dev_priv);
+void intel_uc_system_suspend(struct drm_i915_private *dev_priv);
+int intel_uc_system_resume(struct drm_i915_private *dev_priv);
#endif
guc_ggtt_invalidate/guc_interrupts should be disabled towards end of reset/suspend post GuC suspension as these are setup back again during recovery/resume. Prepared helpers intel_guc_pause and intel_guc_unpause that will do teardown/bringup of this setup along with suspension/resumption of GuC if loaded. These helpers can then be used along the system or runtime suspend/resume paths as applicable. Currently post system resume, since GuC is loaded completely system_resume function for GuC is doing nothing. We rely on the setup happening in intel_uc_init_hw path. During runtime_suspend we will call intel_guc_pause helper. Another helper added is intel_guc_reset_prepare, this will make sure that disabling of ggtt_invalidate and GuC interrupts happens prior to reset and updates the firmware load status to PENDING. v2: Updated commit message. Added note about skipped call to intel_guc_system_resume. guc_enable/disable_communication was moved to earlier patch so corresponding rebase. (Michal Wajdeczko) v3: Introduction of intel_uc_runtime/system_suspend/resume. Updated changes for enable/disable_communication. Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Michał Winiarski <michal.winiarski@intel.com> Signed-off-by: Sagar Arun Kamble <sagar.a.kamble@intel.com> --- drivers/gpu/drm/i915/i915_drv.c | 11 ++- drivers/gpu/drm/i915/i915_gem.c | 4 +- drivers/gpu/drm/i915/i915_guc_submission.c | 50 ----------- drivers/gpu/drm/i915/intel_guc.c | 129 +++++++++++++++++++++++++++++ drivers/gpu/drm/i915/intel_guc.h | 7 +- drivers/gpu/drm/i915/intel_uc.c | 30 +++++++ drivers/gpu/drm/i915/intel_uc.h | 5 ++ 7 files changed, 179 insertions(+), 57 deletions(-)