Merge tag 'drm-intel-fixes-2022-06-29' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

drm/i915 fixes for v5.19-rc5:
- Fix ioctl argument error return
- Fix d3cold disable to allow PCI upstream bridge D3 transition
- Fix setting cache_dirty for dma-buf objects on discrete

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/871qv7rblv.fsf@intel.com

Author: airlied

drivers/gpu/drm/i915/gem/i915_gem_context.c

@@ -933,8 +933,9 @@ static int set_proto_ctx_param(struct drm_i915_file_private *fpriv,
 	case I915_CONTEXT_PARAM_PERSISTENCE:
 		if (args->size)
 			ret = -EINVAL;
-		ret = proto_context_set_persistence(fpriv->dev_priv, pc,
-						    args->value);
+		else
+			ret = proto_context_set_persistence(fpriv->dev_priv, pc,
+							    args->value);
 		break;
 
 	case I915_CONTEXT_PARAM_PROTECTED_CONTENT:

drivers/gpu/drm/i915/gem/i915_gem_domain.c

@@ -35,12 +35,12 @@ bool i915_gem_cpu_write_needs_clflush(struct drm_i915_gem_object *obj)
 	if (obj->cache_dirty)
 		return false;
 
-	if (!(obj->cache_coherent & I915_BO_CACHE_COHERENT_FOR_WRITE))
-		return true;
-
 	if (IS_DGFX(i915))
 		return false;
 
+	if (!(obj->cache_coherent & I915_BO_CACHE_COHERENT_FOR_WRITE))
+		return true;
+
 	/* Currently in use by HW (display engine)? Keep flushed. */
 	return i915_gem_object_is_framebuffer(obj);
 }

drivers/gpu/drm/i915/i915_driver.c

@@ -530,6 +530,7 @@ static int i915_set_dma_info(struct drm_i915_private *i915)
 static int i915_driver_hw_probe(struct drm_i915_private *dev_priv)
 {
 	struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev);
+	struct pci_dev *root_pdev;
 	int ret;
 
 	if (i915_inject_probe_failure(dev_priv))
@@ -641,6 +642,15 @@ static int i915_driver_hw_probe(struct drm_i915_private *dev_priv)
 
 	intel_bw_init_hw(dev_priv);
 
+	/*
+	 * FIXME: Temporary hammer to avoid freezing the machine on our DGFX
+	 * This should be totally removed when we handle the pci states properly
+	 * on runtime PM and on s2idle cases.
+	 */
+	root_pdev = pcie_find_root_port(pdev);
+	if (root_pdev)
+		pci_d3cold_disable(root_pdev);
+
 	return 0;
 
 err_msi:
@@ -664,11 +674,16 @@ static int i915_driver_hw_probe(struct drm_i915_private *dev_priv)
 static void i915_driver_hw_remove(struct drm_i915_private *dev_priv)
 {
 	struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev);
+	struct pci_dev *root_pdev;
 
 	i915_perf_fini(dev_priv);
 
 	if (pdev->msi_enabled)
 		pci_disable_msi(pdev);
+
+	root_pdev = pcie_find_root_port(pdev);
+	if (root_pdev)
+		pci_d3cold_enable(root_pdev);
 }
 
 /**
@@ -1193,14 +1208,6 @@ static int i915_drm_suspend_late(struct drm_device *dev, bool hibernation)
 		goto out;
 	}
 
-	/*
-	 * FIXME: Temporary hammer to avoid freezing the machine on our DGFX
-	 * This should be totally removed when we handle the pci states properly
-	 * on runtime PM and on s2idle cases.
-	 */
-	if (suspend_to_idle(dev_priv))
-		pci_d3cold_disable(pdev);
-
 	pci_disable_device(pdev);
 	/*
 	 * During hibernation on some platforms the BIOS may try to access
@@ -1365,8 +1372,6 @@ static int i915_drm_resume_early(struct drm_device *dev)
 
 	pci_set_master(pdev);
 
-	pci_d3cold_enable(pdev);
-
 	disable_rpm_wakeref_asserts(&dev_priv->runtime_pm);
 
 	ret = vlv_resume_prepare(dev_priv, false);
@@ -1543,7 +1548,6 @@ static int intel_runtime_suspend(struct device *kdev)
 {
 	struct drm_i915_private *dev_priv = kdev_to_i915(kdev);
 	struct intel_runtime_pm *rpm = &dev_priv->runtime_pm;
-	struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev);
 	int ret;
 
 	if (drm_WARN_ON_ONCE(&dev_priv->drm, !HAS_RUNTIME_PM(dev_priv)))
@@ -1589,12 +1593,6 @@ static int intel_runtime_suspend(struct device *kdev)
 		drm_err(&dev_priv->drm,
 			"Unclaimed access detected prior to suspending\n");
 
-	/*
-	 * FIXME: Temporary hammer to avoid freezing the machine on our DGFX
-	 * This should be totally removed when we handle the pci states properly
-	 * on runtime PM and on s2idle cases.
-	 */
-	pci_d3cold_disable(pdev);
 	rpm->suspended = true;
 
 	/*
@@ -1633,7 +1631,6 @@ static int intel_runtime_resume(struct device *kdev)
 {
 	struct drm_i915_private *dev_priv = kdev_to_i915(kdev);
 	struct intel_runtime_pm *rpm = &dev_priv->runtime_pm;
-	struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev);
 	int ret;
 
 	if (drm_WARN_ON_ONCE(&dev_priv->drm, !HAS_RUNTIME_PM(dev_priv)))
@@ -1646,7 +1643,6 @@ static int intel_runtime_resume(struct device *kdev)
 
 	intel_opregion_notify_adapter(dev_priv, PCI_D0);
 	rpm->suspended = false;
-	pci_d3cold_enable(pdev);
 	if (intel_uncore_unclaimed_mmio(&dev_priv->uncore))
 		drm_dbg(&dev_priv->drm,
 			"Unclaimed access during suspend, bios?\n");