@@ -64,7 +64,6 @@
#include "gem/i915_gem_mman.h"
#include "gem/i915_gem_pm.h"
#include "gt/intel_gt.h"
-#include "gt/intel_gt_pm.h"
#include "gt/intel_rc6.h"
#include "i915_debugfs.h"
@@ -1517,144 +1516,24 @@ static int i915_pm_restore(struct device *kdev)
return i915_pm_resume(kdev);
}
-static int intel_runtime_suspend(struct device *kdev)
+static int i915_runtime_suspend(struct device *kdev)
{
- struct drm_i915_private *dev_priv = kdev_to_i915(kdev);
- struct intel_runtime_pm *rpm = &dev_priv->runtime_pm;
- int ret;
+ struct drm_i915_private *i915 = kdev_to_i915(kdev);
- if (drm_WARN_ON_ONCE(&dev_priv->drm, !HAS_RUNTIME_PM(dev_priv)))
+ if (drm_WARN_ON_ONCE(&i915->drm, !HAS_RUNTIME_PM(i915)))
return -ENODEV;
- drm_dbg_kms(&dev_priv->drm, "Suspending device\n");
-
- disable_rpm_wakeref_asserts(rpm);
-
- /*
- * We are safe here against re-faults, since the fault handler takes
- * an RPM reference.
- */
- i915_gem_runtime_suspend(dev_priv);
-
- intel_gt_runtime_suspend(&dev_priv->gt);
-
- intel_runtime_pm_disable_interrupts(dev_priv);
-
- intel_uncore_suspend(&dev_priv->uncore);
-
- intel_display_power_suspend(dev_priv);
-
- ret = vlv_suspend_complete(dev_priv);
- if (ret) {
- drm_err(&dev_priv->drm,
- "Runtime suspend failed, disabling it (%d)\n", ret);
- intel_uncore_runtime_resume(&dev_priv->uncore);
-
- intel_runtime_pm_enable_interrupts(dev_priv);
-
- intel_gt_runtime_resume(&dev_priv->gt);
-
- enable_rpm_wakeref_asserts(rpm);
-
- return ret;
- }
-
- enable_rpm_wakeref_asserts(rpm);
- intel_runtime_pm_driver_release(rpm);
-
- if (intel_uncore_arm_unclaimed_mmio_detection(&dev_priv->uncore))
- drm_err(&dev_priv->drm,
- "Unclaimed access detected prior to suspending\n");
-
- rpm->suspended = true;
-
- /*
- * FIXME: We really should find a document that references the arguments
- * used below!
- */
- if (IS_BROADWELL(dev_priv)) {
- /*
- * On Broadwell, if we use PCI_D1 the PCH DDI ports will stop
- * being detected, and the call we do at intel_runtime_resume()
- * won't be able to restore them. Since PCI_D3hot matches the
- * actual specification and appears to be working, use it.
- */
- intel_opregion_notify_adapter(dev_priv, PCI_D3hot);
- } else {
- /*
- * current versions of firmware which depend on this opregion
- * notification have repurposed the D1 definition to mean
- * "runtime suspended" vs. what you would normally expect (D3)
- * to distinguish it from notifications that might be sent via
- * the suspend path.
- */
- intel_opregion_notify_adapter(dev_priv, PCI_D1);
- }
-
- assert_forcewakes_inactive(&dev_priv->uncore);
-
- if (!IS_VALLEYVIEW(dev_priv) && !IS_CHERRYVIEW(dev_priv))
- intel_hpd_poll_enable(dev_priv);
-
- drm_dbg_kms(&dev_priv->drm, "Device suspended\n");
- return 0;
+ return intel_runtime_pm_suspend(&i915->runtime_pm);
}
-static int intel_runtime_resume(struct device *kdev)
+static int i915_runtime_resume(struct device *kdev)
{
- struct drm_i915_private *dev_priv = kdev_to_i915(kdev);
- struct intel_runtime_pm *rpm = &dev_priv->runtime_pm;
- int ret;
+ struct drm_i915_private *i915 = kdev_to_i915(kdev);
- if (drm_WARN_ON_ONCE(&dev_priv->drm, !HAS_RUNTIME_PM(dev_priv)))
+ if (drm_WARN_ON_ONCE(&i915->drm, !HAS_RUNTIME_PM(i915)))
return -ENODEV;
- drm_dbg_kms(&dev_priv->drm, "Resuming device\n");
-
- drm_WARN_ON_ONCE(&dev_priv->drm, atomic_read(&rpm->wakeref_count));
- disable_rpm_wakeref_asserts(rpm);
-
- intel_opregion_notify_adapter(dev_priv, PCI_D0);
- rpm->suspended = false;
- if (intel_uncore_unclaimed_mmio(&dev_priv->uncore))
- drm_dbg(&dev_priv->drm,
- "Unclaimed access during suspend, bios?\n");
-
- intel_display_power_resume(dev_priv);
-
- ret = vlv_resume_prepare(dev_priv, true);
-
- intel_uncore_runtime_resume(&dev_priv->uncore);
-
- intel_runtime_pm_enable_interrupts(dev_priv);
-
- /*
- * No point of rolling back things in case of an error, as the best
- * we can do is to hope that things will still work (and disable RPM).
- */
- intel_gt_runtime_resume(&dev_priv->gt);
-
- /*
- * On VLV/CHV display interrupts are part of the display
- * power well, so hpd is reinitialized from there. For
- * everyone else do it here.
- */
- if (!IS_VALLEYVIEW(dev_priv) && !IS_CHERRYVIEW(dev_priv)) {
- intel_hpd_init(dev_priv);
- intel_hpd_poll_disable(dev_priv);
- }
-
- intel_enable_ipc(dev_priv);
-
- enable_rpm_wakeref_asserts(rpm);
-
- if (ret)
- drm_err(&dev_priv->drm,
- "Runtime resume failed, disabling it (%d)\n", ret);
- else
- drm_dbg_kms(&dev_priv->drm, "Device resumed\n");
-
- return ret;
+ return intel_runtime_pm_resume(&i915->runtime_pm);
}
const struct dev_pm_ops i915_pm_ops = {
@@ -1693,8 +1572,8 @@ const struct dev_pm_ops i915_pm_ops = {
.restore = i915_pm_restore,
/* S0ix (via runtime suspend) event handlers */
- .runtime_suspend = intel_runtime_suspend,
- .runtime_resume = intel_runtime_resume,
+ .runtime_suspend = i915_runtime_suspend,
+ .runtime_resume = i915_runtime_resume,
};
static const struct file_operations i915_driver_fops = {
@@ -32,6 +32,11 @@
#include "i915_drv.h"
#include "i915_trace.h"
+#include "gt/intel_gt.h"
+#include "gt/intel_gt_pm.h"
+#include "intel_pm.h"
+#include "vlv_suspend.h"
+#include "display/intel_hotplug.h"
/**
* DOC: runtime pm
@@ -652,3 +657,137 @@ void intel_runtime_pm_init_early(struct intel_runtime_pm *rpm)
init_intel_runtime_pm_wakeref(rpm);
}
+
+int intel_runtime_pm_suspend(struct intel_runtime_pm *rpm)
+{
+ struct drm_i915_private *i915 =
+ container_of(rpm, struct drm_i915_private, runtime_pm);
+ int ret;
+
+ drm_dbg_kms(&i915->drm, "Suspending device\n");
+
+ disable_rpm_wakeref_asserts(rpm);
+
+ /*
+ * We are safe here against re-faults, since the fault handler takes
+ * an RPM reference.
+ */
+ i915_gem_runtime_suspend(i915);
+
+ intel_gt_runtime_suspend(&i915->gt);
+
+ intel_runtime_pm_disable_interrupts(i915);
+
+ intel_uncore_suspend(&i915->uncore);
+
+ intel_display_power_suspend(i915);
+
+ ret = vlv_suspend_complete(i915);
+ if (ret) {
+ drm_err(&i915->drm,
+ "Runtime suspend failed, disabling it (%d)\n", ret);
+ intel_uncore_runtime_resume(&i915->uncore);
+
+ intel_runtime_pm_enable_interrupts(i915);
+
+ intel_gt_runtime_resume(&i915->gt);
+
+ enable_rpm_wakeref_asserts(rpm);
+
+ return ret;
+ }
+
+ enable_rpm_wakeref_asserts(rpm);
+ intel_runtime_pm_driver_release(rpm);
+
+ if (intel_uncore_arm_unclaimed_mmio_detection(&i915->uncore))
+ drm_err(&i915->drm,
+ "Unclaimed access detected prior to suspending\n");
+
+ rpm->suspended = true;
+
+ /*
+ * FIXME: We really should find a document that references the arguments
+ * used below!
+ */
+ if (IS_BROADWELL(i915)) {
+ /*
+ * On Broadwell, if we use PCI_D1 the PCH DDI ports will stop
+ * being detected, and the call we do at intel_runtime_resume()
+ * won't be able to restore them. Since PCI_D3hot matches the
+ * actual specification and appears to be working, use it.
+ */
+ intel_opregion_notify_adapter(i915, PCI_D3hot);
+ } else {
+ /*
+ * current versions of firmware which depend on this opregion
+ * notification have repurposed the D1 definition to mean
+ * "runtime suspended" vs. what you would normally expect (D3)
+ * to distinguish it from notifications that might be sent via
+ * the suspend path.
+ */
+ intel_opregion_notify_adapter(i915, PCI_D1);
+ }
+
+ assert_forcewakes_inactive(&i915->uncore);
+
+ if (!IS_VALLEYVIEW(i915) && !IS_CHERRYVIEW(i915))
+ intel_hpd_poll_enable(i915);
+
+ drm_dbg_kms(&i915->drm, "Device suspended\n");
+ return 0;
+}
+
+int intel_runtime_pm_resume(struct intel_runtime_pm *rpm)
+{
+ struct drm_i915_private *i915 =
+ container_of(rpm, struct drm_i915_private, runtime_pm);
+ int ret;
+
+ drm_dbg_kms(&i915->drm, "Resuming device\n");
+
+ drm_WARN_ON_ONCE(&i915->drm, atomic_read(&rpm->wakeref_count));
+ disable_rpm_wakeref_asserts(rpm);
+
+ intel_opregion_notify_adapter(i915, PCI_D0);
+ rpm->suspended = false;
+ if (intel_uncore_unclaimed_mmio(&i915->uncore))
+ drm_dbg(&i915->drm,
+ "Unclaimed access during suspend, bios?\n");
+
+ intel_display_power_resume(i915);
+
+ ret = vlv_resume_prepare(i915, true);
+
+ intel_uncore_runtime_resume(&i915->uncore);
+
+ intel_runtime_pm_enable_interrupts(i915);
+
+ /*
+ * No point of rolling back things in case of an error, as the best
+ * we can do is to hope that things will still work (and disable RPM).
+ */
+ intel_gt_runtime_resume(&i915->gt);
+
+ /*
+ * On VLV/CHV display interrupts are part of the display
+ * power well, so hpd is reinitialized from there. For
+ * everyone else do it here.
+ */
+ if (!IS_VALLEYVIEW(i915) && !IS_CHERRYVIEW(i915)) {
+ intel_hpd_init(i915);
+ intel_hpd_poll_disable(i915);
+ }
+
+ intel_enable_ipc(i915);
+
+ enable_rpm_wakeref_asserts(rpm);
+
+ if (ret)
+ drm_err(&i915->drm,
+ "Runtime resume failed, disabling it (%d)\n", ret);
+ else
+ drm_dbg_kms(&i915->drm, "Device resumed\n");
+
+ return ret;
+}
@@ -172,6 +172,8 @@ void intel_runtime_pm_init_early(struct intel_runtime_pm *rpm);
void intel_runtime_pm_enable(struct intel_runtime_pm *rpm);
void intel_runtime_pm_disable(struct intel_runtime_pm *rpm);
void intel_runtime_pm_driver_release(struct intel_runtime_pm *rpm);
+int intel_runtime_pm_suspend(struct intel_runtime_pm *rpm);
+int intel_runtime_pm_resume(struct intel_runtime_pm *rpm);
intel_wakeref_t intel_runtime_pm_get(struct intel_runtime_pm *rpm);
intel_wakeref_t intel_runtime_pm_get_if_in_use(struct intel_runtime_pm *rpm);
No functional changes. Just revamping the functions with s/dev_priv/i915 and consolidating along with other runtime_pm functions. Cc: Imre Deak <imre.deak@intel.com> Cc: Tilak Tangudu <tilak.tangudu@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> --- drivers/gpu/drm/i915/i915_drv.c | 141 ++---------------------- drivers/gpu/drm/i915/intel_runtime_pm.c | 139 +++++++++++++++++++++++ drivers/gpu/drm/i915/intel_runtime_pm.h | 2 + 3 files changed, 151 insertions(+), 131 deletions(-)