drm/i915/gt: Pull restoration of GGTT fences underneath the GT

Make the GT responsible for restoring its fence when it wakes up from
suspend.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200316113846.4974-2-chris@chris-wilson.co.uk

diff --git a/drivers/gpu/drm/i915/gt/intel_ggtt.c b/drivers/gpu/drm/i915/gt/intel_ggtt.c
index a7b72fa..bde4f64 100644 (file)
--- a/drivers/gpu/drm/i915/gt/intel_ggtt.c
+++ b/drivers/gpu/drm/i915/gt/intel_ggtt.c
@@ -1195,6 +1195,8 @@ void i915_ggtt_resume(struct i915_ggtt *ggtt)
 
        if (INTEL_GEN(ggtt->vm.i915) >= 8)
                setup_private_pat(ggtt->vm.gt->uncore);
+
+       intel_ggtt_restore_fences(ggtt);
 }
 
 static struct scatterlist *

diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm.c b/drivers/gpu/drm/i915/gt/intel_gt_pm.c
index 8b653c0..2e40400 100644 (file)
--- a/drivers/gpu/drm/i915/gt/intel_gt_pm.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt_pm.c
@@ -324,6 +324,7 @@ int intel_gt_runtime_resume(struct intel_gt *gt)
 {
        GT_TRACE(gt, "\n");
        intel_gt_init_swizzling(gt);
+       intel_ggtt_restore_fences(gt->ggtt);
 
        return intel_uc_runtime_resume(&gt->uc);
 }

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 9327d56..265a9df 100644 (file)
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -1288,7 +1288,6 @@ static int i915_drm_resume(struct drm_device *dev)
                drm_err(&dev_priv->drm, "failed to re-enable GGTT\n");
 
        i915_ggtt_resume(&dev_priv->ggtt);
-       intel_ggtt_restore_fences(&dev_priv->ggtt);
 
        intel_csr_ucode_resume(dev_priv);
 
@@ -1606,8 +1605,6 @@ static int intel_runtime_suspend(struct device *kdev)
 
                intel_gt_runtime_resume(&dev_priv->gt);
 
-               intel_ggtt_restore_fences(&dev_priv->ggtt);
-
                enable_rpm_wakeref_asserts(rpm);
 
                return ret;
@@ -1687,7 +1684,6 @@ static int intel_runtime_resume(struct device *kdev)
         * we can do is to hope that things will still work (and disable RPM).
         */
        intel_gt_runtime_resume(&dev_priv->gt);
-       intel_ggtt_restore_fences(&dev_priv->ggtt);
 
        /*
         * On VLV/CHV display interrupts are part of the display

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 2c53be0..762b50b 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1156,7 +1156,6 @@ err_unlock:
                /* Minimal basic recovery for KMS */
                ret = i915_ggtt_enable_hw(dev_priv);
                i915_ggtt_resume(&dev_priv->ggtt);
-               intel_ggtt_restore_fences(&dev_priv->ggtt);
                intel_init_clock_gating(dev_priv);
        }
 

diff --git a/drivers/gpu/drm/i915/selftests/i915_gem.c b/drivers/gpu/drm/i915/selftests/i915_gem.c
index 7ea517a..88d400b 100644 (file)
--- a/drivers/gpu/drm/i915/selftests/i915_gem.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem.c
@@ -125,8 +125,6 @@ static void pm_resume(struct drm_i915_private *i915)
         */
        with_intel_runtime_pm(&i915->runtime_pm, wakeref) {
                i915_ggtt_resume(&i915->ggtt);
-               intel_ggtt_restore_fences(&i915->ggtt);
-
                i915_gem_resume(i915);
        }
 }