drm/i915: Toggle binder context ready status

Toggle binder context ready status when needed.

To issue gpu commands, the driver must be primed to receive
requests. Maintain binder-based GGTT update disablement until driver
probing completes. Moreover, implement a temporary disablement
of blitter prior to entering suspend, followed by re-enablement
post-resume. This is acceptable as those transition periods are
mostly single threaded.

v2: move changes to lower levels from i915_driver.c(Jani).
    use new function for setting context ready status.

Signed-off-by: Nirmoy Das <nirmoy.das@intel.com>
Signed-off-by: Oak Zeng <oak.zeng@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230926083742.14740-7-nirmoy.das@intel.com

diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm.c b/drivers/gpu/drm/i915/gt/intel_gt_pm.c
index 3461f3e742778336e8ff4aa5fdf9d5adfe3daed1..f5899d503e234b30e884a0b30b710e7483de6e44 100644 (file)
--- a/drivers/gpu/drm/i915/gt/intel_gt_pm.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt_pm.c
@@ -296,6 +296,7 @@ int intel_gt_resume(struct intel_gt *gt)
 out_fw:
        intel_uncore_forcewake_put(gt->uncore, FORCEWAKE_ALL);
        intel_gt_pm_put(gt);
+       intel_gt_bind_context_set_ready(gt);
        return err;
 
 err_wedged:
@@ -322,6 +323,7 @@ static void wait_for_suspend(struct intel_gt *gt)
 
 void intel_gt_suspend_prepare(struct intel_gt *gt)
 {
+       intel_gt_bind_context_set_unready(gt);
        user_forcewake(gt, true);
        wait_for_suspend(gt);
 }
@@ -375,6 +377,7 @@ void intel_gt_suspend_late(struct intel_gt *gt)
 
 void intel_gt_runtime_suspend(struct intel_gt *gt)
 {
+       intel_gt_bind_context_set_unready(gt);
        intel_uc_runtime_suspend(&gt->uc);
 
        GT_TRACE(gt, "\n");
@@ -392,6 +395,7 @@ int intel_gt_runtime_resume(struct intel_gt *gt)
        if (ret)
                return ret;
 
+       intel_gt_bind_context_set_ready(gt);
        return 0;
 }