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drm/i915: Toggle binder context ready status

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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
This commit is contained in:
Nirmoy Das 2023-09-26 10:37:41 +02:00
parent 8a7f77faba
commit a2ae296292
1 changed files with 4 additions and 0 deletions

4
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;
}