disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/gpu/arm/bifrost/mali_kbase_pm.c
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@@ -1,7 +1,7 @@
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 // SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
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 /*
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  *
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- * (C) COPYRIGHT 2010-2021 ARM Limited. All rights reserved.
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+ * (C) COPYRIGHT 2010-2022 ARM Limited. All rights reserved.
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  *
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  * This program is free software and is provided to you under the terms of the
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  * GNU General Public License version 2 as published by the Free Software
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@@ -26,7 +26,8 @@
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 #include <mali_kbase.h>
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 #include <gpu/mali_kbase_gpu_regmap.h>
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 #include <mali_kbase_vinstr.h>
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-#include <mali_kbase_hwcnt_context.h>
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+#include <mali_kbase_kinstr_prfcnt.h>
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+#include <hwcnt/mali_kbase_hwcnt_context.h>
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 #include <mali_kbase_pm.h>
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 #include <backend/gpu/mali_kbase_pm_internal.h>
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@@ -76,13 +77,13 @@
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 		case KBASE_PM_SUSPEND_HANDLER_DONT_REACTIVATE:
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 			if (kbdev->pm.active_count != 0)
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 				break;
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-			/* FALLTHROUGH */
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+			fallthrough;
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 		case KBASE_PM_SUSPEND_HANDLER_DONT_INCREASE:
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 			kbase_pm_unlock(kbdev);
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 			return 1;
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 		case KBASE_PM_SUSPEND_HANDLER_NOT_POSSIBLE:
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-			/* FALLTHROUGH */
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+			fallthrough;
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 		default:
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 			KBASE_DEBUG_ASSERT_MSG(false, "unreachable");
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 			break;
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@@ -143,14 +144,15 @@
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 KBASE_EXPORT_TEST_API(kbase_pm_context_idle);
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-void kbase_pm_driver_suspend(struct kbase_device *kbdev)
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+int kbase_pm_driver_suspend(struct kbase_device *kbdev)
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 {
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 	KBASE_DEBUG_ASSERT(kbdev);
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-	/* Suspend vinstr. This blocks until the vinstr worker and timer are
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-	 * no longer running.
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+	/* Suspend HW counter intermediaries. This blocks until workers and timers
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+	 * are no longer running.
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 	 */
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 	kbase_vinstr_suspend(kbdev->vinstr_ctx);
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+	kbase_kinstr_prfcnt_suspend(kbdev->kinstr_prfcnt_ctx);
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 	/* Disable GPU hardware counters.
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 	 * This call will block until counters are disabled.
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@@ -160,7 +162,7 @@
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 	mutex_lock(&kbdev->pm.lock);
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 	if (WARN_ON(kbase_pm_is_suspending(kbdev))) {
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 		mutex_unlock(&kbdev->pm.lock);
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-		return;
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+		return 0;
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 	}
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 	kbdev->pm.suspending = true;
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 	mutex_unlock(&kbdev->pm.lock);
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@@ -191,7 +193,12 @@
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 	 */
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 	kbasep_js_suspend(kbdev);
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 #else
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-	kbase_csf_scheduler_pm_suspend(kbdev);
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+	if (kbase_csf_scheduler_pm_suspend(kbdev)) {
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+		mutex_lock(&kbdev->pm.lock);
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+		kbdev->pm.suspending = false;
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+		mutex_unlock(&kbdev->pm.lock);
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+		return -1;
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+	}
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 #endif
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 	/* Wait for the active count to reach zero. This is not the same as
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@@ -207,7 +214,12 @@
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 	/* NOTE: We synchronize with anything that was just finishing a
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 	 * kbase_pm_context_idle() call by locking the pm.lock below
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 	 */
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-	kbase_hwaccess_pm_suspend(kbdev);
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+	if (kbase_hwaccess_pm_suspend(kbdev)) {
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+		mutex_lock(&kbdev->pm.lock);
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+		kbdev->pm.suspending = false;
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+		mutex_unlock(&kbdev->pm.lock);
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+		return -1;
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+	}
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 #ifdef CONFIG_MALI_ARBITER_SUPPORT
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 	if (kbdev->arb.arb_if) {
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@@ -216,6 +228,8 @@
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 		mutex_unlock(&kbdev->pm.arb_vm_state->vm_state_lock);
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 	}
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 #endif /* CONFIG_MALI_ARBITER_SUPPORT */
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+
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+	return 0;
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 }
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 void kbase_pm_driver_resume(struct kbase_device *kbdev, bool arb_gpu_start)
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@@ -246,8 +260,6 @@
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 	 * atoms
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 	 */
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 	kbasep_js_resume(kbdev);
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-#else
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-	kbase_csf_scheduler_pm_resume(kbdev);
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 #endif
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 	/* Matching idle call, to power off the GPU/cores if we didn't actually
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@@ -266,20 +278,24 @@
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 	spin_unlock_irqrestore(&kbdev->hwaccess_lock, flags);
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 #endif
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-	/* Resume vinstr */
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+	/* Resume HW counters intermediaries. */
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 	kbase_vinstr_resume(kbdev->vinstr_ctx);
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+	kbase_kinstr_prfcnt_resume(kbdev->kinstr_prfcnt_ctx);
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 }
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-void kbase_pm_suspend(struct kbase_device *kbdev)
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+int kbase_pm_suspend(struct kbase_device *kbdev)
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 {
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+	int result = 0;
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 #ifdef CONFIG_MALI_ARBITER_SUPPORT
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 	if (kbdev->arb.arb_if)
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 		kbase_arbiter_pm_vm_event(kbdev, KBASE_VM_OS_SUSPEND_EVENT);
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 	else
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-		kbase_pm_driver_suspend(kbdev);
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+		result = kbase_pm_driver_suspend(kbdev);
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 #else
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-	kbase_pm_driver_suspend(kbdev);
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+	result = kbase_pm_driver_suspend(kbdev);
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 #endif /* CONFIG_MALI_ARBITER_SUPPORT */
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+
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+	return result;
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 }
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 void kbase_pm_resume(struct kbase_device *kbdev)