1 files changed, 129 insertions, 0 deletions
diff --git a/driver/product/kernel/drivers/gpu/arm/midgard/backend/gpu/mali_kbase_js_affinity.h b/driver/product/kernel/drivers/gpu/arm/midgard/backend/gpu/mali_kbase_js_affinity.h
new file mode 100755
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--- /dev/null
+++ b/driver/product/kernel/drivers/gpu/arm/midgard/backend/gpu/mali_kbase_js_affinity.h
@@ -0,0 +1,129 @@
+/*
+ *
+ * (C) COPYRIGHT 2011-2016 ARM Limited. All rights reserved.
+ *
+ * This program is free software and is provided to you under the terms of the
+ * GNU General Public License version 2 as published by the Free Software
+ * Foundation, and any use by you of this program is subject to the terms
+ * of such GNU licence.
+ *
+ * A copy of the licence is included with the program, and can also be obtained
+ * from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ *
+ */
+
+
+
+
+
+/*
+ * Affinity Manager internal APIs.
+ */
+
+#ifndef _KBASE_JS_AFFINITY_H_
+#define _KBASE_JS_AFFINITY_H_
+
+/**
+ * kbase_js_can_run_job_on_slot_no_lock - Decide whether it is possible to
+ * submit a job to a particular job slot in the current status
+ *
+ * @kbdev: The kbase device structure of the device
+ * @js:    Job slot number to check for allowance
+ *
+ * Will check if submitting to the given job slot is allowed in the current
+ * status.  For example using job slot 2 while in soft-stoppable state and only
+ * having 1 coregroup is not allowed by the policy. This function should be
+ * called prior to submitting a job to a slot to make sure policy rules are not
+ * violated.
+ *
+ * The following locking conditions are made on the caller
+ * - it must hold hwaccess_lock
+ */
+bool kbase_js_can_run_job_on_slot_no_lock(struct kbase_device *kbdev, int js);
+
+/**
+ * kbase_js_choose_affinity - Compute affinity for a given job.
+ *
+ * @affinity: Affinity bitmap computed
+ * @kbdev:    The kbase device structure of the device
+ * @katom:    Job chain of which affinity is going to be found
+ * @js:       Slot the job chain is being submitted
+ *
+ * Currently assumes an all-on/all-off power management policy.
+ * Also assumes there is at least one core with tiler available.
+ *
+ * Returns true if a valid affinity was chosen, false if
+ * no cores were available.
+ */
+bool kbase_js_choose_affinity(u64 * const affinity,
+					struct kbase_device *kbdev,
+					struct kbase_jd_atom *katom,
+					int js);
+
+/**
+ * kbase_js_affinity_would_violate - Determine whether a proposed affinity on
+ * job slot @js would cause a violation of affinity restrictions.
+ *
+ * @kbdev:    Kbase device structure
+ * @js:       The job slot to test
+ * @affinity: The affinity mask to test
+ *
+ * The following locks must be held by the caller
+ * - hwaccess_lock
+ *
+ * Return: true if the affinity would violate the restrictions
+ */
+bool kbase_js_affinity_would_violate(struct kbase_device *kbdev, int js,
+								u64 affinity);
+
+/**
+ * kbase_js_affinity_retain_slot_cores - Affinity tracking: retain cores used by
+ *                                       a slot
+ *
+ * @kbdev:    Kbase device structure
+ * @js:       The job slot retaining the cores
+ * @affinity: The cores to retain
+ *
+ * The following locks must be held by the caller
+ * - hwaccess_lock
+ */
+void kbase_js_affinity_retain_slot_cores(struct kbase_device *kbdev, int js,
+								u64 affinity);
+
+/**
+ * kbase_js_affinity_release_slot_cores - Affinity tracking: release cores used
+ *                                        by a slot
+ *
+ * @kbdev:    Kbase device structure
+ * @js:       Job slot
+ * @affinity: Bit mask of core to be released
+ *
+ * Cores must be released as soon as a job is dequeued from a slot's 'submit
+ * slots', and before another job is submitted to those slots. Otherwise, the
+ * refcount could exceed the maximum number submittable to a slot,
+ * %BASE_JM_SUBMIT_SLOTS.
+ *
+ * The following locks must be held by the caller
+ * - hwaccess_lock
+ */
+void kbase_js_affinity_release_slot_cores(struct kbase_device *kbdev, int js,
+								u64 affinity);
+
+/**
+ * kbase_js_debug_log_current_affinities - log the current affinities
+ *
+ * @kbdev:  Kbase device structure
+ *
+ * Output to the Trace log the current tracked affinities on all slots
+ */
+#if KBASE_TRACE_ENABLE
+void kbase_js_debug_log_current_affinities(struct kbase_device *kbdev);
+#else				/*  KBASE_TRACE_ENABLE  */
+static inline void
+kbase_js_debug_log_current_affinities(struct kbase_device *kbdev)
+{
+}
+#endif				/*  KBASE_TRACE_ENABLE  */
+
+#endif				/* _KBASE_JS_AFFINITY_H_ */