MALI: utgard: upgrade DDK to r7p0-00rel0

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / arm / mali400 / mali / linux / mali_dma_fence.h

diff --git a/drivers/gpu/arm/mali400/mali/linux/mali_dma_fence.h b/drivers/gpu/arm/mali400/mali/linux/mali_dma_fence.h
new file mode 100644 (file)
index 0000000..35534e2
--- /dev/null
+++ b/drivers/gpu/arm/mali400/mali/linux/mali_dma_fence.h
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2012-2016 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.
+ */
+
+/**
+ * @file mali_dma_fence.h
+ *
+ * Mali interface for Linux dma buf fence objects.
+ */
+
+#ifndef _MALI_DMA_FENCE_H_
+#define _MALI_DMA_FENCE_H_
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 17, 0)
+#include <linux/fence.h>
+#include <linux/reservation.h>
+#endif
+
+struct mali_dma_fence_context;
+
+/* The mali dma fence context callback function */
+typedef void (*mali_dma_fence_context_callback_func_t)(void *pp_job_ptr);
+
+struct mali_dma_fence_waiter {
+       struct fence_cb base;
+       struct mali_dma_fence_context *parent;
+       struct fence *fence;
+};
+
+struct mali_dma_fence_context {
+       struct work_struct work_handle;
+       struct mali_dma_fence_waiter **mali_dma_fence_waiters;
+       u32 num_dma_fence_waiter;
+       atomic_t count;
+       void *pp_job_ptr; /* the mali pp job pointer */;
+       mali_dma_fence_context_callback_func_t cb_func;
+};
+
+/* Create a dma fence
+ * @param context The execution context this fence is run on
+ * @param seqno A linearly increasing sequence number for this context
+ * @return the new dma fence if success, or NULL on failure.
+ */
+struct fence *mali_dma_fence_new(u32  context, u32 seqno);
+
+/* Signal and put dma fence
+ * @param fence The dma fence to signal and put
+ */
+void mali_dma_fence_signal_and_put(struct fence **fence);
+
+/**
+ * Initialize a mali dma fence context for pp job.
+ * @param dma_fence_context The mali dma fence context to initialize.
+ * @param cb_func The dma fence context callback function to call when all dma fence release.
+ * @param pp_job_ptr The pp_job to call function with.
+ */
+void mali_dma_fence_context_init(struct mali_dma_fence_context *dma_fence_context,
+                                mali_dma_fence_context_callback_func_t  cb_func,
+                                void *pp_job_ptr);
+
+/**
+ * Add new mali dma fence waiter into mali dma fence context
+ * @param dma_fence_context The mali dma fence context
+ * @param dma_reservation_object the reservation object to create new mali dma fence waiters
+ * @return _MALI_OSK_ERR_OK if success, or not.
+ */
+_mali_osk_errcode_t mali_dma_fence_context_add_waiters(struct mali_dma_fence_context *dma_fence_context,
+               struct reservation_object *dma_reservation_object);
+
+/**
+ * Release the dma fence context
+ * @param dma_fence_text The mali dma fence context.
+ */
+void mali_dma_fence_context_term(struct mali_dma_fence_context *dma_fence_context);
+
+/**
+ * Decrease the dma fence context atomic count
+ * @param dma_fence_text The mali dma fence context.
+ */
+void mali_dma_fence_context_dec_count(struct mali_dma_fence_context *dma_fence_context);
+
+/**
+ * Get all reservation object
+ * @param dma_reservation_object The reservation object to add into the reservation object list
+ * @param dma_reservation_object_list The reservation object list to store all reservation object
+ * @param num_dma_reservation_object The number of all reservation object
+ */
+void mali_dma_fence_add_reservation_object_list(struct reservation_object *dma_reservation_object,
+               struct reservation_object **dma_reservation_object_list,
+               u32 *num_dma_reservation_object);
+
+/**
+ * Wait/wound mutex lock to lock all reservation object.
+ */
+int mali_dma_fence_lock_reservation_object_list(struct reservation_object **dma_reservation_object_list,
+               u32  num_dma_reservation_object, struct ww_acquire_ctx *ww_actx);
+
+/**
+ * Wait/wound mutex lock to unlock all reservation object.
+ */
+void mali_dma_fence_unlock_reservation_object_list(struct reservation_object **dma_reservation_object_list,
+               u32 num_dma_reservation_object, struct ww_acquire_ctx *ww_actx);
+#endif