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-rw-r--r--drivers/gpu/drm/i915/intel_guc_ct.h104
1 files changed, 0 insertions, 104 deletions
diff --git a/drivers/gpu/drm/i915/intel_guc_ct.h b/drivers/gpu/drm/i915/intel_guc_ct.h
deleted file mode 100644
index 41ba593a4df7..000000000000
--- a/drivers/gpu/drm/i915/intel_guc_ct.h
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
- * Copyright © 2016-2017 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-
-#ifndef _INTEL_GUC_CT_H_
-#define _INTEL_GUC_CT_H_
-
-struct intel_guc;
-struct i915_vma;
-
-#include "intel_guc_fwif.h"
-
-/**
- * DOC: Command Transport (CT).
- *
- * Buffer based command transport is a replacement for MMIO based mechanism.
- * It can be used to perform both host-2-guc and guc-to-host communication.
- */
-
-/** Represents single command transport buffer.
- *
- * A single command transport buffer consists of two parts, the header
- * record (command transport buffer descriptor) and the actual buffer which
- * holds the commands.
- *
- * @desc: pointer to the buffer descriptor
- * @cmds: pointer to the commands buffer
- */
-struct intel_guc_ct_buffer {
- struct guc_ct_buffer_desc *desc;
- u32 *cmds;
-};
-
-/** Represents pair of command transport buffers.
- *
- * Buffers go in pairs to allow bi-directional communication.
- * To simplify the code we place both of them in the same vma.
- * Buffers from the same pair must share unique owner id.
- *
- * @vma: pointer to the vma with pair of CT buffers
- * @ctbs: buffers for sending(0) and receiving(1) commands
- * @owner: unique identifier
- * @next_fence: fence to be used with next send command
- */
-struct intel_guc_ct_channel {
- struct i915_vma *vma;
- struct intel_guc_ct_buffer ctbs[2];
- u32 owner;
- u32 next_fence;
- bool enabled;
-};
-
-/** Holds all command transport channels.
- *
- * @host_channel: main channel used by the host
- */
-struct intel_guc_ct {
- struct intel_guc_ct_channel host_channel;
- /* other channels are tbd */
-
- /** @lock: protects pending requests list */
- spinlock_t lock;
-
- /** @pending_requests: list of requests waiting for response */
- struct list_head pending_requests;
-
- /** @incoming_requests: list of incoming requests */
- struct list_head incoming_requests;
-
- /** @worker: worker for handling incoming requests */
- struct work_struct worker;
-};
-
-void intel_guc_ct_init_early(struct intel_guc_ct *ct);
-int intel_guc_ct_init(struct intel_guc_ct *ct);
-void intel_guc_ct_fini(struct intel_guc_ct *ct);
-int intel_guc_ct_enable(struct intel_guc_ct *ct);
-void intel_guc_ct_disable(struct intel_guc_ct *ct);
-
-static inline void intel_guc_ct_stop(struct intel_guc_ct *ct)
-{
- ct->host_channel.enabled = false;
-}
-
-#endif /* _INTEL_GUC_CT_H_ */
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