Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / gpu / drm / i915 / intel_lrc.h

diff --git a/kernel/drivers/gpu/drm/i915/intel_lrc.h b/kernel/drivers/gpu/drm/i915/intel_lrc.h
new file mode 100644 (file)
index 0000000..adb731e
--- /dev/null
+++ b/kernel/drivers/gpu/drm/i915/intel_lrc.h
@@ -0,0 +1,93 @@
+/*
+ * Copyright © 2014 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_LRC_H_
+#define _INTEL_LRC_H_
+
+#define GEN8_LR_CONTEXT_ALIGN 4096
+
+/* Execlists regs */
+#define RING_ELSP(ring)                        ((ring)->mmio_base+0x230)
+#define RING_EXECLIST_STATUS(ring)     ((ring)->mmio_base+0x234)
+#define RING_CONTEXT_CONTROL(ring)     ((ring)->mmio_base+0x244)
+#define          CTX_CTRL_INHIBIT_SYN_CTX_SWITCH       (1 << 3)
+#define          CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT   (1 << 0)
+#define RING_CONTEXT_STATUS_BUF(ring)  ((ring)->mmio_base+0x370)
+#define RING_CONTEXT_STATUS_PTR(ring)  ((ring)->mmio_base+0x3a0)
+
+/* Logical Rings */
+void intel_logical_ring_stop(struct intel_engine_cs *ring);
+void intel_logical_ring_cleanup(struct intel_engine_cs *ring);
+int intel_logical_rings_init(struct drm_device *dev);
+
+int logical_ring_flush_all_caches(struct intel_ringbuffer *ringbuf,
+                                 struct intel_context *ctx);
+/**
+ * intel_logical_ring_advance() - advance the ringbuffer tail
+ * @ringbuf: Ringbuffer to advance.
+ *
+ * The tail is only updated in our logical ringbuffer struct.
+ */
+static inline void intel_logical_ring_advance(struct intel_ringbuffer *ringbuf)
+{
+       ringbuf->tail &= ringbuf->size - 1;
+}
+/**
+ * intel_logical_ring_emit() - write a DWORD to the ringbuffer.
+ * @ringbuf: Ringbuffer to write to.
+ * @data: DWORD to write.
+ */
+static inline void intel_logical_ring_emit(struct intel_ringbuffer *ringbuf,
+                                          u32 data)
+{
+       iowrite32(data, ringbuf->virtual_start + ringbuf->tail);
+       ringbuf->tail += 4;
+}
+int intel_logical_ring_begin(struct intel_ringbuffer *ringbuf,
+                            struct intel_context *ctx,
+                            int num_dwords);
+
+/* Logical Ring Contexts */
+void intel_lr_context_free(struct intel_context *ctx);
+int intel_lr_context_deferred_create(struct intel_context *ctx,
+                                    struct intel_engine_cs *ring);
+void intel_lr_context_unpin(struct intel_engine_cs *ring,
+               struct intel_context *ctx);
+void intel_lr_context_reset(struct drm_device *dev,
+                       struct intel_context *ctx);
+
+/* Execlists */
+int intel_sanitize_enable_execlists(struct drm_device *dev, int enable_execlists);
+int intel_execlists_submission(struct drm_device *dev, struct drm_file *file,
+                              struct intel_engine_cs *ring,
+                              struct intel_context *ctx,
+                              struct drm_i915_gem_execbuffer2 *args,
+                              struct list_head *vmas,
+                              struct drm_i915_gem_object *batch_obj,
+                              u64 exec_start, u32 dispatch_flags);
+u32 intel_execlists_ctx_id(struct drm_i915_gem_object *ctx_obj);
+
+void intel_lrc_irq_handler(struct intel_engine_cs *ring);
+void intel_execlists_retire_requests(struct intel_engine_cs *ring);
+
+#endif /* _INTEL_LRC_H_ */