drm/vmwgfx: Initial DX support

Initial DX support.
Co-authored with Sinclair Yeh, Charmaine Lee and Jakob Bornecrantz.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Charmaine Lee <charmainel@vmware.com>

1 files changed, 209 insertions, 0 deletions

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_binding.h b/drivers/gpu/drm/vmwgfx/vmwgfx_binding.h
new file mode 100644
index 000000000000..bf2e77ad5a20
--- /dev/null
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_binding.h
@@ -0,0 +1,209 @@
+/**************************************************************************
+ *
+ * Copyright © 2015 VMware, Inc., Palo Alto, CA., USA
+ * All Rights Reserved.
+ *
+ * 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, sub license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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 _VMWGFX_BINDING_H_
+#define _VMWGFX_BINDING_H_
+
+#include "device_include/svga3d_reg.h"
+#include <linux/list.h>
+
+#define VMW_MAX_VIEW_BINDINGS 128
+
+struct vmw_private;
+struct vmw_ctx_binding_state;
+
+/*
+ * enum vmw_ctx_binding_type - abstract resource to context binding types
+ */
+enum vmw_ctx_binding_type {
+	vmw_ctx_binding_shader,
+	vmw_ctx_binding_rt,
+	vmw_ctx_binding_tex,
+	vmw_ctx_binding_cb,
+	vmw_ctx_binding_dx_shader,
+	vmw_ctx_binding_dx_rt,
+	vmw_ctx_binding_sr,
+	vmw_ctx_binding_ds,
+	vmw_ctx_binding_so,
+	vmw_ctx_binding_vb,
+	vmw_ctx_binding_ib,
+	vmw_ctx_binding_max
+};
+
+/**
+ * struct vmw_ctx_bindinfo - single binding metadata
+ *
+ * @ctx_list: List head for the context's list of bindings.
+ * @res_list: List head for a resource's list of bindings.
+ * @ctx: Non-refcounted pointer to the context that owns the binding. NULL
+ * indicates no binding present.
+ * @res: Non-refcounted pointer to the resource the binding points to. This
+ * is typically a surface or a view.
+ * @bt: Binding type.
+ * @scrubbed: Whether the binding has been scrubbed from the context.
+ */
+struct vmw_ctx_bindinfo {
+	struct list_head ctx_list;
+	struct list_head res_list;
+	struct vmw_resource *ctx;
+	struct vmw_resource *res;
+	enum vmw_ctx_binding_type bt;
+	bool scrubbed;
+};
+
+/**
+ * struct vmw_ctx_bindinfo_tex - texture stage binding metadata
+ *
+ * @bi: struct vmw_ctx_bindinfo we derive from.
+ * @texture_stage: Device data used to reconstruct binding command.
+ */
+struct vmw_ctx_bindinfo_tex {
+	struct vmw_ctx_bindinfo bi;
+	uint32 texture_stage;
+};
+
+/**
+ * struct vmw_ctx_bindinfo_shader - Shader binding metadata
+ *
+ * @bi: struct vmw_ctx_bindinfo we derive from.
+ * @shader_slot: Device data used to reconstruct binding command.
+ */
+struct vmw_ctx_bindinfo_shader {
+	struct vmw_ctx_bindinfo bi;
+	SVGA3dShaderType shader_slot;
+};
+
+/**
+ * struct vmw_ctx_bindinfo_cb - Constant buffer binding metadata
+ *
+ * @bi: struct vmw_ctx_bindinfo we derive from.
+ * @shader_slot: Device data used to reconstruct binding command.
+ * @offset: Device data used to reconstruct binding command.
+ * @size: Device data used to reconstruct binding command.
+ * @slot: Device data used to reconstruct binding command.
+ */
+struct vmw_ctx_bindinfo_cb {
+	struct vmw_ctx_bindinfo bi;
+	SVGA3dShaderType shader_slot;
+	uint32 offset;
+	uint32 size;
+	uint32 slot;
+};
+
+/**
+ * struct vmw_ctx_bindinfo_view - View binding metadata
+ *
+ * @bi: struct vmw_ctx_bindinfo we derive from.
+ * @shader_slot: Device data used to reconstruct binding command.
+ * @slot: Device data used to reconstruct binding command.
+ */
+struct vmw_ctx_bindinfo_view {
+	struct vmw_ctx_bindinfo bi;
+	SVGA3dShaderType shader_slot;
+	uint32 slot;
+};
+
+/**
+ * struct vmw_ctx_bindinfo_so - StreamOutput binding metadata
+ *
+ * @bi: struct vmw_ctx_bindinfo we derive from.
+ * @offset: Device data used to reconstruct binding command.
+ * @size: Device data used to reconstruct binding command.
+ * @slot: Device data used to reconstruct binding command.
+ */
+struct vmw_ctx_bindinfo_so {
+	struct vmw_ctx_bindinfo bi;
+	uint32 offset;
+	uint32 size;
+	uint32 slot;
+};
+
+/**
+ * struct vmw_ctx_bindinfo_vb - Vertex buffer binding metadata
+ *
+ * @bi: struct vmw_ctx_bindinfo we derive from.
+ * @offset: Device data used to reconstruct binding command.
+ * @stride: Device data used to reconstruct binding command.
+ * @slot: Device data used to reconstruct binding command.
+ */
+struct vmw_ctx_bindinfo_vb {
+	struct vmw_ctx_bindinfo bi;
+	uint32 offset;
+	uint32 stride;
+	uint32 slot;
+};
+
+/**
+ * struct vmw_ctx_bindinfo_ib - StreamOutput binding metadata
+ *
+ * @bi: struct vmw_ctx_bindinfo we derive from.
+ * @offset: Device data used to reconstruct binding command.
+ * @format: Device data used to reconstruct binding command.
+ */
+struct vmw_ctx_bindinfo_ib {
+	struct vmw_ctx_bindinfo bi;
+	uint32 offset;
+	uint32 format;
+};
+
+/**
+ * struct vmw_dx_shader_bindings - per shader type context binding state
+ *
+ * @shader: The shader binding for this shader type
+ * @const_buffer: Const buffer bindings for this shader type.
+ * @shader_res: Shader resource view bindings for this shader type.
+ * @dirty_sr: Bitmap tracking individual shader resource bindings changes
+ * that have not yet been emitted to the device.
+ * @dirty: Bitmap tracking per-binding type binding changes that have not
+ * yet been emitted to the device.
+ */
+struct vmw_dx_shader_bindings {
+	struct vmw_ctx_bindinfo_shader shader;
+	struct vmw_ctx_bindinfo_cb const_buffers[SVGA3D_DX_MAX_CONSTBUFFERS];
+	struct vmw_ctx_bindinfo_view shader_res[SVGA3D_DX_MAX_SRVIEWS];
+	DECLARE_BITMAP(dirty_sr, SVGA3D_DX_MAX_SRVIEWS);
+	unsigned long dirty;
+};
+
+extern void vmw_binding_add(struct vmw_ctx_binding_state *cbs,
+			    const struct vmw_ctx_bindinfo *ci,
+			    u32 shader_slot, u32 slot);
+extern void
+vmw_binding_state_commit(struct vmw_ctx_binding_state *to,
+			 struct vmw_ctx_binding_state *from);
+extern void vmw_binding_res_list_kill(struct list_head *head);
+extern void vmw_binding_res_list_scrub(struct list_head *head);
+extern int vmw_binding_rebind_all(struct vmw_ctx_binding_state *cbs);
+extern void vmw_binding_state_kill(struct vmw_ctx_binding_state *cbs);
+extern void vmw_binding_state_scrub(struct vmw_ctx_binding_state *cbs);
+extern struct vmw_ctx_binding_state *
+vmw_binding_state_alloc(struct vmw_private *dev_priv);
+extern void vmw_binding_state_free(struct vmw_ctx_binding_state *cbs);
+extern struct list_head *
+vmw_binding_state_list(struct vmw_ctx_binding_state *cbs);
+extern void vmw_binding_state_reset(struct vmw_ctx_binding_state *cbs);
+
+#endif