These changes are the raw update to linux-4.4.6-rt14. Kernel sources
[kvmfornfv.git] / kernel / drivers / gpu / drm / vmwgfx / vmwgfx_so.h
diff --git a/kernel/drivers/gpu/drm/vmwgfx/vmwgfx_so.h b/kernel/drivers/gpu/drm/vmwgfx/vmwgfx_so.h
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+/**************************************************************************
+ * Copyright © 2014-2015 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 VMW_SO_H
+#define VMW_SO_H
+
+enum vmw_view_type {
+       vmw_view_sr,
+       vmw_view_rt,
+       vmw_view_ds,
+       vmw_view_max,
+};
+
+enum vmw_so_type {
+       vmw_so_el,
+       vmw_so_bs,
+       vmw_so_ds,
+       vmw_so_rs,
+       vmw_so_ss,
+       vmw_so_so,
+       vmw_so_max,
+};
+
+/**
+ * union vmw_view_destroy - view destruction command body
+ *
+ * @rtv: RenderTarget view destruction command body
+ * @srv: ShaderResource view destruction command body
+ * @dsv: DepthStencil view destruction command body
+ * @view_id: A single u32 view id.
+ *
+ * The assumption here is that all union members are really represented by a
+ * single u32 in the command stream. If that's not the case,
+ * the size of this union will not equal the size of an u32, and the
+ * assumption is invalid, and we detect that at compile time in the
+ * vmw_so_build_asserts() function.
+ */
+union vmw_view_destroy {
+       struct SVGA3dCmdDXDestroyRenderTargetView rtv;
+       struct SVGA3dCmdDXDestroyShaderResourceView srv;
+       struct SVGA3dCmdDXDestroyDepthStencilView dsv;
+       u32 view_id;
+};
+
+/* Map enum vmw_view_type to view destroy command ids*/
+extern const u32 vmw_view_destroy_cmds[];
+
+/* Map enum vmw_view_type to SVGACOTableType */
+extern const SVGACOTableType vmw_view_cotables[];
+
+/* Map enum vmw_so_type to SVGACOTableType */
+extern const SVGACOTableType vmw_so_cotables[];
+
+/*
+ * vmw_view_cmd_to_type - Return the view type for a create or destroy command
+ *
+ * @id: The SVGA3D command id.
+ *
+ * For a given view create or destroy command id, return the corresponding
+ * enum vmw_view_type. If the command is unknown, return vmw_view_max.
+ * The validity of the simplified calculation is verified in the
+ * vmw_so_build_asserts() function.
+ */
+static inline enum vmw_view_type vmw_view_cmd_to_type(u32 id)
+{
+       u32 tmp = (id - SVGA_3D_CMD_DX_DEFINE_SHADERRESOURCE_VIEW) / 2;
+
+       if (tmp > (u32)vmw_view_max)
+               return vmw_view_max;
+
+       return (enum vmw_view_type) tmp;
+}
+
+/*
+ * vmw_so_cmd_to_type - Return the state object type for a
+ * create or destroy command
+ *
+ * @id: The SVGA3D command id.
+ *
+ * For a given state object create or destroy command id,
+ * return the corresponding enum vmw_so_type. If the command is uknown,
+ * return vmw_so_max. We should perhaps optimize this function using
+ * a similar strategy as vmw_view_cmd_to_type().
+ */
+static inline enum vmw_so_type vmw_so_cmd_to_type(u32 id)
+{
+       switch (id) {
+       case SVGA_3D_CMD_DX_DEFINE_ELEMENTLAYOUT:
+       case SVGA_3D_CMD_DX_DESTROY_ELEMENTLAYOUT:
+               return vmw_so_el;
+       case SVGA_3D_CMD_DX_DEFINE_BLEND_STATE:
+       case SVGA_3D_CMD_DX_DESTROY_BLEND_STATE:
+               return vmw_so_bs;
+       case SVGA_3D_CMD_DX_DEFINE_DEPTHSTENCIL_STATE:
+       case SVGA_3D_CMD_DX_DESTROY_DEPTHSTENCIL_STATE:
+               return vmw_so_ds;
+       case SVGA_3D_CMD_DX_DEFINE_RASTERIZER_STATE:
+       case SVGA_3D_CMD_DX_DESTROY_RASTERIZER_STATE:
+               return vmw_so_rs;
+       case SVGA_3D_CMD_DX_DEFINE_SAMPLER_STATE:
+       case SVGA_3D_CMD_DX_DESTROY_SAMPLER_STATE:
+               return vmw_so_ss;
+       case SVGA_3D_CMD_DX_DEFINE_STREAMOUTPUT:
+       case SVGA_3D_CMD_DX_DESTROY_STREAMOUTPUT:
+               return vmw_so_so;
+       default:
+               break;
+       }
+       return vmw_so_max;
+}
+
+/*
+ * View management - vmwgfx_so.c
+ */
+extern int vmw_view_add(struct vmw_cmdbuf_res_manager *man,
+                       struct vmw_resource *ctx,
+                       struct vmw_resource *srf,
+                       enum vmw_view_type view_type,
+                       u32 user_key,
+                       const void *cmd,
+                       size_t cmd_size,
+                       struct list_head *list);
+
+extern int vmw_view_remove(struct vmw_cmdbuf_res_manager *man,
+                          u32 user_key, enum vmw_view_type view_type,
+                          struct list_head *list,
+                          struct vmw_resource **res_p);
+
+extern void vmw_view_surface_list_destroy(struct vmw_private *dev_priv,
+                                         struct list_head *view_list);
+extern void vmw_view_cotable_list_destroy(struct vmw_private *dev_priv,
+                                         struct list_head *list,
+                                         bool readback);
+extern struct vmw_resource *vmw_view_srf(struct vmw_resource *res);
+extern struct vmw_resource *vmw_view_lookup(struct vmw_cmdbuf_res_manager *man,
+                                           enum vmw_view_type view_type,
+                                           u32 user_key);
+#endif