drivers/gpu/drm/vboxvideo/hgsmi_ch_setup.h

   1 /* SPDX-License-Identifier: MIT */
   2 /* Copyright (C) 2006-2017 Oracle Corporation */
   3
   4 #ifndef __HGSMI_CH_SETUP_H__
   5 #define __HGSMI_CH_SETUP_H__
   6
   7 /*
   8  * Tell the host the location of hgsmi_host_flags structure, where the host
   9  * can write information about pending buffers, etc, and which can be quickly
  10  * polled by the guest without a need to port IO.
  11  */
  12 #define HGSMI_CC_HOST_FLAGS_LOCATION 0
  13
  14 struct hgsmi_buffer_location {
  15         u32 buf_location;
  16         u32 buf_len;
  17 } __packed;
  18
  19 /* HGSMI setup and configuration data structures. */
  20
  21 #define HGSMIHOSTFLAGS_COMMANDS_PENDING    0x01u
  22 #define HGSMIHOSTFLAGS_IRQ                 0x02u
  23 #define HGSMIHOSTFLAGS_VSYNC               0x10u
  24 #define HGSMIHOSTFLAGS_HOTPLUG             0x20u
  25 #define HGSMIHOSTFLAGS_CURSOR_CAPABILITIES 0x40u
  26
  27 struct hgsmi_host_flags {
  28         u32 host_flags;
  29         u32 reserved[3];
  30 } __packed;
  31
  32 #endif