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1/* SPDX-License-Identifier: MIT */2/*3 * Copyright (C) 2013-2017 Oracle Corporation4 * This file is based on ast_drv.h5 * Copyright 2012 Red Hat Inc.6 * Authors: Dave Airlie <airlied@redhat.com>7 * Michael Thayer <michael.thayer@oracle.com,8 * Hans de Goede <hdegoede@redhat.com>9 */10#ifndef __VBOX_DRV_H__11#define __VBOX_DRV_H__12 13#include <linux/genalloc.h>14#include <linux/io.h>15#include <linux/irqreturn.h>16#include <linux/string.h>17 18#include <drm/drm_encoder.h>19#include <drm/drm_gem.h>20#include <drm/drm_gem_vram_helper.h>21 22#include "vboxvideo_guest.h"23#include "vboxvideo_vbe.h"24#include "hgsmi_ch_setup.h"25 26#define DRIVER_NAME "vboxvideo"27#define DRIVER_DESC "Oracle VM VirtualBox Graphics Card"28#define DRIVER_DATE "20130823"29 30#define DRIVER_MAJOR 131#define DRIVER_MINOR 032#define DRIVER_PATCHLEVEL 033 34#define VBOX_MAX_CURSOR_WIDTH 6435#define VBOX_MAX_CURSOR_HEIGHT 6436#define CURSOR_PIXEL_COUNT (VBOX_MAX_CURSOR_WIDTH * VBOX_MAX_CURSOR_HEIGHT)37#define CURSOR_DATA_SIZE (CURSOR_PIXEL_COUNT * 4 + CURSOR_PIXEL_COUNT / 8)38 39#define VBOX_MAX_SCREENS 3240 41#define GUEST_HEAP_OFFSET(vbox) ((vbox)->full_vram_size - \42 VBVA_ADAPTER_INFORMATION_SIZE)43#define GUEST_HEAP_SIZE VBVA_ADAPTER_INFORMATION_SIZE44#define GUEST_HEAP_USABLE_SIZE (VBVA_ADAPTER_INFORMATION_SIZE - \45 sizeof(struct hgsmi_host_flags))46#define HOST_FLAGS_OFFSET GUEST_HEAP_USABLE_SIZE47 48struct vbox_private {49 /* Must be first; or we must define our own release callback */50 struct drm_device ddev;51 52 u8 __iomem *guest_heap;53 u8 __iomem *vbva_buffers;54 struct gen_pool *guest_pool;55 struct vbva_buf_ctx *vbva_info;56 bool any_pitch;57 u32 num_crtcs;58 /* Amount of available VRAM, including space used for buffers. */59 u32 full_vram_size;60 /* Amount of available VRAM, not including space used for buffers. */61 u32 available_vram_size;62 /* Array of structures for receiving mode hints. */63 struct vbva_modehint *last_mode_hints;64 65 int fb_mtrr;66 67 struct mutex hw_mutex; /* protects modeset and accel/vbva accesses */68 struct work_struct hotplug_work;69 u32 input_mapping_width;70 u32 input_mapping_height;71 /*72 * Is user-space using an X.Org-style layout of one large frame-buffer73 * encompassing all screen ones or is the fbdev console active?74 */75 bool single_framebuffer;76 u8 cursor_data[CURSOR_DATA_SIZE];77};78 79#undef CURSOR_PIXEL_COUNT80#undef CURSOR_DATA_SIZE81 82struct vbox_connector {83 struct drm_connector base;84 char name[32];85 struct vbox_crtc *vbox_crtc;86 struct {87 u32 width;88 u32 height;89 bool disconnected;90 } mode_hint;91};92 93struct vbox_crtc {94 struct drm_crtc base;95 bool disconnected;96 unsigned int crtc_id;97 u32 fb_offset;98 bool cursor_enabled;99 u32 x_hint;100 u32 y_hint;101 /*102 * When setting a mode we not only pass the mode to the hypervisor,103 * but also information on how to map / translate input coordinates104 * for the emulated USB tablet. This input-mapping may change when105 * the mode on *another* crtc changes.106 *107 * This means that sometimes we must do a modeset on other crtc-s then108 * the one being changed to update the input-mapping. Including crtc-s109 * which may be disabled inside the guest (shown as a black window110 * on the host unless closed by the user).111 *112 * With atomic modesetting the mode-info of disabled crtcs gets zeroed113 * yet we need it when updating the input-map to avoid resizing the114 * window as a side effect of a mode_set on another crtc. Therefor we115 * cache the info of the last mode below.116 */117 u32 width;118 u32 height;119 u32 x;120 u32 y;121};122 123struct vbox_encoder {124 struct drm_encoder base;125};126 127#define to_vbox_crtc(x) container_of(x, struct vbox_crtc, base)128#define to_vbox_connector(x) container_of(x, struct vbox_connector, base)129#define to_vbox_encoder(x) container_of(x, struct vbox_encoder, base)130#define to_vbox_dev(x) container_of(x, struct vbox_private, ddev)131 132bool vbox_check_supported(u16 id);133int vbox_hw_init(struct vbox_private *vbox);134void vbox_hw_fini(struct vbox_private *vbox);135 136int vbox_mode_init(struct vbox_private *vbox);137void vbox_mode_fini(struct vbox_private *vbox);138 139void vbox_report_caps(struct vbox_private *vbox);140 141int vbox_mm_init(struct vbox_private *vbox);142 143/* vbox_irq.c */144int vbox_irq_init(struct vbox_private *vbox);145void vbox_irq_fini(struct vbox_private *vbox);146void vbox_report_hotplug(struct vbox_private *vbox);147 148/* vbox_hgsmi.c */149void *hgsmi_buffer_alloc(struct gen_pool *guest_pool, size_t size,150 u8 channel, u16 channel_info);151void hgsmi_buffer_free(struct gen_pool *guest_pool, void *buf);152int hgsmi_buffer_submit(struct gen_pool *guest_pool, void *buf);153 154static inline void vbox_write_ioport(u16 index, u16 data)155{156 outw(index, VBE_DISPI_IOPORT_INDEX);157 outw(data, VBE_DISPI_IOPORT_DATA);158}159 160#endif161