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/* SPDX-License-Identifier: MIT */
/*
* Copyright (C) 2013-2017 Oracle Corporation
* This file is based on ast_drv.h
* Copyright 2012 Red Hat Inc.
* Authors: Dave Airlie <airlied@redhat.com>
* Michael Thayer <michael.thayer@oracle.com,
* Hans de Goede <hdegoede@redhat.com>
*/
#ifndef __VBOX_DRV_H__
#define __VBOX_DRV_H__
#include <linux/genalloc.h>
#include <linux/io.h>
#include <linux/irqreturn.h>
#include <linux/string.h>
#include <drm/drm_encoder.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_gem.h>
#include <drm/ttm/ttm_bo_api.h>
#include <drm/ttm/ttm_bo_driver.h>
#include <drm/ttm/ttm_placement.h>
#include <drm/ttm/ttm_memory.h>
#include <drm/ttm/ttm_module.h>
#include "vboxvideo_guest.h"
#include "vboxvideo_vbe.h"
#include "hgsmi_ch_setup.h"
#define DRIVER_NAME "vboxvideo"
#define DRIVER_DESC "Oracle VM VirtualBox Graphics Card"
#define DRIVER_DATE "20130823"
#define DRIVER_MAJOR 1
#define DRIVER_MINOR 0
#define DRIVER_PATCHLEVEL 0
#define VBOX_MAX_CURSOR_WIDTH 64
#define VBOX_MAX_CURSOR_HEIGHT 64
#define CURSOR_PIXEL_COUNT (VBOX_MAX_CURSOR_WIDTH * VBOX_MAX_CURSOR_HEIGHT)
#define CURSOR_DATA_SIZE (CURSOR_PIXEL_COUNT * 4 + CURSOR_PIXEL_COUNT / 8)
#define VBOX_MAX_SCREENS 32
#define GUEST_HEAP_OFFSET(vbox) ((vbox)->full_vram_size - \
VBVA_ADAPTER_INFORMATION_SIZE)
#define GUEST_HEAP_SIZE VBVA_ADAPTER_INFORMATION_SIZE
#define GUEST_HEAP_USABLE_SIZE (VBVA_ADAPTER_INFORMATION_SIZE - \
sizeof(struct hgsmi_host_flags))
#define HOST_FLAGS_OFFSET GUEST_HEAP_USABLE_SIZE
struct vbox_framebuffer {
struct drm_framebuffer base;
struct drm_gem_object *obj;
};
struct vbox_private {
/* Must be first; or we must define our own release callback */
struct drm_device ddev;
struct drm_fb_helper fb_helper;
struct vbox_framebuffer afb;
u8 __iomem *guest_heap;
u8 __iomem *vbva_buffers;
struct gen_pool *guest_pool;
struct vbva_buf_ctx *vbva_info;
bool any_pitch;
u32 num_crtcs;
/* Amount of available VRAM, including space used for buffers. */
u32 full_vram_size;
/* Amount of available VRAM, not including space used for buffers. */
u32 available_vram_size;
/* Array of structures for receiving mode hints. */
struct vbva_modehint *last_mode_hints;
int fb_mtrr;
struct {
struct ttm_bo_device bdev;
} ttm;
struct mutex hw_mutex; /* protects modeset and accel/vbva accesses */
struct work_struct hotplug_work;
u32 input_mapping_width;
u32 input_mapping_height;
/*
* Is user-space using an X.Org-style layout of one large frame-buffer
* encompassing all screen ones or is the fbdev console active?
*/
bool single_framebuffer;
u8 cursor_data[CURSOR_DATA_SIZE];
};
#undef CURSOR_PIXEL_COUNT
#undef CURSOR_DATA_SIZE
struct vbox_gem_object;
struct vbox_connector {
struct drm_connector base;
char name[32];
struct vbox_crtc *vbox_crtc;
struct {
u32 width;
u32 height;
bool disconnected;
} mode_hint;
};
struct vbox_crtc {
struct drm_crtc base;
bool disconnected;
unsigned int crtc_id;
u32 fb_offset;
bool cursor_enabled;
u32 x_hint;
u32 y_hint;
/*
* When setting a mode we not only pass the mode to the hypervisor,
* but also information on how to map / translate input coordinates
* for the emulated USB tablet. This input-mapping may change when
* the mode on *another* crtc changes.
*
* This means that sometimes we must do a modeset on other crtc-s then
* the one being changed to update the input-mapping. Including crtc-s
* which may be disabled inside the guest (shown as a black window
* on the host unless closed by the user).
*
* With atomic modesetting the mode-info of disabled crtcs gets zeroed
* yet we need it when updating the input-map to avoid resizing the
* window as a side effect of a mode_set on another crtc. Therefor we
* cache the info of the last mode below.
*/
u32 width;
u32 height;
u32 x;
u32 y;
};
struct vbox_encoder {
struct drm_encoder base;
};
#define to_vbox_crtc(x) container_of(x, struct vbox_crtc, base)
#define to_vbox_connector(x) container_of(x, struct vbox_connector, base)
#define to_vbox_encoder(x) container_of(x, struct vbox_encoder, base)
#define to_vbox_framebuffer(x) container_of(x, struct vbox_framebuffer, base)
bool vbox_check_supported(u16 id);
int vbox_hw_init(struct vbox_private *vbox);
void vbox_hw_fini(struct vbox_private *vbox);
int vbox_mode_init(struct vbox_private *vbox);
void vbox_mode_fini(struct vbox_private *vbox);
void vbox_report_caps(struct vbox_private *vbox);
void vbox_framebuffer_dirty_rectangles(struct drm_framebuffer *fb,
struct drm_clip_rect *rects,
unsigned int num_rects);
int vbox_framebuffer_init(struct vbox_private *vbox,
struct vbox_framebuffer *vbox_fb,
const struct drm_mode_fb_cmd2 *mode_cmd,
struct drm_gem_object *obj);
int vboxfb_create(struct drm_fb_helper *helper,
struct drm_fb_helper_surface_size *sizes);
void vbox_fbdev_fini(struct vbox_private *vbox);
struct vbox_bo {
struct ttm_buffer_object bo;
struct ttm_placement placement;
struct ttm_bo_kmap_obj kmap;
struct drm_gem_object gem;
struct ttm_place placements[3];
int pin_count;
};
#define gem_to_vbox_bo(gobj) container_of((gobj), struct vbox_bo, gem)
static inline struct vbox_bo *vbox_bo(struct ttm_buffer_object *bo)
{
return container_of(bo, struct vbox_bo, bo);
}
#define to_vbox_obj(x) container_of(x, struct vbox_gem_object, base)
static inline u64 vbox_bo_gpu_offset(struct vbox_bo *bo)
{
return bo->bo.offset;
}
int vbox_dumb_create(struct drm_file *file,
struct drm_device *dev,
struct drm_mode_create_dumb *args);
void vbox_gem_free_object(struct drm_gem_object *obj);
int vbox_dumb_mmap_offset(struct drm_file *file,
struct drm_device *dev,
u32 handle, u64 *offset);
int vbox_mm_init(struct vbox_private *vbox);
void vbox_mm_fini(struct vbox_private *vbox);
int vbox_bo_create(struct vbox_private *vbox, int size, int align,
u32 flags, struct vbox_bo **pvboxbo);
int vbox_gem_create(struct vbox_private *vbox,
u32 size, bool iskernel, struct drm_gem_object **obj);
int vbox_bo_pin(struct vbox_bo *bo, u32 pl_flag);
int vbox_bo_unpin(struct vbox_bo *bo);
static inline int vbox_bo_reserve(struct vbox_bo *bo, bool no_wait)
{
int ret;
ret = ttm_bo_reserve(&bo->bo, true, no_wait, NULL);
if (ret) {
if (ret != -ERESTARTSYS && ret != -EBUSY)
DRM_ERROR("reserve failed %p\n", bo);
return ret;
}
return 0;
}
static inline void vbox_bo_unreserve(struct vbox_bo *bo)
{
ttm_bo_unreserve(&bo->bo);
}
void vbox_ttm_placement(struct vbox_bo *bo, int domain);
int vbox_bo_push_sysram(struct vbox_bo *bo);
int vbox_mmap(struct file *filp, struct vm_area_struct *vma);
void *vbox_bo_kmap(struct vbox_bo *bo);
void vbox_bo_kunmap(struct vbox_bo *bo);
/* vbox_prime.c */
int vbox_gem_prime_pin(struct drm_gem_object *obj);
void vbox_gem_prime_unpin(struct drm_gem_object *obj);
struct sg_table *vbox_gem_prime_get_sg_table(struct drm_gem_object *obj);
struct drm_gem_object *vbox_gem_prime_import_sg_table(
struct drm_device *dev, struct dma_buf_attachment *attach,
struct sg_table *table);
void *vbox_gem_prime_vmap(struct drm_gem_object *obj);
void vbox_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
int vbox_gem_prime_mmap(struct drm_gem_object *obj,
struct vm_area_struct *area);
/* vbox_irq.c */
int vbox_irq_init(struct vbox_private *vbox);
void vbox_irq_fini(struct vbox_private *vbox);
void vbox_report_hotplug(struct vbox_private *vbox);
irqreturn_t vbox_irq_handler(int irq, void *arg);
/* vbox_hgsmi.c */
void *hgsmi_buffer_alloc(struct gen_pool *guest_pool, size_t size,
u8 channel, u16 channel_info);
void hgsmi_buffer_free(struct gen_pool *guest_pool, void *buf);
int hgsmi_buffer_submit(struct gen_pool *guest_pool, void *buf);
static inline void vbox_write_ioport(u16 index, u16 data)
{
outw(index, VBE_DISPI_IOPORT_INDEX);
outw(data, VBE_DISPI_IOPORT_DATA);
}
#endif
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