diff options
Diffstat (limited to 'drivers/gpu/drm/vboxvideo/vbox_drv.h')
| -rw-r--r-- | drivers/gpu/drm/vboxvideo/vbox_drv.h | 271 |
1 files changed, 271 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.h b/drivers/gpu/drm/vboxvideo/vbox_drv.h new file mode 100644 index 000000000000..ece31f395540 --- /dev/null +++ b/drivers/gpu/drm/vboxvideo/vbox_drv.h @@ -0,0 +1,271 @@ +/* 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 |