LXR linux/drivers/gpu/drm/bochs/bochs.h

   1#include <linux/io.h>
   2#include <linux/fb.h>
   3#include <linux/console.h>
   4
   5#include <drm/drmP.h>
   6#include <drm/drm_crtc.h>
   7#include <drm/drm_crtc_helper.h>
   8#include <drm/drm_fb_helper.h>
   9
  10#include <drm/drm_gem.h>
  11
  12#include <ttm/ttm_bo_driver.h>
  13#include <ttm/ttm_page_alloc.h>
  14
  15/* ---------------------------------------------------------------------- */
  16
  17#define VBE_DISPI_IOPORT_INDEX           0x01CE
  18#define VBE_DISPI_IOPORT_DATA            0x01CF
  19
  20#define VBE_DISPI_INDEX_ID               0x0
  21#define VBE_DISPI_INDEX_XRES             0x1
  22#define VBE_DISPI_INDEX_YRES             0x2
  23#define VBE_DISPI_INDEX_BPP              0x3
  24#define VBE_DISPI_INDEX_ENABLE           0x4
  25#define VBE_DISPI_INDEX_BANK             0x5
  26#define VBE_DISPI_INDEX_VIRT_WIDTH       0x6
  27#define VBE_DISPI_INDEX_VIRT_HEIGHT      0x7
  28#define VBE_DISPI_INDEX_X_OFFSET         0x8
  29#define VBE_DISPI_INDEX_Y_OFFSET         0x9
  30#define VBE_DISPI_INDEX_VIDEO_MEMORY_64K 0xa
  31
  32#define VBE_DISPI_ID0                    0xB0C0
  33#define VBE_DISPI_ID1                    0xB0C1
  34#define VBE_DISPI_ID2                    0xB0C2
  35#define VBE_DISPI_ID3                    0xB0C3
  36#define VBE_DISPI_ID4                    0xB0C4
  37#define VBE_DISPI_ID5                    0xB0C5
  38
  39#define VBE_DISPI_DISABLED               0x00
  40#define VBE_DISPI_ENABLED                0x01
  41#define VBE_DISPI_GETCAPS                0x02
  42#define VBE_DISPI_8BIT_DAC               0x20
  43#define VBE_DISPI_LFB_ENABLED            0x40
  44#define VBE_DISPI_NOCLEARMEM             0x80
  45
  46/* ---------------------------------------------------------------------- */
  47
  48enum bochs_types {
  49        BOCHS_QEMU_STDVGA,
  50        BOCHS_UNKNOWN,
  51};
  52
  53struct bochs_framebuffer {
  54        struct drm_framebuffer base;
  55        struct drm_gem_object *obj;
  56};
  57
  58struct bochs_device {
  59        /* hw */
  60        void __iomem   *mmio;
  61        int            ioports;
  62        void __iomem   *fb_map;
  63        unsigned long  fb_base;
  64        unsigned long  fb_size;
  65
  66        /* mode */
  67        u16 xres;
  68        u16 yres;
  69        u16 yres_virtual;
  70        u32 stride;
  71        u32 bpp;
  72
  73        /* drm */
  74        struct drm_device  *dev;
  75        struct drm_crtc crtc;
  76        struct drm_encoder encoder;
  77        struct drm_connector connector;
  78        bool mode_config_initialized;
  79
  80        /* ttm */
  81        struct {
  82                struct drm_global_reference mem_global_ref;
  83                struct ttm_bo_global_ref bo_global_ref;
  84                struct ttm_bo_device bdev;
  85                bool initialized;
  86        } ttm;
  87
  88        /* fbdev */
  89        struct {
  90                struct bochs_framebuffer gfb;
  91                struct drm_fb_helper helper;
  92                int size;
  93                bool initialized;
  94        } fb;
  95};
  96
  97#define to_bochs_framebuffer(x) container_of(x, struct bochs_framebuffer, base)
  98
  99struct bochs_bo {
 100        struct ttm_buffer_object bo;
 101        struct ttm_placement placement;
 102        struct ttm_bo_kmap_obj kmap;
 103        struct drm_gem_object gem;
 104        struct ttm_place placements[3];
 105        int pin_count;
 106};
 107
 108static inline struct bochs_bo *bochs_bo(struct ttm_buffer_object *bo)
 109{
 110        return container_of(bo, struct bochs_bo, bo);
 111}
 112
 113static inline struct bochs_bo *gem_to_bochs_bo(struct drm_gem_object *gem)
 114{
 115        return container_of(gem, struct bochs_bo, gem);
 116}
 117
 118#define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT)
 119
 120static inline u64 bochs_bo_mmap_offset(struct bochs_bo *bo)
 121{
 122        return drm_vma_node_offset_addr(&bo->bo.vma_node);
 123}
 124
 125/* ---------------------------------------------------------------------- */
 126
 127/* bochs_hw.c */
 128int bochs_hw_init(struct drm_device *dev, uint32_t flags);
 129void bochs_hw_fini(struct drm_device *dev);
 130
 131void bochs_hw_setmode(struct bochs_device *bochs,
 132                      struct drm_display_mode *mode);
 133void bochs_hw_setbase(struct bochs_device *bochs,
 134                      int x, int y, u64 addr);
 135
 136/* bochs_mm.c */
 137int bochs_mm_init(struct bochs_device *bochs);
 138void bochs_mm_fini(struct bochs_device *bochs);
 139int bochs_mmap(struct file *filp, struct vm_area_struct *vma);
 140
 141int bochs_gem_create(struct drm_device *dev, u32 size, bool iskernel,
 142                     struct drm_gem_object **obj);
 143int bochs_gem_init_object(struct drm_gem_object *obj);
 144void bochs_gem_free_object(struct drm_gem_object *obj);
 145int bochs_dumb_create(struct drm_file *file, struct drm_device *dev,
 146                      struct drm_mode_create_dumb *args);
 147int bochs_dumb_mmap_offset(struct drm_file *file, struct drm_device *dev,
 148                           uint32_t handle, uint64_t *offset);
 149
 150int bochs_framebuffer_init(struct drm_device *dev,
 151                           struct bochs_framebuffer *gfb,
 152                           const struct drm_mode_fb_cmd2 *mode_cmd,
 153                           struct drm_gem_object *obj);
 154int bochs_bo_pin(struct bochs_bo *bo, u32 pl_flag, u64 *gpu_addr);
 155int bochs_bo_unpin(struct bochs_bo *bo);
 156
 157extern const struct drm_mode_config_funcs bochs_mode_funcs;
 158
 159/* bochs_kms.c */
 160int bochs_kms_init(struct bochs_device *bochs);
 161void bochs_kms_fini(struct bochs_device *bochs);
 162
 163/* bochs_fbdev.c */
 164int bochs_fbdev_init(struct bochs_device *bochs);
 165void bochs_fbdev_fini(struct bochs_device *bochs);
 166