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