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

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