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

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#include <linux/io.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_encoder.h>
   9#include <drm/drm_fb_helper.h>
  10#include <drm/drm_simple_kms_helper.h>
  11
  12#include <drm/drm_gem.h>
  13
  14#include <drm/ttm/ttm_bo_driver.h>
  15#include <drm/ttm/ttm_page_alloc.h>
  16
  17/* ---------------------------------------------------------------------- */
  18
  19#define VBE_DISPI_IOPORT_INDEX           0x01CE
  20#define VBE_DISPI_IOPORT_DATA            0x01CF
  21
  22#define VBE_DISPI_INDEX_ID               0x0
  23#define VBE_DISPI_INDEX_XRES             0x1
  24#define VBE_DISPI_INDEX_YRES             0x2
  25#define VBE_DISPI_INDEX_BPP              0x3
  26#define VBE_DISPI_INDEX_ENABLE           0x4
  27#define VBE_DISPI_INDEX_BANK             0x5
  28#define VBE_DISPI_INDEX_VIRT_WIDTH       0x6
  29#define VBE_DISPI_INDEX_VIRT_HEIGHT      0x7
  30#define VBE_DISPI_INDEX_X_OFFSET         0x8
  31#define VBE_DISPI_INDEX_Y_OFFSET         0x9
  32#define VBE_DISPI_INDEX_VIDEO_MEMORY_64K 0xa
  33
  34#define VBE_DISPI_ID0                    0xB0C0
  35#define VBE_DISPI_ID1                    0xB0C1
  36#define VBE_DISPI_ID2                    0xB0C2
  37#define VBE_DISPI_ID3                    0xB0C3
  38#define VBE_DISPI_ID4                    0xB0C4
  39#define VBE_DISPI_ID5                    0xB0C5
  40
  41#define VBE_DISPI_DISABLED               0x00
  42#define VBE_DISPI_ENABLED                0x01
  43#define VBE_DISPI_GETCAPS                0x02
  44#define VBE_DISPI_8BIT_DAC               0x20
  45#define VBE_DISPI_LFB_ENABLED            0x40
  46#define VBE_DISPI_NOCLEARMEM             0x80
  47
  48/* ---------------------------------------------------------------------- */
  49
  50enum bochs_types {
  51        BOCHS_QEMU_STDVGA,
  52        BOCHS_UNKNOWN,
  53};
  54
  55struct bochs_device {
  56        /* hw */
  57        void __iomem   *mmio;
  58        int            ioports;
  59        void __iomem   *fb_map;
  60        unsigned long  fb_base;
  61        unsigned long  fb_size;
  62        unsigned long  qext_size;
  63
  64        /* mode */
  65        u16 xres;
  66        u16 yres;
  67        u16 yres_virtual;
  68        u32 stride;
  69        u32 bpp;
  70        struct edid *edid;
  71
  72        /* drm */
  73        struct drm_device *dev;
  74        struct drm_simple_display_pipe pipe;
  75        struct drm_connector connector;
  76
  77        /* ttm */
  78        struct {
  79                struct ttm_bo_device bdev;
  80                bool initialized;
  81        } ttm;
  82};
  83
  84struct bochs_bo {
  85        struct ttm_buffer_object bo;
  86        struct ttm_placement placement;
  87        struct ttm_bo_kmap_obj kmap;
  88        struct drm_gem_object gem;
  89        struct ttm_place placements[3];
  90        int pin_count;
  91};
  92
  93static inline struct bochs_bo *bochs_bo(struct ttm_buffer_object *bo)
  94{
  95        return container_of(bo, struct bochs_bo, bo);
  96}
  97
  98static inline struct bochs_bo *gem_to_bochs_bo(struct drm_gem_object *gem)
  99{
 100        return container_of(gem, struct bochs_bo, gem);
 101}
 102
 103static inline u64 bochs_bo_mmap_offset(struct bochs_bo *bo)
 104{
 105        return drm_vma_node_offset_addr(&bo->bo.vma_node);
 106}
 107
 108/* ---------------------------------------------------------------------- */
 109
 110/* bochs_hw.c */
 111int bochs_hw_init(struct drm_device *dev);
 112void bochs_hw_fini(struct drm_device *dev);
 113
 114void bochs_hw_setmode(struct bochs_device *bochs,
 115                      struct drm_display_mode *mode);
 116void bochs_hw_setformat(struct bochs_device *bochs,
 117                        const struct drm_format_info *format);
 118void bochs_hw_setbase(struct bochs_device *bochs,
 119                      int x, int y, u64 addr);
 120int bochs_hw_load_edid(struct bochs_device *bochs);
 121
 122/* bochs_mm.c */
 123int bochs_mm_init(struct bochs_device *bochs);
 124void bochs_mm_fini(struct bochs_device *bochs);
 125int bochs_mmap(struct file *filp, struct vm_area_struct *vma);
 126
 127int bochs_gem_create(struct drm_device *dev, u32 size, bool iskernel,
 128                     struct drm_gem_object **obj);
 129int bochs_gem_init_object(struct drm_gem_object *obj);
 130void bochs_gem_free_object(struct drm_gem_object *obj);
 131int bochs_dumb_create(struct drm_file *file, struct drm_device *dev,
 132                      struct drm_mode_create_dumb *args);
 133int bochs_dumb_mmap_offset(struct drm_file *file, struct drm_device *dev,
 134                           uint32_t handle, uint64_t *offset);
 135
 136int bochs_bo_pin(struct bochs_bo *bo, u32 pl_flag);
 137int bochs_bo_unpin(struct bochs_bo *bo);
 138
 139int bochs_gem_prime_pin(struct drm_gem_object *obj);
 140void bochs_gem_prime_unpin(struct drm_gem_object *obj);
 141void *bochs_gem_prime_vmap(struct drm_gem_object *obj);
 142void bochs_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
 143int bochs_gem_prime_mmap(struct drm_gem_object *obj,
 144                         struct vm_area_struct *vma);
 145
 146/* bochs_kms.c */
 147int bochs_kms_init(struct bochs_device *bochs);
 148void bochs_kms_fini(struct bochs_device *bochs);
 149
 150/* bochs_fbdev.c */
 151extern const struct drm_mode_config_funcs bochs_mode_funcs;
 152