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gerrit-public.fairphone.software / kernel / msm-5.4 / 0a6659bdc5e8221da99eebb176fd9591435e38de / . / drivers / gpu / drm / bochs / bochs.h
blob: 741965c001a687e42f20ca40160e4bd52d383e9b [file] [log] [blame]
Gerd Hoffmann0a6659b2013-12-17 18:04:46 +0100[diff] [blame^]1#include <linux/io.h>
2#include <linux/fb.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 <ttm/ttm_bo_driver.h>
10#include <ttm/ttm_page_alloc.h>
11
12/* ---------------------------------------------------------------------- */
13
14#define VBE_DISPI_IOPORT_INDEX 0x01CE
15#define VBE_DISPI_IOPORT_DATA 0x01CF
16
17#define VBE_DISPI_INDEX_ID 0x0
18#define VBE_DISPI_INDEX_XRES 0x1
19#define VBE_DISPI_INDEX_YRES 0x2
20#define VBE_DISPI_INDEX_BPP 0x3
21#define VBE_DISPI_INDEX_ENABLE 0x4
22#define VBE_DISPI_INDEX_BANK 0x5
23#define VBE_DISPI_INDEX_VIRT_WIDTH 0x6
24#define VBE_DISPI_INDEX_VIRT_HEIGHT 0x7
25#define VBE_DISPI_INDEX_X_OFFSET 0x8
26#define VBE_DISPI_INDEX_Y_OFFSET 0x9
27#define VBE_DISPI_INDEX_VIDEO_MEMORY_64K 0xa
28
29#define VBE_DISPI_ID0 0xB0C0
30#define VBE_DISPI_ID1 0xB0C1
31#define VBE_DISPI_ID2 0xB0C2
32#define VBE_DISPI_ID3 0xB0C3
33#define VBE_DISPI_ID4 0xB0C4
34#define VBE_DISPI_ID5 0xB0C5
35
36#define VBE_DISPI_DISABLED 0x00
37#define VBE_DISPI_ENABLED 0x01
38#define VBE_DISPI_GETCAPS 0x02
39#define VBE_DISPI_8BIT_DAC 0x20
40#define VBE_DISPI_LFB_ENABLED 0x40
41#define VBE_DISPI_NOCLEARMEM 0x80
42
43/* ---------------------------------------------------------------------- */
44
45enum bochs_types {
46 BOCHS_QEMU_STDVGA,
47 BOCHS_UNKNOWN,
48};
49
50struct bochs_framebuffer {
51 struct drm_framebuffer base;
52 struct drm_gem_object *obj;
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
63 /* mode */
64 u16 xres;
65 u16 yres;
66 u16 yres_virtual;
67 u32 stride;
68 u32 bpp;
69
70 /* drm */
71 struct drm_device *dev;
72 struct drm_crtc crtc;
73 struct drm_encoder encoder;
74 struct drm_connector connector;
75 bool mode_config_initialized;
76
77 /* ttm */
78 struct {
79 struct drm_global_reference mem_global_ref;
80 struct ttm_bo_global_ref bo_global_ref;
81 struct ttm_bo_device bdev;
82 bool initialized;
83 } ttm;
84
85 /* fbdev */
86 struct {
87 struct bochs_framebuffer gfb;
88 struct drm_fb_helper helper;
89 int size;
90 int x1, y1, x2, y2; /* dirty rect */
91 spinlock_t dirty_lock;
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 u32 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 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);