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11#ifndef __CIRRUS_DRV_H__
12#define __CIRRUS_DRV_H__
13
14#include <video/vga.h>
15
16#include <drm/drm_fb_helper.h>
17
18#include <drm/ttm/ttm_bo_api.h>
19#include <drm/ttm/ttm_bo_driver.h>
20#include <drm/ttm/ttm_placement.h>
21#include <drm/ttm/ttm_memory.h>
22#include <drm/ttm/ttm_module.h>
23
24#include <drm/drm_gem.h>
25
26#define DRIVER_AUTHOR "Matthew Garrett"
27
28#define DRIVER_NAME "cirrus"
29#define DRIVER_DESC "qemu Cirrus emulation"
30#define DRIVER_DATE "20110418"
31
32#define DRIVER_MAJOR 1
33#define DRIVER_MINOR 0
34#define DRIVER_PATCHLEVEL 0
35
36#define CIRRUSFB_CONN_LIMIT 1
37
38#define RREG8(reg) ioread8(((void __iomem *)cdev->rmmio) + (reg))
39#define WREG8(reg, v) iowrite8(v, ((void __iomem *)cdev->rmmio) + (reg))
40#define RREG32(reg) ioread32(((void __iomem *)cdev->rmmio) + (reg))
41#define WREG32(reg, v) iowrite32(v, ((void __iomem *)cdev->rmmio) + (reg))
42
43#define SEQ_INDEX 4
44#define SEQ_DATA 5
45
46#define WREG_SEQ(reg, v) \
47 do { \
48 WREG8(SEQ_INDEX, reg); \
49 WREG8(SEQ_DATA, v); \
50 } while (0) \
51
52#define CRT_INDEX 0x14
53#define CRT_DATA 0x15
54
55#define WREG_CRT(reg, v) \
56 do { \
57 WREG8(CRT_INDEX, reg); \
58 WREG8(CRT_DATA, v); \
59 } while (0) \
60
61#define GFX_INDEX 0xe
62#define GFX_DATA 0xf
63
64#define WREG_GFX(reg, v) \
65 do { \
66 WREG8(GFX_INDEX, reg); \
67 WREG8(GFX_DATA, v); \
68 } while (0) \
69
70
71
72
73
74
75#define VGA_DAC_MASK 0x6
76
77#define WREG_HDR(v) \
78 do { \
79 RREG8(VGA_DAC_MASK); \
80 RREG8(VGA_DAC_MASK); \
81 RREG8(VGA_DAC_MASK); \
82 RREG8(VGA_DAC_MASK); \
83 WREG8(VGA_DAC_MASK, v); \
84 } while (0) \
85
86
87#define CIRRUS_MAX_FB_HEIGHT 4096
88#define CIRRUS_MAX_FB_WIDTH 4096
89
90#define CIRRUS_DPMS_CLEARED (-1)
91
92#define to_cirrus_crtc(x) container_of(x, struct cirrus_crtc, base)
93#define to_cirrus_encoder(x) container_of(x, struct cirrus_encoder, base)
94#define to_cirrus_framebuffer(x) container_of(x, struct cirrus_framebuffer, base)
95
96struct cirrus_crtc {
97 struct drm_crtc base;
98 u8 lut_r[256], lut_g[256], lut_b[256];
99 int last_dpms;
100 bool enabled;
101};
102
103struct cirrus_fbdev;
104struct cirrus_mode_info {
105 bool mode_config_initialized;
106 struct cirrus_crtc *crtc;
107
108 struct cirrus_fbdev *gfbdev;
109};
110
111struct cirrus_encoder {
112 struct drm_encoder base;
113 int last_dpms;
114};
115
116struct cirrus_connector {
117 struct drm_connector base;
118};
119
120struct cirrus_framebuffer {
121 struct drm_framebuffer base;
122 struct drm_gem_object *obj;
123};
124
125struct cirrus_mc {
126 resource_size_t vram_size;
127 resource_size_t vram_base;
128};
129
130struct cirrus_device {
131 struct drm_device *dev;
132 unsigned long flags;
133
134 resource_size_t rmmio_base;
135 resource_size_t rmmio_size;
136 void __iomem *rmmio;
137
138 struct cirrus_mc mc;
139 struct cirrus_mode_info mode_info;
140
141 int num_crtc;
142 int fb_mtrr;
143
144 struct {
145 struct drm_global_reference mem_global_ref;
146 struct ttm_bo_global_ref bo_global_ref;
147 struct ttm_bo_device bdev;
148 } ttm;
149 bool mm_inited;
150};
151
152
153struct cirrus_fbdev {
154 struct drm_fb_helper helper;
155 struct cirrus_framebuffer gfb;
156 void *sysram;
157 int size;
158 int x1, y1, x2, y2;
159 spinlock_t dirty_lock;
160};
161
162struct cirrus_bo {
163 struct ttm_buffer_object bo;
164 struct ttm_placement placement;
165 struct ttm_bo_kmap_obj kmap;
166 struct drm_gem_object gem;
167 struct ttm_place placements[3];
168 int pin_count;
169};
170#define gem_to_cirrus_bo(gobj) container_of((gobj), struct cirrus_bo, gem)
171
172static inline struct cirrus_bo *
173cirrus_bo(struct ttm_buffer_object *bo)
174{
175 return container_of(bo, struct cirrus_bo, bo);
176}
177
178
179#define to_cirrus_obj(x) container_of(x, struct cirrus_gem_object, base)
180#define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT)
181
182
183void cirrus_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
184 u16 blue, int regno);
185void cirrus_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
186 u16 *blue, int regno);
187
188
189
190int cirrus_device_init(struct cirrus_device *cdev,
191 struct drm_device *ddev,
192 struct pci_dev *pdev,
193 uint32_t flags);
194void cirrus_device_fini(struct cirrus_device *cdev);
195void cirrus_gem_free_object(struct drm_gem_object *obj);
196int cirrus_dumb_mmap_offset(struct drm_file *file,
197 struct drm_device *dev,
198 uint32_t handle,
199 uint64_t *offset);
200int cirrus_gem_create(struct drm_device *dev,
201 u32 size, bool iskernel,
202 struct drm_gem_object **obj);
203int cirrus_dumb_create(struct drm_file *file,
204 struct drm_device *dev,
205 struct drm_mode_create_dumb *args);
206
207int cirrus_framebuffer_init(struct drm_device *dev,
208 struct cirrus_framebuffer *gfb,
209 const struct drm_mode_fb_cmd2 *mode_cmd,
210 struct drm_gem_object *obj);
211
212bool cirrus_check_framebuffer(struct cirrus_device *cdev, int width, int height,
213 int bpp, int pitch);
214
215
216int cirrus_modeset_init(struct cirrus_device *cdev);
217void cirrus_modeset_fini(struct cirrus_device *cdev);
218
219
220int cirrus_fbdev_init(struct cirrus_device *cdev);
221void cirrus_fbdev_fini(struct cirrus_device *cdev);
222
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225
226void cirrus_driver_irq_preinstall(struct drm_device *dev);
227int cirrus_driver_irq_postinstall(struct drm_device *dev);
228void cirrus_driver_irq_uninstall(struct drm_device *dev);
229irqreturn_t cirrus_driver_irq_handler(int irq, void *arg);
230
231
232int cirrus_driver_load(struct drm_device *dev, unsigned long flags);
233int cirrus_driver_unload(struct drm_device *dev);
234extern struct drm_ioctl_desc cirrus_ioctls[];
235extern int cirrus_max_ioctl;
236
237int cirrus_mm_init(struct cirrus_device *cirrus);
238void cirrus_mm_fini(struct cirrus_device *cirrus);
239void cirrus_ttm_placement(struct cirrus_bo *bo, int domain);
240int cirrus_bo_create(struct drm_device *dev, int size, int align,
241 uint32_t flags, struct cirrus_bo **pcirrusbo);
242int cirrus_mmap(struct file *filp, struct vm_area_struct *vma);
243
244static inline int cirrus_bo_reserve(struct cirrus_bo *bo, bool no_wait)
245{
246 int ret;
247
248 ret = ttm_bo_reserve(&bo->bo, true, no_wait, false, NULL);
249 if (ret) {
250 if (ret != -ERESTARTSYS && ret != -EBUSY)
251 DRM_ERROR("reserve failed %p\n", bo);
252 return ret;
253 }
254 return 0;
255}
256
257static inline void cirrus_bo_unreserve(struct cirrus_bo *bo)
258{
259 ttm_bo_unreserve(&bo->bo);
260}
261
262int cirrus_bo_push_sysram(struct cirrus_bo *bo);
263int cirrus_bo_pin(struct cirrus_bo *bo, u32 pl_flag, u64 *gpu_addr);
264
265extern int cirrus_bpp;
266
267#endif
268
