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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_encoder.h>
17#include <drm/drm_fb_helper.h>
18
19#include <drm/ttm/ttm_bo_api.h>
20#include <drm/ttm/ttm_bo_driver.h>
21#include <drm/ttm/ttm_placement.h>
22#include <drm/ttm/ttm_memory.h>
23#include <drm/ttm/ttm_module.h>
24
25#include <drm/drm_gem.h>
26
27#define DRIVER_AUTHOR "Matthew Garrett"
28
29#define DRIVER_NAME "cirrus"
30#define DRIVER_DESC "qemu Cirrus emulation"
31#define DRIVER_DATE "20110418"
32
33#define DRIVER_MAJOR 1
34#define DRIVER_MINOR 0
35#define DRIVER_PATCHLEVEL 0
36
37#define CIRRUSFB_CONN_LIMIT 1
38
39#define RREG8(reg) ioread8(((void __iomem *)cdev->rmmio) + (reg))
40#define WREG8(reg, v) iowrite8(v, ((void __iomem *)cdev->rmmio) + (reg))
41#define RREG32(reg) ioread32(((void __iomem *)cdev->rmmio) + (reg))
42#define WREG32(reg, v) iowrite32(v, ((void __iomem *)cdev->rmmio) + (reg))
43
44#define SEQ_INDEX 4
45#define SEQ_DATA 5
46
47#define WREG_SEQ(reg, v) \
48 do { \
49 WREG8(SEQ_INDEX, reg); \
50 WREG8(SEQ_DATA, v); \
51 } while (0) \
52
53#define CRT_INDEX 0x14
54#define CRT_DATA 0x15
55
56#define WREG_CRT(reg, v) \
57 do { \
58 WREG8(CRT_INDEX, reg); \
59 WREG8(CRT_DATA, v); \
60 } while (0) \
61
62#define GFX_INDEX 0xe
63#define GFX_DATA 0xf
64
65#define WREG_GFX(reg, v) \
66 do { \
67 WREG8(GFX_INDEX, reg); \
68 WREG8(GFX_DATA, v); \
69 } while (0) \
70
71
72
73
74
75
76#define VGA_DAC_MASK 0x6
77
78#define WREG_HDR(v) \
79 do { \
80 RREG8(VGA_DAC_MASK); \
81 RREG8(VGA_DAC_MASK); \
82 RREG8(VGA_DAC_MASK); \
83 RREG8(VGA_DAC_MASK); \
84 WREG8(VGA_DAC_MASK, v); \
85 } while (0) \
86
87
88#define CIRRUS_MAX_FB_HEIGHT 4096
89#define CIRRUS_MAX_FB_WIDTH 4096
90
91#define CIRRUS_DPMS_CLEARED (-1)
92
93#define to_cirrus_crtc(x) container_of(x, struct cirrus_crtc, base)
94#define to_cirrus_encoder(x) container_of(x, struct cirrus_encoder, base)
95#define to_cirrus_framebuffer(x) container_of(x, struct cirrus_framebuffer, base)
96
97struct cirrus_crtc {
98 struct drm_crtc base;
99 u8 lut_r[256], lut_g[256], lut_b[256];
100 int last_dpms;
101 bool enabled;
102};
103
104struct cirrus_fbdev;
105struct cirrus_mode_info {
106 bool mode_config_initialized;
107 struct cirrus_crtc *crtc;
108
109 struct cirrus_fbdev *gfbdev;
110};
111
112struct cirrus_encoder {
113 struct drm_encoder base;
114 int last_dpms;
115};
116
117struct cirrus_connector {
118 struct drm_connector base;
119};
120
121struct cirrus_framebuffer {
122 struct drm_framebuffer base;
123 struct drm_gem_object *obj;
124};
125
126struct cirrus_mc {
127 resource_size_t vram_size;
128 resource_size_t vram_base;
129};
130
131struct cirrus_device {
132 struct drm_device *dev;
133 unsigned long flags;
134
135 resource_size_t rmmio_base;
136 resource_size_t rmmio_size;
137 void __iomem *rmmio;
138
139 struct cirrus_mc mc;
140 struct cirrus_mode_info mode_info;
141
142 int num_crtc;
143 int fb_mtrr;
144
145 struct {
146 struct drm_global_reference mem_global_ref;
147 struct ttm_bo_global_ref bo_global_ref;
148 struct ttm_bo_device bdev;
149 } ttm;
150 bool mm_inited;
151};
152
153
154struct cirrus_fbdev {
155 struct drm_fb_helper helper;
156 struct cirrus_framebuffer gfb;
157 void *sysram;
158 int size;
159 int x1, y1, x2, y2;
160 spinlock_t dirty_lock;
161};
162
163struct cirrus_bo {
164 struct ttm_buffer_object bo;
165 struct ttm_placement placement;
166 struct ttm_bo_kmap_obj kmap;
167 struct drm_gem_object gem;
168 struct ttm_place placements[3];
169 int pin_count;
170};
171#define gem_to_cirrus_bo(gobj) container_of((gobj), struct cirrus_bo, gem)
172
173static inline struct cirrus_bo *
174cirrus_bo(struct ttm_buffer_object *bo)
175{
176 return container_of(bo, struct cirrus_bo, bo);
177}
178
179
180#define to_cirrus_obj(x) container_of(x, struct cirrus_gem_object, base)
181#define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT)
182
183
184void cirrus_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
185 u16 blue, int regno);
186void cirrus_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
187 u16 *blue, int regno);
188
189
190
191int cirrus_device_init(struct cirrus_device *cdev,
192 struct drm_device *ddev,
193 struct pci_dev *pdev,
194 uint32_t flags);
195void cirrus_device_fini(struct cirrus_device *cdev);
196void cirrus_gem_free_object(struct drm_gem_object *obj);
197int cirrus_dumb_mmap_offset(struct drm_file *file,
198 struct drm_device *dev,
199 uint32_t handle,
200 uint64_t *offset);
201int cirrus_gem_create(struct drm_device *dev,
202 u32 size, bool iskernel,
203 struct drm_gem_object **obj);
204int cirrus_dumb_create(struct drm_file *file,
205 struct drm_device *dev,
206 struct drm_mode_create_dumb *args);
207
208int cirrus_framebuffer_init(struct drm_device *dev,
209 struct cirrus_framebuffer *gfb,
210 const struct drm_mode_fb_cmd2 *mode_cmd,
211 struct drm_gem_object *obj);
212
213bool cirrus_check_framebuffer(struct cirrus_device *cdev, int width, int height,
214 int bpp, int pitch);
215
216
217int cirrus_modeset_init(struct cirrus_device *cdev);
218void cirrus_modeset_fini(struct cirrus_device *cdev);
219
220
221int cirrus_fbdev_init(struct cirrus_device *cdev);
222void cirrus_fbdev_fini(struct cirrus_device *cdev);
223
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225
226
227void cirrus_driver_irq_preinstall(struct drm_device *dev);
228int cirrus_driver_irq_postinstall(struct drm_device *dev);
229void cirrus_driver_irq_uninstall(struct drm_device *dev);
230irqreturn_t cirrus_driver_irq_handler(int irq, void *arg);
231
232
233int cirrus_driver_load(struct drm_device *dev, unsigned long flags);
234void cirrus_driver_unload(struct drm_device *dev);
235extern struct drm_ioctl_desc cirrus_ioctls[];
236extern int cirrus_max_ioctl;
237
238int cirrus_mm_init(struct cirrus_device *cirrus);
239void cirrus_mm_fini(struct cirrus_device *cirrus);
240void cirrus_ttm_placement(struct cirrus_bo *bo, int domain);
241int cirrus_bo_create(struct drm_device *dev, int size, int align,
242 uint32_t flags, struct cirrus_bo **pcirrusbo);
243int cirrus_mmap(struct file *filp, struct vm_area_struct *vma);
244
245static inline int cirrus_bo_reserve(struct cirrus_bo *bo, bool no_wait)
246{
247 int ret;
248
249 ret = ttm_bo_reserve(&bo->bo, true, no_wait, NULL);
250 if (ret) {
251 if (ret != -ERESTARTSYS && ret != -EBUSY)
252 DRM_ERROR("reserve failed %p\n", bo);
253 return ret;
254 }
255 return 0;
256}
257
258static inline void cirrus_bo_unreserve(struct cirrus_bo *bo)
259{
260 ttm_bo_unreserve(&bo->bo);
261}
262
263int cirrus_bo_push_sysram(struct cirrus_bo *bo);
264int cirrus_bo_pin(struct cirrus_bo *bo, u32 pl_flag, u64 *gpu_addr);
265
266extern int cirrus_bpp;
267
268#endif
269