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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 struct list_head fbdev_list;
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 struct drm_mode_fb_cmd2 *mode_cmd,
211 struct drm_gem_object *obj);
212
213
214int cirrus_modeset_init(struct cirrus_device *cdev);
215void cirrus_modeset_fini(struct cirrus_device *cdev);
216
217
218int cirrus_fbdev_init(struct cirrus_device *cdev);
219void cirrus_fbdev_fini(struct cirrus_device *cdev);
220
221
222
223
224void cirrus_driver_irq_preinstall(struct drm_device *dev);
225int cirrus_driver_irq_postinstall(struct drm_device *dev);
226void cirrus_driver_irq_uninstall(struct drm_device *dev);
227irqreturn_t cirrus_driver_irq_handler(int irq, void *arg);
228
229
230int cirrus_driver_load(struct drm_device *dev, unsigned long flags);
231int cirrus_driver_unload(struct drm_device *dev);
232extern struct drm_ioctl_desc cirrus_ioctls[];
233extern int cirrus_max_ioctl;
234
235int cirrus_mm_init(struct cirrus_device *cirrus);
236void cirrus_mm_fini(struct cirrus_device *cirrus);
237void cirrus_ttm_placement(struct cirrus_bo *bo, int domain);
238int cirrus_bo_create(struct drm_device *dev, int size, int align,
239 uint32_t flags, struct cirrus_bo **pcirrusbo);
240int cirrus_mmap(struct file *filp, struct vm_area_struct *vma);
241
242static inline int cirrus_bo_reserve(struct cirrus_bo *bo, bool no_wait)
243{
244 int ret;
245
246 ret = ttm_bo_reserve(&bo->bo, true, no_wait, false, NULL);
247 if (ret) {
248 if (ret != -ERESTARTSYS && ret != -EBUSY)
249 DRM_ERROR("reserve failed %p\n", bo);
250 return ret;
251 }
252 return 0;
253}
254
255static inline void cirrus_bo_unreserve(struct cirrus_bo *bo)
256{
257 ttm_bo_unreserve(&bo->bo);
258}
259
260int cirrus_bo_push_sysram(struct cirrus_bo *bo);
261int cirrus_bo_pin(struct cirrus_bo *bo, u32 pl_flag, u64 *gpu_addr);
262#endif
263