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ast_drv.h
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1 /*
2  * Copyright 2012 Red Hat Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the
6  * "Software"), to deal in the Software without restriction, including
7  * without limitation the rights to use, copy, modify, merge, publish,
8  * distribute, sub license, and/or sell copies of the Software, and to
9  * permit persons to whom the Software is furnished to do so, subject to
10  * the following conditions:
11  *
12  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
13  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
14  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
15  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
16  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
17  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
18  * USE OR OTHER DEALINGS IN THE SOFTWARE.
19  *
20  * The above copyright notice and this permission notice (including the
21  * next paragraph) shall be included in all copies or substantial portions
22  * of the Software.
23  *
24  */
25 /*
26  * Authors: Dave Airlie <[email protected]>
27  */
28 #ifndef __AST_DRV_H__
29 #define __AST_DRV_H__
30 
31 #include <drm/drm_fb_helper.h>
32 
33 #include <drm/ttm/ttm_bo_api.h>
34 #include <drm/ttm/ttm_bo_driver.h>
35 #include <drm/ttm/ttm_placement.h>
36 #include <drm/ttm/ttm_memory.h>
37 #include <drm/ttm/ttm_module.h>
38 
39 #include <linux/i2c.h>
40 #include <linux/i2c-algo-bit.h>
41 
42 #define DRIVER_AUTHOR "Dave Airlie"
43 
44 #define DRIVER_NAME "ast"
45 #define DRIVER_DESC "AST"
46 #define DRIVER_DATE "20120228"
47 
48 #define DRIVER_MAJOR 0
49 #define DRIVER_MINOR 1
50 #define DRIVER_PATCHLEVEL 0
51 
52 #define PCI_CHIP_AST2000 0x2000
53 #define PCI_CHIP_AST2100 0x2010
54 #define PCI_CHIP_AST1180 0x1180
55 
56 
57 enum ast_chip {
65 };
66 
67 #define AST_DRAM_512Mx16 0
68 #define AST_DRAM_1Gx16 1
69 #define AST_DRAM_512Mx32 2
70 #define AST_DRAM_1Gx32 3
71 #define AST_DRAM_2Gx16 6
72 #define AST_DRAM_4Gx16 7
73 
74 struct ast_fbdev;
75 
76 struct ast_private {
77  struct drm_device *dev;
78 
79  void __iomem *regs;
80  void __iomem *ioregs;
81 
82  enum ast_chip chip;
83  bool vga2_clone;
88 
89  struct ast_fbdev *fbdev;
90 
91  int fb_mtrr;
92 
93  struct {
97  } ttm;
98 
99  struct drm_gem_object *cursor_cache;
103 };
104 
105 int ast_driver_load(struct drm_device *dev, unsigned long flags);
106 int ast_driver_unload(struct drm_device *dev);
107 
108 struct ast_gem_object;
109 
110 #define AST_IO_AR_PORT_WRITE (0x40)
111 #define AST_IO_MISC_PORT_WRITE (0x42)
112 #define AST_IO_SEQ_PORT (0x44)
113 #define AST_DAC_INDEX_READ (0x3c7)
114 #define AST_IO_DAC_INDEX_WRITE (0x48)
115 #define AST_IO_DAC_DATA (0x49)
116 #define AST_IO_GR_PORT (0x4E)
117 #define AST_IO_CRTC_PORT (0x54)
118 #define AST_IO_INPUT_STATUS1_READ (0x5A)
119 #define AST_IO_MISC_PORT_READ (0x4C)
120 
121 #define __ast_read(x) \
122 static inline u##x ast_read##x(struct ast_private *ast, u32 reg) { \
123 u##x val = 0;\
124 val = ioread##x(ast->regs + reg); \
125 return val;\
126 }
127 
128 __ast_read(8);
129 __ast_read(16);
130 __ast_read(32)
131 
132 #define __ast_io_read(x) \
133 static inline u##x ast_io_read##x(struct ast_private *ast, u32 reg) { \
134 u##x val = 0;\
135 val = ioread##x(ast->ioregs + reg); \
136 return val;\
137 }
138 
139 __ast_io_read(8);
140 __ast_io_read(16);
141 __ast_io_read(32);
142 
143 #define __ast_write(x) \
144 static inline void ast_write##x(struct ast_private *ast, u32 reg, u##x val) {\
145  iowrite##x(val, ast->regs + reg);\
146  }
147 
148 __ast_write(8);
149 __ast_write(16);
150 __ast_write(32);
151 
152 #define __ast_io_write(x) \
153 static inline void ast_io_write##x(struct ast_private *ast, u32 reg, u##x val) {\
154  iowrite##x(val, ast->ioregs + reg);\
155  }
156 
157 __ast_io_write(8);
158 __ast_io_write(16);
159 #undef __ast_io_write
160 
161 static inline void ast_set_index_reg(struct ast_private *ast,
162  uint32_t base, uint8_t index,
163  uint8_t val)
164 {
165  ast_io_write16(ast, base, ((u16)val << 8) | index);
166 }
167 
168 void ast_set_index_reg_mask(struct ast_private *ast,
169  uint32_t base, uint8_t index,
170  uint8_t mask, uint8_t val);
172  uint32_t base, uint8_t index);
174  uint32_t base, uint8_t index, uint8_t mask);
175 
176 static inline void ast_open_key(struct ast_private *ast)
177 {
178  ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xA1, 0xFF, 0x04);
179 }
180 
181 #define AST_VIDMEM_SIZE_8M 0x00800000
182 #define AST_VIDMEM_SIZE_16M 0x01000000
183 #define AST_VIDMEM_SIZE_32M 0x02000000
184 #define AST_VIDMEM_SIZE_64M 0x04000000
185 #define AST_VIDMEM_SIZE_128M 0x08000000
186 
187 #define AST_VIDMEM_DEFAULT_SIZE AST_VIDMEM_SIZE_8M
188 
189 #define AST_MAX_HWC_WIDTH 64
190 #define AST_MAX_HWC_HEIGHT 64
191 
192 #define AST_HWC_SIZE (AST_MAX_HWC_WIDTH*AST_MAX_HWC_HEIGHT*2)
193 #define AST_HWC_SIGNATURE_SIZE 32
194 
195 #define AST_DEFAULT_HWC_NUM 2
196 /* define for signature structure */
197 #define AST_HWC_SIGNATURE_CHECKSUM 0x00
198 #define AST_HWC_SIGNATURE_SizeX 0x04
199 #define AST_HWC_SIGNATURE_SizeY 0x08
200 #define AST_HWC_SIGNATURE_X 0x0C
201 #define AST_HWC_SIGNATURE_Y 0x10
202 #define AST_HWC_SIGNATURE_HOTSPOTX 0x14
203 #define AST_HWC_SIGNATURE_HOTSPOTY 0x18
204 
205 
206 struct ast_i2c_chan {
208  struct drm_device *dev;
210 };
211 
213  struct drm_connector base;
214  struct ast_i2c_chan *i2c;
215 };
216 
217 struct ast_crtc {
218  struct drm_crtc base;
219  u8 lut_r[256], lut_g[256], lut_b[256];
220  struct drm_gem_object *cursor_bo;
224 };
225 
226 struct ast_encoder {
227  struct drm_encoder base;
228 };
229 
231  struct drm_framebuffer base;
232  struct drm_gem_object *obj;
233 };
234 
235 struct ast_fbdev {
239  void *sysram;
240  int size;
242 };
243 
244 #define to_ast_crtc(x) container_of(x, struct ast_crtc, base)
245 #define to_ast_connector(x) container_of(x, struct ast_connector, base)
246 #define to_ast_encoder(x) container_of(x, struct ast_encoder, base)
247 #define to_ast_framebuffer(x) container_of(x, struct ast_framebuffer, base)
248 
251  u8 seq[4];
252  u8 crtc[25];
253  u8 ar[20];
254  u8 gr[9];
255 };
256 
271 };
272 
277 };
278 
282 };
283 
284 extern int ast_mode_init(struct drm_device *dev);
285 extern void ast_mode_fini(struct drm_device *dev);
286 
288  struct ast_framebuffer *ast_fb,
289  struct drm_mode_fb_cmd2 *mode_cmd,
290  struct drm_gem_object *obj);
291 
292 int ast_fbdev_init(struct drm_device *dev);
293 void ast_fbdev_fini(struct drm_device *dev);
294 void ast_fbdev_set_suspend(struct drm_device *dev, int state);
295 
296 struct ast_bo {
300  struct drm_gem_object gem;
303 };
304 #define gem_to_ast_bo(gobj) container_of((gobj), struct ast_bo, gem)
305 
306 static inline struct ast_bo *
307 ast_bo(struct ttm_buffer_object *bo)
308 {
309  return container_of(bo, struct ast_bo, bo);
310 }
311 
312 
313 #define to_ast_obj(x) container_of(x, struct ast_gem_object, base)
314 
315 #define AST_MM_ALIGN_SHIFT 4
316 #define AST_MM_ALIGN_MASK ((1 << AST_MM_ALIGN_SHIFT) - 1)
317 
318 extern int ast_dumb_create(struct drm_file *file,
319  struct drm_device *dev,
320  struct drm_mode_create_dumb *args);
321 extern int ast_dumb_destroy(struct drm_file *file,
322  struct drm_device *dev,
323  uint32_t handle);
324 
325 extern int ast_gem_init_object(struct drm_gem_object *obj);
326 extern void ast_gem_free_object(struct drm_gem_object *obj);
327 extern int ast_dumb_mmap_offset(struct drm_file *file,
328  struct drm_device *dev,
330  uint64_t *offset);
331 
332 #define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT)
333 
334 int ast_mm_init(struct ast_private *ast);
335 void ast_mm_fini(struct ast_private *ast);
336 
337 int ast_bo_create(struct drm_device *dev, int size, int align,
338  uint32_t flags, struct ast_bo **pastbo);
339 
340 int ast_gem_create(struct drm_device *dev,
341  u32 size, bool iskernel,
342  struct drm_gem_object **obj);
343 
344 int ast_bo_pin(struct ast_bo *bo, u32 pl_flag, u64 *gpu_addr);
345 int ast_bo_unpin(struct ast_bo *bo);
346 
347 int ast_bo_reserve(struct ast_bo *bo, bool no_wait);
348 void ast_bo_unreserve(struct ast_bo *bo);
349 void ast_ttm_placement(struct ast_bo *bo, int domain);
350 int ast_bo_push_sysram(struct ast_bo *bo);
351 int ast_mmap(struct file *filp, struct vm_area_struct *vma);
352 
353 /* ast post */
354 void ast_post_gpu(struct drm_device *dev);
355 #endif