tjh.dev
Linux kernel mirror (for testing)
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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 <airlied@redhat.com>
27 */
28#ifndef __AST_DRV_H__
29#define __AST_DRV_H__
30
31#include <drm/drm_encoder.h>
32#include <drm/drm_fb_helper.h>
33
34#include <drm/ttm/ttm_bo_api.h>
35#include <drm/ttm/ttm_bo_driver.h>
36#include <drm/ttm/ttm_placement.h>
37#include <drm/ttm/ttm_memory.h>
38#include <drm/ttm/ttm_module.h>
39
40#include <drm/drm_gem.h>
41
42#include <linux/i2c.h>
43#include <linux/i2c-algo-bit.h>
44
45#define DRIVER_AUTHOR "Dave Airlie"
46
47#define DRIVER_NAME "ast"
48#define DRIVER_DESC "AST"
49#define DRIVER_DATE "20120228"
50
51#define DRIVER_MAJOR 0
52#define DRIVER_MINOR 1
53#define DRIVER_PATCHLEVEL 0
54
55#define PCI_CHIP_AST2000 0x2000
56#define PCI_CHIP_AST2100 0x2010
57#define PCI_CHIP_AST1180 0x1180
58
59
60enum ast_chip {
61 AST2000,
62 AST2100,
63 AST1100,
64 AST2200,
65 AST2150,
66 AST2300,
67 AST2400,
68 AST2500,
69 AST1180,
70};
71
72enum ast_tx_chip {
73 AST_TX_NONE,
74 AST_TX_SIL164,
75 AST_TX_ITE66121,
76 AST_TX_DP501,
77};
78
79#define AST_DRAM_512Mx16 0
80#define AST_DRAM_1Gx16 1
81#define AST_DRAM_512Mx32 2
82#define AST_DRAM_1Gx32 3
83#define AST_DRAM_2Gx16 6
84#define AST_DRAM_4Gx16 7
85#define AST_DRAM_8Gx16 8
86
87struct ast_fbdev;
88
89struct ast_private {
90 struct drm_device *dev;
91
92 void __iomem *regs;
93 void __iomem *ioregs;
94
95 enum ast_chip chip;
96 bool vga2_clone;
97 uint32_t dram_bus_width;
98 uint32_t dram_type;
99 uint32_t mclk;
100 uint32_t vram_size;
101
102 struct ast_fbdev *fbdev;
103
104 int fb_mtrr;
105
106 struct {
107 struct drm_global_reference mem_global_ref;
108 struct ttm_bo_global_ref bo_global_ref;
109 struct ttm_bo_device bdev;
110 } ttm;
111
112 struct drm_gem_object *cursor_cache;
113 uint64_t cursor_cache_gpu_addr;
114 /* Acces to this cache is protected by the crtc->mutex of the only crtc
115 * we have. */
116 struct ttm_bo_kmap_obj cache_kmap;
117 int next_cursor;
118 bool support_wide_screen;
119 enum {
120 ast_use_p2a,
121 ast_use_dt,
122 ast_use_defaults
123 } config_mode;
124
125 enum ast_tx_chip tx_chip_type;
126 u8 dp501_maxclk;
127 u8 *dp501_fw_addr;
128 const struct firmware *dp501_fw; /* dp501 fw */
129};
130
131int ast_driver_load(struct drm_device *dev, unsigned long flags);
132void ast_driver_unload(struct drm_device *dev);
133
134struct ast_gem_object;
135
136#define AST_IO_AR_PORT_WRITE (0x40)
137#define AST_IO_MISC_PORT_WRITE (0x42)
138#define AST_IO_VGA_ENABLE_PORT (0x43)
139#define AST_IO_SEQ_PORT (0x44)
140#define AST_IO_DAC_INDEX_READ (0x47)
141#define AST_IO_DAC_INDEX_WRITE (0x48)
142#define AST_IO_DAC_DATA (0x49)
143#define AST_IO_GR_PORT (0x4E)
144#define AST_IO_CRTC_PORT (0x54)
145#define AST_IO_INPUT_STATUS1_READ (0x5A)
146#define AST_IO_MISC_PORT_READ (0x4C)
147
148#define AST_IO_MM_OFFSET (0x380)
149
150#define __ast_read(x) \
151static inline u##x ast_read##x(struct ast_private *ast, u32 reg) { \
152u##x val = 0;\
153val = ioread##x(ast->regs + reg); \
154return val;\
155}
156
157__ast_read(8);
158__ast_read(16);
159__ast_read(32)
160
161#define __ast_io_read(x) \
162static inline u##x ast_io_read##x(struct ast_private *ast, u32 reg) { \
163u##x val = 0;\
164val = ioread##x(ast->ioregs + reg); \
165return val;\
166}
167
168__ast_io_read(8);
169__ast_io_read(16);
170__ast_io_read(32);
171
172#define __ast_write(x) \
173static inline void ast_write##x(struct ast_private *ast, u32 reg, u##x val) {\
174 iowrite##x(val, ast->regs + reg);\
175 }
176
177__ast_write(8);
178__ast_write(16);
179__ast_write(32);
180
181#define __ast_io_write(x) \
182static inline void ast_io_write##x(struct ast_private *ast, u32 reg, u##x val) {\
183 iowrite##x(val, ast->ioregs + reg);\
184 }
185
186__ast_io_write(8);
187__ast_io_write(16);
188#undef __ast_io_write
189
190static inline void ast_set_index_reg(struct ast_private *ast,
191 uint32_t base, uint8_t index,
192 uint8_t val)
193{
194 ast_io_write16(ast, base, ((u16)val << 8) | index);
195}
196
197void ast_set_index_reg_mask(struct ast_private *ast,
198 uint32_t base, uint8_t index,
199 uint8_t mask, uint8_t val);
200uint8_t ast_get_index_reg(struct ast_private *ast,
201 uint32_t base, uint8_t index);
202uint8_t ast_get_index_reg_mask(struct ast_private *ast,
203 uint32_t base, uint8_t index, uint8_t mask);
204
205static inline void ast_open_key(struct ast_private *ast)
206{
207 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x80, 0xA8);
208}
209
210#define AST_VIDMEM_SIZE_8M 0x00800000
211#define AST_VIDMEM_SIZE_16M 0x01000000
212#define AST_VIDMEM_SIZE_32M 0x02000000
213#define AST_VIDMEM_SIZE_64M 0x04000000
214#define AST_VIDMEM_SIZE_128M 0x08000000
215
216#define AST_VIDMEM_DEFAULT_SIZE AST_VIDMEM_SIZE_8M
217
218#define AST_MAX_HWC_WIDTH 64
219#define AST_MAX_HWC_HEIGHT 64
220
221#define AST_HWC_SIZE (AST_MAX_HWC_WIDTH*AST_MAX_HWC_HEIGHT*2)
222#define AST_HWC_SIGNATURE_SIZE 32
223
224#define AST_DEFAULT_HWC_NUM 2
225/* define for signature structure */
226#define AST_HWC_SIGNATURE_CHECKSUM 0x00
227#define AST_HWC_SIGNATURE_SizeX 0x04
228#define AST_HWC_SIGNATURE_SizeY 0x08
229#define AST_HWC_SIGNATURE_X 0x0C
230#define AST_HWC_SIGNATURE_Y 0x10
231#define AST_HWC_SIGNATURE_HOTSPOTX 0x14
232#define AST_HWC_SIGNATURE_HOTSPOTY 0x18
233
234
235struct ast_i2c_chan {
236 struct i2c_adapter adapter;
237 struct drm_device *dev;
238 struct i2c_algo_bit_data bit;
239};
240
241struct ast_connector {
242 struct drm_connector base;
243 struct ast_i2c_chan *i2c;
244};
245
246struct ast_crtc {
247 struct drm_crtc base;
248 struct drm_gem_object *cursor_bo;
249 uint64_t cursor_addr;
250 int cursor_width, cursor_height;
251 u8 offset_x, offset_y;
252};
253
254struct ast_encoder {
255 struct drm_encoder base;
256};
257
258struct ast_framebuffer {
259 struct drm_framebuffer base;
260 struct drm_gem_object *obj;
261};
262
263struct ast_fbdev {
264 struct drm_fb_helper helper;
265 struct ast_framebuffer afb;
266 void *sysram;
267 int size;
268 struct ttm_bo_kmap_obj mapping;
269 int x1, y1, x2, y2; /* dirty rect */
270 spinlock_t dirty_lock;
271};
272
273#define to_ast_crtc(x) container_of(x, struct ast_crtc, base)
274#define to_ast_connector(x) container_of(x, struct ast_connector, base)
275#define to_ast_encoder(x) container_of(x, struct ast_encoder, base)
276#define to_ast_framebuffer(x) container_of(x, struct ast_framebuffer, base)
277
278struct ast_vbios_stdtable {
279 u8 misc;
280 u8 seq[4];
281 u8 crtc[25];
282 u8 ar[20];
283 u8 gr[9];
284};
285
286struct ast_vbios_enhtable {
287 u32 ht;
288 u32 hde;
289 u32 hfp;
290 u32 hsync;
291 u32 vt;
292 u32 vde;
293 u32 vfp;
294 u32 vsync;
295 u32 dclk_index;
296 u32 flags;
297 u32 refresh_rate;
298 u32 refresh_rate_index;
299 u32 mode_id;
300};
301
302struct ast_vbios_dclk_info {
303 u8 param1;
304 u8 param2;
305 u8 param3;
306};
307
308struct ast_vbios_mode_info {
309 const struct ast_vbios_stdtable *std_table;
310 const struct ast_vbios_enhtable *enh_table;
311};
312
313extern int ast_mode_init(struct drm_device *dev);
314extern void ast_mode_fini(struct drm_device *dev);
315
316int ast_framebuffer_init(struct drm_device *dev,
317 struct ast_framebuffer *ast_fb,
318 const struct drm_mode_fb_cmd2 *mode_cmd,
319 struct drm_gem_object *obj);
320
321int ast_fbdev_init(struct drm_device *dev);
322void ast_fbdev_fini(struct drm_device *dev);
323void ast_fbdev_set_suspend(struct drm_device *dev, int state);
324void ast_fbdev_set_base(struct ast_private *ast, unsigned long gpu_addr);
325
326struct ast_bo {
327 struct ttm_buffer_object bo;
328 struct ttm_placement placement;
329 struct ttm_bo_kmap_obj kmap;
330 struct drm_gem_object gem;
331 struct ttm_place placements[3];
332 int pin_count;
333};
334#define gem_to_ast_bo(gobj) container_of((gobj), struct ast_bo, gem)
335
336static inline struct ast_bo *
337ast_bo(struct ttm_buffer_object *bo)
338{
339 return container_of(bo, struct ast_bo, bo);
340}
341
342
343#define to_ast_obj(x) container_of(x, struct ast_gem_object, base)
344
345#define AST_MM_ALIGN_SHIFT 4
346#define AST_MM_ALIGN_MASK ((1 << AST_MM_ALIGN_SHIFT) - 1)
347
348extern int ast_dumb_create(struct drm_file *file,
349 struct drm_device *dev,
350 struct drm_mode_create_dumb *args);
351
352extern void ast_gem_free_object(struct drm_gem_object *obj);
353extern int ast_dumb_mmap_offset(struct drm_file *file,
354 struct drm_device *dev,
355 uint32_t handle,
356 uint64_t *offset);
357
358#define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT)
359
360int ast_mm_init(struct ast_private *ast);
361void ast_mm_fini(struct ast_private *ast);
362
363int ast_bo_create(struct drm_device *dev, int size, int align,
364 uint32_t flags, struct ast_bo **pastbo);
365
366int ast_gem_create(struct drm_device *dev,
367 u32 size, bool iskernel,
368 struct drm_gem_object **obj);
369
370int ast_bo_pin(struct ast_bo *bo, u32 pl_flag, u64 *gpu_addr);
371int ast_bo_unpin(struct ast_bo *bo);
372
373static inline int ast_bo_reserve(struct ast_bo *bo, bool no_wait)
374{
375 int ret;
376
377 ret = ttm_bo_reserve(&bo->bo, true, no_wait, NULL);
378 if (ret) {
379 if (ret != -ERESTARTSYS && ret != -EBUSY)
380 DRM_ERROR("reserve failed %p\n", bo);
381 return ret;
382 }
383 return 0;
384}
385
386static inline void ast_bo_unreserve(struct ast_bo *bo)
387{
388 ttm_bo_unreserve(&bo->bo);
389}
390
391void ast_ttm_placement(struct ast_bo *bo, int domain);
392int ast_bo_push_sysram(struct ast_bo *bo);
393int ast_mmap(struct file *filp, struct vm_area_struct *vma);
394
395/* ast post */
396void ast_enable_vga(struct drm_device *dev);
397void ast_enable_mmio(struct drm_device *dev);
398bool ast_is_vga_enabled(struct drm_device *dev);
399void ast_post_gpu(struct drm_device *dev);
400u32 ast_mindwm(struct ast_private *ast, u32 r);
401void ast_moutdwm(struct ast_private *ast, u32 r, u32 v);
402/* ast dp501 */
403void ast_set_dp501_video_output(struct drm_device *dev, u8 mode);
404bool ast_backup_fw(struct drm_device *dev, u8 *addr, u32 size);
405bool ast_dp501_read_edid(struct drm_device *dev, u8 *ediddata);
406u8 ast_get_dp501_max_clk(struct drm_device *dev);
407void ast_init_3rdtx(struct drm_device *dev);
408void ast_release_firmware(struct drm_device *dev);
409#endif