drm/ast: Try to use MMIO registers when PIO isn't supported
[deliverable/linux.git] / drivers / gpu / drm / ast / 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 <airlied@redhat.com>
27 */
28#ifndef __AST_DRV_H__
29#define __AST_DRV_H__
30
760285e7 31#include <drm/drm_fb_helper.h>
312fec14 32
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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>
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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
57enum ast_chip {
58 AST2000,
59 AST2100,
60 AST1100,
61 AST2200,
62 AST2150,
63 AST2300,
1453bf4c 64 AST2400,
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65 AST1180,
66};
67
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68enum ast_tx_chip {
69 AST_TX_NONE,
70 AST_TX_SIL164,
71 AST_TX_ITE66121,
72 AST_TX_DP501,
73};
74
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75#define AST_DRAM_512Mx16 0
76#define AST_DRAM_1Gx16 1
77#define AST_DRAM_512Mx32 2
78#define AST_DRAM_1Gx32 3
79#define AST_DRAM_2Gx16 6
80#define AST_DRAM_4Gx16 7
81
82struct ast_fbdev;
83
84struct ast_private {
85 struct drm_device *dev;
86
87 void __iomem *regs;
88 void __iomem *ioregs;
89
90 enum ast_chip chip;
91 bool vga2_clone;
92 uint32_t dram_bus_width;
93 uint32_t dram_type;
94 uint32_t mclk;
95 uint32_t vram_size;
96
97 struct ast_fbdev *fbdev;
98
99 int fb_mtrr;
100
101 struct {
102 struct drm_global_reference mem_global_ref;
103 struct ttm_bo_global_ref bo_global_ref;
104 struct ttm_bo_device bdev;
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105 } ttm;
106
107 struct drm_gem_object *cursor_cache;
108 uint64_t cursor_cache_gpu_addr;
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109 /* Acces to this cache is protected by the crtc->mutex of the only crtc
110 * we have. */
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111 struct ttm_bo_kmap_obj cache_kmap;
112 int next_cursor;
f1f62f2c 113 bool support_wide_screen;
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114
115 enum ast_tx_chip tx_chip_type;
116 u8 dp501_maxclk;
117 u8 *dp501_fw_addr;
118 const struct firmware *dp501_fw; /* dp501 fw */
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119};
120
121int ast_driver_load(struct drm_device *dev, unsigned long flags);
122int ast_driver_unload(struct drm_device *dev);
123
124struct ast_gem_object;
125
126#define AST_IO_AR_PORT_WRITE (0x40)
127#define AST_IO_MISC_PORT_WRITE (0x42)
0dd68309 128#define AST_IO_VGA_ENABLE_PORT (0x43)
312fec14 129#define AST_IO_SEQ_PORT (0x44)
0dd68309 130#define AST_IO_DAC_INDEX_READ (0x47)
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131#define AST_IO_DAC_INDEX_WRITE (0x48)
132#define AST_IO_DAC_DATA (0x49)
133#define AST_IO_GR_PORT (0x4E)
134#define AST_IO_CRTC_PORT (0x54)
135#define AST_IO_INPUT_STATUS1_READ (0x5A)
136#define AST_IO_MISC_PORT_READ (0x4C)
137
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138#define AST_IO_MM_OFFSET (0x380)
139
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140#define __ast_read(x) \
141static inline u##x ast_read##x(struct ast_private *ast, u32 reg) { \
142u##x val = 0;\
143val = ioread##x(ast->regs + reg); \
144return val;\
145}
146
147__ast_read(8);
148__ast_read(16);
149__ast_read(32)
150
151#define __ast_io_read(x) \
152static inline u##x ast_io_read##x(struct ast_private *ast, u32 reg) { \
153u##x val = 0;\
154val = ioread##x(ast->ioregs + reg); \
155return val;\
156}
157
158__ast_io_read(8);
159__ast_io_read(16);
160__ast_io_read(32);
161
162#define __ast_write(x) \
163static inline void ast_write##x(struct ast_private *ast, u32 reg, u##x val) {\
164 iowrite##x(val, ast->regs + reg);\
165 }
166
167__ast_write(8);
168__ast_write(16);
169__ast_write(32);
170
171#define __ast_io_write(x) \
172static inline void ast_io_write##x(struct ast_private *ast, u32 reg, u##x val) {\
173 iowrite##x(val, ast->ioregs + reg);\
174 }
175
176__ast_io_write(8);
177__ast_io_write(16);
178#undef __ast_io_write
179
180static inline void ast_set_index_reg(struct ast_private *ast,
181 uint32_t base, uint8_t index,
182 uint8_t val)
183{
184 ast_io_write16(ast, base, ((u16)val << 8) | index);
185}
186
187void ast_set_index_reg_mask(struct ast_private *ast,
188 uint32_t base, uint8_t index,
189 uint8_t mask, uint8_t val);
190uint8_t ast_get_index_reg(struct ast_private *ast,
191 uint32_t base, uint8_t index);
192uint8_t ast_get_index_reg_mask(struct ast_private *ast,
193 uint32_t base, uint8_t index, uint8_t mask);
194
195static inline void ast_open_key(struct ast_private *ast)
196{
2e837813 197 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x80, 0xA8);
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198}
199
200#define AST_VIDMEM_SIZE_8M 0x00800000
201#define AST_VIDMEM_SIZE_16M 0x01000000
202#define AST_VIDMEM_SIZE_32M 0x02000000
203#define AST_VIDMEM_SIZE_64M 0x04000000
204#define AST_VIDMEM_SIZE_128M 0x08000000
205
206#define AST_VIDMEM_DEFAULT_SIZE AST_VIDMEM_SIZE_8M
207
208#define AST_MAX_HWC_WIDTH 64
209#define AST_MAX_HWC_HEIGHT 64
210
211#define AST_HWC_SIZE (AST_MAX_HWC_WIDTH*AST_MAX_HWC_HEIGHT*2)
212#define AST_HWC_SIGNATURE_SIZE 32
213
214#define AST_DEFAULT_HWC_NUM 2
215/* define for signature structure */
216#define AST_HWC_SIGNATURE_CHECKSUM 0x00
217#define AST_HWC_SIGNATURE_SizeX 0x04
218#define AST_HWC_SIGNATURE_SizeY 0x08
219#define AST_HWC_SIGNATURE_X 0x0C
220#define AST_HWC_SIGNATURE_Y 0x10
221#define AST_HWC_SIGNATURE_HOTSPOTX 0x14
222#define AST_HWC_SIGNATURE_HOTSPOTY 0x18
223
224
225struct ast_i2c_chan {
226 struct i2c_adapter adapter;
227 struct drm_device *dev;
228 struct i2c_algo_bit_data bit;
229};
230
231struct ast_connector {
232 struct drm_connector base;
233 struct ast_i2c_chan *i2c;
234};
235
236struct ast_crtc {
237 struct drm_crtc base;
238 u8 lut_r[256], lut_g[256], lut_b[256];
239 struct drm_gem_object *cursor_bo;
240 uint64_t cursor_addr;
241 int cursor_width, cursor_height;
242 u8 offset_x, offset_y;
243};
244
245struct ast_encoder {
246 struct drm_encoder base;
247};
248
249struct ast_framebuffer {
250 struct drm_framebuffer base;
251 struct drm_gem_object *obj;
252};
253
254struct ast_fbdev {
255 struct drm_fb_helper helper;
256 struct ast_framebuffer afb;
257 struct list_head fbdev_list;
258 void *sysram;
259 int size;
260 struct ttm_bo_kmap_obj mapping;
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261 int x1, y1, x2, y2; /* dirty rect */
262 spinlock_t dirty_lock;
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263};
264
265#define to_ast_crtc(x) container_of(x, struct ast_crtc, base)
266#define to_ast_connector(x) container_of(x, struct ast_connector, base)
267#define to_ast_encoder(x) container_of(x, struct ast_encoder, base)
268#define to_ast_framebuffer(x) container_of(x, struct ast_framebuffer, base)
269
270struct ast_vbios_stdtable {
271 u8 misc;
272 u8 seq[4];
273 u8 crtc[25];
274 u8 ar[20];
275 u8 gr[9];
276};
277
278struct ast_vbios_enhtable {
279 u32 ht;
280 u32 hde;
281 u32 hfp;
282 u32 hsync;
283 u32 vt;
284 u32 vde;
285 u32 vfp;
286 u32 vsync;
287 u32 dclk_index;
288 u32 flags;
289 u32 refresh_rate;
290 u32 refresh_rate_index;
291 u32 mode_id;
292};
293
294struct ast_vbios_dclk_info {
295 u8 param1;
296 u8 param2;
297 u8 param3;
298};
299
300struct ast_vbios_mode_info {
301 struct ast_vbios_stdtable *std_table;
302 struct ast_vbios_enhtable *enh_table;
303};
304
305extern int ast_mode_init(struct drm_device *dev);
306extern void ast_mode_fini(struct drm_device *dev);
307
308int ast_framebuffer_init(struct drm_device *dev,
309 struct ast_framebuffer *ast_fb,
310 struct drm_mode_fb_cmd2 *mode_cmd,
311 struct drm_gem_object *obj);
312
313int ast_fbdev_init(struct drm_device *dev);
314void ast_fbdev_fini(struct drm_device *dev);
315void ast_fbdev_set_suspend(struct drm_device *dev, int state);
316
317struct ast_bo {
318 struct ttm_buffer_object bo;
319 struct ttm_placement placement;
320 struct ttm_bo_kmap_obj kmap;
321 struct drm_gem_object gem;
f1217ed0 322 struct ttm_place placements[3];
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323 int pin_count;
324};
325#define gem_to_ast_bo(gobj) container_of((gobj), struct ast_bo, gem)
326
327static inline struct ast_bo *
328ast_bo(struct ttm_buffer_object *bo)
329{
330 return container_of(bo, struct ast_bo, bo);
331}
332
333
334#define to_ast_obj(x) container_of(x, struct ast_gem_object, base)
335
336#define AST_MM_ALIGN_SHIFT 4
337#define AST_MM_ALIGN_MASK ((1 << AST_MM_ALIGN_SHIFT) - 1)
338
339extern int ast_dumb_create(struct drm_file *file,
340 struct drm_device *dev,
341 struct drm_mode_create_dumb *args);
312fec14 342
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343extern void ast_gem_free_object(struct drm_gem_object *obj);
344extern int ast_dumb_mmap_offset(struct drm_file *file,
345 struct drm_device *dev,
346 uint32_t handle,
347 uint64_t *offset);
348
349#define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT)
350
351int ast_mm_init(struct ast_private *ast);
352void ast_mm_fini(struct ast_private *ast);
353
354int ast_bo_create(struct drm_device *dev, int size, int align,
355 uint32_t flags, struct ast_bo **pastbo);
356
357int ast_gem_create(struct drm_device *dev,
358 u32 size, bool iskernel,
359 struct drm_gem_object **obj);
360
361int ast_bo_pin(struct ast_bo *bo, u32 pl_flag, u64 *gpu_addr);
362int ast_bo_unpin(struct ast_bo *bo);
363
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364static inline int ast_bo_reserve(struct ast_bo *bo, bool no_wait)
365{
366 int ret;
367
ee3939e0 368 ret = ttm_bo_reserve(&bo->bo, true, no_wait, false, NULL);
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369 if (ret) {
370 if (ret != -ERESTARTSYS && ret != -EBUSY)
371 DRM_ERROR("reserve failed %p\n", bo);
372 return ret;
373 }
374 return 0;
375}
376
377static inline void ast_bo_unreserve(struct ast_bo *bo)
378{
379 ttm_bo_unreserve(&bo->bo);
380}
381
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382void ast_ttm_placement(struct ast_bo *bo, int domain);
383int ast_bo_push_sysram(struct ast_bo *bo);
384int ast_mmap(struct file *filp, struct vm_area_struct *vma);
385
386/* ast post */
387void ast_post_gpu(struct drm_device *dev);
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388u32 ast_mindwm(struct ast_private *ast, u32 r);
389void ast_moutdwm(struct ast_private *ast, u32 r, u32 v);
390/* ast dp501 */
391int ast_load_dp501_microcode(struct drm_device *dev);
392void ast_set_dp501_video_output(struct drm_device *dev, u8 mode);
393bool ast_launch_m68k(struct drm_device *dev);
394bool ast_backup_fw(struct drm_device *dev, u8 *addr, u32 size);
395bool ast_dp501_read_edid(struct drm_device *dev, u8 *ediddata);
396u8 ast_get_dp501_max_clk(struct drm_device *dev);
397void ast_init_3rdtx(struct drm_device *dev);
312fec14 398#endif
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