drivers/gpu/drm/ast/ast_drv.h

   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_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 {
  58         AST2000,
  59         AST2100,
  60         AST1100,
  61         AST2200,
  62         AST2150,
  63         AST2300,
  64         AST2400,
  65         AST1180,
  66 };
  67
  68 enum ast_tx_chip {
  69         AST_TX_NONE,
  70         AST_TX_SIL164,
  71         AST_TX_ITE66121,
  72         AST_TX_DP501,
  73 };
  74
  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
  82 struct ast_fbdev;
  83
  84 struct 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;
 105         } ttm;
 106
 107         struct drm_gem_object *cursor_cache;
 108         uint64_t cursor_cache_gpu_addr;
 109         /* Acces to this cache is protected by the crtc->mutex of the only crtc
 110          * we have. */
 111         struct ttm_bo_kmap_obj cache_kmap;
 112         int next_cursor;
 113         bool support_wide_screen;
 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 */
 119 };
 120
 121 int ast_driver_load(struct drm_device *dev, unsigned long flags);
 122 int ast_driver_unload(struct drm_device *dev);
 123
 124 struct ast_gem_object;
 125
 126 #define AST_IO_AR_PORT_WRITE            (0x40)
 127 #define AST_IO_MISC_PORT_WRITE          (0x42)
 128 #define AST_IO_SEQ_PORT                 (0x44)
 129 #define AST_DAC_INDEX_READ              (0x3c7)
 130 #define AST_IO_DAC_INDEX_WRITE          (0x48)
 131 #define AST_IO_DAC_DATA                 (0x49)
 132 #define AST_IO_GR_PORT                  (0x4E)
 133 #define AST_IO_CRTC_PORT                (0x54)
 134 #define AST_IO_INPUT_STATUS1_READ       (0x5A)
 135 #define AST_IO_MISC_PORT_READ           (0x4C)
 136
 137 #define __ast_read(x) \
 138 static inline u##x ast_read##x(struct ast_private *ast, u32 reg) { \
 139 u##x val = 0;\
 140 val = ioread##x(ast->regs + reg); \
 141 return val;\
 142 }
 143
 144 __ast_read(8);
 145 __ast_read(16);
 146 __ast_read(32)
 147
 148 #define __ast_io_read(x) \
 149 static inline u##x ast_io_read##x(struct ast_private *ast, u32 reg) { \
 150 u##x val = 0;\
 151 val = ioread##x(ast->ioregs + reg); \
 152 return val;\
 153 }
 154
 155 __ast_io_read(8);
 156 __ast_io_read(16);
 157 __ast_io_read(32);
 158
 159 #define __ast_write(x) \
 160 static inline void ast_write##x(struct ast_private *ast, u32 reg, u##x val) {\
 161         iowrite##x(val, ast->regs + reg);\
 162         }
 163
 164 __ast_write(8);
 165 __ast_write(16);
 166 __ast_write(32);
 167
 168 #define __ast_io_write(x) \
 169 static inline void ast_io_write##x(struct ast_private *ast, u32 reg, u##x val) {\
 170         iowrite##x(val, ast->ioregs + reg);\
 171         }
 172
 173 __ast_io_write(8);
 174 __ast_io_write(16);
 175 #undef __ast_io_write
 176
 177 static inline void ast_set_index_reg(struct ast_private *ast,
 178                                      uint32_t base, uint8_t index,
 179                                      uint8_t val)
 180 {
 181         ast_io_write16(ast, base, ((u16)val << 8) | index);
 182 }
 183
 184 void ast_set_index_reg_mask(struct ast_private *ast,
 185                             uint32_t base, uint8_t index,
 186                             uint8_t mask, uint8_t val);
 187 uint8_t ast_get_index_reg(struct ast_private *ast,
 188                           uint32_t base, uint8_t index);
 189 uint8_t ast_get_index_reg_mask(struct ast_private *ast,
 190                                uint32_t base, uint8_t index, uint8_t mask);
 191
 192 static inline void ast_open_key(struct ast_private *ast)
 193 {
 194         ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x80, 0xA8);
 195 }
 196
 197 #define AST_VIDMEM_SIZE_8M    0x00800000
 198 #define AST_VIDMEM_SIZE_16M   0x01000000
 199 #define AST_VIDMEM_SIZE_32M   0x02000000
 200 #define AST_VIDMEM_SIZE_64M   0x04000000
 201 #define AST_VIDMEM_SIZE_128M  0x08000000
 202
 203 #define AST_VIDMEM_DEFAULT_SIZE AST_VIDMEM_SIZE_8M
 204
 205 #define AST_MAX_HWC_WIDTH 64
 206 #define AST_MAX_HWC_HEIGHT 64
 207
 208 #define AST_HWC_SIZE                (AST_MAX_HWC_WIDTH*AST_MAX_HWC_HEIGHT*2)
 209 #define AST_HWC_SIGNATURE_SIZE      32
 210
 211 #define AST_DEFAULT_HWC_NUM 2
 212 /* define for signature structure */
 213 #define AST_HWC_SIGNATURE_CHECKSUM  0x00
 214 #define AST_HWC_SIGNATURE_SizeX     0x04
 215 #define AST_HWC_SIGNATURE_SizeY     0x08
 216 #define AST_HWC_SIGNATURE_X         0x0C
 217 #define AST_HWC_SIGNATURE_Y         0x10
 218 #define AST_HWC_SIGNATURE_HOTSPOTX  0x14
 219 #define AST_HWC_SIGNATURE_HOTSPOTY  0x18
 220
 221
 222 struct ast_i2c_chan {
 223         struct i2c_adapter adapter;
 224         struct drm_device *dev;
 225         struct i2c_algo_bit_data bit;
 226 };
 227
 228 struct ast_connector {
 229         struct drm_connector base;
 230         struct ast_i2c_chan *i2c;
 231 };
 232
 233 struct ast_crtc {
 234         struct drm_crtc base;
 235         u8 lut_r[256], lut_g[256], lut_b[256];
 236         struct drm_gem_object *cursor_bo;
 237         uint64_t cursor_addr;
 238         int cursor_width, cursor_height;
 239         u8 offset_x, offset_y;
 240 };
 241
 242 struct ast_encoder {
 243         struct drm_encoder base;
 244 };
 245
 246 struct ast_framebuffer {
 247         struct drm_framebuffer base;
 248         struct drm_gem_object *obj;
 249 };
 250
 251 struct ast_fbdev {
 252         struct drm_fb_helper helper;
 253         struct ast_framebuffer afb;
 254         struct list_head fbdev_list;
 255         void *sysram;
 256         int size;
 257         struct ttm_bo_kmap_obj mapping;
 258         int x1, y1, x2, y2; /* dirty rect */
 259         spinlock_t dirty_lock;
 260 };
 261
 262 #define to_ast_crtc(x) container_of(x, struct ast_crtc, base)
 263 #define to_ast_connector(x) container_of(x, struct ast_connector, base)
 264 #define to_ast_encoder(x) container_of(x, struct ast_encoder, base)
 265 #define to_ast_framebuffer(x) container_of(x, struct ast_framebuffer, base)
 266
 267 struct ast_vbios_stdtable {
 268         u8 misc;
 269         u8 seq[4];
 270         u8 crtc[25];
 271         u8 ar[20];
 272         u8 gr[9];
 273 };
 274
 275 struct ast_vbios_enhtable {
 276         u32 ht;
 277         u32 hde;
 278         u32 hfp;
 279         u32 hsync;
 280         u32 vt;
 281         u32 vde;
 282         u32 vfp;
 283         u32 vsync;
 284         u32 dclk_index;
 285         u32 flags;
 286         u32 refresh_rate;
 287         u32 refresh_rate_index;
 288         u32 mode_id;
 289 };
 290
 291 struct ast_vbios_dclk_info {
 292         u8 param1;
 293         u8 param2;
 294         u8 param3;
 295 };
 296
 297 struct ast_vbios_mode_info {
 298         struct ast_vbios_stdtable *std_table;
 299         struct ast_vbios_enhtable *enh_table;
 300 };
 301
 302 extern int ast_mode_init(struct drm_device *dev);
 303 extern void ast_mode_fini(struct drm_device *dev);
 304
 305 int ast_framebuffer_init(struct drm_device *dev,
 306                          struct ast_framebuffer *ast_fb,
 307                          struct drm_mode_fb_cmd2 *mode_cmd,
 308                          struct drm_gem_object *obj);
 309
 310 int ast_fbdev_init(struct drm_device *dev);
 311 void ast_fbdev_fini(struct drm_device *dev);
 312 void ast_fbdev_set_suspend(struct drm_device *dev, int state);
 313
 314 struct ast_bo {
 315         struct ttm_buffer_object bo;
 316         struct ttm_placement placement;
 317         struct ttm_bo_kmap_obj kmap;
 318         struct drm_gem_object gem;
 319         u32 placements[3];
 320         int pin_count;
 321 };
 322 #define gem_to_ast_bo(gobj) container_of((gobj), struct ast_bo, gem)
 323
 324 static inline struct ast_bo *
 325 ast_bo(struct ttm_buffer_object *bo)
 326 {
 327         return container_of(bo, struct ast_bo, bo);
 328 }
 329
 330
 331 #define to_ast_obj(x) container_of(x, struct ast_gem_object, base)
 332
 333 #define AST_MM_ALIGN_SHIFT 4
 334 #define AST_MM_ALIGN_MASK ((1 << AST_MM_ALIGN_SHIFT) - 1)
 335
 336 extern int ast_dumb_create(struct drm_file *file,
 337                            struct drm_device *dev,
 338                            struct drm_mode_create_dumb *args);
 339
 340 extern void ast_gem_free_object(struct drm_gem_object *obj);
 341 extern int ast_dumb_mmap_offset(struct drm_file *file,
 342                                 struct drm_device *dev,
 343                                 uint32_t handle,
 344                                 uint64_t *offset);
 345
 346 #define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT)
 347
 348 int ast_mm_init(struct ast_private *ast);
 349 void ast_mm_fini(struct ast_private *ast);
 350
 351 int ast_bo_create(struct drm_device *dev, int size, int align,
 352                   uint32_t flags, struct ast_bo **pastbo);
 353
 354 int ast_gem_create(struct drm_device *dev,
 355                    u32 size, bool iskernel,
 356                    struct drm_gem_object **obj);
 357
 358 int ast_bo_pin(struct ast_bo *bo, u32 pl_flag, u64 *gpu_addr);
 359 int ast_bo_unpin(struct ast_bo *bo);
 360
 361 static inline int ast_bo_reserve(struct ast_bo *bo, bool no_wait)
 362 {
 363         int ret;
 364
 365         ret = ttm_bo_reserve(&bo->bo, true, no_wait, false, NULL);
 366         if (ret) {
 367                 if (ret != -ERESTARTSYS && ret != -EBUSY)
 368                         DRM_ERROR("reserve failed %p\n", bo);
 369                 return ret;
 370         }
 371         return 0;
 372 }
 373
 374 static inline void ast_bo_unreserve(struct ast_bo *bo)
 375 {
 376         ttm_bo_unreserve(&bo->bo);
 377 }
 378
 379 void ast_ttm_placement(struct ast_bo *bo, int domain);
 380 int ast_bo_push_sysram(struct ast_bo *bo);
 381 int ast_mmap(struct file *filp, struct vm_area_struct *vma);
 382
 383 /* ast post */
 384 void ast_post_gpu(struct drm_device *dev);
 385 u32 ast_mindwm(struct ast_private *ast, u32 r);
 386 void ast_moutdwm(struct ast_private *ast, u32 r, u32 v);
 387 /* ast dp501 */
 388 int ast_load_dp501_microcode(struct drm_device *dev);
 389 void ast_set_dp501_video_output(struct drm_device *dev, u8 mode);
 390 bool ast_launch_m68k(struct drm_device *dev);
 391 bool ast_backup_fw(struct drm_device *dev, u8 *addr, u32 size);
 392 bool ast_dp501_read_edid(struct drm_device *dev, u8 *ediddata);
 393 u8 ast_get_dp501_max_clk(struct drm_device *dev);
 394 void ast_init_3rdtx(struct drm_device *dev);
 395 #endif