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         AST1180,
  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;
  84         uint32_t dram_bus_width;
  85         uint32_t dram_type;
  86         uint32_t mclk;
  87         uint32_t vram_size;
  88
  89         struct ast_fbdev *fbdev;
  90
  91         int fb_mtrr;
  92
  93         struct {
  94                 struct drm_global_reference mem_global_ref;
  95                 struct ttm_bo_global_ref bo_global_ref;
  96                 struct ttm_bo_device bdev;
  97         } ttm;
  98
  99         struct drm_gem_object *cursor_cache;
 100         uint64_t cursor_cache_gpu_addr;
 101         /* Acces to this cache is protected by the crtc->mutex of the only crtc
 102          * we have. */
 103         struct ttm_bo_kmap_obj cache_kmap;
 104         int next_cursor;
 105 };
 106
 107 int ast_driver_load(struct drm_device *dev, unsigned long flags);
 108 int ast_driver_unload(struct drm_device *dev);
 109
 110 struct ast_gem_object;
 111
 112 #define AST_IO_AR_PORT_WRITE            (0x40)
 113 #define AST_IO_MISC_PORT_WRITE          (0x42)
 114 #define AST_IO_SEQ_PORT                 (0x44)
 115 #define AST_DAC_INDEX_READ              (0x3c7)
 116 #define AST_IO_DAC_INDEX_WRITE          (0x48)
 117 #define AST_IO_DAC_DATA                 (0x49)
 118 #define AST_IO_GR_PORT                  (0x4E)
 119 #define AST_IO_CRTC_PORT                (0x54)
 120 #define AST_IO_INPUT_STATUS1_READ       (0x5A)
 121 #define AST_IO_MISC_PORT_READ           (0x4C)
 122
 123 #define __ast_read(x) \
 124 static inline u##x ast_read##x(struct ast_private *ast, u32 reg) { \
 125 u##x val = 0;\
 126 val = ioread##x(ast->regs + reg); \
 127 return val;\
 128 }
 129
 130 __ast_read(8);
 131 __ast_read(16);
 132 __ast_read(32)
 133
 134 #define __ast_io_read(x) \
 135 static inline u##x ast_io_read##x(struct ast_private *ast, u32 reg) { \
 136 u##x val = 0;\
 137 val = ioread##x(ast->ioregs + reg); \
 138 return val;\
 139 }
 140
 141 __ast_io_read(8);
 142 __ast_io_read(16);
 143 __ast_io_read(32);
 144
 145 #define __ast_write(x) \
 146 static inline void ast_write##x(struct ast_private *ast, u32 reg, u##x val) {\
 147         iowrite##x(val, ast->regs + reg);\
 148         }
 149
 150 __ast_write(8);
 151 __ast_write(16);
 152 __ast_write(32);
 153
 154 #define __ast_io_write(x) \
 155 static inline void ast_io_write##x(struct ast_private *ast, u32 reg, u##x val) {\
 156         iowrite##x(val, ast->ioregs + reg);\
 157         }
 158
 159 __ast_io_write(8);
 160 __ast_io_write(16);
 161 #undef __ast_io_write
 162
 163 static inline void ast_set_index_reg(struct ast_private *ast,
 164                                      uint32_t base, uint8_t index,
 165                                      uint8_t val)
 166 {
 167         ast_io_write16(ast, base, ((u16)val << 8) | index);
 168 }
 169
 170 void ast_set_index_reg_mask(struct ast_private *ast,
 171                             uint32_t base, uint8_t index,
 172                             uint8_t mask, uint8_t val);
 173 uint8_t ast_get_index_reg(struct ast_private *ast,
 174                           uint32_t base, uint8_t index);
 175 uint8_t ast_get_index_reg_mask(struct ast_private *ast,
 176                                uint32_t base, uint8_t index, uint8_t mask);
 177
 178 static inline void ast_open_key(struct ast_private *ast)
 179 {
 180         ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x80, 0xA8);
 181 }
 182
 183 #define AST_VIDMEM_SIZE_8M    0x00800000
 184 #define AST_VIDMEM_SIZE_16M   0x01000000
 185 #define AST_VIDMEM_SIZE_32M   0x02000000
 186 #define AST_VIDMEM_SIZE_64M   0x04000000
 187 #define AST_VIDMEM_SIZE_128M  0x08000000
 188
 189 #define AST_VIDMEM_DEFAULT_SIZE AST_VIDMEM_SIZE_8M
 190
 191 #define AST_MAX_HWC_WIDTH 64
 192 #define AST_MAX_HWC_HEIGHT 64
 193
 194 #define AST_HWC_SIZE                (AST_MAX_HWC_WIDTH*AST_MAX_HWC_HEIGHT*2)
 195 #define AST_HWC_SIGNATURE_SIZE      32
 196
 197 #define AST_DEFAULT_HWC_NUM 2
 198 /* define for signature structure */
 199 #define AST_HWC_SIGNATURE_CHECKSUM  0x00
 200 #define AST_HWC_SIGNATURE_SizeX     0x04
 201 #define AST_HWC_SIGNATURE_SizeY     0x08
 202 #define AST_HWC_SIGNATURE_X         0x0C
 203 #define AST_HWC_SIGNATURE_Y         0x10
 204 #define AST_HWC_SIGNATURE_HOTSPOTX  0x14
 205 #define AST_HWC_SIGNATURE_HOTSPOTY  0x18
 206
 207
 208 struct ast_i2c_chan {
 209         struct i2c_adapter adapter;
 210         struct drm_device *dev;
 211         struct i2c_algo_bit_data bit;
 212 };
 213
 214 struct ast_connector {
 215         struct drm_connector base;
 216         struct ast_i2c_chan *i2c;
 217 };
 218
 219 struct ast_crtc {
 220         struct drm_crtc base;
 221         u8 lut_r[256], lut_g[256], lut_b[256];
 222         struct drm_gem_object *cursor_bo;
 223         uint64_t cursor_addr;
 224         int cursor_width, cursor_height;
 225         u8 offset_x, offset_y;
 226 };
 227
 228 struct ast_encoder {
 229         struct drm_encoder base;
 230 };
 231
 232 struct ast_framebuffer {
 233         struct drm_framebuffer base;
 234         struct drm_gem_object *obj;
 235 };
 236
 237 struct ast_fbdev {
 238         struct drm_fb_helper helper;
 239         struct ast_framebuffer afb;
 240         struct list_head fbdev_list;
 241         void *sysram;
 242         int size;
 243         struct ttm_bo_kmap_obj mapping;
 244         int x1, y1, x2, y2; /* dirty rect */
 245         spinlock_t dirty_lock;
 246 };
 247
 248 #define to_ast_crtc(x) container_of(x, struct ast_crtc, base)
 249 #define to_ast_connector(x) container_of(x, struct ast_connector, base)
 250 #define to_ast_encoder(x) container_of(x, struct ast_encoder, base)
 251 #define to_ast_framebuffer(x) container_of(x, struct ast_framebuffer, base)
 252
 253 struct ast_vbios_stdtable {
 254         u8 misc;
 255         u8 seq[4];
 256         u8 crtc[25];
 257         u8 ar[20];
 258         u8 gr[9];
 259 };
 260
 261 struct ast_vbios_enhtable {
 262         u32 ht;
 263         u32 hde;
 264         u32 hfp;
 265         u32 hsync;
 266         u32 vt;
 267         u32 vde;
 268         u32 vfp;
 269         u32 vsync;
 270         u32 dclk_index;
 271         u32 flags;
 272         u32 refresh_rate;
 273         u32 refresh_rate_index;
 274         u32 mode_id;
 275 };
 276
 277 struct ast_vbios_dclk_info {
 278         u8 param1;
 279         u8 param2;
 280         u8 param3;
 281 };
 282
 283 struct ast_vbios_mode_info {
 284         struct ast_vbios_stdtable *std_table;
 285         struct ast_vbios_enhtable *enh_table;
 286 };
 287
 288 extern int ast_mode_init(struct drm_device *dev);
 289 extern void ast_mode_fini(struct drm_device *dev);
 290
 291 int ast_framebuffer_init(struct drm_device *dev,
 292                          struct ast_framebuffer *ast_fb,
 293                          struct drm_mode_fb_cmd2 *mode_cmd,
 294                          struct drm_gem_object *obj);
 295
 296 int ast_fbdev_init(struct drm_device *dev);
 297 void ast_fbdev_fini(struct drm_device *dev);
 298 void ast_fbdev_set_suspend(struct drm_device *dev, int state);
 299
 300 struct ast_bo {
 301         struct ttm_buffer_object bo;
 302         struct ttm_placement placement;
 303         struct ttm_bo_kmap_obj kmap;
 304         struct drm_gem_object gem;
 305         u32 placements[3];
 306         int pin_count;
 307 };
 308 #define gem_to_ast_bo(gobj) container_of((gobj), struct ast_bo, gem)
 309
 310 static inline struct ast_bo *
 311 ast_bo(struct ttm_buffer_object *bo)
 312 {
 313         return container_of(bo, struct ast_bo, bo);
 314 }
 315
 316
 317 #define to_ast_obj(x) container_of(x, struct ast_gem_object, base)
 318
 319 #define AST_MM_ALIGN_SHIFT 4
 320 #define AST_MM_ALIGN_MASK ((1 << AST_MM_ALIGN_SHIFT) - 1)
 321
 322 extern int ast_dumb_create(struct drm_file *file,
 323                            struct drm_device *dev,
 324                            struct drm_mode_create_dumb *args);
 325
 326 extern int ast_gem_init_object(struct drm_gem_object *obj);
 327 extern void ast_gem_free_object(struct drm_gem_object *obj);
 328 extern int ast_dumb_mmap_offset(struct drm_file *file,
 329                                 struct drm_device *dev,
 330                                 uint32_t handle,
 331                                 uint64_t *offset);
 332
 333 #define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT)
 334
 335 int ast_mm_init(struct ast_private *ast);
 336 void ast_mm_fini(struct ast_private *ast);
 337
 338 int ast_bo_create(struct drm_device *dev, int size, int align,
 339                   uint32_t flags, struct ast_bo **pastbo);
 340
 341 int ast_gem_create(struct drm_device *dev,
 342                    u32 size, bool iskernel,
 343                    struct drm_gem_object **obj);
 344
 345 int ast_bo_pin(struct ast_bo *bo, u32 pl_flag, u64 *gpu_addr);
 346 int ast_bo_unpin(struct ast_bo *bo);
 347
 348 static inline int ast_bo_reserve(struct ast_bo *bo, bool no_wait)
 349 {
 350         int ret;
 351
 352         ret = ttm_bo_reserve(&bo->bo, true, no_wait, false, 0);
 353         if (ret) {
 354                 if (ret != -ERESTARTSYS && ret != -EBUSY)
 355                         DRM_ERROR("reserve failed %p\n", bo);
 356                 return ret;
 357         }
 358         return 0;
 359 }
 360
 361 static inline void ast_bo_unreserve(struct ast_bo *bo)
 362 {
 363         ttm_bo_unreserve(&bo->bo);
 364 }
 365
 366 void ast_ttm_placement(struct ast_bo *bo, int domain);
 367 int ast_bo_push_sysram(struct ast_bo *bo);
 368 int ast_mmap(struct file *filp, struct vm_area_struct *vma);
 369
 370 /* ast post */
 371 void ast_post_gpu(struct drm_device *dev);
 372 #endif