1 /* 2 * Copyright 2010 Matt Turner. 3 * Copyright 2012 Red Hat 4 * 5 * This file is subject to the terms and conditions of the GNU General 6 * Public License version 2. See the file COPYING in the main 7 * directory of this archive for more details. 8 * 9 * Authors: Matthew Garrett 10 * Matt Turner 11 * Dave Airlie 12 */ 13 #ifndef __MGAG200_DRV_H__ 14 #define __MGAG200_DRV_H__ 15 16 #include <video/vga.h> 17 18 #include <drm/drm_fb_helper.h> 19 #include <drm/ttm/ttm_bo_api.h> 20 #include <drm/ttm/ttm_bo_driver.h> 21 #include <drm/ttm/ttm_placement.h> 22 #include <drm/ttm/ttm_memory.h> 23 #include <drm/ttm/ttm_module.h> 24 25 #include <linux/i2c.h> 26 #include <linux/i2c-algo-bit.h> 27 28 #include "mgag200_reg.h" 29 30 #define DRIVER_AUTHOR "Matthew Garrett" 31 32 #define DRIVER_NAME "mgag200" 33 #define DRIVER_DESC "MGA G200 SE" 34 #define DRIVER_DATE "20110418" 35 36 #define DRIVER_MAJOR 1 37 #define DRIVER_MINOR 0 38 #define DRIVER_PATCHLEVEL 0 39 40 #define MGAG200FB_CONN_LIMIT 1 41 42 #define RREG8(reg) ioread8(((void __iomem *)mdev->rmmio) + (reg)) 43 #define WREG8(reg, v) iowrite8(v, ((void __iomem *)mdev->rmmio) + (reg)) 44 #define RREG32(reg) ioread32(((void __iomem *)mdev->rmmio) + (reg)) 45 #define WREG32(reg, v) iowrite32(v, ((void __iomem *)mdev->rmmio) + (reg)) 46 47 #define ATTR_INDEX 0x1fc0 48 #define ATTR_DATA 0x1fc1 49 50 #define WREG_ATTR(reg, v) \ 51 do { \ 52 RREG8(0x1fda); \ 53 WREG8(ATTR_INDEX, reg); \ 54 WREG8(ATTR_DATA, v); \ 55 } while (0) \ 56 57 #define WREG_SEQ(reg, v) \ 58 do { \ 59 WREG8(MGAREG_SEQ_INDEX, reg); \ 60 WREG8(MGAREG_SEQ_DATA, v); \ 61 } while (0) \ 62 63 #define WREG_CRT(reg, v) \ 64 do { \ 65 WREG8(MGAREG_CRTC_INDEX, reg); \ 66 WREG8(MGAREG_CRTC_DATA, v); \ 67 } while (0) \ 68 69 70 #define WREG_ECRT(reg, v) \ 71 do { \ 72 WREG8(MGAREG_CRTCEXT_INDEX, reg); \ 73 WREG8(MGAREG_CRTCEXT_DATA, v); \ 74 } while (0) \ 75 76 #define GFX_INDEX 0x1fce 77 #define GFX_DATA 0x1fcf 78 79 #define WREG_GFX(reg, v) \ 80 do { \ 81 WREG8(GFX_INDEX, reg); \ 82 WREG8(GFX_DATA, v); \ 83 } while (0) \ 84 85 #define DAC_INDEX 0x3c00 86 #define DAC_DATA 0x3c0a 87 88 #define WREG_DAC(reg, v) \ 89 do { \ 90 WREG8(DAC_INDEX, reg); \ 91 WREG8(DAC_DATA, v); \ 92 } while (0) \ 93 94 #define MGA_MISC_OUT 0x1fc2 95 #define MGA_MISC_IN 0x1fcc 96 97 #define MGAG200_MAX_FB_HEIGHT 4096 98 #define MGAG200_MAX_FB_WIDTH 4096 99 100 #define MATROX_DPMS_CLEARED (-1) 101 102 #define to_mga_crtc(x) container_of(x, struct mga_crtc, base) 103 #define to_mga_encoder(x) container_of(x, struct mga_encoder, base) 104 #define to_mga_connector(x) container_of(x, struct mga_connector, base) 105 #define to_mga_framebuffer(x) container_of(x, struct mga_framebuffer, base) 106 107 struct mga_framebuffer { 108 struct drm_framebuffer base; 109 struct drm_gem_object *obj; 110 }; 111 112 struct mga_fbdev { 113 struct drm_fb_helper helper; 114 struct mga_framebuffer mfb; 115 void *sysram; 116 int size; 117 struct ttm_bo_kmap_obj mapping; 118 int x1, y1, x2, y2; /* dirty rect */ 119 spinlock_t dirty_lock; 120 }; 121 122 struct mga_crtc { 123 struct drm_crtc base; 124 u8 lut_r[256], lut_g[256], lut_b[256]; 125 int last_dpms; 126 bool enabled; 127 }; 128 129 struct mga_mode_info { 130 bool mode_config_initialized; 131 struct mga_crtc *crtc; 132 }; 133 134 struct mga_encoder { 135 struct drm_encoder base; 136 int last_dpms; 137 }; 138 139 140 struct mga_i2c_chan { 141 struct i2c_adapter adapter; 142 struct drm_device *dev; 143 struct i2c_algo_bit_data bit; 144 int data, clock; 145 }; 146 147 struct mga_connector { 148 struct drm_connector base; 149 struct mga_i2c_chan *i2c; 150 }; 151 152 struct mga_cursor { 153 /* 154 We have to have 2 buffers for the cursor to avoid occasional 155 corruption while switching cursor icons. 156 If either of these is NULL, then don't do hardware cursors, and 157 fall back to software. 158 */ 159 struct mgag200_bo *pixels_1; 160 struct mgag200_bo *pixels_2; 161 u64 pixels_1_gpu_addr, pixels_2_gpu_addr; 162 /* The currently displayed icon, this points to one of pixels_1, or pixels_2 */ 163 struct mgag200_bo *pixels_current; 164 /* The previously displayed icon */ 165 struct mgag200_bo *pixels_prev; 166 }; 167 168 struct mga_mc { 169 resource_size_t vram_size; 170 resource_size_t vram_base; 171 resource_size_t vram_window; 172 }; 173 174 enum mga_type { 175 G200_SE_A, 176 G200_SE_B, 177 G200_WB, 178 G200_EV, 179 G200_EH, 180 G200_ER, 181 }; 182 183 #define IS_G200_SE(mdev) (mdev->type == G200_SE_A || mdev->type == G200_SE_B) 184 185 struct mga_device { 186 struct drm_device *dev; 187 unsigned long flags; 188 189 resource_size_t rmmio_base; 190 resource_size_t rmmio_size; 191 void __iomem *rmmio; 192 193 drm_local_map_t *framebuffer; 194 195 struct mga_mc mc; 196 struct mga_mode_info mode_info; 197 198 struct mga_fbdev *mfbdev; 199 struct mga_cursor cursor; 200 201 bool suspended; 202 int num_crtc; 203 enum mga_type type; 204 int has_sdram; 205 struct drm_display_mode mode; 206 207 int bpp_shifts[4]; 208 209 int fb_mtrr; 210 211 struct { 212 struct drm_global_reference mem_global_ref; 213 struct ttm_bo_global_ref bo_global_ref; 214 struct ttm_bo_device bdev; 215 } ttm; 216 217 /* SE model number stored in reg 0x1e24 */ 218 u32 unique_rev_id; 219 }; 220 221 222 struct mgag200_bo { 223 struct ttm_buffer_object bo; 224 struct ttm_placement placement; 225 struct ttm_bo_kmap_obj kmap; 226 struct drm_gem_object gem; 227 u32 placements[3]; 228 int pin_count; 229 }; 230 #define gem_to_mga_bo(gobj) container_of((gobj), struct mgag200_bo, gem) 231 232 static inline struct mgag200_bo * 233 mgag200_bo(struct ttm_buffer_object *bo) 234 { 235 return container_of(bo, struct mgag200_bo, bo); 236 } 237 /* mgag200_crtc.c */ 238 void mga_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, 239 u16 blue, int regno); 240 void mga_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, 241 u16 *blue, int regno); 242 243 /* mgag200_mode.c */ 244 int mgag200_modeset_init(struct mga_device *mdev); 245 void mgag200_modeset_fini(struct mga_device *mdev); 246 247 /* mgag200_fb.c */ 248 int mgag200_fbdev_init(struct mga_device *mdev); 249 void mgag200_fbdev_fini(struct mga_device *mdev); 250 251 /* mgag200_main.c */ 252 int mgag200_framebuffer_init(struct drm_device *dev, 253 struct mga_framebuffer *mfb, 254 struct drm_mode_fb_cmd2 *mode_cmd, 255 struct drm_gem_object *obj); 256 257 258 int mgag200_driver_load(struct drm_device *dev, unsigned long flags); 259 int mgag200_driver_unload(struct drm_device *dev); 260 int mgag200_gem_create(struct drm_device *dev, 261 u32 size, bool iskernel, 262 struct drm_gem_object **obj); 263 int mgag200_dumb_create(struct drm_file *file, 264 struct drm_device *dev, 265 struct drm_mode_create_dumb *args); 266 void mgag200_gem_free_object(struct drm_gem_object *obj); 267 int 268 mgag200_dumb_mmap_offset(struct drm_file *file, 269 struct drm_device *dev, 270 uint32_t handle, 271 uint64_t *offset); 272 /* mgag200_i2c.c */ 273 struct mga_i2c_chan *mgag200_i2c_create(struct drm_device *dev); 274 void mgag200_i2c_destroy(struct mga_i2c_chan *i2c); 275 276 #define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT) 277 void mgag200_ttm_placement(struct mgag200_bo *bo, int domain); 278 279 static inline int mgag200_bo_reserve(struct mgag200_bo *bo, bool no_wait) 280 { 281 int ret; 282 283 ret = ttm_bo_reserve(&bo->bo, true, no_wait, false, 0); 284 if (ret) { 285 if (ret != -ERESTARTSYS && ret != -EBUSY) 286 DRM_ERROR("reserve failed %p\n", bo); 287 return ret; 288 } 289 return 0; 290 } 291 292 static inline void mgag200_bo_unreserve(struct mgag200_bo *bo) 293 { 294 ttm_bo_unreserve(&bo->bo); 295 } 296 297 int mgag200_bo_create(struct drm_device *dev, int size, int align, 298 uint32_t flags, struct mgag200_bo **pastbo); 299 int mgag200_mm_init(struct mga_device *mdev); 300 void mgag200_mm_fini(struct mga_device *mdev); 301 int mgag200_mmap(struct file *filp, struct vm_area_struct *vma); 302 int mgag200_bo_pin(struct mgag200_bo *bo, u32 pl_flag, u64 *gpu_addr); 303 int mgag200_bo_unpin(struct mgag200_bo *bo); 304 int mgag200_bo_push_sysram(struct mgag200_bo *bo); 305 /* mgag200_cursor.c */ 306 int mga_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv, 307 uint32_t handle, uint32_t width, uint32_t height); 308 int mga_crtc_cursor_move(struct drm_crtc *crtc, int x, int y); 309 310 #endif /* __MGAG200_DRV_H__ */ 311