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 }; 119 120 struct mga_crtc { 121 struct drm_crtc base; 122 u8 lut_r[256], lut_g[256], lut_b[256]; 123 int last_dpms; 124 bool enabled; 125 }; 126 127 struct mga_mode_info { 128 bool mode_config_initialized; 129 struct mga_crtc *crtc; 130 }; 131 132 struct mga_encoder { 133 struct drm_encoder base; 134 int last_dpms; 135 }; 136 137 138 struct mga_i2c_chan { 139 struct i2c_adapter adapter; 140 struct drm_device *dev; 141 struct i2c_algo_bit_data bit; 142 int data, clock; 143 }; 144 145 struct mga_connector { 146 struct drm_connector base; 147 struct mga_i2c_chan *i2c; 148 }; 149 150 151 struct mga_mc { 152 resource_size_t vram_size; 153 resource_size_t vram_base; 154 resource_size_t vram_window; 155 }; 156 157 enum mga_type { 158 G200_SE_A, 159 G200_SE_B, 160 G200_WB, 161 G200_EV, 162 G200_EH, 163 G200_ER, 164 }; 165 166 #define IS_G200_SE(mdev) (mdev->type == G200_SE_A || mdev->type == G200_SE_B) 167 168 struct mga_device { 169 struct drm_device *dev; 170 unsigned long flags; 171 172 resource_size_t rmmio_base; 173 resource_size_t rmmio_size; 174 void __iomem *rmmio; 175 176 drm_local_map_t *framebuffer; 177 178 struct mga_mc mc; 179 struct mga_mode_info mode_info; 180 181 struct mga_fbdev *mfbdev; 182 183 bool suspended; 184 int num_crtc; 185 enum mga_type type; 186 int has_sdram; 187 struct drm_display_mode mode; 188 189 int bpp_shifts[4]; 190 191 int fb_mtrr; 192 193 struct { 194 struct drm_global_reference mem_global_ref; 195 struct ttm_bo_global_ref bo_global_ref; 196 struct ttm_bo_device bdev; 197 } ttm; 198 199 u32 reg_1e24; /* SE model number */ 200 }; 201 202 203 struct mgag200_bo { 204 struct ttm_buffer_object bo; 205 struct ttm_placement placement; 206 struct ttm_bo_kmap_obj kmap; 207 struct drm_gem_object gem; 208 u32 placements[3]; 209 int pin_count; 210 }; 211 #define gem_to_mga_bo(gobj) container_of((gobj), struct mgag200_bo, gem) 212 213 static inline struct mgag200_bo * 214 mgag200_bo(struct ttm_buffer_object *bo) 215 { 216 return container_of(bo, struct mgag200_bo, bo); 217 } 218 /* mga_crtc.c */ 219 void mga_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, 220 u16 blue, int regno); 221 void mga_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, 222 u16 *blue, int regno); 223 224 /* mgag200_mode.c */ 225 int mgag200_modeset_init(struct mga_device *mdev); 226 void mgag200_modeset_fini(struct mga_device *mdev); 227 228 /* mga_fbdev.c */ 229 int mgag200_fbdev_init(struct mga_device *mdev); 230 void mgag200_fbdev_fini(struct mga_device *mdev); 231 232 /* mgag200_main.c */ 233 int mgag200_framebuffer_init(struct drm_device *dev, 234 struct mga_framebuffer *mfb, 235 struct drm_mode_fb_cmd2 *mode_cmd, 236 struct drm_gem_object *obj); 237 238 239 int mgag200_driver_load(struct drm_device *dev, unsigned long flags); 240 int mgag200_driver_unload(struct drm_device *dev); 241 int mgag200_gem_create(struct drm_device *dev, 242 u32 size, bool iskernel, 243 struct drm_gem_object **obj); 244 int mgag200_gem_init_object(struct drm_gem_object *obj); 245 int mgag200_dumb_create(struct drm_file *file, 246 struct drm_device *dev, 247 struct drm_mode_create_dumb *args); 248 int mgag200_dumb_destroy(struct drm_file *file, 249 struct drm_device *dev, 250 uint32_t handle); 251 void mgag200_gem_free_object(struct drm_gem_object *obj); 252 int 253 mgag200_dumb_mmap_offset(struct drm_file *file, 254 struct drm_device *dev, 255 uint32_t handle, 256 uint64_t *offset); 257 /* mga_i2c.c */ 258 struct mga_i2c_chan *mgag200_i2c_create(struct drm_device *dev); 259 void mgag200_i2c_destroy(struct mga_i2c_chan *i2c); 260 261 #define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT) 262 void mgag200_ttm_placement(struct mgag200_bo *bo, int domain); 263 264 int mgag200_bo_reserve(struct mgag200_bo *bo, bool no_wait); 265 void mgag200_bo_unreserve(struct mgag200_bo *bo); 266 int mgag200_bo_create(struct drm_device *dev, int size, int align, 267 uint32_t flags, struct mgag200_bo **pastbo); 268 int mgag200_mm_init(struct mga_device *mdev); 269 void mgag200_mm_fini(struct mga_device *mdev); 270 int mgag200_mmap(struct file *filp, struct vm_area_struct *vma); 271 int mgag200_bo_pin(struct mgag200_bo *bo, u32 pl_flag, u64 *gpu_addr); 272 int mgag200_bo_unpin(struct mgag200_bo *bo); 273 int mgag200_bo_push_sysram(struct mgag200_bo *bo); 274 #endif /* __MGAG200_DRV_H__ */ 275