1 /* 2 * Copyright 2007-8 Advanced Micro Devices, Inc. 3 * Copyright 2008 Red Hat Inc. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9 * and/or sell copies of the Software, and to permit persons to whom the 10 * Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be included in 13 * all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 21 * OTHER DEALINGS IN THE SOFTWARE. 22 * 23 * Authors: Dave Airlie 24 * Alex Deucher 25 */ 26 #include <drm/drmP.h> 27 #include <drm/radeon_drm.h> 28 #include "radeon.h" 29 30 static void radeon_lock_cursor(struct drm_crtc *crtc, bool lock) 31 { 32 struct radeon_device *rdev = crtc->dev->dev_private; 33 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 34 uint32_t cur_lock; 35 36 if (ASIC_IS_DCE4(rdev)) { 37 cur_lock = RREG32(EVERGREEN_CUR_UPDATE + radeon_crtc->crtc_offset); 38 if (lock) 39 cur_lock |= EVERGREEN_CURSOR_UPDATE_LOCK; 40 else 41 cur_lock &= ~EVERGREEN_CURSOR_UPDATE_LOCK; 42 WREG32(EVERGREEN_CUR_UPDATE + radeon_crtc->crtc_offset, cur_lock); 43 } else if (ASIC_IS_AVIVO(rdev)) { 44 cur_lock = RREG32(AVIVO_D1CUR_UPDATE + radeon_crtc->crtc_offset); 45 if (lock) 46 cur_lock |= AVIVO_D1CURSOR_UPDATE_LOCK; 47 else 48 cur_lock &= ~AVIVO_D1CURSOR_UPDATE_LOCK; 49 WREG32(AVIVO_D1CUR_UPDATE + radeon_crtc->crtc_offset, cur_lock); 50 } else { 51 cur_lock = RREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset); 52 if (lock) 53 cur_lock |= RADEON_CUR_LOCK; 54 else 55 cur_lock &= ~RADEON_CUR_LOCK; 56 WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset, cur_lock); 57 } 58 } 59 60 static void radeon_hide_cursor(struct drm_crtc *crtc) 61 { 62 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 63 struct radeon_device *rdev = crtc->dev->dev_private; 64 65 if (ASIC_IS_DCE4(rdev)) { 66 WREG32_IDX(EVERGREEN_CUR_CONTROL + radeon_crtc->crtc_offset, 67 EVERGREEN_CURSOR_MODE(EVERGREEN_CURSOR_24_8_PRE_MULT) | 68 EVERGREEN_CURSOR_URGENT_CONTROL(EVERGREEN_CURSOR_URGENT_1_2)); 69 } else if (ASIC_IS_AVIVO(rdev)) { 70 WREG32_IDX(AVIVO_D1CUR_CONTROL + radeon_crtc->crtc_offset, 71 (AVIVO_D1CURSOR_MODE_24BPP << AVIVO_D1CURSOR_MODE_SHIFT)); 72 } else { 73 u32 reg; 74 switch (radeon_crtc->crtc_id) { 75 case 0: 76 reg = RADEON_CRTC_GEN_CNTL; 77 break; 78 case 1: 79 reg = RADEON_CRTC2_GEN_CNTL; 80 break; 81 default: 82 return; 83 } 84 WREG32_IDX(reg, RREG32_IDX(reg) & ~RADEON_CRTC_CUR_EN); 85 } 86 } 87 88 static void radeon_show_cursor(struct drm_crtc *crtc) 89 { 90 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 91 struct radeon_device *rdev = crtc->dev->dev_private; 92 93 if (ASIC_IS_DCE4(rdev)) { 94 WREG32(EVERGREEN_CUR_SURFACE_ADDRESS_HIGH + radeon_crtc->crtc_offset, 95 upper_32_bits(radeon_crtc->cursor_addr)); 96 WREG32(EVERGREEN_CUR_SURFACE_ADDRESS + radeon_crtc->crtc_offset, 97 lower_32_bits(radeon_crtc->cursor_addr)); 98 WREG32(RADEON_MM_INDEX, EVERGREEN_CUR_CONTROL + radeon_crtc->crtc_offset); 99 WREG32(RADEON_MM_DATA, EVERGREEN_CURSOR_EN | 100 EVERGREEN_CURSOR_MODE(EVERGREEN_CURSOR_24_8_PRE_MULT) | 101 EVERGREEN_CURSOR_URGENT_CONTROL(EVERGREEN_CURSOR_URGENT_1_2)); 102 } else if (ASIC_IS_AVIVO(rdev)) { 103 if (rdev->family >= CHIP_RV770) { 104 if (radeon_crtc->crtc_id) 105 WREG32(R700_D2CUR_SURFACE_ADDRESS_HIGH, 106 upper_32_bits(radeon_crtc->cursor_addr)); 107 else 108 WREG32(R700_D1CUR_SURFACE_ADDRESS_HIGH, 109 upper_32_bits(radeon_crtc->cursor_addr)); 110 } 111 112 WREG32(AVIVO_D1CUR_SURFACE_ADDRESS + radeon_crtc->crtc_offset, 113 lower_32_bits(radeon_crtc->cursor_addr)); 114 WREG32(RADEON_MM_INDEX, AVIVO_D1CUR_CONTROL + radeon_crtc->crtc_offset); 115 WREG32(RADEON_MM_DATA, AVIVO_D1CURSOR_EN | 116 (AVIVO_D1CURSOR_MODE_24BPP << AVIVO_D1CURSOR_MODE_SHIFT)); 117 } else { 118 /* offset is from DISP(2)_BASE_ADDRESS */ 119 WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset, 120 radeon_crtc->cursor_addr - radeon_crtc->legacy_display_base_addr); 121 122 switch (radeon_crtc->crtc_id) { 123 case 0: 124 WREG32(RADEON_MM_INDEX, RADEON_CRTC_GEN_CNTL); 125 break; 126 case 1: 127 WREG32(RADEON_MM_INDEX, RADEON_CRTC2_GEN_CNTL); 128 break; 129 default: 130 return; 131 } 132 133 WREG32_P(RADEON_MM_DATA, (RADEON_CRTC_CUR_EN | 134 (RADEON_CRTC_CUR_MODE_24BPP << RADEON_CRTC_CUR_MODE_SHIFT)), 135 ~(RADEON_CRTC_CUR_EN | RADEON_CRTC_CUR_MODE_MASK)); 136 } 137 } 138 139 static int radeon_cursor_move_locked(struct drm_crtc *crtc, int x, int y) 140 { 141 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 142 struct radeon_device *rdev = crtc->dev->dev_private; 143 int xorigin = 0, yorigin = 0; 144 int w = radeon_crtc->cursor_width; 145 146 if (ASIC_IS_AVIVO(rdev)) { 147 /* avivo cursor are offset into the total surface */ 148 x += crtc->x; 149 y += crtc->y; 150 } 151 DRM_DEBUG("x %d y %d c->x %d c->y %d\n", x, y, crtc->x, crtc->y); 152 153 if (x < 0) { 154 xorigin = min(-x, radeon_crtc->max_cursor_width - 1); 155 x = 0; 156 } 157 if (y < 0) { 158 yorigin = min(-y, radeon_crtc->max_cursor_height - 1); 159 y = 0; 160 } 161 162 /* fixed on DCE6 and newer */ 163 if (ASIC_IS_AVIVO(rdev) && !ASIC_IS_DCE6(rdev)) { 164 int i = 0; 165 struct drm_crtc *crtc_p; 166 167 /* 168 * avivo cursor image can't end on 128 pixel boundary or 169 * go past the end of the frame if both crtcs are enabled 170 * 171 * NOTE: It is safe to access crtc->enabled of other crtcs 172 * without holding either the mode_config lock or the other 173 * crtc's lock as long as write access to this flag _always_ 174 * grabs all locks. 175 */ 176 list_for_each_entry(crtc_p, &crtc->dev->mode_config.crtc_list, head) { 177 if (crtc_p->enabled) 178 i++; 179 } 180 if (i > 1) { 181 int cursor_end, frame_end; 182 183 cursor_end = x - xorigin + w; 184 frame_end = crtc->x + crtc->mode.crtc_hdisplay; 185 if (cursor_end >= frame_end) { 186 w = w - (cursor_end - frame_end); 187 if (!(frame_end & 0x7f)) 188 w--; 189 } else { 190 if (!(cursor_end & 0x7f)) 191 w--; 192 } 193 if (w <= 0) { 194 w = 1; 195 cursor_end = x - xorigin + w; 196 if (!(cursor_end & 0x7f)) { 197 x--; 198 WARN_ON_ONCE(x < 0); 199 } 200 } 201 } 202 } 203 204 if (ASIC_IS_DCE4(rdev)) { 205 WREG32(EVERGREEN_CUR_POSITION + radeon_crtc->crtc_offset, (x << 16) | y); 206 WREG32(EVERGREEN_CUR_HOT_SPOT + radeon_crtc->crtc_offset, (xorigin << 16) | yorigin); 207 WREG32(EVERGREEN_CUR_SIZE + radeon_crtc->crtc_offset, 208 ((w - 1) << 16) | (radeon_crtc->cursor_height - 1)); 209 } else if (ASIC_IS_AVIVO(rdev)) { 210 WREG32(AVIVO_D1CUR_POSITION + radeon_crtc->crtc_offset, (x << 16) | y); 211 WREG32(AVIVO_D1CUR_HOT_SPOT + radeon_crtc->crtc_offset, (xorigin << 16) | yorigin); 212 WREG32(AVIVO_D1CUR_SIZE + radeon_crtc->crtc_offset, 213 ((w - 1) << 16) | (radeon_crtc->cursor_height - 1)); 214 } else { 215 if (crtc->mode.flags & DRM_MODE_FLAG_DBLSCAN) 216 y *= 2; 217 218 WREG32(RADEON_CUR_HORZ_VERT_OFF + radeon_crtc->crtc_offset, 219 (RADEON_CUR_LOCK 220 | (xorigin << 16) 221 | yorigin)); 222 WREG32(RADEON_CUR_HORZ_VERT_POSN + radeon_crtc->crtc_offset, 223 (RADEON_CUR_LOCK 224 | (x << 16) 225 | y)); 226 /* offset is from DISP(2)_BASE_ADDRESS */ 227 WREG32(RADEON_CUR_OFFSET + radeon_crtc->crtc_offset, 228 radeon_crtc->cursor_addr - radeon_crtc->legacy_display_base_addr + 229 yorigin * 256); 230 } 231 232 radeon_crtc->cursor_x = x; 233 radeon_crtc->cursor_y = y; 234 235 return 0; 236 } 237 238 int radeon_crtc_cursor_move(struct drm_crtc *crtc, 239 int x, int y) 240 { 241 int ret; 242 243 radeon_lock_cursor(crtc, true); 244 ret = radeon_cursor_move_locked(crtc, x, y); 245 radeon_lock_cursor(crtc, false); 246 247 return ret; 248 } 249 250 int radeon_crtc_cursor_set2(struct drm_crtc *crtc, 251 struct drm_file *file_priv, 252 uint32_t handle, 253 uint32_t width, 254 uint32_t height, 255 int32_t hot_x, 256 int32_t hot_y) 257 { 258 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 259 struct radeon_device *rdev = crtc->dev->dev_private; 260 struct drm_gem_object *obj; 261 struct radeon_bo *robj; 262 int ret; 263 264 if (!handle) { 265 /* turn off cursor */ 266 radeon_hide_cursor(crtc); 267 obj = NULL; 268 goto unpin; 269 } 270 271 if ((width > radeon_crtc->max_cursor_width) || 272 (height > radeon_crtc->max_cursor_height)) { 273 DRM_ERROR("bad cursor width or height %d x %d\n", width, height); 274 return -EINVAL; 275 } 276 277 obj = drm_gem_object_lookup(crtc->dev, file_priv, handle); 278 if (!obj) { 279 DRM_ERROR("Cannot find cursor object %x for crtc %d\n", handle, radeon_crtc->crtc_id); 280 return -ENOENT; 281 } 282 283 robj = gem_to_radeon_bo(obj); 284 ret = radeon_bo_reserve(robj, false); 285 if (ret != 0) { 286 drm_gem_object_unreference_unlocked(obj); 287 return ret; 288 } 289 /* Only 27 bit offset for legacy cursor */ 290 ret = radeon_bo_pin_restricted(robj, RADEON_GEM_DOMAIN_VRAM, 291 ASIC_IS_AVIVO(rdev) ? 0 : 1 << 27, 292 &radeon_crtc->cursor_addr); 293 radeon_bo_unreserve(robj); 294 if (ret) { 295 DRM_ERROR("Failed to pin new cursor BO (%d)\n", ret); 296 drm_gem_object_unreference_unlocked(obj); 297 return ret; 298 } 299 300 radeon_crtc->cursor_width = width; 301 radeon_crtc->cursor_height = height; 302 303 radeon_lock_cursor(crtc, true); 304 305 if (hot_x != radeon_crtc->cursor_hot_x || 306 hot_y != radeon_crtc->cursor_hot_y) { 307 int x, y; 308 309 x = radeon_crtc->cursor_x + radeon_crtc->cursor_hot_x - hot_x; 310 y = radeon_crtc->cursor_y + radeon_crtc->cursor_hot_y - hot_y; 311 312 radeon_cursor_move_locked(crtc, x, y); 313 314 radeon_crtc->cursor_hot_x = hot_x; 315 radeon_crtc->cursor_hot_y = hot_y; 316 } 317 318 radeon_show_cursor(crtc); 319 320 radeon_lock_cursor(crtc, false); 321 322 unpin: 323 if (radeon_crtc->cursor_bo) { 324 struct radeon_bo *robj = gem_to_radeon_bo(radeon_crtc->cursor_bo); 325 ret = radeon_bo_reserve(robj, false); 326 if (likely(ret == 0)) { 327 radeon_bo_unpin(robj); 328 radeon_bo_unreserve(robj); 329 } 330 drm_gem_object_unreference_unlocked(radeon_crtc->cursor_bo); 331 } 332 333 radeon_crtc->cursor_bo = obj; 334 return 0; 335 } 336 337 /** 338 * radeon_cursor_reset - Re-set the current cursor, if any. 339 * 340 * @crtc: drm crtc 341 * 342 * If the CRTC passed in currently has a cursor assigned, this function 343 * makes sure it's visible. 344 */ 345 void radeon_cursor_reset(struct drm_crtc *crtc) 346 { 347 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 348 349 if (radeon_crtc->cursor_bo) { 350 radeon_lock_cursor(crtc, true); 351 352 radeon_cursor_move_locked(crtc, radeon_crtc->cursor_x, 353 radeon_crtc->cursor_y); 354 355 radeon_show_cursor(crtc); 356 357 radeon_lock_cursor(crtc, false); 358 } 359 } 360