1 /* 2 * Copyright 2008 Advanced Micro Devices, Inc. 3 * Copyright 2008 Red Hat Inc. 4 * Copyright 2009 Jerome Glisse. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: Dave Airlie 25 * Alex Deucher 26 * Jerome Glisse 27 */ 28 #include <linux/seq_file.h> 29 #include "drmP.h" 30 #include "radeon_reg.h" 31 #include "radeon.h" 32 #include "atom.h" 33 #include "r420d.h" 34 35 int r420_mc_init(struct radeon_device *rdev) 36 { 37 int r; 38 39 /* Setup GPU memory space */ 40 rdev->mc.vram_location = 0xFFFFFFFFUL; 41 rdev->mc.gtt_location = 0xFFFFFFFFUL; 42 if (rdev->flags & RADEON_IS_AGP) { 43 r = radeon_agp_init(rdev); 44 if (r) { 45 printk(KERN_WARNING "[drm] Disabling AGP\n"); 46 rdev->flags &= ~RADEON_IS_AGP; 47 rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024; 48 } else { 49 rdev->mc.gtt_location = rdev->mc.agp_base; 50 } 51 } 52 r = radeon_mc_setup(rdev); 53 if (r) { 54 return r; 55 } 56 return 0; 57 } 58 59 void r420_pipes_init(struct radeon_device *rdev) 60 { 61 unsigned tmp; 62 unsigned gb_pipe_select; 63 unsigned num_pipes; 64 65 /* GA_ENHANCE workaround TCL deadlock issue */ 66 WREG32(0x4274, (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3)); 67 /* add idle wait as per freedesktop.org bug 24041 */ 68 if (r100_gui_wait_for_idle(rdev)) { 69 printk(KERN_WARNING "Failed to wait GUI idle while " 70 "programming pipes. Bad things might happen.\n"); 71 } 72 /* get max number of pipes */ 73 gb_pipe_select = RREG32(0x402C); 74 num_pipes = ((gb_pipe_select >> 12) & 3) + 1; 75 rdev->num_gb_pipes = num_pipes; 76 tmp = 0; 77 switch (num_pipes) { 78 default: 79 /* force to 1 pipe */ 80 num_pipes = 1; 81 case 1: 82 tmp = (0 << 1); 83 break; 84 case 2: 85 tmp = (3 << 1); 86 break; 87 case 3: 88 tmp = (6 << 1); 89 break; 90 case 4: 91 tmp = (7 << 1); 92 break; 93 } 94 WREG32(0x42C8, (1 << num_pipes) - 1); 95 /* Sub pixel 1/12 so we can have 4K rendering according to doc */ 96 tmp |= (1 << 4) | (1 << 0); 97 WREG32(0x4018, tmp); 98 if (r100_gui_wait_for_idle(rdev)) { 99 printk(KERN_WARNING "Failed to wait GUI idle while " 100 "programming pipes. Bad things might happen.\n"); 101 } 102 103 tmp = RREG32(0x170C); 104 WREG32(0x170C, tmp | (1 << 31)); 105 106 WREG32(R300_RB2D_DSTCACHE_MODE, 107 RREG32(R300_RB2D_DSTCACHE_MODE) | 108 R300_DC_AUTOFLUSH_ENABLE | 109 R300_DC_DC_DISABLE_IGNORE_PE); 110 111 if (r100_gui_wait_for_idle(rdev)) { 112 printk(KERN_WARNING "Failed to wait GUI idle while " 113 "programming pipes. Bad things might happen.\n"); 114 } 115 116 if (rdev->family == CHIP_RV530) { 117 tmp = RREG32(RV530_GB_PIPE_SELECT2); 118 if ((tmp & 3) == 3) 119 rdev->num_z_pipes = 2; 120 else 121 rdev->num_z_pipes = 1; 122 } else 123 rdev->num_z_pipes = 1; 124 125 DRM_INFO("radeon: %d quad pipes, %d z pipes initialized.\n", 126 rdev->num_gb_pipes, rdev->num_z_pipes); 127 } 128 129 u32 r420_mc_rreg(struct radeon_device *rdev, u32 reg) 130 { 131 u32 r; 132 133 WREG32(R_0001F8_MC_IND_INDEX, S_0001F8_MC_IND_ADDR(reg)); 134 r = RREG32(R_0001FC_MC_IND_DATA); 135 return r; 136 } 137 138 void r420_mc_wreg(struct radeon_device *rdev, u32 reg, u32 v) 139 { 140 WREG32(R_0001F8_MC_IND_INDEX, S_0001F8_MC_IND_ADDR(reg) | 141 S_0001F8_MC_IND_WR_EN(1)); 142 WREG32(R_0001FC_MC_IND_DATA, v); 143 } 144 145 static void r420_debugfs(struct radeon_device *rdev) 146 { 147 if (r100_debugfs_rbbm_init(rdev)) { 148 DRM_ERROR("Failed to register debugfs file for RBBM !\n"); 149 } 150 if (r420_debugfs_pipes_info_init(rdev)) { 151 DRM_ERROR("Failed to register debugfs file for pipes !\n"); 152 } 153 } 154 155 static void r420_clock_resume(struct radeon_device *rdev) 156 { 157 u32 sclk_cntl; 158 159 if (radeon_dynclks != -1 && radeon_dynclks) 160 radeon_atom_set_clock_gating(rdev, 1); 161 sclk_cntl = RREG32_PLL(R_00000D_SCLK_CNTL); 162 sclk_cntl |= S_00000D_FORCE_CP(1) | S_00000D_FORCE_VIP(1); 163 if (rdev->family == CHIP_R420) 164 sclk_cntl |= S_00000D_FORCE_PX(1) | S_00000D_FORCE_TX(1); 165 WREG32_PLL(R_00000D_SCLK_CNTL, sclk_cntl); 166 } 167 168 static int r420_startup(struct radeon_device *rdev) 169 { 170 int r; 171 172 r300_mc_program(rdev); 173 /* Resume clock */ 174 r420_clock_resume(rdev); 175 /* Initialize GART (initialize after TTM so we can allocate 176 * memory through TTM but finalize after TTM) */ 177 if (rdev->flags & RADEON_IS_PCIE) { 178 r = rv370_pcie_gart_enable(rdev); 179 if (r) 180 return r; 181 } 182 if (rdev->flags & RADEON_IS_PCI) { 183 r = r100_pci_gart_enable(rdev); 184 if (r) 185 return r; 186 } 187 r420_pipes_init(rdev); 188 /* Enable IRQ */ 189 r100_irq_set(rdev); 190 /* 1M ring buffer */ 191 r = r100_cp_init(rdev, 1024 * 1024); 192 if (r) { 193 dev_err(rdev->dev, "failled initializing CP (%d).\n", r); 194 return r; 195 } 196 r = r100_wb_init(rdev); 197 if (r) { 198 dev_err(rdev->dev, "failled initializing WB (%d).\n", r); 199 } 200 r = r100_ib_init(rdev); 201 if (r) { 202 dev_err(rdev->dev, "failled initializing IB (%d).\n", r); 203 return r; 204 } 205 return 0; 206 } 207 208 int r420_resume(struct radeon_device *rdev) 209 { 210 /* Make sur GART are not working */ 211 if (rdev->flags & RADEON_IS_PCIE) 212 rv370_pcie_gart_disable(rdev); 213 if (rdev->flags & RADEON_IS_PCI) 214 r100_pci_gart_disable(rdev); 215 /* Resume clock before doing reset */ 216 r420_clock_resume(rdev); 217 /* Reset gpu before posting otherwise ATOM will enter infinite loop */ 218 if (radeon_gpu_reset(rdev)) { 219 dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n", 220 RREG32(R_000E40_RBBM_STATUS), 221 RREG32(R_0007C0_CP_STAT)); 222 } 223 /* check if cards are posted or not */ 224 if (rdev->is_atom_bios) { 225 atom_asic_init(rdev->mode_info.atom_context); 226 } else { 227 radeon_combios_asic_init(rdev->ddev); 228 } 229 /* Resume clock after posting */ 230 r420_clock_resume(rdev); 231 232 return r420_startup(rdev); 233 } 234 235 int r420_suspend(struct radeon_device *rdev) 236 { 237 r100_cp_disable(rdev); 238 r100_wb_disable(rdev); 239 r100_irq_disable(rdev); 240 if (rdev->flags & RADEON_IS_PCIE) 241 rv370_pcie_gart_disable(rdev); 242 if (rdev->flags & RADEON_IS_PCI) 243 r100_pci_gart_disable(rdev); 244 return 0; 245 } 246 247 void r420_fini(struct radeon_device *rdev) 248 { 249 r100_cp_fini(rdev); 250 r100_wb_fini(rdev); 251 r100_ib_fini(rdev); 252 radeon_gem_fini(rdev); 253 if (rdev->flags & RADEON_IS_PCIE) 254 rv370_pcie_gart_fini(rdev); 255 if (rdev->flags & RADEON_IS_PCI) 256 r100_pci_gart_fini(rdev); 257 radeon_agp_fini(rdev); 258 radeon_irq_kms_fini(rdev); 259 radeon_fence_driver_fini(rdev); 260 radeon_object_fini(rdev); 261 if (rdev->is_atom_bios) { 262 radeon_atombios_fini(rdev); 263 } else { 264 radeon_combios_fini(rdev); 265 } 266 kfree(rdev->bios); 267 rdev->bios = NULL; 268 } 269 270 int r420_init(struct radeon_device *rdev) 271 { 272 int r; 273 274 /* Initialize scratch registers */ 275 radeon_scratch_init(rdev); 276 /* Initialize surface registers */ 277 radeon_surface_init(rdev); 278 /* TODO: disable VGA need to use VGA request */ 279 /* BIOS*/ 280 if (!radeon_get_bios(rdev)) { 281 if (ASIC_IS_AVIVO(rdev)) 282 return -EINVAL; 283 } 284 if (rdev->is_atom_bios) { 285 r = radeon_atombios_init(rdev); 286 if (r) { 287 return r; 288 } 289 } else { 290 r = radeon_combios_init(rdev); 291 if (r) { 292 return r; 293 } 294 } 295 /* Reset gpu before posting otherwise ATOM will enter infinite loop */ 296 if (radeon_gpu_reset(rdev)) { 297 dev_warn(rdev->dev, 298 "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n", 299 RREG32(R_000E40_RBBM_STATUS), 300 RREG32(R_0007C0_CP_STAT)); 301 } 302 /* check if cards are posted or not */ 303 if (radeon_boot_test_post_card(rdev) == false) 304 return -EINVAL; 305 306 /* Initialize clocks */ 307 radeon_get_clock_info(rdev->ddev); 308 /* Initialize power management */ 309 radeon_pm_init(rdev); 310 /* Get vram informations */ 311 r300_vram_info(rdev); 312 /* Initialize memory controller (also test AGP) */ 313 r = r420_mc_init(rdev); 314 if (r) { 315 return r; 316 } 317 r420_debugfs(rdev); 318 /* Fence driver */ 319 r = radeon_fence_driver_init(rdev); 320 if (r) { 321 return r; 322 } 323 r = radeon_irq_kms_init(rdev); 324 if (r) { 325 return r; 326 } 327 /* Memory manager */ 328 r = radeon_object_init(rdev); 329 if (r) { 330 return r; 331 } 332 if (rdev->family == CHIP_R420) 333 r100_enable_bm(rdev); 334 335 if (rdev->flags & RADEON_IS_PCIE) { 336 r = rv370_pcie_gart_init(rdev); 337 if (r) 338 return r; 339 } 340 if (rdev->flags & RADEON_IS_PCI) { 341 r = r100_pci_gart_init(rdev); 342 if (r) 343 return r; 344 } 345 r300_set_reg_safe(rdev); 346 rdev->accel_working = true; 347 r = r420_startup(rdev); 348 if (r) { 349 /* Somethings want wront with the accel init stop accel */ 350 dev_err(rdev->dev, "Disabling GPU acceleration\n"); 351 r420_suspend(rdev); 352 r100_cp_fini(rdev); 353 r100_wb_fini(rdev); 354 r100_ib_fini(rdev); 355 if (rdev->flags & RADEON_IS_PCIE) 356 rv370_pcie_gart_fini(rdev); 357 if (rdev->flags & RADEON_IS_PCI) 358 r100_pci_gart_fini(rdev); 359 radeon_agp_fini(rdev); 360 radeon_irq_kms_fini(rdev); 361 rdev->accel_working = false; 362 } 363 return 0; 364 } 365 366 /* 367 * Debugfs info 368 */ 369 #if defined(CONFIG_DEBUG_FS) 370 static int r420_debugfs_pipes_info(struct seq_file *m, void *data) 371 { 372 struct drm_info_node *node = (struct drm_info_node *) m->private; 373 struct drm_device *dev = node->minor->dev; 374 struct radeon_device *rdev = dev->dev_private; 375 uint32_t tmp; 376 377 tmp = RREG32(R400_GB_PIPE_SELECT); 378 seq_printf(m, "GB_PIPE_SELECT 0x%08x\n", tmp); 379 tmp = RREG32(R300_GB_TILE_CONFIG); 380 seq_printf(m, "GB_TILE_CONFIG 0x%08x\n", tmp); 381 tmp = RREG32(R300_DST_PIPE_CONFIG); 382 seq_printf(m, "DST_PIPE_CONFIG 0x%08x\n", tmp); 383 return 0; 384 } 385 386 static struct drm_info_list r420_pipes_info_list[] = { 387 {"r420_pipes_info", r420_debugfs_pipes_info, 0, NULL}, 388 }; 389 #endif 390 391 int r420_debugfs_pipes_info_init(struct radeon_device *rdev) 392 { 393 #if defined(CONFIG_DEBUG_FS) 394 return radeon_debugfs_add_files(rdev, r420_pipes_info_list, 1); 395 #else 396 return 0; 397 #endif 398 } 399