1 /* 2 * Copyright (C) 2013 Red Hat 3 * Author: Rob Clark <robdclark@gmail.com> 4 * 5 * This program is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 as published by 7 * the Free Software Foundation. 8 * 9 * This program is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 12 * more details. 13 * 14 * You should have received a copy of the GNU General Public License along with 15 * this program. If not, see <http://www.gnu.org/licenses/>. 16 */ 17 18 #ifdef CONFIG_MSM_OCMEM 19 # include <mach/ocmem.h> 20 #endif 21 22 #include "a3xx_gpu.h" 23 24 #define A3XX_INT0_MASK \ 25 (A3XX_INT0_RBBM_AHB_ERROR | \ 26 A3XX_INT0_RBBM_ATB_BUS_OVERFLOW | \ 27 A3XX_INT0_CP_T0_PACKET_IN_IB | \ 28 A3XX_INT0_CP_OPCODE_ERROR | \ 29 A3XX_INT0_CP_RESERVED_BIT_ERROR | \ 30 A3XX_INT0_CP_HW_FAULT | \ 31 A3XX_INT0_CP_IB1_INT | \ 32 A3XX_INT0_CP_IB2_INT | \ 33 A3XX_INT0_CP_RB_INT | \ 34 A3XX_INT0_CP_REG_PROTECT_FAULT | \ 35 A3XX_INT0_CP_AHB_ERROR_HALT | \ 36 A3XX_INT0_UCHE_OOB_ACCESS) 37 38 39 static bool hang_debug = false; 40 MODULE_PARM_DESC(hang_debug, "Dump registers when hang is detected (can be slow!)"); 41 module_param_named(hang_debug, hang_debug, bool, 0600); 42 static void a3xx_dump(struct msm_gpu *gpu); 43 44 static void a3xx_me_init(struct msm_gpu *gpu) 45 { 46 struct msm_ringbuffer *ring = gpu->rb; 47 48 OUT_PKT3(ring, CP_ME_INIT, 17); 49 OUT_RING(ring, 0x000003f7); 50 OUT_RING(ring, 0x00000000); 51 OUT_RING(ring, 0x00000000); 52 OUT_RING(ring, 0x00000000); 53 OUT_RING(ring, 0x00000080); 54 OUT_RING(ring, 0x00000100); 55 OUT_RING(ring, 0x00000180); 56 OUT_RING(ring, 0x00006600); 57 OUT_RING(ring, 0x00000150); 58 OUT_RING(ring, 0x0000014e); 59 OUT_RING(ring, 0x00000154); 60 OUT_RING(ring, 0x00000001); 61 OUT_RING(ring, 0x00000000); 62 OUT_RING(ring, 0x00000000); 63 OUT_RING(ring, 0x00000000); 64 OUT_RING(ring, 0x00000000); 65 OUT_RING(ring, 0x00000000); 66 67 gpu->funcs->flush(gpu); 68 gpu->funcs->idle(gpu); 69 } 70 71 static int a3xx_hw_init(struct msm_gpu *gpu) 72 { 73 struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); 74 struct a3xx_gpu *a3xx_gpu = to_a3xx_gpu(adreno_gpu); 75 uint32_t *ptr, len; 76 int i, ret; 77 78 DBG("%s", gpu->name); 79 80 if (adreno_is_a305(adreno_gpu)) { 81 /* Set up 16 deep read/write request queues: */ 82 gpu_write(gpu, REG_A3XX_VBIF_IN_RD_LIM_CONF0, 0x10101010); 83 gpu_write(gpu, REG_A3XX_VBIF_IN_RD_LIM_CONF1, 0x10101010); 84 gpu_write(gpu, REG_A3XX_VBIF_OUT_RD_LIM_CONF0, 0x10101010); 85 gpu_write(gpu, REG_A3XX_VBIF_OUT_WR_LIM_CONF0, 0x10101010); 86 gpu_write(gpu, REG_A3XX_VBIF_DDR_OUT_MAX_BURST, 0x0000303); 87 gpu_write(gpu, REG_A3XX_VBIF_IN_WR_LIM_CONF0, 0x10101010); 88 gpu_write(gpu, REG_A3XX_VBIF_IN_WR_LIM_CONF1, 0x10101010); 89 /* Enable WR-REQ: */ 90 gpu_write(gpu, REG_A3XX_VBIF_GATE_OFF_WRREQ_EN, 0x0000ff); 91 /* Set up round robin arbitration between both AXI ports: */ 92 gpu_write(gpu, REG_A3XX_VBIF_ARB_CTL, 0x00000030); 93 /* Set up AOOO: */ 94 gpu_write(gpu, REG_A3XX_VBIF_OUT_AXI_AOOO_EN, 0x0000003c); 95 gpu_write(gpu, REG_A3XX_VBIF_OUT_AXI_AOOO, 0x003c003c); 96 97 } else if (adreno_is_a320(adreno_gpu)) { 98 /* Set up 16 deep read/write request queues: */ 99 gpu_write(gpu, REG_A3XX_VBIF_IN_RD_LIM_CONF0, 0x10101010); 100 gpu_write(gpu, REG_A3XX_VBIF_IN_RD_LIM_CONF1, 0x10101010); 101 gpu_write(gpu, REG_A3XX_VBIF_OUT_RD_LIM_CONF0, 0x10101010); 102 gpu_write(gpu, REG_A3XX_VBIF_OUT_WR_LIM_CONF0, 0x10101010); 103 gpu_write(gpu, REG_A3XX_VBIF_DDR_OUT_MAX_BURST, 0x0000303); 104 gpu_write(gpu, REG_A3XX_VBIF_IN_WR_LIM_CONF0, 0x10101010); 105 gpu_write(gpu, REG_A3XX_VBIF_IN_WR_LIM_CONF1, 0x10101010); 106 /* Enable WR-REQ: */ 107 gpu_write(gpu, REG_A3XX_VBIF_GATE_OFF_WRREQ_EN, 0x0000ff); 108 /* Set up round robin arbitration between both AXI ports: */ 109 gpu_write(gpu, REG_A3XX_VBIF_ARB_CTL, 0x00000030); 110 /* Set up AOOO: */ 111 gpu_write(gpu, REG_A3XX_VBIF_OUT_AXI_AOOO_EN, 0x0000003c); 112 gpu_write(gpu, REG_A3XX_VBIF_OUT_AXI_AOOO, 0x003c003c); 113 /* Enable 1K sort: */ 114 gpu_write(gpu, REG_A3XX_VBIF_ABIT_SORT, 0x000000ff); 115 gpu_write(gpu, REG_A3XX_VBIF_ABIT_SORT_CONF, 0x000000a4); 116 117 } else if (adreno_is_a330v2(adreno_gpu)) { 118 /* 119 * Most of the VBIF registers on 8974v2 have the correct 120 * values at power on, so we won't modify those if we don't 121 * need to 122 */ 123 /* Enable 1k sort: */ 124 gpu_write(gpu, REG_A3XX_VBIF_ABIT_SORT, 0x0001003f); 125 gpu_write(gpu, REG_A3XX_VBIF_ABIT_SORT_CONF, 0x000000a4); 126 /* Enable WR-REQ: */ 127 gpu_write(gpu, REG_A3XX_VBIF_GATE_OFF_WRREQ_EN, 0x00003f); 128 gpu_write(gpu, REG_A3XX_VBIF_DDR_OUT_MAX_BURST, 0x0000303); 129 /* Set up VBIF_ROUND_ROBIN_QOS_ARB: */ 130 gpu_write(gpu, REG_A3XX_VBIF_ROUND_ROBIN_QOS_ARB, 0x0003); 131 132 } else if (adreno_is_a330(adreno_gpu)) { 133 /* Set up 16 deep read/write request queues: */ 134 gpu_write(gpu, REG_A3XX_VBIF_IN_RD_LIM_CONF0, 0x18181818); 135 gpu_write(gpu, REG_A3XX_VBIF_IN_RD_LIM_CONF1, 0x18181818); 136 gpu_write(gpu, REG_A3XX_VBIF_OUT_RD_LIM_CONF0, 0x18181818); 137 gpu_write(gpu, REG_A3XX_VBIF_OUT_WR_LIM_CONF0, 0x18181818); 138 gpu_write(gpu, REG_A3XX_VBIF_DDR_OUT_MAX_BURST, 0x0000303); 139 gpu_write(gpu, REG_A3XX_VBIF_IN_WR_LIM_CONF0, 0x18181818); 140 gpu_write(gpu, REG_A3XX_VBIF_IN_WR_LIM_CONF1, 0x18181818); 141 /* Enable WR-REQ: */ 142 gpu_write(gpu, REG_A3XX_VBIF_GATE_OFF_WRREQ_EN, 0x00003f); 143 /* Set up round robin arbitration between both AXI ports: */ 144 gpu_write(gpu, REG_A3XX_VBIF_ARB_CTL, 0x00000030); 145 /* Set up VBIF_ROUND_ROBIN_QOS_ARB: */ 146 gpu_write(gpu, REG_A3XX_VBIF_ROUND_ROBIN_QOS_ARB, 0x0001); 147 /* Set up AOOO: */ 148 gpu_write(gpu, REG_A3XX_VBIF_OUT_AXI_AOOO_EN, 0x0000003f); 149 gpu_write(gpu, REG_A3XX_VBIF_OUT_AXI_AOOO, 0x003f003f); 150 /* Enable 1K sort: */ 151 gpu_write(gpu, REG_A3XX_VBIF_ABIT_SORT, 0x0001003f); 152 gpu_write(gpu, REG_A3XX_VBIF_ABIT_SORT_CONF, 0x000000a4); 153 /* Disable VBIF clock gating. This is to enable AXI running 154 * higher frequency than GPU: 155 */ 156 gpu_write(gpu, REG_A3XX_VBIF_CLKON, 0x00000001); 157 158 } else { 159 BUG(); 160 } 161 162 /* Make all blocks contribute to the GPU BUSY perf counter: */ 163 gpu_write(gpu, REG_A3XX_RBBM_GPU_BUSY_MASKED, 0xffffffff); 164 165 /* Tune the hystersis counters for SP and CP idle detection: */ 166 gpu_write(gpu, REG_A3XX_RBBM_SP_HYST_CNT, 0x10); 167 gpu_write(gpu, REG_A3XX_RBBM_WAIT_IDLE_CLOCKS_CTL, 0x10); 168 169 /* Enable the RBBM error reporting bits. This lets us get 170 * useful information on failure: 171 */ 172 gpu_write(gpu, REG_A3XX_RBBM_AHB_CTL0, 0x00000001); 173 174 /* Enable AHB error reporting: */ 175 gpu_write(gpu, REG_A3XX_RBBM_AHB_CTL1, 0xa6ffffff); 176 177 /* Turn on the power counters: */ 178 gpu_write(gpu, REG_A3XX_RBBM_RBBM_CTL, 0x00030000); 179 180 /* Turn on hang detection - this spews a lot of useful information 181 * into the RBBM registers on a hang: 182 */ 183 gpu_write(gpu, REG_A3XX_RBBM_INTERFACE_HANG_INT_CTL, 0x00010fff); 184 185 /* Enable 64-byte cacheline size. HW Default is 32-byte (0x000000E0): */ 186 gpu_write(gpu, REG_A3XX_UCHE_CACHE_MODE_CONTROL_REG, 0x00000001); 187 188 /* Enable Clock gating: */ 189 if (adreno_is_a320(adreno_gpu)) 190 gpu_write(gpu, REG_A3XX_RBBM_CLOCK_CTL, 0xbfffffff); 191 else if (adreno_is_a330v2(adreno_gpu)) 192 gpu_write(gpu, REG_A3XX_RBBM_CLOCK_CTL, 0xaaaaaaaa); 193 else if (adreno_is_a330(adreno_gpu)) 194 gpu_write(gpu, REG_A3XX_RBBM_CLOCK_CTL, 0xbffcffff); 195 196 if (adreno_is_a330v2(adreno_gpu)) 197 gpu_write(gpu, REG_A3XX_RBBM_GPR0_CTL, 0x05515455); 198 else if (adreno_is_a330(adreno_gpu)) 199 gpu_write(gpu, REG_A3XX_RBBM_GPR0_CTL, 0x00000000); 200 201 /* Set the OCMEM base address for A330, etc */ 202 if (a3xx_gpu->ocmem_hdl) { 203 gpu_write(gpu, REG_A3XX_RB_GMEM_BASE_ADDR, 204 (unsigned int)(a3xx_gpu->ocmem_base >> 14)); 205 } 206 207 /* Turn on performance counters: */ 208 gpu_write(gpu, REG_A3XX_RBBM_PERFCTR_CTL, 0x01); 209 210 /* Set SP perfcounter 7 to count SP_FS_FULL_ALU_INSTRUCTIONS 211 * we will use this to augment our hang detection: 212 */ 213 gpu_write(gpu, REG_A3XX_SP_PERFCOUNTER7_SELECT, 214 SP_FS_FULL_ALU_INSTRUCTIONS); 215 216 gpu_write(gpu, REG_A3XX_RBBM_INT_0_MASK, A3XX_INT0_MASK); 217 218 ret = adreno_hw_init(gpu); 219 if (ret) 220 return ret; 221 222 /* setup access protection: */ 223 gpu_write(gpu, REG_A3XX_CP_PROTECT_CTRL, 0x00000007); 224 225 /* RBBM registers */ 226 gpu_write(gpu, REG_A3XX_CP_PROTECT(0), 0x63000040); 227 gpu_write(gpu, REG_A3XX_CP_PROTECT(1), 0x62000080); 228 gpu_write(gpu, REG_A3XX_CP_PROTECT(2), 0x600000cc); 229 gpu_write(gpu, REG_A3XX_CP_PROTECT(3), 0x60000108); 230 gpu_write(gpu, REG_A3XX_CP_PROTECT(4), 0x64000140); 231 gpu_write(gpu, REG_A3XX_CP_PROTECT(5), 0x66000400); 232 233 /* CP registers */ 234 gpu_write(gpu, REG_A3XX_CP_PROTECT(6), 0x65000700); 235 gpu_write(gpu, REG_A3XX_CP_PROTECT(7), 0x610007d8); 236 gpu_write(gpu, REG_A3XX_CP_PROTECT(8), 0x620007e0); 237 gpu_write(gpu, REG_A3XX_CP_PROTECT(9), 0x61001178); 238 gpu_write(gpu, REG_A3XX_CP_PROTECT(10), 0x64001180); 239 240 /* RB registers */ 241 gpu_write(gpu, REG_A3XX_CP_PROTECT(11), 0x60003300); 242 243 /* VBIF registers */ 244 gpu_write(gpu, REG_A3XX_CP_PROTECT(12), 0x6b00c000); 245 246 /* NOTE: PM4/micro-engine firmware registers look to be the same 247 * for a2xx and a3xx.. we could possibly push that part down to 248 * adreno_gpu base class. Or push both PM4 and PFP but 249 * parameterize the pfp ucode addr/data registers.. 250 */ 251 252 /* Load PM4: */ 253 ptr = (uint32_t *)(adreno_gpu->pm4->data); 254 len = adreno_gpu->pm4->size / 4; 255 DBG("loading PM4 ucode version: %x", ptr[1]); 256 257 gpu_write(gpu, REG_AXXX_CP_DEBUG, 258 AXXX_CP_DEBUG_DYNAMIC_CLK_DISABLE | 259 AXXX_CP_DEBUG_MIU_128BIT_WRITE_ENABLE); 260 gpu_write(gpu, REG_AXXX_CP_ME_RAM_WADDR, 0); 261 for (i = 1; i < len; i++) 262 gpu_write(gpu, REG_AXXX_CP_ME_RAM_DATA, ptr[i]); 263 264 /* Load PFP: */ 265 ptr = (uint32_t *)(adreno_gpu->pfp->data); 266 len = adreno_gpu->pfp->size / 4; 267 DBG("loading PFP ucode version: %x", ptr[5]); 268 269 gpu_write(gpu, REG_A3XX_CP_PFP_UCODE_ADDR, 0); 270 for (i = 1; i < len; i++) 271 gpu_write(gpu, REG_A3XX_CP_PFP_UCODE_DATA, ptr[i]); 272 273 /* CP ROQ queue sizes (bytes) - RB:16, ST:16, IB1:32, IB2:64 */ 274 if (adreno_is_a305(adreno_gpu) || adreno_is_a320(adreno_gpu)) { 275 gpu_write(gpu, REG_AXXX_CP_QUEUE_THRESHOLDS, 276 AXXX_CP_QUEUE_THRESHOLDS_CSQ_IB1_START(2) | 277 AXXX_CP_QUEUE_THRESHOLDS_CSQ_IB2_START(6) | 278 AXXX_CP_QUEUE_THRESHOLDS_CSQ_ST_START(14)); 279 } else if (adreno_is_a330(adreno_gpu)) { 280 /* NOTE: this (value take from downstream android driver) 281 * includes some bits outside of the known bitfields. But 282 * A330 has this "MERCIU queue" thing too, which might 283 * explain a new bitfield or reshuffling: 284 */ 285 gpu_write(gpu, REG_AXXX_CP_QUEUE_THRESHOLDS, 0x003e2008); 286 } 287 288 /* clear ME_HALT to start micro engine */ 289 gpu_write(gpu, REG_AXXX_CP_ME_CNTL, 0); 290 291 a3xx_me_init(gpu); 292 293 return 0; 294 } 295 296 static void a3xx_recover(struct msm_gpu *gpu) 297 { 298 /* dump registers before resetting gpu, if enabled: */ 299 if (hang_debug) 300 a3xx_dump(gpu); 301 gpu_write(gpu, REG_A3XX_RBBM_SW_RESET_CMD, 1); 302 gpu_read(gpu, REG_A3XX_RBBM_SW_RESET_CMD); 303 gpu_write(gpu, REG_A3XX_RBBM_SW_RESET_CMD, 0); 304 adreno_recover(gpu); 305 } 306 307 static void a3xx_destroy(struct msm_gpu *gpu) 308 { 309 struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); 310 struct a3xx_gpu *a3xx_gpu = to_a3xx_gpu(adreno_gpu); 311 312 DBG("%s", gpu->name); 313 314 adreno_gpu_cleanup(adreno_gpu); 315 316 #ifdef CONFIG_MSM_OCMEM 317 if (a3xx_gpu->ocmem_base) 318 ocmem_free(OCMEM_GRAPHICS, a3xx_gpu->ocmem_hdl); 319 #endif 320 321 kfree(a3xx_gpu); 322 } 323 324 static void a3xx_idle(struct msm_gpu *gpu) 325 { 326 /* wait for ringbuffer to drain: */ 327 adreno_idle(gpu); 328 329 /* then wait for GPU to finish: */ 330 if (spin_until(!(gpu_read(gpu, REG_A3XX_RBBM_STATUS) & 331 A3XX_RBBM_STATUS_GPU_BUSY))) 332 DRM_ERROR("%s: timeout waiting for GPU to idle!\n", gpu->name); 333 334 /* TODO maybe we need to reset GPU here to recover from hang? */ 335 } 336 337 static irqreturn_t a3xx_irq(struct msm_gpu *gpu) 338 { 339 uint32_t status; 340 341 status = gpu_read(gpu, REG_A3XX_RBBM_INT_0_STATUS); 342 DBG("%s: %08x", gpu->name, status); 343 344 // TODO 345 346 gpu_write(gpu, REG_A3XX_RBBM_INT_CLEAR_CMD, status); 347 348 msm_gpu_retire(gpu); 349 350 return IRQ_HANDLED; 351 } 352 353 static const unsigned int a3xx_registers[] = { 354 0x0000, 0x0002, 0x0010, 0x0012, 0x0018, 0x0018, 0x0020, 0x0027, 355 0x0029, 0x002b, 0x002e, 0x0033, 0x0040, 0x0042, 0x0050, 0x005c, 356 0x0060, 0x006c, 0x0080, 0x0082, 0x0084, 0x0088, 0x0090, 0x00e5, 357 0x00ea, 0x00ed, 0x0100, 0x0100, 0x0110, 0x0123, 0x01c0, 0x01c1, 358 0x01c3, 0x01c5, 0x01c7, 0x01c7, 0x01d5, 0x01d9, 0x01dc, 0x01dd, 359 0x01ea, 0x01ea, 0x01ee, 0x01f1, 0x01f5, 0x01f5, 0x01fc, 0x01ff, 360 0x0440, 0x0440, 0x0443, 0x0443, 0x0445, 0x0445, 0x044d, 0x044f, 361 0x0452, 0x0452, 0x0454, 0x046f, 0x047c, 0x047c, 0x047f, 0x047f, 362 0x0578, 0x057f, 0x0600, 0x0602, 0x0605, 0x0607, 0x060a, 0x060e, 363 0x0612, 0x0614, 0x0c01, 0x0c02, 0x0c06, 0x0c1d, 0x0c3d, 0x0c3f, 364 0x0c48, 0x0c4b, 0x0c80, 0x0c80, 0x0c88, 0x0c8b, 0x0ca0, 0x0cb7, 365 0x0cc0, 0x0cc1, 0x0cc6, 0x0cc7, 0x0ce4, 0x0ce5, 0x0e00, 0x0e05, 366 0x0e0c, 0x0e0c, 0x0e22, 0x0e23, 0x0e41, 0x0e45, 0x0e64, 0x0e65, 367 0x0e80, 0x0e82, 0x0e84, 0x0e89, 0x0ea0, 0x0ea1, 0x0ea4, 0x0ea7, 368 0x0ec4, 0x0ecb, 0x0ee0, 0x0ee0, 0x0f00, 0x0f01, 0x0f03, 0x0f09, 369 0x2040, 0x2040, 0x2044, 0x2044, 0x2048, 0x204d, 0x2068, 0x2069, 370 0x206c, 0x206d, 0x2070, 0x2070, 0x2072, 0x2072, 0x2074, 0x2075, 371 0x2079, 0x207a, 0x20c0, 0x20d3, 0x20e4, 0x20ef, 0x2100, 0x2109, 372 0x210c, 0x210c, 0x210e, 0x210e, 0x2110, 0x2111, 0x2114, 0x2115, 373 0x21e4, 0x21e4, 0x21ea, 0x21ea, 0x21ec, 0x21ed, 0x21f0, 0x21f0, 374 0x2200, 0x2212, 0x2214, 0x2217, 0x221a, 0x221a, 0x2240, 0x227e, 375 0x2280, 0x228b, 0x22c0, 0x22c0, 0x22c4, 0x22ce, 0x22d0, 0x22d8, 376 0x22df, 0x22e6, 0x22e8, 0x22e9, 0x22ec, 0x22ec, 0x22f0, 0x22f7, 377 0x22ff, 0x22ff, 0x2340, 0x2343, 0x2348, 0x2349, 0x2350, 0x2356, 378 0x2360, 0x2360, 0x2440, 0x2440, 0x2444, 0x2444, 0x2448, 0x244d, 379 0x2468, 0x2469, 0x246c, 0x246d, 0x2470, 0x2470, 0x2472, 0x2472, 380 0x2474, 0x2475, 0x2479, 0x247a, 0x24c0, 0x24d3, 0x24e4, 0x24ef, 381 0x2500, 0x2509, 0x250c, 0x250c, 0x250e, 0x250e, 0x2510, 0x2511, 382 0x2514, 0x2515, 0x25e4, 0x25e4, 0x25ea, 0x25ea, 0x25ec, 0x25ed, 383 0x25f0, 0x25f0, 0x2600, 0x2612, 0x2614, 0x2617, 0x261a, 0x261a, 384 0x2640, 0x267e, 0x2680, 0x268b, 0x26c0, 0x26c0, 0x26c4, 0x26ce, 385 0x26d0, 0x26d8, 0x26df, 0x26e6, 0x26e8, 0x26e9, 0x26ec, 0x26ec, 386 0x26f0, 0x26f7, 0x26ff, 0x26ff, 0x2740, 0x2743, 0x2748, 0x2749, 387 0x2750, 0x2756, 0x2760, 0x2760, 0x300c, 0x300e, 0x301c, 0x301d, 388 0x302a, 0x302a, 0x302c, 0x302d, 0x3030, 0x3031, 0x3034, 0x3036, 389 0x303c, 0x303c, 0x305e, 0x305f, 390 }; 391 392 #ifdef CONFIG_DEBUG_FS 393 static void a3xx_show(struct msm_gpu *gpu, struct seq_file *m) 394 { 395 struct drm_device *dev = gpu->dev; 396 int i; 397 398 adreno_show(gpu, m); 399 400 mutex_lock(&dev->struct_mutex); 401 402 gpu->funcs->pm_resume(gpu); 403 404 seq_printf(m, "status: %08x\n", 405 gpu_read(gpu, REG_A3XX_RBBM_STATUS)); 406 407 /* dump these out in a form that can be parsed by demsm: */ 408 seq_printf(m, "IO:region %s 00000000 00020000\n", gpu->name); 409 for (i = 0; i < ARRAY_SIZE(a3xx_registers); i += 2) { 410 uint32_t start = a3xx_registers[i]; 411 uint32_t end = a3xx_registers[i+1]; 412 uint32_t addr; 413 414 for (addr = start; addr <= end; addr++) { 415 uint32_t val = gpu_read(gpu, addr); 416 seq_printf(m, "IO:R %08x %08x\n", addr<<2, val); 417 } 418 } 419 420 gpu->funcs->pm_suspend(gpu); 421 422 mutex_unlock(&dev->struct_mutex); 423 } 424 #endif 425 426 /* would be nice to not have to duplicate the _show() stuff with printk(): */ 427 static void a3xx_dump(struct msm_gpu *gpu) 428 { 429 int i; 430 431 adreno_dump(gpu); 432 printk("status: %08x\n", 433 gpu_read(gpu, REG_A3XX_RBBM_STATUS)); 434 435 /* dump these out in a form that can be parsed by demsm: */ 436 printk("IO:region %s 00000000 00020000\n", gpu->name); 437 for (i = 0; i < ARRAY_SIZE(a3xx_registers); i += 2) { 438 uint32_t start = a3xx_registers[i]; 439 uint32_t end = a3xx_registers[i+1]; 440 uint32_t addr; 441 442 for (addr = start; addr <= end; addr++) { 443 uint32_t val = gpu_read(gpu, addr); 444 printk("IO:R %08x %08x\n", addr<<2, val); 445 } 446 } 447 } 448 449 static const struct adreno_gpu_funcs funcs = { 450 .base = { 451 .get_param = adreno_get_param, 452 .hw_init = a3xx_hw_init, 453 .pm_suspend = msm_gpu_pm_suspend, 454 .pm_resume = msm_gpu_pm_resume, 455 .recover = a3xx_recover, 456 .last_fence = adreno_last_fence, 457 .submit = adreno_submit, 458 .flush = adreno_flush, 459 .idle = a3xx_idle, 460 .irq = a3xx_irq, 461 .destroy = a3xx_destroy, 462 #ifdef CONFIG_DEBUG_FS 463 .show = a3xx_show, 464 #endif 465 }, 466 }; 467 468 struct msm_gpu *a3xx_gpu_init(struct drm_device *dev) 469 { 470 struct a3xx_gpu *a3xx_gpu = NULL; 471 struct adreno_gpu *adreno_gpu; 472 struct msm_gpu *gpu; 473 struct msm_drm_private *priv = dev->dev_private; 474 struct platform_device *pdev = priv->gpu_pdev; 475 struct adreno_platform_config *config; 476 int ret; 477 478 if (!pdev) { 479 dev_err(dev->dev, "no a3xx device\n"); 480 ret = -ENXIO; 481 goto fail; 482 } 483 484 config = pdev->dev.platform_data; 485 486 a3xx_gpu = kzalloc(sizeof(*a3xx_gpu), GFP_KERNEL); 487 if (!a3xx_gpu) { 488 ret = -ENOMEM; 489 goto fail; 490 } 491 492 adreno_gpu = &a3xx_gpu->base; 493 gpu = &adreno_gpu->base; 494 495 a3xx_gpu->pdev = pdev; 496 497 gpu->fast_rate = config->fast_rate; 498 gpu->slow_rate = config->slow_rate; 499 gpu->bus_freq = config->bus_freq; 500 #ifdef CONFIG_MSM_BUS_SCALING 501 gpu->bus_scale_table = config->bus_scale_table; 502 #endif 503 504 DBG("fast_rate=%u, slow_rate=%u, bus_freq=%u", 505 gpu->fast_rate, gpu->slow_rate, gpu->bus_freq); 506 507 ret = adreno_gpu_init(dev, pdev, adreno_gpu, &funcs, config->rev); 508 if (ret) 509 goto fail; 510 511 /* if needed, allocate gmem: */ 512 if (adreno_is_a330(adreno_gpu)) { 513 #ifdef CONFIG_MSM_OCMEM 514 /* TODO this is different/missing upstream: */ 515 struct ocmem_buf *ocmem_hdl = 516 ocmem_allocate(OCMEM_GRAPHICS, adreno_gpu->gmem); 517 518 a3xx_gpu->ocmem_hdl = ocmem_hdl; 519 a3xx_gpu->ocmem_base = ocmem_hdl->addr; 520 adreno_gpu->gmem = ocmem_hdl->len; 521 DBG("using %dK of OCMEM at 0x%08x", adreno_gpu->gmem / 1024, 522 a3xx_gpu->ocmem_base); 523 #endif 524 } 525 526 if (!gpu->mmu) { 527 /* TODO we think it is possible to configure the GPU to 528 * restrict access to VRAM carveout. But the required 529 * registers are unknown. For now just bail out and 530 * limp along with just modesetting. If it turns out 531 * to not be possible to restrict access, then we must 532 * implement a cmdstream validator. 533 */ 534 dev_err(dev->dev, "No memory protection without IOMMU\n"); 535 ret = -ENXIO; 536 goto fail; 537 } 538 539 return gpu; 540 541 fail: 542 if (a3xx_gpu) 543 a3xx_destroy(&a3xx_gpu->base.base); 544 545 return ERR_PTR(ret); 546 } 547 548 /* 549 * The a3xx device: 550 */ 551 552 #if defined(CONFIG_MSM_BUS_SCALING) && !defined(CONFIG_OF) 553 # include <mach/kgsl.h> 554 #endif 555 556 static void set_gpu_pdev(struct drm_device *dev, 557 struct platform_device *pdev) 558 { 559 struct msm_drm_private *priv = dev->dev_private; 560 priv->gpu_pdev = pdev; 561 } 562 563 static int a3xx_bind(struct device *dev, struct device *master, void *data) 564 { 565 static struct adreno_platform_config config = {}; 566 #ifdef CONFIG_OF 567 struct device_node *child, *node = dev->of_node; 568 u32 val; 569 int ret; 570 571 ret = of_property_read_u32(node, "qcom,chipid", &val); 572 if (ret) { 573 dev_err(dev, "could not find chipid: %d\n", ret); 574 return ret; 575 } 576 577 config.rev = ADRENO_REV((val >> 24) & 0xff, 578 (val >> 16) & 0xff, (val >> 8) & 0xff, val & 0xff); 579 580 /* find clock rates: */ 581 config.fast_rate = 0; 582 config.slow_rate = ~0; 583 for_each_child_of_node(node, child) { 584 if (of_device_is_compatible(child, "qcom,gpu-pwrlevels")) { 585 struct device_node *pwrlvl; 586 for_each_child_of_node(child, pwrlvl) { 587 ret = of_property_read_u32(pwrlvl, "qcom,gpu-freq", &val); 588 if (ret) { 589 dev_err(dev, "could not find gpu-freq: %d\n", ret); 590 return ret; 591 } 592 config.fast_rate = max(config.fast_rate, val); 593 config.slow_rate = min(config.slow_rate, val); 594 } 595 } 596 } 597 598 if (!config.fast_rate) { 599 dev_err(dev, "could not find clk rates\n"); 600 return -ENXIO; 601 } 602 603 #else 604 struct kgsl_device_platform_data *pdata = dev->platform_data; 605 uint32_t version = socinfo_get_version(); 606 if (cpu_is_apq8064ab()) { 607 config.fast_rate = 450000000; 608 config.slow_rate = 27000000; 609 config.bus_freq = 4; 610 config.rev = ADRENO_REV(3, 2, 1, 0); 611 } else if (cpu_is_apq8064()) { 612 config.fast_rate = 400000000; 613 config.slow_rate = 27000000; 614 config.bus_freq = 4; 615 616 if (SOCINFO_VERSION_MAJOR(version) == 2) 617 config.rev = ADRENO_REV(3, 2, 0, 2); 618 else if ((SOCINFO_VERSION_MAJOR(version) == 1) && 619 (SOCINFO_VERSION_MINOR(version) == 1)) 620 config.rev = ADRENO_REV(3, 2, 0, 1); 621 else 622 config.rev = ADRENO_REV(3, 2, 0, 0); 623 624 } else if (cpu_is_msm8960ab()) { 625 config.fast_rate = 400000000; 626 config.slow_rate = 320000000; 627 config.bus_freq = 4; 628 629 if (SOCINFO_VERSION_MINOR(version) == 0) 630 config.rev = ADRENO_REV(3, 2, 1, 0); 631 else 632 config.rev = ADRENO_REV(3, 2, 1, 1); 633 634 } else if (cpu_is_msm8930()) { 635 config.fast_rate = 400000000; 636 config.slow_rate = 27000000; 637 config.bus_freq = 3; 638 639 if ((SOCINFO_VERSION_MAJOR(version) == 1) && 640 (SOCINFO_VERSION_MINOR(version) == 2)) 641 config.rev = ADRENO_REV(3, 0, 5, 2); 642 else 643 config.rev = ADRENO_REV(3, 0, 5, 0); 644 645 } 646 # ifdef CONFIG_MSM_BUS_SCALING 647 config.bus_scale_table = pdata->bus_scale_table; 648 # endif 649 #endif 650 dev->platform_data = &config; 651 set_gpu_pdev(dev_get_drvdata(master), to_platform_device(dev)); 652 return 0; 653 } 654 655 static void a3xx_unbind(struct device *dev, struct device *master, 656 void *data) 657 { 658 set_gpu_pdev(dev_get_drvdata(master), NULL); 659 } 660 661 static const struct component_ops a3xx_ops = { 662 .bind = a3xx_bind, 663 .unbind = a3xx_unbind, 664 }; 665 666 static int a3xx_probe(struct platform_device *pdev) 667 { 668 return component_add(&pdev->dev, &a3xx_ops); 669 } 670 671 static int a3xx_remove(struct platform_device *pdev) 672 { 673 component_del(&pdev->dev, &a3xx_ops); 674 return 0; 675 } 676 677 static const struct of_device_id dt_match[] = { 678 { .compatible = "qcom,kgsl-3d0" }, 679 {} 680 }; 681 682 static struct platform_driver a3xx_driver = { 683 .probe = a3xx_probe, 684 .remove = a3xx_remove, 685 .driver = { 686 .name = "kgsl-3d0", 687 .of_match_table = dt_match, 688 }, 689 }; 690 691 void __init a3xx_register(void) 692 { 693 platform_driver_register(&a3xx_driver); 694 } 695 696 void __exit a3xx_unregister(void) 697 { 698 platform_driver_unregister(&a3xx_driver); 699 } 700