1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (C) 2013 Red Hat
4 * Author: Rob Clark <robdclark@gmail.com>
5 *
6 * Copyright (c) 2014 The Linux Foundation. All rights reserved.
7 */
8
9 #include "a3xx_gpu.h"
10
11 #define A3XX_INT0_MASK \
12 (A3XX_INT0_RBBM_AHB_ERROR | \
13 A3XX_INT0_RBBM_ATB_BUS_OVERFLOW | \
14 A3XX_INT0_CP_T0_PACKET_IN_IB | \
15 A3XX_INT0_CP_OPCODE_ERROR | \
16 A3XX_INT0_CP_RESERVED_BIT_ERROR | \
17 A3XX_INT0_CP_HW_FAULT | \
18 A3XX_INT0_CP_IB1_INT | \
19 A3XX_INT0_CP_IB2_INT | \
20 A3XX_INT0_CP_RB_INT | \
21 A3XX_INT0_CP_REG_PROTECT_FAULT | \
22 A3XX_INT0_CP_AHB_ERROR_HALT | \
23 A3XX_INT0_CACHE_FLUSH_TS | \
24 A3XX_INT0_UCHE_OOB_ACCESS)
25
26 extern bool hang_debug;
27
28 static void a3xx_dump(struct msm_gpu *gpu);
29 static bool a3xx_idle(struct msm_gpu *gpu);
30
a3xx_submit(struct msm_gpu * gpu,struct msm_gem_submit * submit)31 static void a3xx_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit)
32 {
33 struct msm_ringbuffer *ring = submit->ring;
34 unsigned int i;
35
36 for (i = 0; i < submit->nr_cmds; i++) {
37 switch (submit->cmd[i].type) {
38 case MSM_SUBMIT_CMD_IB_TARGET_BUF:
39 /* ignore IB-targets */
40 break;
41 case MSM_SUBMIT_CMD_CTX_RESTORE_BUF:
42 /* ignore if there has not been a ctx switch: */
43 if (gpu->cur_ctx_seqno == submit->queue->ctx->seqno)
44 break;
45 fallthrough;
46 case MSM_SUBMIT_CMD_BUF:
47 OUT_PKT3(ring, CP_INDIRECT_BUFFER_PFD, 2);
48 OUT_RING(ring, lower_32_bits(submit->cmd[i].iova));
49 OUT_RING(ring, submit->cmd[i].size);
50 OUT_PKT2(ring);
51 break;
52 }
53 }
54
55 OUT_PKT0(ring, REG_AXXX_CP_SCRATCH_REG2, 1);
56 OUT_RING(ring, submit->seqno);
57
58 /* Flush HLSQ lazy updates to make sure there is nothing
59 * pending for indirect loads after the timestamp has
60 * passed:
61 */
62 OUT_PKT3(ring, CP_EVENT_WRITE, 1);
63 OUT_RING(ring, HLSQ_FLUSH);
64
65 /* wait for idle before cache flush/interrupt */
66 OUT_PKT3(ring, CP_WAIT_FOR_IDLE, 1);
67 OUT_RING(ring, 0x00000000);
68
69 /* BIT(31) of CACHE_FLUSH_TS triggers CACHE_FLUSH_TS IRQ from GPU */
70 OUT_PKT3(ring, CP_EVENT_WRITE, 3);
71 OUT_RING(ring, CACHE_FLUSH_TS | CP_EVENT_WRITE_0_IRQ);
72 OUT_RING(ring, rbmemptr(ring, fence));
73 OUT_RING(ring, submit->seqno);
74
75 #if 0
76 /* Dummy set-constant to trigger context rollover */
77 OUT_PKT3(ring, CP_SET_CONSTANT, 2);
78 OUT_RING(ring, CP_REG(REG_A3XX_HLSQ_CL_KERNEL_GROUP_X_REG));
79 OUT_RING(ring, 0x00000000);
80 #endif
81
82 adreno_flush(gpu, ring, REG_AXXX_CP_RB_WPTR);
83 }
84
a3xx_me_init(struct msm_gpu * gpu)85 static bool a3xx_me_init(struct msm_gpu *gpu)
86 {
87 struct msm_ringbuffer *ring = gpu->rb[0];
88
89 OUT_PKT3(ring, CP_ME_INIT, 17);
90 OUT_RING(ring, 0x000003f7);
91 OUT_RING(ring, 0x00000000);
92 OUT_RING(ring, 0x00000000);
93 OUT_RING(ring, 0x00000000);
94 OUT_RING(ring, 0x00000080);
95 OUT_RING(ring, 0x00000100);
96 OUT_RING(ring, 0x00000180);
97 OUT_RING(ring, 0x00006600);
98 OUT_RING(ring, 0x00000150);
99 OUT_RING(ring, 0x0000014e);
100 OUT_RING(ring, 0x00000154);
101 OUT_RING(ring, 0x00000001);
102 OUT_RING(ring, 0x00000000);
103 OUT_RING(ring, 0x00000000);
104 OUT_RING(ring, 0x00000000);
105 OUT_RING(ring, 0x00000000);
106 OUT_RING(ring, 0x00000000);
107
108 adreno_flush(gpu, ring, REG_AXXX_CP_RB_WPTR);
109 return a3xx_idle(gpu);
110 }
111
a3xx_hw_init(struct msm_gpu * gpu)112 static int a3xx_hw_init(struct msm_gpu *gpu)
113 {
114 struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
115 struct a3xx_gpu *a3xx_gpu = to_a3xx_gpu(adreno_gpu);
116 uint32_t *ptr, len;
117 int i, ret;
118
119 DBG("%s", gpu->name);
120
121 if (adreno_is_a305(adreno_gpu)) {
122 /* Set up 16 deep read/write request queues: */
123 gpu_write(gpu, REG_A3XX_VBIF_IN_RD_LIM_CONF0, 0x10101010);
124 gpu_write(gpu, REG_A3XX_VBIF_IN_RD_LIM_CONF1, 0x10101010);
125 gpu_write(gpu, REG_A3XX_VBIF_OUT_RD_LIM_CONF0, 0x10101010);
126 gpu_write(gpu, REG_A3XX_VBIF_OUT_WR_LIM_CONF0, 0x10101010);
127 gpu_write(gpu, REG_A3XX_VBIF_DDR_OUT_MAX_BURST, 0x0000303);
128 gpu_write(gpu, REG_A3XX_VBIF_IN_WR_LIM_CONF0, 0x10101010);
129 gpu_write(gpu, REG_A3XX_VBIF_IN_WR_LIM_CONF1, 0x10101010);
130 /* Enable WR-REQ: */
131 gpu_write(gpu, REG_A3XX_VBIF_GATE_OFF_WRREQ_EN, 0x0000ff);
132 /* Set up round robin arbitration between both AXI ports: */
133 gpu_write(gpu, REG_A3XX_VBIF_ARB_CTL, 0x00000030);
134 /* Set up AOOO: */
135 gpu_write(gpu, REG_A3XX_VBIF_OUT_AXI_AOOO_EN, 0x0000003c);
136 gpu_write(gpu, REG_A3XX_VBIF_OUT_AXI_AOOO, 0x003c003c);
137 } else if (adreno_is_a306(adreno_gpu)) {
138 gpu_write(gpu, REG_A3XX_VBIF_ROUND_ROBIN_QOS_ARB, 0x0003);
139 gpu_write(gpu, REG_A3XX_VBIF_OUT_RD_LIM_CONF0, 0x0000000a);
140 gpu_write(gpu, REG_A3XX_VBIF_OUT_WR_LIM_CONF0, 0x0000000a);
141 } else if (adreno_is_a320(adreno_gpu)) {
142 /* Set up 16 deep read/write request queues: */
143 gpu_write(gpu, REG_A3XX_VBIF_IN_RD_LIM_CONF0, 0x10101010);
144 gpu_write(gpu, REG_A3XX_VBIF_IN_RD_LIM_CONF1, 0x10101010);
145 gpu_write(gpu, REG_A3XX_VBIF_OUT_RD_LIM_CONF0, 0x10101010);
146 gpu_write(gpu, REG_A3XX_VBIF_OUT_WR_LIM_CONF0, 0x10101010);
147 gpu_write(gpu, REG_A3XX_VBIF_DDR_OUT_MAX_BURST, 0x0000303);
148 gpu_write(gpu, REG_A3XX_VBIF_IN_WR_LIM_CONF0, 0x10101010);
149 gpu_write(gpu, REG_A3XX_VBIF_IN_WR_LIM_CONF1, 0x10101010);
150 /* Enable WR-REQ: */
151 gpu_write(gpu, REG_A3XX_VBIF_GATE_OFF_WRREQ_EN, 0x0000ff);
152 /* Set up round robin arbitration between both AXI ports: */
153 gpu_write(gpu, REG_A3XX_VBIF_ARB_CTL, 0x00000030);
154 /* Set up AOOO: */
155 gpu_write(gpu, REG_A3XX_VBIF_OUT_AXI_AOOO_EN, 0x0000003c);
156 gpu_write(gpu, REG_A3XX_VBIF_OUT_AXI_AOOO, 0x003c003c);
157 /* Enable 1K sort: */
158 gpu_write(gpu, REG_A3XX_VBIF_ABIT_SORT, 0x000000ff);
159 gpu_write(gpu, REG_A3XX_VBIF_ABIT_SORT_CONF, 0x000000a4);
160
161 } else if (adreno_is_a330v2(adreno_gpu)) {
162 /*
163 * Most of the VBIF registers on 8974v2 have the correct
164 * values at power on, so we won't modify those if we don't
165 * need to
166 */
167 /* Enable 1k sort: */
168 gpu_write(gpu, REG_A3XX_VBIF_ABIT_SORT, 0x0001003f);
169 gpu_write(gpu, REG_A3XX_VBIF_ABIT_SORT_CONF, 0x000000a4);
170 /* Enable WR-REQ: */
171 gpu_write(gpu, REG_A3XX_VBIF_GATE_OFF_WRREQ_EN, 0x00003f);
172 gpu_write(gpu, REG_A3XX_VBIF_DDR_OUT_MAX_BURST, 0x0000303);
173 /* Set up VBIF_ROUND_ROBIN_QOS_ARB: */
174 gpu_write(gpu, REG_A3XX_VBIF_ROUND_ROBIN_QOS_ARB, 0x0003);
175
176 } else if (adreno_is_a330(adreno_gpu)) {
177 /* Set up 16 deep read/write request queues: */
178 gpu_write(gpu, REG_A3XX_VBIF_IN_RD_LIM_CONF0, 0x18181818);
179 gpu_write(gpu, REG_A3XX_VBIF_IN_RD_LIM_CONF1, 0x18181818);
180 gpu_write(gpu, REG_A3XX_VBIF_OUT_RD_LIM_CONF0, 0x18181818);
181 gpu_write(gpu, REG_A3XX_VBIF_OUT_WR_LIM_CONF0, 0x18181818);
182 gpu_write(gpu, REG_A3XX_VBIF_DDR_OUT_MAX_BURST, 0x0000303);
183 gpu_write(gpu, REG_A3XX_VBIF_IN_WR_LIM_CONF0, 0x18181818);
184 gpu_write(gpu, REG_A3XX_VBIF_IN_WR_LIM_CONF1, 0x18181818);
185 /* Enable WR-REQ: */
186 gpu_write(gpu, REG_A3XX_VBIF_GATE_OFF_WRREQ_EN, 0x00003f);
187 /* Set up round robin arbitration between both AXI ports: */
188 gpu_write(gpu, REG_A3XX_VBIF_ARB_CTL, 0x00000030);
189 /* Set up VBIF_ROUND_ROBIN_QOS_ARB: */
190 gpu_write(gpu, REG_A3XX_VBIF_ROUND_ROBIN_QOS_ARB, 0x0001);
191 /* Set up AOOO: */
192 gpu_write(gpu, REG_A3XX_VBIF_OUT_AXI_AOOO_EN, 0x0000003f);
193 gpu_write(gpu, REG_A3XX_VBIF_OUT_AXI_AOOO, 0x003f003f);
194 /* Enable 1K sort: */
195 gpu_write(gpu, REG_A3XX_VBIF_ABIT_SORT, 0x0001003f);
196 gpu_write(gpu, REG_A3XX_VBIF_ABIT_SORT_CONF, 0x000000a4);
197 /* Disable VBIF clock gating. This is to enable AXI running
198 * higher frequency than GPU:
199 */
200 gpu_write(gpu, REG_A3XX_VBIF_CLKON, 0x00000001);
201
202 } else {
203 BUG();
204 }
205
206 /* Make all blocks contribute to the GPU BUSY perf counter: */
207 gpu_write(gpu, REG_A3XX_RBBM_GPU_BUSY_MASKED, 0xffffffff);
208
209 /* Tune the hystersis counters for SP and CP idle detection: */
210 gpu_write(gpu, REG_A3XX_RBBM_SP_HYST_CNT, 0x10);
211 gpu_write(gpu, REG_A3XX_RBBM_WAIT_IDLE_CLOCKS_CTL, 0x10);
212
213 /* Enable the RBBM error reporting bits. This lets us get
214 * useful information on failure:
215 */
216 gpu_write(gpu, REG_A3XX_RBBM_AHB_CTL0, 0x00000001);
217
218 /* Enable AHB error reporting: */
219 gpu_write(gpu, REG_A3XX_RBBM_AHB_CTL1, 0xa6ffffff);
220
221 /* Turn on the power counters: */
222 gpu_write(gpu, REG_A3XX_RBBM_RBBM_CTL, 0x00030000);
223
224 /* Turn on hang detection - this spews a lot of useful information
225 * into the RBBM registers on a hang:
226 */
227 gpu_write(gpu, REG_A3XX_RBBM_INTERFACE_HANG_INT_CTL, 0x00010fff);
228
229 /* Enable 64-byte cacheline size. HW Default is 32-byte (0x000000E0): */
230 gpu_write(gpu, REG_A3XX_UCHE_CACHE_MODE_CONTROL_REG, 0x00000001);
231
232 /* Enable Clock gating: */
233 if (adreno_is_a306(adreno_gpu))
234 gpu_write(gpu, REG_A3XX_RBBM_CLOCK_CTL, 0xaaaaaaaa);
235 else if (adreno_is_a320(adreno_gpu))
236 gpu_write(gpu, REG_A3XX_RBBM_CLOCK_CTL, 0xbfffffff);
237 else if (adreno_is_a330v2(adreno_gpu))
238 gpu_write(gpu, REG_A3XX_RBBM_CLOCK_CTL, 0xaaaaaaaa);
239 else if (adreno_is_a330(adreno_gpu))
240 gpu_write(gpu, REG_A3XX_RBBM_CLOCK_CTL, 0xbffcffff);
241
242 if (adreno_is_a330v2(adreno_gpu))
243 gpu_write(gpu, REG_A3XX_RBBM_GPR0_CTL, 0x05515455);
244 else if (adreno_is_a330(adreno_gpu))
245 gpu_write(gpu, REG_A3XX_RBBM_GPR0_CTL, 0x00000000);
246
247 /* Set the OCMEM base address for A330, etc */
248 if (a3xx_gpu->ocmem.hdl) {
249 gpu_write(gpu, REG_A3XX_RB_GMEM_BASE_ADDR,
250 (unsigned int)(a3xx_gpu->ocmem.base >> 14));
251 }
252
253 /* Turn on performance counters: */
254 gpu_write(gpu, REG_A3XX_RBBM_PERFCTR_CTL, 0x01);
255
256 /* Enable the perfcntrs that we use.. */
257 for (i = 0; i < gpu->num_perfcntrs; i++) {
258 const struct msm_gpu_perfcntr *perfcntr = &gpu->perfcntrs[i];
259 gpu_write(gpu, perfcntr->select_reg, perfcntr->select_val);
260 }
261
262 gpu_write(gpu, REG_A3XX_RBBM_INT_0_MASK, A3XX_INT0_MASK);
263
264 ret = adreno_hw_init(gpu);
265 if (ret)
266 return ret;
267
268 /*
269 * Use the default ringbuffer size and block size but disable the RPTR
270 * shadow
271 */
272 gpu_write(gpu, REG_AXXX_CP_RB_CNTL,
273 MSM_GPU_RB_CNTL_DEFAULT | AXXX_CP_RB_CNTL_NO_UPDATE);
274
275 /* Set the ringbuffer address */
276 gpu_write(gpu, REG_AXXX_CP_RB_BASE, lower_32_bits(gpu->rb[0]->iova));
277
278 /* setup access protection: */
279 gpu_write(gpu, REG_A3XX_CP_PROTECT_CTRL, 0x00000007);
280
281 /* RBBM registers */
282 gpu_write(gpu, REG_A3XX_CP_PROTECT(0), 0x63000040);
283 gpu_write(gpu, REG_A3XX_CP_PROTECT(1), 0x62000080);
284 gpu_write(gpu, REG_A3XX_CP_PROTECT(2), 0x600000cc);
285 gpu_write(gpu, REG_A3XX_CP_PROTECT(3), 0x60000108);
286 gpu_write(gpu, REG_A3XX_CP_PROTECT(4), 0x64000140);
287 gpu_write(gpu, REG_A3XX_CP_PROTECT(5), 0x66000400);
288
289 /* CP registers */
290 gpu_write(gpu, REG_A3XX_CP_PROTECT(6), 0x65000700);
291 gpu_write(gpu, REG_A3XX_CP_PROTECT(7), 0x610007d8);
292 gpu_write(gpu, REG_A3XX_CP_PROTECT(8), 0x620007e0);
293 gpu_write(gpu, REG_A3XX_CP_PROTECT(9), 0x61001178);
294 gpu_write(gpu, REG_A3XX_CP_PROTECT(10), 0x64001180);
295
296 /* RB registers */
297 gpu_write(gpu, REG_A3XX_CP_PROTECT(11), 0x60003300);
298
299 /* VBIF registers */
300 gpu_write(gpu, REG_A3XX_CP_PROTECT(12), 0x6b00c000);
301
302 /* NOTE: PM4/micro-engine firmware registers look to be the same
303 * for a2xx and a3xx.. we could possibly push that part down to
304 * adreno_gpu base class. Or push both PM4 and PFP but
305 * parameterize the pfp ucode addr/data registers..
306 */
307
308 /* Load PM4: */
309 ptr = (uint32_t *)(adreno_gpu->fw[ADRENO_FW_PM4]->data);
310 len = adreno_gpu->fw[ADRENO_FW_PM4]->size / 4;
311 DBG("loading PM4 ucode version: %x", ptr[1]);
312
313 gpu_write(gpu, REG_AXXX_CP_DEBUG,
314 AXXX_CP_DEBUG_DYNAMIC_CLK_DISABLE |
315 AXXX_CP_DEBUG_MIU_128BIT_WRITE_ENABLE);
316 gpu_write(gpu, REG_AXXX_CP_ME_RAM_WADDR, 0);
317 for (i = 1; i < len; i++)
318 gpu_write(gpu, REG_AXXX_CP_ME_RAM_DATA, ptr[i]);
319
320 /* Load PFP: */
321 ptr = (uint32_t *)(adreno_gpu->fw[ADRENO_FW_PFP]->data);
322 len = adreno_gpu->fw[ADRENO_FW_PFP]->size / 4;
323 DBG("loading PFP ucode version: %x", ptr[5]);
324
325 gpu_write(gpu, REG_A3XX_CP_PFP_UCODE_ADDR, 0);
326 for (i = 1; i < len; i++)
327 gpu_write(gpu, REG_A3XX_CP_PFP_UCODE_DATA, ptr[i]);
328
329 /* CP ROQ queue sizes (bytes) - RB:16, ST:16, IB1:32, IB2:64 */
330 if (adreno_is_a305(adreno_gpu) || adreno_is_a306(adreno_gpu) ||
331 adreno_is_a320(adreno_gpu)) {
332 gpu_write(gpu, REG_AXXX_CP_QUEUE_THRESHOLDS,
333 AXXX_CP_QUEUE_THRESHOLDS_CSQ_IB1_START(2) |
334 AXXX_CP_QUEUE_THRESHOLDS_CSQ_IB2_START(6) |
335 AXXX_CP_QUEUE_THRESHOLDS_CSQ_ST_START(14));
336 } else if (adreno_is_a330(adreno_gpu)) {
337 /* NOTE: this (value take from downstream android driver)
338 * includes some bits outside of the known bitfields. But
339 * A330 has this "MERCIU queue" thing too, which might
340 * explain a new bitfield or reshuffling:
341 */
342 gpu_write(gpu, REG_AXXX_CP_QUEUE_THRESHOLDS, 0x003e2008);
343 }
344
345 /* clear ME_HALT to start micro engine */
346 gpu_write(gpu, REG_AXXX_CP_ME_CNTL, 0);
347
348 return a3xx_me_init(gpu) ? 0 : -EINVAL;
349 }
350
a3xx_recover(struct msm_gpu * gpu)351 static void a3xx_recover(struct msm_gpu *gpu)
352 {
353 int i;
354
355 adreno_dump_info(gpu);
356
357 for (i = 0; i < 8; i++) {
358 printk("CP_SCRATCH_REG%d: %u\n", i,
359 gpu_read(gpu, REG_AXXX_CP_SCRATCH_REG0 + i));
360 }
361
362 /* dump registers before resetting gpu, if enabled: */
363 if (hang_debug)
364 a3xx_dump(gpu);
365
366 gpu_write(gpu, REG_A3XX_RBBM_SW_RESET_CMD, 1);
367 gpu_read(gpu, REG_A3XX_RBBM_SW_RESET_CMD);
368 gpu_write(gpu, REG_A3XX_RBBM_SW_RESET_CMD, 0);
369 adreno_recover(gpu);
370 }
371
a3xx_destroy(struct msm_gpu * gpu)372 static void a3xx_destroy(struct msm_gpu *gpu)
373 {
374 struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
375 struct a3xx_gpu *a3xx_gpu = to_a3xx_gpu(adreno_gpu);
376
377 DBG("%s", gpu->name);
378
379 adreno_gpu_cleanup(adreno_gpu);
380
381 adreno_gpu_ocmem_cleanup(&a3xx_gpu->ocmem);
382
383 kfree(a3xx_gpu);
384 }
385
a3xx_idle(struct msm_gpu * gpu)386 static bool a3xx_idle(struct msm_gpu *gpu)
387 {
388 /* wait for ringbuffer to drain: */
389 if (!adreno_idle(gpu, gpu->rb[0]))
390 return false;
391
392 /* then wait for GPU to finish: */
393 if (spin_until(!(gpu_read(gpu, REG_A3XX_RBBM_STATUS) &
394 A3XX_RBBM_STATUS_GPU_BUSY))) {
395 DRM_ERROR("%s: timeout waiting for GPU to idle!\n", gpu->name);
396
397 /* TODO maybe we need to reset GPU here to recover from hang? */
398 return false;
399 }
400
401 return true;
402 }
403
a3xx_irq(struct msm_gpu * gpu)404 static irqreturn_t a3xx_irq(struct msm_gpu *gpu)
405 {
406 uint32_t status;
407
408 status = gpu_read(gpu, REG_A3XX_RBBM_INT_0_STATUS);
409 DBG("%s: %08x", gpu->name, status);
410
411 // TODO
412
413 gpu_write(gpu, REG_A3XX_RBBM_INT_CLEAR_CMD, status);
414
415 msm_gpu_retire(gpu);
416
417 return IRQ_HANDLED;
418 }
419
420 static const unsigned int a3xx_registers[] = {
421 0x0000, 0x0002, 0x0010, 0x0012, 0x0018, 0x0018, 0x0020, 0x0027,
422 0x0029, 0x002b, 0x002e, 0x0033, 0x0040, 0x0042, 0x0050, 0x005c,
423 0x0060, 0x006c, 0x0080, 0x0082, 0x0084, 0x0088, 0x0090, 0x00e5,
424 0x00ea, 0x00ed, 0x0100, 0x0100, 0x0110, 0x0123, 0x01c0, 0x01c1,
425 0x01c3, 0x01c5, 0x01c7, 0x01c7, 0x01d5, 0x01d9, 0x01dc, 0x01dd,
426 0x01ea, 0x01ea, 0x01ee, 0x01f1, 0x01f5, 0x01f5, 0x01fc, 0x01ff,
427 0x0440, 0x0440, 0x0443, 0x0443, 0x0445, 0x0445, 0x044d, 0x044f,
428 0x0452, 0x0452, 0x0454, 0x046f, 0x047c, 0x047c, 0x047f, 0x047f,
429 0x0578, 0x057f, 0x0600, 0x0602, 0x0605, 0x0607, 0x060a, 0x060e,
430 0x0612, 0x0614, 0x0c01, 0x0c02, 0x0c06, 0x0c1d, 0x0c3d, 0x0c3f,
431 0x0c48, 0x0c4b, 0x0c80, 0x0c80, 0x0c88, 0x0c8b, 0x0ca0, 0x0cb7,
432 0x0cc0, 0x0cc1, 0x0cc6, 0x0cc7, 0x0ce4, 0x0ce5, 0x0e00, 0x0e05,
433 0x0e0c, 0x0e0c, 0x0e22, 0x0e23, 0x0e41, 0x0e45, 0x0e64, 0x0e65,
434 0x0e80, 0x0e82, 0x0e84, 0x0e89, 0x0ea0, 0x0ea1, 0x0ea4, 0x0ea7,
435 0x0ec4, 0x0ecb, 0x0ee0, 0x0ee0, 0x0f00, 0x0f01, 0x0f03, 0x0f09,
436 0x2040, 0x2040, 0x2044, 0x2044, 0x2048, 0x204d, 0x2068, 0x2069,
437 0x206c, 0x206d, 0x2070, 0x2070, 0x2072, 0x2072, 0x2074, 0x2075,
438 0x2079, 0x207a, 0x20c0, 0x20d3, 0x20e4, 0x20ef, 0x2100, 0x2109,
439 0x210c, 0x210c, 0x210e, 0x210e, 0x2110, 0x2111, 0x2114, 0x2115,
440 0x21e4, 0x21e4, 0x21ea, 0x21ea, 0x21ec, 0x21ed, 0x21f0, 0x21f0,
441 0x2200, 0x2212, 0x2214, 0x2217, 0x221a, 0x221a, 0x2240, 0x227e,
442 0x2280, 0x228b, 0x22c0, 0x22c0, 0x22c4, 0x22ce, 0x22d0, 0x22d8,
443 0x22df, 0x22e6, 0x22e8, 0x22e9, 0x22ec, 0x22ec, 0x22f0, 0x22f7,
444 0x22ff, 0x22ff, 0x2340, 0x2343, 0x2440, 0x2440, 0x2444, 0x2444,
445 0x2448, 0x244d, 0x2468, 0x2469, 0x246c, 0x246d, 0x2470, 0x2470,
446 0x2472, 0x2472, 0x2474, 0x2475, 0x2479, 0x247a, 0x24c0, 0x24d3,
447 0x24e4, 0x24ef, 0x2500, 0x2509, 0x250c, 0x250c, 0x250e, 0x250e,
448 0x2510, 0x2511, 0x2514, 0x2515, 0x25e4, 0x25e4, 0x25ea, 0x25ea,
449 0x25ec, 0x25ed, 0x25f0, 0x25f0, 0x2600, 0x2612, 0x2614, 0x2617,
450 0x261a, 0x261a, 0x2640, 0x267e, 0x2680, 0x268b, 0x26c0, 0x26c0,
451 0x26c4, 0x26ce, 0x26d0, 0x26d8, 0x26df, 0x26e6, 0x26e8, 0x26e9,
452 0x26ec, 0x26ec, 0x26f0, 0x26f7, 0x26ff, 0x26ff, 0x2740, 0x2743,
453 0x300c, 0x300e, 0x301c, 0x301d, 0x302a, 0x302a, 0x302c, 0x302d,
454 0x3030, 0x3031, 0x3034, 0x3036, 0x303c, 0x303c, 0x305e, 0x305f,
455 ~0 /* sentinel */
456 };
457
458 /* would be nice to not have to duplicate the _show() stuff with printk(): */
a3xx_dump(struct msm_gpu * gpu)459 static void a3xx_dump(struct msm_gpu *gpu)
460 {
461 printk("status: %08x\n",
462 gpu_read(gpu, REG_A3XX_RBBM_STATUS));
463 adreno_dump(gpu);
464 }
465
a3xx_gpu_state_get(struct msm_gpu * gpu)466 static struct msm_gpu_state *a3xx_gpu_state_get(struct msm_gpu *gpu)
467 {
468 struct msm_gpu_state *state = kzalloc(sizeof(*state), GFP_KERNEL);
469
470 if (!state)
471 return ERR_PTR(-ENOMEM);
472
473 adreno_gpu_state_get(gpu, state);
474
475 state->rbbm_status = gpu_read(gpu, REG_A3XX_RBBM_STATUS);
476
477 return state;
478 }
479
a3xx_gpu_busy(struct msm_gpu * gpu,unsigned long * out_sample_rate)480 static u64 a3xx_gpu_busy(struct msm_gpu *gpu, unsigned long *out_sample_rate)
481 {
482 u64 busy_cycles;
483
484 busy_cycles = gpu_read64(gpu, REG_A3XX_RBBM_PERFCTR_RBBM_1_LO);
485 *out_sample_rate = clk_get_rate(gpu->core_clk);
486
487 return busy_cycles;
488 }
489
a3xx_get_rptr(struct msm_gpu * gpu,struct msm_ringbuffer * ring)490 static u32 a3xx_get_rptr(struct msm_gpu *gpu, struct msm_ringbuffer *ring)
491 {
492 ring->memptrs->rptr = gpu_read(gpu, REG_AXXX_CP_RB_RPTR);
493 return ring->memptrs->rptr;
494 }
495
496 static const struct adreno_gpu_funcs funcs = {
497 .base = {
498 .get_param = adreno_get_param,
499 .set_param = adreno_set_param,
500 .hw_init = a3xx_hw_init,
501 .pm_suspend = msm_gpu_pm_suspend,
502 .pm_resume = msm_gpu_pm_resume,
503 .recover = a3xx_recover,
504 .submit = a3xx_submit,
505 .active_ring = adreno_active_ring,
506 .irq = a3xx_irq,
507 .destroy = a3xx_destroy,
508 #if defined(CONFIG_DEBUG_FS) || defined(CONFIG_DEV_COREDUMP)
509 .show = adreno_show,
510 #endif
511 .gpu_busy = a3xx_gpu_busy,
512 .gpu_state_get = a3xx_gpu_state_get,
513 .gpu_state_put = adreno_gpu_state_put,
514 .create_address_space = adreno_create_address_space,
515 .get_rptr = a3xx_get_rptr,
516 },
517 };
518
519 static const struct msm_gpu_perfcntr perfcntrs[] = {
520 { REG_A3XX_SP_PERFCOUNTER6_SELECT, REG_A3XX_RBBM_PERFCTR_SP_6_LO,
521 SP_ALU_ACTIVE_CYCLES, "ALUACTIVE" },
522 { REG_A3XX_SP_PERFCOUNTER7_SELECT, REG_A3XX_RBBM_PERFCTR_SP_7_LO,
523 SP_FS_FULL_ALU_INSTRUCTIONS, "ALUFULL" },
524 };
525
a3xx_gpu_init(struct drm_device * dev)526 struct msm_gpu *a3xx_gpu_init(struct drm_device *dev)
527 {
528 struct a3xx_gpu *a3xx_gpu = NULL;
529 struct adreno_gpu *adreno_gpu;
530 struct msm_gpu *gpu;
531 struct msm_drm_private *priv = dev->dev_private;
532 struct platform_device *pdev = priv->gpu_pdev;
533 struct icc_path *ocmem_icc_path;
534 struct icc_path *icc_path;
535 int ret;
536
537 if (!pdev) {
538 DRM_DEV_ERROR(dev->dev, "no a3xx device\n");
539 ret = -ENXIO;
540 goto fail;
541 }
542
543 a3xx_gpu = kzalloc(sizeof(*a3xx_gpu), GFP_KERNEL);
544 if (!a3xx_gpu) {
545 ret = -ENOMEM;
546 goto fail;
547 }
548
549 adreno_gpu = &a3xx_gpu->base;
550 gpu = &adreno_gpu->base;
551
552 gpu->perfcntrs = perfcntrs;
553 gpu->num_perfcntrs = ARRAY_SIZE(perfcntrs);
554
555 adreno_gpu->registers = a3xx_registers;
556
557 ret = adreno_gpu_init(dev, pdev, adreno_gpu, &funcs, 1);
558 if (ret)
559 goto fail;
560
561 /* if needed, allocate gmem: */
562 if (adreno_is_a330(adreno_gpu)) {
563 ret = adreno_gpu_ocmem_init(&adreno_gpu->base.pdev->dev,
564 adreno_gpu, &a3xx_gpu->ocmem);
565 if (ret)
566 goto fail;
567 }
568
569 if (!gpu->aspace) {
570 /* TODO we think it is possible to configure the GPU to
571 * restrict access to VRAM carveout. But the required
572 * registers are unknown. For now just bail out and
573 * limp along with just modesetting. If it turns out
574 * to not be possible to restrict access, then we must
575 * implement a cmdstream validator.
576 */
577 DRM_DEV_ERROR(dev->dev, "No memory protection without IOMMU\n");
578 if (!allow_vram_carveout) {
579 ret = -ENXIO;
580 goto fail;
581 }
582 }
583
584 icc_path = devm_of_icc_get(&pdev->dev, "gfx-mem");
585 if (IS_ERR(icc_path)) {
586 ret = PTR_ERR(icc_path);
587 goto fail;
588 }
589
590 ocmem_icc_path = devm_of_icc_get(&pdev->dev, "ocmem");
591 if (IS_ERR(ocmem_icc_path)) {
592 ret = PTR_ERR(ocmem_icc_path);
593 /* allow -ENODATA, ocmem icc is optional */
594 if (ret != -ENODATA)
595 goto fail;
596 ocmem_icc_path = NULL;
597 }
598
599
600 /*
601 * Set the ICC path to maximum speed for now by multiplying the fastest
602 * frequency by the bus width (8). We'll want to scale this later on to
603 * improve battery life.
604 */
605 icc_set_bw(icc_path, 0, Bps_to_icc(gpu->fast_rate) * 8);
606 icc_set_bw(ocmem_icc_path, 0, Bps_to_icc(gpu->fast_rate) * 8);
607
608 return gpu;
609
610 fail:
611 if (a3xx_gpu)
612 a3xx_destroy(&a3xx_gpu->base.base);
613
614 return ERR_PTR(ret);
615 }
616