Loading...
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 * Christian König
28 */
29#include <linux/seq_file.h>
30#include <linux/slab.h>
31
32#include <drm/amdgpu_drm.h>
33
34#include "amdgpu.h"
35#include "atom.h"
36#include "amdgpu_trace.h"
37
38#define AMDGPU_IB_TEST_TIMEOUT msecs_to_jiffies(1000)
39#define AMDGPU_IB_TEST_GFX_XGMI_TIMEOUT msecs_to_jiffies(2000)
40
41/*
42 * IB
43 * IBs (Indirect Buffers) and areas of GPU accessible memory where
44 * commands are stored. You can put a pointer to the IB in the
45 * command ring and the hw will fetch the commands from the IB
46 * and execute them. Generally userspace acceleration drivers
47 * produce command buffers which are send to the kernel and
48 * put in IBs for execution by the requested ring.
49 */
50
51/**
52 * amdgpu_ib_get - request an IB (Indirect Buffer)
53 *
54 * @adev: amdgpu_device pointer
55 * @vm: amdgpu_vm pointer
56 * @size: requested IB size
57 * @pool_type: IB pool type (delayed, immediate, direct)
58 * @ib: IB object returned
59 *
60 * Request an IB (all asics). IBs are allocated using the
61 * suballocator.
62 * Returns 0 on success, error on failure.
63 */
64int amdgpu_ib_get(struct amdgpu_device *adev, struct amdgpu_vm *vm,
65 unsigned size, enum amdgpu_ib_pool_type pool_type,
66 struct amdgpu_ib *ib)
67{
68 int r;
69
70 if (size) {
71 r = amdgpu_sa_bo_new(&adev->ib_pools[pool_type],
72 &ib->sa_bo, size, 256);
73 if (r) {
74 dev_err(adev->dev, "failed to get a new IB (%d)\n", r);
75 return r;
76 }
77
78 ib->ptr = amdgpu_sa_bo_cpu_addr(ib->sa_bo);
79 /* flush the cache before commit the IB */
80 ib->flags = AMDGPU_IB_FLAG_EMIT_MEM_SYNC;
81
82 if (!vm)
83 ib->gpu_addr = amdgpu_sa_bo_gpu_addr(ib->sa_bo);
84 }
85
86 return 0;
87}
88
89/**
90 * amdgpu_ib_free - free an IB (Indirect Buffer)
91 *
92 * @adev: amdgpu_device pointer
93 * @ib: IB object to free
94 * @f: the fence SA bo need wait on for the ib alloation
95 *
96 * Free an IB (all asics).
97 */
98void amdgpu_ib_free(struct amdgpu_device *adev, struct amdgpu_ib *ib,
99 struct dma_fence *f)
100{
101 amdgpu_sa_bo_free(adev, &ib->sa_bo, f);
102}
103
104/**
105 * amdgpu_ib_schedule - schedule an IB (Indirect Buffer) on the ring
106 *
107 * @ring: ring index the IB is associated with
108 * @num_ibs: number of IBs to schedule
109 * @ibs: IB objects to schedule
110 * @job: job to schedule
111 * @f: fence created during this submission
112 *
113 * Schedule an IB on the associated ring (all asics).
114 * Returns 0 on success, error on failure.
115 *
116 * On SI, there are two parallel engines fed from the primary ring,
117 * the CE (Constant Engine) and the DE (Drawing Engine). Since
118 * resource descriptors have moved to memory, the CE allows you to
119 * prime the caches while the DE is updating register state so that
120 * the resource descriptors will be already in cache when the draw is
121 * processed. To accomplish this, the userspace driver submits two
122 * IBs, one for the CE and one for the DE. If there is a CE IB (called
123 * a CONST_IB), it will be put on the ring prior to the DE IB. Prior
124 * to SI there was just a DE IB.
125 */
126int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs,
127 struct amdgpu_ib *ibs, struct amdgpu_job *job,
128 struct dma_fence **f)
129{
130 struct amdgpu_device *adev = ring->adev;
131 struct amdgpu_ib *ib = &ibs[0];
132 struct dma_fence *tmp = NULL;
133 bool need_ctx_switch;
134 unsigned patch_offset = ~0;
135 struct amdgpu_vm *vm;
136 uint64_t fence_ctx;
137 uint32_t status = 0, alloc_size;
138 unsigned fence_flags = 0;
139 bool secure;
140
141 unsigned i;
142 int r = 0;
143 bool need_pipe_sync = false;
144
145 if (num_ibs == 0)
146 return -EINVAL;
147
148 /* ring tests don't use a job */
149 if (job) {
150 vm = job->vm;
151 fence_ctx = job->base.s_fence ?
152 job->base.s_fence->scheduled.context : 0;
153 } else {
154 vm = NULL;
155 fence_ctx = 0;
156 }
157
158 if (!ring->sched.ready) {
159 dev_err(adev->dev, "couldn't schedule ib on ring <%s>\n", ring->name);
160 return -EINVAL;
161 }
162
163 if (vm && !job->vmid) {
164 dev_err(adev->dev, "VM IB without ID\n");
165 return -EINVAL;
166 }
167
168 if ((ib->flags & AMDGPU_IB_FLAGS_SECURE) &&
169 (ring->funcs->type == AMDGPU_RING_TYPE_COMPUTE)) {
170 dev_err(adev->dev, "secure submissions not supported on compute rings\n");
171 return -EINVAL;
172 }
173
174 alloc_size = ring->funcs->emit_frame_size + num_ibs *
175 ring->funcs->emit_ib_size;
176
177 r = amdgpu_ring_alloc(ring, alloc_size);
178 if (r) {
179 dev_err(adev->dev, "scheduling IB failed (%d).\n", r);
180 return r;
181 }
182
183 need_ctx_switch = ring->current_ctx != fence_ctx;
184 if (ring->funcs->emit_pipeline_sync && job &&
185 ((tmp = amdgpu_sync_get_fence(&job->sched_sync)) ||
186 (amdgpu_sriov_vf(adev) && need_ctx_switch) ||
187 amdgpu_vm_need_pipeline_sync(ring, job))) {
188 need_pipe_sync = true;
189
190 if (tmp)
191 trace_amdgpu_ib_pipe_sync(job, tmp);
192
193 dma_fence_put(tmp);
194 }
195
196 if ((ib->flags & AMDGPU_IB_FLAG_EMIT_MEM_SYNC) && ring->funcs->emit_mem_sync)
197 ring->funcs->emit_mem_sync(ring);
198
199 if (ring->funcs->emit_wave_limit &&
200 ring->hw_prio == AMDGPU_GFX_PIPE_PRIO_HIGH)
201 ring->funcs->emit_wave_limit(ring, true);
202
203 if (ring->funcs->insert_start)
204 ring->funcs->insert_start(ring);
205
206 if (job) {
207 r = amdgpu_vm_flush(ring, job, need_pipe_sync);
208 if (r) {
209 amdgpu_ring_undo(ring);
210 return r;
211 }
212 }
213
214 if (job && ring->funcs->init_cond_exec)
215 patch_offset = amdgpu_ring_init_cond_exec(ring);
216
217 amdgpu_device_flush_hdp(adev, ring);
218
219 if (need_ctx_switch)
220 status |= AMDGPU_HAVE_CTX_SWITCH;
221
222 if (job && ring->funcs->emit_cntxcntl) {
223 status |= job->preamble_status;
224 status |= job->preemption_status;
225 amdgpu_ring_emit_cntxcntl(ring, status);
226 }
227
228 /* Setup initial TMZiness and send it off.
229 */
230 secure = false;
231 if (job && ring->funcs->emit_frame_cntl) {
232 secure = ib->flags & AMDGPU_IB_FLAGS_SECURE;
233 amdgpu_ring_emit_frame_cntl(ring, true, secure);
234 }
235
236 for (i = 0; i < num_ibs; ++i) {
237 ib = &ibs[i];
238
239 if (job && ring->funcs->emit_frame_cntl) {
240 if (secure != !!(ib->flags & AMDGPU_IB_FLAGS_SECURE)) {
241 amdgpu_ring_emit_frame_cntl(ring, false, secure);
242 secure = !secure;
243 amdgpu_ring_emit_frame_cntl(ring, true, secure);
244 }
245 }
246
247 amdgpu_ring_emit_ib(ring, job, ib, status);
248 status &= ~AMDGPU_HAVE_CTX_SWITCH;
249 }
250
251 if (job && ring->funcs->emit_frame_cntl)
252 amdgpu_ring_emit_frame_cntl(ring, false, secure);
253
254 amdgpu_device_invalidate_hdp(adev, ring);
255
256 if (ib->flags & AMDGPU_IB_FLAG_TC_WB_NOT_INVALIDATE)
257 fence_flags |= AMDGPU_FENCE_FLAG_TC_WB_ONLY;
258
259 /* wrap the last IB with fence */
260 if (job && job->uf_addr) {
261 amdgpu_ring_emit_fence(ring, job->uf_addr, job->uf_sequence,
262 fence_flags | AMDGPU_FENCE_FLAG_64BIT);
263 }
264
265 r = amdgpu_fence_emit(ring, f, fence_flags);
266 if (r) {
267 dev_err(adev->dev, "failed to emit fence (%d)\n", r);
268 if (job && job->vmid)
269 amdgpu_vmid_reset(adev, ring->funcs->vmhub, job->vmid);
270 amdgpu_ring_undo(ring);
271 return r;
272 }
273
274 if (ring->funcs->insert_end)
275 ring->funcs->insert_end(ring);
276
277 if (patch_offset != ~0 && ring->funcs->patch_cond_exec)
278 amdgpu_ring_patch_cond_exec(ring, patch_offset);
279
280 ring->current_ctx = fence_ctx;
281 if (vm && ring->funcs->emit_switch_buffer)
282 amdgpu_ring_emit_switch_buffer(ring);
283
284 if (ring->funcs->emit_wave_limit &&
285 ring->hw_prio == AMDGPU_GFX_PIPE_PRIO_HIGH)
286 ring->funcs->emit_wave_limit(ring, false);
287
288 amdgpu_ring_commit(ring);
289 return 0;
290}
291
292/**
293 * amdgpu_ib_pool_init - Init the IB (Indirect Buffer) pool
294 *
295 * @adev: amdgpu_device pointer
296 *
297 * Initialize the suballocator to manage a pool of memory
298 * for use as IBs (all asics).
299 * Returns 0 on success, error on failure.
300 */
301int amdgpu_ib_pool_init(struct amdgpu_device *adev)
302{
303 unsigned size;
304 int r, i;
305
306 if (adev->ib_pool_ready)
307 return 0;
308
309 for (i = 0; i < AMDGPU_IB_POOL_MAX; i++) {
310 if (i == AMDGPU_IB_POOL_DIRECT)
311 size = PAGE_SIZE * 6;
312 else
313 size = AMDGPU_IB_POOL_SIZE;
314
315 r = amdgpu_sa_bo_manager_init(adev, &adev->ib_pools[i],
316 size, AMDGPU_GPU_PAGE_SIZE,
317 AMDGPU_GEM_DOMAIN_GTT);
318 if (r)
319 goto error;
320 }
321 adev->ib_pool_ready = true;
322
323 return 0;
324
325error:
326 while (i--)
327 amdgpu_sa_bo_manager_fini(adev, &adev->ib_pools[i]);
328 return r;
329}
330
331/**
332 * amdgpu_ib_pool_fini - Free the IB (Indirect Buffer) pool
333 *
334 * @adev: amdgpu_device pointer
335 *
336 * Tear down the suballocator managing the pool of memory
337 * for use as IBs (all asics).
338 */
339void amdgpu_ib_pool_fini(struct amdgpu_device *adev)
340{
341 int i;
342
343 if (!adev->ib_pool_ready)
344 return;
345
346 for (i = 0; i < AMDGPU_IB_POOL_MAX; i++)
347 amdgpu_sa_bo_manager_fini(adev, &adev->ib_pools[i]);
348 adev->ib_pool_ready = false;
349}
350
351/**
352 * amdgpu_ib_ring_tests - test IBs on the rings
353 *
354 * @adev: amdgpu_device pointer
355 *
356 * Test an IB (Indirect Buffer) on each ring.
357 * If the test fails, disable the ring.
358 * Returns 0 on success, error if the primary GFX ring
359 * IB test fails.
360 */
361int amdgpu_ib_ring_tests(struct amdgpu_device *adev)
362{
363 long tmo_gfx, tmo_mm;
364 int r, ret = 0;
365 unsigned i;
366
367 tmo_mm = tmo_gfx = AMDGPU_IB_TEST_TIMEOUT;
368 if (amdgpu_sriov_vf(adev)) {
369 /* for MM engines in hypervisor side they are not scheduled together
370 * with CP and SDMA engines, so even in exclusive mode MM engine could
371 * still running on other VF thus the IB TEST TIMEOUT for MM engines
372 * under SR-IOV should be set to a long time. 8 sec should be enough
373 * for the MM comes back to this VF.
374 */
375 tmo_mm = 8 * AMDGPU_IB_TEST_TIMEOUT;
376 }
377
378 if (amdgpu_sriov_runtime(adev)) {
379 /* for CP & SDMA engines since they are scheduled together so
380 * need to make the timeout width enough to cover the time
381 * cost waiting for it coming back under RUNTIME only
382 */
383 tmo_gfx = 8 * AMDGPU_IB_TEST_TIMEOUT;
384 } else if (adev->gmc.xgmi.hive_id) {
385 tmo_gfx = AMDGPU_IB_TEST_GFX_XGMI_TIMEOUT;
386 }
387
388 for (i = 0; i < adev->num_rings; ++i) {
389 struct amdgpu_ring *ring = adev->rings[i];
390 long tmo;
391
392 /* KIQ rings don't have an IB test because we never submit IBs
393 * to them and they have no interrupt support.
394 */
395 if (!ring->sched.ready || !ring->funcs->test_ib)
396 continue;
397
398 /* MM engine need more time */
399 if (ring->funcs->type == AMDGPU_RING_TYPE_UVD ||
400 ring->funcs->type == AMDGPU_RING_TYPE_VCE ||
401 ring->funcs->type == AMDGPU_RING_TYPE_UVD_ENC ||
402 ring->funcs->type == AMDGPU_RING_TYPE_VCN_DEC ||
403 ring->funcs->type == AMDGPU_RING_TYPE_VCN_ENC ||
404 ring->funcs->type == AMDGPU_RING_TYPE_VCN_JPEG)
405 tmo = tmo_mm;
406 else
407 tmo = tmo_gfx;
408
409 r = amdgpu_ring_test_ib(ring, tmo);
410 if (!r) {
411 DRM_DEV_DEBUG(adev->dev, "ib test on %s succeeded\n",
412 ring->name);
413 continue;
414 }
415
416 ring->sched.ready = false;
417 DRM_DEV_ERROR(adev->dev, "IB test failed on %s (%d).\n",
418 ring->name, r);
419
420 if (ring == &adev->gfx.gfx_ring[0]) {
421 /* oh, oh, that's really bad */
422 adev->accel_working = false;
423 return r;
424
425 } else {
426 ret = r;
427 }
428 }
429 return ret;
430}
431
432/*
433 * Debugfs info
434 */
435#if defined(CONFIG_DEBUG_FS)
436
437static int amdgpu_debugfs_sa_info_show(struct seq_file *m, void *unused)
438{
439 struct amdgpu_device *adev = (struct amdgpu_device *)m->private;
440
441 seq_printf(m, "--------------------- DELAYED --------------------- \n");
442 amdgpu_sa_bo_dump_debug_info(&adev->ib_pools[AMDGPU_IB_POOL_DELAYED],
443 m);
444 seq_printf(m, "-------------------- IMMEDIATE -------------------- \n");
445 amdgpu_sa_bo_dump_debug_info(&adev->ib_pools[AMDGPU_IB_POOL_IMMEDIATE],
446 m);
447 seq_printf(m, "--------------------- DIRECT ---------------------- \n");
448 amdgpu_sa_bo_dump_debug_info(&adev->ib_pools[AMDGPU_IB_POOL_DIRECT], m);
449
450 return 0;
451}
452
453DEFINE_SHOW_ATTRIBUTE(amdgpu_debugfs_sa_info);
454
455#endif
456
457void amdgpu_debugfs_sa_init(struct amdgpu_device *adev)
458{
459#if defined(CONFIG_DEBUG_FS)
460 struct drm_minor *minor = adev_to_drm(adev)->primary;
461 struct dentry *root = minor->debugfs_root;
462
463 debugfs_create_file("amdgpu_sa_info", 0444, root, adev,
464 &amdgpu_debugfs_sa_info_fops);
465
466#endif
467}
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 * Christian König
28 */
29#include <linux/seq_file.h>
30#include <linux/slab.h>
31
32#include <drm/amdgpu_drm.h>
33#include <drm/drm_debugfs.h>
34
35#include "amdgpu.h"
36#include "atom.h"
37#include "amdgpu_trace.h"
38
39#define AMDGPU_IB_TEST_TIMEOUT msecs_to_jiffies(1000)
40#define AMDGPU_IB_TEST_GFX_XGMI_TIMEOUT msecs_to_jiffies(2000)
41
42/*
43 * IB
44 * IBs (Indirect Buffers) and areas of GPU accessible memory where
45 * commands are stored. You can put a pointer to the IB in the
46 * command ring and the hw will fetch the commands from the IB
47 * and execute them. Generally userspace acceleration drivers
48 * produce command buffers which are send to the kernel and
49 * put in IBs for execution by the requested ring.
50 */
51static int amdgpu_debugfs_sa_init(struct amdgpu_device *adev);
52
53/**
54 * amdgpu_ib_get - request an IB (Indirect Buffer)
55 *
56 * @ring: ring index the IB is associated with
57 * @size: requested IB size
58 * @ib: IB object returned
59 *
60 * Request an IB (all asics). IBs are allocated using the
61 * suballocator.
62 * Returns 0 on success, error on failure.
63 */
64int amdgpu_ib_get(struct amdgpu_device *adev, struct amdgpu_vm *vm,
65 unsigned size, struct amdgpu_ib *ib)
66{
67 int r;
68
69 if (size) {
70 r = amdgpu_sa_bo_new(&adev->ring_tmp_bo,
71 &ib->sa_bo, size, 256);
72 if (r) {
73 dev_err(adev->dev, "failed to get a new IB (%d)\n", r);
74 return r;
75 }
76
77 ib->ptr = amdgpu_sa_bo_cpu_addr(ib->sa_bo);
78
79 if (!vm)
80 ib->gpu_addr = amdgpu_sa_bo_gpu_addr(ib->sa_bo);
81 }
82
83 return 0;
84}
85
86/**
87 * amdgpu_ib_free - free an IB (Indirect Buffer)
88 *
89 * @adev: amdgpu_device pointer
90 * @ib: IB object to free
91 * @f: the fence SA bo need wait on for the ib alloation
92 *
93 * Free an IB (all asics).
94 */
95void amdgpu_ib_free(struct amdgpu_device *adev, struct amdgpu_ib *ib,
96 struct dma_fence *f)
97{
98 amdgpu_sa_bo_free(adev, &ib->sa_bo, f);
99}
100
101/**
102 * amdgpu_ib_schedule - schedule an IB (Indirect Buffer) on the ring
103 *
104 * @adev: amdgpu_device pointer
105 * @num_ibs: number of IBs to schedule
106 * @ibs: IB objects to schedule
107 * @f: fence created during this submission
108 *
109 * Schedule an IB on the associated ring (all asics).
110 * Returns 0 on success, error on failure.
111 *
112 * On SI, there are two parallel engines fed from the primary ring,
113 * the CE (Constant Engine) and the DE (Drawing Engine). Since
114 * resource descriptors have moved to memory, the CE allows you to
115 * prime the caches while the DE is updating register state so that
116 * the resource descriptors will be already in cache when the draw is
117 * processed. To accomplish this, the userspace driver submits two
118 * IBs, one for the CE and one for the DE. If there is a CE IB (called
119 * a CONST_IB), it will be put on the ring prior to the DE IB. Prior
120 * to SI there was just a DE IB.
121 */
122int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs,
123 struct amdgpu_ib *ibs, struct amdgpu_job *job,
124 struct dma_fence **f)
125{
126 struct amdgpu_device *adev = ring->adev;
127 struct amdgpu_ib *ib = &ibs[0];
128 struct dma_fence *tmp = NULL;
129 bool skip_preamble, need_ctx_switch;
130 unsigned patch_offset = ~0;
131 struct amdgpu_vm *vm;
132 uint64_t fence_ctx;
133 uint32_t status = 0, alloc_size;
134 unsigned fence_flags = 0;
135
136 unsigned i;
137 int r = 0;
138 bool need_pipe_sync = false;
139
140 if (num_ibs == 0)
141 return -EINVAL;
142
143 /* ring tests don't use a job */
144 if (job) {
145 vm = job->vm;
146 fence_ctx = job->base.s_fence ?
147 job->base.s_fence->scheduled.context : 0;
148 } else {
149 vm = NULL;
150 fence_ctx = 0;
151 }
152
153 if (!ring->sched.ready) {
154 dev_err(adev->dev, "couldn't schedule ib on ring <%s>\n", ring->name);
155 return -EINVAL;
156 }
157
158 if (vm && !job->vmid) {
159 dev_err(adev->dev, "VM IB without ID\n");
160 return -EINVAL;
161 }
162
163 alloc_size = ring->funcs->emit_frame_size + num_ibs *
164 ring->funcs->emit_ib_size;
165
166 r = amdgpu_ring_alloc(ring, alloc_size);
167 if (r) {
168 dev_err(adev->dev, "scheduling IB failed (%d).\n", r);
169 return r;
170 }
171
172 need_ctx_switch = ring->current_ctx != fence_ctx;
173 if (ring->funcs->emit_pipeline_sync && job &&
174 ((tmp = amdgpu_sync_get_fence(&job->sched_sync, NULL)) ||
175 (amdgpu_sriov_vf(adev) && need_ctx_switch) ||
176 amdgpu_vm_need_pipeline_sync(ring, job))) {
177 need_pipe_sync = true;
178
179 if (tmp)
180 trace_amdgpu_ib_pipe_sync(job, tmp);
181
182 dma_fence_put(tmp);
183 }
184
185 if (ring->funcs->insert_start)
186 ring->funcs->insert_start(ring);
187
188 if (job) {
189 r = amdgpu_vm_flush(ring, job, need_pipe_sync);
190 if (r) {
191 amdgpu_ring_undo(ring);
192 return r;
193 }
194 }
195
196 if (job && ring->funcs->init_cond_exec)
197 patch_offset = amdgpu_ring_init_cond_exec(ring);
198
199#ifdef CONFIG_X86_64
200 if (!(adev->flags & AMD_IS_APU))
201#endif
202 {
203 if (ring->funcs->emit_hdp_flush)
204 amdgpu_ring_emit_hdp_flush(ring);
205 else
206 amdgpu_asic_flush_hdp(adev, ring);
207 }
208
209 if (need_ctx_switch)
210 status |= AMDGPU_HAVE_CTX_SWITCH;
211
212 skip_preamble = ring->current_ctx == fence_ctx;
213 if (job && ring->funcs->emit_cntxcntl) {
214 status |= job->preamble_status;
215 status |= job->preemption_status;
216 amdgpu_ring_emit_cntxcntl(ring, status);
217 }
218
219 for (i = 0; i < num_ibs; ++i) {
220 ib = &ibs[i];
221
222 /* drop preamble IBs if we don't have a context switch */
223 if ((ib->flags & AMDGPU_IB_FLAG_PREAMBLE) &&
224 skip_preamble &&
225 !(status & AMDGPU_PREAMBLE_IB_PRESENT_FIRST) &&
226 !amdgpu_mcbp &&
227 !amdgpu_sriov_vf(adev)) /* for SRIOV preemption, Preamble CE ib must be inserted anyway */
228 continue;
229
230 amdgpu_ring_emit_ib(ring, job, ib, status);
231 status &= ~AMDGPU_HAVE_CTX_SWITCH;
232 }
233
234 if (ring->funcs->emit_tmz)
235 amdgpu_ring_emit_tmz(ring, false);
236
237#ifdef CONFIG_X86_64
238 if (!(adev->flags & AMD_IS_APU))
239#endif
240 amdgpu_asic_invalidate_hdp(adev, ring);
241
242 if (ib->flags & AMDGPU_IB_FLAG_TC_WB_NOT_INVALIDATE)
243 fence_flags |= AMDGPU_FENCE_FLAG_TC_WB_ONLY;
244
245 /* wrap the last IB with fence */
246 if (job && job->uf_addr) {
247 amdgpu_ring_emit_fence(ring, job->uf_addr, job->uf_sequence,
248 fence_flags | AMDGPU_FENCE_FLAG_64BIT);
249 }
250
251 r = amdgpu_fence_emit(ring, f, fence_flags);
252 if (r) {
253 dev_err(adev->dev, "failed to emit fence (%d)\n", r);
254 if (job && job->vmid)
255 amdgpu_vmid_reset(adev, ring->funcs->vmhub, job->vmid);
256 amdgpu_ring_undo(ring);
257 return r;
258 }
259
260 if (ring->funcs->insert_end)
261 ring->funcs->insert_end(ring);
262
263 if (patch_offset != ~0 && ring->funcs->patch_cond_exec)
264 amdgpu_ring_patch_cond_exec(ring, patch_offset);
265
266 ring->current_ctx = fence_ctx;
267 if (vm && ring->funcs->emit_switch_buffer)
268 amdgpu_ring_emit_switch_buffer(ring);
269 amdgpu_ring_commit(ring);
270 return 0;
271}
272
273/**
274 * amdgpu_ib_pool_init - Init the IB (Indirect Buffer) pool
275 *
276 * @adev: amdgpu_device pointer
277 *
278 * Initialize the suballocator to manage a pool of memory
279 * for use as IBs (all asics).
280 * Returns 0 on success, error on failure.
281 */
282int amdgpu_ib_pool_init(struct amdgpu_device *adev)
283{
284 int r;
285
286 if (adev->ib_pool_ready) {
287 return 0;
288 }
289 r = amdgpu_sa_bo_manager_init(adev, &adev->ring_tmp_bo,
290 AMDGPU_IB_POOL_SIZE*64*1024,
291 AMDGPU_GPU_PAGE_SIZE,
292 AMDGPU_GEM_DOMAIN_GTT);
293 if (r) {
294 return r;
295 }
296
297 adev->ib_pool_ready = true;
298 if (amdgpu_debugfs_sa_init(adev)) {
299 dev_err(adev->dev, "failed to register debugfs file for SA\n");
300 }
301 return 0;
302}
303
304/**
305 * amdgpu_ib_pool_fini - Free the IB (Indirect Buffer) pool
306 *
307 * @adev: amdgpu_device pointer
308 *
309 * Tear down the suballocator managing the pool of memory
310 * for use as IBs (all asics).
311 */
312void amdgpu_ib_pool_fini(struct amdgpu_device *adev)
313{
314 if (adev->ib_pool_ready) {
315 amdgpu_sa_bo_manager_fini(adev, &adev->ring_tmp_bo);
316 adev->ib_pool_ready = false;
317 }
318}
319
320/**
321 * amdgpu_ib_ring_tests - test IBs on the rings
322 *
323 * @adev: amdgpu_device pointer
324 *
325 * Test an IB (Indirect Buffer) on each ring.
326 * If the test fails, disable the ring.
327 * Returns 0 on success, error if the primary GFX ring
328 * IB test fails.
329 */
330int amdgpu_ib_ring_tests(struct amdgpu_device *adev)
331{
332 unsigned i;
333 int r, ret = 0;
334 long tmo_gfx, tmo_mm;
335
336 tmo_mm = tmo_gfx = AMDGPU_IB_TEST_TIMEOUT;
337 if (amdgpu_sriov_vf(adev)) {
338 /* for MM engines in hypervisor side they are not scheduled together
339 * with CP and SDMA engines, so even in exclusive mode MM engine could
340 * still running on other VF thus the IB TEST TIMEOUT for MM engines
341 * under SR-IOV should be set to a long time. 8 sec should be enough
342 * for the MM comes back to this VF.
343 */
344 tmo_mm = 8 * AMDGPU_IB_TEST_TIMEOUT;
345 }
346
347 if (amdgpu_sriov_runtime(adev)) {
348 /* for CP & SDMA engines since they are scheduled together so
349 * need to make the timeout width enough to cover the time
350 * cost waiting for it coming back under RUNTIME only
351 */
352 tmo_gfx = 8 * AMDGPU_IB_TEST_TIMEOUT;
353 } else if (adev->gmc.xgmi.hive_id) {
354 tmo_gfx = AMDGPU_IB_TEST_GFX_XGMI_TIMEOUT;
355 }
356
357 for (i = 0; i < adev->num_rings; ++i) {
358 struct amdgpu_ring *ring = adev->rings[i];
359 long tmo;
360
361 /* KIQ rings don't have an IB test because we never submit IBs
362 * to them and they have no interrupt support.
363 */
364 if (!ring->sched.ready || !ring->funcs->test_ib)
365 continue;
366
367 /* MM engine need more time */
368 if (ring->funcs->type == AMDGPU_RING_TYPE_UVD ||
369 ring->funcs->type == AMDGPU_RING_TYPE_VCE ||
370 ring->funcs->type == AMDGPU_RING_TYPE_UVD_ENC ||
371 ring->funcs->type == AMDGPU_RING_TYPE_VCN_DEC ||
372 ring->funcs->type == AMDGPU_RING_TYPE_VCN_ENC ||
373 ring->funcs->type == AMDGPU_RING_TYPE_VCN_JPEG)
374 tmo = tmo_mm;
375 else
376 tmo = tmo_gfx;
377
378 r = amdgpu_ring_test_ib(ring, tmo);
379 if (!r) {
380 DRM_DEV_DEBUG(adev->dev, "ib test on %s succeeded\n",
381 ring->name);
382 continue;
383 }
384
385 ring->sched.ready = false;
386 DRM_DEV_ERROR(adev->dev, "IB test failed on %s (%d).\n",
387 ring->name, r);
388
389 if (ring == &adev->gfx.gfx_ring[0]) {
390 /* oh, oh, that's really bad */
391 adev->accel_working = false;
392 return r;
393
394 } else {
395 ret = r;
396 }
397 }
398 return ret;
399}
400
401/*
402 * Debugfs info
403 */
404#if defined(CONFIG_DEBUG_FS)
405
406static int amdgpu_debugfs_sa_info(struct seq_file *m, void *data)
407{
408 struct drm_info_node *node = (struct drm_info_node *) m->private;
409 struct drm_device *dev = node->minor->dev;
410 struct amdgpu_device *adev = dev->dev_private;
411
412 amdgpu_sa_bo_dump_debug_info(&adev->ring_tmp_bo, m);
413
414 return 0;
415
416}
417
418static const struct drm_info_list amdgpu_debugfs_sa_list[] = {
419 {"amdgpu_sa_info", &amdgpu_debugfs_sa_info, 0, NULL},
420};
421
422#endif
423
424static int amdgpu_debugfs_sa_init(struct amdgpu_device *adev)
425{
426#if defined(CONFIG_DEBUG_FS)
427 return amdgpu_debugfs_add_files(adev, amdgpu_debugfs_sa_list, 1);
428#else
429 return 0;
430#endif
431}