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