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2024-01-04 1543e317f1da31b75942316931e8f491a8920811 
 kernel/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
....@@ -1,22 +1,17 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
12 /*
23  * Copyright (C) 2015 Etnaviv Project
3
- *
4
- * This program is free software; you can redistribute it and/or modify it
5
- * under the terms of the GNU General Public License version 2 as published by
6
- * the Free Software Foundation.
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- *
8
- * This program is distributed in the hope that it will be useful, but WITHOUT
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- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
11
- * more details.
12
- *
13
- * You should have received a copy of the GNU General Public License along with
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- * this program.  If not, see <http://www.gnu.org/licenses/>.
154  */
165 
6
+#include <drm/drm_file.h>
177 #include <linux/dma-fence-array.h>
18
-#include <linux/reservation.h>
8
+#include <linux/file.h>
9
+#include <linux/pm_runtime.h>
10
+#include <linux/dma-resv.h>
1911 #include <linux/sync_file.h>
12
+#include <linux/uaccess.h>
13
+#include <linux/vmalloc.h>
14
+
2015 #include "etnaviv_cmdbuf.h"
2116 #include "etnaviv_drv.h"
2217 #include "etnaviv_gpu.h"
....@@ -77,6 +72,14 @@
7772 		}
7873 
7974 		submit->bos[i].flags = bo->flags;
75
+		if (submit->flags & ETNA_SUBMIT_SOFTPIN) {
76
+			if (bo->presumed < ETNAVIV_SOFTPIN_START_ADDRESS) {
77
+				DRM_ERROR("invalid softpin address\n");
78
+				ret = -EINVAL;
79
+				goto out_unlock;
80
+			}
81
+			submit->bos[i].va = bo->presumed;
82
+		}
8083 
8184 		/* normally use drm_gem_object_lookup(), but for bulk lookup
8285 		 * all under single table_lock just hit object_idr directly:
....@@ -108,9 +111,9 @@
108111 static void submit_unlock_object(struct etnaviv_gem_submit *submit, int i)
109112 {
110113 	if (submit->bos[i].flags & BO_LOCKED) {
111
-		struct etnaviv_gem_object *etnaviv_obj = submit->bos[i].obj;
114
+		struct drm_gem_object *obj = &submit->bos[i].obj->base;
112115 
113
-		ww_mutex_unlock(&etnaviv_obj->resv->lock);
116
+		dma_resv_unlock(obj->resv);
114117 		submit->bos[i].flags &= ~BO_LOCKED;
115118 	}
116119 }
....@@ -122,7 +125,7 @@
122125 
123126 retry:
124127 	for (i = 0; i < submit->nr_bos; i++) {
125
-		struct etnaviv_gem_object *etnaviv_obj = submit->bos[i].obj;
128
+		struct drm_gem_object *obj = &submit->bos[i].obj->base;
126129 
127130 		if (slow_locked == i)
128131 			slow_locked = -1;
....@@ -130,8 +133,7 @@
130133 		contended = i;
131134 
132135 		if (!(submit->bos[i].flags & BO_LOCKED)) {
133
-			ret = ww_mutex_lock_interruptible(&etnaviv_obj->resv->lock,
134
-							  ticket);
136
+			ret = dma_resv_lock_interruptible(obj->resv, ticket);
135137 			if (ret == -EALREADY)
136138 				DRM_ERROR("BO at index %u already on submit list\n",
137139 					  i);
....@@ -153,13 +155,12 @@
153155 		submit_unlock_object(submit, slow_locked);
154156 
155157 	if (ret == -EDEADLK) {
156
-		struct etnaviv_gem_object *etnaviv_obj;
158
+		struct drm_gem_object *obj;
157159 
158
-		etnaviv_obj = submit->bos[contended].obj;
160
+		obj = &submit->bos[contended].obj->base;
159161 
160162 		/* we lost out in a seqno race, lock and retry.. */
161
-		ret = ww_mutex_lock_slow_interruptible(&etnaviv_obj->resv->lock,
162
-						       ticket);
163
+		ret = dma_resv_lock_slow_interruptible(obj->resv, ticket);
163164 		if (!ret) {
164165 			submit->bos[contended].flags |= BO_LOCKED;
165166 			slow_locked = contended;
....@@ -176,10 +177,10 @@
176177 
177178 	for (i = 0; i < submit->nr_bos; i++) {
178179 		struct etnaviv_gem_submit_bo *bo = &submit->bos[i];
179
-		struct reservation_object *robj = bo->obj->resv;
180
+		struct dma_resv *robj = bo->obj->base.resv;
180181 
181182 		if (!(bo->flags & ETNA_SUBMIT_BO_WRITE)) {
182
-			ret = reservation_object_reserve_shared(robj);
183
+			ret = dma_resv_reserve_shared(robj, 1);
183184 			if (ret)
184185 				return ret;
185186 		}
....@@ -188,13 +189,13 @@
188189 			continue;
189190 
190191 		if (bo->flags & ETNA_SUBMIT_BO_WRITE) {
191
-			ret = reservation_object_get_fences_rcu(robj, &bo->excl,
192
+			ret = dma_resv_get_fences_rcu(robj, &bo->excl,
192193 								&bo->nr_shared,
193194 								&bo->shared);
194195 			if (ret)
195196 				return ret;
196197 		} else {
197
-			bo->excl = reservation_object_get_excl_rcu(robj);
198
+			bo->excl = dma_resv_get_excl_rcu(robj);
198199 		}
199200 
200201 	}
....@@ -207,13 +208,13 @@
207208 	int i;
208209 
209210 	for (i = 0; i < submit->nr_bos; i++) {
210
-		struct etnaviv_gem_object *etnaviv_obj = submit->bos[i].obj;
211
+		struct drm_gem_object *obj = &submit->bos[i].obj->base;
211212 
212213 		if (submit->bos[i].flags & ETNA_SUBMIT_BO_WRITE)
213
-			reservation_object_add_excl_fence(etnaviv_obj->resv,
214
+			dma_resv_add_excl_fence(obj->resv,
214215 							  submit->out_fence);
215216 		else
216
-			reservation_object_add_shared_fence(etnaviv_obj->resv,
217
+			dma_resv_add_shared_fence(obj->resv,
217218 							    submit->out_fence);
218219 
219220 		submit_unlock_object(submit, i);
....@@ -229,11 +230,19 @@
229230 		struct etnaviv_vram_mapping *mapping;
230231 
231232 		mapping = etnaviv_gem_mapping_get(&etnaviv_obj->base,
232
-						  submit->gpu);
233
+						  submit->mmu_context,
234
+						  submit->bos[i].va);
233235 		if (IS_ERR(mapping)) {
234236 			ret = PTR_ERR(mapping);
235237 			break;
236238 		}
239
+
240
+		if ((submit->flags & ETNA_SUBMIT_SOFTPIN) &&
241
+		     submit->bos[i].va != mapping->iova) {
242
+			etnaviv_gem_mapping_unreference(mapping);
243
+			return -EINVAL;
244
+		}
245
+
237246 		atomic_inc(&etnaviv_obj->gpu_active);
238247 
239248 		submit->bos[i].flags |= BO_PINNED;
....@@ -265,6 +274,10 @@
265274 	u32 i, last_offset = 0;
266275 	u32 *ptr = stream;
267276 	int ret;
277
+
278
+	/* Submits using softpin don't blend with relocs */
279
+	if ((submit->flags & ETNA_SUBMIT_SOFTPIN) && nr_relocs != 0)
280
+		return -EINVAL;
268281 
269282 	for (i = 0; i < nr_relocs; i++) {
270283 		const struct drm_etnaviv_gem_submit_reloc *r = relocs + i;
....@@ -366,6 +379,12 @@
366379 	if (submit->cmdbuf.suballoc)
367380 		etnaviv_cmdbuf_free(&submit->cmdbuf);
368381 
382
+	if (submit->mmu_context)
383
+		etnaviv_iommu_context_put(submit->mmu_context);
384
+
385
+	if (submit->prev_mmu_context)
386
+		etnaviv_iommu_context_put(submit->prev_mmu_context);
387
+
369388 	for (i = 0; i < submit->nr_bos; i++) {
370389 		struct etnaviv_gem_object *etnaviv_obj = submit->bos[i].obj;
371390 
....@@ -379,7 +398,7 @@
379398 
380399 		/* if the GPU submit failed, objects might still be locked */
381400 		submit_unlock_object(submit, i);
382
-		drm_gem_object_put_unlocked(&etnaviv_obj->base);
401
+		drm_gem_object_put(&etnaviv_obj->base);
383402 	}
384403 
385404 	wake_up_all(&submit->gpu->fence_event);
....@@ -441,6 +460,12 @@
441460 
442461 	if (args->flags & ~ETNA_SUBMIT_FLAGS) {
443462 		DRM_ERROR("invalid flags: 0x%x\n", args->flags);
463
+		return -EINVAL;
464
+	}
465
+
466
+	if ((args->flags & ETNA_SUBMIT_SOFTPIN) &&
467
+	    priv->mmu_global->version != ETNAVIV_IOMMU_V2) {
468
+		DRM_ERROR("softpin requested on incompatible MMU\n");
444469 		return -EINVAL;
445470 	}
446471 
....@@ -507,12 +532,13 @@
507532 		goto err_submit_ww_acquire;
508533 	}
509534 
510
-	ret = etnaviv_cmdbuf_init(gpu->cmdbuf_suballoc, &submit->cmdbuf,
535
+	ret = etnaviv_cmdbuf_init(priv->cmdbuf_suballoc, &submit->cmdbuf,
511536 				  ALIGN(args->stream_size, 8) + 8);
512537 	if (ret)
513538 		goto err_submit_objects;
514539 
515
-	submit->cmdbuf.ctx = file->driver_priv;
540
+	submit->ctx = file->driver_priv;
541
+	submit->mmu_context = etnaviv_iommu_context_get(submit->ctx->mmu);
516542 	submit->exec_state = args->exec_state;
517543 	submit->flags = args->flags;
518544 
....@@ -520,7 +546,8 @@
520546 	if (ret)
521547 		goto err_submit_objects;
522548 
523
-	if (!etnaviv_cmd_validate_one(gpu, stream, args->stream_size / 4,
549
+	if ((priv->mmu_global->version != ETNAVIV_IOMMU_V2) &&
550
+	    !etnaviv_cmd_validate_one(gpu, stream, args->stream_size / 4,
524551 				      relocs, args->nr_relocs)) {
525552 		ret = -EINVAL;
526553 		goto err_submit_objects;