forked from ~ljy/RK356X_SDK_RELEASE
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2024-01-04 1543e317f1da31b75942316931e8f491a8920811 
 kernel/drivers/gpu/drm/qxl/qxl_ttm.c
....@@ -23,18 +23,20 @@
2323  *          Alon Levy
2424  */
2525 
26
+#include <linux/delay.h>
27
+
28
+#include <drm/drm.h>
29
+#include <drm/drm_file.h>
30
+#include <drm/drm_debugfs.h>
31
+#include <drm/qxl_drm.h>
2632 #include <drm/ttm/ttm_bo_api.h>
2733 #include <drm/ttm/ttm_bo_driver.h>
28
-#include <drm/ttm/ttm_placement.h>
29
-#include <drm/ttm/ttm_page_alloc.h>
3034 #include <drm/ttm/ttm_module.h>
31
-#include <drm/drmP.h>
32
-#include <drm/drm.h>
33
-#include <drm/qxl_drm.h>
35
+#include <drm/ttm/ttm_page_alloc.h>
36
+#include <drm/ttm/ttm_placement.h>
37
+
3438 #include "qxl_drv.h"
3539 #include "qxl_object.h"
36
-
37
-#include <linux/delay.h>
3840 
3941 static struct qxl_device *qxl_get_qdev(struct ttm_bo_device *bdev)
4042 {
....@@ -46,140 +48,6 @@
4648 	return qdev;
4749 }
4850 
49
-static int qxl_ttm_mem_global_init(struct drm_global_reference *ref)
50
-{
51
-	return ttm_mem_global_init(ref->object);
52
-}
53
-
54
-static void qxl_ttm_mem_global_release(struct drm_global_reference *ref)
55
-{
56
-	ttm_mem_global_release(ref->object);
57
-}
58
-
59
-static int qxl_ttm_global_init(struct qxl_device *qdev)
60
-{
61
-	struct drm_global_reference *global_ref;
62
-	int r;
63
-
64
-	qdev->mman.mem_global_referenced = false;
65
-	global_ref = &qdev->mman.mem_global_ref;
66
-	global_ref->global_type = DRM_GLOBAL_TTM_MEM;
67
-	global_ref->size = sizeof(struct ttm_mem_global);
68
-	global_ref->init = &qxl_ttm_mem_global_init;
69
-	global_ref->release = &qxl_ttm_mem_global_release;
70
-
71
-	r = drm_global_item_ref(global_ref);
72
-	if (r != 0) {
73
-		DRM_ERROR("Failed setting up TTM memory accounting "
74
-			  "subsystem.\n");
75
-		return r;
76
-	}
77
-
78
-	qdev->mman.bo_global_ref.mem_glob =
79
-		qdev->mman.mem_global_ref.object;
80
-	global_ref = &qdev->mman.bo_global_ref.ref;
81
-	global_ref->global_type = DRM_GLOBAL_TTM_BO;
82
-	global_ref->size = sizeof(struct ttm_bo_global);
83
-	global_ref->init = &ttm_bo_global_init;
84
-	global_ref->release = &ttm_bo_global_release;
85
-	r = drm_global_item_ref(global_ref);
86
-	if (r != 0) {
87
-		DRM_ERROR("Failed setting up TTM BO subsystem.\n");
88
-		drm_global_item_unref(&qdev->mman.mem_global_ref);
89
-		return r;
90
-	}
91
-
92
-	qdev->mman.mem_global_referenced = true;
93
-	return 0;
94
-}
95
-
96
-static void qxl_ttm_global_fini(struct qxl_device *qdev)
97
-{
98
-	if (qdev->mman.mem_global_referenced) {
99
-		drm_global_item_unref(&qdev->mman.bo_global_ref.ref);
100
-		drm_global_item_unref(&qdev->mman.mem_global_ref);
101
-		qdev->mman.mem_global_referenced = false;
102
-	}
103
-}
104
-
105
-static struct vm_operations_struct qxl_ttm_vm_ops;
106
-static const struct vm_operations_struct *ttm_vm_ops;
107
-
108
-static vm_fault_t qxl_ttm_fault(struct vm_fault *vmf)
109
-{
110
-	struct ttm_buffer_object *bo;
111
-	vm_fault_t ret;
112
-
113
-	bo = (struct ttm_buffer_object *)vmf->vma->vm_private_data;
114
-	if (bo == NULL)
115
-		return VM_FAULT_NOPAGE;
116
-	ret = ttm_vm_ops->fault(vmf);
117
-	return ret;
118
-}
119
-
120
-int qxl_mmap(struct file *filp, struct vm_area_struct *vma)
121
-{
122
-	struct drm_file *file_priv;
123
-	struct qxl_device *qdev;
124
-	int r;
125
-
126
-	if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET))
127
-		return -EINVAL;
128
-
129
-	file_priv = filp->private_data;
130
-	qdev = file_priv->minor->dev->dev_private;
131
-	if (qdev == NULL) {
132
-		DRM_ERROR(
133
-		 "filp->private_data->minor->dev->dev_private == NULL\n");
134
-		return -EINVAL;
135
-	}
136
-	DRM_DEBUG_DRIVER("filp->private_data = 0x%p, vma->vm_pgoff = %lx\n",
137
-		  filp->private_data, vma->vm_pgoff);
138
-
139
-	r = ttm_bo_mmap(filp, vma, &qdev->mman.bdev);
140
-	if (unlikely(r != 0))
141
-		return r;
142
-	if (unlikely(ttm_vm_ops == NULL)) {
143
-		ttm_vm_ops = vma->vm_ops;
144
-		qxl_ttm_vm_ops = *ttm_vm_ops;
145
-		qxl_ttm_vm_ops.fault = &qxl_ttm_fault;
146
-	}
147
-	vma->vm_ops = &qxl_ttm_vm_ops;
148
-	return 0;
149
-}
150
-
151
-static int qxl_invalidate_caches(struct ttm_bo_device *bdev, uint32_t flags)
152
-{
153
-	return 0;
154
-}
155
-
156
-static int qxl_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
157
-			     struct ttm_mem_type_manager *man)
158
-{
159
-	switch (type) {
160
-	case TTM_PL_SYSTEM:
161
-		/* System memory */
162
-		man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
163
-		man->available_caching = TTM_PL_MASK_CACHING;
164
-		man->default_caching = TTM_PL_FLAG_CACHED;
165
-		break;
166
-	case TTM_PL_VRAM:
167
-	case TTM_PL_PRIV:
168
-		/* "On-card" video ram */
169
-		man->func = &ttm_bo_manager_func;
170
-		man->gpu_offset = 0;
171
-		man->flags = TTM_MEMTYPE_FLAG_FIXED |
172
-			     TTM_MEMTYPE_FLAG_MAPPABLE;
173
-		man->available_caching = TTM_PL_MASK_CACHING;
174
-		man->default_caching = TTM_PL_FLAG_CACHED;
175
-		break;
176
-	default:
177
-		DRM_ERROR("Unsupported memory type %u\n", (unsigned)type);
178
-		return -EINVAL;
179
-	}
180
-	return 0;
181
-}
182
-
18351 static void qxl_evict_flags(struct ttm_buffer_object *bo,
18452 				struct ttm_placement *placement)
18553 {
....@@ -187,7 +55,8 @@
18755 	static const struct ttm_place placements = {
18856 		.fpfn = 0,
18957 		.lpfn = 0,
190
-		.flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM
58
+		.mem_type = TTM_PL_SYSTEM,
59
+		.flags = TTM_PL_MASK_CACHING
19160 	};
19261 
19362 	if (!qxl_ttm_bo_is_qxl_bo(bo)) {
....@@ -202,40 +71,23 @@
20271 	*placement = qbo->placement;
20372 }
20473 
205
-static int qxl_verify_access(struct ttm_buffer_object *bo, struct file *filp)
74
+int qxl_ttm_io_mem_reserve(struct ttm_bo_device *bdev,
75
+			   struct ttm_resource *mem)
20676 {
207
-	struct qxl_bo *qbo = to_qxl_bo(bo);
208
-
209
-	return drm_vma_node_verify_access(&qbo->gem_base.vma_node,
210
-					  filp->private_data);
211
-}
212
-
213
-static int qxl_ttm_io_mem_reserve(struct ttm_bo_device *bdev,
214
-				  struct ttm_mem_reg *mem)
215
-{
216
-	struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
21777 	struct qxl_device *qdev = qxl_get_qdev(bdev);
21878 
219
-	mem->bus.addr = NULL;
220
-	mem->bus.offset = 0;
221
-	mem->bus.size = mem->num_pages << PAGE_SHIFT;
222
-	mem->bus.base = 0;
223
-	mem->bus.is_iomem = false;
224
-	if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE))
225
-		return -EINVAL;
22679 	switch (mem->mem_type) {
22780 	case TTM_PL_SYSTEM:
22881 		/* system memory */
22982 		return 0;
23083 	case TTM_PL_VRAM:
23184 		mem->bus.is_iomem = true;
232
-		mem->bus.base = qdev->vram_base;
233
-		mem->bus.offset = mem->start << PAGE_SHIFT;
85
+		mem->bus.offset = (mem->start << PAGE_SHIFT) + qdev->vram_base;
23486 		break;
23587 	case TTM_PL_PRIV:
23688 		mem->bus.is_iomem = true;
237
-		mem->bus.base = qdev->surfaceram_base;
238
-		mem->bus.offset = mem->start << PAGE_SHIFT;
89
+		mem->bus.offset = (mem->start << PAGE_SHIFT) +
90
+			qdev->surfaceram_base;
23991 		break;
24092 	default:
24193 		return -EINVAL;
....@@ -243,22 +95,18 @@
24395 	return 0;
24496 }
24597 
246
-static void qxl_ttm_io_mem_free(struct ttm_bo_device *bdev,
247
-				struct ttm_mem_reg *mem)
248
-{
249
-}
250
-
25198 /*
25299  * TTM backend functions.
253100  */
254101 struct qxl_ttm_tt {
255
-	struct ttm_dma_tt		ttm;
102
+	struct ttm_tt		        ttm;
256103 	struct qxl_device		*qdev;
257104 	u64				offset;
258105 };
259106 
260
-static int qxl_ttm_backend_bind(struct ttm_tt *ttm,
261
-				struct ttm_mem_reg *bo_mem)
107
+static int qxl_ttm_backend_bind(struct ttm_bo_device *bdev,
108
+				struct ttm_tt *ttm,
109
+				struct ttm_resource *bo_mem)
262110 {
263111 	struct qxl_ttm_tt *gtt = (void *)ttm;
264112 
....@@ -271,25 +119,21 @@
271119 	return -1;
272120 }
273121 
274
-static int qxl_ttm_backend_unbind(struct ttm_tt *ttm)
122
+static void qxl_ttm_backend_unbind(struct ttm_bo_device *bdev,
123
+				   struct ttm_tt *ttm)
275124 {
276125 	/* Not implemented */
277
-	return -1;
278126 }
279127 
280
-static void qxl_ttm_backend_destroy(struct ttm_tt *ttm)
128
+static void qxl_ttm_backend_destroy(struct ttm_bo_device *bdev,
129
+				    struct ttm_tt *ttm)
281130 {
282131 	struct qxl_ttm_tt *gtt = (void *)ttm;
283132 
284
-	ttm_dma_tt_fini(&gtt->ttm);
133
+	ttm_tt_destroy_common(bdev, ttm);
134
+	ttm_tt_fini(&gtt->ttm);
285135 	kfree(gtt);
286136 }
287
-
288
-static struct ttm_backend_func qxl_backend_func = {
289
-	.bind = &qxl_ttm_backend_bind,
290
-	.unbind = &qxl_ttm_backend_unbind,
291
-	.destroy = &qxl_ttm_backend_destroy,
292
-};
293137 
294138 static struct ttm_tt *qxl_ttm_tt_create(struct ttm_buffer_object *bo,
295139 					uint32_t page_flags)
....@@ -301,39 +145,27 @@
301145 	gtt = kzalloc(sizeof(struct qxl_ttm_tt), GFP_KERNEL);
302146 	if (gtt == NULL)
303147 		return NULL;
304
-	gtt->ttm.ttm.func = &qxl_backend_func;
305148 	gtt->qdev = qdev;
306
-	if (ttm_dma_tt_init(&gtt->ttm, bo, page_flags)) {
149
+	if (ttm_tt_init(&gtt->ttm, bo, page_flags)) {
307150 		kfree(gtt);
308151 		return NULL;
309152 	}
310
-	return &gtt->ttm.ttm;
311
-}
312
-
313
-static void qxl_move_null(struct ttm_buffer_object *bo,
314
-			     struct ttm_mem_reg *new_mem)
315
-{
316
-	struct ttm_mem_reg *old_mem = &bo->mem;
317
-
318
-	BUG_ON(old_mem->mm_node != NULL);
319
-	*old_mem = *new_mem;
320
-	new_mem->mm_node = NULL;
153
+	return &gtt->ttm;
321154 }
322155 
323156 static int qxl_bo_move(struct ttm_buffer_object *bo, bool evict,
324157 		       struct ttm_operation_ctx *ctx,
325
-		       struct ttm_mem_reg *new_mem)
158
+		       struct ttm_resource *new_mem)
326159 {
327
-	struct ttm_mem_reg *old_mem = &bo->mem;
160
+	struct ttm_resource *old_mem = &bo->mem;
328161 	int ret;
329162 
330163 	ret = ttm_bo_wait(bo, ctx->interruptible, ctx->no_wait_gpu);
331164 	if (ret)
332165 		return ret;
333166 
334
-
335167 	if (old_mem->mem_type == TTM_PL_SYSTEM && bo->ttm == NULL) {
336
-		qxl_move_null(bo, new_mem);
168
+		ttm_bo_move_null(bo, new_mem);
337169 		return 0;
338170 	}
339171 	return ttm_bo_move_memcpy(bo, ctx, new_mem);
....@@ -341,7 +173,7 @@
341173 
342174 static void qxl_bo_move_notify(struct ttm_buffer_object *bo,
343175 			       bool evict,
344
-			       struct ttm_mem_reg *new_mem)
176
+			       struct ttm_resource *new_mem)
345177 {
346178 	struct qxl_bo *qbo;
347179 	struct qxl_device *qdev;
....@@ -349,7 +181,7 @@
349181 	if (!qxl_ttm_bo_is_qxl_bo(bo))
350182 		return;
351183 	qbo = to_qxl_bo(bo);
352
-	qdev = qbo->gem_base.dev->dev_private;
184
+	qdev = to_qxl(qbo->tbo.base.dev);
353185 
354186 	if (bo->mem.mem_type == TTM_PL_PRIV && qbo->surface_id)
355187 		qxl_surface_evict(qdev, qbo, new_mem ? true : false);
....@@ -357,67 +189,67 @@
357189 
358190 static struct ttm_bo_driver qxl_bo_driver = {
359191 	.ttm_tt_create = &qxl_ttm_tt_create,
360
-	.invalidate_caches = &qxl_invalidate_caches,
361
-	.init_mem_type = &qxl_init_mem_type,
192
+	.ttm_tt_bind = &qxl_ttm_backend_bind,
193
+	.ttm_tt_destroy = &qxl_ttm_backend_destroy,
194
+	.ttm_tt_unbind = &qxl_ttm_backend_unbind,
362195 	.eviction_valuable = ttm_bo_eviction_valuable,
363196 	.evict_flags = &qxl_evict_flags,
364197 	.move = &qxl_bo_move,
365
-	.verify_access = &qxl_verify_access,
366198 	.io_mem_reserve = &qxl_ttm_io_mem_reserve,
367
-	.io_mem_free = &qxl_ttm_io_mem_free,
368199 	.move_notify = &qxl_bo_move_notify,
369200 };
201
+
202
+static int qxl_ttm_init_mem_type(struct qxl_device *qdev,
203
+				 unsigned int type,
204
+				 uint64_t size)
205
+{
206
+	return ttm_range_man_init(&qdev->mman.bdev, type, false, size);
207
+}
370208 
371209 int qxl_ttm_init(struct qxl_device *qdev)
372210 {
373211 	int r;
374212 	int num_io_pages; /* != rom->num_io_pages, we include surface0 */
375213 
376
-	r = qxl_ttm_global_init(qdev);
377
-	if (r)
378
-		return r;
379214 	/* No others user of address space so set it to 0 */
380215 	r = ttm_bo_device_init(&qdev->mman.bdev,
381
-			       qdev->mman.bo_global_ref.ref.object,
382216 			       &qxl_bo_driver,
383217 			       qdev->ddev.anon_inode->i_mapping,
384
-			       DRM_FILE_PAGE_OFFSET, 0);
218
+			       qdev->ddev.vma_offset_manager,
219
+			       false);
385220 	if (r) {
386221 		DRM_ERROR("failed initializing buffer object driver(%d).\n", r);
387222 		return r;
388223 	}
389224 	/* NOTE: this includes the framebuffer (aka surface 0) */
390225 	num_io_pages = qdev->rom->ram_header_offset / PAGE_SIZE;
391
-	r = ttm_bo_init_mm(&qdev->mman.bdev, TTM_PL_VRAM,
392
-			   num_io_pages);
226
+	r = qxl_ttm_init_mem_type(qdev, TTM_PL_VRAM, num_io_pages);
393227 	if (r) {
394228 		DRM_ERROR("Failed initializing VRAM heap.\n");
395229 		return r;
396230 	}
397
-	r = ttm_bo_init_mm(&qdev->mman.bdev, TTM_PL_PRIV,
398
-			   qdev->surfaceram_size / PAGE_SIZE);
231
+	r = qxl_ttm_init_mem_type(qdev, TTM_PL_PRIV,
232
+				  qdev->surfaceram_size / PAGE_SIZE);
399233 	if (r) {
400234 		DRM_ERROR("Failed initializing Surfaces heap.\n");
401235 		return r;
402236 	}
403237 	DRM_INFO("qxl: %uM of VRAM memory size\n",
404
-		 (unsigned)qdev->vram_size / (1024 * 1024));
238
+		 (unsigned int)qdev->vram_size / (1024 * 1024));
405239 	DRM_INFO("qxl: %luM of IO pages memory ready (VRAM domain)\n",
406
-		 ((unsigned)num_io_pages * PAGE_SIZE) / (1024 * 1024));
240
+		 ((unsigned int)num_io_pages * PAGE_SIZE) / (1024 * 1024));
407241 	DRM_INFO("qxl: %uM of Surface memory size\n",
408
-		 (unsigned)qdev->surfaceram_size / (1024 * 1024));
242
+		 (unsigned int)qdev->surfaceram_size / (1024 * 1024));
409243 	return 0;
410244 }
411245 
412246 void qxl_ttm_fini(struct qxl_device *qdev)
413247 {
414
-	ttm_bo_clean_mm(&qdev->mman.bdev, TTM_PL_VRAM);
415
-	ttm_bo_clean_mm(&qdev->mman.bdev, TTM_PL_PRIV);
248
+	ttm_range_man_fini(&qdev->mman.bdev, TTM_PL_VRAM);
249
+	ttm_range_man_fini(&qdev->mman.bdev, TTM_PL_PRIV);
416250 	ttm_bo_device_release(&qdev->mman.bdev);
417
-	qxl_ttm_global_fini(qdev);
418251 	DRM_INFO("qxl: ttm finalized\n");
419252 }
420
-
421253 
422254 #define QXL_DEBUGFS_MEM_TYPES 2
423255 
....@@ -425,25 +257,20 @@
425257 static int qxl_mm_dump_table(struct seq_file *m, void *data)
426258 {
427259 	struct drm_info_node *node = (struct drm_info_node *)m->private;
428
-	struct drm_mm *mm = (struct drm_mm *)node->info_ent->data;
429
-	struct drm_device *dev = node->minor->dev;
430
-	struct qxl_device *rdev = dev->dev_private;
431
-	struct ttm_bo_global *glob = rdev->mman.bdev.glob;
260
+	struct ttm_resource_manager *man = (struct ttm_resource_manager *)node->info_ent->data;
432261 	struct drm_printer p = drm_seq_file_printer(m);
433262 
434
-	spin_lock(&glob->lru_lock);
435
-	drm_mm_print(mm, &p);
436
-	spin_unlock(&glob->lru_lock);
263
+	ttm_resource_manager_debug(man, &p);
437264 	return 0;
438265 }
439266 #endif
440267 
441
-int qxl_ttm_debugfs_init(struct qxl_device *qdev)
268
+void qxl_ttm_debugfs_init(struct qxl_device *qdev)
442269 {
443270 #if defined(CONFIG_DEBUG_FS)
444271 	static struct drm_info_list qxl_mem_types_list[QXL_DEBUGFS_MEM_TYPES];
445272 	static char qxl_mem_types_names[QXL_DEBUGFS_MEM_TYPES][32];
446
-	unsigned i;
273
+	unsigned int i;
447274 
448275 	for (i = 0; i < QXL_DEBUGFS_MEM_TYPES; i++) {
449276 		if (i == 0)
....@@ -454,13 +281,11 @@
454281 		qxl_mem_types_list[i].show = &qxl_mm_dump_table;
455282 		qxl_mem_types_list[i].driver_features = 0;
456283 		if (i == 0)
457
-			qxl_mem_types_list[i].data = qdev->mman.bdev.man[TTM_PL_VRAM].priv;
284
+			qxl_mem_types_list[i].data = ttm_manager_type(&qdev->mman.bdev, TTM_PL_VRAM);
458285 		else
459
-			qxl_mem_types_list[i].data = qdev->mman.bdev.man[TTM_PL_PRIV].priv;
286
+			qxl_mem_types_list[i].data = ttm_manager_type(&qdev->mman.bdev, TTM_PL_PRIV);
460287 
461288 	}
462
-	return qxl_debugfs_add_files(qdev, qxl_mem_types_list, i);
463
-#else
464
-	return 0;
289
+	qxl_debugfs_add_files(qdev, qxl_mem_types_list, i);
465290 #endif
466291 }