2 * Copyright 2009 Jerome Glisse.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sub license, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
16 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
17 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
18 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
19 * USE OR OTHER DEALINGS IN THE SOFTWARE.
21 * The above copyright notice and this permission notice (including the
22 * next paragraph) shall be included in all copies or substantial portions
28 * Jerome Glisse <glisse@freedesktop.org>
29 * Thomas Hellstrom <thomas-at-tungstengraphics-dot-com>
32 #include <ttm/ttm_bo_api.h>
33 #include <ttm/ttm_bo_driver.h>
34 #include <ttm/ttm_placement.h>
35 #include <ttm/ttm_module.h>
36 #include <ttm/ttm_page_alloc.h>
38 #include <drm/radeon_drm.h>
39 #include <linux/seq_file.h>
40 #include <linux/slab.h>
41 #include "radeon_reg.h"
44 #define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT)
46 static int radeon_ttm_debugfs_init(struct radeon_device *rdev);
48 static struct radeon_device *radeon_get_rdev(struct ttm_bo_device *bdev)
50 struct radeon_mman *mman;
51 struct radeon_device *rdev;
53 mman = container_of(bdev, struct radeon_mman, bdev);
54 rdev = container_of(mman, struct radeon_device, mman);
62 static int radeon_ttm_mem_global_init(struct drm_global_reference *ref)
64 return ttm_mem_global_init(ref->object);
67 static void radeon_ttm_mem_global_release(struct drm_global_reference *ref)
69 ttm_mem_global_release(ref->object);
72 static int radeon_ttm_global_init(struct radeon_device *rdev)
74 struct drm_global_reference *global_ref;
77 rdev->mman.mem_global_referenced = false;
78 global_ref = &rdev->mman.mem_global_ref;
79 global_ref->global_type = DRM_GLOBAL_TTM_MEM;
80 global_ref->size = sizeof(struct ttm_mem_global);
81 global_ref->init = &radeon_ttm_mem_global_init;
82 global_ref->release = &radeon_ttm_mem_global_release;
83 r = drm_global_item_ref(global_ref);
85 DRM_ERROR("Failed setting up TTM memory accounting "
90 rdev->mman.bo_global_ref.mem_glob =
91 rdev->mman.mem_global_ref.object;
92 global_ref = &rdev->mman.bo_global_ref.ref;
93 global_ref->global_type = DRM_GLOBAL_TTM_BO;
94 global_ref->size = sizeof(struct ttm_bo_global);
95 global_ref->init = &ttm_bo_global_init;
96 global_ref->release = &ttm_bo_global_release;
97 r = drm_global_item_ref(global_ref);
99 DRM_ERROR("Failed setting up TTM BO subsystem.\n");
100 drm_global_item_unref(&rdev->mman.mem_global_ref);
104 rdev->mman.mem_global_referenced = true;
108 static void radeon_ttm_global_fini(struct radeon_device *rdev)
110 if (rdev->mman.mem_global_referenced) {
111 drm_global_item_unref(&rdev->mman.bo_global_ref.ref);
112 drm_global_item_unref(&rdev->mman.mem_global_ref);
113 rdev->mman.mem_global_referenced = false;
117 static int radeon_invalidate_caches(struct ttm_bo_device *bdev, uint32_t flags)
122 static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
123 struct ttm_mem_type_manager *man)
125 struct radeon_device *rdev;
127 rdev = radeon_get_rdev(bdev);
132 man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
133 man->available_caching = TTM_PL_MASK_CACHING;
134 man->default_caching = TTM_PL_FLAG_CACHED;
137 man->func = &ttm_bo_manager_func;
138 man->gpu_offset = rdev->mc.gtt_start;
139 man->available_caching = TTM_PL_MASK_CACHING;
140 man->default_caching = TTM_PL_FLAG_CACHED;
141 man->flags = TTM_MEMTYPE_FLAG_MAPPABLE | TTM_MEMTYPE_FLAG_CMA;
143 if (rdev->flags & RADEON_IS_AGP) {
144 if (!(drm_core_has_AGP(rdev->ddev) && rdev->ddev->agp)) {
145 DRM_ERROR("AGP is not enabled for memory type %u\n",
149 if (!rdev->ddev->agp->cant_use_aperture)
150 man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
151 man->available_caching = TTM_PL_FLAG_UNCACHED |
153 man->default_caching = TTM_PL_FLAG_WC;
158 /* "On-card" video ram */
159 man->func = &ttm_bo_manager_func;
160 man->gpu_offset = rdev->mc.vram_start;
161 man->flags = TTM_MEMTYPE_FLAG_FIXED |
162 TTM_MEMTYPE_FLAG_MAPPABLE;
163 man->available_caching = TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_WC;
164 man->default_caching = TTM_PL_FLAG_WC;
167 DRM_ERROR("Unsupported memory type %u\n", (unsigned)type);
173 static void radeon_evict_flags(struct ttm_buffer_object *bo,
174 struct ttm_placement *placement)
176 struct radeon_bo *rbo;
177 static u32 placements = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
179 if (!radeon_ttm_bo_is_radeon_bo(bo)) {
182 placement->placement = &placements;
183 placement->busy_placement = &placements;
184 placement->num_placement = 1;
185 placement->num_busy_placement = 1;
188 rbo = container_of(bo, struct radeon_bo, tbo);
189 switch (bo->mem.mem_type) {
191 if (rbo->rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready == false)
192 radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_CPU);
194 radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_GTT);
198 radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_CPU);
200 *placement = rbo->placement;
203 static int radeon_verify_access(struct ttm_buffer_object *bo, struct file *filp)
208 static void radeon_move_null(struct ttm_buffer_object *bo,
209 struct ttm_mem_reg *new_mem)
211 struct ttm_mem_reg *old_mem = &bo->mem;
213 BUG_ON(old_mem->mm_node != NULL);
215 new_mem->mm_node = NULL;
218 static int radeon_move_blit(struct ttm_buffer_object *bo,
219 bool evict, int no_wait_reserve, bool no_wait_gpu,
220 struct ttm_mem_reg *new_mem,
221 struct ttm_mem_reg *old_mem)
223 struct radeon_device *rdev;
224 uint64_t old_start, new_start;
225 struct radeon_fence *fence;
228 rdev = radeon_get_rdev(bo->bdev);
229 r = radeon_fence_create(rdev, &fence, radeon_copy_ring_index(rdev));
233 old_start = old_mem->start << PAGE_SHIFT;
234 new_start = new_mem->start << PAGE_SHIFT;
236 switch (old_mem->mem_type) {
238 old_start += rdev->mc.vram_start;
241 old_start += rdev->mc.gtt_start;
244 DRM_ERROR("Unknown placement %d\n", old_mem->mem_type);
247 switch (new_mem->mem_type) {
249 new_start += rdev->mc.vram_start;
252 new_start += rdev->mc.gtt_start;
255 DRM_ERROR("Unknown placement %d\n", old_mem->mem_type);
258 if (!rdev->ring[radeon_copy_ring_index(rdev)].ready) {
259 DRM_ERROR("Trying to move memory with ring turned off.\n");
263 BUILD_BUG_ON((PAGE_SIZE % RADEON_GPU_PAGE_SIZE) != 0);
265 /* sync other rings */
266 if (rdev->family >= CHIP_R600) {
267 for (i = 0; i < RADEON_NUM_RINGS; ++i) {
268 /* no need to sync to our own or unused rings */
269 if (i == radeon_copy_ring_index(rdev) || !rdev->ring[i].ready)
272 if (!fence->semaphore) {
273 r = radeon_semaphore_create(rdev, &fence->semaphore);
274 /* FIXME: handle semaphore error */
279 r = radeon_ring_lock(rdev, &rdev->ring[i], 3);
280 /* FIXME: handle ring lock error */
283 radeon_semaphore_emit_signal(rdev, i, fence->semaphore);
284 radeon_ring_unlock_commit(rdev, &rdev->ring[i]);
286 r = radeon_ring_lock(rdev, &rdev->ring[radeon_copy_ring_index(rdev)], 3);
287 /* FIXME: handle ring lock error */
290 radeon_semaphore_emit_wait(rdev, radeon_copy_ring_index(rdev), fence->semaphore);
291 radeon_ring_unlock_commit(rdev, &rdev->ring[radeon_copy_ring_index(rdev)]);
295 r = radeon_copy(rdev, old_start, new_start,
296 new_mem->num_pages * (PAGE_SIZE / RADEON_GPU_PAGE_SIZE), /* GPU pages */
298 /* FIXME: handle copy error */
299 r = ttm_bo_move_accel_cleanup(bo, (void *)fence, NULL,
300 evict, no_wait_reserve, no_wait_gpu, new_mem);
301 radeon_fence_unref(&fence);
305 static int radeon_move_vram_ram(struct ttm_buffer_object *bo,
306 bool evict, bool interruptible,
307 bool no_wait_reserve, bool no_wait_gpu,
308 struct ttm_mem_reg *new_mem)
310 struct radeon_device *rdev;
311 struct ttm_mem_reg *old_mem = &bo->mem;
312 struct ttm_mem_reg tmp_mem;
314 struct ttm_placement placement;
317 rdev = radeon_get_rdev(bo->bdev);
319 tmp_mem.mm_node = NULL;
322 placement.num_placement = 1;
323 placement.placement = &placements;
324 placement.num_busy_placement = 1;
325 placement.busy_placement = &placements;
326 placements = TTM_PL_MASK_CACHING | TTM_PL_FLAG_TT;
327 r = ttm_bo_mem_space(bo, &placement, &tmp_mem,
328 interruptible, no_wait_reserve, no_wait_gpu);
333 r = ttm_tt_set_placement_caching(bo->ttm, tmp_mem.placement);
338 r = ttm_tt_bind(bo->ttm, &tmp_mem);
342 r = radeon_move_blit(bo, true, no_wait_reserve, no_wait_gpu, &tmp_mem, old_mem);
346 r = ttm_bo_move_ttm(bo, true, no_wait_reserve, no_wait_gpu, new_mem);
348 ttm_bo_mem_put(bo, &tmp_mem);
352 static int radeon_move_ram_vram(struct ttm_buffer_object *bo,
353 bool evict, bool interruptible,
354 bool no_wait_reserve, bool no_wait_gpu,
355 struct ttm_mem_reg *new_mem)
357 struct radeon_device *rdev;
358 struct ttm_mem_reg *old_mem = &bo->mem;
359 struct ttm_mem_reg tmp_mem;
360 struct ttm_placement placement;
364 rdev = radeon_get_rdev(bo->bdev);
366 tmp_mem.mm_node = NULL;
369 placement.num_placement = 1;
370 placement.placement = &placements;
371 placement.num_busy_placement = 1;
372 placement.busy_placement = &placements;
373 placements = TTM_PL_MASK_CACHING | TTM_PL_FLAG_TT;
374 r = ttm_bo_mem_space(bo, &placement, &tmp_mem, interruptible, no_wait_reserve, no_wait_gpu);
378 r = ttm_bo_move_ttm(bo, true, no_wait_reserve, no_wait_gpu, &tmp_mem);
382 r = radeon_move_blit(bo, true, no_wait_reserve, no_wait_gpu, new_mem, old_mem);
387 ttm_bo_mem_put(bo, &tmp_mem);
391 static int radeon_bo_move(struct ttm_buffer_object *bo,
392 bool evict, bool interruptible,
393 bool no_wait_reserve, bool no_wait_gpu,
394 struct ttm_mem_reg *new_mem)
396 struct radeon_device *rdev;
397 struct ttm_mem_reg *old_mem = &bo->mem;
400 rdev = radeon_get_rdev(bo->bdev);
401 if (old_mem->mem_type == TTM_PL_SYSTEM && bo->ttm == NULL) {
402 radeon_move_null(bo, new_mem);
405 if ((old_mem->mem_type == TTM_PL_TT &&
406 new_mem->mem_type == TTM_PL_SYSTEM) ||
407 (old_mem->mem_type == TTM_PL_SYSTEM &&
408 new_mem->mem_type == TTM_PL_TT)) {
410 radeon_move_null(bo, new_mem);
413 if (!rdev->ring[radeon_copy_ring_index(rdev)].ready ||
414 rdev->asic->copy.copy == NULL) {
419 if (old_mem->mem_type == TTM_PL_VRAM &&
420 new_mem->mem_type == TTM_PL_SYSTEM) {
421 r = radeon_move_vram_ram(bo, evict, interruptible,
422 no_wait_reserve, no_wait_gpu, new_mem);
423 } else if (old_mem->mem_type == TTM_PL_SYSTEM &&
424 new_mem->mem_type == TTM_PL_VRAM) {
425 r = radeon_move_ram_vram(bo, evict, interruptible,
426 no_wait_reserve, no_wait_gpu, new_mem);
428 r = radeon_move_blit(bo, evict, no_wait_reserve, no_wait_gpu, new_mem, old_mem);
433 r = ttm_bo_move_memcpy(bo, evict, no_wait_reserve, no_wait_gpu, new_mem);
438 static int radeon_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
440 struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
441 struct radeon_device *rdev = radeon_get_rdev(bdev);
443 mem->bus.addr = NULL;
445 mem->bus.size = mem->num_pages << PAGE_SHIFT;
447 mem->bus.is_iomem = false;
448 if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE))
450 switch (mem->mem_type) {
456 if (rdev->flags & RADEON_IS_AGP) {
457 /* RADEON_IS_AGP is set only if AGP is active */
458 mem->bus.offset = mem->start << PAGE_SHIFT;
459 mem->bus.base = rdev->mc.agp_base;
460 mem->bus.is_iomem = !rdev->ddev->agp->cant_use_aperture;
465 mem->bus.offset = mem->start << PAGE_SHIFT;
466 /* check if it's visible */
467 if ((mem->bus.offset + mem->bus.size) > rdev->mc.visible_vram_size)
469 mem->bus.base = rdev->mc.aper_base;
470 mem->bus.is_iomem = true;
473 * Alpha: use bus.addr to hold the ioremap() return,
474 * so we can modify bus.base below.
476 if (mem->placement & TTM_PL_FLAG_WC)
478 ioremap_wc(mem->bus.base + mem->bus.offset,
482 ioremap_nocache(mem->bus.base + mem->bus.offset,
486 * Alpha: Use just the bus offset plus
487 * the hose/domain memory base for bus.base.
488 * It then can be used to build PTEs for VRAM
489 * access, as done in ttm_bo_vm_fault().
491 mem->bus.base = (mem->bus.base & 0x0ffffffffUL) +
492 rdev->ddev->hose->dense_mem_base;
501 static void radeon_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
505 static int radeon_sync_obj_wait(void *sync_obj, void *sync_arg,
506 bool lazy, bool interruptible)
508 return radeon_fence_wait((struct radeon_fence *)sync_obj, interruptible);
511 static int radeon_sync_obj_flush(void *sync_obj, void *sync_arg)
516 static void radeon_sync_obj_unref(void **sync_obj)
518 radeon_fence_unref((struct radeon_fence **)sync_obj);
521 static void *radeon_sync_obj_ref(void *sync_obj)
523 return radeon_fence_ref((struct radeon_fence *)sync_obj);
526 static bool radeon_sync_obj_signaled(void *sync_obj, void *sync_arg)
528 return radeon_fence_signaled((struct radeon_fence *)sync_obj);
532 * TTM backend functions.
534 struct radeon_ttm_tt {
535 struct ttm_dma_tt ttm;
536 struct radeon_device *rdev;
540 static int radeon_ttm_backend_bind(struct ttm_tt *ttm,
541 struct ttm_mem_reg *bo_mem)
543 struct radeon_ttm_tt *gtt = (void*)ttm;
546 gtt->offset = (unsigned long)(bo_mem->start << PAGE_SHIFT);
547 if (!ttm->num_pages) {
548 WARN(1, "nothing to bind %lu pages for mreg %p back %p!\n",
549 ttm->num_pages, bo_mem, ttm);
551 r = radeon_gart_bind(gtt->rdev, gtt->offset,
552 ttm->num_pages, ttm->pages, gtt->ttm.dma_address);
554 DRM_ERROR("failed to bind %lu pages at 0x%08X\n",
555 ttm->num_pages, (unsigned)gtt->offset);
561 static int radeon_ttm_backend_unbind(struct ttm_tt *ttm)
563 struct radeon_ttm_tt *gtt = (void *)ttm;
565 radeon_gart_unbind(gtt->rdev, gtt->offset, ttm->num_pages);
569 static void radeon_ttm_backend_destroy(struct ttm_tt *ttm)
571 struct radeon_ttm_tt *gtt = (void *)ttm;
573 ttm_dma_tt_fini(>t->ttm);
577 static struct ttm_backend_func radeon_backend_func = {
578 .bind = &radeon_ttm_backend_bind,
579 .unbind = &radeon_ttm_backend_unbind,
580 .destroy = &radeon_ttm_backend_destroy,
583 struct ttm_tt *radeon_ttm_tt_create(struct ttm_bo_device *bdev,
584 unsigned long size, uint32_t page_flags,
585 struct page *dummy_read_page)
587 struct radeon_device *rdev;
588 struct radeon_ttm_tt *gtt;
590 rdev = radeon_get_rdev(bdev);
592 if (rdev->flags & RADEON_IS_AGP) {
593 return ttm_agp_tt_create(bdev, rdev->ddev->agp->bridge,
594 size, page_flags, dummy_read_page);
598 gtt = kzalloc(sizeof(struct radeon_ttm_tt), GFP_KERNEL);
602 gtt->ttm.ttm.func = &radeon_backend_func;
604 if (ttm_dma_tt_init(>t->ttm, bdev, size, page_flags, dummy_read_page)) {
608 return >t->ttm.ttm;
611 static int radeon_ttm_tt_populate(struct ttm_tt *ttm)
613 struct radeon_device *rdev;
614 struct radeon_ttm_tt *gtt = (void *)ttm;
618 if (ttm->state != tt_unpopulated)
621 rdev = radeon_get_rdev(ttm->bdev);
623 if (rdev->flags & RADEON_IS_AGP) {
624 return ttm_agp_tt_populate(ttm);
628 #ifdef CONFIG_SWIOTLB
629 if (swiotlb_nr_tbl()) {
630 return ttm_dma_populate(>t->ttm, rdev->dev);
634 r = ttm_pool_populate(ttm);
639 for (i = 0; i < ttm->num_pages; i++) {
640 gtt->ttm.dma_address[i] = pci_map_page(rdev->pdev, ttm->pages[i],
642 PCI_DMA_BIDIRECTIONAL);
643 if (pci_dma_mapping_error(rdev->pdev, gtt->ttm.dma_address[i])) {
645 pci_unmap_page(rdev->pdev, gtt->ttm.dma_address[i],
646 PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
647 gtt->ttm.dma_address[i] = 0;
649 ttm_pool_unpopulate(ttm);
656 static void radeon_ttm_tt_unpopulate(struct ttm_tt *ttm)
658 struct radeon_device *rdev;
659 struct radeon_ttm_tt *gtt = (void *)ttm;
662 rdev = radeon_get_rdev(ttm->bdev);
664 if (rdev->flags & RADEON_IS_AGP) {
665 ttm_agp_tt_unpopulate(ttm);
670 #ifdef CONFIG_SWIOTLB
671 if (swiotlb_nr_tbl()) {
672 ttm_dma_unpopulate(>t->ttm, rdev->dev);
677 for (i = 0; i < ttm->num_pages; i++) {
678 if (gtt->ttm.dma_address[i]) {
679 pci_unmap_page(rdev->pdev, gtt->ttm.dma_address[i],
680 PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
684 ttm_pool_unpopulate(ttm);
687 static struct ttm_bo_driver radeon_bo_driver = {
688 .ttm_tt_create = &radeon_ttm_tt_create,
689 .ttm_tt_populate = &radeon_ttm_tt_populate,
690 .ttm_tt_unpopulate = &radeon_ttm_tt_unpopulate,
691 .invalidate_caches = &radeon_invalidate_caches,
692 .init_mem_type = &radeon_init_mem_type,
693 .evict_flags = &radeon_evict_flags,
694 .move = &radeon_bo_move,
695 .verify_access = &radeon_verify_access,
696 .sync_obj_signaled = &radeon_sync_obj_signaled,
697 .sync_obj_wait = &radeon_sync_obj_wait,
698 .sync_obj_flush = &radeon_sync_obj_flush,
699 .sync_obj_unref = &radeon_sync_obj_unref,
700 .sync_obj_ref = &radeon_sync_obj_ref,
701 .move_notify = &radeon_bo_move_notify,
702 .fault_reserve_notify = &radeon_bo_fault_reserve_notify,
703 .io_mem_reserve = &radeon_ttm_io_mem_reserve,
704 .io_mem_free = &radeon_ttm_io_mem_free,
707 int radeon_ttm_init(struct radeon_device *rdev)
711 r = radeon_ttm_global_init(rdev);
715 /* No others user of address space so set it to 0 */
716 r = ttm_bo_device_init(&rdev->mman.bdev,
717 rdev->mman.bo_global_ref.ref.object,
718 &radeon_bo_driver, DRM_FILE_PAGE_OFFSET,
721 DRM_ERROR("failed initializing buffer object driver(%d).\n", r);
724 rdev->mman.initialized = true;
725 r = ttm_bo_init_mm(&rdev->mman.bdev, TTM_PL_VRAM,
726 rdev->mc.real_vram_size >> PAGE_SHIFT);
728 DRM_ERROR("Failed initializing VRAM heap.\n");
731 r = radeon_bo_create(rdev, 256 * 1024, PAGE_SIZE, true,
732 RADEON_GEM_DOMAIN_VRAM,
733 &rdev->stollen_vga_memory);
737 r = radeon_bo_reserve(rdev->stollen_vga_memory, false);
740 r = radeon_bo_pin(rdev->stollen_vga_memory, RADEON_GEM_DOMAIN_VRAM, NULL);
741 radeon_bo_unreserve(rdev->stollen_vga_memory);
743 radeon_bo_unref(&rdev->stollen_vga_memory);
746 DRM_INFO("radeon: %uM of VRAM memory ready\n",
747 (unsigned)rdev->mc.real_vram_size / (1024 * 1024));
748 r = ttm_bo_init_mm(&rdev->mman.bdev, TTM_PL_TT,
749 rdev->mc.gtt_size >> PAGE_SHIFT);
751 DRM_ERROR("Failed initializing GTT heap.\n");
754 DRM_INFO("radeon: %uM of GTT memory ready.\n",
755 (unsigned)(rdev->mc.gtt_size / (1024 * 1024)));
756 if (unlikely(rdev->mman.bdev.dev_mapping == NULL)) {
757 rdev->mman.bdev.dev_mapping = rdev->ddev->dev_mapping;
760 r = radeon_ttm_debugfs_init(rdev);
762 DRM_ERROR("Failed to init debugfs\n");
768 void radeon_ttm_fini(struct radeon_device *rdev)
772 if (!rdev->mman.initialized)
774 if (rdev->stollen_vga_memory) {
775 r = radeon_bo_reserve(rdev->stollen_vga_memory, false);
777 radeon_bo_unpin(rdev->stollen_vga_memory);
778 radeon_bo_unreserve(rdev->stollen_vga_memory);
780 radeon_bo_unref(&rdev->stollen_vga_memory);
782 ttm_bo_clean_mm(&rdev->mman.bdev, TTM_PL_VRAM);
783 ttm_bo_clean_mm(&rdev->mman.bdev, TTM_PL_TT);
784 ttm_bo_device_release(&rdev->mman.bdev);
785 radeon_gart_fini(rdev);
786 radeon_ttm_global_fini(rdev);
787 rdev->mman.initialized = false;
788 DRM_INFO("radeon: ttm finalized\n");
791 /* this should only be called at bootup or when userspace
793 void radeon_ttm_set_active_vram_size(struct radeon_device *rdev, u64 size)
795 struct ttm_mem_type_manager *man;
797 if (!rdev->mman.initialized)
800 man = &rdev->mman.bdev.man[TTM_PL_VRAM];
801 /* this just adjusts TTM size idea, which sets lpfn to the correct value */
802 man->size = size >> PAGE_SHIFT;
805 static struct vm_operations_struct radeon_ttm_vm_ops;
806 static const struct vm_operations_struct *ttm_vm_ops = NULL;
808 static int radeon_ttm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
810 struct ttm_buffer_object *bo;
811 struct radeon_device *rdev;
814 bo = (struct ttm_buffer_object *)vma->vm_private_data;
816 return VM_FAULT_NOPAGE;
818 rdev = radeon_get_rdev(bo->bdev);
819 mutex_lock(&rdev->vram_mutex);
820 r = ttm_vm_ops->fault(vma, vmf);
821 mutex_unlock(&rdev->vram_mutex);
825 int radeon_mmap(struct file *filp, struct vm_area_struct *vma)
827 struct drm_file *file_priv;
828 struct radeon_device *rdev;
831 if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET)) {
832 return drm_mmap(filp, vma);
835 file_priv = filp->private_data;
836 rdev = file_priv->minor->dev->dev_private;
840 r = ttm_bo_mmap(filp, vma, &rdev->mman.bdev);
841 if (unlikely(r != 0)) {
844 if (unlikely(ttm_vm_ops == NULL)) {
845 ttm_vm_ops = vma->vm_ops;
846 radeon_ttm_vm_ops = *ttm_vm_ops;
847 radeon_ttm_vm_ops.fault = &radeon_ttm_fault;
849 vma->vm_ops = &radeon_ttm_vm_ops;
854 #define RADEON_DEBUGFS_MEM_TYPES 2
856 #if defined(CONFIG_DEBUG_FS)
857 static int radeon_mm_dump_table(struct seq_file *m, void *data)
859 struct drm_info_node *node = (struct drm_info_node *)m->private;
860 struct drm_mm *mm = (struct drm_mm *)node->info_ent->data;
861 struct drm_device *dev = node->minor->dev;
862 struct radeon_device *rdev = dev->dev_private;
864 struct ttm_bo_global *glob = rdev->mman.bdev.glob;
866 spin_lock(&glob->lru_lock);
867 ret = drm_mm_dump_table(m, mm);
868 spin_unlock(&glob->lru_lock);
873 static int radeon_ttm_debugfs_init(struct radeon_device *rdev)
875 #if defined(CONFIG_DEBUG_FS)
876 static struct drm_info_list radeon_mem_types_list[RADEON_DEBUGFS_MEM_TYPES+2];
877 static char radeon_mem_types_names[RADEON_DEBUGFS_MEM_TYPES+2][32];
880 for (i = 0; i < RADEON_DEBUGFS_MEM_TYPES; i++) {
882 sprintf(radeon_mem_types_names[i], "radeon_vram_mm");
884 sprintf(radeon_mem_types_names[i], "radeon_gtt_mm");
885 radeon_mem_types_list[i].name = radeon_mem_types_names[i];
886 radeon_mem_types_list[i].show = &radeon_mm_dump_table;
887 radeon_mem_types_list[i].driver_features = 0;
889 radeon_mem_types_list[i].data = rdev->mman.bdev.man[TTM_PL_VRAM].priv;
891 radeon_mem_types_list[i].data = rdev->mman.bdev.man[TTM_PL_TT].priv;
894 /* Add ttm page pool to debugfs */
895 sprintf(radeon_mem_types_names[i], "ttm_page_pool");
896 radeon_mem_types_list[i].name = radeon_mem_types_names[i];
897 radeon_mem_types_list[i].show = &ttm_page_alloc_debugfs;
898 radeon_mem_types_list[i].driver_features = 0;
899 radeon_mem_types_list[i++].data = NULL;
900 #ifdef CONFIG_SWIOTLB
901 if (swiotlb_nr_tbl()) {
902 sprintf(radeon_mem_types_names[i], "ttm_dma_page_pool");
903 radeon_mem_types_list[i].name = radeon_mem_types_names[i];
904 radeon_mem_types_list[i].show = &ttm_dma_page_alloc_debugfs;
905 radeon_mem_types_list[i].driver_features = 0;
906 radeon_mem_types_list[i++].data = NULL;
909 return radeon_debugfs_add_files(rdev, radeon_mem_types_list, i);