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 <linux/swiotlb.h>
42 #include "radeon_reg.h"
45 #define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT)
47 static int radeon_ttm_debugfs_init(struct radeon_device *rdev);
49 static struct radeon_device *radeon_get_rdev(struct ttm_bo_device *bdev)
51 struct radeon_mman *mman;
52 struct radeon_device *rdev;
54 mman = container_of(bdev, struct radeon_mman, bdev);
55 rdev = container_of(mman, struct radeon_device, mman);
63 static int radeon_ttm_mem_global_init(struct drm_global_reference *ref)
65 return ttm_mem_global_init(ref->object);
68 static void radeon_ttm_mem_global_release(struct drm_global_reference *ref)
70 ttm_mem_global_release(ref->object);
73 static int radeon_ttm_global_init(struct radeon_device *rdev)
75 struct drm_global_reference *global_ref;
78 rdev->mman.mem_global_referenced = false;
79 global_ref = &rdev->mman.mem_global_ref;
80 global_ref->global_type = DRM_GLOBAL_TTM_MEM;
81 global_ref->size = sizeof(struct ttm_mem_global);
82 global_ref->init = &radeon_ttm_mem_global_init;
83 global_ref->release = &radeon_ttm_mem_global_release;
84 r = drm_global_item_ref(global_ref);
86 DRM_ERROR("Failed setting up TTM memory accounting "
91 rdev->mman.bo_global_ref.mem_glob =
92 rdev->mman.mem_global_ref.object;
93 global_ref = &rdev->mman.bo_global_ref.ref;
94 global_ref->global_type = DRM_GLOBAL_TTM_BO;
95 global_ref->size = sizeof(struct ttm_bo_global);
96 global_ref->init = &ttm_bo_global_init;
97 global_ref->release = &ttm_bo_global_release;
98 r = drm_global_item_ref(global_ref);
100 DRM_ERROR("Failed setting up TTM BO subsystem.\n");
101 drm_global_item_unref(&rdev->mman.mem_global_ref);
105 rdev->mman.mem_global_referenced = true;
109 static void radeon_ttm_global_fini(struct radeon_device *rdev)
111 if (rdev->mman.mem_global_referenced) {
112 drm_global_item_unref(&rdev->mman.bo_global_ref.ref);
113 drm_global_item_unref(&rdev->mman.mem_global_ref);
114 rdev->mman.mem_global_referenced = false;
118 static int radeon_invalidate_caches(struct ttm_bo_device *bdev, uint32_t flags)
123 static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
124 struct ttm_mem_type_manager *man)
126 struct radeon_device *rdev;
128 rdev = radeon_get_rdev(bdev);
133 man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
134 man->available_caching = TTM_PL_MASK_CACHING;
135 man->default_caching = TTM_PL_FLAG_CACHED;
138 man->func = &ttm_bo_manager_func;
139 man->gpu_offset = rdev->mc.gtt_start;
140 man->available_caching = TTM_PL_MASK_CACHING;
141 man->default_caching = TTM_PL_FLAG_CACHED;
142 man->flags = TTM_MEMTYPE_FLAG_MAPPABLE | TTM_MEMTYPE_FLAG_CMA;
144 if (rdev->flags & RADEON_IS_AGP) {
145 if (!(drm_core_has_AGP(rdev->ddev) && rdev->ddev->agp)) {
146 DRM_ERROR("AGP is not enabled for memory type %u\n",
150 if (!rdev->ddev->agp->cant_use_aperture)
151 man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
152 man->available_caching = TTM_PL_FLAG_UNCACHED |
154 man->default_caching = TTM_PL_FLAG_WC;
159 /* "On-card" video ram */
160 man->func = &ttm_bo_manager_func;
161 man->gpu_offset = rdev->mc.vram_start;
162 man->flags = TTM_MEMTYPE_FLAG_FIXED |
163 TTM_MEMTYPE_FLAG_MAPPABLE;
164 man->available_caching = TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_WC;
165 man->default_caching = TTM_PL_FLAG_WC;
168 DRM_ERROR("Unsupported memory type %u\n", (unsigned)type);
174 static void radeon_evict_flags(struct ttm_buffer_object *bo,
175 struct ttm_placement *placement)
177 struct radeon_bo *rbo;
178 static u32 placements = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
180 if (!radeon_ttm_bo_is_radeon_bo(bo)) {
183 placement->placement = &placements;
184 placement->busy_placement = &placements;
185 placement->num_placement = 1;
186 placement->num_busy_placement = 1;
189 rbo = container_of(bo, struct radeon_bo, tbo);
190 switch (bo->mem.mem_type) {
192 if (rbo->rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready == false)
193 radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_CPU);
195 radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_GTT);
199 radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_CPU);
201 *placement = rbo->placement;
204 static int radeon_verify_access(struct ttm_buffer_object *bo, struct file *filp)
206 struct radeon_bo *rbo = container_of(bo, struct radeon_bo, tbo);
208 return drm_vma_node_verify_access(&rbo->gem_base.vma_node, filp);
211 static void radeon_move_null(struct ttm_buffer_object *bo,
212 struct ttm_mem_reg *new_mem)
214 struct ttm_mem_reg *old_mem = &bo->mem;
216 BUG_ON(old_mem->mm_node != NULL);
218 new_mem->mm_node = NULL;
221 static int radeon_move_blit(struct ttm_buffer_object *bo,
222 bool evict, bool no_wait_gpu,
223 struct ttm_mem_reg *new_mem,
224 struct ttm_mem_reg *old_mem)
226 struct radeon_device *rdev;
227 uint64_t old_start, new_start;
228 struct radeon_fence *fence;
231 rdev = radeon_get_rdev(bo->bdev);
232 ridx = 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[ridx].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 fence = bo->sync_obj;
267 r = radeon_copy(rdev, old_start, new_start,
268 new_mem->num_pages * (PAGE_SIZE / RADEON_GPU_PAGE_SIZE), /* GPU pages */
270 /* FIXME: handle copy error */
271 r = ttm_bo_move_accel_cleanup(bo, (void *)fence,
272 evict, no_wait_gpu, new_mem);
273 radeon_fence_unref(&fence);
277 static int radeon_move_vram_ram(struct ttm_buffer_object *bo,
278 bool evict, bool interruptible,
280 struct ttm_mem_reg *new_mem)
282 struct radeon_device *rdev;
283 struct ttm_mem_reg *old_mem = &bo->mem;
284 struct ttm_mem_reg tmp_mem;
286 struct ttm_placement placement;
289 rdev = radeon_get_rdev(bo->bdev);
291 tmp_mem.mm_node = NULL;
294 placement.num_placement = 1;
295 placement.placement = &placements;
296 placement.num_busy_placement = 1;
297 placement.busy_placement = &placements;
298 placements = TTM_PL_MASK_CACHING | TTM_PL_FLAG_TT;
299 r = ttm_bo_mem_space(bo, &placement, &tmp_mem,
300 interruptible, no_wait_gpu);
305 r = ttm_tt_set_placement_caching(bo->ttm, tmp_mem.placement);
310 r = ttm_tt_bind(bo->ttm, &tmp_mem);
314 r = radeon_move_blit(bo, true, no_wait_gpu, &tmp_mem, old_mem);
318 r = ttm_bo_move_ttm(bo, true, no_wait_gpu, new_mem);
320 ttm_bo_mem_put(bo, &tmp_mem);
324 static int radeon_move_ram_vram(struct ttm_buffer_object *bo,
325 bool evict, bool interruptible,
327 struct ttm_mem_reg *new_mem)
329 struct radeon_device *rdev;
330 struct ttm_mem_reg *old_mem = &bo->mem;
331 struct ttm_mem_reg tmp_mem;
332 struct ttm_placement placement;
336 rdev = radeon_get_rdev(bo->bdev);
338 tmp_mem.mm_node = NULL;
341 placement.num_placement = 1;
342 placement.placement = &placements;
343 placement.num_busy_placement = 1;
344 placement.busy_placement = &placements;
345 placements = TTM_PL_MASK_CACHING | TTM_PL_FLAG_TT;
346 r = ttm_bo_mem_space(bo, &placement, &tmp_mem,
347 interruptible, no_wait_gpu);
351 r = ttm_bo_move_ttm(bo, true, no_wait_gpu, &tmp_mem);
355 r = radeon_move_blit(bo, true, no_wait_gpu, new_mem, old_mem);
360 ttm_bo_mem_put(bo, &tmp_mem);
364 static int radeon_bo_move(struct ttm_buffer_object *bo,
365 bool evict, bool interruptible,
367 struct ttm_mem_reg *new_mem)
369 struct radeon_device *rdev;
370 struct ttm_mem_reg *old_mem = &bo->mem;
373 rdev = radeon_get_rdev(bo->bdev);
374 if (old_mem->mem_type == TTM_PL_SYSTEM && bo->ttm == NULL) {
375 radeon_move_null(bo, new_mem);
378 if ((old_mem->mem_type == TTM_PL_TT &&
379 new_mem->mem_type == TTM_PL_SYSTEM) ||
380 (old_mem->mem_type == TTM_PL_SYSTEM &&
381 new_mem->mem_type == TTM_PL_TT)) {
383 radeon_move_null(bo, new_mem);
386 if (!rdev->ring[radeon_copy_ring_index(rdev)].ready ||
387 rdev->asic->copy.copy == NULL) {
392 if (old_mem->mem_type == TTM_PL_VRAM &&
393 new_mem->mem_type == TTM_PL_SYSTEM) {
394 r = radeon_move_vram_ram(bo, evict, interruptible,
395 no_wait_gpu, new_mem);
396 } else if (old_mem->mem_type == TTM_PL_SYSTEM &&
397 new_mem->mem_type == TTM_PL_VRAM) {
398 r = radeon_move_ram_vram(bo, evict, interruptible,
399 no_wait_gpu, new_mem);
401 r = radeon_move_blit(bo, evict, no_wait_gpu, new_mem, old_mem);
406 r = ttm_bo_move_memcpy(bo, evict, no_wait_gpu, new_mem);
411 static int radeon_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
413 struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
414 struct radeon_device *rdev = radeon_get_rdev(bdev);
416 mem->bus.addr = NULL;
418 mem->bus.size = mem->num_pages << PAGE_SHIFT;
420 mem->bus.is_iomem = false;
421 if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE))
423 switch (mem->mem_type) {
429 if (rdev->flags & RADEON_IS_AGP) {
430 /* RADEON_IS_AGP is set only if AGP is active */
431 mem->bus.offset = mem->start << PAGE_SHIFT;
432 mem->bus.base = rdev->mc.agp_base;
433 mem->bus.is_iomem = !rdev->ddev->agp->cant_use_aperture;
438 mem->bus.offset = mem->start << PAGE_SHIFT;
439 /* check if it's visible */
440 if ((mem->bus.offset + mem->bus.size) > rdev->mc.visible_vram_size)
442 mem->bus.base = rdev->mc.aper_base;
443 mem->bus.is_iomem = true;
446 * Alpha: use bus.addr to hold the ioremap() return,
447 * so we can modify bus.base below.
449 if (mem->placement & TTM_PL_FLAG_WC)
451 ioremap_wc(mem->bus.base + mem->bus.offset,
455 ioremap_nocache(mem->bus.base + mem->bus.offset,
459 * Alpha: Use just the bus offset plus
460 * the hose/domain memory base for bus.base.
461 * It then can be used to build PTEs for VRAM
462 * access, as done in ttm_bo_vm_fault().
464 mem->bus.base = (mem->bus.base & 0x0ffffffffUL) +
465 rdev->ddev->hose->dense_mem_base;
474 static void radeon_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
478 static int radeon_sync_obj_wait(void *sync_obj, bool lazy, bool interruptible)
480 return radeon_fence_wait((struct radeon_fence *)sync_obj, interruptible);
483 static int radeon_sync_obj_flush(void *sync_obj)
488 static void radeon_sync_obj_unref(void **sync_obj)
490 radeon_fence_unref((struct radeon_fence **)sync_obj);
493 static void *radeon_sync_obj_ref(void *sync_obj)
495 return radeon_fence_ref((struct radeon_fence *)sync_obj);
498 static bool radeon_sync_obj_signaled(void *sync_obj)
500 return radeon_fence_signaled((struct radeon_fence *)sync_obj);
504 * TTM backend functions.
506 struct radeon_ttm_tt {
507 struct ttm_dma_tt ttm;
508 struct radeon_device *rdev;
512 static int radeon_ttm_backend_bind(struct ttm_tt *ttm,
513 struct ttm_mem_reg *bo_mem)
515 struct radeon_ttm_tt *gtt = (void*)ttm;
518 gtt->offset = (unsigned long)(bo_mem->start << PAGE_SHIFT);
519 if (!ttm->num_pages) {
520 WARN(1, "nothing to bind %lu pages for mreg %p back %p!\n",
521 ttm->num_pages, bo_mem, ttm);
523 r = radeon_gart_bind(gtt->rdev, gtt->offset,
524 ttm->num_pages, ttm->pages, gtt->ttm.dma_address);
526 DRM_ERROR("failed to bind %lu pages at 0x%08X\n",
527 ttm->num_pages, (unsigned)gtt->offset);
533 static int radeon_ttm_backend_unbind(struct ttm_tt *ttm)
535 struct radeon_ttm_tt *gtt = (void *)ttm;
537 radeon_gart_unbind(gtt->rdev, gtt->offset, ttm->num_pages);
541 static void radeon_ttm_backend_destroy(struct ttm_tt *ttm)
543 struct radeon_ttm_tt *gtt = (void *)ttm;
545 ttm_dma_tt_fini(>t->ttm);
549 static struct ttm_backend_func radeon_backend_func = {
550 .bind = &radeon_ttm_backend_bind,
551 .unbind = &radeon_ttm_backend_unbind,
552 .destroy = &radeon_ttm_backend_destroy,
555 static struct ttm_tt *radeon_ttm_tt_create(struct ttm_bo_device *bdev,
556 unsigned long size, uint32_t page_flags,
557 struct page *dummy_read_page)
559 struct radeon_device *rdev;
560 struct radeon_ttm_tt *gtt;
562 rdev = radeon_get_rdev(bdev);
564 if (rdev->flags & RADEON_IS_AGP) {
565 return ttm_agp_tt_create(bdev, rdev->ddev->agp->bridge,
566 size, page_flags, dummy_read_page);
570 gtt = kzalloc(sizeof(struct radeon_ttm_tt), GFP_KERNEL);
574 gtt->ttm.ttm.func = &radeon_backend_func;
576 if (ttm_dma_tt_init(>t->ttm, bdev, size, page_flags, dummy_read_page)) {
580 return >t->ttm.ttm;
583 static int radeon_ttm_tt_populate(struct ttm_tt *ttm)
585 struct radeon_device *rdev;
586 struct radeon_ttm_tt *gtt = (void *)ttm;
589 bool slave = !!(ttm->page_flags & TTM_PAGE_FLAG_SG);
591 if (ttm->state != tt_unpopulated)
594 if (slave && ttm->sg) {
595 drm_prime_sg_to_page_addr_arrays(ttm->sg, ttm->pages,
596 gtt->ttm.dma_address, ttm->num_pages);
597 ttm->state = tt_unbound;
601 rdev = radeon_get_rdev(ttm->bdev);
603 if (rdev->flags & RADEON_IS_AGP) {
604 return ttm_agp_tt_populate(ttm);
608 #ifdef CONFIG_SWIOTLB
609 if (swiotlb_nr_tbl()) {
610 return ttm_dma_populate(>t->ttm, rdev->dev);
614 r = ttm_pool_populate(ttm);
619 for (i = 0; i < ttm->num_pages; i++) {
620 gtt->ttm.dma_address[i] = pci_map_page(rdev->pdev, ttm->pages[i],
622 PCI_DMA_BIDIRECTIONAL);
623 if (pci_dma_mapping_error(rdev->pdev, gtt->ttm.dma_address[i])) {
625 pci_unmap_page(rdev->pdev, gtt->ttm.dma_address[i],
626 PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
627 gtt->ttm.dma_address[i] = 0;
629 ttm_pool_unpopulate(ttm);
636 static void radeon_ttm_tt_unpopulate(struct ttm_tt *ttm)
638 struct radeon_device *rdev;
639 struct radeon_ttm_tt *gtt = (void *)ttm;
641 bool slave = !!(ttm->page_flags & TTM_PAGE_FLAG_SG);
646 rdev = radeon_get_rdev(ttm->bdev);
648 if (rdev->flags & RADEON_IS_AGP) {
649 ttm_agp_tt_unpopulate(ttm);
654 #ifdef CONFIG_SWIOTLB
655 if (swiotlb_nr_tbl()) {
656 ttm_dma_unpopulate(>t->ttm, rdev->dev);
661 for (i = 0; i < ttm->num_pages; i++) {
662 if (gtt->ttm.dma_address[i]) {
663 pci_unmap_page(rdev->pdev, gtt->ttm.dma_address[i],
664 PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
668 ttm_pool_unpopulate(ttm);
671 static struct ttm_bo_driver radeon_bo_driver = {
672 .ttm_tt_create = &radeon_ttm_tt_create,
673 .ttm_tt_populate = &radeon_ttm_tt_populate,
674 .ttm_tt_unpopulate = &radeon_ttm_tt_unpopulate,
675 .invalidate_caches = &radeon_invalidate_caches,
676 .init_mem_type = &radeon_init_mem_type,
677 .evict_flags = &radeon_evict_flags,
678 .move = &radeon_bo_move,
679 .verify_access = &radeon_verify_access,
680 .sync_obj_signaled = &radeon_sync_obj_signaled,
681 .sync_obj_wait = &radeon_sync_obj_wait,
682 .sync_obj_flush = &radeon_sync_obj_flush,
683 .sync_obj_unref = &radeon_sync_obj_unref,
684 .sync_obj_ref = &radeon_sync_obj_ref,
685 .move_notify = &radeon_bo_move_notify,
686 .fault_reserve_notify = &radeon_bo_fault_reserve_notify,
687 .io_mem_reserve = &radeon_ttm_io_mem_reserve,
688 .io_mem_free = &radeon_ttm_io_mem_free,
691 int radeon_ttm_init(struct radeon_device *rdev)
695 r = radeon_ttm_global_init(rdev);
699 /* No others user of address space so set it to 0 */
700 r = ttm_bo_device_init(&rdev->mman.bdev,
701 rdev->mman.bo_global_ref.ref.object,
702 &radeon_bo_driver, DRM_FILE_PAGE_OFFSET,
705 DRM_ERROR("failed initializing buffer object driver(%d).\n", r);
708 rdev->mman.initialized = true;
709 r = ttm_bo_init_mm(&rdev->mman.bdev, TTM_PL_VRAM,
710 rdev->mc.real_vram_size >> PAGE_SHIFT);
712 DRM_ERROR("Failed initializing VRAM heap.\n");
715 r = radeon_bo_create(rdev, 256 * 1024, PAGE_SIZE, true,
716 RADEON_GEM_DOMAIN_VRAM,
717 NULL, &rdev->stollen_vga_memory);
721 r = radeon_bo_reserve(rdev->stollen_vga_memory, false);
724 r = radeon_bo_pin(rdev->stollen_vga_memory, RADEON_GEM_DOMAIN_VRAM, NULL);
725 radeon_bo_unreserve(rdev->stollen_vga_memory);
727 radeon_bo_unref(&rdev->stollen_vga_memory);
730 DRM_INFO("radeon: %uM of VRAM memory ready\n",
731 (unsigned) (rdev->mc.real_vram_size / (1024 * 1024)));
732 r = ttm_bo_init_mm(&rdev->mman.bdev, TTM_PL_TT,
733 rdev->mc.gtt_size >> PAGE_SHIFT);
735 DRM_ERROR("Failed initializing GTT heap.\n");
738 DRM_INFO("radeon: %uM of GTT memory ready.\n",
739 (unsigned)(rdev->mc.gtt_size / (1024 * 1024)));
740 rdev->mman.bdev.dev_mapping = rdev->ddev->dev_mapping;
742 r = radeon_ttm_debugfs_init(rdev);
744 DRM_ERROR("Failed to init debugfs\n");
750 void radeon_ttm_fini(struct radeon_device *rdev)
754 if (!rdev->mman.initialized)
756 if (rdev->stollen_vga_memory) {
757 r = radeon_bo_reserve(rdev->stollen_vga_memory, false);
759 radeon_bo_unpin(rdev->stollen_vga_memory);
760 radeon_bo_unreserve(rdev->stollen_vga_memory);
762 radeon_bo_unref(&rdev->stollen_vga_memory);
764 ttm_bo_clean_mm(&rdev->mman.bdev, TTM_PL_VRAM);
765 ttm_bo_clean_mm(&rdev->mman.bdev, TTM_PL_TT);
766 ttm_bo_device_release(&rdev->mman.bdev);
767 radeon_gart_fini(rdev);
768 radeon_ttm_global_fini(rdev);
769 rdev->mman.initialized = false;
770 DRM_INFO("radeon: ttm finalized\n");
773 /* this should only be called at bootup or when userspace
775 void radeon_ttm_set_active_vram_size(struct radeon_device *rdev, u64 size)
777 struct ttm_mem_type_manager *man;
779 if (!rdev->mman.initialized)
782 man = &rdev->mman.bdev.man[TTM_PL_VRAM];
783 /* this just adjusts TTM size idea, which sets lpfn to the correct value */
784 man->size = size >> PAGE_SHIFT;
787 static struct vm_operations_struct radeon_ttm_vm_ops;
788 static const struct vm_operations_struct *ttm_vm_ops = NULL;
790 static int radeon_ttm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
792 struct ttm_buffer_object *bo;
793 struct radeon_device *rdev;
796 bo = (struct ttm_buffer_object *)vma->vm_private_data;
798 return VM_FAULT_NOPAGE;
800 rdev = radeon_get_rdev(bo->bdev);
801 down_read(&rdev->pm.mclk_lock);
802 r = ttm_vm_ops->fault(vma, vmf);
803 up_read(&rdev->pm.mclk_lock);
807 int radeon_mmap(struct file *filp, struct vm_area_struct *vma)
809 struct drm_file *file_priv;
810 struct radeon_device *rdev;
813 if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET)) {
814 return drm_mmap(filp, vma);
817 file_priv = filp->private_data;
818 rdev = file_priv->minor->dev->dev_private;
822 r = ttm_bo_mmap(filp, vma, &rdev->mman.bdev);
823 if (unlikely(r != 0)) {
826 if (unlikely(ttm_vm_ops == NULL)) {
827 ttm_vm_ops = vma->vm_ops;
828 radeon_ttm_vm_ops = *ttm_vm_ops;
829 radeon_ttm_vm_ops.fault = &radeon_ttm_fault;
831 vma->vm_ops = &radeon_ttm_vm_ops;
836 #define RADEON_DEBUGFS_MEM_TYPES 2
838 #if defined(CONFIG_DEBUG_FS)
839 static int radeon_mm_dump_table(struct seq_file *m, void *data)
841 struct drm_info_node *node = (struct drm_info_node *)m->private;
842 struct drm_mm *mm = (struct drm_mm *)node->info_ent->data;
843 struct drm_device *dev = node->minor->dev;
844 struct radeon_device *rdev = dev->dev_private;
846 struct ttm_bo_global *glob = rdev->mman.bdev.glob;
848 spin_lock(&glob->lru_lock);
849 ret = drm_mm_dump_table(m, mm);
850 spin_unlock(&glob->lru_lock);
855 static int radeon_ttm_debugfs_init(struct radeon_device *rdev)
857 #if defined(CONFIG_DEBUG_FS)
858 static struct drm_info_list radeon_mem_types_list[RADEON_DEBUGFS_MEM_TYPES+2];
859 static char radeon_mem_types_names[RADEON_DEBUGFS_MEM_TYPES+2][32];
862 for (i = 0; i < RADEON_DEBUGFS_MEM_TYPES; i++) {
864 sprintf(radeon_mem_types_names[i], "radeon_vram_mm");
866 sprintf(radeon_mem_types_names[i], "radeon_gtt_mm");
867 radeon_mem_types_list[i].name = radeon_mem_types_names[i];
868 radeon_mem_types_list[i].show = &radeon_mm_dump_table;
869 radeon_mem_types_list[i].driver_features = 0;
871 radeon_mem_types_list[i].data = rdev->mman.bdev.man[TTM_PL_VRAM].priv;
873 radeon_mem_types_list[i].data = rdev->mman.bdev.man[TTM_PL_TT].priv;
876 /* Add ttm page pool to debugfs */
877 sprintf(radeon_mem_types_names[i], "ttm_page_pool");
878 radeon_mem_types_list[i].name = radeon_mem_types_names[i];
879 radeon_mem_types_list[i].show = &ttm_page_alloc_debugfs;
880 radeon_mem_types_list[i].driver_features = 0;
881 radeon_mem_types_list[i++].data = NULL;
882 #ifdef CONFIG_SWIOTLB
883 if (swiotlb_nr_tbl()) {
884 sprintf(radeon_mem_types_names[i], "ttm_dma_page_pool");
885 radeon_mem_types_list[i].name = radeon_mem_types_names[i];
886 radeon_mem_types_list[i].show = &ttm_dma_page_alloc_debugfs;
887 radeon_mem_types_list[i].driver_features = 0;
888 radeon_mem_types_list[i++].data = NULL;
891 return radeon_debugfs_add_files(rdev, radeon_mem_types_list, i);