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ttm_agp_backend.c
(3.78 KB)
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ttm_bo.c
(45.21 KB)
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ttm_bo_api.h
(22.82 KB)
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ttm_bo_driver.h
(32.53 KB)
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ttm_bo_manager.c
(4.37 KB)
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ttm_bo_util.c
(16.33 KB)
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ttm_bo_vm.c
(13.26 KB)
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ttm_execbuf_util.c
(6.05 KB)
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ttm_execbuf_util.h
(3.89 KB)
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ttm_lock.c
(7.5 KB)
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ttm_lock.h
(6.57 KB)
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ttm_memory.c
(11.02 KB)
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ttm_memory.h
(5.05 KB)
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ttm_module.h
(1.52 KB)
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ttm_object.c
(11.57 KB)
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ttm_object.h
(8.69 KB)
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ttm_page_alloc.c
(22.59 KB)
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ttm_page_alloc.h
(2.78 KB)
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ttm_page_alloc_dma.c
(29.56 KB)
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ttm_placement.h
(3.41 KB)
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ttm_tt.c
(8.73 KB)
Editing: ttm_bo_manager.c
/************************************************************************** * * Copyright (c) 2007-2010 VMware, Inc., Palo Alto, CA., USA * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sub license, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE * USE OR OTHER DEALINGS IN THE SOFTWARE. * **************************************************************************/ /* * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com> */ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); #include <dev/drm2/drmP.h> #include <dev/drm2/ttm/ttm_module.h> #include <dev/drm2/ttm/ttm_bo_driver.h> #include <dev/drm2/ttm/ttm_placement.h> #include <dev/drm2/drm_mm.h> /** * Currently we use a spinlock for the lock, but a mutex *may* be * more appropriate to reduce scheduling latency if the range manager * ends up with very fragmented allocation patterns. */ struct ttm_range_manager { struct drm_mm mm; struct mtx lock; }; MALLOC_DEFINE(M_TTM_RMAN, "ttm_rman", "TTM Range Manager"); static int ttm_bo_man_get_node(struct ttm_mem_type_manager *man, struct ttm_buffer_object *bo, struct ttm_placement *placement, struct ttm_mem_reg *mem) { struct ttm_range_manager *rman = (struct ttm_range_manager *) man->priv; struct drm_mm *mm = &rman->mm; struct drm_mm_node *node = NULL; unsigned long lpfn; int ret; lpfn = placement->lpfn; if (!lpfn) lpfn = man->size; do { ret = drm_mm_pre_get(mm); if (unlikely(ret)) return ret; mtx_lock(&rman->lock); node = drm_mm_search_free_in_range(mm, mem->num_pages, mem->page_alignment, placement->fpfn, lpfn, 1); if (unlikely(node == NULL)) { mtx_unlock(&rman->lock); return 0; } node = drm_mm_get_block_atomic_range(node, mem->num_pages, mem->page_alignment, placement->fpfn, lpfn); mtx_unlock(&rman->lock); } while (node == NULL); mem->mm_node = node; mem->start = node->start; return 0; } static void ttm_bo_man_put_node(struct ttm_mem_type_manager *man, struct ttm_mem_reg *mem) { struct ttm_range_manager *rman = (struct ttm_range_manager *) man->priv; if (mem->mm_node) { mtx_lock(&rman->lock); drm_mm_put_block(mem->mm_node); mtx_unlock(&rman->lock); mem->mm_node = NULL; } } static int ttm_bo_man_init(struct ttm_mem_type_manager *man, unsigned long p_size) { struct ttm_range_manager *rman; int ret; rman = malloc(sizeof(*rman), M_TTM_RMAN, M_ZERO | M_WAITOK); ret = drm_mm_init(&rman->mm, 0, p_size); if (ret) { free(rman, M_TTM_RMAN); return ret; } mtx_init(&rman->lock, "ttmrman", NULL, MTX_DEF); man->priv = rman; return 0; } static int ttm_bo_man_takedown(struct ttm_mem_type_manager *man) { struct ttm_range_manager *rman = (struct ttm_range_manager *) man->priv; struct drm_mm *mm = &rman->mm; mtx_lock(&rman->lock); if (drm_mm_clean(mm)) { drm_mm_takedown(mm); mtx_unlock(&rman->lock); mtx_destroy(&rman->lock); free(rman, M_TTM_RMAN); man->priv = NULL; return 0; } mtx_unlock(&rman->lock); return -EBUSY; } static void ttm_bo_man_debug(struct ttm_mem_type_manager *man, const char *prefix) { struct ttm_range_manager *rman = (struct ttm_range_manager *) man->priv; mtx_lock(&rman->lock); drm_mm_debug_table(&rman->mm, prefix); mtx_unlock(&rman->lock); } const struct ttm_mem_type_manager_func ttm_bo_manager_func = { ttm_bo_man_init, ttm_bo_man_takedown, ttm_bo_man_get_node, ttm_bo_man_put_node, ttm_bo_man_debug };
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