ttm-y := ttm_memory.o ttm_tt.o ttm_bo.o \
ttm_bo_util.o ttm_bo_vm.o ttm_module.o \
- ttm_execbuf_util.o ttm_page_alloc.o ttm_bo_manager.o
+ ttm_execbuf_util.o ttm_page_alloc.o ttm_range_manager.o
ttm-$(CONFIG_AGP) += ttm_agp_backend.o
ttm-$(CONFIG_DRM_TTM_DMA_PAGE_POOL) += ttm_page_alloc_dma.o
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 OR MIT */
-/**************************************************************************
- *
- * 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 <drm/ttm/ttm_module.h>
-#include <drm/ttm/ttm_bo_driver.h>
-#include <drm/ttm/ttm_placement.h>
-#include <drm/drm_mm.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-#include <linux/module.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 ttm_mem_type_manager manager;
- struct drm_mm mm;
- spinlock_t lock;
-};
-
-static inline struct ttm_range_manager *to_range_manager(struct ttm_mem_type_manager *man)
-{
- return container_of(man, struct ttm_range_manager, manager);
-}
-
-static int ttm_bo_man_get_node(struct ttm_mem_type_manager *man,
- struct ttm_buffer_object *bo,
- const struct ttm_place *place,
- struct ttm_mem_reg *mem)
-{
- struct ttm_range_manager *rman = to_range_manager(man);
- struct drm_mm *mm = &rman->mm;
- struct drm_mm_node *node;
- enum drm_mm_insert_mode mode;
- unsigned long lpfn;
- int ret;
-
- lpfn = place->lpfn;
- if (!lpfn)
- lpfn = man->size;
-
- node = kzalloc(sizeof(*node), GFP_KERNEL);
- if (!node)
- return -ENOMEM;
-
- mode = DRM_MM_INSERT_BEST;
- if (place->flags & TTM_PL_FLAG_TOPDOWN)
- mode = DRM_MM_INSERT_HIGH;
-
- spin_lock(&rman->lock);
- ret = drm_mm_insert_node_in_range(mm, node,
- mem->num_pages,
- mem->page_alignment, 0,
- place->fpfn, lpfn, mode);
- spin_unlock(&rman->lock);
-
- if (unlikely(ret)) {
- kfree(node);
- } else {
- mem->mm_node = node;
- mem->start = node->start;
- }
-
- return ret;
-}
-
-static void ttm_bo_man_put_node(struct ttm_mem_type_manager *man,
- struct ttm_mem_reg *mem)
-{
- struct ttm_range_manager *rman = to_range_manager(man);
-
- if (mem->mm_node) {
- spin_lock(&rman->lock);
- drm_mm_remove_node(mem->mm_node);
- spin_unlock(&rman->lock);
-
- kfree(mem->mm_node);
- mem->mm_node = NULL;
- }
-}
-
-static const struct ttm_mem_type_manager_func ttm_bo_manager_func;
-
-int ttm_range_man_init(struct ttm_bo_device *bdev,
- unsigned type,
- uint32_t available_caching,
- uint32_t default_caching,
- bool use_tt,
- unsigned long p_size)
-{
- struct ttm_mem_type_manager *man;
- struct ttm_range_manager *rman;
-
- rman = kzalloc(sizeof(*rman), GFP_KERNEL);
- if (!rman)
- return -ENOMEM;
-
- man = &rman->manager;
- man->available_caching = available_caching;
- man->default_caching = default_caching;
- man->use_tt = use_tt;
-
- man->func = &ttm_bo_manager_func;
-
- ttm_mem_type_manager_init(man, p_size);
-
- drm_mm_init(&rman->mm, 0, p_size);
- spin_lock_init(&rman->lock);
-
- ttm_set_driver_manager(bdev, type, &rman->manager);
- ttm_mem_type_manager_set_used(man, true);
- return 0;
-}
-EXPORT_SYMBOL(ttm_range_man_init);
-
-int ttm_range_man_fini(struct ttm_bo_device *bdev,
- unsigned type)
-{
- struct ttm_mem_type_manager *man = ttm_manager_type(bdev, type);
- struct ttm_range_manager *rman = to_range_manager(man);
- struct drm_mm *mm = &rman->mm;
- int ret;
-
- ttm_mem_type_manager_set_used(man, false);
-
- ret = ttm_mem_type_manager_force_list_clean(bdev, man);
- if (ret)
- return ret;
-
- spin_lock(&rman->lock);
- drm_mm_clean(mm);
- drm_mm_takedown(mm);
- spin_unlock(&rman->lock);
-
- ttm_mem_type_manager_cleanup(man);
- ttm_set_driver_manager(bdev, type, NULL);
- kfree(rman);
- return 0;
-}
-EXPORT_SYMBOL(ttm_range_man_fini);
-
-static void ttm_bo_man_debug(struct ttm_mem_type_manager *man,
- struct drm_printer *printer)
-{
- struct ttm_range_manager *rman = to_range_manager(man);
-
- spin_lock(&rman->lock);
- drm_mm_print(&rman->mm, printer);
- spin_unlock(&rman->lock);
-}
-
-static const struct ttm_mem_type_manager_func ttm_bo_manager_func = {
- .get_node = ttm_bo_man_get_node,
- .put_node = ttm_bo_man_put_node,
- .debug = ttm_bo_man_debug
-};
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 OR MIT */
+/**************************************************************************
+ *
+ * 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 <drm/ttm/ttm_module.h>
+#include <drm/ttm/ttm_bo_driver.h>
+#include <drm/ttm/ttm_placement.h>
+#include <drm/drm_mm.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/module.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 ttm_mem_type_manager manager;
+ struct drm_mm mm;
+ spinlock_t lock;
+};
+
+static inline struct ttm_range_manager *to_range_manager(struct ttm_mem_type_manager *man)
+{
+ return container_of(man, struct ttm_range_manager, manager);
+}
+
+static int ttm_range_man_get_node(struct ttm_mem_type_manager *man,
+ struct ttm_buffer_object *bo,
+ const struct ttm_place *place,
+ struct ttm_mem_reg *mem)
+{
+ struct ttm_range_manager *rman = to_range_manager(man);
+ struct drm_mm *mm = &rman->mm;
+ struct drm_mm_node *node;
+ enum drm_mm_insert_mode mode;
+ unsigned long lpfn;
+ int ret;
+
+ lpfn = place->lpfn;
+ if (!lpfn)
+ lpfn = man->size;
+
+ node = kzalloc(sizeof(*node), GFP_KERNEL);
+ if (!node)
+ return -ENOMEM;
+
+ mode = DRM_MM_INSERT_BEST;
+ if (place->flags & TTM_PL_FLAG_TOPDOWN)
+ mode = DRM_MM_INSERT_HIGH;
+
+ spin_lock(&rman->lock);
+ ret = drm_mm_insert_node_in_range(mm, node,
+ mem->num_pages,
+ mem->page_alignment, 0,
+ place->fpfn, lpfn, mode);
+ spin_unlock(&rman->lock);
+
+ if (unlikely(ret)) {
+ kfree(node);
+ } else {
+ mem->mm_node = node;
+ mem->start = node->start;
+ }
+
+ return ret;
+}
+
+static void ttm_range_man_put_node(struct ttm_mem_type_manager *man,
+ struct ttm_mem_reg *mem)
+{
+ struct ttm_range_manager *rman = to_range_manager(man);
+
+ if (mem->mm_node) {
+ spin_lock(&rman->lock);
+ drm_mm_remove_node(mem->mm_node);
+ spin_unlock(&rman->lock);
+
+ kfree(mem->mm_node);
+ mem->mm_node = NULL;
+ }
+}
+
+static const struct ttm_mem_type_manager_func ttm_range_manager_func;
+
+int ttm_range_man_init(struct ttm_bo_device *bdev,
+ unsigned type,
+ uint32_t available_caching,
+ uint32_t default_caching,
+ bool use_tt,
+ unsigned long p_size)
+{
+ struct ttm_mem_type_manager *man;
+ struct ttm_range_manager *rman;
+
+ rman = kzalloc(sizeof(*rman), GFP_KERNEL);
+ if (!rman)
+ return -ENOMEM;
+
+ man = &rman->manager;
+ man->available_caching = available_caching;
+ man->default_caching = default_caching;
+ man->use_tt = use_tt;
+
+ man->func = &ttm_range_manager_func;
+
+ ttm_mem_type_manager_init(man, p_size);
+
+ drm_mm_init(&rman->mm, 0, p_size);
+ spin_lock_init(&rman->lock);
+
+ ttm_set_driver_manager(bdev, type, &rman->manager);
+ ttm_mem_type_manager_set_used(man, true);
+ return 0;
+}
+EXPORT_SYMBOL(ttm_range_man_init);
+
+int ttm_range_man_fini(struct ttm_bo_device *bdev,
+ unsigned type)
+{
+ struct ttm_mem_type_manager *man = ttm_manager_type(bdev, type);
+ struct ttm_range_manager *rman = to_range_manager(man);
+ struct drm_mm *mm = &rman->mm;
+ int ret;
+
+ ttm_mem_type_manager_set_used(man, false);
+
+ ret = ttm_mem_type_manager_force_list_clean(bdev, man);
+ if (ret)
+ return ret;
+
+ spin_lock(&rman->lock);
+ drm_mm_clean(mm);
+ drm_mm_takedown(mm);
+ spin_unlock(&rman->lock);
+
+ ttm_mem_type_manager_cleanup(man);
+ ttm_set_driver_manager(bdev, type, NULL);
+ kfree(rman);
+ return 0;
+}
+EXPORT_SYMBOL(ttm_range_man_fini);
+
+static void ttm_range_man_debug(struct ttm_mem_type_manager *man,
+ struct drm_printer *printer)
+{
+ struct ttm_range_manager *rman = to_range_manager(man);
+
+ spin_lock(&rman->lock);
+ drm_mm_print(&rman->mm, printer);
+ spin_unlock(&rman->lock);
+}
+
+static const struct ttm_mem_type_manager_func ttm_range_manager_func = {
+ .get_node = ttm_range_man_get_node,
+ .put_node = ttm_range_man_put_node,
+ .debug = ttm_range_man_debug
+};
projects / linux.git / commitdiff