mirror of https://gitee.com/openkylin/linux.git
drm: kill drm_sman
No longer used. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter
parent
be2fb9da32
commit
7a6e0daaf4
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@ -9,7 +9,7 @@ drm-y := drm_auth.o drm_buffer.o drm_bufs.o drm_cache.o \
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drm_drv.o drm_fops.o drm_gem.o drm_ioctl.o drm_irq.o \
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drm_lock.o drm_memory.o drm_proc.o drm_stub.o drm_vm.o \
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drm_agpsupport.o drm_scatter.o ati_pcigart.o drm_pci.o \
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drm_platform.o drm_sysfs.o drm_hashtab.o drm_sman.o drm_mm.o \
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drm_platform.o drm_sysfs.o drm_hashtab.o drm_mm.o \
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drm_crtc.o drm_modes.o drm_edid.o \
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drm_info.o drm_debugfs.o drm_encoder_slave.o \
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drm_trace_points.o drm_global.o drm_usb.o
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@ -1,211 +0,0 @@
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/**************************************************************************
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*
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* Copyright 2006 Tungsten Graphics, Inc., Bismarck., ND., USA.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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*
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**************************************************************************/
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/*
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* Simple memory manager interface that keeps track on allocate regions on a
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* per "owner" basis. All regions associated with an "owner" can be released
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* with a simple call. Typically if the "owner" exists. The owner is any
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* "unsigned long" identifier. Can typically be a pointer to a file private
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* struct or a context identifier.
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*
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* Authors:
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* Thomas Hellström <thomas-at-tungstengraphics-dot-com>
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*/
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#include <linux/export.h>
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#include "drm_sman.h"
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struct drm_owner_item {
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struct drm_hash_item owner_hash;
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struct list_head sman_list;
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struct list_head mem_blocks;
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};
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void drm_sman_takedown(struct drm_sman * sman)
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{
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kfree(sman->mm);
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}
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EXPORT_SYMBOL(drm_sman_takedown);
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int
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drm_sman_init(struct drm_sman * sman, unsigned int num_managers,
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unsigned int user_order, unsigned int owner_order)
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{
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int ret = 0;
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sman->mm = kcalloc(num_managers, sizeof(*sman->mm), GFP_KERNEL);
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if (!sman->mm) {
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ret = -ENOMEM;
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return ret;
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}
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sman->num_managers = num_managers;
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return 0;
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}
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EXPORT_SYMBOL(drm_sman_init);
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static void *drm_sman_mm_allocate(void *private, unsigned long size,
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unsigned alignment)
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{
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struct drm_mm *mm = (struct drm_mm *) private;
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struct drm_mm_node *tmp;
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tmp = drm_mm_search_free(mm, size, alignment, 1);
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if (!tmp) {
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return NULL;
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}
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tmp = drm_mm_get_block(tmp, size, alignment);
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return tmp;
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}
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static void drm_sman_mm_free(void *private, void *ref)
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{
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struct drm_mm_node *node = (struct drm_mm_node *) ref;
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drm_mm_put_block(node);
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}
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static void drm_sman_mm_destroy(void *private)
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{
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struct drm_mm *mm = (struct drm_mm *) private;
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drm_mm_takedown(mm);
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kfree(mm);
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}
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static unsigned long drm_sman_mm_offset(void *private, void *ref)
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{
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struct drm_mm_node *node = (struct drm_mm_node *) ref;
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return node->start;
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}
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int
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drm_sman_set_range(struct drm_sman * sman, unsigned int manager,
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unsigned long start, unsigned long size)
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{
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struct drm_sman_mm *sman_mm;
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struct drm_mm *mm;
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int ret;
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BUG_ON(manager >= sman->num_managers);
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sman_mm = &sman->mm[manager];
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mm = kzalloc(sizeof(*mm), GFP_KERNEL);
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if (!mm) {
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return -ENOMEM;
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}
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sman_mm->private = mm;
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ret = drm_mm_init(mm, start, size);
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if (ret) {
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kfree(mm);
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return ret;
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}
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sman_mm->allocate = drm_sman_mm_allocate;
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sman_mm->free = drm_sman_mm_free;
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sman_mm->destroy = drm_sman_mm_destroy;
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sman_mm->offset = drm_sman_mm_offset;
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return 0;
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}
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EXPORT_SYMBOL(drm_sman_set_range);
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int
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drm_sman_set_manager(struct drm_sman * sman, unsigned int manager,
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struct drm_sman_mm * allocator)
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{
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BUG_ON(manager >= sman->num_managers);
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sman->mm[manager] = *allocator;
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return 0;
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}
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EXPORT_SYMBOL(drm_sman_set_manager);
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struct drm_memblock_item *drm_sman_alloc(struct drm_sman *sman, unsigned int manager,
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unsigned long size, unsigned alignment,
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unsigned long owner)
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{
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void *tmp;
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struct drm_sman_mm *sman_mm;
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struct drm_memblock_item *memblock;
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BUG_ON(manager >= sman->num_managers);
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sman_mm = &sman->mm[manager];
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tmp = sman_mm->allocate(sman_mm->private, size, alignment);
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if (!tmp) {
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return NULL;
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}
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memblock = kzalloc(sizeof(*memblock), GFP_KERNEL);
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if (!memblock)
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goto out;
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memblock->mm_info = tmp;
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memblock->mm = sman_mm;
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memblock->sman = sman;
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return memblock;
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out:
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sman_mm->free(sman_mm->private, tmp);
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return NULL;
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}
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EXPORT_SYMBOL(drm_sman_alloc);
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void drm_sman_free(struct drm_memblock_item *item)
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{
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list_del(&item->owner_list);
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item->mm->free(item->mm->private, item->mm_info);
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kfree(item);
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}
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EXPORT_SYMBOL(drm_sman_free);
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void drm_sman_cleanup(struct drm_sman *sman)
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{
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unsigned int i;
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struct drm_sman_mm *sman_mm;
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if (sman->mm) {
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for (i = 0; i < sman->num_managers; ++i) {
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sman_mm = &sman->mm[i];
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if (sman_mm->private) {
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sman_mm->destroy(sman_mm->private);
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sman_mm->private = NULL;
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}
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}
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}
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}
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EXPORT_SYMBOL(drm_sman_cleanup);
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@ -1,151 +0,0 @@
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/**************************************************************************
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*
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* Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*
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**************************************************************************/
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/*
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* Simple memory MANager interface that keeps track on allocate regions on a
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* per "owner" basis. All regions associated with an "owner" can be released
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* with a simple call. Typically if the "owner" exists. The owner is any
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* "unsigned long" identifier. Can typically be a pointer to a file private
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* struct or a context identifier.
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*
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* Authors:
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* Thomas Hellström <thomas-at-tungstengraphics-dot-com>
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*/
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#ifndef DRM_SMAN_H
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#define DRM_SMAN_H
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#include "drmP.h"
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#include "drm_hashtab.h"
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/*
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* A class that is an abstration of a simple memory allocator.
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* The sman implementation provides a default such allocator
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* using the drm_mm.c implementation. But the user can replace it.
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* See the SiS implementation, which may use the SiS FB kernel module
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* for memory management.
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*/
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struct drm_sman_mm {
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/* private info. If allocated, needs to be destroyed by the destroy
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function */
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void *private;
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/* Allocate a memory block with given size and alignment.
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Return an opaque reference to the memory block */
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void *(*allocate) (void *private, unsigned long size,
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unsigned alignment);
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/* Free a memory block. "ref" is the opaque reference that we got from
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the "alloc" function */
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void (*free) (void *private, void *ref);
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/* Free all resources associated with this allocator */
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void (*destroy) (void *private);
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/* Return a memory offset from the opaque reference returned from the
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"alloc" function */
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unsigned long (*offset) (void *private, void *ref);
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};
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struct drm_memblock_item {
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struct list_head owner_list;
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struct drm_hash_item user_hash;
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void *mm_info;
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struct drm_sman_mm *mm;
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struct drm_sman *sman;
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};
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struct drm_sman {
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struct drm_sman_mm *mm;
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int num_managers;
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};
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/*
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* Take down a memory manager. This function should only be called after a
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* successful init and after a call to drm_sman_cleanup.
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*/
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extern void drm_sman_takedown(struct drm_sman * sman);
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/*
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* Allocate structures for a manager.
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* num_managers are the number of memory pools to manage. (VRAM, AGP, ....)
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* user_order is the log2 of the number of buckets in the user hash table.
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* set this to approximately log2 of the max number of memory regions
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* that will be allocated for _all_ pools together.
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* owner_order is the log2 of the number of buckets in the owner hash table.
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* set this to approximately log2 of
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* the number of client file connections that will
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* be using the manager.
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*
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*/
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extern int drm_sman_init(struct drm_sman * sman, unsigned int num_managers,
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unsigned int user_order, unsigned int owner_order);
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/*
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* Initialize a drm_mm.c allocator. Should be called only once for each
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* manager unless a customized allogator is used.
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*/
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extern int drm_sman_set_range(struct drm_sman * sman, unsigned int manager,
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unsigned long start, unsigned long size);
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/*
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* Initialize a customized allocator for one of the managers.
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* (See the SiS module). The object pointed to by "allocator" is copied,
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* so it can be destroyed after this call.
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*/
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extern int drm_sman_set_manager(struct drm_sman * sman, unsigned int mananger,
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struct drm_sman_mm * allocator);
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/*
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* Allocate a memory block. Aligment is not implemented yet.
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*/
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extern struct drm_memblock_item *drm_sman_alloc(struct drm_sman * sman,
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unsigned int manager,
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unsigned long size,
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unsigned alignment,
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unsigned long owner);
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extern void drm_sman_free(struct drm_memblock_item *item);
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/*
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* Frees all stale memory blocks associated with the memory manager.
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* See idling above.
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*/
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extern void drm_sman_cleanup(struct drm_sman * sman);
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#endif
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