gallium: switch drivers to the slab allocator in src/util

2 files changed, 0 insertions, 267 deletions

diff --git a/src/gallium/auxiliary/util/u_slab.c b/src/gallium/auxiliary/util/u_slab.c
deleted file mode 100644
index 7e7d43bd830..00000000000
--- a/src/gallium/auxiliary/util/u_slab.c
+++ /dev/null
@@ -1,171 +0,0 @@
-/*
- * Copyright 2010 Marek Olšák <[email protected]>
- *
- * 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
- * on 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 AUTHOR(S) AND/OR THEIR 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. */
-
-#include "util/u_slab.h"
-
-#include "util/u_math.h"
-#include "util/u_memory.h"
-#include "util/simple_list.h"
-
-#include <stdio.h>
-
-#define UTIL_SLAB_MAGIC 0xcafe4321
-
-/* The block is either allocated memory or free space. */
-struct util_slab_block {
-   /* The header. */
-   /* The first next free block. */
-   struct util_slab_block *next_free;
-
-   intptr_t magic;
-
-   /* Memory after the last member is dedicated to the block itself.
-    * The allocated size is always larger than this structure. */
-};
-
-static struct util_slab_block *
-util_slab_get_block(struct util_slab_mempool *pool,
-                    struct util_slab_page *page, unsigned index)
-{
-   return (struct util_slab_block*)
-          ((uint8_t*)page + sizeof(struct util_slab_page) +
-           (pool->block_size * index));
-}
-
-static void util_slab_add_new_page(struct util_slab_mempool *pool)
-{
-   struct util_slab_page *page;
-   struct util_slab_block *block;
-   unsigned i;
-
-   page = MALLOC(pool->page_size);
-   insert_at_tail(&pool->list, page);
-
-   /* Mark all blocks as free. */
-   for (i = 0; i < pool->num_blocks-1; i++) {
-      block = util_slab_get_block(pool, page, i);
-      block->next_free = util_slab_get_block(pool, page, i+1);
-      block->magic = UTIL_SLAB_MAGIC;
-   }
-
-   block = util_slab_get_block(pool, page, pool->num_blocks-1);
-   block->next_free = pool->first_free;
-   block->magic = UTIL_SLAB_MAGIC;
-   pool->first_free = util_slab_get_block(pool, page, 0);
-   pool->num_pages++;
-
-#if 0
-   fprintf(stderr, "New page! Num of pages: %i\n", pool->num_pages);
-#endif
-}
-
-static void *util_slab_alloc_st(struct util_slab_mempool *pool)
-{
-   struct util_slab_block *block;
-
-   if (!pool->first_free)
-      util_slab_add_new_page(pool);
-
-   block = pool->first_free;
-   assert(block->magic == UTIL_SLAB_MAGIC);
-   pool->first_free = block->next_free;
-
-   return (uint8_t*)block + sizeof(struct util_slab_block);
-}
-
-static void util_slab_free_st(struct util_slab_mempool *pool, void *ptr)
-{
-   struct util_slab_block *block =
-         (struct util_slab_block*)
-         ((uint8_t*)ptr - sizeof(struct util_slab_block));
-
-   assert(block->magic == UTIL_SLAB_MAGIC);
-   block->next_free = pool->first_free;
-   pool->first_free = block;
-}
-
-static void *util_slab_alloc_mt(struct util_slab_mempool *pool)
-{
-   void *mem;
-
-   pipe_mutex_lock(pool->mutex);
-   mem = util_slab_alloc_st(pool);
-   pipe_mutex_unlock(pool->mutex);
-   return mem;
-}
-
-static void util_slab_free_mt(struct util_slab_mempool *pool, void *ptr)
-{
-   pipe_mutex_lock(pool->mutex);
-   util_slab_free_st(pool, ptr);
-   pipe_mutex_unlock(pool->mutex);
-}
-
-void util_slab_set_thread_safety(struct util_slab_mempool *pool,
-                                    enum util_slab_threading threading)
-{
-   pool->threading = threading;
-
-   if (threading) {
-      pool->alloc = util_slab_alloc_mt;
-      pool->free = util_slab_free_mt;
-   } else {
-      pool->alloc = util_slab_alloc_st;
-      pool->free = util_slab_free_st;
-   }
-}
-
-void util_slab_create(struct util_slab_mempool *pool,
-                      unsigned item_size,
-                      unsigned num_blocks,
-                      enum util_slab_threading threading)
-{
-   item_size = align(item_size, sizeof(intptr_t));
-
-   pool->num_pages = 0;
-   pool->num_blocks = num_blocks;
-   pool->block_size = sizeof(struct util_slab_block) + item_size;
-   pool->block_size = align(pool->block_size, sizeof(intptr_t));
-   pool->page_size = sizeof(struct util_slab_page) +
-                     num_blocks * pool->block_size;
-   pool->first_free = NULL;
-
-   make_empty_list(&pool->list);
-
-   pipe_mutex_init(pool->mutex);
-
-   util_slab_set_thread_safety(pool, threading);
-}
-
-void util_slab_destroy(struct util_slab_mempool *pool)
-{
-   struct util_slab_page *page, *temp;
-
-   if (pool->list.next) {
-      foreach_s(page, temp, &pool->list) {
-         remove_from_list(page);
-         FREE(page);
-      }
-   }
-
-   pipe_mutex_destroy(pool->mutex);
-}
diff --git a/src/gallium/auxiliary/util/u_slab.h b/src/gallium/auxiliary/util/u_slab.h
deleted file mode 100644
index 0df039bcd57..00000000000
--- a/src/gallium/auxiliary/util/u_slab.h
+++ /dev/null
@@ -1,96 +0,0 @@
-/*
- * Copyright 2010 Marek Olšák <[email protected]>
- *
- * 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
- * on 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 AUTHOR(S) AND/OR THEIR 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. */
-
-/**
- * @file
- * Simple slab allocator for equally sized memory allocations.
- * util_slab_alloc and util_slab_free have time complexity in O(1).
- *
- * Good for allocations which have very low lifetime and are allocated
- * and freed very often. Use a profiler first to know if it's worth using it!
- *
- * Candidates: transfer_map
- *
- * @author Marek Olšák
- */
-
-#ifndef U_SLAB_H
-#define U_SLAB_H
-
-#include "os/os_thread.h"
-
-enum util_slab_threading {
-   UTIL_SLAB_SINGLETHREADED = FALSE,
-   UTIL_SLAB_MULTITHREADED = TRUE
-};
-
-/* The page is an array of blocks (allocations). */
-struct util_slab_page {
-   /* The header (linked-list pointers). */
-   struct util_slab_page *prev, *next;
-
-   /* Memory after the last member is dedicated to the page itself.
-    * The allocated size is always larger than this structure. */
-};
-
-struct util_slab_mempool {
-   /* Public members. */
-   void *(*alloc)(struct util_slab_mempool *pool);
-   void (*free)(struct util_slab_mempool *pool, void *ptr);
-
-   /* Private members. */
-   struct util_slab_block *first_free;
-
-   struct util_slab_page list;
-
-   unsigned block_size;
-   unsigned page_size;
-   unsigned num_blocks;
-   unsigned num_pages;
-   enum util_slab_threading threading;
-
-   pipe_mutex mutex;
-};
-
-void util_slab_create(struct util_slab_mempool *pool,
-                      unsigned item_size,
-                      unsigned num_blocks,
-                      enum util_slab_threading threading);
-
-void util_slab_destroy(struct util_slab_mempool *pool);
-
-void util_slab_set_thread_safety(struct util_slab_mempool *pool,
-                                 enum util_slab_threading threading);
-
-static inline void *
-util_slab_alloc(struct util_slab_mempool *pool)
-{
-   return pool->alloc(pool);
-}
-
-static inline void
-util_slab_free(struct util_slab_mempool *pool, void *ptr)
-{
-   pool->free(pool, ptr);
-}
-
-#endif