asm/octeon/cvmx-bootmem.h

7  * Copyright (c) 2003-2008 Cavium Networks
14  * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
45 /* Allocate from end of block instead of beginning */
51 /* First bytes of each free physical block of memory contain this structure,
64 	uint64_t size;  member
76 	/* Base address of named block */
79 	 * Size actually allocated for named block (may differ from
82 	uint64_t size;  member
83 	/* name of named block */
122 	/* address of named memory block descriptors */
149  * Allocate a block of memory from the free list that was
151  * address. This is an allocate-only algorithm, so
155  * @size:      Size in bytes of block to allocate
158  * @alignment: Alignment required - must be power of 2
159  * Returns pointer to block of memory, NULL on error
161 extern void *cvmx_bootmem_alloc_address(uint64_t size, uint64_t address,
165  * Frees a previously allocated named bootmem block.
167  * @name:   name of block to free
175  * Allocate a block of memory from the free list that was passed
177  * global named block table.  (part of the cvmx_bootmem_descriptor_t structure)
180  * @size:      Size in bytes of block to allocate
181  * @alignment: Alignment required - must be power of 2
182  * @name:      name of block - must be less than CVMX_BOOTMEM_NAME_LEN bytes
184  * Returns a pointer to block of memory, NULL on error
186 extern void *cvmx_bootmem_alloc_named(uint64_t size, uint64_t alignment,
190  * Allocate a block of memory from a specific range of the free list
192  * a name in the global named block table.  (part of the
197  * @size:      Size in bytes of block to allocate
201  * @name:      name of block - must be less than CVMX_BOOTMEM_NAME_LEN bytes
203  * Returns a pointer to block of memory, NULL on error
205 extern void *cvmx_bootmem_alloc_named_range(uint64_t size, uint64_t min_addr,
210  * Allocate if needed a block of memory from a specific range of the
212  * assign it a name in the global named block table.  (part of the
214  * freed.  If the requested name block is already allocated, return
215  * the pointer to block of memory.  If request cannot be satisfied
218  * @param size   Size in bytes of block to allocate
222  * @param name   name of block - must be less than CVMX_BOOTMEM_NAME_LEN bytes
225  * The initialization function is optional, if omitted the named block
228  * @return pointer to block of memory, NULL on error
230 void *cvmx_bootmem_alloc_named_range_once(uint64_t size,
240  * Finds a named bootmem block by name.
242  * @name:   name of block to free
244  * Returns pointer to named block descriptor on success
250  * Allocates a block of physical memory from the free list, at
253  * @req_size: size of region to allocate.  All requests are rounded up
254  *	      to be a multiple CVMX_BOOTMEM_ALIGNMENT_SIZE bytes size
256  * @address_min: Minimum address that block can occupy.
261  * @alignment: Requested alignment of the block.  If this alignment
271  * Returns physical address of block allocated, or -1 on failure
278  * Allocates a named block of physical memory from the free list, at
281  * @param size	    size of region to allocate.	 All requests are rounded
283  *		    bytes size
284  * @param min_addr Minimum address that block can occupy.
287  * @param alignment Requested alignment of the block.  If this
294  * @param name	    name to assign to named block
297  * @return physical address of block allocated, or -1 on failure
299 int64_t cvmx_bootmem_phy_named_block_alloc(uint64_t size, uint64_t min_addr,
305  * Frees a block to the bootmem allocator list.	 This must
306  * be used with care, as the size provided must match the size
307  * of the block that was allocated, or the list will become
310  * IMPORTANT:  This is only intended to be used as part of named block
314  * @phy_addr: physical address of block
315  * @size:     size of block in bytes.
321 int __cvmx_bootmem_phy_free(uint64_t phy_addr, uint64_t size, uint32_t flags);