| busdma_machdep-v6.c (314506) | busdma_machdep-v6.c (318976) |
|---|---|
| 1/*- 2 * Copyright (c) 2012-2015 Ian Lepore 3 * Copyright (c) 2010 Mark Tinguely 4 * Copyright (c) 2004 Olivier Houchard 5 * Copyright (c) 2002 Peter Grehan 6 * Copyright (c) 1997, 1998 Justin T. Gibbs. 7 * All rights reserved. 8 * --- 17 unchanged lines hidden (view full) --- 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * From i386/busdma_machdep.c 191438 2009-04-23 20:24:19Z jhb 31 */ 32 33#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 2012-2015 Ian Lepore 3 * Copyright (c) 2010 Mark Tinguely 4 * Copyright (c) 2004 Olivier Houchard 5 * Copyright (c) 2002 Peter Grehan 6 * Copyright (c) 1997, 1998 Justin T. Gibbs. 7 * All rights reserved. 8 * --- 17 unchanged lines hidden (view full) --- 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * From i386/busdma_machdep.c 191438 2009-04-23 20:24:19Z jhb 31 */ 32 33#include <sys/cdefs.h> |
| 34__FBSDID("$FreeBSD: stable/11/sys/arm/arm/busdma_machdep-v6.c 314506 2017-03-01 19:55:04Z ian $"); | 34__FBSDID("$FreeBSD: stable/11/sys/arm/arm/busdma_machdep-v6.c 318976 2017-05-27 07:47:52Z hselasky $"); |
| 35 36#include <sys/param.h> 37#include <sys/systm.h> 38#include <sys/malloc.h> 39#include <sys/bus.h> 40#include <sys/busdma_bufalloc.h> 41#include <sys/counter.h> 42#include <sys/interrupt.h> --- 731 unchanged lines hidden (view full) --- 774 775 /* 776 * Allocate the buffer from the uma(9) allocator if... 777 * - It's small enough to be in the allocator (bufzone not NULL). 778 * - The alignment constraint isn't larger than the allocation size 779 * (the allocator aligns buffers to their size boundaries). 780 * - There's no need to handle lowaddr/highaddr exclusion zones. 781 * else allocate non-contiguous pages if... | 35 36#include <sys/param.h> 37#include <sys/systm.h> 38#include <sys/malloc.h> 39#include <sys/bus.h> 40#include <sys/busdma_bufalloc.h> 41#include <sys/counter.h> 42#include <sys/interrupt.h> --- 731 unchanged lines hidden (view full) --- 774 775 /* 776 * Allocate the buffer from the uma(9) allocator if... 777 * - It's small enough to be in the allocator (bufzone not NULL). 778 * - The alignment constraint isn't larger than the allocation size 779 * (the allocator aligns buffers to their size boundaries). 780 * - There's no need to handle lowaddr/highaddr exclusion zones. 781 * else allocate non-contiguous pages if... |
| 782 * - The page count that could get allocated doesn't exceed nsegments. | 782 * - The page count that could get allocated doesn't exceed 783 * nsegments also when the maximum segment size is less 784 * than PAGE_SIZE. |
| 783 * - The alignment constraint isn't larger than a page boundary. 784 * - There are no boundary-crossing constraints. 785 * else allocate a block of contiguous pages because one or more of the 786 * constraints is something that only the contig allocator can fulfill. 787 */ 788 if (bufzone != NULL && dmat->alignment <= bufzone->size && 789 !exclusion_bounce(dmat)) { 790 *vaddr = uma_zalloc(bufzone->umazone, mflags); | 785 * - The alignment constraint isn't larger than a page boundary. 786 * - There are no boundary-crossing constraints. 787 * else allocate a block of contiguous pages because one or more of the 788 * constraints is something that only the contig allocator can fulfill. 789 */ 790 if (bufzone != NULL && dmat->alignment <= bufzone->size && 791 !exclusion_bounce(dmat)) { 792 *vaddr = uma_zalloc(bufzone->umazone, mflags); |
| 791 } else if (dmat->nsegments >= btoc(dmat->maxsize) && 792 dmat->alignment <= PAGE_SIZE && dmat->boundary == 0) { | 793 } else if (dmat->nsegments >= 794 howmany(dmat->maxsize, MIN(dmat->maxsegsz, PAGE_SIZE)) && 795 dmat->alignment <= PAGE_SIZE && 796 (dmat->boundary % PAGE_SIZE) == 0) { |
| 793 *vaddr = (void *)kmem_alloc_attr(kernel_arena, dmat->maxsize, 794 mflags, 0, dmat->lowaddr, memattr); 795 } else { 796 *vaddr = (void *)kmem_alloc_contig(kernel_arena, dmat->maxsize, 797 mflags, 0, dmat->lowaddr, dmat->alignment, dmat->boundary, 798 memattr); 799 } 800 if (*vaddr == NULL) { --- 893 unchanged lines hidden --- | 797 *vaddr = (void *)kmem_alloc_attr(kernel_arena, dmat->maxsize, 798 mflags, 0, dmat->lowaddr, memattr); 799 } else { 800 *vaddr = (void *)kmem_alloc_contig(kernel_arena, dmat->maxsize, 801 mflags, 0, dmat->lowaddr, dmat->alignment, dmat->boundary, 802 memattr); 803 } 804 if (*vaddr == NULL) { --- 893 unchanged lines hidden --- |