Date: Sat, 24 Oct 2015 03:01:47 +0000 (UTC) From: Ian Lepore <ian@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r289865 - head/sys/arm/arm Message-ID: <201510240301.t9O31lFh024031@repo.freebsd.org>
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Author: ian Date: Sat Oct 24 03:01:47 2015 New Revision: 289865 URL: https://svnweb.freebsd.org/changeset/base/289865 Log: A few more whitespace, style, and comment cleanups. No functional changes. Modified: head/sys/arm/arm/busdma_machdep-v6.c Modified: head/sys/arm/arm/busdma_machdep-v6.c ============================================================================== --- head/sys/arm/arm/busdma_machdep-v6.c Sat Oct 24 02:44:13 2015 (r289864) +++ head/sys/arm/arm/busdma_machdep-v6.c Sat Oct 24 03:01:47 2015 (r289865) @@ -1,5 +1,5 @@ /*- - * Copyright (c) 2012-2014 Ian Lepore + * Copyright (c) 2012-2015 Ian Lepore * Copyright (c) 2010 Mark Tinguely * Copyright (c) 2004 Olivier Houchard * Copyright (c) 2002 Peter Grehan @@ -35,9 +35,6 @@ __FBSDID("$FreeBSD$"); #define _ARM32_BUS_DMA_PRIVATE #include <sys/param.h> -#include <sys/kdb.h> -#include <ddb/ddb.h> -#include <ddb/db_output.h> #include <sys/systm.h> #include <sys/malloc.h> #include <sys/bus.h> @@ -740,6 +737,7 @@ bus_dmamap_create(bus_dma_tag_t dmat, in int bus_dmamap_destroy(bus_dma_tag_t dmat, bus_dmamap_t map) { + if (STAILQ_FIRST(&map->bpages) != NULL || map->sync_count != 0) { CTR3(KTR_BUSDMA, "%s: tag %p error %d", __func__, dmat, EBUSY); @@ -756,14 +754,13 @@ bus_dmamap_destroy(bus_dma_tag_t dmat, b return (0); } - /* - * Allocate a piece of memory that can be efficiently mapped into - * bus device space based on the constraints lited in the dma tag. - * A dmamap to for use with dmamap_load is also allocated. + * Allocate a piece of memory that can be efficiently mapped into bus device + * space based on the constraints listed in the dma tag. Returns a pointer to + * the allocated memory, and a pointer to an associated bus_dmamap. */ int -bus_dmamem_alloc(bus_dma_tag_t dmat, void** vaddr, int flags, +bus_dmamem_alloc(bus_dma_tag_t dmat, void **vaddr, int flags, bus_dmamap_t *mapp) { busdma_bufalloc_t ba; @@ -829,8 +826,6 @@ bus_dmamem_alloc(bus_dma_tag_t dmat, voi mflags, 0, dmat->lowaddr, dmat->alignment, dmat->boundary, memattr); } - - if (*vaddr == NULL) { CTR4(KTR_BUSDMA, "%s: tag %p tag flags 0x%x error %d", __func__, dmat, dmat->flags, ENOMEM); @@ -850,8 +845,8 @@ bus_dmamem_alloc(bus_dma_tag_t dmat, voi } /* - * Free a piece of memory and it's allociated dmamap, that was allocated - * via bus_dmamem_alloc. Make the same choice for free/contigfree. + * Free a piece of memory that was allocated via bus_dmamem_alloc, along with + * its associated map. */ void bus_dmamem_free(bus_dma_tag_t dmat, void *vaddr, bus_dmamap_t map) @@ -1075,7 +1070,7 @@ _bus_dmamap_load_phys(bus_dma_tag_t dmat sgsize)) { sgsize = MIN(sgsize, PAGE_SIZE - (curaddr & PAGE_MASK)); curaddr = add_bounce_page(dmat, map, 0, curaddr, - sgsize); + sgsize); } else { if (map->sync_count > 0) sl_end = VM_PAGE_TO_PHYS(sl->pages) + @@ -1187,7 +1182,7 @@ _bus_dmamap_load_buffer(bus_dma_tag_t dm if (map->pagesneeded != 0 && must_bounce(dmat, map, curaddr, sgsize)) { curaddr = add_bounce_page(dmat, map, kvaddr, curaddr, - sgsize); + sgsize); } else { if (map->sync_count > 0) { sl_pend = VM_PAGE_TO_PHYS(sl->pages) +
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