diff options
Diffstat (limited to 'sound/core/memalloc.c')
| -rw-r--r-- | sound/core/memalloc.c | 100 |
1 files changed, 21 insertions, 79 deletions
diff --git a/sound/core/memalloc.c b/sound/core/memalloc.c index f5d6d8d1297..1b3534d6768 100644 --- a/sound/core/memalloc.c +++ b/sound/core/memalloc.c @@ -33,9 +33,6 @@ #include <linux/moduleparam.h> #include <linux/mutex.h> #include <sound/memalloc.h> -#ifdef CONFIG_SBUS -#include <asm/sbus.h> -#endif MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>, Jaroslav Kysela <perex@perex.cz>"); @@ -46,14 +43,6 @@ MODULE_LICENSE("GPL"); /* */ -void *snd_malloc_sgbuf_pages(struct device *device, - size_t size, struct snd_dma_buffer *dmab, - size_t *res_size); -int snd_free_sgbuf_pages(struct snd_dma_buffer *dmab); - -/* - */ - static DEFINE_MUTEX(list_mutex); static LIST_HEAD(mem_list_head); @@ -67,18 +56,6 @@ struct snd_mem_list { /* id for pre-allocated buffers */ #define SNDRV_DMA_DEVICE_UNUSED (unsigned int)-1 -#ifdef CONFIG_SND_DEBUG -#define __ASTRING__(x) #x -#define snd_assert(expr, args...) do {\ - if (!(expr)) {\ - printk(KERN_ERR "snd-malloc: BUG? (%s) (called from %p)\n", __ASTRING__(expr), __builtin_return_address(0));\ - args;\ - }\ -} while (0) -#else -#define snd_assert(expr, args...) /**/ -#endif - /* * * Generic memory allocators @@ -111,8 +88,10 @@ void *snd_malloc_pages(size_t size, gfp_t gfp_flags) int pg; void *res; - snd_assert(size > 0, return NULL); - snd_assert(gfp_flags != 0, return NULL); + if (WARN_ON(!size)) + return NULL; + if (WARN_ON(!gfp_flags)) + return NULL; gfp_flags |= __GFP_COMP; /* compound page lets parts be mapped */ pg = get_order(size); if ((res = (void *) __get_free_pages(gfp_flags, pg)) != NULL) @@ -152,8 +131,8 @@ static void *snd_malloc_dev_pages(struct device *dev, size_t size, dma_addr_t *d void *res; gfp_t gfp_flags; - snd_assert(size > 0, return NULL); - snd_assert(dma != NULL, return NULL); + if (WARN_ON(!dma)) + return NULL; pg = get_order(size); gfp_flags = GFP_KERNEL | __GFP_COMP /* compound page lets parts be mapped */ @@ -180,39 +159,6 @@ static void snd_free_dev_pages(struct device *dev, size_t size, void *ptr, } #endif /* CONFIG_HAS_DMA */ -#ifdef CONFIG_SBUS - -static void *snd_malloc_sbus_pages(struct device *dev, size_t size, - dma_addr_t *dma_addr) -{ - struct sbus_dev *sdev = (struct sbus_dev *)dev; - int pg; - void *res; - - snd_assert(size > 0, return NULL); - snd_assert(dma_addr != NULL, return NULL); - pg = get_order(size); - res = sbus_alloc_consistent(sdev, PAGE_SIZE * (1 << pg), dma_addr); - if (res != NULL) - inc_snd_pages(pg); - return res; -} - -static void snd_free_sbus_pages(struct device *dev, size_t size, - void *ptr, dma_addr_t dma_addr) -{ - struct sbus_dev *sdev = (struct sbus_dev *)dev; - int pg; - - if (ptr == NULL) - return; - pg = get_order(size); - dec_snd_pages(pg); - sbus_free_consistent(sdev, PAGE_SIZE * (1 << pg), ptr, dma_addr); -} - -#endif /* CONFIG_SBUS */ - /* * * ALSA generic memory management @@ -236,8 +182,10 @@ static void snd_free_sbus_pages(struct device *dev, size_t size, int snd_dma_alloc_pages(int type, struct device *device, size_t size, struct snd_dma_buffer *dmab) { - snd_assert(size > 0, return -ENXIO); - snd_assert(dmab != NULL, return -ENXIO); + if (WARN_ON(!size)) + return -ENXIO; + if (WARN_ON(!dmab)) + return -ENXIO; dmab->dev.type = type; dmab->dev.dev = device; @@ -247,11 +195,6 @@ int snd_dma_alloc_pages(int type, struct device *device, size_t size, dmab->area = snd_malloc_pages(size, (unsigned long)device); dmab->addr = 0; break; -#ifdef CONFIG_SBUS - case SNDRV_DMA_TYPE_SBUS: - dmab->area = snd_malloc_sbus_pages(device, size, &dmab->addr); - break; -#endif #ifdef CONFIG_HAS_DMA case SNDRV_DMA_TYPE_DEV: dmab->area = snd_malloc_dev_pages(device, size, &dmab->addr); @@ -292,15 +235,17 @@ int snd_dma_alloc_pages_fallback(int type, struct device *device, size_t size, { int err; - snd_assert(size > 0, return -ENXIO); - snd_assert(dmab != NULL, return -ENXIO); - while ((err = snd_dma_alloc_pages(type, device, size, dmab)) < 0) { + size_t aligned_size; if (err != -ENOMEM) return err; - size >>= 1; if (size <= PAGE_SIZE) return -ENOMEM; + aligned_size = PAGE_SIZE << get_order(size); + if (size != aligned_size) + size = aligned_size; + else + size >>= 1; } if (! dmab->area) return -ENOMEM; @@ -320,11 +265,6 @@ void snd_dma_free_pages(struct snd_dma_buffer *dmab) case SNDRV_DMA_TYPE_CONTINUOUS: snd_free_pages(dmab->area, dmab->bytes); break; -#ifdef CONFIG_SBUS - case SNDRV_DMA_TYPE_SBUS: - snd_free_sbus_pages(dmab->dev.dev, dmab->bytes, dmab->area, dmab->addr); - break; -#endif #ifdef CONFIG_HAS_DMA case SNDRV_DMA_TYPE_DEV: snd_free_dev_pages(dmab->dev.dev, dmab->bytes, dmab->area, dmab->addr); @@ -353,7 +293,8 @@ size_t snd_dma_get_reserved_buf(struct snd_dma_buffer *dmab, unsigned int id) { struct snd_mem_list *mem; - snd_assert(dmab, return 0); + if (WARN_ON(!dmab)) + return 0; mutex_lock(&list_mutex); list_for_each_entry(mem, &mem_list_head, list) { @@ -387,7 +328,8 @@ int snd_dma_reserve_buf(struct snd_dma_buffer *dmab, unsigned int id) { struct snd_mem_list *mem; - snd_assert(dmab, return -EINVAL); + if (WARN_ON(!dmab)) + return -EINVAL; mem = kmalloc(sizeof(*mem), GFP_KERNEL); if (! mem) return -ENOMEM; @@ -431,7 +373,7 @@ static int snd_mem_proc_read(struct seq_file *seq, void *offset) long pages = snd_allocated_pages >> (PAGE_SHIFT-12); struct snd_mem_list *mem; int devno; - static char *types[] = { "UNKNOWN", "CONT", "DEV", "DEV-SG", "SBUS" }; + static char *types[] = { "UNKNOWN", "CONT", "DEV", "DEV-SG" }; mutex_lock(&list_mutex); seq_printf(seq, "pages : %li bytes (%li pages per %likB)\n", |