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authorTakashi Iwai <tiwai@suse.de>2014-10-22 12:01:13 +0200
committerTakashi Iwai <tiwai@suse.de>2014-10-22 12:01:13 +0200
commitc37de55efa1ccf018c27b876560725ff5e9f5701 (patch)
tree9889ff7cf9755e1184be0c01e4b20b0669de3346 /sound/core
parentb46882b6eb713245916100ac5b58664cd242a08d (diff)
ALSA: pcm: Remove arch-dependent mmap kludges
Since we have consistently dma_mmap_coherent() for all architectures, the current ifdef and arch-specific codes in pcm core can be cleaned up gracefully. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core')
-rw-r--r--sound/core/pcm_native.c30
1 files changed, 0 insertions, 30 deletions
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 815396d8427f..aa6754da7929 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -35,9 +35,6 @@
#include <sound/timer.h>
#include <sound/minors.h>
#include <asm/io.h>
-#if defined(CONFIG_MIPS) && defined(CONFIG_DMA_NONCOHERENT)
-#include <dma-coherence.h>
-#endif
/*
* Compatibility
@@ -3251,20 +3248,6 @@ static inline struct page *
snd_pcm_default_page_ops(struct snd_pcm_substream *substream, unsigned long ofs)
{
void *vaddr = substream->runtime->dma_area + ofs;
-#if defined(CONFIG_MIPS) && defined(CONFIG_DMA_NONCOHERENT)
- if (substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV)
- return virt_to_page(CAC_ADDR(vaddr));
-#endif
-#if defined(CONFIG_PPC32) && defined(CONFIG_NOT_COHERENT_CACHE)
- if (substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV) {
- dma_addr_t addr = substream->runtime->dma_addr + ofs;
- addr -= get_dma_offset(substream->dma_buffer.dev.dev);
- /* assume dma_handle set via pfn_to_phys() in
- * mm/dma-noncoherent.c
- */
- return pfn_to_page(addr >> PAGE_SHIFT);
- }
-#endif
return virt_to_page(vaddr);
}
@@ -3309,13 +3292,6 @@ static const struct vm_operations_struct snd_pcm_vm_ops_data_fault = {
.fault = snd_pcm_mmap_data_fault,
};
-#ifndef ARCH_HAS_DMA_MMAP_COHERENT
-/* This should be defined / handled globally! */
-#if defined(CONFIG_ARM) || defined(CONFIG_ARM64)
-#define ARCH_HAS_DMA_MMAP_COHERENT
-#endif
-#endif
-
/*
* mmap the DMA buffer on RAM
*/
@@ -3331,7 +3307,6 @@ int snd_pcm_lib_default_mmap(struct snd_pcm_substream *substream,
area->vm_end - area->vm_start, area->vm_page_prot);
}
#endif /* CONFIG_GENERIC_ALLOCATOR */
-#ifdef ARCH_HAS_DMA_MMAP_COHERENT
if (!substream->ops->page &&
substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV)
return dma_mmap_coherent(substream->dma_buffer.dev.dev,
@@ -3339,11 +3314,6 @@ int snd_pcm_lib_default_mmap(struct snd_pcm_substream *substream,
substream->runtime->dma_area,
substream->runtime->dma_addr,
area->vm_end - area->vm_start);
-#elif defined(CONFIG_MIPS) && defined(CONFIG_DMA_NONCOHERENT)
- if (substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV &&
- !plat_device_is_coherent(substream->dma_buffer.dev.dev))
- area->vm_page_prot = pgprot_noncached(area->vm_page_prot);
-#endif /* ARCH_HAS_DMA_MMAP_COHERENT */
/* mmap with fault handler */
area->vm_ops = &snd_pcm_vm_ops_data_fault;
return 0;

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