luck/tmp_suning_uos_patched
1
0
Fork 1
Code Issues Pull Requests Packages Projects Releases Wiki Activity

tile: uninline dma_set_mask

Browse Source 
We'll soon merge <asm-generic/dma-mapping-common.h> into
<linux/dma-mapping.h> and the reference to dma_capable in the tile
dma_set_mask would create a circular dependency.

Fix this by moving the implementation out of line.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Joerg Roedel <jroedel@suse.de>
Cc: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Christoph Hellwig 2016-01-20 15:02:02 -08:00 committed by Linus Torvalds
parent 30081d8ea4
commit bd38118f9c
2 changed files with 30 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
arch/tile/include/asm/dma-mapping.h
View File

@ -76,34 +76,7 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
#include <asm-generic/dma-mapping-common.h>
static inline int
dma_set_mask(struct device *dev, u64 mask)
{
struct dma_map_ops *dma_ops = get_dma_ops(dev);
/*
* For PCI devices with 64-bit DMA addressing capability, promote
* the dma_ops to hybrid, with the consistent memory DMA space limited
* to 32-bit. For 32-bit capable devices, limit the streaming DMA
* address range to max_direct_dma_addr.
*/
if (dma_ops == gx_pci_dma_map_ops ||
dma_ops == gx_hybrid_pci_dma_map_ops ||
dma_ops == gx_legacy_pci_dma_map_ops) {
if (mask == DMA_BIT_MASK(64) &&
dma_ops == gx_legacy_pci_dma_map_ops)
set_dma_ops(dev, gx_hybrid_pci_dma_map_ops);
else if (mask > dev->archdata.max_direct_dma_addr)
mask = dev->archdata.max_direct_dma_addr;
}
if (!dev->dma_mask || !dma_supported(dev, mask))
return -EIO;
*dev->dma_mask = mask;
return 0;
}
int dma_set_mask(struct device *dev, u64 mask);
/*
* dma_alloc_noncoherent() is #defined to return coherent memory,

29
arch/tile/kernel/pci-dma.c
View File

@ -583,6 +583,35 @@ struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
EXPORT_SYMBOL(gx_legacy_pci_dma_map_ops);
EXPORT_SYMBOL(gx_hybrid_pci_dma_map_ops);
int dma_set_mask(struct device *dev, u64 mask)
{
struct dma_map_ops *dma_ops = get_dma_ops(dev);
/*
* For PCI devices with 64-bit DMA addressing capability, promote
* the dma_ops to hybrid, with the consistent memory DMA space limited
* to 32-bit. For 32-bit capable devices, limit the streaming DMA
* address range to max_direct_dma_addr.
*/
if (dma_ops == gx_pci_dma_map_ops ||
dma_ops == gx_hybrid_pci_dma_map_ops ||
dma_ops == gx_legacy_pci_dma_map_ops) {
if (mask == DMA_BIT_MASK(64) &&
dma_ops == gx_legacy_pci_dma_map_ops)
set_dma_ops(dev, gx_hybrid_pci_dma_map_ops);
else if (mask > dev->archdata.max_direct_dma_addr)
mask = dev->archdata.max_direct_dma_addr;
}
if (!dev->dma_mask || !dma_supported(dev, mask))
return -EIO;
*dev->dma_mask = mask;
return 0;
}
EXPORT_SYMBOL(dma_set_mask);
#ifdef CONFIG_ARCH_HAS_DMA_SET_COHERENT_MASK
int dma_set_coherent_mask(struct device *dev, u64 mask)
{