diff options
Diffstat (limited to 'arch/arm/mach-ixp4xx/common-pci.c')
| -rw-r--r-- | arch/arm/mach-ixp4xx/common-pci.c | 23 |
1 files changed, 0 insertions, 23 deletions
diff --git a/arch/arm/mach-ixp4xx/common-pci.c b/arch/arm/mach-ixp4xx/common-pci.c index a54b3db8036..e9a58939572 100644 --- a/arch/arm/mach-ixp4xx/common-pci.c +++ b/arch/arm/mach-ixp4xx/common-pci.c | |||
| @@ -342,29 +342,6 @@ int dma_needs_bounce(struct device *dev, dma_addr_t dma_addr, size_t size) | |||
| 342 | return (dev->bus == &pci_bus_type ) && ((dma_addr + size) >= SZ_64M); | 342 | return (dev->bus == &pci_bus_type ) && ((dma_addr + size) >= SZ_64M); |
| 343 | } | 343 | } |
| 344 | 344 | ||
| 345 | /* | ||
| 346 | * Only first 64MB of memory can be accessed via PCI. | ||
| 347 | * We use GFP_DMA to allocate safe buffers to do map/unmap. | ||
| 348 | * This is really ugly and we need a better way of specifying | ||
| 349 | * DMA-capable regions of memory. | ||
| 350 | */ | ||
| 351 | void __init ixp4xx_adjust_zones(unsigned long *zone_size, | ||
| 352 | unsigned long *zhole_size) | ||
| 353 | { | ||
| 354 | unsigned int sz = SZ_64M >> PAGE_SHIFT; | ||
| 355 | |||
| 356 | /* | ||
| 357 | * Only adjust if > 64M on current system | ||
| 358 | */ | ||
| 359 | if (zone_size[0] <= sz) | ||
| 360 | return; | ||
| 361 | |||
| 362 | zone_size[1] = zone_size[0] - sz; | ||
| 363 | zone_size[0] = sz; | ||
| 364 | zhole_size[1] = zhole_size[0]; | ||
| 365 | zhole_size[0] = 0; | ||
| 366 | } | ||
| 367 | |||
| 368 | void __init ixp4xx_pci_preinit(void) | 345 | void __init ixp4xx_pci_preinit(void) |
| 369 | { | 346 | { |
| 370 | unsigned long cpuid = read_cpuid_id(); | 347 | unsigned long cpuid = read_cpuid_id(); |
