/alps/pcitool

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Viewing changes to driver/kmem.c

  • Committer: Suren A. Chilingaryan
  • Date: 2015-11-20 05:04:08 UTC
  • Revision ID: csa@suren.me-20151120050408-jrzier07533vly8f
Support large DMA pages in IPEDMA

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Lines of Context:
driver/kmem.c
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                        return -EINVAL;
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                    }
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                    if ((kmem_handle->type&PCILIB_KMEM_TYPE_MASK) == PCILIB_KMEM_TYPE_PAGE) {
 
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                    if (((kmem_handle->type&PCILIB_KMEM_TYPE_MASK) == PCILIB_KMEM_TYPE_PAGE)&&(kmem_handle->size == 0)) {
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                            kmem_handle->size = kmem_entry->size;
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                    } else if (kmem_handle->size != kmem_entry->size) {
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                        mod_info("Invalid size of reusable kmem_entry, currently: %lu, but requested: %lu\n", kmem_entry->size, kmem_handle->size);
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                kmem_handle->size = PAGE_SIZE;
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            else if (kmem_handle->size%PAGE_SIZE)
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                goto kmem_alloc_mem_fail;
 
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            else 
 
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                flags |= __GFP_COMP;
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            retptr = (void*)__get_free_pages(flags, get_order(kmem_handle->size));
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            kmem_entry->dma_handle = 0;
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            if (retptr) {
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                if (kmem_entry->type == PCILIB_KMEM_TYPE_DMA_S2C_PAGE) {
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                    kmem_entry->direction = PCI_DMA_TODEVICE;