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| author | Suren A. Chilingaryan <csa@suren.me> | 2015-11-20 06:04:08 +0100 |
|---|---|---|
| committer | Suren A. Chilingaryan <csa@suren.me> | 2015-11-20 06:04:08 +0100 |
| commit | 517ecf828e60e1e364c3ab6e67c2acd8a3c1b0c1 (patch) | |
| tree | bc3349f5f682a578050150318f2500a6c8a7a63f /driver | |
| parent | 2bda41263f2464c271509b0bd9ea9062c239d851 (diff) | |
| download | pcitool-517ecf828e60e1e364c3ab6e67c2acd8a3c1b0c1.tar.gz pcitool-517ecf828e60e1e364c3ab6e67c2acd8a3c1b0c1.tar.bz2 pcitool-517ecf828e60e1e364c3ab6e67c2acd8a3c1b0c1.tar.xz pcitool-517ecf828e60e1e364c3ab6e67c2acd8a3c1b0c1.zip | |
Support large DMA pages in IPEDMA
Diffstat (limited to 'driver')
| -rw-r--r-- | driver/kmem.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/driver/kmem.c b/driver/kmem.c index 2c72e38..7539ae6 100644 --- a/driver/kmem.c +++ b/driver/kmem.c @@ -56,7 +56,7 @@ int pcidriver_kmem_alloc(pcidriver_privdata_t *privdata, kmem_handle_t *kmem_han return -EINVAL; } - if ((kmem_handle->type&PCILIB_KMEM_TYPE_MASK) == PCILIB_KMEM_TYPE_PAGE) { + if (((kmem_handle->type&PCILIB_KMEM_TYPE_MASK) == PCILIB_KMEM_TYPE_PAGE)&&(kmem_handle->size == 0)) { kmem_handle->size = kmem_entry->size; } else if (kmem_handle->size != kmem_entry->size) { mod_info("Invalid size of reusable kmem_entry, currently: %lu, but requested: %lu\n", kmem_entry->size, kmem_handle->size); @@ -151,10 +151,12 @@ int pcidriver_kmem_alloc(pcidriver_privdata_t *privdata, kmem_handle_t *kmem_han kmem_handle->size = PAGE_SIZE; else if (kmem_handle->size%PAGE_SIZE) goto kmem_alloc_mem_fail; + else + flags |= __GFP_COMP; retptr = (void*)__get_free_pages(flags, get_order(kmem_handle->size)); kmem_entry->dma_handle = 0; - + if (retptr) { if (kmem_entry->type == PCILIB_KMEM_TYPE_DMA_S2C_PAGE) { kmem_entry->direction = PCI_DMA_TODEVICE; |