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authorGlenn Elliott <gelliott@cs.unc.edu>2012-03-04 19:47:13 -0500
committerGlenn Elliott <gelliott@cs.unc.edu>2012-03-04 19:47:13 -0500
commitc71c03bda1e86c9d5198c5d83f712e695c4f2a1e (patch)
treeecb166cb3e2b7e2adb3b5e292245fefd23381ac8 /drivers/xen/swiotlb-xen.c
parentea53c912f8a86a8567697115b6a0d8152beee5c8 (diff)
parent6a00f206debf8a5c8899055726ad127dbeeed098 (diff)
Merge branch 'mpi-master' into wip-k-fmlpwip-k-fmlp
Conflicts: litmus/sched_cedf.c
Diffstat (limited to 'drivers/xen/swiotlb-xen.c')
-rw-r--r--drivers/xen/swiotlb-xen.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 54469c3eeacd..6e8c15a23201 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -54,7 +54,7 @@ u64 start_dma_addr;
54 54
55static dma_addr_t xen_phys_to_bus(phys_addr_t paddr) 55static dma_addr_t xen_phys_to_bus(phys_addr_t paddr)
56{ 56{
57 return phys_to_machine(XPADDR(paddr)).maddr;; 57 return phys_to_machine(XPADDR(paddr)).maddr;
58} 58}
59 59
60static phys_addr_t xen_bus_to_phys(dma_addr_t baddr) 60static phys_addr_t xen_bus_to_phys(dma_addr_t baddr)
@@ -147,9 +147,15 @@ void __init xen_swiotlb_init(int verbose)
147{ 147{
148 unsigned long bytes; 148 unsigned long bytes;
149 int rc; 149 int rc;
150 150 unsigned long nr_tbl;
151 xen_io_tlb_nslabs = (64 * 1024 * 1024 >> IO_TLB_SHIFT); 151
152 xen_io_tlb_nslabs = ALIGN(xen_io_tlb_nslabs, IO_TLB_SEGSIZE); 152 nr_tbl = swioltb_nr_tbl();
153 if (nr_tbl)
154 xen_io_tlb_nslabs = nr_tbl;
155 else {
156 xen_io_tlb_nslabs = (64 * 1024 * 1024 >> IO_TLB_SHIFT);
157 xen_io_tlb_nslabs = ALIGN(xen_io_tlb_nslabs, IO_TLB_SEGSIZE);
158 }
153 159
154 bytes = xen_io_tlb_nslabs << IO_TLB_SHIFT; 160 bytes = xen_io_tlb_nslabs << IO_TLB_SHIFT;
155 161