Messages in this thread Patch in this message | | | From | Konrad Rzeszutek Wilk <> | Subject | [PATCH 04/10] xen/swiotlb: Move the nr_tbl determination in its own function. | Date | Mon, 10 Sep 2012 15:46:01 -0400 |
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Moving the function out of the way to prepare for the late SWIOTLB init.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> --- drivers/xen/swiotlb-xen.c | 21 +++++++++++---------- 1 files changed, 11 insertions(+), 10 deletions(-)
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c index 1afb4fb..a2aad6e 100644 --- a/drivers/xen/swiotlb-xen.c +++ b/drivers/xen/swiotlb-xen.c @@ -144,25 +144,26 @@ xen_swiotlb_fixup(void *buf, size_t size, unsigned long nslabs) } while (i < nslabs); return 0; } +static unsigned long xen_set_nslabs(unsigned long nr_tbl) +{ + if (!nr_tbl) { + xen_io_tlb_nslabs = (64 * 1024 * 1024 >> IO_TLB_SHIFT); + xen_io_tlb_nslabs = ALIGN(xen_io_tlb_nslabs, IO_TLB_SEGSIZE); + } else + xen_io_tlb_nslabs = nr_tbl; + return xen_io_tlb_nslabs << IO_TLB_SHIFT; +} void __init xen_swiotlb_init(int verbose) { unsigned long bytes; int rc = -ENOMEM; - unsigned long nr_tbl; char *m = NULL; unsigned int repeat = 3; - nr_tbl = swiotlb_nr_tbl(); - if (nr_tbl) - xen_io_tlb_nslabs = nr_tbl; - else { - xen_io_tlb_nslabs = (64 * 1024 * 1024 >> IO_TLB_SHIFT); - xen_io_tlb_nslabs = ALIGN(xen_io_tlb_nslabs, IO_TLB_SEGSIZE); - } + xen_io_tlb_nslabs = swiotlb_nr_tbl(); retry: - bytes = xen_io_tlb_nslabs << IO_TLB_SHIFT; - + bytes = xen_set_nslabs(xen_io_tlb_nslabs); /* * Get IO TLB memory from any location. */ -- 1.7.7.6
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