[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH 04/10] xen/swiotlb: Move the nr_tbl determination in its own function.
On Mon, 10 Sep 2012, Konrad Rzeszutek Wilk wrote: > Moving the function out of the way to prepare for the late > SWIOTLB init. > > Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> Acked-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx> > 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 > _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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