diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2013-09-16 17:04:27 +0200 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2013-09-19 11:28:40 +0200 |
| commit | d063c3112c4cd23a479ee18720c2bd119da2d315 (patch) | |
| tree | fd3348bf7caf1b32b4b718bc857419b259636f8b /hw/usb | |
| parent | b5613fdcb0e03d47852582c252942512f050b5b6 (diff) | |
xhci: Fix number of streams allocated when using streams
According to the xhci spec the total number of streams is
2 ^ (MaxPStreams + 1), and this is also how the Linux xhci driver
uses this field.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'hw/usb')
| -rw-r--r-- | hw/usb/hcd-xhci.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c index f02231dc87..69d9144ee8 100644 --- a/hw/usb/hcd-xhci.c +++ b/hw/usb/hcd-xhci.c @@ -1138,7 +1138,7 @@ static void xhci_reset_streams(XHCIEPContext *epctx) static void xhci_alloc_streams(XHCIEPContext *epctx, dma_addr_t base) { assert(epctx->pstreams == NULL); - epctx->nr_pstreams = 2 << epctx->max_pstreams; + epctx->nr_pstreams = 2 << (epctx->max_pstreams + 1); epctx->pstreams = xhci_alloc_stream_contexts(epctx->nr_pstreams, base); } |