diff options
| author | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2010-07-29 22:12:56 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-08-10 14:35:44 -0700 |
| commit | 257d585aaec469ded6ec15d8a8e7ebada21d7277 (patch) | |
| tree | 60d844978302669d6be363ba6eb454b38c575038 /drivers/usb/host/xhci-mem.c | |
| parent | c06d68b814d556cff5a4dc589215f5ed9f0b7fd5 (diff) | |
USB: xhci: Make xhci_set_hc_event_deq() static.
Now that the event handler functions no longer use xhci_set_hc_event_deq()
to update the event ring dequeue pointer, that function is not used by
anything in xhci-ring.c. Move that function into xhci-mem.c and make it
static.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host/xhci-mem.c')
| -rw-r--r-- | drivers/usb/host/xhci-mem.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index ac57f538f957..4e51343ddffc 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -1601,6 +1601,29 @@ static int xhci_check_trb_in_td_math(struct xhci_hcd *xhci, gfp_t mem_flags) return 0; } +static void xhci_set_hc_event_deq(struct xhci_hcd *xhci) +{ + u64 temp; + dma_addr_t deq; + + deq = xhci_trb_virt_to_dma(xhci->event_ring->deq_seg, + xhci->event_ring->dequeue); + if (deq == 0 && !in_interrupt()) + xhci_warn(xhci, "WARN something wrong with SW event ring " + "dequeue ptr.\n"); + /* Update HC event ring dequeue pointer */ + temp = xhci_read_64(xhci, &xhci->ir_set->erst_dequeue); + temp &= ERST_PTR_MASK; + /* Don't clear the EHB bit (which is RW1C) because + * there might be more events to service. + */ + temp &= ~ERST_EHB; + xhci_dbg(xhci, "// Write event ring dequeue pointer, " + "preserving EHB bit\n"); + xhci_write_64(xhci, ((u64) deq & (u64) ~ERST_PTR_MASK) | temp, + &xhci->ir_set->erst_dequeue); +} + int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) { |