diff options
| author | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2010-07-30 09:12:56 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-08-11 01:35:44 +0400 |
| commit | 257d585aaec469ded6ec15d8a8e7ebada21d7277 (patch) | |
| tree | 60d844978302669d6be363ba6eb454b38c575038 /drivers/usb | |
| parent | c06d68b814d556cff5a4dc589215f5ed9f0b7fd5 (diff) | |
| download | linux-257d585aaec469ded6ec15d8a8e7ebada21d7277.tar.xz | |
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')
| -rw-r--r-- | drivers/usb/host/xhci-mem.c | 23 | ||||
| -rw-r--r-- | drivers/usb/host/xhci-ring.c | 22 | ||||
| -rw-r--r-- | drivers/usb/host/xhci.h | 1 |
3 files changed, 23 insertions, 23 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) { diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 7dfd17707d53..f479f73711ac 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -301,28 +301,6 @@ static int room_on_ring(struct xhci_hcd *xhci, struct xhci_ring *ring, return 1; } -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); -} - /* Ring the host controller doorbell after placing a command on the ring */ void xhci_ring_cmd_db(struct xhci_hcd *xhci) { diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 25e108e981fa..34a60d9f056a 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1400,7 +1400,6 @@ struct xhci_segment *trb_in_td(struct xhci_segment *start_seg, int xhci_is_vendor_info_code(struct xhci_hcd *xhci, unsigned int trb_comp_code); void xhci_ring_cmd_db(struct xhci_hcd *xhci); void *xhci_setup_one_noop(struct xhci_hcd *xhci); -void xhci_set_hc_event_deq(struct xhci_hcd *xhci); int xhci_queue_slot_control(struct xhci_hcd *xhci, u32 trb_type, u32 slot_id); int xhci_queue_address_device(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr, u32 slot_id); |