From 09e1caeb5f8b52fc704a04dc98c2f8e676c6517e Mon Sep 17 00:00:00 2001
From: Mathias Nyman <mathias.nyman@linux.intel.com>
Subject: [PATCH 2/4] xhci: Add stream id to to xhci_dequeue_state structure
The new dequeue segment, dequeue pointer and cycle state we manually want
the xHC to move ring to are conveniently stored in a xhci_dequeue_state
structure. The Stream support wad added later and stream_id was carried
as a fucntino parameter instead.
Include the stream_id to the xhci_dequeue_state structure instead.
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
---
drivers/usb/host/xhci-ring.c | 10 +++++-----
drivers/usb/host/xhci.c | 2 +-
drivers/usb/host/xhci.h | 2 +-
3 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index d86ead4..cfe9072 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -518,7 +518,7 @@ static u64 xhci_get_hw_deq(struct xhci_hcd *xhci, struct xhci_virt_device *vdev,
/*
* Move the xHC's endpoint ring dequeue pointer past cur_td.
* Record the new state of the xHC's endpoint ring dequeue segment,
- * dequeue pointer, and new consumer cycle state in state.
+ * dequeue pointer, stream id, and new consumer cycle state in state.
* Update our internal representation of the ring's dequeue pointer.
*
* We do this in three jumps:
@@ -564,6 +564,7 @@ void xhci_find_new_dequeue_state(struct xhci_hcd *xhci,
new_seg = ep_ring->deq_seg;
new_deq = ep_ring->dequeue;
state->new_cycle_state = hw_dequeue & 0x1;
+ state->stream_id = stream_id;
/*
* We want to find the pointer, segment and cycle state of the new trb
@@ -808,7 +809,7 @@ static void xhci_handle_cmd_stop_ep(struct xhci_hcd *xhci, int slot_id,
/* If necessary, queue a Set Transfer Ring Dequeue Pointer command */
if (deq_state.new_deq_ptr && deq_state.new_deq_seg) {
xhci_queue_new_dequeue_state(xhci, slot_id, ep_index,
- ep->stopped_td->urb->stream_id, &deq_state);
+ &deq_state);
xhci_ring_cmd_db(xhci);
} else {
/* Otherwise ring the doorbell(s) to restart queued transfers */
@@ -4175,13 +4176,12 @@ int xhci_queue_stop_endpoint(struct xhci_hcd *xhci, struct xhci_command *cmd,
/* Set Transfer Ring Dequeue Pointer command */
void xhci_queue_new_dequeue_state(struct xhci_hcd *xhci,
unsigned int slot_id, unsigned int ep_index,
- unsigned int stream_id,
struct xhci_dequeue_state *deq_state)
{
dma_addr_t addr;
u32 trb_slot_id = SLOT_ID_FOR_TRB(slot_id);
u32 trb_ep_index = EP_ID_FOR_TRB(ep_index);
- u32 trb_stream_id = STREAM_ID_FOR_TRB(stream_id);
+ u32 trb_stream_id = STREAM_ID_FOR_TRB(deq_state->stream_id);
u32 trb_sct = 0;
u32 type = TRB_TYPE(TRB_SET_DEQ);
struct xhci_virt_ep *ep;
@@ -4221,7 +4221,7 @@ void xhci_queue_new_dequeue_state(struct xhci_hcd *xhci,
ep->queued_deq_seg = deq_state->new_deq_seg;
ep->queued_deq_ptr = deq_state->new_deq_ptr;
- if (stream_id)
+ if (deq_state->stream_id)
trb_sct = SCT_FOR_TRB(SCT_PRI_TR);
ret = queue_command(xhci, cmd,
lower_32_bits(addr) | trb_sct | deq_state->new_cycle_state,
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index f2e9f59..9a0892f 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -2940,7 +2940,7 @@ void xhci_cleanup_stalled_ring(struct xhci_hcd *xhci,
xhci_dbg_trace(xhci, trace_xhci_dbg_reset_ep,
"Queueing new dequeue state");
xhci_queue_new_dequeue_state(xhci, udev->slot_id,
- ep_index, ep->stopped_stream, &deq_state);
+ ep_index, &deq_state);
} else {
/* Better hope no one uses the input context between now and the
* reset endpoint completion!
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index fc2ee6c..a2ab28a 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1363,6 +1363,7 @@ struct xhci_dequeue_state {
struct xhci_segment *new_deq_seg;
union xhci_trb *new_deq_ptr;
int new_cycle_state;
+ unsigned int stream_id;
};
enum xhci_ring_type {
@@ -1908,7 +1909,6 @@ void xhci_find_new_dequeue_state(struct xhci_hcd *xhci,
struct xhci_dequeue_state *state);
void xhci_queue_new_dequeue_state(struct xhci_hcd *xhci,
unsigned int slot_id, unsigned int ep_index,
- unsigned int stream_id,
struct xhci_dequeue_state *deq_state);
void xhci_cleanup_stalled_ring(struct xhci_hcd *xhci,
unsigned int ep_index, struct xhci_td *td);