usb: 64-bit architectures support for xHCI

This commit allows xHCI to use both 64 and 32 bit memory
physical addresses depending on architecture it's being built for.
Also it makes use of readq()/writeq() on 64-bit systems

Signed-off-by: Sergey Temerkhanov <s.temerkhanov@gmail.com>
Signed-off-by: Radha Mohan Chintakuntla <rchintakuntla@cavium.com>

1 files changed, 15 insertions, 15 deletions

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index b5aade9..f3759d4 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -122,8 +122,8 @@ static void inc_enq(struct xhci_ctrl *ctrl, struct xhci_ring *ring,
 			next->link.control |= cpu_to_le32(chain);
 
 			next->link.control ^= cpu_to_le32(TRB_CYCLE);
-			xhci_flush_cache((uint32_t)next,
-						sizeof(union xhci_trb));
+			xhci_flush_cache((uintptr_t)next,
+					 sizeof(union xhci_trb));
 		}
 		/* Toggle the cycle bit after the last ring segment. */
 		if (last_trb_on_last_seg(ctrl, ring,
@@ -191,7 +191,7 @@ static struct xhci_generic_trb *queue_trb(struct xhci_ctrl *ctrl,
 	for (i = 0; i < 4; i++)
 		trb->field[i] = cpu_to_le32(trb_fields[i]);
 
-	xhci_flush_cache((uint32_t)trb, sizeof(struct xhci_generic_trb));
+	xhci_flush_cache((uintptr_t)trb, sizeof(struct xhci_generic_trb));
 
 	inc_enq(ctrl, ring, more_trbs_coming);
 
@@ -244,7 +244,7 @@ static int prepare_ring(struct xhci_ctrl *ctrl, struct xhci_ring *ep_ring,
 
 		next->link.control ^= cpu_to_le32(TRB_CYCLE);
 
-		xhci_flush_cache((uint32_t)next, sizeof(union xhci_trb));
+		xhci_flush_cache((uintptr_t)next, sizeof(union xhci_trb));
 
 		/* Toggle the cycle bit after the last ring segment. */
 		if (last_trb_on_last_seg(ctrl, ep_ring,
@@ -364,7 +364,7 @@ static void giveback_first_trb(struct usb_device *udev, int ep_index,
 	else
 		start_trb->field[3] &= cpu_to_le32(~TRB_CYCLE);
 
-	xhci_flush_cache((uint32_t)start_trb, sizeof(struct xhci_generic_trb));
+	xhci_flush_cache((uintptr_t)start_trb, sizeof(struct xhci_generic_trb));
 
 	/* Ringing EP doorbell here */
 	xhci_writel(&ctrl->dba->doorbell[udev->slot_id],
@@ -403,8 +403,8 @@ static int event_ready(struct xhci_ctrl *ctrl)
 {
 	union xhci_trb *event;
 
-	xhci_inval_cache((uint32_t)ctrl->event_ring->dequeue,
-					sizeof(union xhci_trb));
+	xhci_inval_cache((uintptr_t)ctrl->event_ring->dequeue,
+			 sizeof(union xhci_trb));
 
 	event = ctrl->event_ring->dequeue;
 
@@ -576,8 +576,8 @@ int xhci_bulk_tx(struct usb_device *udev, unsigned long pipe,
 	ep_index = usb_pipe_ep_index(pipe);
 	virt_dev = ctrl->devs[slot_id];
 
-	xhci_inval_cache((uint32_t)virt_dev->out_ctx->bytes,
-					virt_dev->out_ctx->size);
+	xhci_inval_cache((uintptr_t)virt_dev->out_ctx->bytes,
+			 virt_dev->out_ctx->size);
 
 	ep_ctx = xhci_get_ep_ctx(ctrl, virt_dev->out_ctx, ep_index);
 
@@ -644,7 +644,7 @@ int xhci_bulk_tx(struct usb_device *udev, unsigned long pipe,
 	first_trb = true;
 
 	/* flush the buffer before use */
-	xhci_flush_cache((uint32_t)buffer, length);
+	xhci_flush_cache((uintptr_t)buffer, length);
 
 	/* Queue the first TRB, even if it's zero-length */
 	do {
@@ -722,7 +722,7 @@ int xhci_bulk_tx(struct usb_device *udev, unsigned long pipe,
 
 	record_transfer_result(udev, event, length);
 	xhci_acknowledge_event(ctrl);
-	xhci_inval_cache((uint32_t)buffer, length);
+	xhci_inval_cache((uintptr_t)buffer, length);
 
 	return (udev->status != USB_ST_NOT_PROC) ? 0 : -1;
 }
@@ -776,8 +776,8 @@ int xhci_ctrl_tx(struct usb_device *udev, unsigned long pipe,
 			return ret;
 	}
 
-	xhci_inval_cache((uint32_t)virt_dev->out_ctx->bytes,
-				virt_dev->out_ctx->size);
+	xhci_inval_cache((uintptr_t)virt_dev->out_ctx->bytes,
+			 virt_dev->out_ctx->size);
 
 	struct xhci_ep_ctx *ep_ctx = NULL;
 	ep_ctx = xhci_get_ep_ctx(ctrl, virt_dev->out_ctx, ep_index);
@@ -874,7 +874,7 @@ int xhci_ctrl_tx(struct usb_device *udev, unsigned long pipe,
 		trb_fields[2] = length_field;
 		trb_fields[3] = field | ep_ring->cycle_state;
 
-		xhci_flush_cache((uint32_t)buffer, length);
+		xhci_flush_cache((uintptr_t)buffer, length);
 		queue_trb(ctrl, ep_ring, true, trb_fields);
 	}
 
@@ -915,7 +915,7 @@ int xhci_ctrl_tx(struct usb_device *udev, unsigned long pipe,
 
 	/* Invalidate buffer to make it available to usb-core */
 	if (length > 0)
-		xhci_inval_cache((uint32_t)buffer, length);
+		xhci_inval_cache((uintptr_t)buffer, length);
 
 	if (GET_COMP_CODE(le32_to_cpu(event->trans_event.transfer_len))
 			== COMP_SHORT_TX) {