10 files changed, 364 insertions, 57 deletions

diff --git a/arch/tile/gxio/Kconfig b/arch/tile/gxio/Kconfig
index d221f8d6de8..d4e10d58071 100644
--- a/arch/tile/gxio/Kconfig
+++ b/arch/tile/gxio/Kconfig
@@ -26,3 +26,8 @@ config TILE_GXIO_TRIO
 config TILE_GXIO_USB_HOST
 	bool
 	select TILE_GXIO
+
+# Support direct access to the TILE-Gx UART hardware from kernel space.
+config TILE_GXIO_UART
+	bool
+	select TILE_GXIO
diff --git a/arch/tile/gxio/Makefile b/arch/tile/gxio/Makefile
index 8684bcaa74e..26ae2c72746 100644
--- a/arch/tile/gxio/Makefile
+++ b/arch/tile/gxio/Makefile
@@ -6,4 +6,5 @@ obj-$(CONFIG_TILE_GXIO) += iorpc_globals.o kiorpc.o
 obj-$(CONFIG_TILE_GXIO_DMA) += dma_queue.o
 obj-$(CONFIG_TILE_GXIO_MPIPE) += mpipe.o iorpc_mpipe.o iorpc_mpipe_info.o
 obj-$(CONFIG_TILE_GXIO_TRIO) += trio.o iorpc_trio.o
+obj-$(CONFIG_TILE_GXIO_UART) += uart.o iorpc_uart.o
 obj-$(CONFIG_TILE_GXIO_USB_HOST) += usb_host.o iorpc_usb_host.o
diff --git a/arch/tile/gxio/iorpc_mpipe.c b/arch/tile/gxio/iorpc_mpipe.c
index 31b87bf8c02..e19325c4c43 100644
--- a/arch/tile/gxio/iorpc_mpipe.c
+++ b/arch/tile/gxio/iorpc_mpipe.c
@@ -21,7 +21,7 @@ struct alloc_buffer_stacks_param {
 	unsigned int flags;
 };
 
-int gxio_mpipe_alloc_buffer_stacks(gxio_mpipe_context_t * context,
+int gxio_mpipe_alloc_buffer_stacks(gxio_mpipe_context_t *context,
 				   unsigned int count, unsigned int first,
 				   unsigned int flags)
 {
@@ -45,7 +45,7 @@ struct init_buffer_stack_aux_param {
 	unsigned int buffer_size_enum;
 };
 
-int gxio_mpipe_init_buffer_stack_aux(gxio_mpipe_context_t * context,
+int gxio_mpipe_init_buffer_stack_aux(gxio_mpipe_context_t *context,
 				     void *mem_va, size_t mem_size,
 				     unsigned int mem_flags, unsigned int stack,
 				     unsigned int buffer_size_enum)
@@ -80,7 +80,7 @@ struct alloc_notif_rings_param {
 	unsigned int flags;
 };
 
-int gxio_mpipe_alloc_notif_rings(gxio_mpipe_context_t * context,
+int gxio_mpipe_alloc_notif_rings(gxio_mpipe_context_t *context,
 				 unsigned int count, unsigned int first,
 				 unsigned int flags)
 {
@@ -102,7 +102,7 @@ struct init_notif_ring_aux_param {
 	unsigned int ring;
 };
 
-int gxio_mpipe_init_notif_ring_aux(gxio_mpipe_context_t * context, void *mem_va,
+int gxio_mpipe_init_notif_ring_aux(gxio_mpipe_context_t *context, void *mem_va,
 				   size_t mem_size, unsigned int mem_flags,
 				   unsigned int ring)
 {
@@ -133,7 +133,7 @@ struct request_notif_ring_interrupt_param {
 	unsigned int ring;
 };
 
-int gxio_mpipe_request_notif_ring_interrupt(gxio_mpipe_context_t * context,
+int gxio_mpipe_request_notif_ring_interrupt(gxio_mpipe_context_t *context,
 					    int inter_x, int inter_y,
 					    int inter_ipi, int inter_event,
 					    unsigned int ring)
@@ -158,7 +158,7 @@ struct enable_notif_ring_interrupt_param {
 	unsigned int ring;
 };
 
-int gxio_mpipe_enable_notif_ring_interrupt(gxio_mpipe_context_t * context,
+int gxio_mpipe_enable_notif_ring_interrupt(gxio_mpipe_context_t *context,
 					   unsigned int ring)
 {
 	struct enable_notif_ring_interrupt_param temp;
@@ -179,7 +179,7 @@ struct alloc_notif_groups_param {
 	unsigned int flags;
 };
 
-int gxio_mpipe_alloc_notif_groups(gxio_mpipe_context_t * context,
+int gxio_mpipe_alloc_notif_groups(gxio_mpipe_context_t *context,
 				  unsigned int count, unsigned int first,
 				  unsigned int flags)
 {
@@ -201,7 +201,7 @@ struct init_notif_group_param {
 	gxio_mpipe_notif_group_bits_t bits;
 };
 
-int gxio_mpipe_init_notif_group(gxio_mpipe_context_t * context,
+int gxio_mpipe_init_notif_group(gxio_mpipe_context_t *context,
 				unsigned int group,
 				gxio_mpipe_notif_group_bits_t bits)
 {
@@ -223,7 +223,7 @@ struct alloc_buckets_param {
 	unsigned int flags;
 };
 
-int gxio_mpipe_alloc_buckets(gxio_mpipe_context_t * context, unsigned int count,
+int gxio_mpipe_alloc_buckets(gxio_mpipe_context_t *context, unsigned int count,
 			     unsigned int first, unsigned int flags)
 {
 	struct alloc_buckets_param temp;
@@ -244,7 +244,7 @@ struct init_bucket_param {
 	MPIPE_LBL_INIT_DAT_BSTS_TBL_t bucket_info;
 };
 
-int gxio_mpipe_init_bucket(gxio_mpipe_context_t * context, unsigned int bucket,
+int gxio_mpipe_init_bucket(gxio_mpipe_context_t *context, unsigned int bucket,
 			   MPIPE_LBL_INIT_DAT_BSTS_TBL_t bucket_info)
 {
 	struct init_bucket_param temp;
@@ -265,7 +265,7 @@ struct alloc_edma_rings_param {
 	unsigned int flags;
 };
 
-int gxio_mpipe_alloc_edma_rings(gxio_mpipe_context_t * context,
+int gxio_mpipe_alloc_edma_rings(gxio_mpipe_context_t *context,
 				unsigned int count, unsigned int first,
 				unsigned int flags)
 {
@@ -288,7 +288,7 @@ struct init_edma_ring_aux_param {
 	unsigned int channel;
 };
 
-int gxio_mpipe_init_edma_ring_aux(gxio_mpipe_context_t * context, void *mem_va,
+int gxio_mpipe_init_edma_ring_aux(gxio_mpipe_context_t *context, void *mem_va,
 				  size_t mem_size, unsigned int mem_flags,
 				  unsigned int ring, unsigned int channel)
 {
@@ -315,7 +315,7 @@ int gxio_mpipe_init_edma_ring_aux(gxio_mpipe_context_t * context, void *mem_va,
 EXPORT_SYMBOL(gxio_mpipe_init_edma_ring_aux);
 
 
-int gxio_mpipe_commit_rules(gxio_mpipe_context_t * context, const void *blob,
+int gxio_mpipe_commit_rules(gxio_mpipe_context_t *context, const void *blob,
 			    size_t blob_size)
 {
 	const void *params = blob;
@@ -332,7 +332,7 @@ struct register_client_memory_param {
 	unsigned int flags;
 };
 
-int gxio_mpipe_register_client_memory(gxio_mpipe_context_t * context,
+int gxio_mpipe_register_client_memory(gxio_mpipe_context_t *context,
 				      unsigned int iotlb, HV_PTE pte,
 				      unsigned int flags)
 {
@@ -355,7 +355,7 @@ struct link_open_aux_param {
 	unsigned int flags;
 };
 
-int gxio_mpipe_link_open_aux(gxio_mpipe_context_t * context,
+int gxio_mpipe_link_open_aux(gxio_mpipe_context_t *context,
 			     _gxio_mpipe_link_name_t name, unsigned int flags)
 {
 	struct link_open_aux_param temp;
@@ -374,7 +374,7 @@ struct link_close_aux_param {
 	int mac;
 };
 
-int gxio_mpipe_link_close_aux(gxio_mpipe_context_t * context, int mac)
+int gxio_mpipe_link_close_aux(gxio_mpipe_context_t *context, int mac)
 {
 	struct link_close_aux_param temp;
 	struct link_close_aux_param *params = &temp;
@@ -387,6 +387,27 @@ int gxio_mpipe_link_close_aux(gxio_mpipe_context_t * context, int mac)
 
 EXPORT_SYMBOL(gxio_mpipe_link_close_aux);
 
+struct link_set_attr_aux_param {
+	int mac;
+	uint32_t attr;
+	int64_t val;
+};
+
+int gxio_mpipe_link_set_attr_aux(gxio_mpipe_context_t *context, int mac,
+				 uint32_t attr, int64_t val)
+{
+	struct link_set_attr_aux_param temp;
+	struct link_set_attr_aux_param *params = &temp;
+
+	params->mac = mac;
+	params->attr = attr;
+	params->val = val;
+
+	return hv_dev_pwrite(context->fd, 0, (HV_VirtAddr) params,
+			     sizeof(*params), GXIO_MPIPE_OP_LINK_SET_ATTR_AUX);
+}
+
+EXPORT_SYMBOL(gxio_mpipe_link_set_attr_aux);
 
 struct get_timestamp_aux_param {
 	uint64_t sec;
@@ -394,8 +415,8 @@ struct get_timestamp_aux_param {
 	uint64_t cycles;
 };
 
-int gxio_mpipe_get_timestamp_aux(gxio_mpipe_context_t * context, uint64_t * sec,
-				 uint64_t * nsec, uint64_t * cycles)
+int gxio_mpipe_get_timestamp_aux(gxio_mpipe_context_t *context, uint64_t *sec,
+				 uint64_t *nsec, uint64_t *cycles)
 {
 	int __result;
 	struct get_timestamp_aux_param temp;
@@ -419,7 +440,7 @@ struct set_timestamp_aux_param {
 	uint64_t cycles;
 };
 
-int gxio_mpipe_set_timestamp_aux(gxio_mpipe_context_t * context, uint64_t sec,
+int gxio_mpipe_set_timestamp_aux(gxio_mpipe_context_t *context, uint64_t sec,
 				 uint64_t nsec, uint64_t cycles)
 {
 	struct set_timestamp_aux_param temp;
@@ -439,8 +460,7 @@ struct adjust_timestamp_aux_param {
 	int64_t nsec;
 };
 
-int gxio_mpipe_adjust_timestamp_aux(gxio_mpipe_context_t * context,
-				    int64_t nsec)
+int gxio_mpipe_adjust_timestamp_aux(gxio_mpipe_context_t *context, int64_t nsec)
 {
 	struct adjust_timestamp_aux_param temp;
 	struct adjust_timestamp_aux_param *params = &temp;
@@ -454,11 +474,55 @@ int gxio_mpipe_adjust_timestamp_aux(gxio_mpipe_context_t * context,
 
 EXPORT_SYMBOL(gxio_mpipe_adjust_timestamp_aux);
 
+struct config_edma_ring_blks_param {
+	unsigned int ering;
+	unsigned int max_blks;
+	unsigned int min_snf_blks;
+	unsigned int db;
+};
+
+int gxio_mpipe_config_edma_ring_blks(gxio_mpipe_context_t *context,
+				     unsigned int ering, unsigned int max_blks,
+				     unsigned int min_snf_blks, unsigned int db)
+{
+	struct config_edma_ring_blks_param temp;
+	struct config_edma_ring_blks_param *params = &temp;
+
+	params->ering = ering;
+	params->max_blks = max_blks;
+	params->min_snf_blks = min_snf_blks;
+	params->db = db;
+
+	return hv_dev_pwrite(context->fd, 0, (HV_VirtAddr) params,
+			     sizeof(*params),
+			     GXIO_MPIPE_OP_CONFIG_EDMA_RING_BLKS);
+}
+
+EXPORT_SYMBOL(gxio_mpipe_config_edma_ring_blks);
+
+struct adjust_timestamp_freq_param {
+	int32_t ppb;
+};
+
+int gxio_mpipe_adjust_timestamp_freq(gxio_mpipe_context_t *context, int32_t ppb)
+{
+	struct adjust_timestamp_freq_param temp;
+	struct adjust_timestamp_freq_param *params = &temp;
+
+	params->ppb = ppb;
+
+	return hv_dev_pwrite(context->fd, 0, (HV_VirtAddr) params,
+			     sizeof(*params),
+			     GXIO_MPIPE_OP_ADJUST_TIMESTAMP_FREQ);
+}
+
+EXPORT_SYMBOL(gxio_mpipe_adjust_timestamp_freq);
+
 struct arm_pollfd_param {
 	union iorpc_pollfd pollfd;
 };
 
-int gxio_mpipe_arm_pollfd(gxio_mpipe_context_t * context, int pollfd_cookie)
+int gxio_mpipe_arm_pollfd(gxio_mpipe_context_t *context, int pollfd_cookie)
 {
 	struct arm_pollfd_param temp;
 	struct arm_pollfd_param *params = &temp;
@@ -475,7 +539,7 @@ struct close_pollfd_param {
 	union iorpc_pollfd pollfd;
 };
 
-int gxio_mpipe_close_pollfd(gxio_mpipe_context_t * context, int pollfd_cookie)
+int gxio_mpipe_close_pollfd(gxio_mpipe_context_t *context, int pollfd_cookie)
 {
 	struct close_pollfd_param temp;
 	struct close_pollfd_param *params = &temp;
@@ -492,7 +556,7 @@ struct get_mmio_base_param {
 	HV_PTE base;
 };
 
-int gxio_mpipe_get_mmio_base(gxio_mpipe_context_t * context, HV_PTE *base)
+int gxio_mpipe_get_mmio_base(gxio_mpipe_context_t *context, HV_PTE *base)
 {
 	int __result;
 	struct get_mmio_base_param temp;
@@ -513,7 +577,7 @@ struct check_mmio_offset_param {
 	unsigned long size;
 };
 
-int gxio_mpipe_check_mmio_offset(gxio_mpipe_context_t * context,
+int gxio_mpipe_check_mmio_offset(gxio_mpipe_context_t *context,
 				 unsigned long offset, unsigned long size)
 {
 	struct check_mmio_offset_param temp;
diff --git a/arch/tile/gxio/iorpc_mpipe_info.c b/arch/tile/gxio/iorpc_mpipe_info.c
index d0254aa60cb..77019c6e9b4 100644
--- a/arch/tile/gxio/iorpc_mpipe_info.c
+++ b/arch/tile/gxio/iorpc_mpipe_info.c
@@ -15,16 +15,33 @@
 /* This file is machine-generated; DO NOT EDIT! */
 #include "gxio/iorpc_mpipe_info.h"
 
+struct instance_aux_param {
+	_gxio_mpipe_link_name_t name;
+};
+
+int gxio_mpipe_info_instance_aux(gxio_mpipe_info_context_t *context,
+				 _gxio_mpipe_link_name_t name)
+{
+	struct instance_aux_param temp;
+	struct instance_aux_param *params = &temp;
+
+	params->name = name;
+
+	return hv_dev_pwrite(context->fd, 0, (HV_VirtAddr) params,
+			     sizeof(*params), GXIO_MPIPE_INFO_OP_INSTANCE_AUX);
+}
+
+EXPORT_SYMBOL(gxio_mpipe_info_instance_aux);
 
 struct enumerate_aux_param {
 	_gxio_mpipe_link_name_t name;
 	_gxio_mpipe_link_mac_t mac;
 };
 
-int gxio_mpipe_info_enumerate_aux(gxio_mpipe_info_context_t * context,
+int gxio_mpipe_info_enumerate_aux(gxio_mpipe_info_context_t *context,
 				  unsigned int idx,
-				  _gxio_mpipe_link_name_t * name,
-				  _gxio_mpipe_link_mac_t * mac)
+				  _gxio_mpipe_link_name_t *name,
+				  _gxio_mpipe_link_mac_t *mac)
 {
 	int __result;
 	struct enumerate_aux_param temp;
@@ -32,7 +49,7 @@ int gxio_mpipe_info_enumerate_aux(gxio_mpipe_info_context_t * context,
 
 	__result =
 	    hv_dev_pread(context->fd, 0, (HV_VirtAddr) params, sizeof(*params),
-			 (((uint64_t) idx << 32) |
+			 (((uint64_t)idx << 32) |
 			  GXIO_MPIPE_INFO_OP_ENUMERATE_AUX));
 	*name = params->name;
 	*mac = params->mac;
@@ -46,7 +63,7 @@ struct get_mmio_base_param {
 	HV_PTE base;
 };
 
-int gxio_mpipe_info_get_mmio_base(gxio_mpipe_info_context_t * context,
+int gxio_mpipe_info_get_mmio_base(gxio_mpipe_info_context_t *context,
 				  HV_PTE *base)
 {
 	int __result;
@@ -68,7 +85,7 @@ struct check_mmio_offset_param {
 	unsigned long size;
 };
 
-int gxio_mpipe_info_check_mmio_offset(gxio_mpipe_info_context_t * context,
+int gxio_mpipe_info_check_mmio_offset(gxio_mpipe_info_context_t *context,
 				      unsigned long offset, unsigned long size)
 {
 	struct check_mmio_offset_param temp;
diff --git a/arch/tile/gxio/iorpc_trio.c b/arch/tile/gxio/iorpc_trio.c
index cef4b2209cd..1d3cedb9aeb 100644
--- a/arch/tile/gxio/iorpc_trio.c
+++ b/arch/tile/gxio/iorpc_trio.c
@@ -21,7 +21,7 @@ struct alloc_asids_param {
 	unsigned int flags;
 };
 
-int gxio_trio_alloc_asids(gxio_trio_context_t * context, unsigned int count,
+int gxio_trio_alloc_asids(gxio_trio_context_t *context, unsigned int count,
 			  unsigned int first, unsigned int flags)
 {
 	struct alloc_asids_param temp;
@@ -44,7 +44,7 @@ struct alloc_memory_maps_param {
 	unsigned int flags;
 };
 
-int gxio_trio_alloc_memory_maps(gxio_trio_context_t * context,
+int gxio_trio_alloc_memory_maps(gxio_trio_context_t *context,
 				unsigned int count, unsigned int first,
 				unsigned int flags)
 {
@@ -61,6 +61,29 @@ int gxio_trio_alloc_memory_maps(gxio_trio_context_t * context,
 
 EXPORT_SYMBOL(gxio_trio_alloc_memory_maps);
 
+struct alloc_scatter_queues_param {
+	unsigned int count;
+	unsigned int first;
+	unsigned int flags;
+};
+
+int gxio_trio_alloc_scatter_queues(gxio_trio_context_t *context,
+				   unsigned int count, unsigned int first,
+				   unsigned int flags)
+{
+	struct alloc_scatter_queues_param temp;
+	struct alloc_scatter_queues_param *params = &temp;
+
+	params->count = count;
+	params->first = first;
+	params->flags = flags;
+
+	return hv_dev_pwrite(context->fd, 0, (HV_VirtAddr) params,
+			     sizeof(*params),
+			     GXIO_TRIO_OP_ALLOC_SCATTER_QUEUES);
+}
+
+EXPORT_SYMBOL(gxio_trio_alloc_scatter_queues);
 
 struct alloc_pio_regions_param {
 	unsigned int count;
@@ -68,7 +91,7 @@ struct alloc_pio_regions_param {
 	unsigned int flags;
 };
 
-int gxio_trio_alloc_pio_regions(gxio_trio_context_t * context,
+int gxio_trio_alloc_pio_regions(gxio_trio_context_t *context,
 				unsigned int count, unsigned int first,
 				unsigned int flags)
 {
@@ -92,7 +115,7 @@ struct init_pio_region_aux_param {
 	unsigned int flags;
 };
 
-int gxio_trio_init_pio_region_aux(gxio_trio_context_t * context,
+int gxio_trio_init_pio_region_aux(gxio_trio_context_t *context,
 				  unsigned int pio_region, unsigned int mac,
 				  uint32_t bus_address_hi, unsigned int flags)
 {
@@ -122,7 +145,7 @@ struct init_memory_map_mmu_aux_param {
 	unsigned int order_mode;
 };
 
-int gxio_trio_init_memory_map_mmu_aux(gxio_trio_context_t * context,
+int gxio_trio_init_memory_map_mmu_aux(gxio_trio_context_t *context,
 				      unsigned int map, unsigned long va,
 				      uint64_t size, unsigned int asid,
 				      unsigned int mac, uint64_t bus_address,
@@ -152,7 +175,7 @@ struct get_port_property_param {
 	struct pcie_trio_ports_property trio_ports;
 };
 
-int gxio_trio_get_port_property(gxio_trio_context_t * context,
+int gxio_trio_get_port_property(gxio_trio_context_t *context,
 				struct pcie_trio_ports_property *trio_ports)
 {
 	int __result;
@@ -175,7 +198,7 @@ struct config_legacy_intr_param {
 	unsigned int intx;
 };
 
-int gxio_trio_config_legacy_intr(gxio_trio_context_t * context, int inter_x,
+int gxio_trio_config_legacy_intr(gxio_trio_context_t *context, int inter_x,
 				 int inter_y, int inter_ipi, int inter_event,
 				 unsigned int mac, unsigned int intx)
 {
@@ -204,7 +227,7 @@ struct config_msi_intr_param {
 	unsigned int asid;
 };
 
-int gxio_trio_config_msi_intr(gxio_trio_context_t * context, int inter_x,
+int gxio_trio_config_msi_intr(gxio_trio_context_t *context, int inter_x,
 			      int inter_y, int inter_ipi, int inter_event,
 			      unsigned int mac, unsigned int mem_map,
 			      uint64_t mem_map_base, uint64_t mem_map_limit,
@@ -236,7 +259,7 @@ struct set_mps_mrs_param {
 	unsigned int mac;
 };
 
-int gxio_trio_set_mps_mrs(gxio_trio_context_t * context, uint16_t mps,
+int gxio_trio_set_mps_mrs(gxio_trio_context_t *context, uint16_t mps,
 			  uint16_t mrs, unsigned int mac)
 {
 	struct set_mps_mrs_param temp;
@@ -256,7 +279,7 @@ struct force_rc_link_up_param {
 	unsigned int mac;
 };
 
-int gxio_trio_force_rc_link_up(gxio_trio_context_t * context, unsigned int mac)
+int gxio_trio_force_rc_link_up(gxio_trio_context_t *context, unsigned int mac)
 {
 	struct force_rc_link_up_param temp;
 	struct force_rc_link_up_param *params = &temp;
@@ -273,7 +296,7 @@ struct force_ep_link_up_param {
 	unsigned int mac;
 };
 
-int gxio_trio_force_ep_link_up(gxio_trio_context_t * context, unsigned int mac)
+int gxio_trio_force_ep_link_up(gxio_trio_context_t *context, unsigned int mac)
 {
 	struct force_ep_link_up_param temp;
 	struct force_ep_link_up_param *params = &temp;
@@ -290,7 +313,7 @@ struct get_mmio_base_param {
 	HV_PTE base;
 };
 
-int gxio_trio_get_mmio_base(gxio_trio_context_t * context, HV_PTE *base)
+int gxio_trio_get_mmio_base(gxio_trio_context_t *context, HV_PTE *base)
 {
 	int __result;
 	struct get_mmio_base_param temp;
@@ -311,7 +334,7 @@ struct check_mmio_offset_param {
 	unsigned long size;
 };
 
-int gxio_trio_check_mmio_offset(gxio_trio_context_t * context,
+int gxio_trio_check_mmio_offset(gxio_trio_context_t *context,
 				unsigned long offset, unsigned long size)
 {
 	struct check_mmio_offset_param temp;
diff --git a/arch/tile/gxio/iorpc_uart.c b/arch/tile/gxio/iorpc_uart.c
new file mode 100644
index 00000000000..b9a6d6193d7
--- /dev/null
+++ b/arch/tile/gxio/iorpc_uart.c
@@ -0,0 +1,77 @@
+/*
+ * Copyright 2013 Tilera Corporation. All Rights Reserved.
+ *
+ *   This program is free software; you can redistribute it and/or
+ *   modify it under the terms of the GNU General Public License
+ *   as published by the Free Software Foundation, version 2.
+ *
+ *   This program is distributed in the hope that it will be useful, but
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ *   NON INFRINGEMENT.  See the GNU General Public License for
+ *   more details.
+ */
+
+/* This file is machine-generated; DO NOT EDIT! */
+#include "gxio/iorpc_uart.h"
+
+struct cfg_interrupt_param {
+	union iorpc_interrupt interrupt;
+};
+
+int gxio_uart_cfg_interrupt(gxio_uart_context_t *context, int inter_x,
+			    int inter_y, int inter_ipi, int inter_event)
+{
+	struct cfg_interrupt_param temp;
+	struct cfg_interrupt_param *params = &temp;
+
+	params->interrupt.kernel.x = inter_x;
+	params->interrupt.kernel.y = inter_y;
+	params->interrupt.kernel.ipi = inter_ipi;
+	params->interrupt.kernel.event = inter_event;
+
+	return hv_dev_pwrite(context->fd, 0, (HV_VirtAddr) params,
+			     sizeof(*params), GXIO_UART_OP_CFG_INTERRUPT);
+}
+
+EXPORT_SYMBOL(gxio_uart_cfg_interrupt);
+
+struct get_mmio_base_param {
+	HV_PTE base;
+};
+
+int gxio_uart_get_mmio_base(gxio_uart_context_t *context, HV_PTE *base)
+{
+	int __result;
+	struct get_mmio_base_param temp;
+	struct get_mmio_base_param *params = &temp;
+
+	__result =
+	    hv_dev_pread(context->fd, 0, (HV_VirtAddr) params, sizeof(*params),
+			 GXIO_UART_OP_GET_MMIO_BASE);
+	*base = params->base;
+
+	return __result;
+}
+
+EXPORT_SYMBOL(gxio_uart_get_mmio_base);
+
+struct check_mmio_offset_param {
+	unsigned long offset;
+	unsigned long size;
+};
+
+int gxio_uart_check_mmio_offset(gxio_uart_context_t *context,
+				unsigned long offset, unsigned long size)
+{
+	struct check_mmio_offset_param temp;
+	struct check_mmio_offset_param *params = &temp;
+
+	params->offset = offset;
+	params->size = size;
+
+	return hv_dev_pwrite(context->fd, 0, (HV_VirtAddr) params,
+			     sizeof(*params), GXIO_UART_OP_CHECK_MMIO_OFFSET);
+}
+
+EXPORT_SYMBOL(gxio_uart_check_mmio_offset);
diff --git a/arch/tile/gxio/iorpc_usb_host.c b/arch/tile/gxio/iorpc_usb_host.c
index cf3c3cc1220..9c820073bfc 100644
--- a/arch/tile/gxio/iorpc_usb_host.c
+++ b/arch/tile/gxio/iorpc_usb_host.c
@@ -19,7 +19,7 @@ struct cfg_interrupt_param {
 	union iorpc_interrupt interrupt;
 };
 
-int gxio_usb_host_cfg_interrupt(gxio_usb_host_context_t * context, int inter_x,
+int gxio_usb_host_cfg_interrupt(gxio_usb_host_context_t *context, int inter_x,
 				int inter_y, int inter_ipi, int inter_event)
 {
 	struct cfg_interrupt_param temp;
@@ -41,7 +41,7 @@ struct register_client_memory_param {
 	unsigned int flags;
 };
 
-int gxio_usb_host_register_client_memory(gxio_usb_host_context_t * context,
+int gxio_usb_host_register_client_memory(gxio_usb_host_context_t *context,
 					 HV_PTE pte, unsigned int flags)
 {
 	struct register_client_memory_param temp;
@@ -61,7 +61,7 @@ struct get_mmio_base_param {
 	HV_PTE base;
 };
 
-int gxio_usb_host_get_mmio_base(gxio_usb_host_context_t * context, HV_PTE *base)
+int gxio_usb_host_get_mmio_base(gxio_usb_host_context_t *context, HV_PTE *base)
 {
 	int __result;
 	struct get_mmio_base_param temp;
@@ -82,7 +82,7 @@ struct check_mmio_offset_param {
 	unsigned long size;
 };
 
-int gxio_usb_host_check_mmio_offset(gxio_usb_host_context_t * context,
+int gxio_usb_host_check_mmio_offset(gxio_usb_host_context_t *context,
 				    unsigned long offset, unsigned long size)
 {
 	struct check_mmio_offset_param temp;
diff --git a/arch/tile/gxio/mpipe.c b/arch/tile/gxio/mpipe.c
index e71c63390ac..5301a9ffbae 100644
--- a/arch/tile/gxio/mpipe.c
+++ b/arch/tile/gxio/mpipe.c
@@ -36,8 +36,14 @@ int gxio_mpipe_init(gxio_mpipe_context_t *context, unsigned int mpipe_index)
 	int fd;
 	int i;
 
+	if (mpipe_index >= GXIO_MPIPE_INSTANCE_MAX)
+		return -EINVAL;
+
 	snprintf(file, sizeof(file), "mpipe/%d/iorpc", mpipe_index);
 	fd = hv_dev_open((HV_VirtAddr) file, 0);
+
+	context->fd = fd;
+
 	if (fd < 0) {
 		if (fd >= GXIO_ERR_MIN && fd <= GXIO_ERR_MAX)
 			return fd;
@@ -45,8 +51,6 @@ int gxio_mpipe_init(gxio_mpipe_context_t *context, unsigned int mpipe_index)
 			return -ENODEV;
 	}
 
-	context->fd = fd;
-
 	/* Map in the MMIO space. */
 	context->mmio_cfg_base = (void __force *)
 		iorpc_ioremap(fd, HV_MPIPE_CONFIG_MMIO_OFFSET,
@@ -64,12 +68,15 @@ int gxio_mpipe_init(gxio_mpipe_context_t *context, unsigned int mpipe_index)
 	for (i = 0; i < 8; i++)
 		context->__stacks.stacks[i] = 255;
 
+	context->instance = mpipe_index;
+
 	return 0;
 
       fast_failed:
 	iounmap((void __force __iomem *)(context->mmio_cfg_base));
       cfg_failed:
 	hv_dev_close(context->fd);
+	context->fd = -1;
 	return -ENODEV;
 }
 
@@ -383,7 +390,7 @@ EXPORT_SYMBOL_GPL(gxio_mpipe_iqueue_init);
 
 int gxio_mpipe_equeue_init(gxio_mpipe_equeue_t *equeue,
 			   gxio_mpipe_context_t *context,
-			   unsigned int edma_ring_id,
+			   unsigned int ering,
 			   unsigned int channel,
 			   void *mem, unsigned int mem_size,
 			   unsigned int mem_flags)
@@ -394,7 +401,7 @@ int gxio_mpipe_equeue_init(gxio_mpipe_equeue_t *equeue,
 	/* Offset used to read number of completed commands. */
 	MPIPE_EDMA_POST_REGION_ADDR_t offset;
 
-	int result = gxio_mpipe_init_edma_ring(context, edma_ring_id, channel,
+	int result = gxio_mpipe_init_edma_ring(context, ering, channel,
 					       mem, mem_size, mem_flags);
 	if (result < 0)
 		return result;
@@ -405,7 +412,7 @@ int gxio_mpipe_equeue_init(gxio_mpipe_equeue_t *equeue,
 	offset.region =
 		MPIPE_MMIO_ADDR__REGION_VAL_EDMA -
 		MPIPE_MMIO_ADDR__REGION_VAL_IDMA;
-	offset.ring = edma_ring_id;
+	offset.ring = ering;
 
 	__gxio_dma_queue_init(&equeue->dma_queue,
 			      context->mmio_fast_base + offset.word,
@@ -413,6 +420,9 @@ int gxio_mpipe_equeue_init(gxio_mpipe_equeue_t *equeue,
 	equeue->edescs = mem;
 	equeue->mask_num_entries = num_entries - 1;
 	equeue->log2_num_entries = __builtin_ctz(num_entries);
+	equeue->context = context;
+	equeue->ering = ering;
+	equeue->channel = channel;
 
 	return 0;
 }
@@ -493,6 +503,20 @@ static gxio_mpipe_context_t *_gxio_get_link_context(void)
 	return contextp;
 }
 
+int gxio_mpipe_link_instance(const char *link_name)
+{
+	_gxio_mpipe_link_name_t name;
+	gxio_mpipe_context_t *context = _gxio_get_link_context();
+
+	if (!context)
+		return GXIO_ERR_NO_DEVICE;
+
+	strncpy(name.name, link_name, sizeof(name.name));
+	name.name[GXIO_MPIPE_LINK_NAME_LEN - 1] = '\0';
+
+	return gxio_mpipe_info_instance_aux(context, name);
+}
+
 int gxio_mpipe_link_enumerate_mac(int idx, char *link_name, uint8_t *link_mac)
 {
 	int rv;
@@ -543,3 +567,12 @@ int gxio_mpipe_link_close(gxio_mpipe_link_t *link)
 }
 
 EXPORT_SYMBOL_GPL(gxio_mpipe_link_close);
+
+int gxio_mpipe_link_set_attr(gxio_mpipe_link_t *link, uint32_t attr,
+			     int64_t val)
+{
+	return gxio_mpipe_link_set_attr_aux(link->context, link->mac, attr,
+					    val);
+}
+
+EXPORT_SYMBOL_GPL(gxio_mpipe_link_set_attr);
diff --git a/arch/tile/gxio/uart.c b/arch/tile/gxio/uart.c
new file mode 100644
index 00000000000..ba585175ef8
--- /dev/null
+++ b/arch/tile/gxio/uart.c
@@ -0,0 +1,87 @@
+/*
+ * Copyright 2013 Tilera Corporation. All Rights Reserved.
+ *
+ *   This program is free software; you can redistribute it and/or
+ *   modify it under the terms of the GNU General Public License
+ *   as published by the Free Software Foundation, version 2.
+ *
+ *   This program is distributed in the hope that it will be useful, but
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ *   NON INFRINGEMENT.  See the GNU General Public License for
+ *   more details.
+ */
+
+/*
+ * Implementation of UART gxio calls.
+ */
+
+#include <linux/io.h>
+#include <linux/errno.h>
+#include <linux/module.h>
+
+#include <gxio/uart.h>
+#include <gxio/iorpc_globals.h>
+#include <gxio/iorpc_uart.h>
+#include <gxio/kiorpc.h>
+
+int gxio_uart_init(gxio_uart_context_t *context, int uart_index)
+{
+	char file[32];
+	int fd;
+
+	snprintf(file, sizeof(file), "uart/%d/iorpc", uart_index);
+	fd = hv_dev_open((HV_VirtAddr) file, 0);
+	if (fd < 0) {
+		if (fd >= GXIO_ERR_MIN && fd <= GXIO_ERR_MAX)
+			return fd;
+		else
+			return -ENODEV;
+	}
+
+	context->fd = fd;
+
+	/* Map in the MMIO space. */
+	context->mmio_base = (void __force *)
+		iorpc_ioremap(fd, HV_UART_MMIO_OFFSET, HV_UART_MMIO_SIZE);
+
+	if (context->mmio_base == NULL) {
+		hv_dev_close(context->fd);
+		context->fd = -1;
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
+EXPORT_SYMBOL_GPL(gxio_uart_init);
+
+int gxio_uart_destroy(gxio_uart_context_t *context)
+{
+	iounmap((void __force __iomem *)(context->mmio_base));
+	hv_dev_close(context->fd);
+
+	context->mmio_base = NULL;
+	context->fd = -1;
+
+	return 0;
+}
+
+EXPORT_SYMBOL_GPL(gxio_uart_destroy);
+
+/* UART register write wrapper. */
+void gxio_uart_write(gxio_uart_context_t *context, uint64_t offset,
+		     uint64_t word)
+{
+	__gxio_mmio_write(context->mmio_base + offset, word);
+}
+
+EXPORT_SYMBOL_GPL(gxio_uart_write);
+
+/* UART register read wrapper. */
+uint64_t gxio_uart_read(gxio_uart_context_t *context, uint64_t offset)
+{
+	return __gxio_mmio_read(context->mmio_base + offset);
+}
+
+EXPORT_SYMBOL_GPL(gxio_uart_read);
diff --git a/arch/tile/gxio/usb_host.c b/arch/tile/gxio/usb_host.c
index 66b002f54ec..785afad7922 100644
--- a/arch/tile/gxio/usb_host.c
+++ b/arch/tile/gxio/usb_host.c
@@ -26,7 +26,7 @@
 #include <gxio/kiorpc.h>
 #include <gxio/usb_host.h>
 
-int gxio_usb_host_init(gxio_usb_host_context_t * context, int usb_index,
+int gxio_usb_host_init(gxio_usb_host_context_t *context, int usb_index,
 		       int is_ehci)
 {
 	char file[32];
@@ -63,7 +63,7 @@ int gxio_usb_host_init(gxio_usb_host_context_t * context, int usb_index,
 
 EXPORT_SYMBOL_GPL(gxio_usb_host_init);
 
-int gxio_usb_host_destroy(gxio_usb_host_context_t * context)
+int gxio_usb_host_destroy(gxio_usb_host_context_t *context)
 {
 	iounmap((void __force __iomem *)(context->mmio_base));
 	hv_dev_close(context->fd);
@@ -76,14 +76,14 @@ int gxio_usb_host_destroy(gxio_usb_host_context_t * context)
 
 EXPORT_SYMBOL_GPL(gxio_usb_host_destroy);
 
-void *gxio_usb_host_get_reg_start(gxio_usb_host_context_t * context)
+void *gxio_usb_host_get_reg_start(gxio_usb_host_context_t *context)
 {
 	return context->mmio_base;
 }
 
 EXPORT_SYMBOL_GPL(gxio_usb_host_get_reg_start);
 
-size_t gxio_usb_host_get_reg_len(gxio_usb_host_context_t * context)
+size_t gxio_usb_host_get_reg_len(gxio_usb_host_context_t *context)
 {
 	return HV_USB_HOST_MMIO_SIZE;
 }