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Message-ID: <201205091556.q49FunnW010418@farm-0027.internal.tilera.com>
Date: Tue, 8 May 2012 16:53:03 -0400
From: Chris Metcalf <cmetcalf@...era.com>
To: <linux-kernel@...r.kernel.org>, Jesper Juhl <jj@...osbits.net>
Subject: [PATCH v2 1/2] arch/tile: provide kernel support for the tilegx TRIO shim
Provide kernel support for the tilegx "Transaction I/O" (TRIO) on-chip
hardware. This hardware implements the PCIe interface for tilegx;
the driver changes to use TRIO for PCIe are in a subsequent commit.
The change is layered on top of the tilegx GXIO IORPC subsystem.
Signed-off-by: Chris Metcalf <cmetcalf@...era.com>
---
arch/tile/gxio/Kconfig | 6 +
arch/tile/gxio/Makefile | 1 +
arch/tile/gxio/iorpc_trio.c | 307 ++++++++++++++++++++++++++
arch/tile/gxio/trio.c | 49 ++++
arch/tile/include/arch/trio.h | 72 ++++++
arch/tile/include/arch/trio_constants.h | 36 +++
arch/tile/include/arch/trio_def.h | 41 ++++
arch/tile/include/arch/trio_pcie_intfc.h | 229 +++++++++++++++++++
arch/tile/include/arch/trio_pcie_intfc_def.h | 32 +++
arch/tile/include/arch/trio_pcie_rc.h | 156 +++++++++++++
arch/tile/include/arch/trio_pcie_rc_def.h | 24 ++
arch/tile/include/arch/trio_shm.h | 125 +++++++++++
arch/tile/include/arch/trio_shm_def.h | 19 ++
arch/tile/include/gxio/iorpc_trio.h | 97 ++++++++
arch/tile/include/gxio/trio.h | 304 +++++++++++++++++++++++++
arch/tile/include/hv/drv_trio_intf.h | 195 ++++++++++++++++
16 files changed, 1693 insertions(+), 0 deletions(-)
create mode 100644 arch/tile/gxio/iorpc_trio.c
create mode 100644 arch/tile/gxio/trio.c
create mode 100644 arch/tile/include/arch/trio.h
create mode 100644 arch/tile/include/arch/trio_constants.h
create mode 100644 arch/tile/include/arch/trio_def.h
create mode 100644 arch/tile/include/arch/trio_pcie_intfc.h
create mode 100644 arch/tile/include/arch/trio_pcie_intfc_def.h
create mode 100644 arch/tile/include/arch/trio_pcie_rc.h
create mode 100644 arch/tile/include/arch/trio_pcie_rc_def.h
create mode 100644 arch/tile/include/arch/trio_shm.h
create mode 100644 arch/tile/include/arch/trio_shm_def.h
create mode 100644 arch/tile/include/gxio/iorpc_trio.h
create mode 100644 arch/tile/include/gxio/trio.h
create mode 100644 arch/tile/include/hv/drv_trio_intf.h
diff --git a/arch/tile/gxio/Kconfig b/arch/tile/gxio/Kconfig
index 8aeebb7..68e1cca 100644
--- a/arch/tile/gxio/Kconfig
+++ b/arch/tile/gxio/Kconfig
@@ -15,3 +15,9 @@ config TILE_GXIO_MPIPE
bool
select TILE_GXIO
select TILE_GXIO_DMA
+
+# Support direct access to the TILE-Gx TRIO hardware from kernel space.
+config TILE_GXIO_TRIO
+ bool
+ select TILE_GXIO
+ select TILE_GXIO_DMA
diff --git a/arch/tile/gxio/Makefile b/arch/tile/gxio/Makefile
index 130eec4..2389ef3 100644
--- a/arch/tile/gxio/Makefile
+++ b/arch/tile/gxio/Makefile
@@ -5,3 +5,4 @@
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
diff --git a/arch/tile/gxio/iorpc_trio.c b/arch/tile/gxio/iorpc_trio.c
new file mode 100644
index 0000000..209cb0d
--- /dev/null
+++ b/arch/tile/gxio/iorpc_trio.c
@@ -0,0 +1,307 @@
+/*
+ * Copyright 2012 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_trio.h"
+
+struct alloc_asids_param {
+ unsigned int count;
+ unsigned int first;
+ unsigned int flags;
+};
+
+int gxio_trio_alloc_asids(gxio_trio_context_t * context, unsigned int count,
+ unsigned int first, unsigned int flags)
+{
+ struct alloc_asids_param temp;
+ struct alloc_asids_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_ASIDS);
+}
+
+EXPORT_SYMBOL(gxio_trio_alloc_asids);
+
+
+struct alloc_memory_maps_param {
+ unsigned int count;
+ unsigned int first;
+ unsigned int flags;
+};
+
+int gxio_trio_alloc_memory_maps(gxio_trio_context_t * context,
+ unsigned int count, unsigned int first,
+ unsigned int flags)
+{
+ struct alloc_memory_maps_param temp;
+ struct alloc_memory_maps_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_MEMORY_MAPS);
+}
+
+EXPORT_SYMBOL(gxio_trio_alloc_memory_maps);
+
+
+struct alloc_pio_regions_param {
+ unsigned int count;
+ unsigned int first;
+ unsigned int flags;
+};
+
+int gxio_trio_alloc_pio_regions(gxio_trio_context_t * context,
+ unsigned int count, unsigned int first,
+ unsigned int flags)
+{
+ struct alloc_pio_regions_param temp;
+ struct alloc_pio_regions_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_PIO_REGIONS);
+}
+
+EXPORT_SYMBOL(gxio_trio_alloc_pio_regions);
+
+struct init_pio_region_aux_param {
+ unsigned int pio_region;
+ unsigned int mac;
+ uint32_t bus_address_hi;
+ unsigned int flags;
+};
+
+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)
+{
+ struct init_pio_region_aux_param temp;
+ struct init_pio_region_aux_param *params = &temp;
+
+ params->pio_region = pio_region;
+ params->mac = mac;
+ params->bus_address_hi = bus_address_hi;
+ params->flags = flags;
+
+ return hv_dev_pwrite(context->fd, 0, (HV_VirtAddr) params,
+ sizeof(*params), GXIO_TRIO_OP_INIT_PIO_REGION_AUX);
+}
+
+EXPORT_SYMBOL(gxio_trio_init_pio_region_aux);
+
+
+struct init_memory_map_mmu_aux_param {
+ unsigned int map;
+ unsigned long va;
+ uint64_t size;
+ unsigned int asid;
+ unsigned int mac;
+ uint64_t bus_address;
+ unsigned int node;
+ unsigned int order_mode;
+};
+
+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,
+ unsigned int node,
+ unsigned int order_mode)
+{
+ struct init_memory_map_mmu_aux_param temp;
+ struct init_memory_map_mmu_aux_param *params = &temp;
+
+ params->map = map;
+ params->va = va;
+ params->size = size;
+ params->asid = asid;
+ params->mac = mac;
+ params->bus_address = bus_address;
+ params->node = node;
+ params->order_mode = order_mode;
+
+ return hv_dev_pwrite(context->fd, 0, (HV_VirtAddr) params,
+ sizeof(*params),
+ GXIO_TRIO_OP_INIT_MEMORY_MAP_MMU_AUX);
+}
+
+EXPORT_SYMBOL(gxio_trio_init_memory_map_mmu_aux);
+
+
+struct config_legacy_intr_param {
+ union iorpc_interrupt interrupt;
+ unsigned int mac;
+ unsigned int intx;
+};
+
+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)
+{
+ struct config_legacy_intr_param temp;
+ struct config_legacy_intr_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;
+ params->mac = mac;
+ params->intx = intx;
+
+ return hv_dev_pwrite(context->fd, 0, (HV_VirtAddr) params,
+ sizeof(*params), GXIO_TRIO_OP_CONFIG_LEGACY_INTR);
+}
+
+EXPORT_SYMBOL(gxio_trio_config_legacy_intr);
+
+struct config_msi_intr_param {
+ union iorpc_interrupt interrupt;
+ unsigned int mac;
+ unsigned int mem_map;
+ uint64_t mem_map_base;
+ uint64_t mem_map_limit;
+ unsigned int asid;
+};
+
+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,
+ unsigned int asid)
+{
+ struct config_msi_intr_param temp;
+ struct config_msi_intr_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;
+ params->mac = mac;
+ params->mem_map = mem_map;
+ params->mem_map_base = mem_map_base;
+ params->mem_map_limit = mem_map_limit;
+ params->asid = asid;
+
+ return hv_dev_pwrite(context->fd, 0, (HV_VirtAddr) params,
+ sizeof(*params), GXIO_TRIO_OP_CONFIG_MSI_INTR);
+}
+
+EXPORT_SYMBOL(gxio_trio_config_msi_intr);
+
+
+struct set_mps_mrs_param {
+ uint16_t mps;
+ uint16_t mrs;
+ unsigned int mac;
+};
+
+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;
+ struct set_mps_mrs_param *params = &temp;
+
+ params->mps = mps;
+ params->mrs = mrs;
+ params->mac = mac;
+
+ return hv_dev_pwrite(context->fd, 0, (HV_VirtAddr) params,
+ sizeof(*params), GXIO_TRIO_OP_SET_MPS_MRS);
+}
+
+EXPORT_SYMBOL(gxio_trio_set_mps_mrs);
+
+struct force_rc_link_up_param {
+ 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;
+
+ params->mac = mac;
+
+ return hv_dev_pwrite(context->fd, 0, (HV_VirtAddr) params,
+ sizeof(*params), GXIO_TRIO_OP_FORCE_RC_LINK_UP);
+}
+
+EXPORT_SYMBOL(gxio_trio_force_rc_link_up);
+
+struct force_ep_link_up_param {
+ 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;
+
+ params->mac = mac;
+
+ return hv_dev_pwrite(context->fd, 0, (HV_VirtAddr) params,
+ sizeof(*params), GXIO_TRIO_OP_FORCE_EP_LINK_UP);
+}
+
+EXPORT_SYMBOL(gxio_trio_force_ep_link_up);
+
+struct get_mmio_base_param {
+ 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;
+ struct get_mmio_base_param *params = &temp;
+
+ __result =
+ hv_dev_pread(context->fd, 0, (HV_VirtAddr) params, sizeof(*params),
+ GXIO_TRIO_OP_GET_MMIO_BASE);
+ *base = params->base;
+
+ return __result;
+}
+
+EXPORT_SYMBOL(gxio_trio_get_mmio_base);
+
+struct check_mmio_offset_param {
+ unsigned long offset;
+ unsigned long size;
+};
+
+int gxio_trio_check_mmio_offset(gxio_trio_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_TRIO_OP_CHECK_MMIO_OFFSET);
+}
+
+EXPORT_SYMBOL(gxio_trio_check_mmio_offset);
diff --git a/arch/tile/gxio/trio.c b/arch/tile/gxio/trio.c
new file mode 100644
index 0000000..69f0b8d
--- /dev/null
+++ b/arch/tile/gxio/trio.c
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2012 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 trio gxio calls.
+ */
+
+#include <linux/errno.h>
+#include <linux/io.h>
+#include <linux/module.h>
+
+#include <gxio/trio.h>
+#include <gxio/iorpc_globals.h>
+#include <gxio/iorpc_trio.h>
+#include <gxio/kiorpc.h>
+
+int gxio_trio_init(gxio_trio_context_t *context, unsigned int trio_index)
+{
+ char file[32];
+ int fd;
+
+ snprintf(file, sizeof(file), "trio/%d/iorpc", trio_index);
+ fd = hv_dev_open((HV_VirtAddr) file, 0);
+ if (fd < 0) {
+ context->fd = -1;
+
+ if (fd >= GXIO_ERR_MIN && fd <= GXIO_ERR_MAX)
+ return fd;
+ else
+ return -ENODEV;
+ }
+
+ context->fd = fd;
+
+ return 0;
+}
+
+EXPORT_SYMBOL_GPL(gxio_trio_init);
diff --git a/arch/tile/include/arch/trio.h b/arch/tile/include/arch/trio.h
new file mode 100644
index 0000000..d3000a8
--- /dev/null
+++ b/arch/tile/include/arch/trio.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright 2012 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.
+ */
+
+/* Machine-generated file; do not edit. */
+
+#ifndef __ARCH_TRIO_H__
+#define __ARCH_TRIO_H__
+
+#include <arch/abi.h>
+#include <arch/trio_def.h>
+
+#ifndef __ASSEMBLER__
+
+/*
+ * Tile PIO Region Configuration - CFG Address Format.
+ * This register describes the address format for PIO accesses when the
+ * associated region is setup with TYPE=CFG.
+ */
+
+__extension__
+typedef union
+{
+ struct
+ {
+#ifndef __BIG_ENDIAN__
+ /* Register Address (full byte address). */
+ uint_reg_t reg_addr : 12;
+ /* Function Number */
+ uint_reg_t fn : 3;
+ /* Device Number */
+ uint_reg_t dev : 5;
+ /* BUS Number */
+ uint_reg_t bus : 8;
+ /* Config Type: 0 for access to directly-attached device. 1 otherwise. */
+ uint_reg_t type : 1;
+ /* Reserved. */
+ uint_reg_t __reserved_0 : 1;
+ /*
+ * MAC select. This must match the configuration in
+ * TILE_PIO_REGION_SETUP.MAC.
+ */
+ uint_reg_t mac : 2;
+ /* Reserved. */
+ uint_reg_t __reserved_1 : 32;
+#else /* __BIG_ENDIAN__ */
+ uint_reg_t __reserved_1 : 32;
+ uint_reg_t mac : 2;
+ uint_reg_t __reserved_0 : 1;
+ uint_reg_t type : 1;
+ uint_reg_t bus : 8;
+ uint_reg_t dev : 5;
+ uint_reg_t fn : 3;
+ uint_reg_t reg_addr : 12;
+#endif
+ };
+
+ uint_reg_t word;
+} TRIO_TILE_PIO_REGION_SETUP_CFG_ADDR_t;
+#endif /* !defined(__ASSEMBLER__) */
+
+#endif /* !defined(__ARCH_TRIO_H__) */
diff --git a/arch/tile/include/arch/trio_constants.h b/arch/tile/include/arch/trio_constants.h
new file mode 100644
index 0000000..628b045
--- /dev/null
+++ b/arch/tile/include/arch/trio_constants.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2012 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.
+ */
+
+
+#ifndef __ARCH_TRIO_CONSTANTS_H__
+#define __ARCH_TRIO_CONSTANTS_H__
+
+#define TRIO_NUM_ASIDS 16
+#define TRIO_NUM_TLBS_PER_ASID 16
+
+#define TRIO_NUM_TPIO_REGIONS 8
+#define TRIO_LOG2_NUM_TPIO_REGIONS 3
+
+#define TRIO_NUM_MAP_MEM_REGIONS 16
+#define TRIO_LOG2_NUM_MAP_MEM_REGIONS 4
+#define TRIO_NUM_MAP_SQ_REGIONS 8
+#define TRIO_LOG2_NUM_MAP_SQ_REGIONS 3
+
+#define TRIO_LOG2_NUM_SQ_FIFO_ENTRIES 6
+
+#define TRIO_NUM_PUSH_DMA_RINGS 32
+
+#define TRIO_NUM_PULL_DMA_RINGS 32
+
+#endif /* __ARCH_TRIO_CONSTANTS_H__ */
diff --git a/arch/tile/include/arch/trio_def.h b/arch/tile/include/arch/trio_def.h
new file mode 100644
index 0000000..e805003
--- /dev/null
+++ b/arch/tile/include/arch/trio_def.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2012 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.
+ */
+
+/* Machine-generated file; do not edit. */
+
+#ifndef __ARCH_TRIO_DEF_H__
+#define __ARCH_TRIO_DEF_H__
+#define TRIO_CFG_REGION_ADDR__REG_SHIFT 0
+#define TRIO_CFG_REGION_ADDR__INTFC_SHIFT 16
+#define TRIO_CFG_REGION_ADDR__INTFC_VAL_TRIO 0x0
+#define TRIO_CFG_REGION_ADDR__INTFC_VAL_MAC_INTERFACE 0x1
+#define TRIO_CFG_REGION_ADDR__INTFC_VAL_MAC_STANDARD 0x2
+#define TRIO_CFG_REGION_ADDR__INTFC_VAL_MAC_PROTECTED 0x3
+#define TRIO_CFG_REGION_ADDR__MAC_SEL_SHIFT 18
+#define TRIO_CFG_REGION_ADDR__PROT_SHIFT 20
+#define TRIO_PIO_REGIONS_ADDR__REGION_SHIFT 32
+#define TRIO_MAP_MEM_REG_INT0 0x1000000000
+#define TRIO_MAP_MEM_REG_INT1 0x1000000008
+#define TRIO_MAP_MEM_REG_INT2 0x1000000010
+#define TRIO_MAP_MEM_REG_INT3 0x1000000018
+#define TRIO_MAP_MEM_REG_INT4 0x1000000020
+#define TRIO_MAP_MEM_REG_INT5 0x1000000028
+#define TRIO_MAP_MEM_REG_INT6 0x1000000030
+#define TRIO_MAP_MEM_REG_INT7 0x1000000038
+#define TRIO_MAP_MEM_LIM__ADDR_SHIFT 12
+#define TRIO_MAP_MEM_SETUP__ORDER_MODE_VAL_UNORDERED 0x0
+#define TRIO_MAP_MEM_SETUP__ORDER_MODE_VAL_STRICT 0x1
+#define TRIO_MAP_MEM_SETUP__ORDER_MODE_VAL_REL_ORD 0x2
+#define TRIO_TILE_PIO_REGION_SETUP_CFG_ADDR__MAC_SHIFT 30
+#endif /* !defined(__ARCH_TRIO_DEF_H__) */
diff --git a/arch/tile/include/arch/trio_pcie_intfc.h b/arch/tile/include/arch/trio_pcie_intfc.h
new file mode 100644
index 0000000..0487fdb
--- /dev/null
+++ b/arch/tile/include/arch/trio_pcie_intfc.h
@@ -0,0 +1,229 @@
+/*
+ * Copyright 2012 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.
+ */
+
+/* Machine-generated file; do not edit. */
+
+#ifndef __ARCH_TRIO_PCIE_INTFC_H__
+#define __ARCH_TRIO_PCIE_INTFC_H__
+
+#include <arch/abi.h>
+#include <arch/trio_pcie_intfc_def.h>
+
+#ifndef __ASSEMBLER__
+
+/*
+ * Port Configuration.
+ * Configuration of the PCIe Port
+ */
+
+__extension__
+typedef union
+{
+ struct
+ {
+#ifndef __BIG_ENDIAN__
+ /* Provides the state of the strapping pins for this port. */
+ uint_reg_t strap_state : 3;
+ /* Reserved. */
+ uint_reg_t __reserved_0 : 1;
+ /*
+ * When 1, the device type will be overridden using OVD_DEV_TYPE_VAL.
+ * When 0, the device type is determined based on the STRAP_STATE.
+ */
+ uint_reg_t ovd_dev_type : 1;
+ /* Provides the device type when OVD_DEV_TYPE is 1. */
+ uint_reg_t ovd_dev_type_val : 4;
+ /* Determines how link is trained. */
+ uint_reg_t train_mode : 2;
+ /* Reserved. */
+ uint_reg_t __reserved_1 : 1;
+ /*
+ * For PCIe, used to flip physical RX lanes that were not properly wired.
+ * This is not the same as lane reversal which is handled automatically
+ * during link training. When 0, RX Lane0 must be wired to the link
+ * partner (either to its Lane0 or it's LaneN). When RX_LANE_FLIP is 1,
+ * the highest numbered lane for this port becomes Lane0 and Lane0 does
+ * NOT have to be wired to the link partner.
+ */
+ uint_reg_t rx_lane_flip : 1;
+ /*
+ * For PCIe, used to flip physical TX lanes that were not properly wired.
+ * This is not the same as lane reversal which is handled automatically
+ * during link training. When 0, TX Lane0 must be wired to the link
+ * partner (either to its Lane0 or it's LaneN). When TX_LANE_FLIP is 1,
+ * the highest numbered lane for this port becomes Lane0 and Lane0 does
+ * NOT have to be wired to the link partner.
+ */
+ uint_reg_t tx_lane_flip : 1;
+ /*
+ * For StreamIO port, configures the width of the port when TRAIN_MODE is
+ * not STRAP.
+ */
+ uint_reg_t stream_width : 2;
+ /*
+ * For StreamIO port, configures the rate of the port when TRAIN_MODE is
+ * not STRAP.
+ */
+ uint_reg_t stream_rate : 2;
+ /* Reserved. */
+ uint_reg_t __reserved_2 : 46;
+#else /* __BIG_ENDIAN__ */
+ uint_reg_t __reserved_2 : 46;
+ uint_reg_t stream_rate : 2;
+ uint_reg_t stream_width : 2;
+ uint_reg_t tx_lane_flip : 1;
+ uint_reg_t rx_lane_flip : 1;
+ uint_reg_t __reserved_1 : 1;
+ uint_reg_t train_mode : 2;
+ uint_reg_t ovd_dev_type_val : 4;
+ uint_reg_t ovd_dev_type : 1;
+ uint_reg_t __reserved_0 : 1;
+ uint_reg_t strap_state : 3;
+#endif
+ };
+
+ uint_reg_t word;
+} TRIO_PCIE_INTFC_PORT_CONFIG_t;
+
+/*
+ * Port Status.
+ * Status of the PCIe Port. This register applies to the StreamIO port when
+ * StreamIO is enabled.
+ */
+
+__extension__
+typedef union
+{
+ struct
+ {
+#ifndef __BIG_ENDIAN__
+ /*
+ * Indicates the DL state of the port. When 1, the port is up and ready
+ * to receive traffic.
+ */
+ uint_reg_t dl_up : 1;
+ /*
+ * Indicates the number of times the link has gone down. Clears on read.
+ */
+ uint_reg_t dl_down_cnt : 7;
+ /* Indicates the SERDES PLL has spun up and is providing a valid clock. */
+ uint_reg_t clock_ready : 1;
+ /* Reserved. */
+ uint_reg_t __reserved_0 : 7;
+ /* Device revision ID. */
+ uint_reg_t device_rev : 8;
+ /* Link state (PCIe). */
+ uint_reg_t ltssm_state : 6;
+ /* Link power management state (PCIe). */
+ uint_reg_t pm_state : 3;
+ /* Reserved. */
+ uint_reg_t __reserved_1 : 31;
+#else /* __BIG_ENDIAN__ */
+ uint_reg_t __reserved_1 : 31;
+ uint_reg_t pm_state : 3;
+ uint_reg_t ltssm_state : 6;
+ uint_reg_t device_rev : 8;
+ uint_reg_t __reserved_0 : 7;
+ uint_reg_t clock_ready : 1;
+ uint_reg_t dl_down_cnt : 7;
+ uint_reg_t dl_up : 1;
+#endif
+ };
+
+ uint_reg_t word;
+} TRIO_PCIE_INTFC_PORT_STATUS_t;
+
+/*
+ * Transmit FIFO Control.
+ * Contains TX FIFO thresholds. These registers are for diagnostics purposes
+ * only. Changing these values causes undefined behavior.
+ */
+
+__extension__
+typedef union
+{
+ struct
+ {
+#ifndef __BIG_ENDIAN__
+ /*
+ * Almost-Empty level for TX0 data. Typically set to at least
+ * roundup(38.0*M/N) where N=tclk frequency and M=MAC symbol rate in MHz
+ * for a x4 port (250MHz).
+ */
+ uint_reg_t tx0_data_ae_lvl : 7;
+ /* Reserved. */
+ uint_reg_t __reserved_0 : 1;
+ /* Almost-Empty level for TX1 data. */
+ uint_reg_t tx1_data_ae_lvl : 7;
+ /* Reserved. */
+ uint_reg_t __reserved_1 : 1;
+ /* Almost-Full level for TX0 data. */
+ uint_reg_t tx0_data_af_lvl : 7;
+ /* Reserved. */
+ uint_reg_t __reserved_2 : 1;
+ /* Almost-Full level for TX1 data. */
+ uint_reg_t tx1_data_af_lvl : 7;
+ /* Reserved. */
+ uint_reg_t __reserved_3 : 1;
+ /* Almost-Full level for TX0 info. */
+ uint_reg_t tx0_info_af_lvl : 5;
+ /* Reserved. */
+ uint_reg_t __reserved_4 : 3;
+ /* Almost-Full level for TX1 info. */
+ uint_reg_t tx1_info_af_lvl : 5;
+ /* Reserved. */
+ uint_reg_t __reserved_5 : 3;
+ /*
+ * This register provides performance adjustment for high bandwidth
+ * flows. The MAC will assert almost-full to TRIO if non-posted credits
+ * fall below this level. Note that setting this larger than the initial
+ * PORT_CREDIT.NPH value will cause READS to never be sent. If the
+ * initial credit value from the link partner is smaller than this value
+ * when the link comes up, the value will be reset to the initial credit
+ * value to prevent lockup.
+ */
+ uint_reg_t min_np_credits : 8;
+ /*
+ * This register provides performance adjustment for high bandwidth
+ * flows. The MAC will assert almost-full to TRIO if posted credits fall
+ * below this level. Note that setting this larger than the initial
+ * PORT_CREDIT.PH value will cause WRITES to never be sent. If the
+ * initial credit value from the link partner is smaller than this value
+ * when the link comes up, the value will be reset to the initial credit
+ * value to prevent lockup.
+ */
+ uint_reg_t min_p_credits : 8;
+#else /* __BIG_ENDIAN__ */
+ uint_reg_t min_p_credits : 8;
+ uint_reg_t min_np_credits : 8;
+ uint_reg_t __reserved_5 : 3;
+ uint_reg_t tx1_info_af_lvl : 5;
+ uint_reg_t __reserved_4 : 3;
+ uint_reg_t tx0_info_af_lvl : 5;
+ uint_reg_t __reserved_3 : 1;
+ uint_reg_t tx1_data_af_lvl : 7;
+ uint_reg_t __reserved_2 : 1;
+ uint_reg_t tx0_data_af_lvl : 7;
+ uint_reg_t __reserved_1 : 1;
+ uint_reg_t tx1_data_ae_lvl : 7;
+ uint_reg_t __reserved_0 : 1;
+ uint_reg_t tx0_data_ae_lvl : 7;
+#endif
+ };
+
+ uint_reg_t word;
+} TRIO_PCIE_INTFC_TX_FIFO_CTL_t;
+#endif /* !defined(__ASSEMBLER__) */
+
+#endif /* !defined(__ARCH_TRIO_PCIE_INTFC_H__) */
diff --git a/arch/tile/include/arch/trio_pcie_intfc_def.h b/arch/tile/include/arch/trio_pcie_intfc_def.h
new file mode 100644
index 0000000..d3fd678
--- /dev/null
+++ b/arch/tile/include/arch/trio_pcie_intfc_def.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright 2012 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.
+ */
+
+/* Machine-generated file; do not edit. */
+
+#ifndef __ARCH_TRIO_PCIE_INTFC_DEF_H__
+#define __ARCH_TRIO_PCIE_INTFC_DEF_H__
+#define TRIO_PCIE_INTFC_MAC_INT_STS 0x0000
+#define TRIO_PCIE_INTFC_MAC_INT_STS__INT_LEVEL_MASK 0xf000
+#define TRIO_PCIE_INTFC_PORT_CONFIG 0x0018
+#define TRIO_PCIE_INTFC_PORT_CONFIG__STRAP_STATE_VAL_DISABLED 0x0
+#define TRIO_PCIE_INTFC_PORT_CONFIG__STRAP_STATE_VAL_AUTO_CONFIG_ENDPOINT 0x1
+#define TRIO_PCIE_INTFC_PORT_CONFIG__STRAP_STATE_VAL_AUTO_CONFIG_RC 0x2
+#define TRIO_PCIE_INTFC_PORT_CONFIG__STRAP_STATE_VAL_AUTO_CONFIG_ENDPOINT_G1 0x3
+#define TRIO_PCIE_INTFC_PORT_CONFIG__STRAP_STATE_VAL_AUTO_CONFIG_RC_G1 0x4
+#define TRIO_PCIE_INTFC_PORT_CONFIG__STRAP_STATE_VAL_AUTO_XLINK 0x5
+#define TRIO_PCIE_INTFC_PORT_CONFIG__STRAP_STATE_VAL_STREAM_X1 0x6
+#define TRIO_PCIE_INTFC_PORT_CONFIG__STRAP_STATE_VAL_STREAM_X4 0x7
+#define TRIO_PCIE_INTFC_PORT_STATUS 0x0020
+#define TRIO_PCIE_INTFC_TX_FIFO_CTL 0x0050
+#endif /* !defined(__ARCH_TRIO_PCIE_INTFC_DEF_H__) */
diff --git a/arch/tile/include/arch/trio_pcie_rc.h b/arch/tile/include/arch/trio_pcie_rc.h
new file mode 100644
index 0000000..6a25d0a
--- /dev/null
+++ b/arch/tile/include/arch/trio_pcie_rc.h
@@ -0,0 +1,156 @@
+/*
+ * Copyright 2012 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.
+ */
+
+/* Machine-generated file; do not edit. */
+
+#ifndef __ARCH_TRIO_PCIE_RC_H__
+#define __ARCH_TRIO_PCIE_RC_H__
+
+#include <arch/abi.h>
+#include <arch/trio_pcie_rc_def.h>
+
+#ifndef __ASSEMBLER__
+
+/* Device Capabilities Register. */
+
+__extension__
+typedef union
+{
+ struct
+ {
+#ifndef __BIG_ENDIAN__
+ /*
+ * Max_Payload_Size Supported, writablethrough the MAC_STANDARD interface
+ */
+ uint_reg_t mps_sup : 3;
+ /*
+ * This field is writable through the MAC_STANDARD interface. However,
+ * Phantom Function is not supported. Therefore, the application must
+ * not write any value other than 0x0 to this field.
+ */
+ uint_reg_t phantom_function_supported : 2;
+ /* This bit is writable through the MAC_STANDARD interface. */
+ uint_reg_t ext_tag_field_supported : 1;
+ /* Reserved. */
+ uint_reg_t __reserved_0 : 3;
+ /* Endpoint L1 Acceptable Latency Must be 0x0 for non-Endpoint devices. */
+ uint_reg_t l1_lat : 3;
+ /*
+ * Undefined since PCI Express 1.1 (Was Attention Button Present for PCI
+ * Express 1.0a)
+ */
+ uint_reg_t r1 : 1;
+ /*
+ * Undefined since PCI Express 1.1 (Was Attention Indicator Present for
+ * PCI Express 1.0a)
+ */
+ uint_reg_t r2 : 1;
+ /*
+ * Undefined since PCI Express 1.1 (Was Power Indicator Present for PCI
+ * Express 1.0a)
+ */
+ uint_reg_t r3 : 1;
+ /*
+ * Role-Based Error Reporting, writable through the MAC_STANDARD
+ * interface. Required to be set for device compliant to 1.1 spec and
+ * later.
+ */
+ uint_reg_t rer : 1;
+ /* Reserved. */
+ uint_reg_t __reserved_1 : 2;
+ /* Captured Slot Power Limit Value Upstream port only. */
+ uint_reg_t slot_pwr_lim : 8;
+ /* Captured Slot Power Limit Scale Upstream port only. */
+ uint_reg_t slot_pwr_scale : 2;
+ /* Reserved. */
+ uint_reg_t __reserved_2 : 4;
+ /* Endpoint L0s Acceptable LatencyMust be 0x0 for non-Endpoint devices. */
+ uint_reg_t l0s_lat : 1;
+ /* Reserved. */
+ uint_reg_t __reserved_3 : 31;
+#else /* __BIG_ENDIAN__ */
+ uint_reg_t __reserved_3 : 31;
+ uint_reg_t l0s_lat : 1;
+ uint_reg_t __reserved_2 : 4;
+ uint_reg_t slot_pwr_scale : 2;
+ uint_reg_t slot_pwr_lim : 8;
+ uint_reg_t __reserved_1 : 2;
+ uint_reg_t rer : 1;
+ uint_reg_t r3 : 1;
+ uint_reg_t r2 : 1;
+ uint_reg_t r1 : 1;
+ uint_reg_t l1_lat : 3;
+ uint_reg_t __reserved_0 : 3;
+ uint_reg_t ext_tag_field_supported : 1;
+ uint_reg_t phantom_function_supported : 2;
+ uint_reg_t mps_sup : 3;
+#endif
+ };
+
+ uint_reg_t word;
+} TRIO_PCIE_RC_DEVICE_CAP_t;
+
+/* Device Control Register. */
+
+__extension__
+typedef union
+{
+ struct
+ {
+#ifndef __BIG_ENDIAN__
+ /* Correctable Error Reporting Enable */
+ uint_reg_t cor_err_ena : 1;
+ /* Non-Fatal Error Reporting Enable */
+ uint_reg_t nf_err_ena : 1;
+ /* Fatal Error Reporting Enable */
+ uint_reg_t fatal_err_ena : 1;
+ /* Unsupported Request Reporting Enable */
+ uint_reg_t ur_ena : 1;
+ /* Relaxed orderring enable */
+ uint_reg_t ro_ena : 1;
+ /* Max Payload Size */
+ uint_reg_t max_payload_size : 3;
+ /* Extended Tag Field Enable */
+ uint_reg_t ext_tag : 1;
+ /* Phantom Function Enable */
+ uint_reg_t ph_fn_ena : 1;
+ /* AUX Power PM Enable */
+ uint_reg_t aux_pm_ena : 1;
+ /* Enable NoSnoop */
+ uint_reg_t no_snoop : 1;
+ /* Max read request size */
+ uint_reg_t max_read_req_sz : 3;
+ /* Reserved. */
+ uint_reg_t __reserved : 49;
+#else /* __BIG_ENDIAN__ */
+ uint_reg_t __reserved : 49;
+ uint_reg_t max_read_req_sz : 3;
+ uint_reg_t no_snoop : 1;
+ uint_reg_t aux_pm_ena : 1;
+ uint_reg_t ph_fn_ena : 1;
+ uint_reg_t ext_tag : 1;
+ uint_reg_t max_payload_size : 3;
+ uint_reg_t ro_ena : 1;
+ uint_reg_t ur_ena : 1;
+ uint_reg_t fatal_err_ena : 1;
+ uint_reg_t nf_err_ena : 1;
+ uint_reg_t cor_err_ena : 1;
+#endif
+ };
+
+ uint_reg_t word;
+} TRIO_PCIE_RC_DEVICE_CONTROL_t;
+#endif /* !defined(__ASSEMBLER__) */
+
+#endif /* !defined(__ARCH_TRIO_PCIE_RC_H__) */
diff --git a/arch/tile/include/arch/trio_pcie_rc_def.h b/arch/tile/include/arch/trio_pcie_rc_def.h
new file mode 100644
index 0000000..74081a6
--- /dev/null
+++ b/arch/tile/include/arch/trio_pcie_rc_def.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2012 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.
+ */
+
+/* Machine-generated file; do not edit. */
+
+#ifndef __ARCH_TRIO_PCIE_RC_DEF_H__
+#define __ARCH_TRIO_PCIE_RC_DEF_H__
+#define TRIO_PCIE_RC_DEVICE_CAP 0x0074
+#define TRIO_PCIE_RC_DEVICE_CONTROL 0x0078
+#define TRIO_PCIE_RC_DEVICE_ID_VEN_ID 0x0000
+#define TRIO_PCIE_RC_DEVICE_ID_VEN_ID__DEV_ID_SHIFT 16
+#define TRIO_PCIE_RC_REVISION_ID 0x0008
+#endif /* !defined(__ARCH_TRIO_PCIE_RC_DEF_H__) */
diff --git a/arch/tile/include/arch/trio_shm.h b/arch/tile/include/arch/trio_shm.h
new file mode 100644
index 0000000..3382e38
--- /dev/null
+++ b/arch/tile/include/arch/trio_shm.h
@@ -0,0 +1,125 @@
+/*
+ * Copyright 2012 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.
+ */
+
+/* Machine-generated file; do not edit. */
+
+
+#ifndef __ARCH_TRIO_SHM_H__
+#define __ARCH_TRIO_SHM_H__
+
+#include <arch/abi.h>
+#include <arch/trio_shm_def.h>
+
+#ifndef __ASSEMBLER__
+/**
+ * TRIO DMA Descriptor.
+ * The TRIO DMA descriptor is written by software and consumed by hardware.
+ * It is used to specify the location of transaction data in the IO and Tile
+ * domains.
+ */
+
+__extension__
+typedef union
+{
+ struct
+ {
+ /* Word 0 */
+
+#ifndef __BIG_ENDIAN__
+ /** Tile side virtual address. */
+ int_reg_t va : 42;
+ /**
+ * Encoded size of buffer used on push DMA when C=1:
+ * 0 = 128 bytes
+ * 1 = 256 bytes
+ * 2 = 512 bytes
+ * 3 = 1024 bytes
+ * 4 = 1664 bytes
+ * 5 = 4096 bytes
+ * 6 = 10368 bytes
+ * 7 = 16384 bytes
+ */
+ uint_reg_t bsz : 3;
+ /**
+ * Chaining designation. Always zero for pull DMA
+ * 0 : Unchained buffer pointer
+ * 1 : Chained buffer pointer. Next buffer descriptor (e.g. VA) stored
+ * in 1st 8-bytes in buffer. For chained buffers, first 8-bytes of each
+ * buffer contain the next buffer descriptor formatted exactly like a PDE
+ * buffer descriptor. This allows a chained PDE buffer to be sent using
+ * push DMA.
+ */
+ uint_reg_t c : 1;
+ /**
+ * Notification interrupt will be delivered when the transaction has
+ * completed (all data has been read from or written to the Tile-side
+ * buffer).
+ */
+ uint_reg_t notif : 1;
+ /**
+ * When 0, the XSIZE field specifies the total byte count for the
+ * transaction. When 1, the XSIZE field is encoded as 2^(N+14) for N in
+ * {0..6}:
+ * 0 = 16KB
+ * 1 = 32KB
+ * 2 = 64KB
+ * 3 = 128KB
+ * 4 = 256KB
+ * 5 = 512KB
+ * 6 = 1MB
+ * All other encodings of the XSIZE field are reserved when SMOD=1
+ */
+ uint_reg_t smod : 1;
+ /**
+ * Total number of bytes to move for this transaction. When SMOD=1,
+ * this field is encoded - see SMOD description.
+ */
+ uint_reg_t xsize : 14;
+ /** Reserved. */
+ uint_reg_t __reserved_0 : 1;
+ /**
+ * Generation number. Used to indicate a valid descriptor in ring. When
+ * a new descriptor is written into the ring, software must toggle this
+ * bit. The net effect is that the GEN bit being written into new
+ * descriptors toggles each time the ring tail pointer wraps.
+ */
+ uint_reg_t gen : 1;
+#else /* __BIG_ENDIAN__ */
+ uint_reg_t gen : 1;
+ uint_reg_t __reserved_0 : 1;
+ uint_reg_t xsize : 14;
+ uint_reg_t smod : 1;
+ uint_reg_t notif : 1;
+ uint_reg_t c : 1;
+ uint_reg_t bsz : 3;
+ int_reg_t va : 42;
+#endif
+
+ /* Word 1 */
+
+#ifndef __BIG_ENDIAN__
+ /** IO-side address */
+ uint_reg_t io_address : 64;
+#else /* __BIG_ENDIAN__ */
+ uint_reg_t io_address : 64;
+#endif
+
+ };
+
+ /** Word access */
+ uint_reg_t words[2];
+} TRIO_DMA_DESC_t;
+#endif /* !defined(__ASSEMBLER__) */
+
+#endif /* !defined(__ARCH_TRIO_SHM_H__) */
diff --git a/arch/tile/include/arch/trio_shm_def.h b/arch/tile/include/arch/trio_shm_def.h
new file mode 100644
index 0000000..72a59c8
--- /dev/null
+++ b/arch/tile/include/arch/trio_shm_def.h
@@ -0,0 +1,19 @@
+/*
+ * Copyright 2012 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.
+ */
+
+/* Machine-generated file; do not edit. */
+
+#ifndef __ARCH_TRIO_SHM_DEF_H__
+#define __ARCH_TRIO_SHM_DEF_H__
+#endif /* !defined(__ARCH_TRIO_SHM_DEF_H__) */
diff --git a/arch/tile/include/gxio/iorpc_trio.h b/arch/tile/include/gxio/iorpc_trio.h
new file mode 100644
index 0000000..f13677d
--- /dev/null
+++ b/arch/tile/include/gxio/iorpc_trio.h
@@ -0,0 +1,97 @@
+/*
+ * Copyright 2012 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! */
+#ifndef __GXIO_TRIO_LINUX_RPC_H__
+#define __GXIO_TRIO_LINUX_RPC_H__
+
+#include <hv/iorpc.h>
+
+#include <hv/drv_trio_intf.h>
+#include <gxio/trio.h>
+#include <gxio/kiorpc.h>
+#include <linux/string.h>
+#include <linux/module.h>
+#include <asm/pgtable.h>
+
+#define GXIO_TRIO_OP_ALLOC_ASIDS IORPC_OPCODE(IORPC_FORMAT_NONE, 0x1400)
+
+#define GXIO_TRIO_OP_ALLOC_MEMORY_MAPS IORPC_OPCODE(IORPC_FORMAT_NONE, 0x1402)
+
+#define GXIO_TRIO_OP_ALLOC_PIO_REGIONS IORPC_OPCODE(IORPC_FORMAT_NONE, 0x140e)
+#define GXIO_TRIO_OP_INIT_PIO_REGION_AUX IORPC_OPCODE(IORPC_FORMAT_NONE, 0x140f)
+
+#define GXIO_TRIO_OP_INIT_MEMORY_MAP_MMU_AUX IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x1418)
+#define GXIO_TRIO_OP_GET_PORT_PROPERTY IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x1419)
+#define GXIO_TRIO_OP_CONFIG_LEGACY_INTR IORPC_OPCODE(IORPC_FORMAT_KERNEL_INTERRUPT, 0x141a)
+#define GXIO_TRIO_OP_CONFIG_MSI_INTR IORPC_OPCODE(IORPC_FORMAT_KERNEL_INTERRUPT, 0x141b)
+
+#define GXIO_TRIO_OP_SET_MPS_MRS IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x141d)
+#define GXIO_TRIO_OP_FORCE_RC_LINK_UP IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x141e)
+#define GXIO_TRIO_OP_FORCE_EP_LINK_UP IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x141f)
+#define GXIO_TRIO_OP_GET_MMIO_BASE IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x8000)
+#define GXIO_TRIO_OP_CHECK_MMIO_OFFSET IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x8001)
+
+int gxio_trio_alloc_asids(gxio_trio_context_t * context, unsigned int count,
+ unsigned int first, unsigned int flags);
+
+
+int gxio_trio_alloc_memory_maps(gxio_trio_context_t * context,
+ unsigned int count, unsigned int first,
+ unsigned int flags);
+
+
+int gxio_trio_alloc_pio_regions(gxio_trio_context_t * context,
+ unsigned int count, unsigned int first,
+ unsigned int flags);
+
+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);
+
+
+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,
+ unsigned int node,
+ unsigned int order_mode);
+
+int gxio_trio_get_port_property(gxio_trio_context_t * context,
+ struct pcie_trio_ports_property *trio_ports);
+
+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);
+
+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,
+ unsigned int asid);
+
+
+int gxio_trio_set_mps_mrs(gxio_trio_context_t * context, uint16_t mps,
+ uint16_t mrs, unsigned int mac);
+
+int gxio_trio_force_rc_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);
+
+int gxio_trio_get_mmio_base(gxio_trio_context_t * context, HV_PTE *base);
+
+int gxio_trio_check_mmio_offset(gxio_trio_context_t * context,
+ unsigned long offset, unsigned long size);
+
+#endif /* !__GXIO_TRIO_LINUX_RPC_H__ */
diff --git a/arch/tile/include/gxio/trio.h b/arch/tile/include/gxio/trio.h
new file mode 100644
index 0000000..4d79014
--- /dev/null
+++ b/arch/tile/include/gxio/trio.h
@@ -0,0 +1,304 @@
+/*
+ * Copyright 2012 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.
+ */
+
+/*
+ *
+ * An API for allocating, configuring, and manipulating TRIO hardware
+ * resources
+ */
+
+/*
+ *
+ * The TILE-Gx TRIO shim provides connections to external devices via
+ * PCIe or other transaction IO standards. The gxio_trio_ API,
+ * declared in <gxio/trio.h>, allows applications to allocate and
+ * configure TRIO IO resources like DMA command rings, memory map
+ * windows, and device interrupts. The following sections introduce
+ * the various components of the API. We strongly recommend reading
+ * the TRIO section of the IO Device Guide (UG404) before working with
+ * this API.
+ *
+ * @section trio__ingress TRIO Ingress Hardware Resources
+ *
+ * The TRIO ingress hardware is responsible for examining incoming
+ * PCIe or StreamIO packets and choosing a processing mechanism based
+ * on the packets' bus address. The gxio_trio_ API can be used to
+ * configure different handlers for different ranges of bus address
+ * space. The user can configure "mapped memory" and "scatter queue"
+ * regions to match incoming packets within 4kB-aligned ranges of bus
+ * addresses. Each range specifies a different set of mapping
+ * parameters to be applied when handling the ingress packet. The
+ * following sections describe how to work with MapMem and scatter
+ * queue regions.
+ *
+ * @subsection trio__mapmem TRIO MapMem Regions
+ *
+ * TRIO mapped memory (or MapMem) regions allow the user to map
+ * incoming read and write requests directly to the application's
+ * memory space. MapMem regions are allocated via
+ * gxio_trio_alloc_memory_maps(). Given an integer MapMem number,
+ * applications can use gxio_trio_init_memory_map() to specify the
+ * range of bus addresses that will match the region and the range of
+ * virtual addresses to which those packets will be applied.
+ *
+ * As with many other gxio APIs, the programmer must be sure to
+ * register memory pages that will be used with MapMem regions. Pages
+ * can be registered with TRIO by allocating an ASID (address space
+ * identifier) and then using gxio_trio_register_page() to register up to
+ * 16 pages with the hardware. The initialization functions for
+ * resources that require registered memory (MapMem, scatter queues,
+ * push DMA, and pull DMA) then take an 'asid' parameter in order to
+ * configure which set of registered pages is used by each resource.
+ *
+ * @subsection trio__scatter_queue TRIO Scatter Queues
+ *
+ * The TRIO shim's scatter queue regions allow users to dynamically
+ * map buffers from a large address space into a small range of bus
+ * addresses. This is particularly helpful for PCIe endpoint devices,
+ * where the host generally limits the size of BARs to tens of
+ * megabytes.
+ *
+ * Each scatter queue consists of a memory map region, a queue of
+ * tile-side buffer VAs to be mapped to that region, and a bus-mapped
+ * "doorbell" register that the remote endpoint can write to trigger a
+ * dequeue of the current buffer VA, thus swapping in a new buffer.
+ * The VAs pushed onto a scatter queue must be 4kB aligned, so
+ * applications may need to use higher-level protocols to inform
+ * remote entities that they should apply some additional, sub-4kB
+ * offset when reading or writing the scatter queue region. For more
+ * information, see the IO Device Guide (UG404).
+ *
+ * @section trio__egress TRIO Egress Hardware Resources
+ *
+ * The TRIO shim supports two mechanisms for egress packet generation:
+ * programmed IO (PIO) and push/pull DMA. PIO allows applications to
+ * create MMIO mappings for PCIe or StreamIO address space, such that
+ * the application can generate word-sized read or write transactions
+ * by issuing load or store instructions. Push and pull DMA are tuned
+ * for larger transactions; they use specialized hardware engines to
+ * transfer large blocks of data at line rate.
+ *
+ * @subsection trio__pio TRIO Programmed IO
+ *
+ * Programmed IO allows applications to create MMIO mappings for PCIe
+ * or StreamIO address space. The hardware PIO regions support access
+ * to PCIe configuration, IO, and memory space, but the gxio_trio API
+ * only supports memory space accesses. PIO regions are allocated
+ * with gxio_trio_alloc_pio_regions() and initialized via
+ * gxio_trio_init_pio_region(). Once a region is bound to a range of
+ * bus address via the initialization function, the application can
+ * use gxio_trio_map_pio_region() to create MMIO mappings from its VA
+ * space onto the range of bus addresses supported by the PIO region.
+ *
+ * @subsection trio_dma TRIO Push and Pull DMA
+ *
+ * The TRIO push and pull DMA engines allow users to copy blocks of
+ * data between application memory and the bus. Push DMA generates
+ * write packets that copy from application memory to the bus and pull
+ * DMA generates read packets that copy from the bus into application
+ * memory. The DMA engines are managed via an API that is very
+ * similar to the mPIPE eDMA interface. For a detailed explanation of
+ * the eDMA queue API, see @ref gxio_mpipe_wrappers.
+ *
+ * Push and pull DMA queues are allocated via
+ * gxio_trio_alloc_push_dma_ring() / gxio_trio_alloc_pull_dma_ring().
+ * Once allocated, users generally use a ::gxio_trio_dma_queue_t
+ * object to manage the queue, providing easy wrappers for reserving
+ * command slots in the DMA command ring, filling those slots, and
+ * waiting for commands to complete. DMA queues can be initialized
+ * via gxio_trio_init_push_dma_queue() or
+ * gxio_trio_init_pull_dma_queue().
+ *
+ * See @ref trio/push_dma/app.c for an example of how to use push DMA.
+ *
+ * @section trio_shortcomings Plans for Future API Revisions
+ *
+ * The API and simulation framework is incomplete. Future features
+ * include:
+ *
+ * - Support for larger page sizes. Each hardware IOTLB can only map
+ * 16 pages at a time, so applications are currently limited to 16 *
+ * 16MB = 256MB of packet memory. Larger page sizes will allow
+ * applications to map arbitrary amounts of packet memory.
+ *
+ * - Support for reset and deallocation of resources.
+ *
+ * - Support for pull DMA.
+ *
+ * - Support for interrupt regions and user-space interrupt delivery.
+ *
+ * - Support for getting BAR mappings and reserving regions of BAR
+ * address space.
+ */
+#ifndef _GXIO_TRIO_H_
+#define _GXIO_TRIO_H_
+
+#include <linux/types.h>
+
+#include "common.h"
+#include "dma_queue.h"
+
+#include <arch/trio_constants.h>
+#include <arch/trio.h>
+#include <arch/trio_pcie_intfc.h>
+#include <arch/trio_pcie_rc.h>
+#include <arch/trio_shm.h>
+#include <hv/drv_trio_intf.h>
+#include <hv/iorpc.h>
+
+/* A context object used to manage TRIO hardware resources. */
+typedef struct {
+
+ /* File descriptor for calling up to Linux (and thus the HV). */
+ int fd;
+
+ /* The VA at which the MAC MMIO registers are mapped. */
+ char *mmio_base_mac;
+
+ /* The VA at which the PIO config space are mapped for each PCIe MAC.
+ Gx36 has max 3 PCIe MACs per TRIO shim. */
+ char *mmio_base_pio_cfg[TILEGX_TRIO_PCIES];
+
+#ifdef USE_SHARED_PCIE_CONFIG_REGION
+ /* Index of the shared PIO region for PCI config access. */
+ int pio_cfg_index;
+#else
+ /* Index of the PIO region for PCI config access per MAC. */
+ int pio_cfg_index[TILEGX_TRIO_PCIES];
+#endif
+
+ /* The VA at which the push DMA MMIO registers are mapped. */
+ char *mmio_push_dma[TRIO_NUM_PUSH_DMA_RINGS];
+
+ /* The VA at which the pull DMA MMIO registers are mapped. */
+ char *mmio_pull_dma[TRIO_NUM_PUSH_DMA_RINGS];
+
+ /* Application space ID. */
+ unsigned int asid;
+
+} gxio_trio_context_t;
+
+/* Command descriptor for push or pull DMA. */
+typedef TRIO_DMA_DESC_t gxio_trio_dma_desc_t;
+
+/* A convenient, thread-safe interface to an eDMA ring. */
+typedef struct {
+
+ /* State object for tracking head and tail pointers. */
+ __gxio_dma_queue_t dma_queue;
+
+ /* The ring entries. */
+ gxio_trio_dma_desc_t *dma_descs;
+
+ /* The number of entries minus one. */
+ unsigned long mask_num_entries;
+
+ /* The log2() of the number of entries. */
+ unsigned int log2_num_entries;
+
+} gxio_trio_dma_queue_t;
+
+/* Initialize a TRIO context.
+ *
+ * This function allocates a TRIO "service domain" and maps the MMIO
+ * registers into the the caller's VA space.
+ *
+ * @param trio_index Which TRIO shim; Gx36 must pass 0.
+ * @param context Context object to be initialized.
+ */
+extern int gxio_trio_init(gxio_trio_context_t *context,
+ unsigned int trio_index);
+
+/* This indicates that an ASID hasn't been allocated. */
+#define GXIO_ASID_NULL -1
+
+/* Ordering modes for map memory regions and scatter queue regions. */
+typedef enum gxio_trio_order_mode_e {
+ /* Writes are not ordered. Reads always wait for previous writes. */
+ GXIO_TRIO_ORDER_MODE_UNORDERED =
+ TRIO_MAP_MEM_SETUP__ORDER_MODE_VAL_UNORDERED,
+ /* Both writes and reads wait for previous transactions to complete. */
+ GXIO_TRIO_ORDER_MODE_STRICT =
+ TRIO_MAP_MEM_SETUP__ORDER_MODE_VAL_STRICT,
+ /* Writes are ordered unless the incoming packet has the
+ relaxed-ordering attributes set. */
+ GXIO_TRIO_ORDER_MODE_OBEY_PACKET =
+ TRIO_MAP_MEM_SETUP__ORDER_MODE_VAL_REL_ORD
+} gxio_trio_order_mode_t;
+
+/* Initialize a memory mapping region.
+ *
+ * @param context An initialized TRIO context.
+ * @param map A Memory map region allocated by gxio_trio_alloc_memory_map().
+ * @param target_mem VA of backing memory, should be registered via
+ * gxio_trio_register_page() and aligned to 4kB.
+ * @param target_size Length of the memory mapping, must be a multiple
+ * of 4kB.
+ * @param asid ASID to be used for Tile-side address translation.
+ * @param mac MAC number.
+ * @param bus_address Bus address at which the mapping starts.
+ * @param order_mode Memory ordering mode for this mapping.
+ * @return Zero on success, else ::GXIO_TRIO_ERR_BAD_MEMORY_MAP,
+ * GXIO_TRIO_ERR_BAD_ASID, or ::GXIO_TRIO_ERR_BAD_BUS_RANGE.
+ */
+extern int gxio_trio_init_memory_map(gxio_trio_context_t *context,
+ unsigned int map, void *target_mem,
+ size_t target_size, unsigned int asid,
+ unsigned int mac, uint64_t bus_address,
+ gxio_trio_order_mode_t order_mode);
+
+/* Flags that can be passed to resource allocation functions. */
+enum gxio_trio_alloc_flags_e {
+ GXIO_TRIO_ALLOC_FIXED = HV_TRIO_ALLOC_FIXED,
+};
+
+/* Flags that can be passed to memory registration functions. */
+enum gxio_trio_mem_flags_e {
+ /* Do not fill L3 when writing, and invalidate lines upon egress. */
+ GXIO_TRIO_MEM_FLAG_NT_HINT = IORPC_MEM_BUFFER_FLAG_NT_HINT,
+
+ /* L3 cache fills should only populate IO cache ways. */
+ GXIO_TRIO_MEM_FLAG_IO_PIN = IORPC_MEM_BUFFER_FLAG_IO_PIN,
+};
+
+/* Flag indicating a request generator uses a special traffic
+ class. */
+#define GXIO_TRIO_FLAG_TRAFFIC_CLASS(N) HV_TRIO_FLAG_TC(N)
+
+/* Flag indicating a request generator uses a virtual function
+ number. */
+#define GXIO_TRIO_FLAG_VFUNC(N) HV_TRIO_FLAG_VFUNC(N)
+
+/*****************************************************************
+ * Memory Registration *
+ ******************************************************************/
+
+/* Allocate Application Space Identifiers (ASIDs). Each ASID can
+ * register up to 16 page translations. ASIDs are used by memory map
+ * regions, scatter queues, and DMA queues to translate application
+ * VAs into memory system PAs.
+ *
+ * @param context An initialized TRIO context.
+ * @param count Number of ASIDs required.
+ * @param first Index of first ASID if ::GXIO_TRIO_ALLOC_FIXED flag
+ * is set, otherwise ignored.
+ * @param flags Flag bits, including bits from ::gxio_trio_alloc_flags_e.
+ * @return Index of first ASID, or ::GXIO_TRIO_ERR_NO_ASID if allocation
+ * failed.
+ */
+extern int gxio_trio_alloc_asids(gxio_trio_context_t *context,
+ unsigned int count, unsigned int first,
+ unsigned int flags);
+
+#endif /* ! _GXIO_TRIO_H_ */
diff --git a/arch/tile/include/hv/drv_trio_intf.h b/arch/tile/include/hv/drv_trio_intf.h
new file mode 100644
index 0000000..ef9f3f5
--- /dev/null
+++ b/arch/tile/include/hv/drv_trio_intf.h
@@ -0,0 +1,195 @@
+/*
+ * Copyright 2012 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.
+ */
+
+/**
+ * Interface definitions for the trio driver.
+ */
+
+#ifndef _SYS_HV_DRV_TRIO_INTF_H
+#define _SYS_HV_DRV_TRIO_INTF_H
+
+#include <arch/trio.h>
+
+/** The vendor ID for all Tilera processors. */
+#define TILERA_VENDOR_ID 0x1a41
+
+/** The device ID for the Gx36 processor. */
+#define TILERA_GX36_DEV_ID 0x0200
+
+/** Device ID for our internal bridge when running as RC. */
+#define TILERA_GX36_RC_DEV_ID 0x2000
+
+/** Maximum number of TRIO interfaces. */
+#define TILEGX_NUM_TRIO 2
+
+/** Gx36 has max 3 PCIe MACs per TRIO interface. */
+#define TILEGX_TRIO_PCIES 3
+
+/** Specify port properties for a PCIe MAC. */
+struct pcie_port_property
+{
+ /** If true, the link can be configured in PCIe root complex mode. */
+ uint8_t allow_rc: 1;
+
+ /** If true, the link can be configured in PCIe endpoint mode. */
+ uint8_t allow_ep: 1;
+
+ /** If true, the link can be configured in StreamIO mode. */
+ uint8_t allow_sio: 1;
+
+ /** If true, the link is allowed to support 1-lane operation. Software
+ * will not consider it an error if the link comes up as a x1 link. */
+ uint8_t allow_x1: 1;
+
+ /** If true, the link is allowed to support 2-lane operation. Software
+ * will not consider it an error if the link comes up as a x2 link. */
+ uint8_t allow_x2: 1;
+
+ /** If true, the link is allowed to support 4-lane operation. Software
+ * will not consider it an error if the link comes up as a x4 link. */
+ uint8_t allow_x4: 1;
+
+ /** If true, the link is allowed to support 8-lane operation. Software
+ * will not consider it an error if the link comes up as a x8 link. */
+ uint8_t allow_x8: 1;
+
+ /** Reserved. */
+ uint8_t reserved: 1;
+
+};
+
+/** Configurations can be issued to configure a char stream interrupt. */
+typedef enum pcie_stream_intr_config_sel_e
+{
+ /** Interrupt configuration for memory map regions. */
+ MEM_MAP_SEL,
+
+ /** Interrupt configuration for push DMAs. */
+ PUSH_DMA_SEL,
+
+ /** Interrupt configuration for pull DMAs. */
+ PULL_DMA_SEL,
+}
+pcie_stream_intr_config_sel_t;
+
+
+/** The mmap file offset (PA) of the TRIO config region. */
+#define HV_TRIO_CONFIG_OFFSET \
+ ((unsigned long long)TRIO_MMIO_ADDRESS_SPACE__REGION_VAL_CFG << \
+ TRIO_MMIO_ADDRESS_SPACE__REGION_SHIFT)
+
+/** The maximum size of the TRIO config region. */
+#define HV_TRIO_CONFIG_SIZE \
+ (1ULL << TRIO_CFG_REGION_ADDR__REGION_SHIFT)
+
+/** Size of the config region mapped into client. We can't use
+ * TRIO_MMIO_ADDRESS_SPACE__OFFSET_WIDTH because it
+ * will require the kernel to allocate 4GB VA space
+ * from the VMALLOC region which has a total range
+ * of 4GB.
+ */
+#define HV_TRIO_CONFIG_IOREMAP_SIZE \
+ ((uint64_t) 1 << TRIO_CFG_REGION_ADDR__PROT_SHIFT)
+
+/** The mmap file offset (PA) of a scatter queue region. */
+#define HV_TRIO_SQ_OFFSET(queue) \
+ (((unsigned long long)TRIO_MMIO_ADDRESS_SPACE__REGION_VAL_MAP_SQ << \
+ TRIO_MMIO_ADDRESS_SPACE__REGION_SHIFT) | \
+ ((queue) << TRIO_MAP_SQ_REGION_ADDR__SQ_SEL_SHIFT))
+
+/** The maximum size of a scatter queue region. */
+#define HV_TRIO_SQ_SIZE \
+ (1ULL << TRIO_MAP_SQ_REGION_ADDR__SQ_SEL_SHIFT)
+
+
+/** The "hardware MMIO region" of the first PIO region. */
+#define HV_TRIO_FIRST_PIO_REGION 8
+
+/** The mmap file offset (PA) of a PIO region. */
+#define HV_TRIO_PIO_OFFSET(region) \
+ (((unsigned long long)(region) + HV_TRIO_FIRST_PIO_REGION) \
+ << TRIO_PIO_REGIONS_ADDR__REGION_SHIFT)
+
+/** The maximum size of a PIO region. */
+#define HV_TRIO_PIO_SIZE (1ULL << TRIO_PIO_REGIONS_ADDR__ADDR_WIDTH)
+
+
+/** The mmap file offset (PA) of a push DMA region. */
+#define HV_TRIO_PUSH_DMA_OFFSET(ring) \
+ (((unsigned long long)TRIO_MMIO_ADDRESS_SPACE__REGION_VAL_PUSH_DMA << \
+ TRIO_MMIO_ADDRESS_SPACE__REGION_SHIFT) | \
+ ((ring) << TRIO_PUSH_DMA_REGION_ADDR__RING_SEL_SHIFT))
+
+/** The mmap file offset (PA) of a pull DMA region. */
+#define HV_TRIO_PULL_DMA_OFFSET(ring) \
+ (((unsigned long long)TRIO_MMIO_ADDRESS_SPACE__REGION_VAL_PULL_DMA << \
+ TRIO_MMIO_ADDRESS_SPACE__REGION_SHIFT) | \
+ ((ring) << TRIO_PULL_DMA_REGION_ADDR__RING_SEL_SHIFT))
+
+/** The maximum size of a DMA region. */
+#define HV_TRIO_DMA_REGION_SIZE \
+ (1ULL << TRIO_PUSH_DMA_REGION_ADDR__RING_SEL_SHIFT)
+
+
+/** The mmap file offset (PA) of a Mem-Map interrupt region. */
+#define HV_TRIO_MEM_MAP_INTR_OFFSET(map) \
+ (((unsigned long long)TRIO_MMIO_ADDRESS_SPACE__REGION_VAL_MAP_MEM << \
+ TRIO_MMIO_ADDRESS_SPACE__REGION_SHIFT) | \
+ ((map) << TRIO_MAP_MEM_REGION_ADDR__MAP_SEL_SHIFT))
+
+/** The maximum size of a Mem-Map interrupt region. */
+#define HV_TRIO_MEM_MAP_INTR_SIZE \
+ (1ULL << TRIO_MAP_MEM_REGION_ADDR__MAP_SEL_SHIFT)
+
+
+/** A flag bit indicating a fixed resource allocation. */
+#define HV_TRIO_ALLOC_FIXED 0x01
+
+/** TRIO requires that all mappings have 4kB aligned start addresses. */
+#define HV_TRIO_PAGE_SHIFT 12
+
+/** TRIO requires that all mappings have 4kB aligned start addresses. */
+#define HV_TRIO_PAGE_SIZE (1ull << HV_TRIO_PAGE_SHIFT)
+
+
+/* Specify all PCIe port properties for a TRIO. */
+struct pcie_trio_ports_property
+{
+ struct pcie_port_property ports[TILEGX_TRIO_PCIES];
+};
+
+/* Flags indicating traffic class. */
+#define HV_TRIO_FLAG_TC_SHIFT 4
+#define HV_TRIO_FLAG_TC_RMASK 0xf
+#define HV_TRIO_FLAG_TC(N) \
+ ((((N) & HV_TRIO_FLAG_TC_RMASK) + 1) << HV_TRIO_FLAG_TC_SHIFT)
+
+/* Flags indicating virtual functions. */
+#define HV_TRIO_FLAG_VFUNC_SHIFT 8
+#define HV_TRIO_FLAG_VFUNC_RMASK 0xff
+#define HV_TRIO_FLAG_VFUNC(N) \
+ ((((N) & HV_TRIO_FLAG_VFUNC_RMASK) + 1) << HV_TRIO_FLAG_VFUNC_SHIFT)
+
+
+/* Flag indicating an ordered PIO region. */
+#define HV_TRIO_PIO_FLAG_ORDERED (1 << 16)
+
+/* Flags indicating special types of PIO regions. */
+#define HV_TRIO_PIO_FLAG_SPACE_SHIFT 17
+#define HV_TRIO_PIO_FLAG_SPACE_MASK (0x3 << HV_TRIO_PIO_FLAG_SPACE_SHIFT)
+#define HV_TRIO_PIO_FLAG_CONFIG_SPACE (0x1 << HV_TRIO_PIO_FLAG_SPACE_SHIFT)
+#define HV_TRIO_PIO_FLAG_IO_SPACE (0x2 << HV_TRIO_PIO_FLAG_SPACE_SHIFT)
+
+
+#endif /* _SYS_HV_DRV_TRIO_INTF_H */
--
1.6.5.2
--
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