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Commit 4776e929 authored by Jesse Barnes's avatar Jesse Barnes Committed by David Mosberger
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[PATCH] ia64: more SN2 cleanups 

Here's another sn2 update.  It includes a bunch of misc. bits:
  o a bunch of cleanup from hch
  o addition of DMA routine wrappers
  o update of other PCI routines
  o topology.h prototype addition.
parent 80baf699
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Showing with 165 additions and 1609 deletions
arch/ia64/Kconfig
View file @ 4776e929
......@@ -292,16 +292,6 @@ config IOSAPIC
depends on IA64_GENERIC || IA64_DIG || IA64_HP_ZX1 || IA64_SGI_SN2
default y
config IA64_SGI_SN
bool
depends on IA64_SGI_SN2
default y
config HWGFS_FS
bool
depends on IA64_SGI_SN2
default y
config IA64_SGI_SN_DEBUG
bool "Enable extra debugging code"
depends on IA64_SGI_SN2
......@@ -340,14 +330,6 @@ config PERCPU_IRQ
depends on IA64_SGI_SN2
default y
config PCIBA
tristate "PCIBA support"
depends on IA64_SGI_SN2
help
IRIX PCIBA-inspired user mode PCI interface for the SGI SN (Scalable
NUMA) platform for IA-64. Unless you are compiling a kernel for an
SGI SN IA-64 box, say N.
# On IA-64, we always want an ELF /proc/kcore.
config KCORE_ELF
bool
......
arch/ia64/Makefile
View file @ 4776e929
......@@ -47,7 +47,6 @@ ifeq ($(GCC_VERSION),3)
endif
cflags-$(CONFIG_ITANIUM_BSTEP_SPECIFIC) += -mb-step
cflags-$(CONFIG_IA64_SGI_SN) += -DBRINGUP
CFLAGS += $(cflags-y)
head-y := arch/ia64/kernel/head.o arch/ia64/kernel/init_task.o
......@@ -58,7 +57,7 @@ core-$(CONFIG_IA32_SUPPORT) += arch/ia64/ia32/
core-$(CONFIG_IA64_DIG) += arch/ia64/dig/
core-$(CONFIG_IA64_GENERIC) += arch/ia64/dig/
core-$(CONFIG_IA64_HP_ZX1) += arch/ia64/dig/
core-$(CONFIG_IA64_SGI_SN) += arch/ia64/sn/
core-$(CONFIG_IA64_SGI_SN2) += arch/ia64/sn/
drivers-$(CONFIG_PCI) += arch/ia64/pci/
drivers-$(CONFIG_IA64_HP_SIM) += arch/ia64/hp/sim/
......
arch/ia64/sn/io/Makefile
View file @ 4776e929
......@@ -9,7 +9,7 @@
# Makefile for the sn io routines.
#
EXTRA_CFLAGS := -DLITTLE_ENDIAN -DSHUB_SWAP_WAR
EXTRA_CFLAGS := -DLITTLE_ENDIAN
obj-y += sgi_if.o xswitch.o sgi_io_sim.o cdl.o ate_utils.o \
io.o machvec/ drivers/ platform_init/ sn2/ hwgfs/
\ No newline at end of file
io.o machvec/ drivers/ platform_init/ sn2/ hwgfs/
arch/ia64/sn/io/drivers/Makefile
View file @ 4776e929
......@@ -10,5 +10,3 @@
EXTRA_CFLAGS := -DLITTLE_ENDIAN
obj-y += ioconfig_bus.o ifconfig_net.o
obj-$(CONFIG_PCIBA) += pciba.o
arch/ia64/sn/io/drivers/pciba.c deleted 100644 → 0
View file @ 80baf699
/*
* arch/ia64/sn/io/pciba.c
*
* IRIX PCIBA-inspired user mode PCI interface
*
* requires: devfs
*
* device nodes show up in /dev/pci/BB/SS.F (where BB is the bus the
* device is on, SS is the slot the device is in, and F is the
* device's function on a multi-function card).
*
* when compiled into the kernel, it will only be initialized by the
* sgi sn1 specific initialization code. in this case, device nodes
* are under /dev/hw/..../
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file "COPYING" in the main directory of
* this archive for more details.
*
* Copyright (C) 2001-2003 Silicon Graphics, Inc. All rights reserved.
*
* 03262001 - Initial version by Chad Talbott
*/
/* jesse's beefs:
register_pci_device should be documented
grossness with do_swap should be documented
big, gross union'ized node_data should be replaced with independent
structures
replace global list of nodes with global lists of resources. could
use object oriented approach of allocating and cleaning up
resources.
*/
#include <linux/config.h>
#include <linux/module.h>
#include <asm/sn/sgi.h>
#include <asm/sn/iograph.h>
#include <asm/sn/invent.h>
#include <asm/sn/hcl.h>
#include <asm/sn/labelcl.h>
#include <linux/pci.h>
#include <linux/list.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/mman.h>
#include <linux/init.h>
#include <linux/raw.h>
#include <linux/capability.h>
#include <asm/uaccess.h>
#include <asm/sn/sgi.h>
#include <asm/io.h>
#include <asm/pgalloc.h>
#include <asm/page.h>
#include <asm/sn/pci/pciba.h>
MODULE_DESCRIPTION("User mode PCI interface");
MODULE_AUTHOR("Chad Talbott");
#undef DEBUG_PCIBA
/* #define DEBUG_PCIBA */
#undef TRACE_PCIBA
/* #define TRACE_PCIBA */
#if defined(DEBUG_PCIBA)
# define DPRINTF(x...) printk(KERN_DEBUG x)
#else
# define DPRINTF(x...)
#endif
#if defined(TRACE_PCIBA)
# if defined(__GNUC__)
# define TRACE() printk(KERN_DEBUG "%s:%d:%s\n", \
__FILE__, __LINE__, __FUNCTION__)
# else
# define TRACE() printk(KERN_DEBUG "%s:%d\n", __LINE__, __FILE__)
# endif
#else
# define TRACE()
#endif
typedef enum { failure, success } status;
typedef enum { false, true } boolean;
/* major data structures:
struct node_data -
one for each file registered with devfs. contains everything
that any file's fops would need to know about.
struct dma_allocation -
a single DMA allocation. only the 'dma' nodes care about
these. they are there primarily to allow the driver to look
up the kernel virtual address of dma buffers allocated by
pci_alloc_consistent, as the application is only given the
physical address (to program the device's dma, presumably) and
cannot supply the kernel virtual address when freeing the
buffer.
it's also useful to maintain a list of buffers allocated
through a specific node to allow some sanity checking by this
driver. this prevents (for example) a broken application from
freeing buffers that it didn't allocate, or buffers allocated
on another node.
global_node_list -
a list of all nodes allocated. this allows the driver to free
all the memory it has 'kmalloc'd in case of an error, or on
module removal.
global_dma_list -
a list of all dma buffers allocated by this driver. this
allows the driver to 'pci_free_consistent' all buffers on
module removal or error.
*/
struct node_data {
/* flat list of all the device nodes. makes it easy to free
them all when we're unregistered */
struct list_head global_node_list;
vertex_hdl_t devfs_handle;
void (* cleanup)(struct node_data *);
union {
struct {
struct pci_dev * dev;
struct list_head dma_allocs;
boolean mmapped;
} dma;
struct {
struct pci_dev * dev;
u32 saved_rom_base_reg;
boolean mmapped;
} rom;
struct {
struct resource * res;
} base;
struct {
struct pci_dev * dev;
} config;
} u;
};
struct dma_allocation {
struct list_head list;
dma_addr_t handle;
void * va;
size_t size;
};
static LIST_HEAD(global_node_list);
static LIST_HEAD(global_dma_list);
/* module entry points */
int __init pciba_init(void);
void __exit pciba_exit(void);
static status __init register_with_devfs(void);
static void __exit unregister_with_devfs(void);
static status __init register_pci_device(vertex_hdl_t device_dir_handle,
struct pci_dev * dev);
/* file operations */
static int generic_open(struct inode * inode, struct file * file);
static int rom_mmap(struct file * file, struct vm_area_struct * vma);
static int rom_release(struct inode * inode, struct file * file);
static int base_mmap(struct file * file, struct vm_area_struct * vma);
static int config_ioctl(struct inode * inode, struct file * file,
unsigned int cmd,
unsigned long arg);
static int dma_ioctl(struct inode * inode, struct file * file,
unsigned int cmd,
unsigned long arg);
static int dma_mmap(struct file * file, struct vm_area_struct * vma);
/* support routines */
static int mmap_pci_address(struct vm_area_struct * vma, unsigned long pci_va);
static int mmap_kernel_address(struct vm_area_struct * vma, void * kernel_va);
#ifdef DEBUG_PCIBA
static void dump_nodes(struct list_head * nodes);
static void dump_allocations(struct list_head * dalp);
#endif
/* file operations for each type of node */
static struct file_operations rom_fops = {
owner: THIS_MODULE,
mmap: rom_mmap,
open: generic_open,
release: rom_release
};
static struct file_operations base_fops = {
owner: THIS_MODULE,
mmap: base_mmap,
open: generic_open
};
static struct file_operations config_fops = {
owner: THIS_MODULE,
ioctl: config_ioctl,
open: generic_open
};
static struct file_operations dma_fops = {
owner: THIS_MODULE,
ioctl: dma_ioctl,
mmap: dma_mmap,
open: generic_open
};
module_init(pciba_init);
module_exit(pciba_exit);
int __init
pciba_init(void)
{
TRACE();
if (register_with_devfs() == failure)
return 1; /* failure */
printk("PCIBA (a user mode PCI interface) initialized.\n");
return 0; /* success */
}
void __exit
pciba_exit(void)
{
TRACE();
/* FIXME: should also free all that memory that we allocated
;) */
unregister_with_devfs();
}
# if 0
static void __exit
free_nodes(void)
{
struct node_data * nd;
TRACE();
list_for_each(nd, &node_list) {
kfree(list_entry(nd, struct nd, node_list));
}
}
#endif
static vertex_hdl_t pciba_devfs_handle;
extern vertex_hdl_t
devfn_to_vertex(unsigned char busnum, unsigned int devfn);
static status __init
register_with_devfs(void)
{
struct pci_dev * dev;
vertex_hdl_t device_dir_handle;
TRACE();
/* FIXME: don't forget /dev/.../pci/mem & /dev/.../pci/io */
pci_for_each_dev(dev) {
device_dir_handle = devfn_to_vertex(dev->bus->number,
dev->devfn);
if (device_dir_handle == NULL)
return failure;
if (register_pci_device(device_dir_handle, dev) == failure) {
hwgraph_vertex_destroy(pciba_devfs_handle);
return failure;
}
}
return success;
}
static void __exit
unregister_with_devfs(void)
{
struct list_head * lhp;
struct node_data * nd;
TRACE();
list_for_each(lhp, &global_node_list) {
nd = list_entry(lhp, struct node_data, global_node_list);
hwgraph_vertex_destroy(nd->devfs_handle);
}
}
struct node_data * new_node(void)
{
struct node_data * node;
TRACE();
node = kmalloc(sizeof(struct node_data), GFP_KERNEL);
if (node == NULL)
return NULL;
list_add(&node->global_node_list, &global_node_list);
return node;
}
void dma_cleanup(struct node_data * dma_node)
{
TRACE();
/* FIXME: should free these allocations */
#ifdef DEBUG_PCIBA
dump_allocations(&dma_node->u.dma.dma_allocs);
#endif
hwgraph_vertex_destroy(dma_node->devfs_handle);
}
void init_dma_node(struct node_data * node,
struct pci_dev * dev, vertex_hdl_t dh)
{
TRACE();
node->devfs_handle = dh;
node->u.dma.dev = dev;
node->cleanup = dma_cleanup;
INIT_LIST_HEAD(&node->u.dma.dma_allocs);
}
void rom_cleanup(struct node_data * rom_node)
{
TRACE();
if (rom_node->u.rom.mmapped)
pci_write_config_dword(rom_node->u.rom.dev,
PCI_ROM_ADDRESS,
rom_node->u.rom.saved_rom_base_reg);
hwgraph_vertex_destroy(rom_node->devfs_handle);
}
void init_rom_node(struct node_data * node,
struct pci_dev * dev, vertex_hdl_t dh)
{
TRACE();
node->devfs_handle = dh;
node->u.rom.dev = dev;
node->cleanup = rom_cleanup;
node->u.rom.mmapped = false;
}
static status __init
register_pci_device(vertex_hdl_t device_dir_handle, struct pci_dev * dev)
{
struct node_data * nd;
char devfs_path[20];
vertex_hdl_t node_devfs_handle;
int ri;
TRACE();
/* register nodes for all the device's base address registers */
for (ri = 0; ri < PCI_ROM_RESOURCE; ri++) {
if (pci_resource_len(dev, ri) != 0) {
sprintf(devfs_path, "base/%d", ri);
if (hwgraph_register(device_dir_handle, devfs_path,
0, DEVFS_FL_NONE,
0, 0,
S_IFCHR | S_IRUSR | S_IWUSR, 0, 0,
&base_fops,
&dev->resource[ri]) == NULL)
return failure;
}
}
/* register a node corresponding to the first MEM resource on
the device */
for (ri = 0; ri < PCI_ROM_RESOURCE; ri++) {
if (dev->resource[ri].flags & IORESOURCE_MEM &&
pci_resource_len(dev, ri) != 0) {
if (hwgraph_register(device_dir_handle, "mem",
0, DEVFS_FL_NONE, 0, 0,
S_IFCHR | S_IRUSR | S_IWUSR, 0, 0,
&base_fops,
&dev->resource[ri]) == NULL)
return failure;
break;
}
}
/* also register a node corresponding to the first IO resource
on the device */
for (ri = 0; ri < PCI_ROM_RESOURCE; ri++) {
if (dev->resource[ri].flags & IORESOURCE_IO &&
pci_resource_len(dev, ri) != 0) {
if (hwgraph_register(device_dir_handle, "io",
0, DEVFS_FL_NONE, 0, 0,
S_IFCHR | S_IRUSR | S_IWUSR, 0, 0,
&base_fops,
&dev->resource[ri]) == NULL)
return failure;
break;
}
}
/* register a node corresponding to the device's ROM resource,
if present */
if (pci_resource_len(dev, PCI_ROM_RESOURCE) != 0) {
nd = new_node();
if (nd == NULL)
return failure;
node_devfs_handle = hwgraph_register(device_dir_handle, "rom",
0, DEVFS_FL_NONE, 0, 0,
S_IFCHR | S_IRUSR, 0, 0,
&rom_fops, nd);
if (node_devfs_handle == NULL)
return failure;
init_rom_node(nd, dev, node_devfs_handle);
}
/* register a node that allows ioctl's to read and write to
the device's config space */
if (hwgraph_register(device_dir_handle, "config", 0, DEVFS_FL_NONE,
0, 0, S_IFCHR | S_IRUSR | S_IWUSR, 0, 0,
&config_fops, dev) == NULL)
return failure;
/* finally, register a node that allows ioctl's to allocate
and free DMA buffers, as well as memory map those
buffers. */
nd = new_node();
if (nd == NULL)
return failure;
node_devfs_handle =
hwgraph_register(device_dir_handle, "dma", 0, DEVFS_FL_NONE,
0, 0, S_IFCHR | S_IRUSR | S_IWUSR, 0, 0,
&dma_fops, nd);
if (node_devfs_handle == NULL)
return failure;
init_dma_node(nd, dev, node_devfs_handle);
#ifdef DEBUG_PCIBA
dump_nodes(&global_node_list);
#endif
return success;
}
static int
generic_open(struct inode * inode, struct file * file)
{
TRACE();
/* FIXME: should check that they're not trying to open the ROM
writable */
return 0; /* success */
}
static int
rom_mmap(struct file * file, struct vm_area_struct * vma)
{
unsigned long pci_pa;
struct node_data * nd;
TRACE();
#ifdef CONFIG_HWGFS_FS
nd = (struct node_data * )file->f_dentry->d_fsdata;
#else
nd = (struct node_data * )file->private_data;
#endif
pci_pa = pci_resource_start(nd->u.rom.dev, PCI_ROM_RESOURCE);
if (!nd->u.rom.mmapped) {
nd->u.rom.mmapped = true;
DPRINTF("Enabling ROM address decoder.\n");
DPRINTF(
"rom_mmap: FIXME: some cards do not allow both ROM and memory addresses to\n"
"rom_mmap: FIXME: be enabled simultaneously, as they share a decoder.\n");
pci_read_config_dword(nd->u.rom.dev, PCI_ROM_ADDRESS,
&nd->u.rom.saved_rom_base_reg);
DPRINTF("ROM base address contains %x\n",
nd->u.rom.saved_rom_base_reg);
pci_write_config_dword(nd->u.rom.dev, PCI_ROM_ADDRESS,
nd->u.rom.saved_rom_base_reg |
PCI_ROM_ADDRESS_ENABLE);
}
return mmap_pci_address(vma, pci_pa);
}
static int
rom_release(struct inode * inode, struct file * file)
{
struct node_data * nd;
TRACE();
#ifdef CONFIG_HWGFS_FS
nd = (struct node_data * )file->f_dentry->d_fsdata;
#else
nd = (struct node_data * )file->private_data;
#endif
if (nd->u.rom.mmapped) {
nd->u.rom.mmapped = false;
DPRINTF("Disabling ROM address decoder.\n");
pci_write_config_dword(nd->u.rom.dev, PCI_ROM_ADDRESS,
nd->u.rom.saved_rom_base_reg);
}
return 0; /* indicate success */
}
static int
base_mmap(struct file * file, struct vm_area_struct * vma)
{
struct resource * resource;
TRACE();
#ifdef CONFIG_HWGFS_FS
resource = (struct resource *)file->f_dentry->d_fsdata;
#else
resource = (struct resource *)file->private_data;
#endif
return mmap_pci_address(vma, resource->start);
}
static int
config_ioctl(struct inode * inode, struct file * file,
unsigned int cmd,
unsigned long arg)
{
struct pci_dev * dev;
union cfg_data {
uint8_t byte;
uint16_t word;
uint32_t dword;
} read_data, write_data;
int dir, size, offset;
TRACE();
DPRINTF("cmd = %x (DIR = %x, TYPE = %x, NR = %x, SIZE = %x)\n",
cmd,
_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), _IOC_SIZE(cmd));
DPRINTF("arg = %lx\n", arg);
#ifdef CONFIG_HWGFS_FS
dev = (struct pci_dev *)file->f_dentry->d_fsdata;
#else
dev = (struct pci_dev *)file->private_data;
#endif
/* PCIIOCCFG{RD,WR}: read and/or write PCI configuration
space. If both, the read happens first (this becomes a swap
operation, atomic with respect to other updates through
this path). */
dir = _IOC_DIR(cmd);
#define do_swap(suffix, type) \
do { \
if (dir & _IOC_READ) { \
pci_read_config_##suffix(dev, _IOC_NR(cmd), \
&read_data.suffix); \
} \
if (dir & _IOC_WRITE) { \
get_user(write_data.suffix, (type)arg); \
pci_write_config_##suffix(dev, _IOC_NR(cmd), \
write_data.suffix); \
} \
if (dir & _IOC_READ) { \
put_user(read_data.suffix, (type)arg); \
} \
} while (0)
size = _IOC_SIZE(cmd);
offset = _IOC_NR(cmd);
DPRINTF("sanity check\n");
if (((size > 0) || (size <= 4)) &&
((offset + size) <= 256) &&
(dir & (_IOC_READ | _IOC_WRITE))) {
switch (size)
{
case 1:
do_swap(byte, uint8_t *);
break;
case 2:
do_swap(word, uint16_t *);
break;
case 4:
do_swap(dword, uint32_t *);
break;
default:
DPRINTF("invalid ioctl\n");
return -EINVAL;
}
} else
return -EINVAL;
return 0;
}
#ifdef DEBUG_PCIBA
static void
dump_allocations(struct list_head * dalp)
{
struct dma_allocation * dap;
struct list_head * p;
printk("{\n");
list_for_each(p, dalp) {
dap = list_entry(p, struct dma_allocation,
list);
printk(" handle = %lx, va = %p\n",
dap->handle, dap->va);
}
printk("}\n");
}
static void
dump_nodes(struct list_head * nodes)
{
struct node_data * ndp;
struct list_head * p;
printk("{\n");
list_for_each(p, nodes) {
ndp = list_entry(p, struct node_data,
global_node_list);
printk(" %p\n", (void *)ndp);
}
printk("}\n");
}
#if 0
#define NEW(ptr) (ptr = kmalloc(sizeof (*(ptr)), GFP_KERNEL))
static void
test_list(void)
{
u64 i;
LIST_HEAD(the_list);
for (i = 0; i < 5; i++) {
struct dma_allocation * new_alloc;
NEW(new_alloc);
new_alloc->va = (void *)i;
new_alloc->handle = 5*i;
printk("%d - the_list->next = %lx\n", i, the_list.next);
list_add(&new_alloc->list, &the_list);
}
dump_allocations(&the_list);
}
#endif
#endif
static LIST_HEAD(dma_buffer_list);
static int
dma_ioctl(struct inode * inode, struct file * file,
unsigned int cmd,
unsigned long arg)
{
struct node_data * nd;
uint64_t argv;
int result;
struct dma_allocation * dma_alloc;
struct list_head * iterp;
TRACE();
DPRINTF("cmd = %x\n", cmd);
DPRINTF("arg = %lx\n", arg);
#ifdef CONFIG_HWGFS_FS
nd = (struct node_data *)file->f_dentry->d_fsdata;
#else
nd = (struct node_data *)file->private_data;
#endif
#ifdef DEBUG_PCIBA
DPRINTF("at dma_ioctl entry\n");
dump_allocations(&nd->u.dma.dma_allocs);
#endif
switch (cmd) {
case PCIIOCDMAALLOC:
/* PCIIOCDMAALLOC: allocate a chunk of physical memory
and set it up for DMA. Return the PCI address that
gets to it. */
DPRINTF("case PCIIOCDMAALLOC (%lx)\n", PCIIOCDMAALLOC);
if ( (result = get_user(argv, (uint64_t *)arg)) )
return result;
DPRINTF("argv (size of buffer) = %lx\n", argv);
dma_alloc = (struct dma_allocation *)
kmalloc(sizeof(struct dma_allocation), GFP_KERNEL);
if (dma_alloc == NULL)
return -ENOMEM;
dma_alloc->size = (size_t)argv;
dma_alloc->va = pci_alloc_consistent(nd->u.dma.dev,
dma_alloc->size,
&dma_alloc->handle);
DPRINTF("dma_alloc->va = %p, dma_alloc->handle = %lx\n",
dma_alloc->va, dma_alloc->handle);
if (dma_alloc->va == NULL) {
kfree(dma_alloc);
return -ENOMEM;
}
list_add(&dma_alloc->list, &nd->u.dma.dma_allocs);
if ( (result = put_user((uint64_t)dma_alloc->handle,
(uint64_t *)arg)) ) {
DPRINTF("put_user failed\n");
pci_free_consistent(nd->u.dma.dev, (size_t)argv,
dma_alloc->va, dma_alloc->handle);
kfree(dma_alloc);
return result;
}
#ifdef DEBUG_PCIBA
DPRINTF("after insertion\n");
dump_allocations(&nd->u.dma.dma_allocs);
#endif
break;
case PCIIOCDMAFREE:
DPRINTF("case PCIIOCDMAFREE (%lx)\n", PCIIOCDMAFREE);
if ( (result = get_user(argv, (uint64_t *)arg)) ) {
DPRINTF("get_user failed\n");
return result;
}
DPRINTF("argv (physical address of DMA buffer) = %lx\n", argv);
list_for_each(iterp, &nd->u.dma.dma_allocs) {
struct dma_allocation * da =
list_entry(iterp, struct dma_allocation, list);
if (da->handle == argv) {
pci_free_consistent(nd->u.dma.dev, da->size,
da->va, da->handle);
list_del(&da->list);
kfree(da);
#ifdef DEBUG_PCIBA
DPRINTF("after deletion\n");
dump_allocations(&nd->u.dma.dma_allocs);
#endif
return 0; /* success */
}
}
/* previously allocated dma buffer wasn't found */
DPRINTF("attempt to free invalid dma handle\n");
return -EINVAL;
default:
DPRINTF("undefined ioctl\n");
return -EINVAL;
}
DPRINTF("success\n");
return 0;
}
static int
dma_mmap(struct file * file, struct vm_area_struct * vma)
{
struct node_data * nd;
struct list_head * iterp;
int result;
TRACE();
#ifdef CONFIG_HWGFS_FS
nd = (struct node_data *)file->f_dentry->d_fsdata;
#else
nd = (struct node_data *)file->private_data;
#endif
DPRINTF("vma->vm_start is %lx\n", vma->vm_start);
DPRINTF("vma->vm_end is %lx\n", vma->vm_end);
DPRINTF("offset = %lx\n", vma->vm_pgoff);
/* get kernel virtual address for the dma buffer (necessary
* for the mmap). */
list_for_each(iterp, &nd->u.dma.dma_allocs) {
struct dma_allocation * da =
list_entry(iterp, struct dma_allocation, list);
/* why does mmap shift its offset argument? */
if (da->handle == vma->vm_pgoff << PAGE_SHIFT) {
DPRINTF("found dma handle\n");
if ( (result = mmap_kernel_address(vma,
da->va)) ) {
return result; /* failure */
} else {
/* it seems like at least one of these
should show up in user land....
I'm missing something */
*(char *)da->va = 0xaa;
strncpy(da->va, " Toastie!", da->size);
if (put_user(0x18badbeeful,
(u64 *)vma->vm_start))
DPRINTF("put_user failed?!\n");
return 0; /* success */
}
}
}
DPRINTF("attempt to mmap an invalid dma handle\n");
return -EINVAL;
}
static int
mmap_pci_address(struct vm_area_struct * vma, unsigned long pci_va)
{
unsigned long pci_pa;
TRACE();
DPRINTF("vma->vm_start is %lx\n", vma->vm_start);
DPRINTF("vma->vm_end is %lx\n", vma->vm_end);
/* the size of the vma doesn't necessarily correspond to the
size specified in the mmap call. So we can't really do any
kind of sanity check here. This is a dangerous driver, and
it's very easy for a user process to kill the machine. */
DPRINTF("PCI base at virtual address %lx\n", pci_va);
/* the __pa macro is intended for region 7 on IA64, so it
doesn't work for region 6 */
/* pci_pa = __pa(pci_va); */
/* should be replaced by __tpa or equivalent (preferably a
generic equivalent) */
pci_pa = pci_va & ~0xe000000000000000ul;
DPRINTF("PCI base at physical address %lx\n", pci_pa);
/* there are various arch-specific versions of this function
defined in linux/drivers/char/mem.c, but it would be nice
if all architectures put it in pgtable.h. it's defined
there for ia64.... */
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
vma->vm_flags |= VM_NONCACHED | VM_RESERVED | VM_IO;
return io_remap_page_range(vma->vm_start, pci_pa,
vma->vm_end-vma->vm_start,
vma->vm_page_prot);
}
static int
mmap_kernel_address(struct vm_area_struct * vma, void * kernel_va)
{
unsigned long kernel_pa;
TRACE();
DPRINTF("vma->vm_start is %lx\n", vma->vm_start);
DPRINTF("vma->vm_end is %lx\n", vma->vm_end);
/* the size of the vma doesn't necessarily correspond to the
size specified in the mmap call. So we can't really do any
kind of sanity check here. This is a dangerous driver, and
it's very easy for a user process to kill the machine. */
DPRINTF("mapping virtual address %p\n", kernel_va);
kernel_pa = __pa(kernel_va);
DPRINTF("mapping physical address %lx\n", kernel_pa);
vma->vm_flags |= VM_NONCACHED | VM_RESERVED | VM_IO;
return remap_page_range(vma->vm_start, kernel_pa,
vma->vm_end-vma->vm_start,
vma->vm_page_prot);
}
arch/ia64/sn/io/machvec/pci.c
View file @ 4776e929
......@@ -43,189 +43,33 @@
extern vertex_hdl_t pci_bus_to_vertex(unsigned char);
extern vertex_hdl_t devfn_to_vertex(unsigned char bus, unsigned char devfn);
/*
* snia64_read_config_byte - Read a byte from the config area of the device.
*/
static int snia64_read_config_byte (struct pci_dev *dev,
int where, unsigned char *val)
int sn_read_config(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *val)
{
unsigned long res = 0;
unsigned size = 1;
vertex_hdl_t device_vertex;
if ( (dev == (struct pci_dev *)0) || (val == (unsigned char *)0) ) {
return PCIBIOS_DEVICE_NOT_FOUND;
}
device_vertex = devfn_to_vertex(dev->bus->number, dev->devfn);
if (!device_vertex) {
DBG("%s : nonexistent device: bus= 0x%x slot= 0x%x func= 0x%x\n",
__FUNCTION__, dev->bus->number, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
return(-1);
}
res = pciio_config_get(device_vertex, (unsigned) where, size);
*val = (unsigned char) res;
return PCIBIOS_SUCCESSFUL;
}
/*
* snia64_read_config_word - Read 2 bytes from the config area of the device.
*/
static int snia64_read_config_word (struct pci_dev *dev,
int where, unsigned short *val)
{
unsigned long res = 0;
unsigned size = 2; /* 2 bytes */
vertex_hdl_t device_vertex;
if ( (dev == (struct pci_dev *)0) || (val == (unsigned short *)0) ) {
return PCIBIOS_DEVICE_NOT_FOUND;
}
device_vertex = devfn_to_vertex(dev->bus->number, dev->devfn);
if (!device_vertex) {
DBG("%s : nonexistent device: bus= 0x%x slot= 0x%x func= 0x%x\n",
__FUNCTION__, dev->bus->number, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
return(-1);
}
res = pciio_config_get(device_vertex, (unsigned) where, size);
*val = (unsigned short) res;
return PCIBIOS_SUCCESSFUL;
}
/*
* snia64_read_config_dword - Read 4 bytes from the config area of the device.
*/
static int snia64_read_config_dword (struct pci_dev *dev,
int where, unsigned int *val)
{
unsigned long res = 0;
unsigned size = 4; /* 4 bytes */
vertex_hdl_t device_vertex;
if (where & 3) {
return PCIBIOS_BAD_REGISTER_NUMBER;
}
if ( (dev == (struct pci_dev *)0) || (val == (unsigned int *)0) ) {
return PCIBIOS_DEVICE_NOT_FOUND;
}
device_vertex = devfn_to_vertex(dev->bus->number, dev->devfn);
if (!device_vertex) {
DBG("%s : nonexistent device: bus= 0x%x slot= 0x%x func= 0x%x\n",
__FUNCTION__, dev->bus->number, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
return(-1);
}
device_vertex = devfn_to_vertex(bus->number, devfn);
res = pciio_config_get(device_vertex, (unsigned) where, size);
*val = (unsigned int) res;
return PCIBIOS_SUCCESSFUL;
}
/*
* snia64_write_config_byte - Writes 1 byte to the config area of the device.
*/
static int snia64_write_config_byte (struct pci_dev *dev,
int where, unsigned char val)
int sn_write_config(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val)
{
vertex_hdl_t device_vertex;
if ( dev == (struct pci_dev *)0 ) {
return PCIBIOS_DEVICE_NOT_FOUND;
}
/*
* if it's an IOC3 then we bail out, we special
* case them with pci_fixup_ioc3
*/
if (dev->vendor == PCI_VENDOR_ID_SGI &&
dev->device == PCI_DEVICE_ID_SGI_IOC3 )
return PCIBIOS_SUCCESSFUL;
device_vertex = devfn_to_vertex(dev->bus->number, dev->devfn);
if (!device_vertex) {
DBG("%s : nonexistent device: bus= 0x%x slot= 0x%x func= 0x%x\n",
__FUNCTION__, dev->bus->number, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
return(-1);
}
pciio_config_set( device_vertex, (unsigned)where, 1, (uint64_t) val);
return PCIBIOS_SUCCESSFUL;
}
/*
* snia64_write_config_word - Writes 2 bytes to the config area of the device.
*/
static int snia64_write_config_word (struct pci_dev *dev,
int where, unsigned short val)
{
vertex_hdl_t device_vertex = NULL;
if (where & 1) {
return PCIBIOS_BAD_REGISTER_NUMBER;
}
if ( dev == (struct pci_dev *)0 ) {
return PCIBIOS_DEVICE_NOT_FOUND;
}
/*
* if it's an IOC3 then we bail out, we special
* case them with pci_fixup_ioc3
*/
if (dev->vendor == PCI_VENDOR_ID_SGI &&
dev->device == PCI_DEVICE_ID_SGI_IOC3)
return PCIBIOS_SUCCESSFUL;
device_vertex = devfn_to_vertex(dev->bus->number, dev->devfn);
if (!device_vertex) {
DBG("%s : nonexistent device: bus= 0x%x slot= 0x%x func= 0x%x\n",
__FUNCTION__, dev->bus->number, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
return(-1);
}
pciio_config_set( device_vertex, (unsigned)where, 2, (uint64_t) val);
return PCIBIOS_SUCCESSFUL;
}
/*
* snia64_write_config_dword - Writes 4 bytes to the config area of the device.
*/
static int snia64_write_config_dword (struct pci_dev *dev,
int where, unsigned int val)
{
vertex_hdl_t device_vertex;
if (where & 3) {
return PCIBIOS_BAD_REGISTER_NUMBER;
}
if ( dev == (struct pci_dev *)0 ) {
return PCIBIOS_DEVICE_NOT_FOUND;
}
/*
* if it's an IOC3 then we bail out, we special
* case them with pci_fixup_ioc3
*/
if (dev->vendor == PCI_VENDOR_ID_SGI &&
dev->device == PCI_DEVICE_ID_SGI_IOC3)
return PCIBIOS_SUCCESSFUL;
device_vertex = devfn_to_vertex(dev->bus->number, dev->devfn);
if (!device_vertex) {
DBG("%s : nonexistent device: bus= 0x%x slot= 0x%x func= 0x%x\n",
__FUNCTION__, dev->bus->number, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
return(-1);
}
pciio_config_set( device_vertex, (unsigned)where, 4, (uint64_t) val);
device_vertex = devfn_to_vertex(bus->number, devfn);
pciio_config_set( device_vertex, (unsigned)where, size, (uint64_t) val);
return PCIBIOS_SUCCESSFUL;
}
static struct pci_ops snia64_pci_ops = {
snia64_read_config_byte,
snia64_read_config_word,
snia64_read_config_dword,
snia64_write_config_byte,
snia64_write_config_word,
snia64_write_config_dword
struct pci_ops sn_pci_ops = {
.read = sn_read_config,
.write = sn_write_config
};
/*
* snia64_pci_find_bios - SNIA64 pci_find_bios() platform specific code.
* sn_pci_find_bios - SNIA64 pci_find_bios() platform specific code.
*/
void __init
sn_pci_find_bios(void)
......@@ -239,7 +83,7 @@ sn_pci_find_bios(void)
sgi_master_io_infr_init();
/* sn_io_infrastructure_init(); */
pci_root_ops = &snia64_pci_ops;
pci_root_ops = &sn_pci_ops;
}
void
......
arch/ia64/sn/io/machvec/pci_dma.c
View file @ 4776e929
......@@ -566,6 +566,134 @@ sn_pci_dma_supported(struct pci_dev *hwdev, u64 mask)
return 1;
}
#ifdef CONFIG_PCI
/*
* New generic DMA routines just wrap sn2 PCI routines until we
* support other bus types (if ever).
*/
int
sn_dma_supported(struct device *dev, u64 mask)
{
BUG_ON(dev->bus != &pci_bus_type);
return pci_dma_supported(to_pci_dev(dev), mask);
}
EXPORT_SYMBOL(sn_dma_supported);
int
sn_dma_set_mask(struct device *dev, u64 dma_mask)
{
BUG_ON(dev->bus != &pci_bus_type);
return pci_set_dma_mask(to_pci_dev(dev), dma_mask);
}
EXPORT_SYMBOL(sn_dma_set_mask);
void *
sn_dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
int flag)
{
BUG_ON(dev->bus != &pci_bus_type);
return pci_alloc_consistent(to_pci_dev(dev), size, dma_handle);
}
EXPORT_SYMBOL(sn_dma_alloc_coherent);
void
sn_dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
dma_addr_t dma_handle)
{
BUG_ON(dev->bus != &pci_bus_type);
pci_free_consistent(to_pci_dev(dev), size, cpu_addr, dma_handle);
}
EXPORT_SYMBOL(sn_dma_free_coherent);
dma_addr_t
sn_dma_map_single(struct device *dev, void *cpu_addr, size_t size,
int direction)
{
BUG_ON(dev->bus != &pci_bus_type);
return pci_map_single(to_pci_dev(dev), cpu_addr, size, (int)direction);
}
EXPORT_SYMBOL(sn_dma_map_single);
void
sn_dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
int direction)
{
BUG_ON(dev->bus != &pci_bus_type);
pci_unmap_single(to_pci_dev(dev), dma_addr, size, (int)direction);
}
EXPORT_SYMBOL(sn_dma_unmap_single);
dma_addr_t
sn_dma_map_page(struct device *dev, struct page *page,
unsigned long offset, size_t size,
int direction)
{
BUG_ON(dev->bus != &pci_bus_type);
return pci_map_page(to_pci_dev(dev), page, offset, size, (int)direction);
}
EXPORT_SYMBOL(sn_dma_map_page);
void
sn_dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
int direction)
{
BUG_ON(dev->bus != &pci_bus_type);
pci_unmap_page(to_pci_dev(dev), dma_address, size, (int)direction);
}
EXPORT_SYMBOL(sn_dma_unmap_page);
int
sn_dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
int direction)
{
BUG_ON(dev->bus != &pci_bus_type);
return pci_map_sg(to_pci_dev(dev), sg, nents, (int)direction);
}
EXPORT_SYMBOL(sn_dma_map_sg);
void
sn_dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
int direction)
{
BUG_ON(dev->bus != &pci_bus_type);
pci_unmap_sg(to_pci_dev(dev), sg, nhwentries, (int)direction);
}
EXPORT_SYMBOL(sn_dma_unmap_sg);
void
sn_dma_sync_single(struct device *dev, dma_addr_t dma_handle, size_t size,
int direction)
{
BUG_ON(dev->bus != &pci_bus_type);
pci_dma_sync_single(to_pci_dev(dev), dma_handle, size, (int)direction);
}
EXPORT_SYMBOL(sn_dma_sync_single);
void
sn_dma_sync_sg(struct device *dev, struct scatterlist *sg, int nelems,
int direction)
{
BUG_ON(dev->bus != &pci_bus_type);
pci_dma_sync_sg(to_pci_dev(dev), sg, nelems, (int)direction);
}
EXPORT_SYMBOL(sn_dma_sync_sg);
#endif /* CONFIG_PCI */
EXPORT_SYMBOL(sn_pci_unmap_single);
EXPORT_SYMBOL(sn_pci_map_single);
EXPORT_SYMBOL(sn_pci_dma_sync_single);
......
arch/ia64/sn/io/platform_init/irix_io_init.c
View file @ 4776e929
......@@ -15,7 +15,6 @@
#include <asm/sn/sn_cpuid.h>
#include <asm/sn/klconfig.h>
#include <asm/sn/sn_private.h>
#include <asm/sn/pci/pciba.h>
#include <linux/smp.h>
#include <asm/sn/simulator.h>
......
arch/ia64/sn/io/sn2/pcibr/Makefile
View file @ 4776e929
......@@ -9,7 +9,7 @@
# Makefile for the sn2 specific pci bridge routines.
#
EXTRA_CFLAGS := -DLITTLE_ENDIAN -DSHUB_SWAP_WAR
EXTRA_CFLAGS := -DLITTLE_ENDIAN
obj-y += pcibr_ate.o pcibr_config.o pcibr_dvr.o pcibr_hints.o pcibr_intr.o pcibr_rrb.o \
pcibr_slot.o pcibr_error.o
arch/ia64/sn/io/sn2/pcibr/pcibr_dvr.c
View file @ 4776e929
......@@ -77,8 +77,6 @@ int pcibr_debug_slot = -1; /* '-1' for all slots */
#define USS302_BRIDGE_TIMEOUT_HLD 4
#endif
int pcibr_devflag = D_MP;
/* kbrick widgetnum-to-bus layout */
int p_busnum[MAX_PORT_NUM] = { /* widget# */
0, 0, 0, 0, 0, 0, 0, 0, /* 0x0 - 0x7 */
......@@ -148,10 +146,6 @@ int pcibr_attach(vertex_hdl_t);
int pcibr_attach2(vertex_hdl_t, bridge_t *, vertex_hdl_t,
int, pcibr_soft_t *);
int pcibr_detach(vertex_hdl_t);
int pcibr_close(vertex_hdl_t, int, int, cred_t *);
int pcibr_map(vertex_hdl_t, vhandl_t *, off_t, size_t, uint);
int pcibr_unmap(vertex_hdl_t, vhandl_t *);
int pcibr_ioctl(vertex_hdl_t, int, void *, int, struct cred *, int *);
int pcibr_pcix_rbars_calc(pcibr_soft_t);
extern int pcibr_init_ext_ate_ram(bridge_t *);
extern int pcibr_ate_alloc(pcibr_soft_t, int);
......@@ -270,34 +264,6 @@ extern int pcibr_slot_detach(vertex_hdl_t, pciio_slot_t, int,
extern int pcibr_slot_initial_rrb_alloc(vertex_hdl_t, pciio_slot_t);
extern int pcibr_initial_rrb(vertex_hdl_t, pciio_slot_t, pciio_slot_t);
/*
* This is the file operation table for the pcibr driver.
* As each of the functions are implemented, put the
* appropriate function name below.
*/
static int pcibr_mmap(struct file * file, struct vm_area_struct * vma);
static int pcibr_open(struct inode *, struct file *);
struct file_operations pcibr_fops = {
owner: THIS_MODULE,
llseek: NULL,
read: NULL,
write: NULL,
readdir: NULL,
poll: NULL,
ioctl: NULL,
mmap: pcibr_mmap,
open: pcibr_open,
flush: NULL,
release: NULL,
fsync: NULL,
fasync: NULL,
lock: NULL,
readv: NULL,
writev: NULL,
sendpage: NULL,
get_unmapped_area: NULL
};
/* =====================================================================
* Device(x) register management
*/
......@@ -622,44 +588,15 @@ pcibr_device_write_gather_flush(pcibr_soft_t pcibr_soft,
*/
/*
* open/close mmap/munmap interface would be used by processes
* that plan to map the PCI bridge, and muck around with the
* registers. This is dangerous to do, and will be allowed
* to a select brand of programs. Typically these are
* diagnostics programs, or some user level commands we may
* write to do some weird things.
* To start with expect them to have root priveleges.
* We will ask for more later.
*/
/* ARGSUSED */
int
pcibr_open(struct inode *x, struct file *y)
{
return 0;
}
/*ARGSUSED */
int
pcibr_close(vertex_hdl_t dev, int oflag, int otyp, cred_t *crp)
{
return 0;
}
static int
pcibr_mmap(struct file * file, struct vm_area_struct * vma)
{
vertex_hdl_t pcibr_vhdl;
vertex_hdl_t pcibr_vhdl = file->f_dentry->d_fsdata;
pcibr_soft_t pcibr_soft;
bridge_t *bridge;
unsigned long phys_addr;
int error = 0;
#ifdef CONFIG_HWGFS_FS
pcibr_vhdl = (vertex_hdl_t) file->f_dentry->d_fsdata;
#else
pcibr_vhdl = (vertex_hdl_t) file->private_data;
#endif
pcibr_soft = pcibr_soft_get(pcibr_vhdl);
bridge = pcibr_soft->bs_base;
phys_addr = (unsigned long)bridge & ~0xc000000000000000; /* Mask out the Uncache bits */
......@@ -671,114 +608,17 @@ pcibr_mmap(struct file * file, struct vm_area_struct * vma)
return(error);
}
/*ARGSUSED */
int
pcibr_map(vertex_hdl_t dev, vhandl_t *vt, off_t off, size_t len, uint prot)
{
int error;
vertex_hdl_t vhdl = dev_to_vhdl(dev);
vertex_hdl_t pcibr_vhdl = hwgraph_connectpt_get(vhdl);
pcibr_soft_t pcibr_soft = pcibr_soft_get(pcibr_vhdl);
bridge_t *bridge = pcibr_soft->bs_base;
hwgraph_vertex_unref(pcibr_vhdl);
ASSERT(pcibr_soft);
len = ctob(btoc(len)); /* Make len page aligned */
error = v_mapphys(vt, (void *) ((__psunsigned_t) bridge + off), len);
/*
* If the offset being mapped corresponds to the flash prom
* base, and if the mapping succeeds, and if the user
* has requested the protections to be WRITE, enable the
* flash prom to be written.
*
* XXX- deprecate this in favor of using the
* real flash driver ...
*/
if (IS_BRIDGE_SOFT(pcibr_soft) && !error &&
((off == BRIDGE_EXTERNAL_FLASH) ||
(len > BRIDGE_EXTERNAL_FLASH))) {
int s;
/*
* ensure that we write and read without any interruption.
* The read following the write is required for the Bridge war
*/
s = splhi();
if (io_get_sh_swapper(NASID_GET(bridge))) {
BRIDGE_REG_SET32((&bridge->b_wid_control)) |= __swab32(BRIDGE_CTRL_FLASH_WR_EN);
BRIDGE_REG_GET32((&bridge->b_wid_control)); /* inval addr bug war */
} else {
bridge->b_wid_control |= BRIDGE_CTRL_FLASH_WR_EN;
bridge->b_wid_control; /* inval addr bug war */
}
splx(s);
}
return error;
}
/*ARGSUSED */
int
pcibr_unmap(vertex_hdl_t dev, vhandl_t *vt)
{
vertex_hdl_t pcibr_vhdl = hwgraph_connectpt_get((vertex_hdl_t) dev);
pcibr_soft_t pcibr_soft = pcibr_soft_get(pcibr_vhdl);
bridge_t *bridge = pcibr_soft->bs_base;
hwgraph_vertex_unref(pcibr_vhdl);
if ( IS_PIC_SOFT(pcibr_soft) ) {
/*
* If flashprom write was enabled, disable it, as
* this is the last unmap.
*/
if (IS_BRIDGE_SOFT(pcibr_soft) &&
(bridge->b_wid_control & BRIDGE_CTRL_FLASH_WR_EN)) {
int s;
/*
* This is the file operation table for the pcibr driver.
* As each of the functions are implemented, put the
* appropriate function name below.
*/
static int pcibr_mmap(struct file * file, struct vm_area_struct * vma);
struct file_operations pcibr_fops = {
.owner = THIS_MODULE,
.mmap = pcibr_mmap,
};
/*
* ensure that we write and read without any interruption.
* The read following the write is required for the Bridge war
*/
s = splhi();
bridge->b_wid_control &= ~BRIDGE_CTRL_FLASH_WR_EN;
bridge->b_wid_control; /* inval addr bug war */
splx(s);
}
}
else {
if (io_get_sh_swapper(NASID_GET(bridge))) {
if (BRIDGE_REG_GET32((&bridge->b_wid_control)) & BRIDGE_CTRL_FLASH_WR_EN) {
int s;
/*
* ensure that we write and read without any interruption.
* The read following the write is required for the Bridge war
*/
s = splhi();
BRIDGE_REG_SET32((&bridge->b_wid_control)) &= __swab32((unsigned int)~BRIDGE_CTRL_FLASH_WR_EN);
BRIDGE_REG_GET32((&bridge->b_wid_control)); /* inval addr bug war */
splx(s);
} else {
if (bridge->b_wid_control & BRIDGE_CTRL_FLASH_WR_EN) {
int s;
/*
* ensure that we write and read without any interruption.
* The read following the write is required for the Bridge war
*/
s = splhi();
bridge->b_wid_control &= ~BRIDGE_CTRL_FLASH_WR_EN;
bridge->b_wid_control; /* inval addr bug war */
splx(s);
}
}
}
}
return 0;
}
/* This is special case code used by grio. There are plans to make
* this a bit more general in the future, but till then this should
......@@ -812,18 +652,6 @@ pcibr_device_slot_get(vertex_hdl_t dev_vhdl)
return slot;
}
/*ARGSUSED */
int
pcibr_ioctl(vertex_hdl_t dev,
int cmd,
void *arg,
int flag,
struct cred *cr,
int *rvalp)
{
return 0;
}
pcibr_info_t
pcibr_info_get(vertex_hdl_t vhdl)
{
......
arch/ia64/sn/io/sn2/pic.c
View file @ 4776e929
......@@ -35,8 +35,6 @@ extern char *bcopy(const char * src, char * dest, int count);
#define PCI_BUS_NO_1 1
int pic_devflag = D_MP;
extern int pcibr_attach2(vertex_hdl_t, bridge_t *, vertex_hdl_t, int, pcibr_soft_t *);
extern void pcibr_driver_reg_callback(vertex_hdl_t, int, int, int);
extern void pcibr_driver_unreg_callback(vertex_hdl_t, int, int, int);
......
arch/ia64/sn/io/sn2/xbow.c
View file @ 4776e929
......@@ -45,8 +45,6 @@
#define NEW(ptr) (ptr = kmalloc(sizeof (*(ptr)), GFP_KERNEL))
#define DEL(ptr) (kfree(ptr))
int xbow_devflag = D_MP;
/*
* This file supports the Xbow chip. Main functions: initializtion,
* error handling, and GBR.
......@@ -92,14 +90,6 @@ struct xbow_soft_s {
void xbow_mlreset(xbow_t *);
int xbow_attach(vertex_hdl_t);
static int xbow_open(struct inode *, struct file *);
int xbow_close(vertex_hdl_t, int, int, cred_t *);
int xbow_map(vertex_hdl_t, vhandl_t *, off_t, size_t, uint);
int xbow_unmap(vertex_hdl_t, vhandl_t *);
int xbow_ioctl(vertex_hdl_t, int, void *, int, struct cred *, int *);
int xbow_widget_present(xbow_t *, int);
static int xbow_link_alive(xbow_t *, int);
vertex_hdl_t xbow_widget_lookup(vertex_hdl_t, int);
......@@ -127,32 +117,6 @@ xswitch_provider_t xbow_provider =
xbow_reset_link,
};
/*
* This is the file operation table for the pcibr driver.
* As each of the functions are implemented, put the
* appropriate function name below.
*/
static int xbow_mmap(struct file * file, struct vm_area_struct * vma);
struct file_operations xbow_fops = {
owner: THIS_MODULE,
llseek: NULL,
read: NULL,
write: NULL,
readdir: NULL,
poll: NULL,
ioctl: NULL,
mmap: xbow_mmap,
open: xbow_open,
flush: NULL,
release: NULL,
fsync: NULL,
fasync: NULL,
lock: NULL,
readv: NULL,
writev: NULL,
sendpage: NULL,
get_unmapped_area: NULL
};
static int
xbow_mmap(struct file * file, struct vm_area_struct * vma)
......@@ -169,6 +133,15 @@ xbow_mmap(struct file * file, struct vm_area_struct * vma)
return(error);
}
/*
* This is the file operation table for the pcibr driver.
* As each of the functions are implemented, put the
* appropriate function name below.
*/
struct file_operations xbow_fops = {
.owner = THIS_MODULE,
.mmap = xbow_mmap,
};
/*
* xbow_mlreset: called at mlreset time if the
......@@ -446,42 +419,6 @@ xbow_attach(vertex_hdl_t conn)
return 0; /* attach successful */
}
/*ARGSUSED */
static int
xbow_open(struct inode *xx, struct file *yy)
{
return 0;
}
/*ARGSUSED */
int
xbow_close(vertex_hdl_t dev, int oflag, int otyp, cred_t *crp)
{
return 0;
}
/*ARGSUSED */
int
xbow_map(vertex_hdl_t dev, vhandl_t *vt, off_t off, size_t len, uint prot)
{
vertex_hdl_t vhdl = dev_to_vhdl(dev);
xbow_soft_t soft = xbow_soft_get(vhdl);
int error;
ASSERT(soft);
len = ctob(btoc(len));
/* XXX- this ignores the offset!!! */
error = v_mapphys(vt, (void *) soft->base, len);
return error;
}
/*ARGSUSED */
int
xbow_unmap(vertex_hdl_t dev, vhandl_t *vt)
{
return 0;
}
/* This contains special-case code for grio. There are plans to make
* this general sometime in the future, but till then this should
* be good enough.
......@@ -519,58 +456,6 @@ xbow_widget_num_get(vertex_hdl_t dev)
return XWIDGET_NONE;
}
int
xbow_ioctl(vertex_hdl_t dev,
int cmd,
void *arg,
int flag,
struct cred *cr,
int *rvalp)
{
vertex_hdl_t vhdl;
int error = 0;
#if defined (DEBUG)
int rc;
vertex_hdl_t conn;
struct xwidget_info_s *xwidget_info;
xbow_soft_t xbow_soft;
#endif
*rvalp = 0;
vhdl = dev_to_vhdl(dev);
#if defined (DEBUG)
xbow_soft = xbow_soft_get(vhdl);
conn = xbow_soft->conn;
xwidget_info = xwidget_info_get(conn);
ASSERT_ALWAYS(xwidget_info != NULL);
rc = xwidget_hwid_is_xswitch(&xwidget_info->w_hwid);
ASSERT_ALWAYS(rc != 0);
#endif
switch (cmd) {
case XBOWIOC_LLP_ERROR_ENABLE:
if ((error = xbow_enable_llp_monitor(vhdl)) != 0)
error = EINVAL;
break;
case XBOWIOC_LLP_ERROR_DISABLE:
if ((error = xbow_disable_llp_monitor(vhdl)) != 0)
error = EINVAL;
break;
default:
break;
}
return error;
}
/*
* xbow_widget_present: See if a device is present
* on the specified port of this crossbow.
......
arch/ia64/sn/io/xswitch.c
View file @ 4776e929
......@@ -23,8 +23,6 @@
#define NEW(ptr) (ptr = kmalloc(sizeof (*(ptr)), GFP_KERNEL))
#define DEL(ptr) (kfree(ptr))
int xswitch_devflag = D_MP;
/*
* This file provides generic support for Crosstalk
* Switches, in a way that insulates crosstalk providers
......
arch/ia64/sn/kernel/sn_ksyms.c
View file @ 4776e929
......@@ -26,25 +26,6 @@ extern cnodeid_t master_node_get(devfs_handle_t vhdl);
EXPORT_SYMBOL(base_io_scsi_ctlr_vhdl);
EXPORT_SYMBOL(master_node_get);
/*
* symbols referenced by the PCIBA module
*/
#include <asm/sn/invent.h>
#include <asm/sn/hcl.h>
#include <asm/sn/pci/pciio.h>
#include <asm/sn/sn_cpuid.h>
devfs_handle_t
devfn_to_vertex(unsigned char busnum, unsigned int devfn);
EXPORT_SYMBOL(devfn_to_vertex);
EXPORT_SYMBOL(hwgraph_vertex_unref);
EXPORT_SYMBOL(pciio_config_get);
EXPORT_SYMBOL(pciio_info_slot_get);
EXPORT_SYMBOL(hwgraph_edge_add);
EXPORT_SYMBOL(pciio_info_master_get);
EXPORT_SYMBOL(pciio_info_get);
#ifdef CONFIG_IA64_SGI_SN_DEBUG
EXPORT_SYMBOL(__pa_debug);
EXPORT_SYMBOL(__va_debug);
......
include/asm-ia64/sn/pci/pciba.h deleted 100644 → 0
View file @ 80baf699
/*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file "COPYING" in the main directory of
* this archive for more details.
*
* Copyright (C) 1997, 2001-2003 Silicon Graphics, Inc. All rights reserved.
*
*/
#ifndef _ASM_SN_PCI_PCIBA_H
#define _ASM_SN_PCI_PCIBA_H
#include <linux/ioctl.h>
#include <linux/types.h>
#include <linux/pci.h>
/* for application compatibility with IRIX (why do I bother?) */
#ifndef __KERNEL__
typedef u_int8_t uint8_t;
typedef u_int16_t uint16_t;
typedef u_int32_t uint32_t;
#endif
#define PCI_CFG_VENDOR_ID PCI_VENDOR_ID
#define PCI_CFG_COMMAND PCI_COMMAND
#define PCI_CFG_REV_ID PCI_REVISION_ID
#define PCI_CFG_HEADER_TYPE PCI_HEADER_TYPE
#define PCI_CFG_BASE_ADDR(n) PCI_BASE_ADDRESS_##n
/* /hw/.../pci/[slot]/config accepts ioctls to read
* and write specific registers as follows:
*
* "t" is the native type (char, short, uint32, uint64)
* to read from CFG space; results will be arranged in
* byte significance (ie. first byte from PCI is lowest
* or last byte in result).
*
* "r" is the byte offset in PCI CFG space of the first
* byte of the register (it's least significant byte,
* in the little-endian PCI numbering). This can actually
* be as much as 16 bits wide, and is intended to match
* the layout of a "Type 1 Configuration Space" address:
* the register number in the low eight bits, then three
* bits for the function number and five bits for the
* slot number.
*/
#define PCIIOCCFGRD(t,r) _IOR(0,(r),t)
#define PCIIOCCFGWR(t,r) _IOW(0,(r),t)
/* Some common config register access commands.
* Use these as examples of how to construct
* values for other registers you want to access.
*/
/* PCIIOCGETID: arg is ptr to 32-bit int,
* returns the 32-bit ID value with VENDOR
* in the bottom 16 bits and DEVICE in the top.
*/
#define PCIIOCGETID PCIIOCCFGRD(uint32_t,PCI_CFG_VENDOR_ID)
/* PCIIOCSETCMD: arg is ptr to a 16-bit short,
* which will be written to the CMD register.
*/
#define PCIIOCSETCMD PCIIOCCFGWR(uint16_t,PCI_CFG_COMMAND)
/* PCIIOCGETREV: arg is ptr to an 8-bit char,
* which will get the 8-bit revision number.
*/
#define PCIIOCGETREV PCIIOCCFGRD(uint8_t,PCI_CFG_REV_ID)
/* PCIIOCGETHTYPE: arg is ptr to an 8-bit char,
* which will get the 8-bit header type.
*/
#define PCIIOCGETHTYPE PCIIOCCFGRD(uint8_t,PCI_CFG_HEADER_TYPE)
/* PCIIOCGETBASE(n): arg is ptr to a 32-bit int,
* which will get the value of the BASE<n> register.
*/
/* FIXME chadt: this doesn't tell me whether or not this will work
with non-constant 'n.' */
#define PCIIOCGETBASE(n) PCIIOCCFGRD(uint32_t,PCI_CFG_BASE_ADDR(n))
/* /hw/.../pci/[slot]/dma accepts ioctls to allocate
* and free physical memory for use in user-triggered
* DMA operations.
*/
#define PCIIOCDMAALLOC _IOWR(0,1,uint64_t)
#define PCIIOCDMAFREE _IOW(0,1,uint64_t)
/* pio cache-mode ioctl defines. current only uncached accelerated */
#define PCIBA_CACHE_MODE_SET 1
#define PCIBA_CACHE_MODE_CLEAR 2
#ifdef PIOMAP_UNC_ACC
#define PCIBA_UNCACHED_ACCEL PIOMAP_UNC_ACC
#endif
/* The parameter for PCIIOCDMAALLOC needs to contain
* both the size of the request and the flag values
* to be used in setting up the DMA.
*
FIXME chadt: gonna have to revisit this: what flags would an IRIXer like to
have available?
* Any flags normally useful in pciio_dmamap
* or pciio_dmatrans function calls can6 be used here. */
#define PCIIOCDMAALLOC_REQUEST_PACK(flags,size) \
((((uint64_t)(flags))<<32)| \
(((uint64_t)(size))&0xFFFFFFFF))
#ifdef __KERNEL__
extern int pciba_init(void);
#endif
#endif /* _ASM_SN_PCI_PCIBA_H */
include/asm-ia64/sn/sgi.h
View file @ 4776e929
......@@ -17,21 +17,15 @@
#include <asm/uaccess.h> /* for copy_??_user */
#include <linux/mm.h>
#include <linux/devfs_fs_kernel.h>
#ifdef CONFIG_HWGFS_FS
#include <linux/fs.h>
#include <asm/sn/hwgfs.h>
typedef hwgfs_handle_t vertex_hdl_t;
#else
typedef devfs_handle_t vertex_hdl_t;
#endif
typedef int64_t __psint_t; /* needed by klgraph.c */
typedef enum { B_FALSE, B_TRUE } boolean_t;
#define ctob(x) ((uint64_t)(x)*NBPC)
#define btoc(x) (((uint64_t)(x)+(NBPC-1))/NBPC)
/*
** Possible return values from graph routines.
......@@ -60,20 +54,10 @@ typedef uint64_t vhandl_t;
#define NBPP PAGE_SIZE
#define _PAGESZ PAGE_SIZE
#ifndef D_MP
#define D_MP 1
#endif
#ifndef MAXDEVNAME
#define MAXDEVNAME 256
#endif
#ifndef NBPC
#define NBPC 0
#endif
typedef uint64_t mrlock_t; /* needed by devsupport.c */
#define HUB_PIO_CONVEYOR 0x1
#define CNODEID_NONE ((cnodeid_t)-1)
#define XTALK_PCI_PART_NUM "030-1275-"
......@@ -83,10 +67,6 @@ typedef uint64_t mrlock_t; /* needed by devsupport.c */
#define COPYIN(a, b, c) copy_from_user(b,a,c)
#define COPYOUT(a, b, c) copy_to_user(b,a,c)
#define kvtophys(x) (alenaddr_t) (x)
#define POFFMASK (NBPP - 1)
#define poff(X) ((__psunsigned_t)(X) & POFFMASK)
#define BZERO(a,b) memset(a, 0, b)
#define kern_malloc(x) kmalloc(x, GFP_KERNEL)
......@@ -172,10 +152,6 @@ extern void print_register(unsigned long long, struct reg_desc *);
* Definitions that do not exist in linux *
******************************************/
typedef int cred_t; /* This is for compilation reasons */
struct cred { int x; };
#define DELAY(a)
/************************************************
......
include/asm-ia64/topology.h
View file @ 4776e929
......@@ -63,4 +63,6 @@
/* Cross-node load balancing interval. */
#define NODE_BALANCE_RATE 10
void build_cpu_to_node_map(void);
#endif /* _ASM_IA64_TOPOLOGY_H */
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