mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-05 20:26:43 +07:00
59f9996555
Fix a possible problem with mport registration left non-cleared after fsl_rio_setup() exits on link error. Abort mport initialization if registration failed. This patch is applicable to 2.6.39-rc1 only. The problem does not exist for earlier versions. Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Li Yang <leoli@freescale.com> Cc: Thomas Moll <thomas.moll@sysgo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1198 lines
32 KiB
C
1198 lines
32 KiB
C
/*
|
|
* RapidIO interconnect services
|
|
* (RapidIO Interconnect Specification, http://www.rapidio.org)
|
|
*
|
|
* Copyright 2005 MontaVista Software, Inc.
|
|
* Matt Porter <mporter@kernel.crashing.org>
|
|
*
|
|
* Copyright 2009 Integrated Device Technology, Inc.
|
|
* Alex Bounine <alexandre.bounine@idt.com>
|
|
* - Added Port-Write/Error Management initialization and handling
|
|
*
|
|
* 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; either version 2 of the License, or (at your
|
|
* option) any later version.
|
|
*/
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/kernel.h>
|
|
|
|
#include <linux/delay.h>
|
|
#include <linux/init.h>
|
|
#include <linux/rio.h>
|
|
#include <linux/rio_drv.h>
|
|
#include <linux/rio_ids.h>
|
|
#include <linux/rio_regs.h>
|
|
#include <linux/module.h>
|
|
#include <linux/spinlock.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/interrupt.h>
|
|
|
|
#include "rio.h"
|
|
|
|
static LIST_HEAD(rio_mports);
|
|
static unsigned char next_portid;
|
|
|
|
/**
|
|
* rio_local_get_device_id - Get the base/extended device id for a port
|
|
* @port: RIO master port from which to get the deviceid
|
|
*
|
|
* Reads the base/extended device id from the local device
|
|
* implementing the master port. Returns the 8/16-bit device
|
|
* id.
|
|
*/
|
|
u16 rio_local_get_device_id(struct rio_mport *port)
|
|
{
|
|
u32 result;
|
|
|
|
rio_local_read_config_32(port, RIO_DID_CSR, &result);
|
|
|
|
return (RIO_GET_DID(port->sys_size, result));
|
|
}
|
|
|
|
/**
|
|
* rio_request_inb_mbox - request inbound mailbox service
|
|
* @mport: RIO master port from which to allocate the mailbox resource
|
|
* @dev_id: Device specific pointer to pass on event
|
|
* @mbox: Mailbox number to claim
|
|
* @entries: Number of entries in inbound mailbox queue
|
|
* @minb: Callback to execute when inbound message is received
|
|
*
|
|
* Requests ownership of an inbound mailbox resource and binds
|
|
* a callback function to the resource. Returns %0 on success.
|
|
*/
|
|
int rio_request_inb_mbox(struct rio_mport *mport,
|
|
void *dev_id,
|
|
int mbox,
|
|
int entries,
|
|
void (*minb) (struct rio_mport * mport, void *dev_id, int mbox,
|
|
int slot))
|
|
{
|
|
int rc = -ENOSYS;
|
|
struct resource *res;
|
|
|
|
if (mport->ops->open_inb_mbox == NULL)
|
|
goto out;
|
|
|
|
res = kmalloc(sizeof(struct resource), GFP_KERNEL);
|
|
|
|
if (res) {
|
|
rio_init_mbox_res(res, mbox, mbox);
|
|
|
|
/* Make sure this mailbox isn't in use */
|
|
if ((rc =
|
|
request_resource(&mport->riores[RIO_INB_MBOX_RESOURCE],
|
|
res)) < 0) {
|
|
kfree(res);
|
|
goto out;
|
|
}
|
|
|
|
mport->inb_msg[mbox].res = res;
|
|
|
|
/* Hook the inbound message callback */
|
|
mport->inb_msg[mbox].mcback = minb;
|
|
|
|
rc = mport->ops->open_inb_mbox(mport, dev_id, mbox, entries);
|
|
} else
|
|
rc = -ENOMEM;
|
|
|
|
out:
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* rio_release_inb_mbox - release inbound mailbox message service
|
|
* @mport: RIO master port from which to release the mailbox resource
|
|
* @mbox: Mailbox number to release
|
|
*
|
|
* Releases ownership of an inbound mailbox resource. Returns 0
|
|
* if the request has been satisfied.
|
|
*/
|
|
int rio_release_inb_mbox(struct rio_mport *mport, int mbox)
|
|
{
|
|
if (mport->ops->close_inb_mbox) {
|
|
mport->ops->close_inb_mbox(mport, mbox);
|
|
|
|
/* Release the mailbox resource */
|
|
return release_resource(mport->inb_msg[mbox].res);
|
|
} else
|
|
return -ENOSYS;
|
|
}
|
|
|
|
/**
|
|
* rio_request_outb_mbox - request outbound mailbox service
|
|
* @mport: RIO master port from which to allocate the mailbox resource
|
|
* @dev_id: Device specific pointer to pass on event
|
|
* @mbox: Mailbox number to claim
|
|
* @entries: Number of entries in outbound mailbox queue
|
|
* @moutb: Callback to execute when outbound message is sent
|
|
*
|
|
* Requests ownership of an outbound mailbox resource and binds
|
|
* a callback function to the resource. Returns 0 on success.
|
|
*/
|
|
int rio_request_outb_mbox(struct rio_mport *mport,
|
|
void *dev_id,
|
|
int mbox,
|
|
int entries,
|
|
void (*moutb) (struct rio_mport * mport, void *dev_id, int mbox, int slot))
|
|
{
|
|
int rc = -ENOSYS;
|
|
struct resource *res;
|
|
|
|
if (mport->ops->open_outb_mbox == NULL)
|
|
goto out;
|
|
|
|
res = kmalloc(sizeof(struct resource), GFP_KERNEL);
|
|
|
|
if (res) {
|
|
rio_init_mbox_res(res, mbox, mbox);
|
|
|
|
/* Make sure this outbound mailbox isn't in use */
|
|
if ((rc =
|
|
request_resource(&mport->riores[RIO_OUTB_MBOX_RESOURCE],
|
|
res)) < 0) {
|
|
kfree(res);
|
|
goto out;
|
|
}
|
|
|
|
mport->outb_msg[mbox].res = res;
|
|
|
|
/* Hook the inbound message callback */
|
|
mport->outb_msg[mbox].mcback = moutb;
|
|
|
|
rc = mport->ops->open_outb_mbox(mport, dev_id, mbox, entries);
|
|
} else
|
|
rc = -ENOMEM;
|
|
|
|
out:
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* rio_release_outb_mbox - release outbound mailbox message service
|
|
* @mport: RIO master port from which to release the mailbox resource
|
|
* @mbox: Mailbox number to release
|
|
*
|
|
* Releases ownership of an inbound mailbox resource. Returns 0
|
|
* if the request has been satisfied.
|
|
*/
|
|
int rio_release_outb_mbox(struct rio_mport *mport, int mbox)
|
|
{
|
|
if (mport->ops->close_outb_mbox) {
|
|
mport->ops->close_outb_mbox(mport, mbox);
|
|
|
|
/* Release the mailbox resource */
|
|
return release_resource(mport->outb_msg[mbox].res);
|
|
} else
|
|
return -ENOSYS;
|
|
}
|
|
|
|
/**
|
|
* rio_setup_inb_dbell - bind inbound doorbell callback
|
|
* @mport: RIO master port to bind the doorbell callback
|
|
* @dev_id: Device specific pointer to pass on event
|
|
* @res: Doorbell message resource
|
|
* @dinb: Callback to execute when doorbell is received
|
|
*
|
|
* Adds a doorbell resource/callback pair into a port's
|
|
* doorbell event list. Returns 0 if the request has been
|
|
* satisfied.
|
|
*/
|
|
static int
|
|
rio_setup_inb_dbell(struct rio_mport *mport, void *dev_id, struct resource *res,
|
|
void (*dinb) (struct rio_mport * mport, void *dev_id, u16 src, u16 dst,
|
|
u16 info))
|
|
{
|
|
int rc = 0;
|
|
struct rio_dbell *dbell;
|
|
|
|
if (!(dbell = kmalloc(sizeof(struct rio_dbell), GFP_KERNEL))) {
|
|
rc = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
dbell->res = res;
|
|
dbell->dinb = dinb;
|
|
dbell->dev_id = dev_id;
|
|
|
|
list_add_tail(&dbell->node, &mport->dbells);
|
|
|
|
out:
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* rio_request_inb_dbell - request inbound doorbell message service
|
|
* @mport: RIO master port from which to allocate the doorbell resource
|
|
* @dev_id: Device specific pointer to pass on event
|
|
* @start: Doorbell info range start
|
|
* @end: Doorbell info range end
|
|
* @dinb: Callback to execute when doorbell is received
|
|
*
|
|
* Requests ownership of an inbound doorbell resource and binds
|
|
* a callback function to the resource. Returns 0 if the request
|
|
* has been satisfied.
|
|
*/
|
|
int rio_request_inb_dbell(struct rio_mport *mport,
|
|
void *dev_id,
|
|
u16 start,
|
|
u16 end,
|
|
void (*dinb) (struct rio_mport * mport, void *dev_id, u16 src,
|
|
u16 dst, u16 info))
|
|
{
|
|
int rc = 0;
|
|
|
|
struct resource *res = kmalloc(sizeof(struct resource), GFP_KERNEL);
|
|
|
|
if (res) {
|
|
rio_init_dbell_res(res, start, end);
|
|
|
|
/* Make sure these doorbells aren't in use */
|
|
if ((rc =
|
|
request_resource(&mport->riores[RIO_DOORBELL_RESOURCE],
|
|
res)) < 0) {
|
|
kfree(res);
|
|
goto out;
|
|
}
|
|
|
|
/* Hook the doorbell callback */
|
|
rc = rio_setup_inb_dbell(mport, dev_id, res, dinb);
|
|
} else
|
|
rc = -ENOMEM;
|
|
|
|
out:
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* rio_release_inb_dbell - release inbound doorbell message service
|
|
* @mport: RIO master port from which to release the doorbell resource
|
|
* @start: Doorbell info range start
|
|
* @end: Doorbell info range end
|
|
*
|
|
* Releases ownership of an inbound doorbell resource and removes
|
|
* callback from the doorbell event list. Returns 0 if the request
|
|
* has been satisfied.
|
|
*/
|
|
int rio_release_inb_dbell(struct rio_mport *mport, u16 start, u16 end)
|
|
{
|
|
int rc = 0, found = 0;
|
|
struct rio_dbell *dbell;
|
|
|
|
list_for_each_entry(dbell, &mport->dbells, node) {
|
|
if ((dbell->res->start == start) && (dbell->res->end == end)) {
|
|
found = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* If we can't find an exact match, fail */
|
|
if (!found) {
|
|
rc = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
/* Delete from list */
|
|
list_del(&dbell->node);
|
|
|
|
/* Release the doorbell resource */
|
|
rc = release_resource(dbell->res);
|
|
|
|
/* Free the doorbell event */
|
|
kfree(dbell);
|
|
|
|
out:
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* rio_request_outb_dbell - request outbound doorbell message range
|
|
* @rdev: RIO device from which to allocate the doorbell resource
|
|
* @start: Doorbell message range start
|
|
* @end: Doorbell message range end
|
|
*
|
|
* Requests ownership of a doorbell message range. Returns a resource
|
|
* if the request has been satisfied or %NULL on failure.
|
|
*/
|
|
struct resource *rio_request_outb_dbell(struct rio_dev *rdev, u16 start,
|
|
u16 end)
|
|
{
|
|
struct resource *res = kmalloc(sizeof(struct resource), GFP_KERNEL);
|
|
|
|
if (res) {
|
|
rio_init_dbell_res(res, start, end);
|
|
|
|
/* Make sure these doorbells aren't in use */
|
|
if (request_resource(&rdev->riores[RIO_DOORBELL_RESOURCE], res)
|
|
< 0) {
|
|
kfree(res);
|
|
res = NULL;
|
|
}
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
/**
|
|
* rio_release_outb_dbell - release outbound doorbell message range
|
|
* @rdev: RIO device from which to release the doorbell resource
|
|
* @res: Doorbell resource to be freed
|
|
*
|
|
* Releases ownership of a doorbell message range. Returns 0 if the
|
|
* request has been satisfied.
|
|
*/
|
|
int rio_release_outb_dbell(struct rio_dev *rdev, struct resource *res)
|
|
{
|
|
int rc = release_resource(res);
|
|
|
|
kfree(res);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* rio_request_inb_pwrite - request inbound port-write message service
|
|
* @rdev: RIO device to which register inbound port-write callback routine
|
|
* @pwcback: Callback routine to execute when port-write is received
|
|
*
|
|
* Binds a port-write callback function to the RapidIO device.
|
|
* Returns 0 if the request has been satisfied.
|
|
*/
|
|
int rio_request_inb_pwrite(struct rio_dev *rdev,
|
|
int (*pwcback)(struct rio_dev *rdev, union rio_pw_msg *msg, int step))
|
|
{
|
|
int rc = 0;
|
|
|
|
spin_lock(&rio_global_list_lock);
|
|
if (rdev->pwcback != NULL)
|
|
rc = -ENOMEM;
|
|
else
|
|
rdev->pwcback = pwcback;
|
|
|
|
spin_unlock(&rio_global_list_lock);
|
|
return rc;
|
|
}
|
|
EXPORT_SYMBOL_GPL(rio_request_inb_pwrite);
|
|
|
|
/**
|
|
* rio_release_inb_pwrite - release inbound port-write message service
|
|
* @rdev: RIO device which registered for inbound port-write callback
|
|
*
|
|
* Removes callback from the rio_dev structure. Returns 0 if the request
|
|
* has been satisfied.
|
|
*/
|
|
int rio_release_inb_pwrite(struct rio_dev *rdev)
|
|
{
|
|
int rc = -ENOMEM;
|
|
|
|
spin_lock(&rio_global_list_lock);
|
|
if (rdev->pwcback) {
|
|
rdev->pwcback = NULL;
|
|
rc = 0;
|
|
}
|
|
|
|
spin_unlock(&rio_global_list_lock);
|
|
return rc;
|
|
}
|
|
EXPORT_SYMBOL_GPL(rio_release_inb_pwrite);
|
|
|
|
/**
|
|
* rio_mport_get_physefb - Helper function that returns register offset
|
|
* for Physical Layer Extended Features Block.
|
|
* @port: Master port to issue transaction
|
|
* @local: Indicate a local master port or remote device access
|
|
* @destid: Destination ID of the device
|
|
* @hopcount: Number of switch hops to the device
|
|
*/
|
|
u32
|
|
rio_mport_get_physefb(struct rio_mport *port, int local,
|
|
u16 destid, u8 hopcount)
|
|
{
|
|
u32 ext_ftr_ptr;
|
|
u32 ftr_header;
|
|
|
|
ext_ftr_ptr = rio_mport_get_efb(port, local, destid, hopcount, 0);
|
|
|
|
while (ext_ftr_ptr) {
|
|
if (local)
|
|
rio_local_read_config_32(port, ext_ftr_ptr,
|
|
&ftr_header);
|
|
else
|
|
rio_mport_read_config_32(port, destid, hopcount,
|
|
ext_ftr_ptr, &ftr_header);
|
|
|
|
ftr_header = RIO_GET_BLOCK_ID(ftr_header);
|
|
switch (ftr_header) {
|
|
|
|
case RIO_EFB_SER_EP_ID_V13P:
|
|
case RIO_EFB_SER_EP_REC_ID_V13P:
|
|
case RIO_EFB_SER_EP_FREE_ID_V13P:
|
|
case RIO_EFB_SER_EP_ID:
|
|
case RIO_EFB_SER_EP_REC_ID:
|
|
case RIO_EFB_SER_EP_FREE_ID:
|
|
case RIO_EFB_SER_EP_FREC_ID:
|
|
|
|
return ext_ftr_ptr;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
ext_ftr_ptr = rio_mport_get_efb(port, local, destid,
|
|
hopcount, ext_ftr_ptr);
|
|
}
|
|
|
|
return ext_ftr_ptr;
|
|
}
|
|
|
|
/**
|
|
* rio_get_comptag - Begin or continue searching for a RIO device by component tag
|
|
* @comp_tag: RIO component tag to match
|
|
* @from: Previous RIO device found in search, or %NULL for new search
|
|
*
|
|
* Iterates through the list of known RIO devices. If a RIO device is
|
|
* found with a matching @comp_tag, a pointer to its device
|
|
* structure is returned. Otherwise, %NULL is returned. A new search
|
|
* is initiated by passing %NULL to the @from argument. Otherwise, if
|
|
* @from is not %NULL, searches continue from next device on the global
|
|
* list.
|
|
*/
|
|
struct rio_dev *rio_get_comptag(u32 comp_tag, struct rio_dev *from)
|
|
{
|
|
struct list_head *n;
|
|
struct rio_dev *rdev;
|
|
|
|
spin_lock(&rio_global_list_lock);
|
|
n = from ? from->global_list.next : rio_devices.next;
|
|
|
|
while (n && (n != &rio_devices)) {
|
|
rdev = rio_dev_g(n);
|
|
if (rdev->comp_tag == comp_tag)
|
|
goto exit;
|
|
n = n->next;
|
|
}
|
|
rdev = NULL;
|
|
exit:
|
|
spin_unlock(&rio_global_list_lock);
|
|
return rdev;
|
|
}
|
|
|
|
/**
|
|
* rio_set_port_lockout - Sets/clears LOCKOUT bit (RIO EM 1.3) for a switch port.
|
|
* @rdev: Pointer to RIO device control structure
|
|
* @pnum: Switch port number to set LOCKOUT bit
|
|
* @lock: Operation : set (=1) or clear (=0)
|
|
*/
|
|
int rio_set_port_lockout(struct rio_dev *rdev, u32 pnum, int lock)
|
|
{
|
|
u32 regval;
|
|
|
|
rio_read_config_32(rdev,
|
|
rdev->phys_efptr + RIO_PORT_N_CTL_CSR(pnum),
|
|
®val);
|
|
if (lock)
|
|
regval |= RIO_PORT_N_CTL_LOCKOUT;
|
|
else
|
|
regval &= ~RIO_PORT_N_CTL_LOCKOUT;
|
|
|
|
rio_write_config_32(rdev,
|
|
rdev->phys_efptr + RIO_PORT_N_CTL_CSR(pnum),
|
|
regval);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* rio_chk_dev_route - Validate route to the specified device.
|
|
* @rdev: RIO device failed to respond
|
|
* @nrdev: Last active device on the route to rdev
|
|
* @npnum: nrdev's port number on the route to rdev
|
|
*
|
|
* Follows a route to the specified RIO device to determine the last available
|
|
* device (and corresponding RIO port) on the route.
|
|
*/
|
|
static int
|
|
rio_chk_dev_route(struct rio_dev *rdev, struct rio_dev **nrdev, int *npnum)
|
|
{
|
|
u32 result;
|
|
int p_port, rc = -EIO;
|
|
struct rio_dev *prev = NULL;
|
|
|
|
/* Find switch with failed RIO link */
|
|
while (rdev->prev && (rdev->prev->pef & RIO_PEF_SWITCH)) {
|
|
if (!rio_read_config_32(rdev->prev, RIO_DEV_ID_CAR, &result)) {
|
|
prev = rdev->prev;
|
|
break;
|
|
}
|
|
rdev = rdev->prev;
|
|
}
|
|
|
|
if (prev == NULL)
|
|
goto err_out;
|
|
|
|
p_port = prev->rswitch->route_table[rdev->destid];
|
|
|
|
if (p_port != RIO_INVALID_ROUTE) {
|
|
pr_debug("RIO: link failed on [%s]-P%d\n",
|
|
rio_name(prev), p_port);
|
|
*nrdev = prev;
|
|
*npnum = p_port;
|
|
rc = 0;
|
|
} else
|
|
pr_debug("RIO: failed to trace route to %s\n", rio_name(rdev));
|
|
err_out:
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* rio_mport_chk_dev_access - Validate access to the specified device.
|
|
* @mport: Master port to send transactions
|
|
* @destid: Device destination ID in network
|
|
* @hopcount: Number of hops into the network
|
|
*/
|
|
int
|
|
rio_mport_chk_dev_access(struct rio_mport *mport, u16 destid, u8 hopcount)
|
|
{
|
|
int i = 0;
|
|
u32 tmp;
|
|
|
|
while (rio_mport_read_config_32(mport, destid, hopcount,
|
|
RIO_DEV_ID_CAR, &tmp)) {
|
|
i++;
|
|
if (i == RIO_MAX_CHK_RETRY)
|
|
return -EIO;
|
|
mdelay(1);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* rio_chk_dev_access - Validate access to the specified device.
|
|
* @rdev: Pointer to RIO device control structure
|
|
*/
|
|
static int rio_chk_dev_access(struct rio_dev *rdev)
|
|
{
|
|
return rio_mport_chk_dev_access(rdev->net->hport,
|
|
rdev->destid, rdev->hopcount);
|
|
}
|
|
|
|
/**
|
|
* rio_get_input_status - Sends a Link-Request/Input-Status control symbol and
|
|
* returns link-response (if requested).
|
|
* @rdev: RIO devive to issue Input-status command
|
|
* @pnum: Device port number to issue the command
|
|
* @lnkresp: Response from a link partner
|
|
*/
|
|
static int
|
|
rio_get_input_status(struct rio_dev *rdev, int pnum, u32 *lnkresp)
|
|
{
|
|
u32 regval;
|
|
int checkcount;
|
|
|
|
if (lnkresp) {
|
|
/* Read from link maintenance response register
|
|
* to clear valid bit */
|
|
rio_read_config_32(rdev,
|
|
rdev->phys_efptr + RIO_PORT_N_MNT_RSP_CSR(pnum),
|
|
®val);
|
|
udelay(50);
|
|
}
|
|
|
|
/* Issue Input-status command */
|
|
rio_write_config_32(rdev,
|
|
rdev->phys_efptr + RIO_PORT_N_MNT_REQ_CSR(pnum),
|
|
RIO_MNT_REQ_CMD_IS);
|
|
|
|
/* Exit if the response is not expected */
|
|
if (lnkresp == NULL)
|
|
return 0;
|
|
|
|
checkcount = 3;
|
|
while (checkcount--) {
|
|
udelay(50);
|
|
rio_read_config_32(rdev,
|
|
rdev->phys_efptr + RIO_PORT_N_MNT_RSP_CSR(pnum),
|
|
®val);
|
|
if (regval & RIO_PORT_N_MNT_RSP_RVAL) {
|
|
*lnkresp = regval;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return -EIO;
|
|
}
|
|
|
|
/**
|
|
* rio_clr_err_stopped - Clears port Error-stopped states.
|
|
* @rdev: Pointer to RIO device control structure
|
|
* @pnum: Switch port number to clear errors
|
|
* @err_status: port error status (if 0 reads register from device)
|
|
*/
|
|
static int rio_clr_err_stopped(struct rio_dev *rdev, u32 pnum, u32 err_status)
|
|
{
|
|
struct rio_dev *nextdev = rdev->rswitch->nextdev[pnum];
|
|
u32 regval;
|
|
u32 far_ackid, far_linkstat, near_ackid;
|
|
|
|
if (err_status == 0)
|
|
rio_read_config_32(rdev,
|
|
rdev->phys_efptr + RIO_PORT_N_ERR_STS_CSR(pnum),
|
|
&err_status);
|
|
|
|
if (err_status & RIO_PORT_N_ERR_STS_PW_OUT_ES) {
|
|
pr_debug("RIO_EM: servicing Output Error-Stopped state\n");
|
|
/*
|
|
* Send a Link-Request/Input-Status control symbol
|
|
*/
|
|
if (rio_get_input_status(rdev, pnum, ®val)) {
|
|
pr_debug("RIO_EM: Input-status response timeout\n");
|
|
goto rd_err;
|
|
}
|
|
|
|
pr_debug("RIO_EM: SP%d Input-status response=0x%08x\n",
|
|
pnum, regval);
|
|
far_ackid = (regval & RIO_PORT_N_MNT_RSP_ASTAT) >> 5;
|
|
far_linkstat = regval & RIO_PORT_N_MNT_RSP_LSTAT;
|
|
rio_read_config_32(rdev,
|
|
rdev->phys_efptr + RIO_PORT_N_ACK_STS_CSR(pnum),
|
|
®val);
|
|
pr_debug("RIO_EM: SP%d_ACK_STS_CSR=0x%08x\n", pnum, regval);
|
|
near_ackid = (regval & RIO_PORT_N_ACK_INBOUND) >> 24;
|
|
pr_debug("RIO_EM: SP%d far_ackID=0x%02x far_linkstat=0x%02x" \
|
|
" near_ackID=0x%02x\n",
|
|
pnum, far_ackid, far_linkstat, near_ackid);
|
|
|
|
/*
|
|
* If required, synchronize ackIDs of near and
|
|
* far sides.
|
|
*/
|
|
if ((far_ackid != ((regval & RIO_PORT_N_ACK_OUTSTAND) >> 8)) ||
|
|
(far_ackid != (regval & RIO_PORT_N_ACK_OUTBOUND))) {
|
|
/* Align near outstanding/outbound ackIDs with
|
|
* far inbound.
|
|
*/
|
|
rio_write_config_32(rdev,
|
|
rdev->phys_efptr + RIO_PORT_N_ACK_STS_CSR(pnum),
|
|
(near_ackid << 24) |
|
|
(far_ackid << 8) | far_ackid);
|
|
/* Align far outstanding/outbound ackIDs with
|
|
* near inbound.
|
|
*/
|
|
far_ackid++;
|
|
if (nextdev)
|
|
rio_write_config_32(nextdev,
|
|
nextdev->phys_efptr +
|
|
RIO_PORT_N_ACK_STS_CSR(RIO_GET_PORT_NUM(nextdev->swpinfo)),
|
|
(far_ackid << 24) |
|
|
(near_ackid << 8) | near_ackid);
|
|
else
|
|
pr_debug("RIO_EM: Invalid nextdev pointer (NULL)\n");
|
|
}
|
|
rd_err:
|
|
rio_read_config_32(rdev,
|
|
rdev->phys_efptr + RIO_PORT_N_ERR_STS_CSR(pnum),
|
|
&err_status);
|
|
pr_debug("RIO_EM: SP%d_ERR_STS_CSR=0x%08x\n", pnum, err_status);
|
|
}
|
|
|
|
if ((err_status & RIO_PORT_N_ERR_STS_PW_INP_ES) && nextdev) {
|
|
pr_debug("RIO_EM: servicing Input Error-Stopped state\n");
|
|
rio_get_input_status(nextdev,
|
|
RIO_GET_PORT_NUM(nextdev->swpinfo), NULL);
|
|
udelay(50);
|
|
|
|
rio_read_config_32(rdev,
|
|
rdev->phys_efptr + RIO_PORT_N_ERR_STS_CSR(pnum),
|
|
&err_status);
|
|
pr_debug("RIO_EM: SP%d_ERR_STS_CSR=0x%08x\n", pnum, err_status);
|
|
}
|
|
|
|
return (err_status & (RIO_PORT_N_ERR_STS_PW_OUT_ES |
|
|
RIO_PORT_N_ERR_STS_PW_INP_ES)) ? 1 : 0;
|
|
}
|
|
|
|
/**
|
|
* rio_inb_pwrite_handler - process inbound port-write message
|
|
* @pw_msg: pointer to inbound port-write message
|
|
*
|
|
* Processes an inbound port-write message. Returns 0 if the request
|
|
* has been satisfied.
|
|
*/
|
|
int rio_inb_pwrite_handler(union rio_pw_msg *pw_msg)
|
|
{
|
|
struct rio_dev *rdev;
|
|
u32 err_status, em_perrdet, em_ltlerrdet;
|
|
int rc, portnum;
|
|
|
|
rdev = rio_get_comptag((pw_msg->em.comptag & RIO_CTAG_UDEVID), NULL);
|
|
if (rdev == NULL) {
|
|
/* Device removed or enumeration error */
|
|
pr_debug("RIO: %s No matching device for CTag 0x%08x\n",
|
|
__func__, pw_msg->em.comptag);
|
|
return -EIO;
|
|
}
|
|
|
|
pr_debug("RIO: Port-Write message from %s\n", rio_name(rdev));
|
|
|
|
#ifdef DEBUG_PW
|
|
{
|
|
u32 i;
|
|
for (i = 0; i < RIO_PW_MSG_SIZE/sizeof(u32);) {
|
|
pr_debug("0x%02x: %08x %08x %08x %08x\n",
|
|
i*4, pw_msg->raw[i], pw_msg->raw[i + 1],
|
|
pw_msg->raw[i + 2], pw_msg->raw[i + 3]);
|
|
i += 4;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/* Call an external service function (if such is registered
|
|
* for this device). This may be the service for endpoints that send
|
|
* device-specific port-write messages. End-point messages expected
|
|
* to be handled completely by EP specific device driver.
|
|
* For switches rc==0 signals that no standard processing required.
|
|
*/
|
|
if (rdev->pwcback != NULL) {
|
|
rc = rdev->pwcback(rdev, pw_msg, 0);
|
|
if (rc == 0)
|
|
return 0;
|
|
}
|
|
|
|
portnum = pw_msg->em.is_port & 0xFF;
|
|
|
|
/* Check if device and route to it are functional:
|
|
* Sometimes devices may send PW message(s) just before being
|
|
* powered down (or link being lost).
|
|
*/
|
|
if (rio_chk_dev_access(rdev)) {
|
|
pr_debug("RIO: device access failed - get link partner\n");
|
|
/* Scan route to the device and identify failed link.
|
|
* This will replace device and port reported in PW message.
|
|
* PW message should not be used after this point.
|
|
*/
|
|
if (rio_chk_dev_route(rdev, &rdev, &portnum)) {
|
|
pr_err("RIO: Route trace for %s failed\n",
|
|
rio_name(rdev));
|
|
return -EIO;
|
|
}
|
|
pw_msg = NULL;
|
|
}
|
|
|
|
/* For End-point devices processing stops here */
|
|
if (!(rdev->pef & RIO_PEF_SWITCH))
|
|
return 0;
|
|
|
|
if (rdev->phys_efptr == 0) {
|
|
pr_err("RIO_PW: Bad switch initialization for %s\n",
|
|
rio_name(rdev));
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Process the port-write notification from switch
|
|
*/
|
|
if (rdev->rswitch->em_handle)
|
|
rdev->rswitch->em_handle(rdev, portnum);
|
|
|
|
rio_read_config_32(rdev,
|
|
rdev->phys_efptr + RIO_PORT_N_ERR_STS_CSR(portnum),
|
|
&err_status);
|
|
pr_debug("RIO_PW: SP%d_ERR_STS_CSR=0x%08x\n", portnum, err_status);
|
|
|
|
if (err_status & RIO_PORT_N_ERR_STS_PORT_OK) {
|
|
|
|
if (!(rdev->rswitch->port_ok & (1 << portnum))) {
|
|
rdev->rswitch->port_ok |= (1 << portnum);
|
|
rio_set_port_lockout(rdev, portnum, 0);
|
|
/* Schedule Insertion Service */
|
|
pr_debug("RIO_PW: Device Insertion on [%s]-P%d\n",
|
|
rio_name(rdev), portnum);
|
|
}
|
|
|
|
/* Clear error-stopped states (if reported).
|
|
* Depending on the link partner state, two attempts
|
|
* may be needed for successful recovery.
|
|
*/
|
|
if (err_status & (RIO_PORT_N_ERR_STS_PW_OUT_ES |
|
|
RIO_PORT_N_ERR_STS_PW_INP_ES)) {
|
|
if (rio_clr_err_stopped(rdev, portnum, err_status))
|
|
rio_clr_err_stopped(rdev, portnum, 0);
|
|
}
|
|
} else { /* if (err_status & RIO_PORT_N_ERR_STS_PORT_UNINIT) */
|
|
|
|
if (rdev->rswitch->port_ok & (1 << portnum)) {
|
|
rdev->rswitch->port_ok &= ~(1 << portnum);
|
|
rio_set_port_lockout(rdev, portnum, 1);
|
|
|
|
rio_write_config_32(rdev,
|
|
rdev->phys_efptr +
|
|
RIO_PORT_N_ACK_STS_CSR(portnum),
|
|
RIO_PORT_N_ACK_CLEAR);
|
|
|
|
/* Schedule Extraction Service */
|
|
pr_debug("RIO_PW: Device Extraction on [%s]-P%d\n",
|
|
rio_name(rdev), portnum);
|
|
}
|
|
}
|
|
|
|
rio_read_config_32(rdev,
|
|
rdev->em_efptr + RIO_EM_PN_ERR_DETECT(portnum), &em_perrdet);
|
|
if (em_perrdet) {
|
|
pr_debug("RIO_PW: RIO_EM_P%d_ERR_DETECT=0x%08x\n",
|
|
portnum, em_perrdet);
|
|
/* Clear EM Port N Error Detect CSR */
|
|
rio_write_config_32(rdev,
|
|
rdev->em_efptr + RIO_EM_PN_ERR_DETECT(portnum), 0);
|
|
}
|
|
|
|
rio_read_config_32(rdev,
|
|
rdev->em_efptr + RIO_EM_LTL_ERR_DETECT, &em_ltlerrdet);
|
|
if (em_ltlerrdet) {
|
|
pr_debug("RIO_PW: RIO_EM_LTL_ERR_DETECT=0x%08x\n",
|
|
em_ltlerrdet);
|
|
/* Clear EM L/T Layer Error Detect CSR */
|
|
rio_write_config_32(rdev,
|
|
rdev->em_efptr + RIO_EM_LTL_ERR_DETECT, 0);
|
|
}
|
|
|
|
/* Clear remaining error bits and Port-Write Pending bit */
|
|
rio_write_config_32(rdev,
|
|
rdev->phys_efptr + RIO_PORT_N_ERR_STS_CSR(portnum),
|
|
err_status);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(rio_inb_pwrite_handler);
|
|
|
|
/**
|
|
* rio_mport_get_efb - get pointer to next extended features block
|
|
* @port: Master port to issue transaction
|
|
* @local: Indicate a local master port or remote device access
|
|
* @destid: Destination ID of the device
|
|
* @hopcount: Number of switch hops to the device
|
|
* @from: Offset of current Extended Feature block header (if 0 starts
|
|
* from ExtFeaturePtr)
|
|
*/
|
|
u32
|
|
rio_mport_get_efb(struct rio_mport *port, int local, u16 destid,
|
|
u8 hopcount, u32 from)
|
|
{
|
|
u32 reg_val;
|
|
|
|
if (from == 0) {
|
|
if (local)
|
|
rio_local_read_config_32(port, RIO_ASM_INFO_CAR,
|
|
®_val);
|
|
else
|
|
rio_mport_read_config_32(port, destid, hopcount,
|
|
RIO_ASM_INFO_CAR, ®_val);
|
|
return reg_val & RIO_EXT_FTR_PTR_MASK;
|
|
} else {
|
|
if (local)
|
|
rio_local_read_config_32(port, from, ®_val);
|
|
else
|
|
rio_mport_read_config_32(port, destid, hopcount,
|
|
from, ®_val);
|
|
return RIO_GET_BLOCK_ID(reg_val);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* rio_mport_get_feature - query for devices' extended features
|
|
* @port: Master port to issue transaction
|
|
* @local: Indicate a local master port or remote device access
|
|
* @destid: Destination ID of the device
|
|
* @hopcount: Number of switch hops to the device
|
|
* @ftr: Extended feature code
|
|
*
|
|
* Tell if a device supports a given RapidIO capability.
|
|
* Returns the offset of the requested extended feature
|
|
* block within the device's RIO configuration space or
|
|
* 0 in case the device does not support it. Possible
|
|
* values for @ftr:
|
|
*
|
|
* %RIO_EFB_PAR_EP_ID LP/LVDS EP Devices
|
|
*
|
|
* %RIO_EFB_PAR_EP_REC_ID LP/LVDS EP Recovery Devices
|
|
*
|
|
* %RIO_EFB_PAR_EP_FREE_ID LP/LVDS EP Free Devices
|
|
*
|
|
* %RIO_EFB_SER_EP_ID LP/Serial EP Devices
|
|
*
|
|
* %RIO_EFB_SER_EP_REC_ID LP/Serial EP Recovery Devices
|
|
*
|
|
* %RIO_EFB_SER_EP_FREE_ID LP/Serial EP Free Devices
|
|
*/
|
|
u32
|
|
rio_mport_get_feature(struct rio_mport * port, int local, u16 destid,
|
|
u8 hopcount, int ftr)
|
|
{
|
|
u32 asm_info, ext_ftr_ptr, ftr_header;
|
|
|
|
if (local)
|
|
rio_local_read_config_32(port, RIO_ASM_INFO_CAR, &asm_info);
|
|
else
|
|
rio_mport_read_config_32(port, destid, hopcount,
|
|
RIO_ASM_INFO_CAR, &asm_info);
|
|
|
|
ext_ftr_ptr = asm_info & RIO_EXT_FTR_PTR_MASK;
|
|
|
|
while (ext_ftr_ptr) {
|
|
if (local)
|
|
rio_local_read_config_32(port, ext_ftr_ptr,
|
|
&ftr_header);
|
|
else
|
|
rio_mport_read_config_32(port, destid, hopcount,
|
|
ext_ftr_ptr, &ftr_header);
|
|
if (RIO_GET_BLOCK_ID(ftr_header) == ftr)
|
|
return ext_ftr_ptr;
|
|
if (!(ext_ftr_ptr = RIO_GET_BLOCK_PTR(ftr_header)))
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* rio_get_asm - Begin or continue searching for a RIO device by vid/did/asm_vid/asm_did
|
|
* @vid: RIO vid to match or %RIO_ANY_ID to match all vids
|
|
* @did: RIO did to match or %RIO_ANY_ID to match all dids
|
|
* @asm_vid: RIO asm_vid to match or %RIO_ANY_ID to match all asm_vids
|
|
* @asm_did: RIO asm_did to match or %RIO_ANY_ID to match all asm_dids
|
|
* @from: Previous RIO device found in search, or %NULL for new search
|
|
*
|
|
* Iterates through the list of known RIO devices. If a RIO device is
|
|
* found with a matching @vid, @did, @asm_vid, @asm_did, the reference
|
|
* count to the device is incrememted and a pointer to its device
|
|
* structure is returned. Otherwise, %NULL is returned. A new search
|
|
* is initiated by passing %NULL to the @from argument. Otherwise, if
|
|
* @from is not %NULL, searches continue from next device on the global
|
|
* list. The reference count for @from is always decremented if it is
|
|
* not %NULL.
|
|
*/
|
|
struct rio_dev *rio_get_asm(u16 vid, u16 did,
|
|
u16 asm_vid, u16 asm_did, struct rio_dev *from)
|
|
{
|
|
struct list_head *n;
|
|
struct rio_dev *rdev;
|
|
|
|
WARN_ON(in_interrupt());
|
|
spin_lock(&rio_global_list_lock);
|
|
n = from ? from->global_list.next : rio_devices.next;
|
|
|
|
while (n && (n != &rio_devices)) {
|
|
rdev = rio_dev_g(n);
|
|
if ((vid == RIO_ANY_ID || rdev->vid == vid) &&
|
|
(did == RIO_ANY_ID || rdev->did == did) &&
|
|
(asm_vid == RIO_ANY_ID || rdev->asm_vid == asm_vid) &&
|
|
(asm_did == RIO_ANY_ID || rdev->asm_did == asm_did))
|
|
goto exit;
|
|
n = n->next;
|
|
}
|
|
rdev = NULL;
|
|
exit:
|
|
rio_dev_put(from);
|
|
rdev = rio_dev_get(rdev);
|
|
spin_unlock(&rio_global_list_lock);
|
|
return rdev;
|
|
}
|
|
|
|
/**
|
|
* rio_get_device - Begin or continue searching for a RIO device by vid/did
|
|
* @vid: RIO vid to match or %RIO_ANY_ID to match all vids
|
|
* @did: RIO did to match or %RIO_ANY_ID to match all dids
|
|
* @from: Previous RIO device found in search, or %NULL for new search
|
|
*
|
|
* Iterates through the list of known RIO devices. If a RIO device is
|
|
* found with a matching @vid and @did, the reference count to the
|
|
* device is incrememted and a pointer to its device structure is returned.
|
|
* Otherwise, %NULL is returned. A new search is initiated by passing %NULL
|
|
* to the @from argument. Otherwise, if @from is not %NULL, searches
|
|
* continue from next device on the global list. The reference count for
|
|
* @from is always decremented if it is not %NULL.
|
|
*/
|
|
struct rio_dev *rio_get_device(u16 vid, u16 did, struct rio_dev *from)
|
|
{
|
|
return rio_get_asm(vid, did, RIO_ANY_ID, RIO_ANY_ID, from);
|
|
}
|
|
|
|
/**
|
|
* rio_std_route_add_entry - Add switch route table entry using standard
|
|
* registers defined in RIO specification rev.1.3
|
|
* @mport: Master port to issue transaction
|
|
* @destid: Destination ID of the device
|
|
* @hopcount: Number of switch hops to the device
|
|
* @table: routing table ID (global or port-specific)
|
|
* @route_destid: destID entry in the RT
|
|
* @route_port: destination port for specified destID
|
|
*/
|
|
int rio_std_route_add_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
|
|
u16 table, u16 route_destid, u8 route_port)
|
|
{
|
|
if (table == RIO_GLOBAL_TABLE) {
|
|
rio_mport_write_config_32(mport, destid, hopcount,
|
|
RIO_STD_RTE_CONF_DESTID_SEL_CSR,
|
|
(u32)route_destid);
|
|
rio_mport_write_config_32(mport, destid, hopcount,
|
|
RIO_STD_RTE_CONF_PORT_SEL_CSR,
|
|
(u32)route_port);
|
|
}
|
|
|
|
udelay(10);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* rio_std_route_get_entry - Read switch route table entry (port number)
|
|
* associated with specified destID using standard registers defined in RIO
|
|
* specification rev.1.3
|
|
* @mport: Master port to issue transaction
|
|
* @destid: Destination ID of the device
|
|
* @hopcount: Number of switch hops to the device
|
|
* @table: routing table ID (global or port-specific)
|
|
* @route_destid: destID entry in the RT
|
|
* @route_port: returned destination port for specified destID
|
|
*/
|
|
int rio_std_route_get_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
|
|
u16 table, u16 route_destid, u8 *route_port)
|
|
{
|
|
u32 result;
|
|
|
|
if (table == RIO_GLOBAL_TABLE) {
|
|
rio_mport_write_config_32(mport, destid, hopcount,
|
|
RIO_STD_RTE_CONF_DESTID_SEL_CSR, route_destid);
|
|
rio_mport_read_config_32(mport, destid, hopcount,
|
|
RIO_STD_RTE_CONF_PORT_SEL_CSR, &result);
|
|
|
|
*route_port = (u8)result;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* rio_std_route_clr_table - Clear swotch route table using standard registers
|
|
* defined in RIO specification rev.1.3.
|
|
* @mport: Master port to issue transaction
|
|
* @destid: Destination ID of the device
|
|
* @hopcount: Number of switch hops to the device
|
|
* @table: routing table ID (global or port-specific)
|
|
*/
|
|
int rio_std_route_clr_table(struct rio_mport *mport, u16 destid, u8 hopcount,
|
|
u16 table)
|
|
{
|
|
u32 max_destid = 0xff;
|
|
u32 i, pef, id_inc = 1, ext_cfg = 0;
|
|
u32 port_sel = RIO_INVALID_ROUTE;
|
|
|
|
if (table == RIO_GLOBAL_TABLE) {
|
|
rio_mport_read_config_32(mport, destid, hopcount,
|
|
RIO_PEF_CAR, &pef);
|
|
|
|
if (mport->sys_size) {
|
|
rio_mport_read_config_32(mport, destid, hopcount,
|
|
RIO_SWITCH_RT_LIMIT,
|
|
&max_destid);
|
|
max_destid &= RIO_RT_MAX_DESTID;
|
|
}
|
|
|
|
if (pef & RIO_PEF_EXT_RT) {
|
|
ext_cfg = 0x80000000;
|
|
id_inc = 4;
|
|
port_sel = (RIO_INVALID_ROUTE << 24) |
|
|
(RIO_INVALID_ROUTE << 16) |
|
|
(RIO_INVALID_ROUTE << 8) |
|
|
RIO_INVALID_ROUTE;
|
|
}
|
|
|
|
for (i = 0; i <= max_destid;) {
|
|
rio_mport_write_config_32(mport, destid, hopcount,
|
|
RIO_STD_RTE_CONF_DESTID_SEL_CSR,
|
|
ext_cfg | i);
|
|
rio_mport_write_config_32(mport, destid, hopcount,
|
|
RIO_STD_RTE_CONF_PORT_SEL_CSR,
|
|
port_sel);
|
|
i += id_inc;
|
|
}
|
|
}
|
|
|
|
udelay(10);
|
|
return 0;
|
|
}
|
|
|
|
static void rio_fixup_device(struct rio_dev *dev)
|
|
{
|
|
}
|
|
|
|
static int __devinit rio_init(void)
|
|
{
|
|
struct rio_dev *dev = NULL;
|
|
|
|
while ((dev = rio_get_device(RIO_ANY_ID, RIO_ANY_ID, dev)) != NULL) {
|
|
rio_fixup_device(dev);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int __devinit rio_init_mports(void)
|
|
{
|
|
struct rio_mport *port;
|
|
|
|
list_for_each_entry(port, &rio_mports, node) {
|
|
if (port->host_deviceid >= 0)
|
|
rio_enum_mport(port);
|
|
else
|
|
rio_disc_mport(port);
|
|
}
|
|
|
|
rio_init();
|
|
|
|
return 0;
|
|
}
|
|
|
|
device_initcall_sync(rio_init_mports);
|
|
|
|
static int hdids[RIO_MAX_MPORTS + 1];
|
|
|
|
static int rio_get_hdid(int index)
|
|
{
|
|
if (!hdids[0] || hdids[0] <= index || index >= RIO_MAX_MPORTS)
|
|
return -1;
|
|
|
|
return hdids[index + 1];
|
|
}
|
|
|
|
static int rio_hdid_setup(char *str)
|
|
{
|
|
(void)get_options(str, ARRAY_SIZE(hdids), hdids);
|
|
return 1;
|
|
}
|
|
|
|
__setup("riohdid=", rio_hdid_setup);
|
|
|
|
int rio_register_mport(struct rio_mport *port)
|
|
{
|
|
if (next_portid >= RIO_MAX_MPORTS) {
|
|
pr_err("RIO: reached specified max number of mports\n");
|
|
return 1;
|
|
}
|
|
|
|
port->id = next_portid++;
|
|
port->host_deviceid = rio_get_hdid(port->id);
|
|
list_add_tail(&port->node, &rio_mports);
|
|
return 0;
|
|
}
|
|
|
|
EXPORT_SYMBOL_GPL(rio_local_get_device_id);
|
|
EXPORT_SYMBOL_GPL(rio_get_device);
|
|
EXPORT_SYMBOL_GPL(rio_get_asm);
|
|
EXPORT_SYMBOL_GPL(rio_request_inb_dbell);
|
|
EXPORT_SYMBOL_GPL(rio_release_inb_dbell);
|
|
EXPORT_SYMBOL_GPL(rio_request_outb_dbell);
|
|
EXPORT_SYMBOL_GPL(rio_release_outb_dbell);
|
|
EXPORT_SYMBOL_GPL(rio_request_inb_mbox);
|
|
EXPORT_SYMBOL_GPL(rio_release_inb_mbox);
|
|
EXPORT_SYMBOL_GPL(rio_request_outb_mbox);
|
|
EXPORT_SYMBOL_GPL(rio_release_outb_mbox);
|