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authorLinus Torvalds <torvalds@linux-foundation.org>2009-06-22 12:51:28 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-22 12:51:28 -0700
commita9b011f5ac57cbaedb32a8149f3d39d7b2c1f0e0 (patch)
tree89c850cc9e2ed949f5fc3b99180cd6cb70db6160 /drivers
parentb5bdd43876e475724c662f99206f0349c67e33e6 (diff)
parentda6330fccc251db73945ee3eb6248985cf2574de (diff)
Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (22 commits) [S390] Update default configuration. [S390] kprobes: defer setting of ctlblk state [S390] Enable tick based perf_counter on s390. [S390] dasd: fix refcounting in dasd_change_state [S390] lockless idle time accounting [S390] driver_data access [S390] pm: fix build error for !SMP [S390] dasd_pm: fix stop flag handling [S390] ap/zcrypt: Suspend/Resume ap bus and zcrypt [S390] qdio: Sanitize do_QDIO sanity checks [S390] qdio: leave inbound SBALs primed [S390] qdio: merge AI tasklet into interrupt handler [S390] qdio: extract all primed SBALs at once [S390] qdio: fix check for running under z/VM [S390] qdio: move adapter interrupt tasklet code [S390] Use del_timer instead of del_timer_sync [S390] s390: remove DEBUG_MALLOC [S390] vt220 console: convert from bootmem to slab [S390] sclp console: convert from bootmem to slab [S390] 3270 console: convert from bootmem to slab ...
Diffstat (limited to 'drivers')
-rw-r--r--drivers/s390/block/dasd.c20
-rw-r--r--drivers/s390/block/dasd_eckd.c10
-rw-r--r--drivers/s390/char/con3215.c22
-rw-r--r--drivers/s390/char/con3270.c13
-rw-r--r--drivers/s390/char/monreader.c6
-rw-r--r--drivers/s390/char/raw3270.c36
-rw-r--r--drivers/s390/char/sclp_con.c7
-rw-r--r--drivers/s390/char/sclp_vt220.c18
-rw-r--r--drivers/s390/char/tape_core.c2
-rw-r--r--drivers/s390/char/vmlogrdr.c4
-rw-r--r--drivers/s390/char/vmur.c2
-rw-r--r--drivers/s390/cio/qdio.h11
-rw-r--r--drivers/s390/cio/qdio_debug.c3
-rw-r--r--drivers/s390/cio/qdio_main.c144
-rw-r--r--drivers/s390/cio/qdio_thinint.c114
-rw-r--r--drivers/s390/crypto/ap_bus.c85
-rw-r--r--drivers/s390/net/netiucv.c4
17 files changed, 229 insertions, 272 deletions
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index e5b84db0aa0..74983666865 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -470,7 +470,7 @@ static int dasd_decrease_state(struct dasd_device *device)
*/
static void dasd_change_state(struct dasd_device *device)
{
- int rc;
+ int rc;
if (device->state == device->target)
/* Already where we want to go today... */
@@ -479,8 +479,10 @@ static void dasd_change_state(struct dasd_device *device)
rc = dasd_increase_state(device);
else
rc = dasd_decrease_state(device);
- if (rc && rc != -EAGAIN)
- device->target = device->state;
+ if (rc == -EAGAIN)
+ return;
+ if (rc)
+ device->target = device->state;
if (device->state == device->target) {
wake_up(&dasd_init_waitq);
@@ -2503,15 +2505,25 @@ int dasd_generic_restore_device(struct ccw_device *cdev)
if (IS_ERR(device))
return PTR_ERR(device);
+ /* allow new IO again */
+ device->stopped &= ~DASD_STOPPED_PM;
+ device->stopped &= ~DASD_UNRESUMED_PM;
+
dasd_schedule_device_bh(device);
if (device->block)
dasd_schedule_block_bh(device->block);
if (device->discipline->restore)
rc = device->discipline->restore(device);
+ if (rc)
+ /*
+ * if the resume failed for the DASD we put it in
+ * an UNRESUMED stop state
+ */
+ device->stopped |= DASD_UNRESUMED_PM;
dasd_put_device(device);
- return rc;
+ return 0;
}
EXPORT_SYMBOL_GPL(dasd_generic_restore_device);
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index 1c28ec3e4cc..f8b1f04f26b 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -3243,9 +3243,6 @@ int dasd_eckd_restore_device(struct dasd_device *device)
int is_known, rc;
struct dasd_uid temp_uid;
- /* allow new IO again */
- device->stopped &= ~DASD_STOPPED_PM;
-
private = (struct dasd_eckd_private *) device->private;
/* Read Configuration Data */
@@ -3295,12 +3292,7 @@ int dasd_eckd_restore_device(struct dasd_device *device)
return 0;
out_err:
- /*
- * if the resume failed for the DASD we put it in
- * an UNRESUMED stop state
- */
- device->stopped |= DASD_UNRESUMED_PM;
- return 0;
+ return -1;
}
static struct ccw_driver dasd_eckd_driver = {
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index 04dc734805c..21639d6c996 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -20,10 +20,7 @@
#include <linux/interrupt.h>
#include <linux/err.h>
#include <linux/reboot.h>
-
#include <linux/slab.h>
-#include <linux/bootmem.h>
-
#include <asm/ccwdev.h>
#include <asm/cio.h>
#include <asm/io.h>
@@ -735,7 +732,7 @@ static int raw3215_pm_stop(struct ccw_device *cdev)
unsigned long flags;
/* Empty the output buffer, then prevent new I/O. */
- raw = cdev->dev.driver_data;
+ raw = dev_get_drvdata(&cdev->dev);
spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
raw3215_make_room(raw, RAW3215_BUFFER_SIZE);
raw->flags |= RAW3215_FROZEN;
@@ -749,7 +746,7 @@ static int raw3215_pm_start(struct ccw_device *cdev)
unsigned long flags;
/* Allow I/O again and flush output buffer. */
- raw = cdev->dev.driver_data;
+ raw = dev_get_drvdata(&cdev->dev);
spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
raw->flags &= ~RAW3215_FROZEN;
raw->flags |= RAW3215_FLUSHING;
@@ -883,7 +880,7 @@ static int __init con3215_init(void)
raw3215_freelist = NULL;
spin_lock_init(&raw3215_freelist_lock);
for (i = 0; i < NR_3215_REQ; i++) {
- req = (struct raw3215_req *) alloc_bootmem_low(sizeof(struct raw3215_req));
+ req = kzalloc(sizeof(struct raw3215_req), GFP_KERNEL | GFP_DMA);
req->next = raw3215_freelist;
raw3215_freelist = req;
}
@@ -893,10 +890,9 @@ static int __init con3215_init(void)
return -ENODEV;
raw3215[0] = raw = (struct raw3215_info *)
- alloc_bootmem_low(sizeof(struct raw3215_info));
- memset(raw, 0, sizeof(struct raw3215_info));
- raw->buffer = (char *) alloc_bootmem_low(RAW3215_BUFFER_SIZE);
- raw->inbuf = (char *) alloc_bootmem_low(RAW3215_INBUF_SIZE);
+ kzalloc(sizeof(struct raw3215_info), GFP_KERNEL | GFP_DMA);
+ raw->buffer = kzalloc(RAW3215_BUFFER_SIZE, GFP_KERNEL | GFP_DMA);
+ raw->inbuf = kzalloc(RAW3215_INBUF_SIZE, GFP_KERNEL | GFP_DMA);
raw->cdev = cdev;
dev_set_drvdata(&cdev->dev, raw);
cdev->handler = raw3215_irq;
@@ -906,9 +902,9 @@ static int __init con3215_init(void)
/* Request the console irq */
if (raw3215_startup(raw) != 0) {
- free_bootmem((unsigned long) raw->inbuf, RAW3215_INBUF_SIZE);
- free_bootmem((unsigned long) raw->buffer, RAW3215_BUFFER_SIZE);
- free_bootmem((unsigned long) raw, sizeof(struct raw3215_info));
+ kfree(raw->inbuf);
+ kfree(raw->buffer);
+ kfree(raw);
raw3215[0] = NULL;
return -ENODEV;
}
diff --git a/drivers/s390/char/con3270.c b/drivers/s390/char/con3270.c
index 44d02e371c0..bb838bdf829 100644
--- a/drivers/s390/char/con3270.c
+++ b/drivers/s390/char/con3270.c
@@ -7,7 +7,6 @@
* Copyright IBM Corp. 2003, 2009
*/
-#include <linux/bootmem.h>
#include <linux/console.h>
#include <linux/init.h>
#include <linux/interrupt.h>
@@ -600,16 +599,14 @@ con3270_init(void)
if (IS_ERR(rp))
return PTR_ERR(rp);
- condev = (struct con3270 *) alloc_bootmem_low(sizeof(struct con3270));
- memset(condev, 0, sizeof(struct con3270));
+ condev = kzalloc(sizeof(struct con3270), GFP_KERNEL | GFP_DMA);
condev->view.dev = rp;
- condev->read = raw3270_request_alloc_bootmem(0);
+ condev->read = raw3270_request_alloc(0);
condev->read->callback = con3270_read_callback;
condev->read->callback_data = condev;
- condev->write =
- raw3270_request_alloc_bootmem(CON3270_OUTPUT_BUFFER_SIZE);
- condev->kreset = raw3270_request_alloc_bootmem(1);
+ condev->write = raw3270_request_alloc(CON3270_OUTPUT_BUFFER_SIZE);
+ condev->kreset = raw3270_request_alloc(1);
INIT_LIST_HEAD(&condev->lines);
INIT_LIST_HEAD(&condev->update);
@@ -623,7 +620,7 @@ con3270_init(void)
INIT_LIST_HEAD(&condev->freemem);
for (i = 0; i < CON3270_STRING_PAGES; i++) {
- cbuf = (void *) alloc_bootmem_low_pages(PAGE_SIZE);
+ cbuf = (void *) get_zeroed_page(GFP_KERNEL | GFP_DMA);
add_string_memory(&condev->freemem, cbuf, PAGE_SIZE);
}
condev->cline = alloc_string(&condev->freemem, condev->view.cols);
diff --git a/drivers/s390/char/monreader.c b/drivers/s390/char/monreader.c
index 75a8831eebb..7892550d793 100644
--- a/drivers/s390/char/monreader.c
+++ b/drivers/s390/char/monreader.c
@@ -320,7 +320,7 @@ static int mon_open(struct inode *inode, struct file *filp)
goto out_path;
}
filp->private_data = monpriv;
- monreader_device->driver_data = monpriv;
+ dev_set_drvdata(&monreader_device, monpriv);
unlock_kernel();
return nonseekable_open(inode, filp);
@@ -463,7 +463,7 @@ static struct miscdevice mon_dev = {
*****************************************************************************/
static int monreader_freeze(struct device *dev)
{
- struct mon_private *monpriv = dev->driver_data;
+ struct mon_private *monpriv = dev_get_drvdata(&dev);
int rc;
if (!monpriv)
@@ -487,7 +487,7 @@ static int monreader_freeze(struct device *dev)
static int monreader_thaw(struct device *dev)
{
- struct mon_private *monpriv = dev->driver_data;
+ struct mon_private *monpriv = dev_get_drvdata(dev);
int rc;
if (!monpriv)
diff --git a/drivers/s390/char/raw3270.c b/drivers/s390/char/raw3270.c
index acab7b2dfe8..d6a022f55e9 100644
--- a/drivers/s390/char/raw3270.c
+++ b/drivers/s390/char/raw3270.c
@@ -7,7 +7,6 @@
* Copyright IBM Corp. 2003, 2009
*/
-#include <linux/bootmem.h>
#include <linux/module.h>
#include <linux/err.h>
#include <linux/init.h>
@@ -143,33 +142,6 @@ raw3270_request_alloc(size_t size)
return rq;
}
-#ifdef CONFIG_TN3270_CONSOLE
-/*
- * Allocate a new 3270 ccw request from bootmem. Only works very
- * early in the boot process. Only con3270.c should be using this.
- */
-struct raw3270_request __init *raw3270_request_alloc_bootmem(size_t size)
-{
- struct raw3270_request *rq;
-
- rq = alloc_bootmem_low(sizeof(struct raw3270));
-
- /* alloc output buffer. */
- if (size > 0)
- rq->buffer = alloc_bootmem_low(size);
- rq->size = size;
- INIT_LIST_HEAD(&rq->list);
-
- /*
- * Setup ccw.
- */
- rq->ccw.cda = __pa(rq->buffer);
- rq->ccw.flags = CCW_FLAG_SLI;
-
- return rq;
-}
-#endif
-
/*
* Free 3270 ccw request
*/
@@ -846,8 +818,8 @@ struct raw3270 __init *raw3270_setup_console(struct ccw_device *cdev)
char *ascebc;
int rc;
- rp = (struct raw3270 *) alloc_bootmem_low(sizeof(struct raw3270));
- ascebc = (char *) alloc_bootmem(256);
+ rp = kzalloc(sizeof(struct raw3270), GFP_KERNEL | GFP_DMA);
+ ascebc = kzalloc(256, GFP_KERNEL);
rc = raw3270_setup_device(cdev, rp, ascebc);
if (rc)
return ERR_PTR(rc);
@@ -1350,7 +1322,7 @@ static int raw3270_pm_stop(struct ccw_device *cdev)
struct raw3270_view *view;
unsigned long flags;
- rp = cdev->dev.driver_data;
+ rp = dev_get_drvdata(&cdev->dev);
if (!rp)
return 0;
spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
@@ -1376,7 +1348,7 @@ static int raw3270_pm_start(struct ccw_device *cdev)
struct raw3270 *rp;
unsigned long flags;
- rp = cdev->dev.driver_data;
+ rp = dev_get_drvdata(&cdev->dev);
if (!rp)
return 0;
spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
diff --git a/drivers/s390/char/sclp_con.c b/drivers/s390/char/sclp_con.c
index 336811a7767..ad698d30cb3 100644
--- a/drivers/s390/char/sclp_con.c
+++ b/drivers/s390/char/sclp_con.c
@@ -11,7 +11,6 @@
#include <linux/init.h>
#include <linux/timer.h>
#include <linux/jiffies.h>
-#include <linux/bootmem.h>
#include <linux/termios.h>
#include <linux/err.h>
#include <linux/reboot.h>
@@ -110,7 +109,7 @@ static void sclp_console_sync_queue(void)
spin_lock_irqsave(&sclp_con_lock, flags);
if (timer_pending(&sclp_con_timer))
- del_timer_sync(&sclp_con_timer);
+ del_timer(&sclp_con_timer);
while (sclp_con_queue_running) {
spin_unlock_irqrestore(&sclp_con_lock, flags);
sclp_sync_wait();
@@ -298,8 +297,8 @@ sclp_console_init(void)
/* Allocate pages for output buffering */
INIT_LIST_HEAD(&sclp_con_pages);
for (i = 0; i < MAX_CONSOLE_PAGES; i++) {
- page = alloc_bootmem_low_pages(PAGE_SIZE);
- list_add_tail((struct list_head *) page, &sclp_con_pages);
+ page = (void *) get_zeroed_page(GFP_KERNEL | GFP_DMA);
+ list_add_tail(page, &sclp_con_pages);
}
INIT_LIST_HEAD(&sclp_con_outqueue);
spin_lock_init(&sclp_con_lock);
diff --git a/drivers/s390/char/sclp_vt220.c b/drivers/s390/char/sclp_vt220.c
index 5518e24946a..178724f2a4c 100644
--- a/drivers/s390/char/sclp_vt220.c
+++ b/drivers/s390/char/sclp_vt220.c
@@ -20,7 +20,6 @@
#include <linux/major.h>
#include <linux/console.h>
#include <linux/kdev_t.h>
-#include <linux/bootmem.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/reboot.h>
@@ -601,10 +600,7 @@ static void __init __sclp_vt220_free_pages(void)
list_for_each_safe(page, p, &sclp_vt220_empty) {
list_del(page);
- if (slab_is_available())
- free_page((unsigned long) page);
- else
- free_bootmem((unsigned long) page, PAGE_SIZE);
+ free_page((unsigned long) page);
}
}
@@ -640,16 +636,12 @@ static int __init __sclp_vt220_init(int num_pages)
sclp_vt220_flush_later = 0;
/* Allocate pages for output buffering */
+ rc = -ENOMEM;
for (i = 0; i < num_pages; i++) {
- if (slab_is_available())
- page = (void *) get_zeroed_page(GFP_KERNEL | GFP_DMA);
- else
- page = alloc_bootmem_low_pages(PAGE_SIZE);
- if (!page) {
- rc = -ENOMEM;
+ page = (void *) get_zeroed_page(GFP_KERNEL | GFP_DMA);
+ if (!page)
goto out;
- }
- list_add_tail((struct list_head *) page, &sclp_vt220_empty);
+ list_add_tail(page, &sclp_vt220_empty);
}
rc = sclp_register(&sclp_vt220_register);
out:
diff --git a/drivers/s390/char/tape_core.c b/drivers/s390/char/tape_core.c
index 595aa04cfd0..1d420d94759 100644
--- a/drivers/s390/char/tape_core.c
+++ b/drivers/s390/char/tape_core.c
@@ -396,7 +396,7 @@ int tape_generic_pm_suspend(struct ccw_device *cdev)
{
struct tape_device *device;
- device = cdev->dev.driver_data;
+ device = dev_get_drvdata(&cdev->dev);
if (!device) {
return -ENODEV;
}
diff --git a/drivers/s390/char/vmlogrdr.c b/drivers/s390/char/vmlogrdr.c
index 411cfa3c771..c20a4fe6da5 100644
--- a/drivers/s390/char/vmlogrdr.c
+++ b/drivers/s390/char/vmlogrdr.c
@@ -663,7 +663,7 @@ static struct attribute *vmlogrdr_attrs[] = {
static int vmlogrdr_pm_prepare(struct device *dev)
{
int rc;
- struct vmlogrdr_priv_t *priv = dev->driver_data;
+ struct vmlogrdr_priv_t *priv = dev_get_drvdata(dev);
rc = 0;
if (priv) {
@@ -753,7 +753,7 @@ static int vmlogrdr_register_device(struct vmlogrdr_priv_t *priv)
dev->bus = &iucv_bus;
dev->parent = iucv_root;
dev->driver = &vmlogrdr_driver;
- dev->driver_data = priv;
+ dev_set_drvdata(dev, priv);
/*
* The release function could be called after the
* module has been unloaded. It's _only_ task is to
diff --git a/drivers/s390/char/vmur.c b/drivers/s390/char/vmur.c
index 7d9e67cb647..31b902e94f7 100644
--- a/drivers/s390/char/vmur.c
+++ b/drivers/s390/char/vmur.c
@@ -170,7 +170,7 @@ static void urdev_put(struct urdev *urd)
*/
static int ur_pm_suspend(struct ccw_device *cdev)
{
- struct urdev *urd = cdev->dev.driver_data;
+ struct urdev *urd = dev_get_drvdata(&cdev->dev);
TRACE("ur_pm_suspend: cdev=%p\n", cdev);
if (urd->open_flag) {
diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h
index 13bcb811438..b1241f8fae8 100644
--- a/drivers/s390/cio/qdio.h
+++ b/drivers/s390/cio/qdio.h
@@ -351,15 +351,6 @@ static inline unsigned long long get_usecs(void)
((bufnr - dec) & QDIO_MAX_BUFFERS_MASK)
/* prototypes for thin interrupt */
-void qdio_sync_after_thinint(struct qdio_q *q);
-int get_buf_state(struct qdio_q *q, unsigned int bufnr, unsigned char *state,
- int auto_ack);
-void qdio_check_outbound_after_thinint(struct qdio_q *q);
-int qdio_inbound_q_moved(struct qdio_q *q);
-void qdio_kick_handler(struct qdio_q *q);
-void qdio_stop_polling(struct qdio_q *q);
-int qdio_siga_sync_q(struct qdio_q *q);
-
void qdio_setup_thinint(struct qdio_irq *irq_ptr);
int qdio_establish_thinint(struct qdio_irq *irq_ptr);
void qdio_shutdown_thinint(struct qdio_irq *irq_ptr);
@@ -392,4 +383,6 @@ void qdio_setup_destroy_sysfs(struct ccw_device *cdev);
int qdio_setup_init(void);
void qdio_setup_exit(void);
+int debug_get_buf_state(struct qdio_q *q, unsigned int bufnr,
+ unsigned char *state);
#endif /* _CIO_QDIO_H */
diff --git a/drivers/s390/cio/qdio_debug.c b/drivers/s390/cio/qdio_debug.c
index e3434b34f86..b8626d4df11 100644
--- a/drivers/s390/cio/qdio_debug.c
+++ b/drivers/s390/cio/qdio_debug.c
@@ -70,9 +70,8 @@ static int qstat_show(struct seq_file *m, void *v)
seq_printf(m, "slsb buffer states:\n");
seq_printf(m, "|0 |8 |16 |24 |32 |40 |48 |56 63|\n");
- qdio_siga_sync_q(q);
for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; i++) {
- get_buf_state(q, i, &state, 0);
+ debug_get_buf_state(q, i, &state);
switch (state) {
case SLSB_P_INPUT_NOT_INIT:
case SLSB_P_OUTPUT_NOT_INIT:
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index d79cf5bf0e6..0038750ad94 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -231,8 +231,8 @@ static inline int get_buf_states(struct qdio_q *q, unsigned int bufnr,
return i;
}
-inline int get_buf_state(struct qdio_q *q, unsigned int bufnr,
- unsigned char *state, int auto_ack)
+static inline int get_buf_state(struct qdio_q *q, unsigned int bufnr,
+ unsigned char *state, int auto_ack)
{
return get_buf_states(q, bufnr, state, 1, auto_ack);
}
@@ -276,7 +276,7 @@ void qdio_init_buf_states(struct qdio_irq *irq_ptr)
QDIO_MAX_BUFFERS_PER_Q);
}
-static int qdio_siga_sync(struct qdio_q *q, unsigned int output,
+static inline int qdio_siga_sync(struct qdio_q *q, unsigned int output,
unsigned int input)
{
int cc;
@@ -293,7 +293,7 @@ static int qdio_siga_sync(struct qdio_q *q, unsigned int output,
return cc;
}
-inline int qdio_siga_sync_q(struct qdio_q *q)
+static inline int qdio_siga_sync_q(struct qdio_q *q)
{
if (q->is_input_q)
return qdio_siga_sync(q, 0, q->mask);
@@ -358,8 +358,7 @@ static inline int qdio_siga_input(struct qdio_q *q)
return cc;
}
-/* called from thinint inbound handler */
-void qdio_sync_after_thinint(struct qdio_q *q)
+static inline void qdio_sync_after_thinint(struct qdio_q *q)
{
if (pci_out_supported(q)) {
if (need_siga_sync_thinint(q))
@@ -370,7 +369,14 @@ void qdio_sync_after_thinint(struct qdio_q *q)
qdio_siga_sync_q(q);
}
-inline void qdio_stop_polling(struct qdio_q *q)
+int debug_get_buf_state(struct qdio_q *q, unsigned int bufnr,
+ unsigned char *state)
+{
+ qdio_siga_sync_q(q);
+ return get_buf_states(q, bufnr, state, 1, 0);
+}
+
+static inline void qdio_stop_polling(struct qdio_q *q)
{
if (!q->u.in.polling)
return;
@@ -449,13 +455,6 @@ static inline void inbound_primed(struct qdio_q *q, int count)
count--;
if (!count)
return;
-
- /*
- * Need to change all PRIMED buffers to NOT_INIT, otherwise
- * we're loosing initiative in the thinint code.
- */
- set_buf_states(q, q->first_to_check, SLSB_P_INPUT_NOT_INIT,
- count);
}
static int get_inbound_buffer_frontier(struct qdio_q *q)
@@ -470,19 +469,13 @@ static int get_inbound_buffer_frontier(struct qdio_q *q)
count = min(atomic_read(&q->nr_buf_used), QDIO_MAX_BUFFERS_MASK);
stop = add_buf(q->first_to_check, count);
- /*
- * No siga sync here, as a PCI or we after a thin interrupt
- * will sync the queues.
- */
-
- /* need to set count to 1 for non-qebsm */
- if (!is_qebsm(q))
- count = 1;
-
-check_next:
if (q->first_to_check == stop)
goto out;
+ /*
+ * No siga sync here, as a PCI or we after a thin interrupt
+ * already sync'ed the queues.
+ */
count = get_buf_states(q, q->first_to_check, &state, count, 1);
if (!count)
goto out;
@@ -490,14 +483,9 @@ check_next:
switch (state) {
case SLSB_P_INPUT_PRIMED:
inbound_primed(q, count);
- /*
- * No siga-sync needed for non-qebsm here, as the inbound queue
- * will be synced on the next siga-r, resp.
- * tiqdio_is_inbound_q_done will do the siga-sync.
- */
q->first_to_check = add_buf(q->first_to_check, count);
atomic_sub(count, &q->nr_buf_used);
- goto check_next;
+ break;
case SLSB_P_INPUT_ERROR:
announce_buffer_error(q, count);
/* process the buffer, the upper layer will take care of it */
@@ -516,7 +504,7 @@ out:
return q->first_to_check;
}
-int qdio_inbound_q_moved(struct qdio_q *q)
+static int qdio_inbound_q_moved(struct qdio_q *q)
{
int bufnr;
@@ -524,35 +512,32 @@ int qdio_inbound_q_moved(struct qdio_q *q)
if ((bufnr != q->last_move) || q->qdio_error) {
q->last_move = bufnr;
- if (!need_siga_sync(q) && !pci_out_supported(q))
+ if (!is_thinint_irq(q->irq_ptr) && !MACHINE_IS_VM)
q->u.in.timestamp = get_usecs();
-
- DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "in moved");
return 1;
} else
return 0;
}
-static int qdio_inbound_q_done(struct qdio_q *q)
+static inline int qdio_inbound_q_done(struct qdio_q *q)
{
unsigned char state = 0;
if (!atomic_read(&q->nr_buf_used))
return 1;
- /*
- * We need that one for synchronization with the adapter, as it
- * does a kind of PCI avoidance.
- */
qdio_siga_sync_q(q);
-
get_buf_state(q, q->first_to_check, &state, 0);
+
if (state == SLSB_P_INPUT_PRIMED)
- /* we got something to do */
+ /* more work coming */
return 0;
- /* on VM, we don't poll, so the q is always done here */
- if (need_siga_sync(q) || pci_out_supported(q))
+ if (is_thinint_irq(q->irq_ptr))
+ return 1;
+
+ /* don't poll under z/VM */
+ if (MACHINE_IS_VM)
return 1;
/*
@@ -563,14 +548,11 @@ static int qdio_inbound_q_done(struct qdio_q *q)
DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "in done:%3d",
q->first_to_check);
return 1;
- } else {
- DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "in notd:%3d",
- q->first_to_check);
+ } else
return 0;
- }
}
-void qdio_kick_handler(struct qdio_q *q)
+static void qdio_kick_handler(struct qdio_q *q)
{
int start = q->first_to_kick;
int end = q->first_to_check;
@@ -619,7 +601,6 @@ again:
goto again;
}
-/* inbound tasklet */
void qdio_inbound_processing(unsigned long data)
{
struct qdio_q *q = (struct qdio_q *)data;
@@ -642,11 +623,6 @@ static int get_outbound_buffer_frontier(struct qdio_q *q)
count = min(atomic_read(&q->nr_buf_used), QDIO_MAX_BUFFERS_MASK);
stop = add_buf(q->first_to_check, count);
- /* need to set count to 1 for non-qebsm */
- if (!is_qebsm(q))
- count = 1;
-
-check_next:
if (q->first_to_check == stop)
return q->first_to_check;
@@ -661,13 +637,7 @@ check_next:
atomic_sub(count, &q->nr_buf_used);
q->first_to_check = add_buf(q->first_to_check, count);
- /*
- * We fetch all buffer states at once. get_buf_states may
- * return count < stop. For QEBSM we do not loop.
- */
- if (is_qebsm(q))
- break;
- goto check_next;
+ break;
case SLSB_P_OUTPUT_ERROR:
announce_buffer_error(q, count);
/* process the buffer, the upper layer will take care of it */
@@ -797,8 +767,7 @@ void qdio_outbound_timer(unsigned long data)
tasklet_schedule(&q->tasklet);
}
-/* called from thinint inbound tasklet */
-void qdio_check_outbound_after_thinint(struct qdio_q *q)
+static inline void qdio_check_outbound_after_thinint(struct qdio_q *q)
{
struct qdio_q *out;
int i;
@@ -811,6 +780,46 @@ void qdio_check_outbound_after_thinint(struct qdio_q *q)
tasklet_schedule(&out->tasklet);
}
+static void __tiqdio_inbound_processing(struct qdio_q *q)
+{
+ qdio_perf_stat_inc(&perf_stats.thinint_inbound);
+ qdio_sync_after_thinint(q);
+
+ /*
+ * The interrupt could be caused by a PCI request. Check the
+ * PCI capable outbound queues.
+ */
+ qdio_check_outbound_after_thinint(q);
+
+ if (!qdio_inbound_q_moved(q))
+ return;
+
+ qdio_kick_handler(q);
+
+ if (!qdio_inbound_q_done(q)) {
+ qdio_perf_stat_inc(&perf_stats.thinint_inbound_loop);
+ if (likely(q->irq_ptr->state != QDIO_IRQ_STATE_STOPPED))
+ tasklet_schedule(&q->tasklet);
+ }
+
+ qdio_stop_polling(q);
+ /*
+ * We need to check again to not lose initiative after
+ * resetting the ACK state.
+ */
+ if (!qdio_inbound_q_done(q)) {
+ qdio_perf_stat_inc(&perf_stats.thinint_inbound_loop2);
+ if (likely(q->irq_ptr->state != QDIO_IRQ_STATE_STOPPED))
+ tasklet_schedule(&q->tasklet);
+ }
+}
+
+void tiqdio_inbound_processing(unsigned long data)
+{
+ struct qdio_q *q = (struct qdio_q *)data;
+ __tiqdio_inbound_processing(q);
+}
+
static inline void qdio_set_state(struct qdio_irq *irq_ptr,
enum qdio_irq_states state)
{
@@ -1488,18 +1497,13 @@ out:
* @count: how many buffers to process
*/
int do_QDIO(struct ccw_device *cdev, unsigned int callflags,
- int q_nr, int bufnr, int count)
+ int q_nr, unsigned int bufnr, unsigned int count)
{
struct qdio_irq *irq_ptr;
- if ((bufnr > QDIO_MAX_BUFFERS_PER_Q) ||
- (count > QDIO_MAX_BUFFERS_PER_Q) ||
- (q_nr >= QDIO_MAX_QUEUES_PER_IRQ))
+ if (bufnr >= QDIO_MAX_BUFFERS_PER_Q || count > QDIO_MAX_BUFFERS_PER_Q)
return -EINVAL;
- if (!count)
- return 0;
-
irq_ptr = cdev->private->qdio_data;
if (!irq_ptr)
return -ENODEV;
diff --git a/drivers/s390/cio/qdio_thinint.c b/drivers/s390/cio/qdio_thinint.c
index c655d011a78..981a77ea7ee 100644
--- a/drivers/s390/cio/qdio_thinint.c
+++ b/drivers/s390/cio/qdio_thinint.c
@@ -43,9 +43,6 @@ struct indicator_t {
};
static struct indicator_t *q_indicators;
-static void tiqdio_tasklet_fn(unsigned long data);
-static DECLARE_TASKLET(tiqdio_tasklet, tiqdio_tasklet_fn, 0);
-
static int css_qdio_omit_svs;
static inline unsigned long do_clear_global_summary(void)
@@ -103,11 +100,6 @@ void tiqdio_add_input_queues(struct qdio_irq *irq_ptr)
xchg(irq_ptr->dsci, 1);
}
-/*
- * we cannot stop the tiqdio tasklet here since it is for all
- * thinint qdio devices and it must run as long as there is a
- * thinint device left
- */
void tiqdio_remove_input_queues(struct qdio_irq *irq_ptr)
{
struct qdio_q *q;
@@ -126,79 +118,39 @@ void tiqdio_remove_input_queues(struct qdio_irq *irq_ptr)
}
}
-static inline int tiqdio_inbound_q_done(struct qdio_q *q)
-{
- unsigned char state = 0;
-
- if (!atomic_read(&q->nr_buf_used))
- return 1;
-
- qdio_siga_sync_q(q);
- get_buf_state(q, q->first_to_check, &state, 0);
-
- if (state == SLSB_P_INPUT_PRIMED)
- /* more work coming */
- return 0;
- return 1;
-}
-
static inline int shared_ind(struct qdio_irq *irq_ptr)
{
return irq_ptr->dsci == &q_indicators[TIQDIO_SHARED_IND].ind;
}
-static void __tiqdio_inbound_processing(struct qdio_q *q)
+/**
+ * tiqdio_thinint_handler - thin interrupt handler for qdio
+ * @ind: pointer to adapter local summary indicator
+ * @drv_data: NULL
+ */
+static void tiqdio_thinint_handler(void *ind, void *drv_data)
{
- qdio_perf_stat_inc(&perf_stats.thinint_inbound);
- qdio_sync_after_thinint(q);
+ struct qdio_q *q;
+
+ qdio_perf_stat_inc(&perf_stats.thin_int);
/*
- * Maybe we have work on our outbound queues... at least
- * we have to check the PCI capable queues.
+ * SVS only when needed: issue SVS to benefit from iqdio interrupt
+ * avoidance (SVS clears adapter interrupt suppression overwrite)
*/
- qdio_check_outbound_after_thinint(q);
-
- if (!qdio_inbound_q_moved(q))
- return;
-
- qdio_kick_handler(q);
-
- if (!tiqdio_inbound_q_done(q)) {
- qdio_perf_stat_inc(&perf_stats.thinint_inbound_loop);
- if (likely(q->irq_ptr->state != QDIO_IRQ_STATE_STOPPED))
- tasklet_schedule(&q->tasklet);
- }
+ if (!css_qdio_omit_svs)
+ do_clear_global_summary();
- qdio_stop_polling(q);
/*
- * We need to check again to not lose initiative after
- * resetting the ACK state.
+ * reset local summary indicator (tiqdio_alsi) to stop adapter
+ * interrupts for now
*/
- if (!tiqdio_inbound_q_done(q)) {
- qdio_perf_stat_inc(&perf_stats.thinint_inbound_loop2);
- if (likely(q->irq_ptr->state != QDIO_IRQ_STATE_STOPPED))
- tasklet_schedule(&q->tasklet);
- }
-}
-
-void tiqdio_inbound_processing(unsigned long data)
-{
- struct qdio_q *q = (struct qdio_q *)data;
-
- __tiqdio_inbound_processing(q);
-}
-
-/* check for work on all inbound thinint queues */
-static void tiqdio_tasklet_fn(unsigned long data)
-{
- struct qdio_q *q;
-
- qdio_perf_stat_inc(&perf_stats.tasklet_thinint);
-again:
+ xchg((u8 *)ind, 0);
/* protect tiq_list entries, only changed in activate or shutdown */
rcu_read_lock();
+ /* check for work on all inbound thinint queues */
list_for_each_entry_rcu(q, &tiq_list, entry)
/* only process queues from changed sets */
if (*q->irq_ptr->dsci) {
@@ -226,37 +178,6 @@ again:
if (*tiqdio_alsi)
xchg(&q_indicators[TIQDIO_SHARED_IND].ind, 1);
}
-
- /* check for more work */
- if (*tiqdio_alsi) {
- xchg(tiqdio_alsi, 0);
- qdio_perf_stat_inc(&perf_stats.tasklet_thinint_loop);
- goto again;
- }
-}
-
-/**
- * tiqdio_thinint_handler - thin interrupt handler for qdio
- * @ind: pointer to adapter local summary indicator
- * @drv_data: NULL
- */
-static void tiqdio_thinint_handler(void *ind, void *drv_data)
-{
- qdio_perf_stat_inc(&perf_stats.thin_int);
-
- /*
- * SVS only when needed: issue SVS to benefit from iqdio interrupt
- * avoidance (SVS clears adapter interrupt suppression overwrite)
- */
- if (!css_qdio_omit_svs)
- do_clear_global_summary();
-
- /*
- * reset local summary indicator (tiqdio_alsi) to stop adapter
- * interrupts for now, the tasklet will clean all dsci's
- */
- xchg((u8 *)ind, 0);
- tasklet_hi_schedule(&tiqdio_tasklet);
}
static int set_subchannel_ind(struct qdio_irq *irq_ptr, int reset)
@@ -376,5 +297,4 @@ void __exit tiqdio_unregister_thinints(void)
s390_unregister_adapter_interrupt(tiqdio_alsi, QDIO_AIRQ_ISC);
isc_unregister(QDIO_AIRQ_ISC);
}
- tasklet_kill(&tiqdio_tasklet);
}
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index 9c148406b98..727a809636d 100644
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -54,6 +54,12 @@ static int ap_poll_thread_start(void);
static void ap_poll_thread_stop(void);
static void ap_request_timeout(unsigned long);
static inline void ap_schedule_poll_timer(void);
+static int __ap_poll_device(struct ap_device *ap_dev, unsigned long *flags);
+static int ap_device_remove(struct device *dev);
+static int ap_device_probe(struct device *dev);
+static void ap_interrupt_handler(void *unused1, void *unused2);
+static void ap_reset(struct ap_device *ap_dev);
+static void ap_config_timeout(unsigned long ptr);
/*
* Module description.
@@ -101,6 +107,10 @@ static struct hrtimer ap_poll_timer;
* If z/VM change to 1500000 nanoseconds to adjust to z/VM polling.*/
static unsigned long long poll_timeout = 250000;
+/* Suspend flag */
+static int ap_suspend_flag;
+static struct bus_type ap_bus_type;
+
/**
* ap_using_interrupts() - Returns non-zero if interrupt support is
* available.
@@ -617,10 +627,79 @@ static int ap_uevent (struct device *dev, struct kobj_uevent_env *env)
return retval;
}
+static int ap_bus_suspend(struct device *dev, pm_message_t state)
+{
+ struct ap_device *ap_dev = to_ap_dev(dev);
+ unsigned long flags;
+
+ if (!ap_suspend_flag) {
+ ap_suspend_flag = 1;
+
+ /* Disable scanning for devices, thus we do not want to scan
+ * for them after removing.
+ */
+ del_timer_sync(&ap_config_timer);
+ if (ap_work_queue != NULL) {
+ destroy_workqueue(ap_work_queue);
+ ap_work_queue = NULL;
+ }
+ tasklet_disable(&ap_tasklet);
+ }
+ /* Poll on the device until all requests are finished. */
+ do {
+ flags = 0;
+ __ap_poll_device(ap_dev, &flags);
+ } while ((flags & 1) || (flags & 2));
+
+ ap_device_remove(dev);
+ return 0;
+}
+
+static int ap_bus_resume(struct device *dev)
+{
+ int rc = 0;
+ struct ap_device *ap_dev = to_ap_dev(dev);
+
+ if (ap_suspend_flag) {
+ ap_suspend_flag = 0;
+ if (!ap_interrupts_available())
+ ap_interrupt_indicator = NULL;
+ ap_device_probe(dev);
+ ap_reset(ap_dev);
+ setup_timer(&ap_dev->timeout, ap_request_timeout,
+ (unsigned long) ap_dev);
+ ap_scan_bus(NULL);
+ init_timer(&ap_config_timer);
+ ap_config_timer.function = ap_config_timeout;
+ ap_config_timer.data = 0;
+ ap_config_timer.expires = jiffies + ap_config_time * HZ;
+ add_timer(&ap_config_timer);
+ ap_work_queue = create_singlethread_workqueue("kapwork");
+ if (!ap_work_queue)
+ return -ENOMEM;
+ tasklet_enable(&ap_tasklet);
+ if (!ap_using_interrupts())
+ ap_schedule_poll_timer();
+ else
+ tasklet_schedule(&ap_tasklet);
+ if (ap_thread_flag)
+ rc = ap_poll_thread_start();
+ } else {
+ ap_device_probe(dev);
+ ap_reset(ap_dev);
+ setup_timer(&ap_dev->timeout, ap_request_timeout,
+ (unsigned long) ap_dev);
+ }
+
+ return rc;
+}
+
static struct bus_type ap_bus_type = {
.name = "ap",
.match = &ap_bus_match,
.uevent = &ap_uevent,
+ .suspend = ap_bus_suspend,
+ .resume = ap_bus_resume
};
static int ap_device_probe(struct device *dev)
@@ -1066,7 +1145,7 @@ ap_config_timeout(unsigned long ptr)
*/
static inline void ap_schedule_poll_timer(void)
{
- if (ap_using_interrupts())
+ if (ap_using_interrupts() || ap_suspend_flag)
return;
if (hrtimer_is_queued(&ap_poll_timer))
return;
@@ -1384,6 +1463,8 @@ static int ap_poll_thread(void *data)
set_user_nice(current, 19);
while (1) {
+ if (ap_suspend_flag)
+ return 0;
if (need_resched()) {
schedule();
continue;
@@ -1414,7 +1495,7 @@ static int ap_poll_thread_start(void)
{
int rc;
- if (ap_using_interrupts())
+ if (ap_using_interrupts() || ap_suspend_flag)
return 0;
mutex_lock(&ap_poll_thread_mutex);
if (!ap_poll_kthread) {
diff --git a/drivers/s390/net/netiucv.c b/drivers/s390/net/netiucv.c
index 52574ce797b..8c36eafcfbf 100644
--- a/drivers/s390/net/netiucv.c
+++ b/drivers/s390/net/netiucv.c
@@ -1307,7 +1307,7 @@ static void netiucv_pm_complete(struct device *dev)
*/
static int netiucv_pm_freeze(struct device *dev)
{
- struct netiucv_priv *priv = dev->driver_data;
+ struct netiucv_priv *priv = dev_get_drvdata(dev);
struct net_device *ndev = NULL;
int rc = 0;
@@ -1331,7 +1331,7 @@ out:
*/
static int netiucv_pm_restore_thaw(struct device *dev)
{
- struct netiucv_priv *priv = dev->driver_data;
+ struct netiucv_priv *priv = dev_get_drvdata(dev);
struct net_device *ndev = NULL;
int rc = 0;