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-rw-r--r--drivers/s390/char/con3215.c8
-rw-r--r--drivers/s390/char/con3270.c13
-rw-r--r--drivers/s390/char/raw3270.c26
-rw-r--r--drivers/s390/char/raw3270.h3
-rw-r--r--drivers/s390/char/sclp_early.c31
-rw-r--r--drivers/s390/cio/airq.c66
-rw-r--r--drivers/s390/cio/chsc_sch.c3
-rw-r--r--drivers/s390/cio/cio.c4
-rw-r--r--drivers/s390/cio/device.c52
-rw-r--r--drivers/s390/net/qeth_core_main.c4
10 files changed, 146 insertions, 64 deletions
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index eb5d22795c47..5af7f0bd6125 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -922,7 +922,7 @@ static int __init con3215_init(void)
raw3215_freelist = req;
}
- cdev = ccw_device_probe_console();
+ cdev = ccw_device_create_console(&raw3215_ccw_driver);
if (IS_ERR(cdev))
return -ENODEV;
@@ -932,6 +932,12 @@ static int __init con3215_init(void)
cdev->handler = raw3215_irq;
raw->flags |= RAW3215_FIXED;
+ if (ccw_device_enable_console(cdev)) {
+ ccw_device_destroy_console(cdev);
+ raw3215_free_info(raw);
+ raw3215[0] = NULL;
+ return -ENODEV;
+ }
/* Request the console irq */
if (raw3215_startup(raw) != 0) {
diff --git a/drivers/s390/char/con3270.c b/drivers/s390/char/con3270.c
index 699fd3e363df..75ffe9980c3e 100644
--- a/drivers/s390/char/con3270.c
+++ b/drivers/s390/char/con3270.c
@@ -7,6 +7,7 @@
* Copyright IBM Corp. 2003, 2009
*/
+#include <linux/module.h>
#include <linux/console.h>
#include <linux/init.h>
#include <linux/interrupt.h>
@@ -30,6 +31,9 @@
static struct raw3270_fn con3270_fn;
+static bool auto_update = 1;
+module_param(auto_update, bool, 0);
+
/*
* Main 3270 console view data structure.
*/
@@ -204,6 +208,8 @@ con3270_update(struct con3270 *cp)
struct string *s, *n;
int rc;
+ if (!auto_update && !raw3270_view_active(&cp->view))
+ return;
if (cp->view.dev)
raw3270_activate_view(&cp->view);
@@ -529,6 +535,7 @@ con3270_flush(void)
if (!cp->view.dev)
return;
raw3270_pm_unfreeze(&cp->view);
+ raw3270_activate_view(&cp->view);
spin_lock_irqsave(&cp->view.lock, flags);
con3270_wait_write(cp);
cp->nr_up = 0;
@@ -576,7 +583,6 @@ static struct console con3270 = {
static int __init
con3270_init(void)
{
- struct ccw_device *cdev;
struct raw3270 *rp;
void *cbuf;
int i;
@@ -591,10 +597,7 @@ con3270_init(void)
cpcmd("TERM AUTOCR OFF", NULL, 0, NULL);
}
- cdev = ccw_device_probe_console();
- if (IS_ERR(cdev))
- return -ENODEV;
- rp = raw3270_setup_console(cdev);
+ rp = raw3270_setup_console();
if (IS_ERR(rp))
return PTR_ERR(rp);
diff --git a/drivers/s390/char/raw3270.c b/drivers/s390/char/raw3270.c
index 2cdec21e8924..9f849df4381e 100644
--- a/drivers/s390/char/raw3270.c
+++ b/drivers/s390/char/raw3270.c
@@ -276,6 +276,15 @@ __raw3270_start(struct raw3270 *rp, struct raw3270_view *view,
}
int
+raw3270_view_active(struct raw3270_view *view)
+{
+ struct raw3270 *rp = view->dev;
+
+ return rp && rp->view == view &&
+ !test_bit(RAW3270_FLAGS_FROZEN, &rp->flags);
+}
+
+int
raw3270_start(struct raw3270_view *view, struct raw3270_request *rq)
{
unsigned long flags;
@@ -776,22 +785,37 @@ raw3270_setup_device(struct ccw_device *cdev, struct raw3270 *rp, char *ascebc)
}
#ifdef CONFIG_TN3270_CONSOLE
+/* Tentative definition - see below for actual definition. */
+static struct ccw_driver raw3270_ccw_driver;
+
/*
* Setup 3270 device configured as console.
*/
-struct raw3270 __init *raw3270_setup_console(struct ccw_device *cdev)
+struct raw3270 __init *raw3270_setup_console(void)
{
+ struct ccw_device *cdev;
unsigned long flags;
struct raw3270 *rp;
char *ascebc;
int rc;
+ cdev = ccw_device_create_console(&raw3270_ccw_driver);
+ if (IS_ERR(cdev))
+ return ERR_CAST(cdev);
+
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);
set_bit(RAW3270_FLAGS_CONSOLE, &rp->flags);
+
+ rc = ccw_device_enable_console(cdev);
+ if (rc) {
+ ccw_device_destroy_console(cdev);
+ return ERR_PTR(rc);
+ }
+
spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
do {
__raw3270_reset_device(rp);
diff --git a/drivers/s390/char/raw3270.h b/drivers/s390/char/raw3270.h
index 7b73ff8c1bd7..e1e41c2861fb 100644
--- a/drivers/s390/char/raw3270.h
+++ b/drivers/s390/char/raw3270.h
@@ -173,6 +173,7 @@ int raw3270_start_locked(struct raw3270_view *, struct raw3270_request *);
int raw3270_start_irq(struct raw3270_view *, struct raw3270_request *);
int raw3270_reset(struct raw3270_view *);
struct raw3270_view *raw3270_view(struct raw3270_view *);
+int raw3270_view_active(struct raw3270_view *);
/* Reference count inliner for view structures. */
static inline void
@@ -190,7 +191,7 @@ raw3270_put_view(struct raw3270_view *view)
wake_up(&raw3270_wait_queue);
}
-struct raw3270 *raw3270_setup_console(struct ccw_device *cdev);
+struct raw3270 *raw3270_setup_console(void);
void raw3270_wait_cons_dev(struct raw3270 *);
/* Notifier for device addition/removal */
diff --git a/drivers/s390/char/sclp_early.c b/drivers/s390/char/sclp_early.c
index 82f2c389b4d1..14196ea0fdf3 100644
--- a/drivers/s390/char/sclp_early.c
+++ b/drivers/s390/char/sclp_early.c
@@ -20,7 +20,9 @@ struct read_info_sccb {
struct sccb_header header; /* 0-7 */
u16 rnmax; /* 8-9 */
u8 rnsize; /* 10 */
- u8 _reserved0[24 - 11]; /* 11-15 */
+ u8 _reserved0[16 - 11]; /* 11-15 */
+ u16 ncpurl; /* 16-17 */
+ u8 _reserved7[24 - 18]; /* 18-23 */
u8 loadparm[8]; /* 24-31 */
u8 _reserved1[48 - 32]; /* 32-47 */
u64 facilities; /* 48-55 */
@@ -32,13 +34,16 @@ struct read_info_sccb {
u8 _reserved4[100 - 92]; /* 92-99 */
u32 rnsize2; /* 100-103 */
u64 rnmax2; /* 104-111 */
- u8 _reserved5[4096 - 112]; /* 112-4095 */
+ u8 _reserved5[120 - 112]; /* 112-119 */
+ u16 hcpua; /* 120-121 */
+ u8 _reserved6[4096 - 122]; /* 122-4095 */
} __packed __aligned(PAGE_SIZE);
static char sccb_early[PAGE_SIZE] __aligned(PAGE_SIZE) __initdata;
static unsigned int sclp_con_has_vt220 __initdata;
static unsigned int sclp_con_has_linemode __initdata;
static unsigned long sclp_hsa_size;
+static unsigned int sclp_max_cpu;
static struct sclp_ipl_info sclp_ipl_info;
u64 sclp_facilities;
@@ -102,6 +107,15 @@ static void __init sclp_facilities_detect(struct read_info_sccb *sccb)
sclp_rzm = sccb->rnsize ? sccb->rnsize : sccb->rnsize2;
sclp_rzm <<= 20;
+ if (!sccb->hcpua) {
+ if (MACHINE_IS_VM)
+ sclp_max_cpu = 64;
+ else
+ sclp_max_cpu = sccb->ncpurl;
+ } else {
+ sclp_max_cpu = sccb->hcpua + 1;
+ }
+
/* Save IPL information */
sclp_ipl_info.is_valid = 1;
if (sccb->flags & 0x2)
@@ -129,6 +143,11 @@ unsigned long long sclp_get_rzm(void)
return sclp_rzm;
}
+unsigned int sclp_get_max_cpu(void)
+{
+ return sclp_max_cpu;
+}
+
/*
* This function will be called after sclp_facilities_detect(), which gets
* called from early.c code. The sclp_facilities_detect() function retrieves
@@ -184,9 +203,9 @@ static long __init sclp_hsa_size_init(struct sdias_sccb *sccb)
sccb_init_eq_size(sccb);
if (sclp_cmd_early(SCLP_CMDW_WRITE_EVENT_DATA, sccb))
return -EIO;
- if (sccb->evbuf.blk_cnt != 0)
- return (sccb->evbuf.blk_cnt - 1) * PAGE_SIZE;
- return 0;
+ if (sccb->evbuf.blk_cnt == 0)
+ return 0;
+ return (sccb->evbuf.blk_cnt - 1) * PAGE_SIZE;
}
static long __init sclp_hsa_copy_wait(struct sccb_header *sccb)
@@ -195,6 +214,8 @@ static long __init sclp_hsa_copy_wait(struct sccb_header *sccb)
sccb->length = PAGE_SIZE;
if (sclp_cmd_early(SCLP_CMDW_READ_EVENT_DATA, sccb))
return -EIO;
+ if (((struct sdias_sccb *) sccb)->evbuf.blk_cnt == 0)
+ return 0;
return (((struct sdias_sccb *) sccb)->evbuf.blk_cnt - 1) * PAGE_SIZE;
}
diff --git a/drivers/s390/cio/airq.c b/drivers/s390/cio/airq.c
index f055df0b167f..445564c790f6 100644
--- a/drivers/s390/cio/airq.c
+++ b/drivers/s390/cio/airq.c
@@ -186,55 +186,71 @@ void airq_iv_release(struct airq_iv *iv)
EXPORT_SYMBOL(airq_iv_release);
/**
- * airq_iv_alloc_bit - allocate an irq bit from an interrupt vector
+ * airq_iv_alloc - allocate irq bits from an interrupt vector
* @iv: pointer to an interrupt vector structure
+ * @num: number of consecutive irq bits to allocate
*
- * Returns the bit number of the allocated irq, or -1UL if no bit
- * is available or the AIRQ_IV_ALLOC flag has not been specified
+ * Returns the bit number of the first irq in the allocated block of irqs,
+ * or -1UL if no bit is available or the AIRQ_IV_ALLOC flag has not been
+ * specified
*/
-unsigned long airq_iv_alloc_bit(struct airq_iv *iv)
+unsigned long airq_iv_alloc(struct airq_iv *iv, unsigned long num)
{
- unsigned long bit;
+ unsigned long bit, i;
- if (!iv->avail)
+ if (!iv->avail || num == 0)
return -1UL;
spin_lock(&iv->lock);
bit = find_first_bit_inv(iv->avail, iv->bits);
- if (bit < iv->bits) {
- clear_bit_inv(bit, iv->avail);
- if (bit >= iv->end)
- iv->end = bit + 1;
- } else
+ while (bit + num <= iv->bits) {
+ for (i = 1; i < num; i++)
+ if (!test_bit_inv(bit + i, iv->avail))
+ break;
+ if (i >= num) {
+ /* Found a suitable block of irqs */
+ for (i = 0; i < num; i++)
+ clear_bit_inv(bit + i, iv->avail);
+ if (bit + num >= iv->end)
+ iv->end = bit + num + 1;
+ break;
+ }
+ bit = find_next_bit_inv(iv->avail, iv->bits, bit + i + 1);
+ }
+ if (bit + num > iv->bits)
bit = -1UL;
spin_unlock(&iv->lock);
return bit;
}
-EXPORT_SYMBOL(airq_iv_alloc_bit);
+EXPORT_SYMBOL(airq_iv_alloc);
/**
- * airq_iv_free_bit - free an irq bit of an interrupt vector
+ * airq_iv_free - free irq bits of an interrupt vector
* @iv: pointer to interrupt vector structure
- * @bit: number of the irq bit to free
+ * @bit: number of the first irq bit to free
+ * @num: number of consecutive irq bits to free
*/
-void airq_iv_free_bit(struct airq_iv *iv, unsigned long bit)
+void airq_iv_free(struct airq_iv *iv, unsigned long bit, unsigned long num)
{
- if (!iv->avail)
+ unsigned long i;
+
+ if (!iv->avail || num == 0)
return;
spin_lock(&iv->lock);
- /* Clear (possibly left over) interrupt bit */
- clear_bit_inv(bit, iv->vector);
- /* Make the bit position available again */
- set_bit_inv(bit, iv->avail);
- if (bit == iv->end - 1) {
+ for (i = 0; i < num; i++) {
+ /* Clear (possibly left over) interrupt bit */
+ clear_bit_inv(bit + i, iv->vector);
+ /* Make the bit positions available again */
+ set_bit_inv(bit + i, iv->avail);
+ }
+ if (bit + num >= iv->end) {
/* Find new end of bit-field */
- while (--iv->end > 0)
- if (!test_bit_inv(iv->end - 1, iv->avail))
- break;
+ while (iv->end > 0 && !test_bit_inv(iv->end - 1, iv->avail))
+ iv->end--;
}
spin_unlock(&iv->lock);
}
-EXPORT_SYMBOL(airq_iv_free_bit);
+EXPORT_SYMBOL(airq_iv_free);
/**
* airq_iv_scan - scan interrupt vector for non-zero bits
diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c
index 7b29d0be0ca3..1d3661af7bd8 100644
--- a/drivers/s390/cio/chsc_sch.c
+++ b/drivers/s390/cio/chsc_sch.c
@@ -173,8 +173,7 @@ static struct css_driver chsc_subchannel_driver = {
static int __init chsc_init_dbfs(void)
{
- chsc_debug_msg_id = debug_register("chsc_msg", 16, 1,
- 16 * sizeof(long));
+ chsc_debug_msg_id = debug_register("chsc_msg", 8, 1, 4 * sizeof(long));
if (!chsc_debug_msg_id)
goto out;
debug_register_view(chsc_debug_msg_id, &debug_sprintf_view);
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index 8ee88c4ebd83..97c48b38d67d 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -54,7 +54,7 @@ debug_info_t *cio_debug_crw_id;
*/
static int __init cio_debug_init(void)
{
- cio_debug_msg_id = debug_register("cio_msg", 16, 1, 16 * sizeof(long));
+ cio_debug_msg_id = debug_register("cio_msg", 16, 1, 11 * sizeof(long));
if (!cio_debug_msg_id)
goto out_unregister;
debug_register_view(cio_debug_msg_id, &debug_sprintf_view);
@@ -64,7 +64,7 @@ static int __init cio_debug_init(void)
goto out_unregister;
debug_register_view(cio_debug_trace_id, &debug_hex_ascii_view);
debug_set_level(cio_debug_trace_id, 2);
- cio_debug_crw_id = debug_register("cio_crw", 16, 1, 16 * sizeof(long));
+ cio_debug_crw_id = debug_register("cio_crw", 8, 1, 8 * sizeof(long));
if (!cio_debug_crw_id)
goto out_unregister;
debug_register_view(cio_debug_crw_id, &debug_sprintf_view);
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index e9d783563cbb..d8d9b5b5cc56 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -1571,12 +1571,27 @@ out:
return rc;
}
+static void ccw_device_set_int_class(struct ccw_device *cdev)
+{
+ struct ccw_driver *cdrv = cdev->drv;
+
+ /* Note: we interpret class 0 in this context as an uninitialized
+ * field since it translates to a non-I/O interrupt class. */
+ if (cdrv->int_class != 0)
+ cdev->private->int_class = cdrv->int_class;
+ else
+ cdev->private->int_class = IRQIO_CIO;
+}
+
#ifdef CONFIG_CCW_CONSOLE
-static int ccw_device_console_enable(struct ccw_device *cdev,
- struct subchannel *sch)
+int __init ccw_device_enable_console(struct ccw_device *cdev)
{
+ struct subchannel *sch = to_subchannel(cdev->dev.parent);
int rc;
+ if (!cdev->drv || !cdev->handler)
+ return -EINVAL;
+
io_subchannel_init_fields(sch);
rc = cio_commit_config(sch);
if (rc)
@@ -1609,12 +1624,11 @@ out_unlock:
return rc;
}
-struct ccw_device *ccw_device_probe_console(void)
+struct ccw_device * __init ccw_device_create_console(struct ccw_driver *drv)
{
struct io_subchannel_private *io_priv;
struct ccw_device *cdev;
struct subchannel *sch;
- int ret;
sch = cio_probe_console();
if (IS_ERR(sch))
@@ -1631,18 +1645,23 @@ struct ccw_device *ccw_device_probe_console(void)
kfree(io_priv);
return cdev;
}
+ cdev->drv = drv;
set_io_private(sch, io_priv);
- ret = ccw_device_console_enable(cdev, sch);
- if (ret) {
- set_io_private(sch, NULL);
- put_device(&sch->dev);
- put_device(&cdev->dev);
- kfree(io_priv);
- return ERR_PTR(ret);
- }
+ ccw_device_set_int_class(cdev);
return cdev;
}
+void __init ccw_device_destroy_console(struct ccw_device *cdev)
+{
+ struct subchannel *sch = to_subchannel(cdev->dev.parent);
+ struct io_subchannel_private *io_priv = to_io_private(sch);
+
+ set_io_private(sch, NULL);
+ put_device(&sch->dev);
+ put_device(&cdev->dev);
+ kfree(io_priv);
+}
+
/**
* ccw_device_wait_idle() - busy wait for device to become idle
* @cdev: ccw device
@@ -1726,15 +1745,8 @@ ccw_device_probe (struct device *dev)
int ret;
cdev->drv = cdrv; /* to let the driver call _set_online */
- /* Note: we interpret class 0 in this context as an uninitialized
- * field since it translates to a non-I/O interrupt class. */
- if (cdrv->int_class != 0)
- cdev->private->int_class = cdrv->int_class;
- else
- cdev->private->int_class = IRQIO_CIO;
-
+ ccw_device_set_int_class(cdev);
ret = cdrv->probe ? cdrv->probe(cdev) : -ENODEV;
-
if (ret) {
cdev->drv = NULL;
cdev->private->int_class = IRQIO_CIO;
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 795ed61a5496..a0aff2eb247c 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -33,8 +33,8 @@ struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS] = {
/* N P A M L V H */
[QETH_DBF_SETUP] = {"qeth_setup",
8, 1, 8, 5, &debug_hex_ascii_view, NULL},
- [QETH_DBF_MSG] = {"qeth_msg",
- 8, 1, 128, 3, &debug_sprintf_view, NULL},
+ [QETH_DBF_MSG] = {"qeth_msg", 8, 1, 11 * sizeof(long), 3,
+ &debug_sprintf_view, NULL},
[QETH_DBF_CTRL] = {"qeth_control",
8, 1, QETH_DBF_CTRL_LEN, 5, &debug_hex_ascii_view, NULL},
};
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 18:51:29 +0000