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-rw-r--r--drivers/tty/hvc/Kconfig14
-rw-r--r--drivers/tty/hvc/Makefile4
-rw-r--r--drivers/tty/hvc/hvc_console.c72
-rw-r--r--drivers/tty/hvc/hvc_console.h4
-rw-r--r--drivers/tty/hvc/hvc_irq.c2
-rw-r--r--drivers/tty/hvc/hvc_iseries.c1
-rw-r--r--drivers/tty/hvc/hvc_vio.c409
-rw-r--r--drivers/tty/hvc/hvc_xen.c2
-rw-r--r--drivers/tty/hvc/hvcs.c10
-rw-r--r--drivers/tty/hvc/hvsi.c131
-rw-r--r--drivers/tty/serial/cpm_uart/cpm_uart_core.c1
-rw-r--r--drivers/tty/serial/jsm/jsm.h3
-rw-r--r--drivers/tty/serial/jsm/jsm_driver.c20
-rw-r--r--drivers/tty/serial/jsm/jsm_neo.c2
-rw-r--r--drivers/tty/vt/consolemap.c2
-rw-r--r--drivers/tty/vt/keyboard.c3
-rw-r--r--drivers/tty/vt/selection.c4
-rw-r--r--drivers/tty/vt/vc_screen.c1
-rw-r--r--drivers/tty/vt/vt.c8
19 files changed, 508 insertions, 185 deletions
diff --git a/drivers/tty/hvc/Kconfig b/drivers/tty/hvc/Kconfig
index 6f2c980..4222035 100644
--- a/drivers/tty/hvc/Kconfig
+++ b/drivers/tty/hvc/Kconfig
@@ -19,6 +19,11 @@ config HVC_CONSOLE
console. This driver allows each pSeries partition to have a console
which is accessed via the HMC.
+config HVC_OLD_HVSI
+ bool "Old driver for pSeries serial port (/dev/hvsi*)"
+ depends on HVC_CONSOLE
+ default n
+
config HVC_ISERIES
bool "iSeries Hypervisor Virtual Console support"
depends on PPC_ISERIES
@@ -29,6 +34,15 @@ config HVC_ISERIES
help
iSeries machines support a hypervisor virtual console.
+config HVC_OPAL
+ bool "OPAL Console support"
+ depends on PPC_POWERNV
+ select HVC_DRIVER
+ select HVC_IRQ
+ default y
+ help
+ PowerNV machines running under OPAL need that driver to get a console
+
config HVC_RTAS
bool "IBM RTAS Console support"
depends on PPC_RTAS
diff --git a/drivers/tty/hvc/Makefile b/drivers/tty/hvc/Makefile
index 40a25d9..89abf40b 100644
--- a/drivers/tty/hvc/Makefile
+++ b/drivers/tty/hvc/Makefile
@@ -1,4 +1,6 @@
-obj-$(CONFIG_HVC_CONSOLE) += hvc_vio.o hvsi.o
+obj-$(CONFIG_HVC_CONSOLE) += hvc_vio.o hvsi_lib.o
+obj-$(CONFIG_HVC_OPAL) += hvc_opal.o hvsi_lib.o
+obj-$(CONFIG_HVC_OLD_HVSI) += hvsi.o
obj-$(CONFIG_HVC_ISERIES) += hvc_iseries.o
obj-$(CONFIG_HVC_RTAS) += hvc_rtas.o
obj-$(CONFIG_HVC_TILE) += hvc_tile.o
diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c
index aa84555..443547b 100644
--- a/drivers/tty/hvc/hvc_console.c
+++ b/drivers/tty/hvc/hvc_console.c
@@ -31,6 +31,7 @@
#include <linux/list.h>
#include <linux/module.h>
#include <linux/major.h>
+#include <linux/atomic.h>
#include <linux/sysrq.h>
#include <linux/tty.h>
#include <linux/tty_flip.h>
@@ -39,6 +40,7 @@
#include <linux/delay.h>
#include <linux/freezer.h>
#include <linux/slab.h>
+#include <linux/serial_core.h>
#include <asm/uaccess.h>
@@ -69,6 +71,9 @@ static struct task_struct *hvc_task;
/* Picks up late kicks after list walk but before schedule() */
static int hvc_kicked;
+/* hvc_init is triggered from hvc_alloc, i.e. only when actually used */
+static atomic_t hvc_needs_init __read_mostly = ATOMIC_INIT(-1);
+
static int hvc_init(void);
#ifdef CONFIG_MAGIC_SYSRQ
@@ -185,8 +190,8 @@ static struct tty_driver *hvc_console_device(struct console *c, int *index)
return hvc_driver;
}
-static int __init hvc_console_setup(struct console *co, char *options)
-{
+static int hvc_console_setup(struct console *co, char *options)
+{
if (co->index < 0 || co->index >= MAX_NR_HVC_CONSOLES)
return -ENODEV;
@@ -387,7 +392,7 @@ static void hvc_close(struct tty_struct *tty, struct file * filp)
* there is no buffered data otherwise sleeps on a wait queue
* waking periodically to check chars_in_buffer().
*/
- tty_wait_until_sent(tty, HVC_CLOSE_WAIT);
+ tty_wait_until_sent_from_close(tty, HVC_CLOSE_WAIT);
} else {
if (hp->count < 0)
printk(KERN_ERR "hvc_close %X: oops, count is %d\n",
@@ -747,6 +752,58 @@ static int khvcd(void *unused)
return 0;
}
+static int hvc_tiocmget(struct tty_struct *tty)
+{
+ struct hvc_struct *hp = tty->driver_data;
+
+ if (!hp || !hp->ops->tiocmget)
+ return -EINVAL;
+ return hp->ops->tiocmget(hp);
+}
+
+static int hvc_tiocmset(struct tty_struct *tty,
+ unsigned int set, unsigned int clear)
+{
+ struct hvc_struct *hp = tty->driver_data;
+
+ if (!hp || !hp->ops->tiocmset)
+ return -EINVAL;
+ return hp->ops->tiocmset(hp, set, clear);
+}
+
+#ifdef CONFIG_CONSOLE_POLL
+int hvc_poll_init(struct tty_driver *driver, int line, char *options)
+{
+ return 0;
+}
+
+static int hvc_poll_get_char(struct tty_driver *driver, int line)
+{
+ struct tty_struct *tty = driver->ttys[0];
+ struct hvc_struct *hp = tty->driver_data;
+ int n;
+ char ch;
+
+ n = hp->ops->get_chars(hp->vtermno, &ch, 1);
+
+ if (n == 0)
+ return NO_POLL_CHAR;
+
+ return ch;
+}
+
+static void hvc_poll_put_char(struct tty_driver *driver, int line, char ch)
+{
+ struct tty_struct *tty = driver->ttys[0];
+ struct hvc_struct *hp = tty->driver_data;
+ int n;
+
+ do {
+ n = hp->ops->put_chars(hp->vtermno, &ch, 1);
+ } while (n <= 0);
+}
+#endif
+
static const struct tty_operations hvc_ops = {
.open = hvc_open,
.close = hvc_close,
@@ -755,6 +812,13 @@ static const struct tty_operations hvc_ops = {
.unthrottle = hvc_unthrottle,
.write_room = hvc_write_room,
.chars_in_buffer = hvc_chars_in_buffer,
+ .tiocmget = hvc_tiocmget,
+ .tiocmset = hvc_tiocmset,
+#ifdef CONFIG_CONSOLE_POLL
+ .poll_init = hvc_poll_init,
+ .poll_get_char = hvc_poll_get_char,
+ .poll_put_char = hvc_poll_put_char,
+#endif
};
struct hvc_struct *hvc_alloc(uint32_t vtermno, int data,
@@ -765,7 +829,7 @@ struct hvc_struct *hvc_alloc(uint32_t vtermno, int data,
int i;
/* We wait until a driver actually comes along */
- if (!hvc_driver) {
+ if (atomic_inc_not_zero(&hvc_needs_init)) {
int err = hvc_init();
if (err)
return ERR_PTR(err);
diff --git a/drivers/tty/hvc/hvc_console.h b/drivers/tty/hvc/hvc_console.h
index 54381eba..c335a14 100644
--- a/drivers/tty/hvc/hvc_console.h
+++ b/drivers/tty/hvc/hvc_console.h
@@ -73,6 +73,10 @@ struct hv_ops {
int (*notifier_add)(struct hvc_struct *hp, int irq);
void (*notifier_del)(struct hvc_struct *hp, int irq);
void (*notifier_hangup)(struct hvc_struct *hp, int irq);
+
+ /* tiocmget/set implementation */
+ int (*tiocmget)(struct hvc_struct *hp);
+ int (*tiocmset)(struct hvc_struct *hp, unsigned int set, unsigned int clear);
};
/* Register a vterm and a slot index for use as a console (console_init) */
diff --git a/drivers/tty/hvc/hvc_irq.c b/drivers/tty/hvc/hvc_irq.c
index 2623e17..c9adb05 100644
--- a/drivers/tty/hvc/hvc_irq.c
+++ b/drivers/tty/hvc/hvc_irq.c
@@ -28,7 +28,7 @@ int notifier_add_irq(struct hvc_struct *hp, int irq)
hp->irq_requested = 0;
return 0;
}
- rc = request_irq(irq, hvc_handle_interrupt, IRQF_DISABLED,
+ rc = request_irq(irq, hvc_handle_interrupt, 0,
"hvc_console", hp);
if (!rc)
hp->irq_requested = 1;
diff --git a/drivers/tty/hvc/hvc_iseries.c b/drivers/tty/hvc/hvc_iseries.c
index 21c5495..3f4a897 100644
--- a/drivers/tty/hvc/hvc_iseries.c
+++ b/drivers/tty/hvc/hvc_iseries.c
@@ -23,6 +23,7 @@
#include <linux/types.h>
#include <linux/init.h>
#include <linux/kernel.h>
+#include <linux/module.h>
#include <linux/spinlock.h>
#include <linux/console.h>
diff --git a/drivers/tty/hvc/hvc_vio.c b/drivers/tty/hvc/hvc_vio.c
index e6eea14..fc3c3ad 100644
--- a/drivers/tty/hvc/hvc_vio.c
+++ b/drivers/tty/hvc/hvc_vio.c
@@ -27,15 +27,28 @@
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * TODO:
+ *
+ * - handle error in sending hvsi protocol packets
+ * - retry nego on subsequent sends ?
*/
+#undef DEBUG
+
#include <linux/types.h>
#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/console.h>
+#include <linux/module.h>
#include <asm/hvconsole.h>
#include <asm/vio.h>
#include <asm/prom.h>
#include <asm/firmware.h>
+#include <asm/hvsi.h>
+#include <asm/udbg.h>
#include "hvc_console.h"
@@ -43,59 +56,236 @@ static const char hvc_driver_name[] = "hvc_console";
static struct vio_device_id hvc_driver_table[] __devinitdata = {
{"serial", "hvterm1"},
+#ifndef HVC_OLD_HVSI
+ {"serial", "hvterm-protocol"},
+#endif
{ "", "" }
};
MODULE_DEVICE_TABLE(vio, hvc_driver_table);
-static int filtered_get_chars(uint32_t vtermno, char *buf, int count)
+typedef enum hv_protocol {
+ HV_PROTOCOL_RAW,
+ HV_PROTOCOL_HVSI
+} hv_protocol_t;
+
+struct hvterm_priv {
+ u32 termno; /* HV term number */
+ hv_protocol_t proto; /* Raw data or HVSI packets */
+ struct hvsi_priv hvsi; /* HVSI specific data */
+ spinlock_t buf_lock;
+ char buf[SIZE_VIO_GET_CHARS];
+ int left;
+ int offset;
+};
+static struct hvterm_priv *hvterm_privs[MAX_NR_HVC_CONSOLES];
+/* For early boot console */
+static struct hvterm_priv hvterm_priv0;
+
+static int hvterm_raw_get_chars(uint32_t vtermno, char *buf, int count)
{
- unsigned long got;
- int i;
+ struct hvterm_priv *pv = hvterm_privs[vtermno];
+ unsigned long i;
+ unsigned long flags;
+ int got;
- /*
- * Vio firmware will read up to SIZE_VIO_GET_CHARS at its own discretion
- * so we play safe and avoid the situation where got > count which could
- * overload the flip buffer.
- */
- if (count < SIZE_VIO_GET_CHARS)
- return -EAGAIN;
+ if (WARN_ON(!pv))
+ return 0;
- got = hvc_get_chars(vtermno, buf, count);
+ spin_lock_irqsave(&pv->buf_lock, flags);
- /*
- * Work around a HV bug where it gives us a null
- * after every \r. -- paulus
- */
- for (i = 1; i < got; ++i) {
- if (buf[i] == 0 && buf[i-1] == '\r') {
- --got;
- if (i < got)
- memmove(&buf[i], &buf[i+1],
- got - i);
+ if (pv->left == 0) {
+ pv->offset = 0;
+ pv->left = hvc_get_chars(pv->termno, pv->buf, count);
+
+ /*
+ * Work around a HV bug where it gives us a null
+ * after every \r. -- paulus
+ */
+ for (i = 1; i < pv->left; ++i) {
+ if (pv->buf[i] == 0 && pv->buf[i-1] == '\r') {
+ --pv->left;
+ if (i < pv->left) {
+ memmove(&pv->buf[i], &pv->buf[i+1],
+ pv->left - i);
+ }
+ }
}
}
+
+ got = min(count, pv->left);
+ memcpy(buf, &pv->buf[pv->offset], got);
+ pv->offset += got;
+ pv->left -= got;
+
+ spin_unlock_irqrestore(&pv->buf_lock, flags);
+
return got;
}
-static const struct hv_ops hvc_get_put_ops = {
- .get_chars = filtered_get_chars,
- .put_chars = hvc_put_chars,
+static int hvterm_raw_put_chars(uint32_t vtermno, const char *buf, int count)
+{
+ struct hvterm_priv *pv = hvterm_privs[vtermno];
+
+ if (WARN_ON(!pv))
+ return 0;
+
+ return hvc_put_chars(pv->termno, buf, count);
+}
+
+static const struct hv_ops hvterm_raw_ops = {
+ .get_chars = hvterm_raw_get_chars,
+ .put_chars = hvterm_raw_put_chars,
.notifier_add = notifier_add_irq,
.notifier_del = notifier_del_irq,
.notifier_hangup = notifier_hangup_irq,
};
+static int hvterm_hvsi_get_chars(uint32_t vtermno, char *buf, int count)
+{
+ struct hvterm_priv *pv = hvterm_privs[vtermno];
+
+ if (WARN_ON(!pv))
+ return 0;
+
+ return hvsilib_get_chars(&pv->hvsi, buf, count);
+}
+
+static int hvterm_hvsi_put_chars(uint32_t vtermno, const char *buf, int count)
+{
+ struct hvterm_priv *pv = hvterm_privs[vtermno];
+
+ if (WARN_ON(!pv))
+ return 0;
+
+ return hvsilib_put_chars(&pv->hvsi, buf, count);
+}
+
+static int hvterm_hvsi_open(struct hvc_struct *hp, int data)
+{
+ struct hvterm_priv *pv = hvterm_privs[hp->vtermno];
+ int rc;
+
+ pr_devel("HVSI@%x: open !\n", pv->termno);
+
+ rc = notifier_add_irq(hp, data);
+ if (rc)
+ return rc;
+
+ return hvsilib_open(&pv->hvsi, hp);
+}
+
+static void hvterm_hvsi_close(struct hvc_struct *hp, int data)
+{
+ struct hvterm_priv *pv = hvterm_privs[hp->vtermno];
+
+ pr_devel("HVSI@%x: do close !\n", pv->termno);
+
+ hvsilib_close(&pv->hvsi, hp);
+
+ notifier_del_irq(hp, data);
+}
+
+void hvterm_hvsi_hangup(struct hvc_struct *hp, int data)
+{
+ struct hvterm_priv *pv = hvterm_privs[hp->vtermno];
+
+ pr_devel("HVSI@%x: do hangup !\n", pv->termno);
+
+ hvsilib_close(&pv->hvsi, hp);
+
+ notifier_hangup_irq(hp, data);
+}
+
+static int hvterm_hvsi_tiocmget(struct hvc_struct *hp)
+{
+ struct hvterm_priv *pv = hvterm_privs[hp->vtermno];
+
+ if (!pv)
+ return -EINVAL;
+ return pv->hvsi.mctrl;
+}
+
+static int hvterm_hvsi_tiocmset(struct hvc_struct *hp, unsigned int set,
+ unsigned int clear)
+{
+ struct hvterm_priv *pv = hvterm_privs[hp->vtermno];
+
+ pr_devel("HVSI@%x: Set modem control, set=%x,clr=%x\n",
+ pv->termno, set, clear);
+
+ if (set & TIOCM_DTR)
+ hvsilib_write_mctrl(&pv->hvsi, 1);
+ else if (clear & TIOCM_DTR)
+ hvsilib_write_mctrl(&pv->hvsi, 0);
+
+ return 0;
+}
+
+static const struct hv_ops hvterm_hvsi_ops = {
+ .get_chars = hvterm_hvsi_get_chars,
+ .put_chars = hvterm_hvsi_put_chars,
+ .notifier_add = hvterm_hvsi_open,
+ .notifier_del = hvterm_hvsi_close,
+ .notifier_hangup = hvterm_hvsi_hangup,
+ .tiocmget = hvterm_hvsi_tiocmget,
+ .tiocmset = hvterm_hvsi_tiocmset,
+};
+
static int __devinit hvc_vio_probe(struct vio_dev *vdev,
- const struct vio_device_id *id)
+ const struct vio_device_id *id)
{
+ const struct hv_ops *ops;
struct hvc_struct *hp;
+ struct hvterm_priv *pv;
+ hv_protocol_t proto;
+ int i, termno = -1;
/* probed with invalid parameters. */
if (!vdev || !id)
return -EPERM;
- hp = hvc_alloc(vdev->unit_address, vdev->irq, &hvc_get_put_ops,
- MAX_VIO_PUT_CHARS);
+ if (of_device_is_compatible(vdev->dev.of_node, "hvterm1")) {
+ proto = HV_PROTOCOL_RAW;
+ ops = &hvterm_raw_ops;
+ } else if (of_device_is_compatible(vdev->dev.of_node, "hvterm-protocol")) {
+ proto = HV_PROTOCOL_HVSI;
+ ops = &hvterm_hvsi_ops;
+ } else {
+ pr_err("hvc_vio: Unkown protocol for %s\n", vdev->dev.of_node->full_name);
+ return -ENXIO;
+ }
+
+ pr_devel("hvc_vio_probe() device %s, using %s protocol\n",
+ vdev->dev.of_node->full_name,
+ proto == HV_PROTOCOL_RAW ? "raw" : "hvsi");
+
+ /* Is it our boot one ? */
+ if (hvterm_privs[0] == &hvterm_priv0 &&
+ vdev->unit_address == hvterm_priv0.termno) {
+ pv = hvterm_privs[0];
+ termno = 0;
+ pr_devel("->boot console, using termno 0\n");
+ }
+ /* nope, allocate a new one */
+ else {
+ for (i = 0; i < MAX_NR_HVC_CONSOLES && termno < 0; i++)
+ if (!hvterm_privs[i])
+ termno = i;
+ pr_devel("->non-boot console, using termno %d\n", termno);
+ if (termno < 0)
+ return -ENODEV;
+ pv = kzalloc(sizeof(struct hvterm_priv), GFP_KERNEL);
+ if (!pv)
+ return -ENOMEM;
+ pv->termno = vdev->unit_address;
+ pv->proto = proto;
+ spin_lock_init(&pv->buf_lock);
+ hvterm_privs[termno] = pv;
+ hvsilib_init(&pv->hvsi, hvc_get_chars, hvc_put_chars,
+ pv->termno, 0);
+ }
+
+ hp = hvc_alloc(termno, vdev->irq, ops, MAX_VIO_PUT_CHARS);
if (IS_ERR(hp))
return PTR_ERR(hp);
dev_set_drvdata(&vdev->dev, hp);
@@ -106,8 +296,16 @@ static int __devinit hvc_vio_probe(struct vio_dev *vdev,
static int __devexit hvc_vio_remove(struct vio_dev *vdev)
{
struct hvc_struct *hp = dev_get_drvdata(&vdev->dev);
+ int rc, termno;
- return hvc_remove(hp);
+ termno = hp->vtermno;
+ rc = hvc_remove(hp);
+ if (rc == 0) {
+ if (hvterm_privs[termno] != &hvterm_priv0)
+ kfree(hvterm_privs[termno]);
+ hvterm_privs[termno] = NULL;
+ }
+ return rc;
}
static struct vio_driver hvc_vio_driver = {
@@ -140,34 +338,149 @@ static void __exit hvc_vio_exit(void)
}
module_exit(hvc_vio_exit);
-/* the device tree order defines our numbering */
-static int hvc_find_vtys(void)
+static void udbg_hvc_putc(char c)
{
- struct device_node *vty;
- int num_found = 0;
+ int count = -1;
- for (vty = of_find_node_by_name(NULL, "vty"); vty != NULL;
- vty = of_find_node_by_name(vty, "vty")) {
- const uint32_t *vtermno;
+ if (c == '\n')
+ udbg_hvc_putc('\r');
- /* We have statically defined space for only a certain number
- * of console adapters.
- */
- if (num_found >= MAX_NR_HVC_CONSOLES) {
- of_node_put(vty);
+ do {
+ switch(hvterm_priv0.proto) {
+ case HV_PROTOCOL_RAW:
+ count = hvterm_raw_put_chars(0, &c, 1);
+ break;
+ case HV_PROTOCOL_HVSI:
+ count = hvterm_hvsi_put_chars(0, &c, 1);
break;
}
+ } while(count == 0);
+}
+
+static int udbg_hvc_getc_poll(void)
+{
+ int rc = 0;
+ char c;
- vtermno = of_get_property(vty, "reg", NULL);
- if (!vtermno)
- continue;
+ switch(hvterm_priv0.proto) {
+ case HV_PROTOCOL_RAW:
+ rc = hvterm_raw_get_chars(0, &c, 1);
+ break;
+ case HV_PROTOCOL_HVSI:
+ rc = hvterm_hvsi_get_chars(0, &c, 1);
+ break;
+ }
+ if (!rc)
+ return -1;
+ return c;
+}
- if (of_device_is_compatible(vty, "hvterm1")) {
- hvc_instantiate(*vtermno, num_found, &hvc_get_put_ops);
- ++num_found;
+static int udbg_hvc_getc(void)
+{
+ int ch;
+ for (;;) {
+ ch = udbg_hvc_getc_poll();
+ if (ch == -1) {
+ /* This shouldn't be needed...but... */
+ volatile unsigned long delay;
+ for (delay=0; delay < 2000000; delay++)
+ ;
+ } else {
+ return ch;
}
}
+}
+
+void __init hvc_vio_init_early(void)
+{
+ struct device_node *stdout_node;
+ const u32 *termno;
+ const char *name;
+ const struct hv_ops *ops;
+
+ /* find the boot console from /chosen/stdout */
+ if (!of_chosen)
+ return;
+ name = of_get_property(of_chosen, "linux,stdout-path", NULL);
+ if (name == NULL)
+ return;
+ stdout_node = of_find_node_by_path(name);
+ if (!stdout_node)
+ return;
+ name = of_get_property(stdout_node, "name", NULL);
+ if (!name) {
+ printk(KERN_WARNING "stdout node missing 'name' property!\n");
+ goto out;
+ }
+
+ /* Check if it's a virtual terminal */
+ if (strncmp(name, "vty", 3) != 0)
+ goto out;
+ termno = of_get_property(stdout_node, "reg", NULL);
+ if (termno == NULL)
+ goto out;
+ hvterm_priv0.termno = *termno;
+ spin_lock_init(&hvterm_priv0.buf_lock);
+ hvterm_privs[0] = &hvterm_priv0;
+
+ /* Check the protocol */
+ if (of_device_is_compatible(stdout_node, "hvterm1")) {
+ hvterm_priv0.proto = HV_PROTOCOL_RAW;
+ ops = &hvterm_raw_ops;
+ }
+ else if (of_device_is_compatible(stdout_node, "hvterm-protocol")) {
+ hvterm_priv0.proto = HV_PROTOCOL_HVSI;
+ ops = &hvterm_hvsi_ops;
+ hvsilib_init(&hvterm_priv0.hvsi, hvc_get_chars, hvc_put_chars,
+ hvterm_priv0.termno, 1);
+ /* HVSI, perform the handshake now */
+ hvsilib_establish(&hvterm_priv0.hvsi);
+ } else
+ goto out;
+ udbg_putc = udbg_hvc_putc;
+ udbg_getc = udbg_hvc_getc;
+ udbg_getc_poll = udbg_hvc_getc_poll;
+#ifdef HVC_OLD_HVSI
+ /* When using the old HVSI driver don't register the HVC
+ * backend for HVSI, only do udbg
+ */
+ if (hvterm_priv0.proto == HV_PROTOCOL_HVSI)
+ goto out;
+#endif
+ add_preferred_console("hvc", 0, NULL);
+ hvc_instantiate(0, 0, ops);
+out:
+ of_node_put(stdout_node);
+}
- return num_found;
+/* call this from early_init() for a working debug console on
+ * vterm capable LPAR machines
+ */
+#ifdef CONFIG_PPC_EARLY_DEBUG_LPAR
+void __init udbg_init_debug_lpar(void)
+{
+ hvterm_privs[0] = &hvterm_priv0;
+ hvterm_priv0.termno = 0;
+ hvterm_priv0.proto = HV_PROTOCOL_RAW;
+ spin_lock_init(&hvterm_priv0.buf_lock);
+ udbg_putc = udbg_hvc_putc;
+ udbg_getc = udbg_hvc_getc;
+ udbg_getc_poll = udbg_hvc_getc_poll;
+}
+#endif /* CONFIG_PPC_EARLY_DEBUG_LPAR */
+
+#ifdef CONFIG_PPC_EARLY_DEBUG_LPAR_HVSI
+void __init udbg_init_debug_lpar_hvsi(void)
+{
+ hvterm_privs[0] = &hvterm_priv0;
+ hvterm_priv0.termno = CONFIG_PPC_EARLY_DEBUG_HVSI_VTERMNO;
+ hvterm_priv0.proto = HV_PROTOCOL_HVSI;
+ spin_lock_init(&hvterm_priv0.buf_lock);
+ udbg_putc = udbg_hvc_putc;
+ udbg_getc = udbg_hvc_getc;
+ udbg_getc_poll = udbg_hvc_getc_poll;
+ hvsilib_init(&hvterm_priv0.hvsi, hvc_get_chars, hvc_put_chars,
+ hvterm_priv0.termno, 1);
+ hvsilib_establish(&hvterm_priv0.hvsi);
}
-console_initcall(hvc_find_vtys);
+#endif /* CONFIG_PPC_EARLY_DEBUG_LPAR_HVSI */
diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c
index 52fdf60..df8f8e0 100644
--- a/drivers/tty/hvc/hvc_xen.c
+++ b/drivers/tty/hvc/hvc_xen.c
@@ -167,7 +167,7 @@ static int __init xen_hvc_init(void)
if (xen_initial_domain()) {
ops = &dom0_hvc_ops;
- xencons_irq = bind_virq_to_irq(VIRQ_CONSOLE, 0);
+ xencons_irq = bind_virq_to_irq(VIRQ_CONSOLE, 0, false);
} else {
if (!xen_start_info->console.domU.evtchn)
return -ENODEV;
diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c
index 4c8b665..b9040be 100644
--- a/drivers/tty/hvc/hvcs.c
+++ b/drivers/tty/hvc/hvcs.c
@@ -1057,7 +1057,7 @@ static int hvcs_enable_device(struct hvcs_struct *hvcsd, uint32_t unit_address,
* the conn was registered and now.
*/
if (!(rc = request_irq(irq, &hvcs_handle_interrupt,
- IRQF_DISABLED, "ibmhvcs", hvcsd))) {
+ 0, "ibmhvcs", hvcsd))) {
/*
* It is possible the vty-server was removed after the irq was
* requested but before we have time to enable interrupts.
@@ -1237,7 +1237,7 @@ static void hvcs_close(struct tty_struct *tty, struct file *filp)
irq = hvcsd->vdev->irq;
spin_unlock_irqrestore(&hvcsd->lock, flags);
- tty_wait_until_sent(tty, HVCS_CLOSE_WAIT);
+ tty_wait_until_sent_from_close(tty, HVCS_CLOSE_WAIT);
/*
* This line is important because it tells hvcs_open that this
@@ -1532,7 +1532,7 @@ static int __devinit hvcs_initialize(void)
goto register_fail;
}
- hvcs_pi_buff = kmalloc(PAGE_SIZE, GFP_KERNEL);
+ hvcs_pi_buff = (unsigned long *) __get_free_page(GFP_KERNEL);
if (!hvcs_pi_buff) {
rc = -ENOMEM;
goto buff_alloc_fail;
@@ -1548,7 +1548,7 @@ static int __devinit hvcs_initialize(void)
return 0;
kthread_fail:
- kfree(hvcs_pi_buff);
+ free_page((unsigned long)hvcs_pi_buff);
buff_alloc_fail:
tty_unregister_driver(hvcs_tty_driver);
register_fail:
@@ -1597,7 +1597,7 @@ static void __exit hvcs_module_exit(void)
kthread_stop(hvcs_task);
spin_lock(&hvcs_pi_lock);
- kfree(hvcs_pi_buff);
+ free_page((unsigned long)hvcs_pi_buff);
hvcs_pi_buff = NULL;
spin_unlock(&hvcs_pi_lock);
diff --git a/drivers/tty/hvc/hvsi.c b/drivers/tty/hvc/hvsi.c
index 8a8d637..cdfa3e0 100644
--- a/drivers/tty/hvc/hvsi.c
+++ b/drivers/tty/hvc/hvsi.c
@@ -49,6 +49,7 @@
#include <asm/uaccess.h>
#include <asm/vio.h>
#include <asm/param.h>
+#include <asm/hvsi.h>
#define HVSI_MAJOR 229
#define HVSI_MINOR 128
@@ -109,68 +110,6 @@ enum HVSI_PROTOCOL_STATE {
};
#define HVSI_CONSOLE 0x1
-#define VS_DATA_PACKET_HEADER 0xff
-#define VS_CONTROL_PACKET_HEADER 0xfe
-#define VS_QUERY_PACKET_HEADER 0xfd
-#define VS_QUERY_RESPONSE_PACKET_HEADER 0xfc
-
-/* control verbs */
-#define VSV_SET_MODEM_CTL 1 /* to service processor only */
-#define VSV_MODEM_CTL_UPDATE 2 /* from service processor only */
-#define VSV_CLOSE_PROTOCOL 3
-
-/* query verbs */
-#define VSV_SEND_VERSION_NUMBER 1
-#define VSV_SEND_MODEM_CTL_STATUS 2
-
-/* yes, these masks are not consecutive. */
-#define HVSI_TSDTR 0x01
-#define HVSI_TSCD 0x20
-
-struct hvsi_header {
- uint8_t type;
- uint8_t len;
- uint16_t seqno;
-} __attribute__((packed));
-
-struct hvsi_data {
- uint8_t type;
- uint8_t len;
- uint16_t seqno;
- uint8_t data[HVSI_MAX_OUTGOING_DATA];
-} __attribute__((packed));
-
-struct hvsi_control {
- uint8_t type;
- uint8_t len;
- uint16_t seqno;
- uint16_t verb;
- /* optional depending on verb: */
- uint32_t word;
- uint32_t mask;
-} __attribute__((packed));
-
-struct hvsi_query {
- uint8_t type;
- uint8_t len;
- uint16_t seqno;
- uint16_t verb;
-} __attribute__((packed));
-
-struct hvsi_query_response {
- uint8_t type;
- uint8_t len;
- uint16_t seqno;
- uint16_t verb;
- uint16_t query_seqno;
- union {
- uint8_t version;
- uint32_t mctrl_word;
- } u;
-} __attribute__((packed));
-
-
-
static inline int is_console(struct hvsi_struct *hp)
{
return hp->flags & HVSI_CONSOLE;
@@ -356,18 +295,18 @@ static int hvsi_version_respond(struct hvsi_struct *hp, uint16_t query_seqno)
struct hvsi_query_response packet __ALIGNED__;
int wrote;
- packet.type = VS_QUERY_RESPONSE_PACKET_HEADER;
- packet.len = sizeof(struct hvsi_query_response);
- packet.seqno = atomic_inc_return(&hp->seqno);
+ packet.hdr.type = VS_QUERY_RESPONSE_PACKET_HEADER;
+ packet.hdr.len = sizeof(struct hvsi_query_response);
+ packet.hdr.seqno = atomic_inc_return(&hp->seqno);
packet.verb = VSV_SEND_VERSION_NUMBER;
packet.u.version = HVSI_VERSION;
packet.query_seqno = query_seqno+1;
- pr_debug("%s: sending %i bytes\n", __func__, packet.len);
- dbg_dump_hex((uint8_t*)&packet, packet.len);
+ pr_debug("%s: sending %i bytes\n", __func__, packet.hdr.len);
+ dbg_dump_hex((uint8_t*)&packet, packet.hdr.len);
- wrote = hvc_put_chars(hp->vtermno, (char *)&packet, packet.len);
- if (wrote != packet.len) {
+ wrote = hvc_put_chars(hp->vtermno, (char *)&packet, packet.hdr.len);
+ if (wrote != packet.hdr.len) {
printk(KERN_ERR "hvsi%i: couldn't send query response!\n",
hp->index);
return -EIO;
@@ -382,7 +321,7 @@ static void hvsi_recv_query(struct hvsi_struct *hp, uint8_t *packet)
switch (hp->state) {
case HVSI_WAIT_FOR_VER_QUERY:
- hvsi_version_respond(hp, query->seqno);
+ hvsi_version_respond(hp, query->hdr.seqno);
__set_state(hp, HVSI_OPEN);
break;
default:
@@ -640,16 +579,16 @@ static int hvsi_query(struct hvsi_struct *hp, uint16_t verb)
struct hvsi_query packet __ALIGNED__;
int wrote;
- packet.type = VS_QUERY_PACKET_HEADER;
- packet.len = sizeof(struct hvsi_query);
- packet.seqno = atomic_inc_return(&hp->seqno);
+ packet.hdr.type = VS_QUERY_PACKET_HEADER;
+ packet.hdr.len = sizeof(struct hvsi_query);
+ packet.hdr.seqno = atomic_inc_return(&hp->seqno);
packet.verb = verb;
- pr_debug("%s: sending %i bytes\n", __func__, packet.len);
- dbg_dump_hex((uint8_t*)&packet, packet.len);
+ pr_debug("%s: sending %i bytes\n", __func__, packet.hdr.len);
+ dbg_dump_hex((uint8_t*)&packet, packet.hdr.len);
- wrote = hvc_put_chars(hp->vtermno, (char *)&packet, packet.len);
- if (wrote != packet.len) {
+ wrote = hvc_put_chars(hp->vtermno, (char *)&packet, packet.hdr.len);
+ if (wrote != packet.hdr.len) {
printk(KERN_ERR "hvsi%i: couldn't send query (%i)!\n", hp->index,
wrote);
return -EIO;
@@ -683,20 +622,20 @@ static int hvsi_set_mctrl(struct hvsi_struct *hp, uint16_t mctrl)
struct hvsi_control packet __ALIGNED__;
int wrote;
- packet.type = VS_CONTROL_PACKET_HEADER,
- packet.seqno = atomic_inc_return(&hp->seqno);
- packet.len = sizeof(struct hvsi_control);
+ packet.hdr.type = VS_CONTROL_PACKET_HEADER,
+ packet.hdr.seqno = atomic_inc_return(&hp->seqno);
+ packet.hdr.len = sizeof(struct hvsi_control);
packet.verb = VSV_SET_MODEM_CTL;
packet.mask = HVSI_TSDTR;
if (mctrl & TIOCM_DTR)
packet.word = HVSI_TSDTR;
- pr_debug("%s: sending %i bytes\n", __func__, packet.len);
- dbg_dump_hex((uint8_t*)&packet, packet.len);
+ pr_debug("%s: sending %i bytes\n", __func__, packet.hdr.len);
+ dbg_dump_hex((uint8_t*)&packet, packet.hdr.len);
- wrote = hvc_put_chars(hp->vtermno, (char *)&packet, packet.len);
- if (wrote != packet.len) {
+ wrote = hvc_put_chars(hp->vtermno, (char *)&packet, packet.hdr.len);
+ if (wrote != packet.hdr.len) {
printk(KERN_ERR "hvsi%i: couldn't set DTR!\n", hp->index);
return -EIO;
}
@@ -766,13 +705,13 @@ static int hvsi_put_chars(struct hvsi_struct *hp, const char *buf, int count)
BUG_ON(count > HVSI_MAX_OUTGOING_DATA);
- packet.type = VS_DATA_PACKET_HEADER;
- packet.seqno = atomic_inc_return(&hp->seqno);
- packet.len = count + sizeof(struct hvsi_header);
+ packet.hdr.type = VS_DATA_PACKET_HEADER;
+ packet.hdr.seqno = atomic_inc_return(&hp->seqno);
+ packet.hdr.len = count + sizeof(struct hvsi_header);
memcpy(&packet.data, buf, count);
- ret = hvc_put_chars(hp->vtermno, (char *)&packet, packet.len);
- if (ret == packet.len) {
+ ret = hvc_put_chars(hp->vtermno, (char *)&packet, packet.hdr.len);
+ if (ret == packet.hdr.len) {
/* return the number of chars written, not the packet length */
return count;
}
@@ -783,15 +722,15 @@ static void hvsi_close_protocol(struct hvsi_struct *hp)
{
struct hvsi_control packet __ALIGNED__;
- packet.type = VS_CONTROL_PACKET_HEADER;
- packet.seqno = atomic_inc_return(&hp->seqno);
- packet.len = 6;
+ packet.hdr.type = VS_CONTROL_PACKET_HEADER;
+ packet.hdr.seqno = atomic_inc_return(&hp->seqno);
+ packet.hdr.len = 6;
packet.verb = VSV_CLOSE_PROTOCOL;
- pr_debug("%s: sending %i bytes\n", __func__, packet.len);
- dbg_dump_hex((uint8_t*)&packet, packet.len);
+ pr_debug("%s: sending %i bytes\n", __func__, packet.hdr.len);
+ dbg_dump_hex((uint8_t*)&packet, packet.hdr.len);
- hvc_put_chars(hp->vtermno, (char *)&packet, packet.len);
+ hvc_put_chars(hp->vtermno, (char *)&packet, packet.hdr.len);
}
static int hvsi_open(struct tty_struct *tty, struct file *filp)
@@ -1166,7 +1105,7 @@ static int __init hvsi_init(void)
struct hvsi_struct *hp = &hvsi_ports[i];
int ret = 1;
- ret = request_irq(hp->virq, hvsi_interrupt, IRQF_DISABLED, "hvsi", hp);
+ ret = request_irq(hp->virq, hvsi_interrupt, 0, "hvsi", hp);
if (ret)
printk(KERN_ERR "HVSI: couldn't reserve irq 0x%x (error %i)\n",
hp->virq, ret);
diff --git a/drivers/tty/serial/cpm_uart/cpm_uart_core.c b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
index 9488da7..b418947 100644
--- a/drivers/tty/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
@@ -31,6 +31,7 @@
#include <linux/module.h>
#include <linux/tty.h>
+#include <linux/tty_flip.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/serial.h>
diff --git a/drivers/tty/serial/jsm/jsm.h b/drivers/tty/serial/jsm/jsm.h
index 5b837e7..529bec6 100644
--- a/drivers/tty/serial/jsm/jsm.h
+++ b/drivers/tty/serial/jsm/jsm.h
@@ -88,7 +88,6 @@ enum {
/* 4 extra for alignment play space */
#define WRITEBUFLEN ((4096) + 4)
-#define MYFLIPLEN N_TTY_BUF_SIZE
#define JSM_VERSION "jsm: 1.2-1-INKERNEL"
#define JSM_PARTNUM "40002438_A-INKERNEL"
@@ -150,7 +149,6 @@ struct jsm_board
u32 bd_uart_offset; /* Space between each UART */
struct jsm_channel *channels[MAXPORTS]; /* array of pointers to our channels. */
- char *flipbuf; /* Our flip buffer, alloced if board is found */
u32 bd_dividend; /* Board/UARTs specific dividend */
@@ -177,7 +175,6 @@ struct jsm_board
#define CH_TX_FIFO_LWM 0x0800 /* TX Fifo is below Low Water */
#define CH_BREAK_SENDING 0x1000 /* Break is being sent */
#define CH_LOOPBACK 0x2000 /* Channel is in lookback mode */
-#define CH_FLIPBUF_IN_USE 0x4000 /* Channel's flipbuf is in use */
#define CH_BAUD0 0x08000 /* Used for checking B0 transitions */
/* Our Read/Error/Write queue sizes */
diff --git a/drivers/tty/serial/jsm/jsm_driver.c b/drivers/tty/serial/jsm/jsm_driver.c
index 6c12d94..7545fe1 100644
--- a/drivers/tty/serial/jsm/jsm_driver.c
+++ b/drivers/tty/serial/jsm/jsm_driver.c
@@ -24,7 +24,7 @@
*
*
***********************************************************************/
-#include <linux/moduleparam.h>
+#include <linux/module.h>
#include <linux/pci.h>
#include <linux/slab.h>
@@ -160,27 +160,10 @@ static int __devinit jsm_probe_one(struct pci_dev *pdev, const struct pci_device
dev_info(&pdev->dev, "board %d: Digi Neo (rev %d), irq %d\n",
adapter_count, brd->rev, brd->irq);
- /*
- * allocate flip buffer for board.
- *
- * Okay to malloc with GFP_KERNEL, we are not at interrupt
- * context, and there are no locks held.
- */
- brd->flipbuf = kzalloc(MYFLIPLEN, GFP_KERNEL);
- if (!brd->flipbuf) {
- /* XXX: leaking all resources from jsm_tty_init and
- jsm_uart_port_init here! */
- dev_err(&pdev->dev, "memory allocation for flipbuf failed\n");
- rc = -ENOMEM;
- goto out_free_uart;
- }
-
pci_set_drvdata(pdev, brd);
pci_save_state(pdev);
return 0;
- out_free_uart:
- jsm_remove_uart_port(brd);
out_free_irq:
jsm_remove_uart_port(brd);
free_irq(brd->irq, brd);
@@ -217,7 +200,6 @@ static void __devexit jsm_remove_one(struct pci_dev *pdev)
pci_release_regions(pdev);
pci_disable_device(pdev);
- kfree(brd->flipbuf);
kfree(brd);
}
diff --git a/drivers/tty/serial/jsm/jsm_neo.c b/drivers/tty/serial/jsm/jsm_neo.c
index bd6e846..81dfafa 100644
--- a/drivers/tty/serial/jsm/jsm_neo.c
+++ b/drivers/tty/serial/jsm/jsm_neo.c
@@ -522,7 +522,7 @@ static void neo_copy_data_from_queue_to_uart(struct jsm_channel *ch)
writeb(circ->buf[circ->tail], &ch->ch_neo_uart->txrx);
jsm_printk(WRITE, INFO, &ch->ch_bd->pci_dev,
- "Tx data: %x\n", circ->buf[circ->head]);
+ "Tx data: %x\n", circ->buf[circ->tail]);
circ->tail = (circ->tail + 1) & (UART_XMIT_SIZE - 1);
ch->ch_txcount++;
}
diff --git a/drivers/tty/vt/consolemap.c b/drivers/tty/vt/consolemap.c
index f343808..fb95acc 100644
--- a/drivers/tty/vt/consolemap.c
+++ b/drivers/tty/vt/consolemap.c
@@ -518,6 +518,8 @@ int con_set_unimap(struct vc_data *vc, ushort ct, struct unipair __user *list)
/* Save original vc_unipagdir_loc in case we allocate a new one */
p = (struct uni_pagedir *)*vc->vc_uni_pagedir_loc;
+ if (!p)
+ return -EINVAL;
if (p->readonly) return -EIO;
if (!ct) return 0;
diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
index 3761ccf..a605549 100644
--- a/drivers/tty/vt/keyboard.c
+++ b/drivers/tty/vt/keyboard.c
@@ -33,7 +33,6 @@
#include <linux/string.h>
#include <linux/init.h>
#include <linux/slab.h>
-#include <linux/irq.h>
#include <linux/kbd_kern.h>
#include <linux/kbd_diacr.h>
@@ -43,6 +42,8 @@
#include <linux/notifier.h>
#include <linux/jiffies.h>
+#include <asm/irq_regs.h>
+
extern void ctrl_alt_del(void);
/*
diff --git a/drivers/tty/vt/selection.c b/drivers/tty/vt/selection.c
index fb864e7..7a0a12a 100644
--- a/drivers/tty/vt/selection.c
+++ b/drivers/tty/vt/selection.c
@@ -301,6 +301,8 @@ int set_selection(const struct tiocl_selection __user *sel, struct tty_struct *t
/* Insert the contents of the selection buffer into the
* queue of the tty associated with the current console.
* Invoked by ioctl().
+ *
+ * Locking: always called with BTM from vt_ioctl
*/
int paste_selection(struct tty_struct *tty)
{
@@ -310,8 +312,6 @@ int paste_selection(struct tty_struct *tty)
struct tty_ldisc *ld;
DECLARE_WAITQUEUE(wait, current);
- /* always called with BTM from vt_ioctl */
- WARN_ON(!tty_locked());
console_lock();
poke_blanked_console();
diff --git a/drivers/tty/vt/vc_screen.c b/drivers/tty/vt/vc_screen.c
index ab23201..fd89c42 100644
--- a/drivers/tty/vt/vc_screen.c
+++ b/drivers/tty/vt/vc_screen.c
@@ -22,6 +22,7 @@
#include <linux/kernel.h>
#include <linux/major.h>
#include <linux/errno.h>
+#include <linux/export.h>
#include <linux/tty.h>
#include <linux/interrupt.h>
#include <linux/mm.h>
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index e41288a..c51803f 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -259,7 +259,7 @@ EXPORT_SYMBOL_GPL(unregister_vt_notifier);
static void notify_write(struct vc_data *vc, unsigned int unicode)
{
- struct vt_notifier_param param = { .vc = vc, unicode = unicode };
+ struct vt_notifier_param param = { .vc = vc, .c = unicode };
atomic_notifier_call_chain(&vt_notifier_list, VT_WRITE, &param);
}
@@ -499,6 +499,7 @@ void invert_screen(struct vc_data *vc, int offset, int count, int viewed)
#endif
if (DO_UPDATE(vc))
do_update_region(vc, (unsigned long) p, count);
+ notify_update(vc);
}
/* used by selection: complement pointer position */
@@ -515,6 +516,7 @@ void complement_pos(struct vc_data *vc, int offset)
scr_writew(old, screenpos(vc, old_offset, 1));
if (DO_UPDATE(vc))
vc->vc_sw->con_putc(vc, old, oldy, oldx);
+ notify_update(vc);
}
old_offset = offset;
@@ -532,8 +534,8 @@ void complement_pos(struct vc_data *vc, int offset)
oldy = (offset >> 1) / vc->vc_cols;
vc->vc_sw->con_putc(vc, new, oldy, oldx);
}
+ notify_update(vc);
}
-
}
static void insert_char(struct vc_data *vc, unsigned int nr)
@@ -657,7 +659,7 @@ static inline void save_screen(struct vc_data *vc)
* Redrawing of screen
*/
-static void clear_buffer_attributes(struct vc_data *vc)
+void clear_buffer_attributes(struct vc_data *vc)
{
unsigned short *p = (unsigned short *)vc->vc_origin;
int count = vc->vc_screenbuf_size / 2;
generated by cgit v1.1 at 2024-04-27 12:30:52 +0000