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-rw-r--r--arch/xtensa/platforms/iss/console.c12
-rw-r--r--arch/xtensa/platforms/iss/include/platform/simcall.h24
-rw-r--r--arch/xtensa/platforms/iss/setup.c8
-rw-r--r--arch/xtensa/platforms/iss/simdisk.c45
-rw-r--r--arch/xtensa/platforms/xt2000/setup.c2
-rw-r--r--arch/xtensa/platforms/xtfpga/setup.c2
6 files changed, 51 insertions, 42 deletions
diff --git a/arch/xtensa/platforms/iss/console.c b/arch/xtensa/platforms/iss/console.c
index da9866f7fecf..70cb408bc20d 100644
--- a/arch/xtensa/platforms/iss/console.c
+++ b/arch/xtensa/platforms/iss/console.c
@@ -56,13 +56,13 @@ static void rs_poll(unsigned long);
static int rs_open(struct tty_struct *tty, struct file * filp)
{
tty->port = &serial_port;
- spin_lock(&timer_lock);
+ spin_lock_bh(&timer_lock);
if (tty->count == 1) {
setup_timer(&serial_timer, rs_poll,
(unsigned long)&serial_port);
mod_timer(&serial_timer, jiffies + SERIAL_TIMER_VALUE);
}
- spin_unlock(&timer_lock);
+ spin_unlock_bh(&timer_lock);
return 0;
}
@@ -99,14 +99,13 @@ static int rs_write(struct tty_struct * tty,
static void rs_poll(unsigned long priv)
{
struct tty_port *port = (struct tty_port *)priv;
- struct timeval tv = { .tv_sec = 0, .tv_usec = 0 };
int i = 0;
unsigned char c;
spin_lock(&timer_lock);
- while (__simc(SYS_select_one, 0, XTISS_SELECT_ONE_READ, (int)&tv,0,0)){
- __simc (SYS_read, 0, (unsigned long)&c, 1, 0, 0);
+ while (simc_poll(0)) {
+ simc_read(0, &c, 1);
tty_insert_flip_char(port, c, TTY_NORMAL);
i++;
}
@@ -244,8 +243,7 @@ static void iss_console_write(struct console *co, const char *s, unsigned count)
int len = strlen(s);
if (s != 0 && *s != 0)
- __simc (SYS_write, 1, (unsigned long)s,
- count < len ? count : len,0,0);
+ simc_write(1, s, count < len ? count : len);
}
static struct tty_driver* iss_console_device(struct console *c, int *index)
diff --git a/arch/xtensa/platforms/iss/include/platform/simcall.h b/arch/xtensa/platforms/iss/include/platform/simcall.h
index b5a4edf02d76..12b15ad1e586 100644
--- a/arch/xtensa/platforms/iss/include/platform/simcall.h
+++ b/arch/xtensa/platforms/iss/include/platform/simcall.h
@@ -59,56 +59,58 @@
static int errno;
-static inline int __simc(int a, int b, int c, int d, int e, int f)
+static inline int __simc(int a, int b, int c, int d)
{
int ret;
register int a1 asm("a2") = a;
register int b1 asm("a3") = b;
register int c1 asm("a4") = c;
register int d1 asm("a5") = d;
- register int e1 asm("a6") = e;
- register int f1 asm("a7") = f;
__asm__ __volatile__ (
"simcall\n"
"mov %0, a2\n"
"mov %1, a3\n"
: "=a" (ret), "=a" (errno), "+r"(a1), "+r"(b1)
- : "r"(c1), "r"(d1), "r"(e1), "r"(f1)
+ : "r"(c1), "r"(d1)
: "memory");
return ret;
}
static inline int simc_open(const char *file, int flags, int mode)
{
- return __simc(SYS_open, (int) file, flags, mode, 0, 0);
+ return __simc(SYS_open, (int) file, flags, mode);
}
static inline int simc_close(int fd)
{
- return __simc(SYS_close, fd, 0, 0, 0, 0);
+ return __simc(SYS_close, fd, 0, 0);
}
static inline int simc_ioctl(int fd, int request, void *arg)
{
- return __simc(SYS_ioctl, fd, request, (int) arg, 0, 0);
+ return __simc(SYS_ioctl, fd, request, (int) arg);
}
static inline int simc_read(int fd, void *buf, size_t count)
{
- return __simc(SYS_read, fd, (int) buf, count, 0, 0);
+ return __simc(SYS_read, fd, (int) buf, count);
}
static inline int simc_write(int fd, const void *buf, size_t count)
{
- return __simc(SYS_write, fd, (int) buf, count, 0, 0);
+ return __simc(SYS_write, fd, (int) buf, count);
}
static inline int simc_poll(int fd)
{
struct timeval tv = { .tv_sec = 0, .tv_usec = 0 };
- return __simc(SYS_select_one, fd, XTISS_SELECT_ONE_READ, (int)&tv,
- 0, 0);
+ return __simc(SYS_select_one, fd, XTISS_SELECT_ONE_READ, (int)&tv);
+}
+
+static inline int simc_lseek(int fd, uint32_t off, int whence)
+{
+ return __simc(SYS_lseek, fd, off, whence);
}
#endif /* _XTENSA_PLATFORM_ISS_SIMCALL_H */
diff --git a/arch/xtensa/platforms/iss/setup.c b/arch/xtensa/platforms/iss/setup.c
index e1700102f35e..da7d18240866 100644
--- a/arch/xtensa/platforms/iss/setup.c
+++ b/arch/xtensa/platforms/iss/setup.c
@@ -38,12 +38,6 @@ void __init platform_init(bp_tag_t* bootparam)
}
-#ifdef CONFIG_PCI
-void platform_pcibios_init(void)
-{
-}
-#endif
-
void platform_halt(void)
{
pr_info(" ** Called platform_halt() **\n");
@@ -64,7 +58,9 @@ void platform_restart(void)
"wsr a2, icountlevel\n\t"
"movi a2, 0\n\t"
"wsr a2, icount\n\t"
+#if XCHAL_NUM_IBREAK > 0
"wsr a2, ibreakenable\n\t"
+#endif
"wsr a2, lcount\n\t"
"movi a2, 0x1f\n\t"
"wsr a2, ps\n\t"
diff --git a/arch/xtensa/platforms/iss/simdisk.c b/arch/xtensa/platforms/iss/simdisk.c
index f58ffc3b68a8..c0edb35424ce 100644
--- a/arch/xtensa/platforms/iss/simdisk.c
+++ b/arch/xtensa/platforms/iss/simdisk.c
@@ -85,7 +85,7 @@ static void simdisk_transfer(struct simdisk *dev, unsigned long sector,
while (nbytes > 0) {
unsigned long io;
- __simc(SYS_lseek, dev->fd, offset, SEEK_SET, 0, 0);
+ simc_lseek(dev->fd, offset, SEEK_SET);
if (write)
io = simc_write(dev->fd, buffer, nbytes);
else
@@ -139,13 +139,12 @@ static int simdisk_open(struct block_device *bdev, fmode_t mode)
return 0;
}
-static int simdisk_release(struct gendisk *disk, fmode_t mode)
+static void simdisk_release(struct gendisk *disk, fmode_t mode)
{
struct simdisk *dev = disk->private_data;
spin_lock(&dev->lock);
--dev->users;
spin_unlock(&dev->lock);
- return 0;
}
static const struct block_device_operations simdisk_ops = {
@@ -177,7 +176,7 @@ static int simdisk_attach(struct simdisk *dev, const char *filename)
err = -ENODEV;
goto out;
}
- dev->size = __simc(SYS_lseek, dev->fd, 0, SEEK_END, 0, 0);
+ dev->size = simc_lseek(dev->fd, 0, SEEK_END);
set_capacity(dev->gd, dev->size >> SECTOR_SHIFT);
dev->filename = filename;
pr_info("SIMDISK: %s=%s\n", dev->gd->disk_name, dev->filename);
@@ -214,25 +213,32 @@ static int simdisk_detach(struct simdisk *dev)
return err;
}
-static int proc_read_simdisk(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static ssize_t proc_read_simdisk(struct file *file, char __user *buf,
+ size_t size, loff_t *ppos)
{
- int len;
- struct simdisk *dev = (struct simdisk *) data;
- len = sprintf(page, "%s\n", dev->filename ? dev->filename : "");
- return len;
+ struct simdisk *dev = PDE_DATA(file_inode(file));
+ const char *s = dev->filename;
+ if (s) {
+ ssize_t n = simple_read_from_buffer(buf, size, ppos,
+ s, strlen(s));
+ if (n < 0)
+ return n;
+ buf += n;
+ size -= n;
+ }
+ return simple_read_from_buffer(buf, size, ppos, "\n", 1);
}
-static int proc_write_simdisk(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static ssize_t proc_write_simdisk(struct file *file, const char __user *buf,
+ size_t count, loff_t *ppos)
{
char *tmp = kmalloc(count + 1, GFP_KERNEL);
- struct simdisk *dev = (struct simdisk *) data;
+ struct simdisk *dev = PDE_DATA(file_inode(file));
int err;
if (tmp == NULL)
return -ENOMEM;
- if (copy_from_user(tmp, buffer, count)) {
+ if (copy_from_user(tmp, buf, count)) {
err = -EFAULT;
goto out_free;
}
@@ -256,6 +262,12 @@ out_free:
return err;
}
+static const struct file_operations fops = {
+ .read = proc_read_simdisk,
+ .write = proc_write_simdisk,
+ .llseek = default_llseek,
+};
+
static int __init simdisk_setup(struct simdisk *dev, int which,
struct proc_dir_entry *procdir)
{
@@ -289,10 +301,7 @@ static int __init simdisk_setup(struct simdisk *dev, int which,
set_capacity(dev->gd, 0);
add_disk(dev->gd);
- dev->procfile = create_proc_entry(tmp, 0644, procdir);
- dev->procfile->data = dev;
- dev->procfile->read_proc = proc_read_simdisk;
- dev->procfile->write_proc = proc_write_simdisk;
+ dev->procfile = proc_create_data(tmp, 0644, procdir, &fops, dev);
return 0;
out_alloc_disk:
diff --git a/arch/xtensa/platforms/xt2000/setup.c b/arch/xtensa/platforms/xt2000/setup.c
index c7d90f17886e..f9bc87966290 100644
--- a/arch/xtensa/platforms/xt2000/setup.c
+++ b/arch/xtensa/platforms/xt2000/setup.c
@@ -69,7 +69,9 @@ void platform_restart(void)
"wsr a2, icountlevel\n\t"
"movi a2, 0\n\t"
"wsr a2, icount\n\t"
+#if XCHAL_NUM_IBREAK > 0
"wsr a2, ibreakenable\n\t"
+#endif
"wsr a2, lcount\n\t"
"movi a2, 0x1f\n\t"
"wsr a2, ps\n\t"
diff --git a/arch/xtensa/platforms/xtfpga/setup.c b/arch/xtensa/platforms/xtfpga/setup.c
index 9d888a2a5755..96ef8eeb064e 100644
--- a/arch/xtensa/platforms/xtfpga/setup.c
+++ b/arch/xtensa/platforms/xtfpga/setup.c
@@ -60,7 +60,9 @@ void platform_restart(void)
"wsr a2, icountlevel\n\t"
"movi a2, 0\n\t"
"wsr a2, icount\n\t"
+#if XCHAL_NUM_IBREAK > 0
"wsr a2, ibreakenable\n\t"
+#endif
"wsr a2, lcount\n\t"
"movi a2, 0x1f\n\t"
"wsr a2, ps\n\t"
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-11 15:55:10 +0100