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-rw-r--r--arch/xtensa/Kconfig3
-rw-r--r--arch/xtensa/configs/iss_defconfig1
-rw-r--r--arch/xtensa/configs/s6105_defconfig1
-rw-r--r--arch/xtensa/include/asm/unistd.h8
-rw-r--r--arch/xtensa/include/uapi/asm/socket.h2
-rw-r--r--arch/xtensa/kernel/process.c14
-rw-r--r--arch/xtensa/kernel/traps.c10
-rw-r--r--arch/xtensa/mm/init.c21
-rw-r--r--arch/xtensa/platforms/iss/simdisk.c41
9 files changed, 34 insertions, 67 deletions
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index a065da819f8..0a1b95f81a3 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -31,9 +31,6 @@ config RWSEM_XCHGADD_ALGORITHM
config GENERIC_HWEIGHT
def_bool y
-config GENERIC_GPIO
- bool
-
config ARCH_HAS_ILOG2_U32
def_bool n
diff --git a/arch/xtensa/configs/iss_defconfig b/arch/xtensa/configs/iss_defconfig
index ddab37b2474..77c52f80187 100644
--- a/arch/xtensa/configs/iss_defconfig
+++ b/arch/xtensa/configs/iss_defconfig
@@ -10,7 +10,6 @@ CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_HARDIRQS=y
-CONFIG_GENERIC_GPIO=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_NO_IOPORT=y
diff --git a/arch/xtensa/configs/s6105_defconfig b/arch/xtensa/configs/s6105_defconfig
index eaf1b8fc655..4799c6a526b 100644
--- a/arch/xtensa/configs/s6105_defconfig
+++ b/arch/xtensa/configs/s6105_defconfig
@@ -10,7 +10,6 @@ CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_HARDIRQS=y
-CONFIG_GENERIC_GPIO=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_NO_IOPORT=y
diff --git a/arch/xtensa/include/asm/unistd.h b/arch/xtensa/include/asm/unistd.h
index c38834de9ac..cb4c2ce8d44 100644
--- a/arch/xtensa/include/asm/unistd.h
+++ b/arch/xtensa/include/asm/unistd.h
@@ -4,14 +4,6 @@
#define __ARCH_WANT_SYS_CLONE
#include <uapi/asm/unistd.h>
-/*
- * "Conditional" syscalls
- *
- * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
- * but it doesn't work on all toolchains, so we just do it by hand
- */
-#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall");
-
#define __ARCH_WANT_STAT64
#define __ARCH_WANT_SYS_UTIME
#define __ARCH_WANT_SYS_LLSEEK
diff --git a/arch/xtensa/include/uapi/asm/socket.h b/arch/xtensa/include/uapi/asm/socket.h
index 35905cb6e41..a8f44f50e65 100644
--- a/arch/xtensa/include/uapi/asm/socket.h
+++ b/arch/xtensa/include/uapi/asm/socket.h
@@ -83,4 +83,6 @@
#define SO_LOCK_FILTER 44
+#define SO_SELECT_ERR_QUEUE 45
+
#endif /* _XTENSA_SOCKET_H */
diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c
index 5cd82e9f601..1c85323f01d 100644
--- a/arch/xtensa/kernel/process.c
+++ b/arch/xtensa/kernel/process.c
@@ -105,19 +105,9 @@ void coprocessor_flush_all(struct thread_info *ti)
/*
* Powermanagement idle function, if any is provided by the platform.
*/
-
-void cpu_idle(void)
+void arch_cpu_idle(void)
{
- local_irq_enable();
-
- /* endless idle loop with no priority at all */
- while (1) {
- rcu_idle_enter();
- while (!need_resched())
- platform_idle();
- rcu_idle_exit();
- schedule_preempt_disabled();
- }
+ platform_idle();
}
/*
diff --git a/arch/xtensa/kernel/traps.c b/arch/xtensa/kernel/traps.c
index 30e53e60910..3e8a05c874c 100644
--- a/arch/xtensa/kernel/traps.c
+++ b/arch/xtensa/kernel/traps.c
@@ -386,6 +386,8 @@ void show_regs(struct pt_regs * regs)
{
int i, wmask;
+ show_regs_print_info(KERN_DEFAULT);
+
wmask = regs->wmask & ~1;
for (i = 0; i < 16; i++) {
@@ -456,14 +458,6 @@ void show_stack(struct task_struct *task, unsigned long *sp)
show_trace(task, stack);
}
-void dump_stack(void)
-{
- show_stack(current, NULL);
-}
-
-EXPORT_SYMBOL(dump_stack);
-
-
void show_code(unsigned int *pc)
{
long i;
diff --git a/arch/xtensa/mm/init.c b/arch/xtensa/mm/init.c
index 7a5156ffebb..bba125b4bb0 100644
--- a/arch/xtensa/mm/init.c
+++ b/arch/xtensa/mm/init.c
@@ -208,32 +208,17 @@ void __init mem_init(void)
highmemsize >> 10);
}
-void
-free_reserved_mem(void *start, void *end)
-{
- for (; start < end; start += PAGE_SIZE) {
- ClearPageReserved(virt_to_page(start));
- init_page_count(virt_to_page(start));
- free_page((unsigned long)start);
- totalram_pages++;
- }
-}
-
#ifdef CONFIG_BLK_DEV_INITRD
extern int initrd_is_mapped;
void free_initrd_mem(unsigned long start, unsigned long end)
{
- if (initrd_is_mapped) {
- free_reserved_mem((void*)start, (void*)end);
- printk ("Freeing initrd memory: %ldk freed\n",(end-start)>>10);
- }
+ if (initrd_is_mapped)
+ free_reserved_area(start, end, 0, "initrd");
}
#endif
void free_initmem(void)
{
- free_reserved_mem(__init_begin, __init_end);
- printk("Freeing unused kernel memory: %zuk freed\n",
- (__init_end - __init_begin) >> 10);
+ free_initmem_default(0);
}
diff --git a/arch/xtensa/platforms/iss/simdisk.c b/arch/xtensa/platforms/iss/simdisk.c
index 74f86fbab74..c0edb35424c 100644
--- a/arch/xtensa/platforms/iss/simdisk.c
+++ b/arch/xtensa/platforms/iss/simdisk.c
@@ -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 = {
@@ -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:
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-21 22:14:00 +0000