Commit ab4ed677 authored by Linus Torvalds's avatar Linus Torvalds

Merge branch 'sh/for-2.6.32' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6

* 'sh/for-2.6.32' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
  sh: Kill off stray HAVE_FTRACE_SYSCALLS reference.
  sh: Remove BKL from landisk gio.
  sh: disabled cache handling fix.
  sh: Fix up single page flushing to use PAGE_SIZE.
parents 4fe71dba f875295c
......@@ -37,7 +37,6 @@ config SUPERH32
select HAVE_FTRACE_MCOUNT_RECORD
select HAVE_DYNAMIC_FTRACE
select HAVE_FUNCTION_TRACE_MCOUNT_TEST
select HAVE_FTRACE_SYSCALLS
select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_ARCH_KGDB
select ARCH_HIBERNATION_POSSIBLE if MMU
......
......@@ -14,7 +14,6 @@
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/smp_lock.h>
#include <linux/kdev_t.h>
#include <linux/cdev.h>
#include <linux/fs.h>
......@@ -35,7 +34,7 @@ static int gio_open(struct inode *inode, struct file *filp)
int minor;
int ret = -ENOENT;
lock_kernel();
preempt_disable();
minor = MINOR(inode->i_rdev);
if (minor < DEVCOUNT) {
if (openCnt > 0) {
......@@ -45,7 +44,7 @@ static int gio_open(struct inode *inode, struct file *filp)
ret = 0;
}
}
unlock_kernel();
preempt_enable();
return ret;
}
......@@ -60,8 +59,7 @@ static int gio_close(struct inode *inode, struct file *filp)
return 0;
}
static int gio_ioctl(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
static long gio_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
unsigned int data;
static unsigned int addr = 0;
......@@ -129,7 +127,7 @@ static const struct file_operations gio_fops = {
.owner = THIS_MODULE,
.open = gio_open, /* open */
.release = gio_close, /* release */
.ioctl = gio_ioctl, /* ioctl */
.unlocked_ioctl = gio_ioctl,
};
static int __init gio_init(void)
......
......@@ -26,7 +26,7 @@
#define MAX_DCACHE_PAGES 64 /* XXX: Tune for ways */
#define MAX_ICACHE_PAGES 32
static void __flush_cache_4096(unsigned long addr, unsigned long phys,
static void __flush_cache_one(unsigned long addr, unsigned long phys,
unsigned long exec_offset);
/*
......@@ -89,8 +89,7 @@ static void __uses_jump_to_uncached sh4_flush_icache_range(void *args)
local_irq_restore(flags);
}
static inline void flush_cache_4096(unsigned long start,
unsigned long phys)
static inline void flush_cache_one(unsigned long start, unsigned long phys)
{
unsigned long flags, exec_offset = 0;
......@@ -103,8 +102,7 @@ static inline void flush_cache_4096(unsigned long start,
exec_offset = 0x20000000;
local_irq_save(flags);
__flush_cache_4096(start | SH_CACHE_ASSOC,
P1SEGADDR(phys), exec_offset);
__flush_cache_one(start | SH_CACHE_ASSOC, P1SEGADDR(phys), exec_offset);
local_irq_restore(flags);
}
......@@ -129,8 +127,8 @@ static void sh4_flush_dcache_page(void *arg)
/* Loop all the D-cache */
n = boot_cpu_data.dcache.n_aliases;
for (i = 0; i < n; i++, addr += 4096)
flush_cache_4096(addr, phys);
for (i = 0; i < n; i++, addr += PAGE_SIZE)
flush_cache_one(addr, phys);
}
wmb();
......@@ -318,11 +316,11 @@ static void sh4_flush_cache_page(void *args)
/* We only need to flush D-cache when we have alias */
if ((address^phys) & alias_mask) {
/* Loop 4K of the D-cache */
flush_cache_4096(
flush_cache_one(
CACHE_OC_ADDRESS_ARRAY | (address & alias_mask),
phys);
/* Loop another 4K of the D-cache */
flush_cache_4096(
flush_cache_one(
CACHE_OC_ADDRESS_ARRAY | (phys & alias_mask),
phys);
}
......@@ -337,7 +335,7 @@ static void sh4_flush_cache_page(void *args)
* kernel has never executed the code through its identity
* translation.
*/
flush_cache_4096(
flush_cache_one(
CACHE_IC_ADDRESS_ARRAY | (address & alias_mask),
phys);
}
......@@ -393,7 +391,7 @@ static void sh4_flush_cache_range(void *args)
}
/**
* __flush_cache_4096
* __flush_cache_one
*
* @addr: address in memory mapped cache array
* @phys: P1 address to flush (has to match tags if addr has 'A' bit
......@@ -406,7 +404,7 @@ static void sh4_flush_cache_range(void *args)
* operation (purge/write-back) is selected by the lower 2 bits of
* 'phys'.
*/
static void __flush_cache_4096(unsigned long addr, unsigned long phys,
static void __flush_cache_one(unsigned long addr, unsigned long phys,
unsigned long exec_offset)
{
int way_count;
......
......@@ -265,6 +265,8 @@ static void __init emit_cache_params(void)
void __init cpu_cache_init(void)
{
unsigned int cache_disabled = !(__raw_readl(CCR) & CCR_CACHE_ENABLE);
compute_alias(&boot_cpu_data.icache);
compute_alias(&boot_cpu_data.dcache);
compute_alias(&boot_cpu_data.scache);
......@@ -273,6 +275,13 @@ void __init cpu_cache_init(void)
__flush_purge_region = noop__flush_region;
__flush_invalidate_region = noop__flush_region;
/*
* No flushing is necessary in the disabled cache case so we can
* just keep the noop functions in local_flush_..() and __flush_..()
*/
if (unlikely(cache_disabled))
goto skip;
if (boot_cpu_data.family == CPU_FAMILY_SH2) {
extern void __weak sh2_cache_init(void);
......@@ -312,5 +321,6 @@ void __init cpu_cache_init(void)
sh5_cache_init();
}
skip:
emit_cache_params();
}
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