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Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/basler/excite/excite_iodev.c9
-rw-r--r--arch/mips/kernel/rtlx.c7
-rw-r--r--arch/mips/kernel/vpe.c12
-rw-r--r--arch/mips/mm/c-r3k.c6
-rw-r--r--arch/mips/mm/page.c61
-rw-r--r--arch/mips/mm/sc-rm7k.c4
-rw-r--r--arch/mips/sibyte/common/sb_tbprof.c25
7 files changed, 78 insertions, 46 deletions
diff --git a/arch/mips/basler/excite/excite_iodev.c b/arch/mips/basler/excite/excite_iodev.c
index 476d20e08d0..a1e3526b4a9 100644
--- a/arch/mips/basler/excite/excite_iodev.c
+++ b/arch/mips/basler/excite/excite_iodev.c
@@ -26,6 +26,7 @@
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/miscdevice.h>
+#include <linux/smp_lock.h>
#include "excite_iodev.h"
@@ -110,8 +111,14 @@ static int __exit iodev_remove(struct device *dev)
static int iodev_open(struct inode *i, struct file *f)
{
- return request_irq(iodev_irq, iodev_irqhdl, IRQF_DISABLED,
+ int ret;
+
+ lock_kernel();
+ ret = request_irq(iodev_irq, iodev_irqhdl, IRQF_DISABLED,
iodev_name, &miscdev);
+ unlock_kernel();
+
+ return ret;
}
static int iodev_release(struct inode *i, struct file *f)
diff --git a/arch/mips/kernel/rtlx.c b/arch/mips/kernel/rtlx.c
index b88f1c18ff4..b5564196123 100644
--- a/arch/mips/kernel/rtlx.c
+++ b/arch/mips/kernel/rtlx.c
@@ -28,6 +28,7 @@
#include <linux/vmalloc.h>
#include <linux/elf.h>
#include <linux/seq_file.h>
+#include <linux/smp_lock.h>
#include <linux/syscalls.h>
#include <linux/moduleloader.h>
#include <linux/interrupt.h>
@@ -392,8 +393,12 @@ out:
static int file_open(struct inode *inode, struct file *filp)
{
int minor = iminor(inode);
+ int err;
- return rtlx_open(minor, (filp->f_flags & O_NONBLOCK) ? 0 : 1);
+ lock_kernel();
+ err = rtlx_open(minor, (filp->f_flags & O_NONBLOCK) ? 0 : 1);
+ unlock_kernel();
+ return err;
}
static int file_release(struct inode *inode, struct file *filp)
diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c
index 2794501ff30..972b2d2b840 100644
--- a/arch/mips/kernel/vpe.c
+++ b/arch/mips/kernel/vpe.c
@@ -38,6 +38,7 @@
#include <linux/vmalloc.h>
#include <linux/elf.h>
#include <linux/seq_file.h>
+#include <linux/smp_lock.h>
#include <linux/syscalls.h>
#include <linux/moduleloader.h>
#include <linux/interrupt.h>
@@ -1050,17 +1051,20 @@ static int vpe_open(struct inode *inode, struct file *filp)
enum vpe_state state;
struct vpe_notifications *not;
struct vpe *v;
- int ret;
+ int ret, err = 0;
+ lock_kernel();
if (minor != iminor(inode)) {
/* assume only 1 device at the moment. */
printk(KERN_WARNING "VPE loader: only vpe1 is supported\n");
- return -ENODEV;
+ err = -ENODEV;
+ goto out;
}
if ((v = get_vpe(tclimit)) == NULL) {
printk(KERN_WARNING "VPE loader: unable to get vpe\n");
- return -ENODEV;
+ err = -ENODEV;
+ goto out;
}
state = xchg(&v->state, VPE_STATE_INUSE);
@@ -1100,6 +1104,8 @@ static int vpe_open(struct inode *inode, struct file *filp)
v->shared_ptr = NULL;
v->__start = 0;
+out:
+ unlock_kernel();
return 0;
}
diff --git a/arch/mips/mm/c-r3k.c b/arch/mips/mm/c-r3k.c
index 76935e32021..27a5b466c85 100644
--- a/arch/mips/mm/c-r3k.c
+++ b/arch/mips/mm/c-r3k.c
@@ -26,7 +26,7 @@
static unsigned long icache_size, dcache_size; /* Size in bytes */
static unsigned long icache_lsize, dcache_lsize; /* Size in bytes */
-unsigned long __init r3k_cache_size(unsigned long ca_flags)
+unsigned long __cpuinit r3k_cache_size(unsigned long ca_flags)
{
unsigned long flags, status, dummy, size;
volatile unsigned long *p;
@@ -61,7 +61,7 @@ unsigned long __init r3k_cache_size(unsigned long ca_flags)
return size * sizeof(*p);
}
-unsigned long __init r3k_cache_lsize(unsigned long ca_flags)
+unsigned long __cpuinit r3k_cache_lsize(unsigned long ca_flags)
{
unsigned long flags, status, lsize, i;
volatile unsigned long *p;
@@ -90,7 +90,7 @@ unsigned long __init r3k_cache_lsize(unsigned long ca_flags)
return lsize * sizeof(*p);
}
-static void __init r3k_probe_cache(void)
+static void __cpuinit r3k_probe_cache(void)
{
dcache_size = r3k_cache_size(ST0_ISC);
if (dcache_size)
diff --git a/arch/mips/mm/page.c b/arch/mips/mm/page.c
index 1edf0cbbeed..1417c649485 100644
--- a/arch/mips/mm/page.c
+++ b/arch/mips/mm/page.c
@@ -235,13 +235,12 @@ static void __cpuinit set_prefetch_parameters(void)
}
/*
* Too much unrolling will overflow the available space in
- * clear_space_array / copy_page_array. 8 words sounds generous,
- * but a R4000 with 128 byte L2 line length can exceed even that.
+ * clear_space_array / copy_page_array.
*/
- half_clear_loop_size = min(8 * clear_word_size,
+ half_clear_loop_size = min(16 * clear_word_size,
max(cache_line_size >> 1,
4 * clear_word_size));
- half_copy_loop_size = min(8 * copy_word_size,
+ half_copy_loop_size = min(16 * copy_word_size,
max(cache_line_size >> 1,
4 * copy_word_size));
}
@@ -263,21 +262,23 @@ static inline void __cpuinit build_clear_pref(u32 **buf, int off)
if (pref_bias_clear_store) {
uasm_i_pref(buf, pref_dst_mode, pref_bias_clear_store + off,
A0);
- } else if (cpu_has_cache_cdex_s) {
- uasm_i_cache(buf, Create_Dirty_Excl_SD, off, A0);
- } else if (cpu_has_cache_cdex_p) {
- if (R4600_V1_HIT_CACHEOP_WAR && cpu_is_r4600_v1_x()) {
- uasm_i_nop(buf);
- uasm_i_nop(buf);
- uasm_i_nop(buf);
- uasm_i_nop(buf);
- }
+ } else if (cache_line_size == (half_clear_loop_size << 1)) {
+ if (cpu_has_cache_cdex_s) {
+ uasm_i_cache(buf, Create_Dirty_Excl_SD, off, A0);
+ } else if (cpu_has_cache_cdex_p) {
+ if (R4600_V1_HIT_CACHEOP_WAR && cpu_is_r4600_v1_x()) {
+ uasm_i_nop(buf);
+ uasm_i_nop(buf);
+ uasm_i_nop(buf);
+ uasm_i_nop(buf);
+ }
- if (R4600_V2_HIT_CACHEOP_WAR && cpu_is_r4600_v2_x())
- uasm_i_lw(buf, ZERO, ZERO, AT);
+ if (R4600_V2_HIT_CACHEOP_WAR && cpu_is_r4600_v2_x())
+ uasm_i_lw(buf, ZERO, ZERO, AT);
- uasm_i_cache(buf, Create_Dirty_Excl_D, off, A0);
- }
+ uasm_i_cache(buf, Create_Dirty_Excl_D, off, A0);
+ }
+ }
}
void __cpuinit build_clear_page(void)
@@ -403,20 +404,22 @@ static inline void build_copy_store_pref(u32 **buf, int off)
if (pref_bias_copy_store) {
uasm_i_pref(buf, pref_dst_mode, pref_bias_copy_store + off,
A0);
- } else if (cpu_has_cache_cdex_s) {
- uasm_i_cache(buf, Create_Dirty_Excl_SD, off, A0);
- } else if (cpu_has_cache_cdex_p) {
- if (R4600_V1_HIT_CACHEOP_WAR && cpu_is_r4600_v1_x()) {
- uasm_i_nop(buf);
- uasm_i_nop(buf);
- uasm_i_nop(buf);
- uasm_i_nop(buf);
- }
+ } else if (cache_line_size == (half_copy_loop_size << 1)) {
+ if (cpu_has_cache_cdex_s) {
+ uasm_i_cache(buf, Create_Dirty_Excl_SD, off, A0);
+ } else if (cpu_has_cache_cdex_p) {
+ if (R4600_V1_HIT_CACHEOP_WAR && cpu_is_r4600_v1_x()) {
+ uasm_i_nop(buf);
+ uasm_i_nop(buf);
+ uasm_i_nop(buf);
+ uasm_i_nop(buf);
+ }
- if (R4600_V2_HIT_CACHEOP_WAR && cpu_is_r4600_v2_x())
- uasm_i_lw(buf, ZERO, ZERO, AT);
+ if (R4600_V2_HIT_CACHEOP_WAR && cpu_is_r4600_v2_x())
+ uasm_i_lw(buf, ZERO, ZERO, AT);
- uasm_i_cache(buf, Create_Dirty_Excl_D, off, A0);
+ uasm_i_cache(buf, Create_Dirty_Excl_D, off, A0);
+ }
}
}
diff --git a/arch/mips/mm/sc-rm7k.c b/arch/mips/mm/sc-rm7k.c
index fc227f3b119..e3abfb2d7e8 100644
--- a/arch/mips/mm/sc-rm7k.c
+++ b/arch/mips/mm/sc-rm7k.c
@@ -86,7 +86,7 @@ static void rm7k_sc_inv(unsigned long addr, unsigned long size)
/*
* This function is executed in uncached address space.
*/
-static __init void __rm7k_sc_enable(void)
+static __cpuinit void __rm7k_sc_enable(void)
{
int i;
@@ -107,7 +107,7 @@ static __init void __rm7k_sc_enable(void)
}
}
-static __init void rm7k_sc_enable(void)
+static __cpuinit void rm7k_sc_enable(void)
{
if (read_c0_config() & RM7K_CONF_SE)
return;
diff --git a/arch/mips/sibyte/common/sb_tbprof.c b/arch/mips/sibyte/common/sb_tbprof.c
index 63b444eaf01..28b012ab8dc 100644
--- a/arch/mips/sibyte/common/sb_tbprof.c
+++ b/arch/mips/sibyte/common/sb_tbprof.c
@@ -28,6 +28,7 @@
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
+#include <linux/smp_lock.h>
#include <linux/vmalloc.h>
#include <linux/fs.h>
#include <linux/errno.h>
@@ -402,18 +403,26 @@ static int sbprof_zbprof_stop(void)
static int sbprof_tb_open(struct inode *inode, struct file *filp)
{
int minor;
+ int err = 0;
+ lock_kernel();
minor = iminor(inode);
- if (minor != 0)
- return -ENODEV;
+ if (minor != 0) {
+ err = -ENODEV;
+ goto out;
+ }
- if (xchg(&sbp.open, SB_OPENING) != SB_CLOSED)
- return -EBUSY;
+ if (xchg(&sbp.open, SB_OPENING) != SB_CLOSED) {
+ err = -EBUSY;
+ goto out;
+ }
memset(&sbp, 0, sizeof(struct sbprof_tb));
sbp.sbprof_tbbuf = vmalloc(MAX_TBSAMPLE_BYTES);
- if (!sbp.sbprof_tbbuf)
- return -ENOMEM;
+ if (!sbp.sbprof_tbbuf) {
+ err = -ENOMEM;
+ goto out;
+ }
memset(sbp.sbprof_tbbuf, 0, MAX_TBSAMPLE_BYTES);
init_waitqueue_head(&sbp.tb_sync);
init_waitqueue_head(&sbp.tb_read);
@@ -421,7 +430,9 @@ static int sbprof_tb_open(struct inode *inode, struct file *filp)
sbp.open = SB_OPEN;
- return 0;
+ out:
+ unlock_kernel();
+ return err;
}
static int sbprof_tb_release(struct inode *inode, struct file *filp)
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-22 15:37:10 +0000