diff options
author | Ingo Molnar <mingo@elte.hu> | 2008-07-15 13:45:59 +0200 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2008-07-15 13:45:59 +0200 |
commit | 91d0322bef047e2916b3e52741411bffc63929cb (patch) | |
tree | 44c4fd13cc17755a6db8a3d70cffb86e57a838dc /arch/mips | |
parent | 065cb3dfe24978651caedfa54da585388ad15dde (diff) | |
parent | 50515af207d410c9f228380e529c56f43c3de0bd (diff) |
Merge branch 'linus' into x86/urgent
Diffstat (limited to 'arch/mips')
-rw-r--r-- | arch/mips/basler/excite/excite_iodev.c | 9 | ||||
-rw-r--r-- | arch/mips/kernel/rtlx.c | 7 | ||||
-rw-r--r-- | arch/mips/kernel/vpe.c | 12 | ||||
-rw-r--r-- | arch/mips/mm/c-r3k.c | 6 | ||||
-rw-r--r-- | arch/mips/mm/page.c | 61 | ||||
-rw-r--r-- | arch/mips/mm/sc-rm7k.c | 4 | ||||
-rw-r--r-- | arch/mips/sibyte/common/sb_tbprof.c | 25 |
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) |