From 15dfdddbf0c2be680d5d2fe2bbe3aad3dba3cf0e Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Sun, 18 Oct 2009 15:13:28 +0900 Subject: sh: Disable SCIF2 on the SH-X3 proto CPU. SCIF2 and the FPU exceptions happen to share vector numbers, one in EXPEVT and the other in INTEVT. This is a violation of the interface and should have never made it in to silicon. On top of that, the demux hack that was added for special dispatch is rather error prone, and introduces more problems than it solves. Kill all of it off, and just refuse to deal with SCIF2 outright. Signed-off-by: Paul Mundt --- arch/sh/kernel/traps_32.c | 5 ----- 1 file changed, 5 deletions(-) (limited to 'arch/sh/kernel/traps_32.c') diff --git a/arch/sh/kernel/traps_32.c b/arch/sh/kernel/traps_32.c index 7a2ee3a6b8e..114d2176182 100644 --- a/arch/sh/kernel/traps_32.c +++ b/arch/sh/kernel/traps_32.c @@ -945,14 +945,9 @@ void __init trap_init(void) set_exception_table_evt(0x800, do_reserved_inst); set_exception_table_evt(0x820, do_illegal_slot_inst); #elif defined(CONFIG_SH_FPU) -#ifdef CONFIG_CPU_SUBTYPE_SHX3 - set_exception_table_evt(0xd80, fpu_state_restore_trap_handler); - set_exception_table_evt(0xda0, fpu_state_restore_trap_handler); -#else set_exception_table_evt(0x800, fpu_state_restore_trap_handler); set_exception_table_evt(0x820, fpu_state_restore_trap_handler); #endif -#endif #ifdef CONFIG_CPU_SH2 set_exception_table_vec(TRAP_ADDRESS_ERROR, address_error_trap_handler); -- cgit v1.2.3-70-g09d2 From 9a1607071c293e48b08bd703733480b1d55c7b93 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Fri, 27 Nov 2009 06:42:16 +0000 Subject: sh: convert /proc/cpu/aligmnent, /proc/cpu/kernel_alignment to seq_file Signed-off-by: Alexey Dobriyan Signed-off-by: Paul Mundt --- arch/sh/kernel/traps_32.c | 77 +++++++++++++++++++---------------------------- 1 file changed, 31 insertions(+), 46 deletions(-) (limited to 'arch/sh/kernel/traps_32.c') diff --git a/arch/sh/kernel/traps_32.c b/arch/sh/kernel/traps_32.c index 114d2176182..3da5a125d88 100644 --- a/arch/sh/kernel/traps_32.c +++ b/arch/sh/kernel/traps_32.c @@ -25,6 +25,7 @@ #include #include #include +#include #include #include #include @@ -68,61 +69,49 @@ static const char *se_usermode_action[] = { "signal+warn" }; -static int -proc_alignment_read(char *page, char **start, off_t off, int count, int *eof, - void *data) +static int alignment_proc_show(struct seq_file *m, void *v) { - char *p = page; - int len; - - p += sprintf(p, "User:\t\t%lu\n", se_user); - p += sprintf(p, "System:\t\t%lu\n", se_sys); - p += sprintf(p, "Half:\t\t%lu\n", se_half); - p += sprintf(p, "Word:\t\t%lu\n", se_word); - p += sprintf(p, "DWord:\t\t%lu\n", se_dword); - p += sprintf(p, "Multi:\t\t%lu\n", se_multi); - p += sprintf(p, "User faults:\t%i (%s)\n", se_usermode, + seq_printf(m, "User:\t\t%lu\n", se_user); + seq_printf(m, "System:\t\t%lu\n", se_sys); + seq_printf(m, "Half:\t\t%lu\n", se_half); + seq_printf(m, "Word:\t\t%lu\n", se_word); + seq_printf(m, "DWord:\t\t%lu\n", se_dword); + seq_printf(m, "Multi:\t\t%lu\n", se_multi); + seq_printf(m, "User faults:\t%i (%s)\n", se_usermode, se_usermode_action[se_usermode]); - p += sprintf(p, "Kernel faults:\t%i (fixup%s)\n", se_kernmode_warn, + seq_printf(m, "Kernel faults:\t%i (fixup%s)\n", se_kernmode_warn, se_kernmode_warn ? "+warn" : ""); - - len = (p - page) - off; - if (len < 0) - len = 0; - - *eof = (len <= count) ? 1 : 0; - *start = page + off; - - return len; + return 0; } -static int proc_alignment_write(struct file *file, const char __user *buffer, - unsigned long count, void *data) +static int alignment_proc_open(struct inode *inode, struct file *file) { - char mode; - - if (count > 0) { - if (get_user(mode, buffer)) - return -EFAULT; - if (mode >= '0' && mode <= '5') - se_usermode = mode - '0'; - } - return count; + return single_open(file, alignment_proc_show, NULL); } -static int proc_alignment_kern_write(struct file *file, const char __user *buffer, - unsigned long count, void *data) +static ssize_t alignment_proc_write(struct file *file, + const char __user *buffer, size_t count, loff_t *pos) { + int *data = PDE(file->f_path.dentry->d_inode)->data; char mode; if (count > 0) { if (get_user(mode, buffer)) return -EFAULT; - if (mode >= '0' && mode <= '1') - se_kernmode_warn = mode - '0'; + if (mode >= '0' && mode <= '5') + *data = mode - '0'; } return count; } + +static const struct file_operations alignment_proc_fops = { + .owner = THIS_MODULE, + .open = alignment_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .write = alignment_proc_write, +}; #endif static void dump_mem(const char *str, unsigned long bottom, unsigned long top) @@ -1006,20 +995,16 @@ static int __init alignment_init(void) if (!dir) return -ENOMEM; - res = create_proc_entry("alignment", S_IWUSR | S_IRUGO, dir); + res = proc_create_data("alignment", S_IWUSR | S_IRUGO, dir, + &alignment_proc_fops, &se_usermode); if (!res) return -ENOMEM; - res->read_proc = proc_alignment_read; - res->write_proc = proc_alignment_write; - - res = create_proc_entry("kernel_alignment", S_IWUSR | S_IRUGO, dir); + res = proc_create_data("kernel_alignment", S_IWUSR | S_IRUGO, dir, + &alignment_proc_fops, &se_kernmode_warn); if (!res) return -ENOMEM; - res->read_proc = proc_alignment_read; - res->write_proc = proc_alignment_kern_write; - return 0; } -- cgit v1.2.3-70-g09d2