diff options
| author | Felix Blyakher <felixb@sgi.com> | 2009-02-03 09:51:52 -0600 |
|---|---|---|
| committer | Felix Blyakher <felixb@sgi.com> | 2009-02-03 09:51:52 -0600 |
| commit | ed7b44af3517441ba46b84da13773d24809ffdd3 (patch) | |
| tree | 7064703c5d63d44700085cd701703457730bc06e /arch/mips/kernel/traps.c | |
| parent | a1a1415e5ea2d2241df208a7777a4f38aba9ed5a (diff) | |
| parent | b1792e367053968f2ddb48bc911d314143ce6242 (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'arch/mips/kernel/traps.c')
| -rw-r--r-- | arch/mips/kernel/traps.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index f6083c6bfaa4..b2d7041341b8 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -944,6 +944,9 @@ asmlinkage void do_mdmx(struct pt_regs *regs) force_sig(SIGILL, current); } +/* + * Called with interrupts disabled. + */ asmlinkage void do_watch(struct pt_regs *regs) { u32 cause; @@ -963,9 +966,12 @@ asmlinkage void do_watch(struct pt_regs *regs) */ if (test_tsk_thread_flag(current, TIF_LOAD_WATCH)) { mips_read_watch_registers(); + local_irq_enable(); force_sig(SIGTRAP, current); - } else + } else { mips_clear_watch_registers(); + local_irq_enable(); + } } asmlinkage void do_mcheck(struct pt_regs *regs) @@ -1582,7 +1588,11 @@ void __init set_handler(unsigned long offset, void *addr, unsigned long size) static char panic_null_cerr[] __cpuinitdata = "Trying to set NULL cache error exception handler"; -/* Install uncached CPU exception handler */ +/* + * Install uncached CPU exception handler. + * This is suitable only for the cache error exception which is the only + * exception handler that is being run uncached. + */ void __cpuinit set_uncached_handler(unsigned long offset, void *addr, unsigned long size) { @@ -1593,7 +1603,7 @@ void __cpuinit set_uncached_handler(unsigned long offset, void *addr, unsigned long uncached_ebase = TO_UNCAC(ebase); #endif if (cpu_has_mips_r2) - ebase += (read_c0_ebase() & 0x3ffff000); + uncached_ebase += (read_c0_ebase() & 0x3ffff000); if (!addr) panic(panic_null_cerr); |