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| author | Catalin Marinas <catalin.marinas@arm.com> | 2011-04-06 19:16:29 +0400 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-04-11 00:13:36 +0400 |
| commit | 2e82669acf03e5bf2080f5d3ef005168e67d8a51 (patch) | |
| tree | 996ff5ce7127725a0b8ddeeb74731d6bb7288cdc /arch/arm/vfp/vfpmodule.c | |
| parent | 974508262e94b567f9d5b7ba1eef9fc493561f63 (diff) | |
| download | linux-2e82669acf03e5bf2080f5d3ef005168e67d8a51.tar.xz | |
ARM: 6867/1: Introduce THREAD_NOTIFY_COPY for copy_thread() hooks
This patch adds THREAD_NOTIFY_COPY for calling registered handlers
during the copy_thread() function call. It also changes the VFP handler
to use a switch statement rather than if..else and ignore this event.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/vfp/vfpmodule.c')
| -rw-r--r-- | arch/arm/vfp/vfpmodule.c | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c index bbf3da012afd..1c88bbdfd34d 100644 --- a/arch/arm/vfp/vfpmodule.c +++ b/arch/arm/vfp/vfpmodule.c @@ -104,12 +104,17 @@ static void vfp_thread_exit(struct thread_info *thread) static int vfp_notifier(struct notifier_block *self, unsigned long cmd, void *v) { struct thread_info *thread = v; + u32 fpexc; +#ifdef CONFIG_SMP + unsigned int cpu; +#endif - if (likely(cmd == THREAD_NOTIFY_SWITCH)) { - u32 fpexc = fmrx(FPEXC); + switch (cmd) { + case THREAD_NOTIFY_SWITCH: + fpexc = fmrx(FPEXC); #ifdef CONFIG_SMP - unsigned int cpu = thread->cpu; + cpu = thread->cpu; /* * On SMP, if VFP is enabled, save the old state in @@ -134,13 +139,16 @@ static int vfp_notifier(struct notifier_block *self, unsigned long cmd, void *v) * old state. */ fmxr(FPEXC, fpexc & ~FPEXC_EN); - return NOTIFY_DONE; - } + break; - if (cmd == THREAD_NOTIFY_FLUSH) + case THREAD_NOTIFY_FLUSH: vfp_thread_flush(thread); - else + break; + + case THREAD_NOTIFY_EXIT: vfp_thread_exit(thread); + break; + } return NOTIFY_DONE; } |