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author | Grant Likely <grant.likely@secretlab.ca> | 2011-04-07 11:15:50 -0700 |
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committer | Grant Likely <grant.likely@secretlab.ca> | 2011-04-07 11:15:50 -0700 |
commit | 454abcc57f1d48a976291bc4af73b5f087e21d70 (patch) | |
tree | 5bba999ea3f31527da02b60604531cc5fb52ea57 /arch/microblaze/kernel/ftrace.c | |
parent | 88aab9341a315d81118be6b41c45e4fe32b94bc1 (diff) | |
parent | 6221f222c0ebf1acdf7abcf927178f40e1a65e2a (diff) | |
download | kernel_samsung_smdk4412-454abcc57f1d48a976291bc4af73b5f087e21d70.zip kernel_samsung_smdk4412-454abcc57f1d48a976291bc4af73b5f087e21d70.tar.gz kernel_samsung_smdk4412-454abcc57f1d48a976291bc4af73b5f087e21d70.tar.bz2 |
Merge commit 'v2.6.39-rc2' into spi/merge
Diffstat (limited to 'arch/microblaze/kernel/ftrace.c')
-rw-r--r-- | arch/microblaze/kernel/ftrace.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/microblaze/kernel/ftrace.c b/arch/microblaze/kernel/ftrace.c index 515feb4..357d56a 100644 --- a/arch/microblaze/kernel/ftrace.c +++ b/arch/microblaze/kernel/ftrace.c @@ -51,6 +51,9 @@ void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr) : "r" (parent), "r" (return_hooker) ); + flush_dcache_range((u32)parent, (u32)parent + 4); + flush_icache_range((u32)parent, (u32)parent + 4); + if (unlikely(faulted)) { ftrace_graph_stop(); WARN_ON(1); @@ -95,6 +98,9 @@ static int ftrace_modify_code(unsigned long addr, unsigned int value) if (unlikely(faulted)) return -EFAULT; + flush_dcache_range(addr, addr + 4); + flush_icache_range(addr, addr + 4); + return 0; } @@ -195,8 +201,6 @@ int ftrace_update_ftrace_func(ftrace_func_t func) ret += ftrace_modify_code((unsigned long)&ftrace_caller, MICROBLAZE_NOP); - /* All changes are done - lets do caches consistent */ - flush_icache(); return ret; } @@ -210,7 +214,6 @@ int ftrace_enable_ftrace_graph_caller(void) old_jump = *(unsigned int *)ip; /* save jump over instruction */ ret = ftrace_modify_code(ip, MICROBLAZE_NOP); - flush_icache(); pr_debug("%s: Replace instruction: 0x%x\n", __func__, old_jump); return ret; @@ -222,7 +225,6 @@ int ftrace_disable_ftrace_graph_caller(void) unsigned long ip = (unsigned long)(&ftrace_call_graph); ret = ftrace_modify_code(ip, old_jump); - flush_icache(); pr_debug("%s\n", __func__); return ret; |