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| author | David S. Miller <davem@davemloft.net> | 2010-03-03 16:08:49 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-03-03 16:08:49 (GMT) |
| commit | c7d5a0050773e98d1094eaa9f2a1a793fafac300 (patch) | |
| tree | 9836ff13aabf0990d5f235f24c90b5ef5cd8ae71 /arch/sparc/include/asm/system_64.h | |
| parent | 6c5ae5b278e29c1a23fd562e1a5276c2e2ea1738 (diff) | |
| download | linux-fsl-qoriq-c7d5a0050773e98d1094eaa9f2a1a793fafac300.tar.xz | |
sparc64: Kill off old sys_perfctr system call and state.
People should be using the perf events interfaces, and
the way these system call facilities used the %pcr conflicts
with the usage of the NMI watchdog and perf events.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/include/asm/system_64.h')
| -rw-r--r-- | arch/sparc/include/asm/system_64.h | 15 |
1 files changed, 1 insertions, 14 deletions
diff --git a/arch/sparc/include/asm/system_64.h b/arch/sparc/include/asm/system_64.h index d47a98e..d24cfe1 100644 --- a/arch/sparc/include/asm/system_64.h +++ b/arch/sparc/include/asm/system_64.h @@ -143,15 +143,7 @@ do { \ * and 2 stores in this critical code path. -DaveM */ #define switch_to(prev, next, last) \ -do { if (test_thread_flag(TIF_PERFCTR)) { \ - unsigned long __tmp; \ - read_pcr(__tmp); \ - current_thread_info()->pcr_reg = __tmp; \ - read_pic(__tmp); \ - current_thread_info()->kernel_cntd0 += (unsigned int)(__tmp);\ - current_thread_info()->kernel_cntd1 += ((__tmp) >> 32); \ - } \ - flush_tlb_pending(); \ +do { flush_tlb_pending(); \ save_and_clear_fpu(); \ /* If you are tempted to conditionalize the following */ \ /* so that ASI is only written if it changes, think again. */ \ @@ -197,11 +189,6 @@ do { if (test_thread_flag(TIF_PERFCTR)) { \ "l1", "l2", "l3", "l4", "l5", "l6", "l7", \ "i0", "i1", "i2", "i3", "i4", "i5", \ "o0", "o1", "o2", "o3", "o4", "o5", "o7"); \ - /* If you fuck with this, update ret_from_syscall code too. */ \ - if (test_thread_flag(TIF_PERFCTR)) { \ - write_pcr(current_thread_info()->pcr_reg); \ - reset_pic(); \ - } \ } while(0) static inline unsigned long xchg32(__volatile__ unsigned int *m, unsigned int val) |