diff options
| author | Andy Fleming <afleming@freescale.com> | 2005-12-15 20:02:04 -0600 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-01-09 15:06:03 +1100 |
| commit | 555d97ac87aef08bb55dff6f05e68fe2987d6f6d (patch) | |
| tree | 7016485d112af04b972dcc749e437a7131424252 /arch/powerpc/kernel/pmc.c | |
| parent | e5cd040409dc0f8d34a21827d6b74918b3a4fccf (diff) | |
[PATCH] powerpc: G4+ oprofile support
This patch adds oprofile support for the 7450 and all its multitudinous
derivatives.
* Added 7450 (and derivatives) support for oprofile
* Changed e500 cputable to have oprofile model and cpu_type fields
* Added support for classic 32-bit performance monitor interrupt
* Cleaned up common powerpc oprofile code to be as common as possible
* Cleaned up oprofile_impl.h to reflect 32 bit classic code
* Added 32-bit MMCRx bitfield definitions and SPR numbers
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/pmc.c')
| -rw-r--r-- | arch/powerpc/kernel/pmc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/pmc.c b/arch/powerpc/kernel/pmc.c index 2d333cc84082..e6fb194fe537 100644 --- a/arch/powerpc/kernel/pmc.c +++ b/arch/powerpc/kernel/pmc.c @@ -43,8 +43,13 @@ static void dummy_perf(struct pt_regs *regs) mtspr(SPRN_MMCR0, mmcr0); } #else +/* Ensure exceptions are disabled */ static void dummy_perf(struct pt_regs *regs) { + unsigned int mmcr0 = mfspr(SPRN_MMCR0); + + mmcr0 &= ~(MMCR0_PMXE); + mtspr(SPRN_MMCR0, mmcr0); } #endif |