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[POWERPC] PA6T PMC support

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Support for PA6T-style PMC registers.

PMCs are completely implementation-dependent on PPC, and PA6T numbers them
differently from the IBM model.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Olof Johansson
2007-01-28 21:25:57 -06:00
committed by Paul Mackerras
parent 7583b6e424
commit 6529c13dfe
3 changed files with 102 additions and 50 deletions
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4
arch/powerpc/kernel/pmc.c
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@ -17,6 +17,7 @@
#include <linux/module.h>
#include <asm/processor.h>
#include <asm/cputable.h>
#include <asm/pmc.h>
#ifndef MMCR0_PMA0
@ -28,7 +29,8 @@ static void dummy_perf(struct pt_regs *regs)
#if defined(CONFIG_FSL_BOOKE) && !defined(CONFIG_E200)
mtpmr(PMRN_PMGC0, mfpmr(PMRN_PMGC0) & ~PMGC0_PMIE);
#elif defined(CONFIG_PPC64) || defined(CONFIG_6xx)
mtspr(SPRN_MMCR0, mfspr(SPRN_MMCR0) & ~(MMCR0_PMXE|MMCR0_PMA0));
if (cur_cpu_spec->pmc_type == PPC_PMC_IBM)
mtspr(SPRN_MMCR0, mfspr(SPRN_MMCR0) & ~(MMCR0_PMXE|MMCR0_PMA0));
#else
mtspr(SPRN_MMCR0, mfspr(SPRN_MMCR0) & ~MMCR0_PMXE);
#endif