diff options
Diffstat (limited to 'arch/powerpc/perf/e500-pmu.c')
| -rw-r--r-- | arch/powerpc/perf/e500-pmu.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/arch/powerpc/perf/e500-pmu.c b/arch/powerpc/perf/e500-pmu.c index fb664929f5da..e3e1a68eb1d5 100644 --- a/arch/powerpc/perf/e500-pmu.c +++ b/arch/powerpc/perf/e500-pmu.c @@ -1,13 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Performance counter support for e500 family processors. * * Copyright 2008-2009 Paul Mackerras, IBM Corporation. * Copyright 2010 Freescale Semiconductor, Inc. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #include <linux/string.h> #include <linux/perf_event.h> @@ -122,12 +118,13 @@ static struct fsl_emb_pmu e500_pmu = { static int init_e500_pmu(void) { - if (!cur_cpu_spec->oprofile_cpu_type) - return -ENODEV; + unsigned int pvr = mfspr(SPRN_PVR); - if (!strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc/e500mc")) + /* ec500mc */ + if (PVR_VER(pvr) == PVR_VER_E500MC || PVR_VER(pvr) == PVR_VER_E5500) num_events = 256; - else if (strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc/e500")) + /* e500 */ + else if (PVR_VER(pvr) != PVR_VER_E500V1 && PVR_VER(pvr) != PVR_VER_E500V2) return -ENODEV; return register_fsl_emb_pmu(&e500_pmu); |