metag: perf: fix build on Meta1
Meta1 doesn't support PERF_ICORE or PERF_CHAN registers resulting in build errors due to missing definitions. Fix this with an ifdef matching the one in asm/metag_mem.h. The build errors (found by a randconfig): arch/metag/kernel/perf/perf_event.c: In function 'metag_pmu_enable_counter': arch/metag/kernel/perf/perf_event.c:639: error: 'PERF_ICORE0' undeclared (first use in this function) arch/metag/kernel/perf/perf_event.c:639: error: (Each undeclared identifier is reported only once arch/metag/kernel/perf/perf_event.c:639: error: for each function it appears in.) arch/metag/kernel/perf/perf_event.c:643: error: 'PERF_CHAN0' undeclared (first use in this function) Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: linux-metag@vger.kernel.org
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@ -618,6 +618,8 @@ static void metag_pmu_enable_counter(struct hw_perf_event *event, int idx)
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/* Check for a core internal or performance channel event. */
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if (tmp) {
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/* PERF_ICORE/PERF_CHAN only exist since Meta2 */
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#ifdef METAC_2_1
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void *perf_addr;
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/*
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@ -640,6 +642,7 @@ static void metag_pmu_enable_counter(struct hw_perf_event *event, int idx)
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if (perf_addr)
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metag_out32((config & 0x0f), perf_addr);
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#endif
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/*
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* Now we use the high nibble as the performance event to
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