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metag: perf: fix build on Meta1

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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
This commit is contained in:
James Hogan 2013-07-22 15:18:34 +01:00
parent 879d08ec30
commit f5d163aad3
1 changed files with 3 additions and 0 deletions
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3
arch/metag/kernel/perf/perf_event.c
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@ -618,6 +618,8 @@ static void metag_pmu_enable_counter(struct hw_perf_event *event, int idx)
/* Check for a core internal or performance channel event. */
if (tmp) {
/* PERF_ICORE/PERF_CHAN only exist since Meta2 */
#ifdef METAC_2_1
void *perf_addr;
/*
@ -640,6 +642,7 @@ static void metag_pmu_enable_counter(struct hw_perf_event *event, int idx)
if (perf_addr)
metag_out32((config & 0x0f), perf_addr);
#endif
/*
* Now we use the high nibble as the performance event to