提交 efe06270 编写于 作者: A Alexander Antonov 提交者: Peter Zijlstra

perf/x86/intel/uncore: Disable I/O stacks to PMU mapping on ICX-D

Current implementation of I/O stacks to PMU mapping doesn't support ICX-D.
Detect ICX-D system to disable mapping.

Fixes: 10337e95 ("perf/x86/intel/uncore: Enable I/O stacks to IIO PMON mapping on ICX")
Signed-off-by: NAlexander Antonov <alexander.antonov@linux.intel.com>
Signed-off-by: NPeter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: NKan Liang <kan.liang@linux.intel.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20221117122833.3103580-5-alexander.antonov@linux.intel.com
上级 65327833
...@@ -2,6 +2,7 @@ ...@@ -2,6 +2,7 @@
#include <linux/slab.h> #include <linux/slab.h>
#include <linux/pci.h> #include <linux/pci.h>
#include <asm/apicdef.h> #include <asm/apicdef.h>
#include <asm/intel-family.h>
#include <linux/io-64-nonatomic-lo-hi.h> #include <linux/io-64-nonatomic-lo-hi.h>
#include <linux/perf_event.h> #include <linux/perf_event.h>
......
...@@ -5226,6 +5226,11 @@ static int icx_iio_get_topology(struct intel_uncore_type *type) ...@@ -5226,6 +5226,11 @@ static int icx_iio_get_topology(struct intel_uncore_type *type)
static int icx_iio_set_mapping(struct intel_uncore_type *type) static int icx_iio_set_mapping(struct intel_uncore_type *type)
{ {
/* Detect ICX-D system. This case is not supported */
if (boot_cpu_data.x86_model == INTEL_FAM6_ICELAKE_D) {
pmu_clear_mapping_attr(type->attr_update, &icx_iio_mapping_group);
return -EPERM;
}
return pmu_iio_set_mapping(type, &icx_iio_mapping_group); return pmu_iio_set_mapping(type, &icx_iio_mapping_group);
} }
......
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