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perf/x86/intel/uncore: Revert "Remove SBOX support for Broadwell server"

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This reverts commit 3b94a89166 ("perf/x86/intel/uncore: Remove
SBOX support for Broadwell server")

Revert because there exists a proper workaround for Broadwell-EP servers
without SBOX now. Note that BDX-DE does not have a SBOX.

Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kan Liang <kan.liang@intel.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: ak@linux.intel.com
Cc: osk@google.com
Cc: mark@voidzero.net
Link: https://lkml.kernel.org/r/1521810690-2576-1-git-send-email-kan.liang@linux.intel.com
This commit is contained in:
Stephane Eranian 2018-03-23 09:11:29 -04:00 committed by Thomas Gleixner
parent 5c8dad48e4
commit d7717587ac
1 changed files with 21 additions and 0 deletions
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21
arch/x86/events/intel/uncore_snbep.c
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@ -3028,10 +3028,27 @@ static struct intel_uncore_type bdx_uncore_cbox = {
.format_group = &hswep_uncore_cbox_format_group,
};
static struct intel_uncore_type bdx_uncore_sbox = {
.name = "sbox",
.num_counters = 4,
.num_boxes = 4,
.perf_ctr_bits = 48,
.event_ctl = HSWEP_S0_MSR_PMON_CTL0,
.perf_ctr = HSWEP_S0_MSR_PMON_CTR0,
.event_mask = HSWEP_S_MSR_PMON_RAW_EVENT_MASK,
.box_ctl = HSWEP_S0_MSR_PMON_BOX_CTL,
.msr_offset = HSWEP_SBOX_MSR_OFFSET,
.ops = &hswep_uncore_sbox_msr_ops,
.format_group = &hswep_uncore_sbox_format_group,
};
#define BDX_MSR_UNCORE_SBOX 3
static struct intel_uncore_type *bdx_msr_uncores[] = {
&bdx_uncore_ubox,
&bdx_uncore_cbox,
&hswep_uncore_pcu,
&bdx_uncore_sbox,
NULL,
};
@ -3047,6 +3064,10 @@ void bdx_uncore_cpu_init(void)
bdx_uncore_cbox.num_boxes = boot_cpu_data.x86_max_cores;
uncore_msr_uncores = bdx_msr_uncores;
/* BDX-DE doesn't have SBOX */
if (boot_cpu_data.x86_model == 86)
uncore_msr_uncores[BDX_MSR_UNCORE_SBOX] = NULL;
hswep_uncore_pcu.constraints = bdx_uncore_pcu_constraints;
}