Commit-ID: d7717587ac6deae00e0b66c0113a046be2c6fb1c
Gitweb: https://git.kernel.org/tip/d7717587ac6deae00e0b66c0113a046be2c6fb1c
Author: Stephane Eranian <[email protected]>
AuthorDate: Fri, 23 Mar 2018 09:11:29 -0400
Committer: Thomas Gleixner <[email protected]>
CommitDate: Fri, 20 Apr 2018 12:41:17 +0200
perf/x86/intel/uncore: Revert "Remove SBOX support for Broadwell server"
This reverts commit 3b94a891667c ("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 <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Acked-by: Peter Zijlstra <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Link:
https://lkml.kernel.org/r/[email protected]
---
arch/x86/events/intel/uncore_snbep.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/arch/x86/events/intel/uncore_snbep.c
b/arch/x86/events/intel/uncore_snbep.c
index c98b943e58b4..5bbbbee11879 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -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;
}
