* [PATCH V2 1/4] perf/x86/intel/uncore: Constify intel_uncore_ops
2021-06-11 20:51 [PATCH V2 0/4] perf/x86/intel: Constify static structs Rikard Falkeborn
@ 2021-06-11 20:51 ` Rikard Falkeborn
2021-06-11 20:51 ` [PATCH V2 2/4] perf/x86/intel: Constify static attribute_group structs Rikard Falkeborn
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: Rikard Falkeborn @ 2021-06-11 20:51 UTC (permalink / raw
To: Peter Zijlstra
Cc: Ingo Molnar, Arnaldo Carvalho de Melo, Mark Rutland,
Alexander Shishkin, Jiri Olsa, Namhyung Kim, Thomas Gleixner,
Borislav Petkov, x86, H. Peter Anvin, linux-perf-users,
linux-kernel, Kan Liang, Alexander Antonov, Rikard Falkeborn
These are not modified, so make them const to allow the compiler to put
them in read-only memory. To be able to constify all existing
intel_uncore_ops, introduce rkl_uncore_msr_ops to avoid having to modify
skl_uncore_msr_ops at run-time.
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
---
Changes since v1:
- Introduce rkl_uncore_msr_ops to be able to constify skl_uncore_msr_ops
arch/x86/events/intel/uncore.h | 2 +-
arch/x86/events/intel/uncore_discovery.c | 6 +--
arch/x86/events/intel/uncore_nhmex.c | 10 ++--
arch/x86/events/intel/uncore_snb.c | 30 +++++++----
arch/x86/events/intel/uncore_snbep.c | 66 ++++++++++++------------
5 files changed, 61 insertions(+), 53 deletions(-)
diff --git a/arch/x86/events/intel/uncore.h b/arch/x86/events/intel/uncore.h
index 187d7287039c..83b25a7b8c27 100644
--- a/arch/x86/events/intel/uncore.h
+++ b/arch/x86/events/intel/uncore.h
@@ -77,7 +77,7 @@ struct intel_uncore_type {
struct event_constraint unconstrainted;
struct event_constraint *constraints;
struct intel_uncore_pmu *pmus;
- struct intel_uncore_ops *ops;
+ const struct intel_uncore_ops *ops;
struct uncore_event_desc *event_descs;
struct freerunning_counters *freerunning;
const struct attribute_group *attr_groups[4];
diff --git a/arch/x86/events/intel/uncore_discovery.c b/arch/x86/events/intel/uncore_discovery.c
index aba9bff95413..2b8e9a1d793e 100644
--- a/arch/x86/events/intel/uncore_discovery.c
+++ b/arch/x86/events/intel/uncore_discovery.c
@@ -368,7 +368,7 @@ static void intel_generic_uncore_msr_disable_event(struct intel_uncore_box *box,
wrmsrl(hwc->config_base, 0);
}
-static struct intel_uncore_ops generic_uncore_msr_ops = {
+static const struct intel_uncore_ops generic_uncore_msr_ops = {
.init_box = intel_generic_uncore_msr_init_box,
.disable_box = intel_generic_uncore_msr_disable_box,
.enable_box = intel_generic_uncore_msr_enable_box,
@@ -433,7 +433,7 @@ static u64 intel_generic_uncore_pci_read_counter(struct intel_uncore_box *box,
return count;
}
-static struct intel_uncore_ops generic_uncore_pci_ops = {
+static const struct intel_uncore_ops generic_uncore_pci_ops = {
.init_box = intel_generic_uncore_pci_init_box,
.disable_box = intel_generic_uncore_pci_disable_box,
.enable_box = intel_generic_uncore_pci_enable_box,
@@ -516,7 +516,7 @@ static void intel_generic_uncore_mmio_disable_event(struct intel_uncore_box *box
writel(0, box->io_addr + hwc->config_base);
}
-static struct intel_uncore_ops generic_uncore_mmio_ops = {
+static const struct intel_uncore_ops generic_uncore_mmio_ops = {
.init_box = intel_generic_uncore_mmio_init_box,
.exit_box = uncore_mmio_exit_box,
.disable_box = intel_generic_uncore_mmio_disable_box,
diff --git a/arch/x86/events/intel/uncore_nhmex.c b/arch/x86/events/intel/uncore_nhmex.c
index 173e2674be6e..5f7c27d7f428 100644
--- a/arch/x86/events/intel/uncore_nhmex.c
+++ b/arch/x86/events/intel/uncore_nhmex.c
@@ -262,7 +262,7 @@ static void nhmex_uncore_msr_enable_event(struct intel_uncore_box *box, struct p
.disable_event = nhmex_uncore_msr_disable_event, \
.read_counter = uncore_msr_read_counter
-static struct intel_uncore_ops nhmex_uncore_ops = {
+static const struct intel_uncore_ops nhmex_uncore_ops = {
NHMEX_UNCORE_OPS_COMMON_INIT(),
.enable_event = nhmex_uncore_msr_enable_event,
};
@@ -413,7 +413,7 @@ static const struct attribute_group nhmex_uncore_bbox_format_group = {
.attrs = nhmex_uncore_bbox_formats_attr,
};
-static struct intel_uncore_ops nhmex_uncore_bbox_ops = {
+static const struct intel_uncore_ops nhmex_uncore_bbox_ops = {
NHMEX_UNCORE_OPS_COMMON_INIT(),
.enable_event = nhmex_bbox_msr_enable_event,
.hw_config = nhmex_bbox_hw_config,
@@ -490,7 +490,7 @@ static const struct attribute_group nhmex_uncore_sbox_format_group = {
.attrs = nhmex_uncore_sbox_formats_attr,
};
-static struct intel_uncore_ops nhmex_uncore_sbox_ops = {
+static const struct intel_uncore_ops nhmex_uncore_sbox_ops = {
NHMEX_UNCORE_OPS_COMMON_INIT(),
.enable_event = nhmex_sbox_msr_enable_event,
.hw_config = nhmex_sbox_hw_config,
@@ -916,7 +916,7 @@ static struct uncore_event_desc wsmex_uncore_mbox_events[] = {
{ /* end: all zeroes */ },
};
-static struct intel_uncore_ops nhmex_uncore_mbox_ops = {
+static const struct intel_uncore_ops nhmex_uncore_mbox_ops = {
NHMEX_UNCORE_OPS_COMMON_INIT(),
.enable_event = nhmex_mbox_msr_enable_event,
.hw_config = nhmex_mbox_hw_config,
@@ -1179,7 +1179,7 @@ static struct uncore_event_desc nhmex_uncore_rbox_events[] = {
{ /* end: all zeroes */ },
};
-static struct intel_uncore_ops nhmex_uncore_rbox_ops = {
+static const struct intel_uncore_ops nhmex_uncore_rbox_ops = {
NHMEX_UNCORE_OPS_COMMON_INIT(),
.enable_event = nhmex_rbox_msr_enable_event,
.hw_config = nhmex_rbox_hw_config,
diff --git a/arch/x86/events/intel/uncore_snb.c b/arch/x86/events/intel/uncore_snb.c
index 0f63706cdadf..2938679f0002 100644
--- a/arch/x86/events/intel/uncore_snb.c
+++ b/arch/x86/events/intel/uncore_snb.c
@@ -216,7 +216,7 @@ static const struct attribute_group snb_uncore_format_group = {
.attrs = snb_uncore_formats_attr,
};
-static struct intel_uncore_ops snb_uncore_msr_ops = {
+static const struct intel_uncore_ops snb_uncore_msr_ops = {
.init_box = snb_uncore_msr_init_box,
.enable_box = snb_uncore_msr_enable_box,
.exit_box = snb_uncore_msr_exit_box,
@@ -300,7 +300,7 @@ static void skl_uncore_msr_exit_box(struct intel_uncore_box *box)
wrmsrl(SKL_UNC_PERF_GLOBAL_CTL, 0);
}
-static struct intel_uncore_ops skl_uncore_msr_ops = {
+static const struct intel_uncore_ops skl_uncore_msr_ops = {
.init_box = skl_uncore_msr_init_box,
.enable_box = skl_uncore_msr_enable_box,
.exit_box = skl_uncore_msr_exit_box,
@@ -341,7 +341,7 @@ void skl_uncore_cpu_init(void)
snb_uncore_arb.ops = &skl_uncore_msr_ops;
}
-static struct intel_uncore_ops icl_uncore_msr_ops = {
+static const struct intel_uncore_ops icl_uncore_msr_ops = {
.disable_event = snb_uncore_msr_disable_event,
.enable_event = snb_uncore_msr_enable_event,
.read_counter = uncore_msr_read_counter,
@@ -435,14 +435,22 @@ static void rkl_uncore_msr_init_box(struct intel_uncore_box *box)
wrmsrl(SKL_UNC_PERF_GLOBAL_CTL, SNB_UNC_GLOBAL_CTL_EN);
}
+static const struct intel_uncore_ops rkl_uncore_msr_ops = {
+ .init_box = rkl_uncore_msr_init_box,
+ .enable_box = skl_uncore_msr_enable_box,
+ .exit_box = skl_uncore_msr_exit_box,
+ .disable_event = snb_uncore_msr_disable_event,
+ .enable_event = snb_uncore_msr_enable_event,
+ .read_counter = uncore_msr_read_counter,
+};
+
void tgl_uncore_cpu_init(void)
{
uncore_msr_uncores = tgl_msr_uncores;
icl_uncore_cbox.num_boxes = icl_get_cbox_num();
- icl_uncore_cbox.ops = &skl_uncore_msr_ops;
- icl_uncore_clockbox.ops = &skl_uncore_msr_ops;
- snb_uncore_arb.ops = &skl_uncore_msr_ops;
- skl_uncore_msr_ops.init_box = rkl_uncore_msr_init_box;
+ icl_uncore_cbox.ops = &rkl_uncore_msr_ops;
+ icl_uncore_clockbox.ops = &rkl_uncore_msr_ops;
+ snb_uncore_arb.ops = &rkl_uncore_msr_ops;
}
static void adl_uncore_msr_init_box(struct intel_uncore_box *box)
@@ -468,7 +476,7 @@ static void adl_uncore_msr_exit_box(struct intel_uncore_box *box)
wrmsrl(ADL_UNC_PERF_GLOBAL_CTL, 0);
}
-static struct intel_uncore_ops adl_uncore_msr_ops = {
+static const struct intel_uncore_ops adl_uncore_msr_ops = {
.init_box = adl_uncore_msr_init_box,
.enable_box = adl_uncore_msr_enable_box,
.disable_box = adl_uncore_msr_disable_box,
@@ -799,7 +807,7 @@ static struct pmu snb_uncore_imc_pmu = {
.capabilities = PERF_PMU_CAP_NO_EXCLUDE,
};
-static struct intel_uncore_ops snb_uncore_imc_ops = {
+static const struct intel_uncore_ops snb_uncore_imc_ops = {
.init_box = snb_uncore_imc_init_box,
.exit_box = uncore_mmio_exit_box,
.enable_box = snb_uncore_imc_enable_box,
@@ -1267,7 +1275,7 @@ static struct uncore_event_desc nhm_uncore_events[] = {
{ /* end: all zeroes */ },
};
-static struct intel_uncore_ops nhm_uncore_msr_ops = {
+static const struct intel_uncore_ops nhm_uncore_msr_ops = {
.disable_box = nhm_uncore_msr_disable_box,
.enable_box = nhm_uncore_msr_enable_box,
.disable_event = snb_uncore_msr_disable_event,
@@ -1422,7 +1430,7 @@ static void tgl_uncore_imc_freerunning_init_box(struct intel_uncore_box *box)
pr_warn("perf uncore: Failed to ioremap for %s.\n", type->name);
}
-static struct intel_uncore_ops tgl_uncore_imc_freerunning_ops = {
+static const struct intel_uncore_ops tgl_uncore_imc_freerunning_ops = {
.init_box = tgl_uncore_imc_freerunning_init_box,
.exit_box = uncore_mmio_exit_box,
.read_counter = uncore_mmio_read_counter,
diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
index bb6eb1e5569c..43eabe8d37dc 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -775,7 +775,7 @@ static const struct attribute_group snbep_uncore_qpi_format_group = {
__SNBEP_UNCORE_MSR_OPS_COMMON_INIT(), \
.init_box = snbep_uncore_msr_init_box \
-static struct intel_uncore_ops snbep_uncore_msr_ops = {
+static const struct intel_uncore_ops snbep_uncore_msr_ops = {
SNBEP_UNCORE_MSR_OPS_COMMON_INIT(),
};
@@ -786,7 +786,7 @@ static struct intel_uncore_ops snbep_uncore_msr_ops = {
.disable_event = snbep_uncore_pci_disable_event, \
.read_counter = snbep_uncore_pci_read_counter
-static struct intel_uncore_ops snbep_uncore_pci_ops = {
+static const struct intel_uncore_ops snbep_uncore_pci_ops = {
SNBEP_UNCORE_PCI_OPS_COMMON_INIT(),
.enable_event = snbep_uncore_pci_enable_event, \
};
@@ -1017,7 +1017,7 @@ static int snbep_cbox_hw_config(struct intel_uncore_box *box, struct perf_event
return 0;
}
-static struct intel_uncore_ops snbep_uncore_cbox_ops = {
+static const struct intel_uncore_ops snbep_uncore_cbox_ops = {
SNBEP_UNCORE_MSR_OPS_COMMON_INIT(),
.hw_config = snbep_cbox_hw_config,
.get_constraint = snbep_cbox_get_constraint,
@@ -1127,7 +1127,7 @@ static int snbep_pcu_hw_config(struct intel_uncore_box *box, struct perf_event *
return 0;
}
-static struct intel_uncore_ops snbep_uncore_pcu_ops = {
+static const struct intel_uncore_ops snbep_uncore_pcu_ops = {
SNBEP_UNCORE_MSR_OPS_COMMON_INIT(),
.hw_config = snbep_pcu_hw_config,
.get_constraint = snbep_pcu_get_constraint,
@@ -1211,7 +1211,7 @@ static void snbep_qpi_enable_event(struct intel_uncore_box *box, struct perf_eve
pci_write_config_dword(pdev, hwc->config_base, hwc->config | SNBEP_PMON_CTL_EN);
}
-static struct intel_uncore_ops snbep_uncore_qpi_ops = {
+static const struct intel_uncore_ops snbep_uncore_qpi_ops = {
SNBEP_UNCORE_PCI_OPS_COMMON_INIT(),
.enable_event = snbep_qpi_enable_event,
.hw_config = snbep_qpi_hw_config,
@@ -1517,11 +1517,11 @@ static void ivbep_uncore_pci_init_box(struct intel_uncore_box *box)
.enable_event = snbep_uncore_msr_enable_event, \
.read_counter = uncore_msr_read_counter
-static struct intel_uncore_ops ivbep_uncore_msr_ops = {
+static const struct intel_uncore_ops ivbep_uncore_msr_ops = {
IVBEP_UNCORE_MSR_OPS_COMMON_INIT(),
};
-static struct intel_uncore_ops ivbep_uncore_pci_ops = {
+static const struct intel_uncore_ops ivbep_uncore_pci_ops = {
.init_box = ivbep_uncore_pci_init_box,
.disable_box = snbep_uncore_pci_disable_box,
.enable_box = snbep_uncore_pci_enable_box,
@@ -1757,7 +1757,7 @@ static void ivbep_cbox_enable_event(struct intel_uncore_box *box, struct perf_ev
wrmsrl(hwc->config_base, hwc->config | SNBEP_PMON_CTL_EN);
}
-static struct intel_uncore_ops ivbep_uncore_cbox_ops = {
+static const struct intel_uncore_ops ivbep_uncore_cbox_ops = {
.init_box = ivbep_uncore_msr_init_box,
.disable_box = snbep_uncore_msr_disable_box,
.enable_box = snbep_uncore_msr_enable_box,
@@ -1785,7 +1785,7 @@ static struct intel_uncore_type ivbep_uncore_cbox = {
.format_group = &ivbep_uncore_cbox_format_group,
};
-static struct intel_uncore_ops ivbep_uncore_pcu_ops = {
+static const struct intel_uncore_ops ivbep_uncore_pcu_ops = {
IVBEP_UNCORE_MSR_OPS_COMMON_INIT(),
.hw_config = snbep_pcu_hw_config,
.get_constraint = snbep_pcu_get_constraint,
@@ -1873,7 +1873,7 @@ static u64 ivbep_uncore_irp_read_counter(struct intel_uncore_box *box, struct pe
return count;
}
-static struct intel_uncore_ops ivbep_uncore_irp_ops = {
+static const struct intel_uncore_ops ivbep_uncore_irp_ops = {
.init_box = ivbep_uncore_pci_init_box,
.disable_box = snbep_uncore_pci_disable_box,
.enable_box = snbep_uncore_pci_enable_box,
@@ -1893,7 +1893,7 @@ static struct intel_uncore_type ivbep_uncore_irp = {
.format_group = &ivbep_uncore_format_group,
};
-static struct intel_uncore_ops ivbep_uncore_qpi_ops = {
+static const struct intel_uncore_ops ivbep_uncore_qpi_ops = {
.init_box = ivbep_uncore_pci_init_box,
.disable_box = snbep_uncore_pci_disable_box,
.enable_box = snbep_uncore_pci_enable_box,
@@ -2178,7 +2178,7 @@ static int knl_cha_hw_config(struct intel_uncore_box *box,
static void hswep_cbox_enable_event(struct intel_uncore_box *box,
struct perf_event *event);
-static struct intel_uncore_ops knl_uncore_cha_ops = {
+static const struct intel_uncore_ops knl_uncore_cha_ops = {
.init_box = snbep_uncore_msr_init_box,
.disable_box = snbep_uncore_msr_disable_box,
.enable_box = snbep_uncore_msr_enable_box,
@@ -2272,7 +2272,7 @@ static void knl_uncore_imc_enable_event(struct intel_uncore_box *box,
hwc->config | SNBEP_PMON_CTL_EN);
}
-static struct intel_uncore_ops knl_uncore_imc_ops = {
+static const struct intel_uncore_ops knl_uncore_imc_ops = {
.init_box = snbep_uncore_pci_init_box,
.disable_box = snbep_uncore_pci_disable_box,
.enable_box = knl_uncore_imc_enable_box,
@@ -2581,7 +2581,7 @@ static int hswep_ubox_hw_config(struct intel_uncore_box *box, struct perf_event
return 0;
}
-static struct intel_uncore_ops hswep_uncore_ubox_ops = {
+static const struct intel_uncore_ops hswep_uncore_ubox_ops = {
SNBEP_UNCORE_MSR_OPS_COMMON_INIT(),
.hw_config = hswep_ubox_hw_config,
.get_constraint = uncore_get_constraint,
@@ -2741,7 +2741,7 @@ static void hswep_cbox_enable_event(struct intel_uncore_box *box,
wrmsrl(hwc->config_base, hwc->config | SNBEP_PMON_CTL_EN);
}
-static struct intel_uncore_ops hswep_uncore_cbox_ops = {
+static const struct intel_uncore_ops hswep_uncore_cbox_ops = {
.init_box = snbep_uncore_msr_init_box,
.disable_box = snbep_uncore_msr_disable_box,
.enable_box = snbep_uncore_msr_enable_box,
@@ -2788,7 +2788,7 @@ static void hswep_uncore_sbox_msr_init_box(struct intel_uncore_box *box)
}
}
-static struct intel_uncore_ops hswep_uncore_sbox_msr_ops = {
+static const struct intel_uncore_ops hswep_uncore_sbox_msr_ops = {
__SNBEP_UNCORE_MSR_OPS_COMMON_INIT(),
.init_box = hswep_uncore_sbox_msr_init_box
};
@@ -2836,7 +2836,7 @@ static int hswep_pcu_hw_config(struct intel_uncore_box *box, struct perf_event *
return 0;
}
-static struct intel_uncore_ops hswep_uncore_pcu_ops = {
+static const struct intel_uncore_ops hswep_uncore_pcu_ops = {
SNBEP_UNCORE_MSR_OPS_COMMON_INIT(),
.hw_config = hswep_pcu_hw_config,
.get_constraint = snbep_pcu_get_constraint,
@@ -2941,7 +2941,7 @@ static u64 hswep_uncore_irp_read_counter(struct intel_uncore_box *box, struct pe
return count;
}
-static struct intel_uncore_ops hswep_uncore_irp_ops = {
+static const struct intel_uncore_ops hswep_uncore_irp_ops = {
.init_box = snbep_uncore_pci_init_box,
.disable_box = snbep_uncore_pci_disable_box,
.enable_box = snbep_uncore_pci_enable_box,
@@ -3611,7 +3611,7 @@ static int skx_cha_hw_config(struct intel_uncore_box *box, struct perf_event *ev
return 0;
}
-static struct intel_uncore_ops skx_uncore_chabox_ops = {
+static const struct intel_uncore_ops skx_uncore_chabox_ops = {
/* There is no frz_en for chabox ctl */
.init_box = ivbep_uncore_msr_init_box,
.disable_box = snbep_uncore_msr_disable_box,
@@ -3673,7 +3673,7 @@ static void skx_iio_enable_event(struct intel_uncore_box *box,
wrmsrl(hwc->config_base, hwc->config | SNBEP_PMON_CTL_EN);
}
-static struct intel_uncore_ops skx_uncore_iio_ops = {
+static const struct intel_uncore_ops skx_uncore_iio_ops = {
.init_box = ivbep_uncore_msr_init_box,
.disable_box = snbep_uncore_msr_disable_box,
.enable_box = snbep_uncore_msr_enable_box,
@@ -3931,7 +3931,7 @@ static struct uncore_event_desc skx_uncore_iio_freerunning_events[] = {
{ /* end: all zeroes */ },
};
-static struct intel_uncore_ops skx_uncore_iio_freerunning_ops = {
+static const struct intel_uncore_ops skx_uncore_iio_freerunning_ops = {
.read_counter = uncore_msr_read_counter,
.hw_config = uncore_freerunning_hw_config,
};
@@ -4006,7 +4006,7 @@ static struct attribute_group skx_uncore_pcu_format_group = {
.attrs = skx_uncore_pcu_formats_attr,
};
-static struct intel_uncore_ops skx_uncore_pcu_ops = {
+static const struct intel_uncore_ops skx_uncore_pcu_ops = {
IVBEP_UNCORE_MSR_OPS_COMMON_INIT(),
.hw_config = hswep_pcu_hw_config,
.get_constraint = snbep_pcu_get_constraint,
@@ -4105,7 +4105,7 @@ static void skx_upi_uncore_pci_init_box(struct intel_uncore_box *box)
pci_write_config_dword(pdev, SKX_UPI_PCI_PMON_BOX_CTL, IVBEP_PMON_BOX_CTL_INT);
}
-static struct intel_uncore_ops skx_upi_uncore_pci_ops = {
+static const struct intel_uncore_ops skx_upi_uncore_pci_ops = {
.init_box = skx_upi_uncore_pci_init_box,
.disable_box = snbep_uncore_pci_disable_box,
.enable_box = snbep_uncore_pci_enable_box,
@@ -4136,7 +4136,7 @@ static void skx_m2m_uncore_pci_init_box(struct intel_uncore_box *box)
pci_write_config_dword(pdev, SKX_M2M_PCI_PMON_BOX_CTL, IVBEP_PMON_BOX_CTL_INT);
}
-static struct intel_uncore_ops skx_m2m_uncore_pci_ops = {
+static const struct intel_uncore_ops skx_m2m_uncore_pci_ops = {
.init_box = skx_m2m_uncore_pci_init_box,
.disable_box = snbep_uncore_pci_disable_box,
.enable_box = snbep_uncore_pci_enable_box,
@@ -4373,7 +4373,7 @@ static void snr_cha_enable_event(struct intel_uncore_box *box,
wrmsrl(hwc->config_base, hwc->config | SNBEP_PMON_CTL_EN);
}
-static struct intel_uncore_ops snr_uncore_chabox_ops = {
+static const struct intel_uncore_ops snr_uncore_chabox_ops = {
.init_box = ivbep_uncore_msr_init_box,
.disable_box = snbep_uncore_msr_disable_box,
.enable_box = snbep_uncore_msr_enable_box,
@@ -4560,7 +4560,7 @@ static int snr_pcu_hw_config(struct intel_uncore_box *box, struct perf_event *ev
return 0;
}
-static struct intel_uncore_ops snr_uncore_pcu_ops = {
+static const struct intel_uncore_ops snr_uncore_pcu_ops = {
IVBEP_UNCORE_MSR_OPS_COMMON_INIT(),
.hw_config = snr_pcu_hw_config,
.get_constraint = snbep_pcu_get_constraint,
@@ -4660,7 +4660,7 @@ static void snr_m2m_uncore_pci_init_box(struct intel_uncore_box *box)
pci_write_config_dword(pdev, box_ctl, IVBEP_PMON_BOX_CTL_INT);
}
-static struct intel_uncore_ops snr_m2m_uncore_pci_ops = {
+static const struct intel_uncore_ops snr_m2m_uncore_pci_ops = {
.init_box = snr_m2m_uncore_pci_init_box,
.disable_box = snbep_uncore_pci_disable_box,
.enable_box = snbep_uncore_pci_enable_box,
@@ -4706,7 +4706,7 @@ static void snr_uncore_pci_enable_event(struct intel_uncore_box *box, struct per
pci_write_config_dword(pdev, hwc->config_base + 4, (u32)(hwc->config >> 32));
}
-static struct intel_uncore_ops snr_pcie3_uncore_pci_ops = {
+static const struct intel_uncore_ops snr_pcie3_uncore_pci_ops = {
.init_box = snr_m2m_uncore_pci_init_box,
.disable_box = snbep_uncore_pci_disable_box,
.enable_box = snbep_uncore_pci_enable_box,
@@ -4884,7 +4884,7 @@ static void snr_uncore_mmio_disable_event(struct intel_uncore_box *box,
writel(hwc->config, box->io_addr + hwc->config_base);
}
-static struct intel_uncore_ops snr_uncore_mmio_ops = {
+static const struct intel_uncore_ops snr_uncore_mmio_ops = {
.init_box = snr_uncore_mmio_init_box,
.exit_box = uncore_mmio_exit_box,
.disable_box = snr_uncore_mmio_disable_box,
@@ -4948,7 +4948,7 @@ static struct uncore_event_desc snr_uncore_imc_freerunning_events[] = {
{ /* end: all zeroes */ },
};
-static struct intel_uncore_ops snr_uncore_imc_freerunning_ops = {
+static const struct intel_uncore_ops snr_uncore_imc_freerunning_ops = {
.init_box = snr_uncore_mmio_init_box,
.exit_box = uncore_mmio_exit_box,
.read_counter = uncore_mmio_read_counter,
@@ -5005,7 +5005,7 @@ static int icx_cha_hw_config(struct intel_uncore_box *box, struct perf_event *ev
return 0;
}
-static struct intel_uncore_ops icx_uncore_chabox_ops = {
+static const struct intel_uncore_ops icx_uncore_chabox_ops = {
.init_box = ivbep_uncore_msr_init_box,
.disable_box = snbep_uncore_msr_disable_box,
.enable_box = snbep_uncore_msr_enable_box,
@@ -5406,7 +5406,7 @@ static void icx_uncore_imc_init_box(struct intel_uncore_box *box)
__snr_uncore_mmio_init_box(box, box_ctl, mem_offset);
}
-static struct intel_uncore_ops icx_uncore_mmio_ops = {
+static const struct intel_uncore_ops icx_uncore_mmio_ops = {
.init_box = icx_uncore_imc_init_box,
.exit_box = uncore_mmio_exit_box,
.disable_box = snr_uncore_mmio_disable_box,
@@ -5476,7 +5476,7 @@ static void icx_uncore_imc_freerunning_init_box(struct intel_uncore_box *box)
__snr_uncore_mmio_init_box(box, uncore_mmio_box_ctl(box), mem_offset);
}
-static struct intel_uncore_ops icx_uncore_imc_freerunning_ops = {
+static const struct intel_uncore_ops icx_uncore_imc_freerunning_ops = {
.init_box = icx_uncore_imc_freerunning_init_box,
.exit_box = uncore_mmio_exit_box,
.read_counter = uncore_mmio_read_counter,
--
2.32.0
^ permalink raw reply related [flat|nested] 5+ messages in thread* [PATCH V2 2/4] perf/x86/intel: Constify static attribute_group structs
2021-06-11 20:51 [PATCH V2 0/4] perf/x86/intel: Constify static structs Rikard Falkeborn
2021-06-11 20:51 ` [PATCH V2 1/4] perf/x86/intel/uncore: Constify intel_uncore_ops Rikard Falkeborn
@ 2021-06-11 20:51 ` Rikard Falkeborn
2021-06-11 20:51 ` [PATCH V2 3/4] perf/x86/intel/uncore: Constify freerunning_counters Rikard Falkeborn
2021-06-11 20:51 ` [PATCH V2 4/4] perf/x86/intel/uncore: Constify unmodified static extra_reg structs Rikard Falkeborn
3 siblings, 0 replies; 5+ messages in thread
From: Rikard Falkeborn @ 2021-06-11 20:51 UTC (permalink / raw
To: Peter Zijlstra
Cc: Ingo Molnar, Arnaldo Carvalho de Melo, Mark Rutland,
Alexander Shishkin, Jiri Olsa, Namhyung Kim, Thomas Gleixner,
Borislav Petkov, x86, H. Peter Anvin, linux-perf-users,
linux-kernel, Kan Liang, Alexander Antonov, Rikard Falkeborn
These either have their address put in an array of pointers to const
attribute structs, or (in uncore_snb.c and uncore_snbep.c) have their
address assigned to at pointer to const field in the intel_uncore_type
struct.
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
---
Changes since v1:
- None
arch/x86/events/intel/core.c | 8 ++++----
arch/x86/events/intel/cstate.c | 10 +++++-----
arch/x86/events/intel/pt.c | 4 ++--
arch/x86/events/intel/uncore_snb.c | 2 +-
arch/x86/events/intel/uncore_snbep.c | 2 +-
5 files changed, 13 insertions(+), 13 deletions(-)
diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index e28892270c58..b07d832f304e 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -5164,12 +5164,12 @@ static struct attribute_group group_events_tsx = {
.is_visible = tsx_is_visible,
};
-static struct attribute_group group_caps_gen = {
+static const struct attribute_group group_caps_gen = {
.name = "caps",
.attrs = intel_pmu_caps_attrs,
};
-static struct attribute_group group_caps_lbr = {
+static const struct attribute_group group_caps_lbr = {
.name = "caps",
.attrs = lbr_attrs,
.is_visible = lbr_is_visible,
@@ -5185,7 +5185,7 @@ static struct attribute_group group_format_extra_skl = {
.is_visible = exra_is_visible,
};
-static struct attribute_group group_default = {
+static const struct attribute_group group_default = {
.attrs = intel_pmu_attrs,
.is_visible = default_is_visible,
};
@@ -5364,7 +5364,7 @@ static struct attribute *intel_hybrid_cpus_attrs[] = {
NULL,
};
-static struct attribute_group hybrid_group_cpus = {
+static const struct attribute_group hybrid_group_cpus = {
.attrs = intel_hybrid_cpus_attrs,
};
diff --git a/arch/x86/events/intel/cstate.c b/arch/x86/events/intel/cstate.c
index 433399069e27..089f71ac83f5 100644
--- a/arch/x86/events/intel/cstate.c
+++ b/arch/x86/events/intel/cstate.c
@@ -187,7 +187,7 @@ static struct attribute *attrs_empty[] = {
* "events" group (with empty attrs) before updating
* it with detected events.
*/
-static struct attribute_group core_events_attr_group = {
+static const struct attribute_group core_events_attr_group = {
.name = "events",
.attrs = attrs_empty,
};
@@ -198,7 +198,7 @@ static struct attribute *core_format_attrs[] = {
NULL,
};
-static struct attribute_group core_format_attr_group = {
+static const struct attribute_group core_format_attr_group = {
.name = "format",
.attrs = core_format_attrs,
};
@@ -211,7 +211,7 @@ static struct attribute *cstate_cpumask_attrs[] = {
NULL,
};
-static struct attribute_group cpumask_attr_group = {
+static const struct attribute_group cpumask_attr_group = {
.attrs = cstate_cpumask_attrs,
};
@@ -266,7 +266,7 @@ static struct perf_msr pkg_msr[] = {
[PERF_CSTATE_PKG_C10_RES] = { MSR_PKG_C10_RESIDENCY, &group_cstate_pkg_c10, test_msr },
};
-static struct attribute_group pkg_events_attr_group = {
+static const struct attribute_group pkg_events_attr_group = {
.name = "events",
.attrs = attrs_empty,
};
@@ -276,7 +276,7 @@ static struct attribute *pkg_format_attrs[] = {
&format_attr_pkg_event.attr,
NULL,
};
-static struct attribute_group pkg_format_attr_group = {
+static const struct attribute_group pkg_format_attr_group = {
.name = "format",
.attrs = pkg_format_attrs,
};
diff --git a/arch/x86/events/intel/pt.c b/arch/x86/events/intel/pt.c
index 915847655c06..83ccf106ed13 100644
--- a/arch/x86/events/intel/pt.c
+++ b/arch/x86/events/intel/pt.c
@@ -128,7 +128,7 @@ static struct attribute *pt_formats_attr[] = {
NULL,
};
-static struct attribute_group pt_format_group = {
+static const struct attribute_group pt_format_group = {
.name = "format",
.attrs = pt_formats_attr,
};
@@ -165,7 +165,7 @@ static struct attribute *pt_timing_attr[] = {
NULL,
};
-static struct attribute_group pt_timing_group = {
+static const struct attribute_group pt_timing_group = {
.attrs = pt_timing_attr,
};
diff --git a/arch/x86/events/intel/uncore_snb.c b/arch/x86/events/intel/uncore_snb.c
index 2938679f0002..e30b69fba939 100644
--- a/arch/x86/events/intel/uncore_snb.c
+++ b/arch/x86/events/intel/uncore_snb.c
@@ -369,7 +369,7 @@ static struct attribute *icl_uncore_clock_formats_attr[] = {
NULL,
};
-static struct attribute_group icl_uncore_clock_format_group = {
+static const struct attribute_group icl_uncore_clock_format_group = {
.name = "format",
.attrs = icl_uncore_clock_formats_attr,
};
diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
index 43eabe8d37dc..b5b22fe473d8 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -4001,7 +4001,7 @@ static struct attribute *skx_uncore_pcu_formats_attr[] = {
NULL,
};
-static struct attribute_group skx_uncore_pcu_format_group = {
+static const struct attribute_group skx_uncore_pcu_format_group = {
.name = "format",
.attrs = skx_uncore_pcu_formats_attr,
};
--
2.32.0
^ permalink raw reply related [flat|nested] 5+ messages in thread* [PATCH V2 3/4] perf/x86/intel/uncore: Constify freerunning_counters
2021-06-11 20:51 [PATCH V2 0/4] perf/x86/intel: Constify static structs Rikard Falkeborn
2021-06-11 20:51 ` [PATCH V2 1/4] perf/x86/intel/uncore: Constify intel_uncore_ops Rikard Falkeborn
2021-06-11 20:51 ` [PATCH V2 2/4] perf/x86/intel: Constify static attribute_group structs Rikard Falkeborn
@ 2021-06-11 20:51 ` Rikard Falkeborn
2021-06-11 20:51 ` [PATCH V2 4/4] perf/x86/intel/uncore: Constify unmodified static extra_reg structs Rikard Falkeborn
3 siblings, 0 replies; 5+ messages in thread
From: Rikard Falkeborn @ 2021-06-11 20:51 UTC (permalink / raw
To: Peter Zijlstra
Cc: Ingo Molnar, Arnaldo Carvalho de Melo, Mark Rutland,
Alexander Shishkin, Jiri Olsa, Namhyung Kim, Thomas Gleixner,
Borislav Petkov, x86, H. Peter Anvin, linux-perf-users,
linux-kernel, Kan Liang, Alexander Antonov, Rikard Falkeborn
These are never modified, so make them const to allow the compiler to
put them in read-only memory.
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
---
Changes since v1:
- None
arch/x86/events/intel/uncore.h | 4 ++--
arch/x86/events/intel/uncore_snb.c | 6 +++---
arch/x86/events/intel/uncore_snbep.c | 14 +++++++-------
3 files changed, 12 insertions(+), 12 deletions(-)
diff --git a/arch/x86/events/intel/uncore.h b/arch/x86/events/intel/uncore.h
index 83b25a7b8c27..6a7f0104bb38 100644
--- a/arch/x86/events/intel/uncore.h
+++ b/arch/x86/events/intel/uncore.h
@@ -79,7 +79,7 @@ struct intel_uncore_type {
struct intel_uncore_pmu *pmus;
const struct intel_uncore_ops *ops;
struct uncore_event_desc *event_descs;
- struct freerunning_counters *freerunning;
+ const struct freerunning_counters *freerunning;
const struct attribute_group *attr_groups[4];
const struct attribute_group **attr_update;
struct pmu *pmu; /* for custom pmu ops */
@@ -175,7 +175,7 @@ struct freerunning_counters {
unsigned int box_offset;
unsigned int num_counters;
unsigned int bits;
- unsigned *box_offsets;
+ const unsigned *box_offsets;
};
struct intel_uncore_topology {
diff --git a/arch/x86/events/intel/uncore_snb.c b/arch/x86/events/intel/uncore_snb.c
index e30b69fba939..d9542943cdbe 100644
--- a/arch/x86/events/intel/uncore_snb.c
+++ b/arch/x86/events/intel/uncore_snb.c
@@ -611,7 +611,7 @@ enum perf_snb_uncore_imc_freerunning_types {
SNB_PCI_UNCORE_IMC_FREERUNNING_TYPE_MAX,
};
-static struct freerunning_counters snb_uncore_imc_freerunning[] = {
+static const struct freerunning_counters snb_uncore_imc_freerunning[] = {
[SNB_PCI_UNCORE_IMC_DATA_READS] = { SNB_UNCORE_PCI_IMC_DATA_READS_BASE,
0x0, 0x0, 1, 32 },
[SNB_PCI_UNCORE_IMC_DATA_WRITES] = { SNB_UNCORE_PCI_IMC_DATA_WRITES_BASE,
@@ -1352,13 +1352,13 @@ enum perf_tgl_uncore_imc_freerunning_types {
TGL_MMIO_UNCORE_IMC_FREERUNNING_TYPE_MAX
};
-static struct freerunning_counters tgl_l_uncore_imc_freerunning[] = {
+static const struct freerunning_counters tgl_l_uncore_imc_freerunning[] = {
[TGL_MMIO_UNCORE_IMC_DATA_TOTAL] = { 0x5040, 0x0, 0x0, 1, 64 },
[TGL_MMIO_UNCORE_IMC_DATA_READ] = { 0x5058, 0x0, 0x0, 1, 64 },
[TGL_MMIO_UNCORE_IMC_DATA_WRITE] = { 0x50A0, 0x0, 0x0, 1, 64 },
};
-static struct freerunning_counters tgl_uncore_imc_freerunning[] = {
+static const struct freerunning_counters tgl_uncore_imc_freerunning[] = {
[TGL_MMIO_UNCORE_IMC_DATA_TOTAL] = { 0xd840, 0x0, 0x0, 1, 64 },
[TGL_MMIO_UNCORE_IMC_DATA_READ] = { 0xd858, 0x0, 0x0, 1, 64 },
[TGL_MMIO_UNCORE_IMC_DATA_WRITE] = { 0xd8A0, 0x0, 0x0, 1, 64 },
diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
index b5b22fe473d8..507bb83e1463 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -3885,7 +3885,7 @@ enum perf_uncore_iio_freerunning_type_id {
};
-static struct freerunning_counters skx_iio_freerunning[] = {
+static const struct freerunning_counters skx_iio_freerunning[] = {
[SKX_IIO_MSR_IOCLK] = { 0xa45, 0x1, 0x20, 1, 36 },
[SKX_IIO_MSR_BW] = { 0xb00, 0x1, 0x10, 8, 36 },
[SKX_IIO_MSR_UTIL] = { 0xb08, 0x1, 0x10, 8, 36 },
@@ -4588,7 +4588,7 @@ enum perf_uncore_snr_iio_freerunning_type_id {
SNR_IIO_FREERUNNING_TYPE_MAX,
};
-static struct freerunning_counters snr_iio_freerunning[] = {
+static const struct freerunning_counters snr_iio_freerunning[] = {
[SNR_IIO_MSR_IOCLK] = { 0x1eac, 0x1, 0x10, 1, 48 },
[SNR_IIO_MSR_BW_IN] = { 0x1f00, 0x1, 0x10, 8, 48 },
};
@@ -4931,7 +4931,7 @@ enum perf_uncore_snr_imc_freerunning_type_id {
SNR_IMC_FREERUNNING_TYPE_MAX,
};
-static struct freerunning_counters snr_imc_freerunning[] = {
+static const struct freerunning_counters snr_imc_freerunning[] = {
[SNR_IMC_DCLK] = { 0x22b0, 0x0, 0, 1, 48 },
[SNR_IMC_DDR] = { 0x2290, 0x8, 0, 2, 48 },
};
@@ -5153,15 +5153,15 @@ enum perf_uncore_icx_iio_freerunning_type_id {
ICX_IIO_FREERUNNING_TYPE_MAX,
};
-static unsigned icx_iio_clk_freerunning_box_offsets[] = {
+static const unsigned icx_iio_clk_freerunning_box_offsets[] = {
0x0, 0x20, 0x40, 0x90, 0xb0, 0xd0,
};
-static unsigned icx_iio_bw_freerunning_box_offsets[] = {
+static const unsigned icx_iio_bw_freerunning_box_offsets[] = {
0x0, 0x10, 0x20, 0x90, 0xa0, 0xb0,
};
-static struct freerunning_counters icx_iio_freerunning[] = {
+static const struct freerunning_counters icx_iio_freerunning[] = {
[ICX_IIO_MSR_IOCLK] = { 0xa55, 0x1, 0x20, 1, 48, icx_iio_clk_freerunning_box_offsets },
[ICX_IIO_MSR_BW_IN] = { 0xaa0, 0x1, 0x10, 8, 48, icx_iio_bw_freerunning_box_offsets },
};
@@ -5443,7 +5443,7 @@ enum perf_uncore_icx_imc_freerunning_type_id {
ICX_IMC_FREERUNNING_TYPE_MAX,
};
-static struct freerunning_counters icx_imc_freerunning[] = {
+static const struct freerunning_counters icx_imc_freerunning[] = {
[ICX_IMC_DCLK] = { 0x22b0, 0x0, 0, 1, 48 },
[ICX_IMC_DDR] = { 0x2290, 0x8, 0, 2, 48 },
[ICX_IMC_DDRT] = { 0x22a0, 0x8, 0, 2, 48 },
--
2.32.0
^ permalink raw reply related [flat|nested] 5+ messages in thread* [PATCH V2 4/4] perf/x86/intel/uncore: Constify unmodified static extra_reg structs
2021-06-11 20:51 [PATCH V2 0/4] perf/x86/intel: Constify static structs Rikard Falkeborn
` (2 preceding siblings ...)
2021-06-11 20:51 ` [PATCH V2 3/4] perf/x86/intel/uncore: Constify freerunning_counters Rikard Falkeborn
@ 2021-06-11 20:51 ` Rikard Falkeborn
3 siblings, 0 replies; 5+ messages in thread
From: Rikard Falkeborn @ 2021-06-11 20:51 UTC (permalink / raw
To: Peter Zijlstra
Cc: Ingo Molnar, Arnaldo Carvalho de Melo, Mark Rutland,
Alexander Shishkin, Jiri Olsa, Namhyung Kim, Thomas Gleixner,
Borislav Petkov, x86, H. Peter Anvin, linux-perf-users,
linux-kernel, Kan Liang, Alexander Antonov, Rikard Falkeborn
These are never modified, so make them const to allow the compiler to
put them in read-only memory.
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
---
Changes since v1:
- None
arch/x86/events/intel/uncore_nhmex.c | 6 +++---
arch/x86/events/intel/uncore_snbep.c | 20 ++++++++++----------
2 files changed, 13 insertions(+), 13 deletions(-)
diff --git a/arch/x86/events/intel/uncore_nhmex.c b/arch/x86/events/intel/uncore_nhmex.c
index 5f7c27d7f428..b4567489580d 100644
--- a/arch/x86/events/intel/uncore_nhmex.c
+++ b/arch/x86/events/intel/uncore_nhmex.c
@@ -525,7 +525,7 @@ enum {
EXTRA_REG_NHMEX_M_ZDP_CTL_FVC,
};
-static struct extra_reg nhmex_uncore_mbox_extra_regs[] = {
+static const struct extra_reg nhmex_uncore_mbox_extra_regs[] = {
MBOX_INC_SEL_EXTAR_REG(0x0, DSP),
MBOX_INC_SEL_EXTAR_REG(0x4, MSC_THR),
MBOX_INC_SEL_EXTAR_REG(0x5, MSC_THR),
@@ -755,7 +755,7 @@ static void nhmex_mbox_put_constraint(struct intel_uncore_box *box, struct perf_
}
}
-static int nhmex_mbox_extra_reg_idx(struct extra_reg *er)
+static int nhmex_mbox_extra_reg_idx(const struct extra_reg *er)
{
if (er->idx < EXTRA_REG_NHMEX_M_ZDP_CTL_FVC)
return er->idx;
@@ -767,7 +767,7 @@ static int nhmex_mbox_hw_config(struct intel_uncore_box *box, struct perf_event
struct intel_uncore_type *type = box->pmu->type;
struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
struct hw_perf_event_extra *reg2 = &event->hw.branch_reg;
- struct extra_reg *er;
+ const struct extra_reg *er;
unsigned msr;
int reg_idx = 0;
/*
diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
index 507bb83e1463..77b342637688 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -882,7 +882,7 @@ static struct intel_uncore_type snbep_uncore_ubox = {
.format_group = &snbep_uncore_ubox_format_group,
};
-static struct extra_reg snbep_uncore_cbox_extra_regs[] = {
+static const struct extra_reg snbep_uncore_cbox_extra_regs[] = {
SNBEP_CBO_EVENT_EXTRA_REG(SNBEP_CBO_PMON_CTL_TID_EN,
SNBEP_CBO_PMON_CTL_TID_EN, 0x1),
SNBEP_CBO_EVENT_EXTRA_REG(0x0334, 0xffff, 0x4),
@@ -999,7 +999,7 @@ snbep_cbox_get_constraint(struct intel_uncore_box *box, struct perf_event *event
static int snbep_cbox_hw_config(struct intel_uncore_box *box, struct perf_event *event)
{
struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
- struct extra_reg *er;
+ const struct extra_reg *er;
int idx = 0;
for (er = snbep_uncore_cbox_extra_regs; er->msr; er++) {
@@ -1653,7 +1653,7 @@ static struct intel_uncore_type ivbep_uncore_ubox = {
.format_group = &ivbep_uncore_ubox_format_group,
};
-static struct extra_reg ivbep_uncore_cbox_extra_regs[] = {
+static const struct extra_reg ivbep_uncore_cbox_extra_regs[] = {
SNBEP_CBO_EVENT_EXTRA_REG(SNBEP_CBO_PMON_CTL_TID_EN,
SNBEP_CBO_PMON_CTL_TID_EN, 0x1),
SNBEP_CBO_EVENT_EXTRA_REG(0x1031, 0x10ff, 0x2),
@@ -1725,7 +1725,7 @@ ivbep_cbox_get_constraint(struct intel_uncore_box *box, struct perf_event *event
static int ivbep_cbox_hw_config(struct intel_uncore_box *box, struct perf_event *event)
{
struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
- struct extra_reg *er;
+ const struct extra_reg *er;
int idx = 0;
for (er = ivbep_uncore_cbox_extra_regs; er->msr; er++) {
@@ -2121,7 +2121,7 @@ static struct event_constraint knl_uncore_cha_constraints[] = {
EVENT_CONSTRAINT_END
};
-static struct extra_reg knl_uncore_cha_extra_regs[] = {
+static const struct extra_reg knl_uncore_cha_extra_regs[] = {
SNBEP_CBO_EVENT_EXTRA_REG(SNBEP_CBO_PMON_CTL_TID_EN,
SNBEP_CBO_PMON_CTL_TID_EN, 0x1),
SNBEP_CBO_EVENT_EXTRA_REG(0x3d, 0xff, 0x2),
@@ -2153,7 +2153,7 @@ static int knl_cha_hw_config(struct intel_uncore_box *box,
struct perf_event *event)
{
struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
- struct extra_reg *er;
+ const struct extra_reg *er;
int idx = 0;
for (er = knl_uncore_cha_extra_regs; er->msr; er++) {
@@ -2637,7 +2637,7 @@ static struct event_constraint hswep_uncore_cbox_constraints[] = {
EVENT_CONSTRAINT_END
};
-static struct extra_reg hswep_uncore_cbox_extra_regs[] = {
+static const struct extra_reg hswep_uncore_cbox_extra_regs[] = {
SNBEP_CBO_EVENT_EXTRA_REG(SNBEP_CBO_PMON_CTL_TID_EN,
SNBEP_CBO_PMON_CTL_TID_EN, 0x1),
SNBEP_CBO_EVENT_EXTRA_REG(0x0334, 0xffff, 0x4),
@@ -2708,7 +2708,7 @@ hswep_cbox_get_constraint(struct intel_uncore_box *box, struct perf_event *event
static int hswep_cbox_hw_config(struct intel_uncore_box *box, struct perf_event *event)
{
struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
- struct extra_reg *er;
+ const struct extra_reg *er;
int idx = 0;
for (er = hswep_uncore_cbox_extra_regs; er->msr; er++) {
@@ -3547,7 +3547,7 @@ static struct event_constraint skx_uncore_chabox_constraints[] = {
EVENT_CONSTRAINT_END
};
-static struct extra_reg skx_uncore_cha_extra_regs[] = {
+static const struct extra_reg skx_uncore_cha_extra_regs[] = {
SNBEP_CBO_EVENT_EXTRA_REG(0x0334, 0xffff, 0x4),
SNBEP_CBO_EVENT_EXTRA_REG(0x0534, 0xffff, 0x4),
SNBEP_CBO_EVENT_EXTRA_REG(0x0934, 0xffff, 0x4),
@@ -3593,7 +3593,7 @@ skx_cha_get_constraint(struct intel_uncore_box *box, struct perf_event *event)
static int skx_cha_hw_config(struct intel_uncore_box *box, struct perf_event *event)
{
struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
- struct extra_reg *er;
+ const struct extra_reg *er;
int idx = 0;
for (er = skx_uncore_cha_extra_regs; er->msr; er++) {
--
2.32.0
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