[PATCH v2 2/7] platform/x86/amd/hsmp: Add metrics table support for Family 1Ah Model 50h-5Fh

Muralidhara M K
2026-04-27T15:52:09Z

Define the UAPI structures hsmp_metric_table_zen6_iod,
hsmp_metric_table_zen6_ccd and the top-level hsmp_metric_table_zen6
to describe the per-IOD and per-CCD metrics layout for AMD Family 1Ah
Model 50h-5Fh processors (HSMP protocol version 7). These structures
allow userspace tools to interpret the raw metric table binary exposed
via sysfs.

Widen the ACPI driver protocol version checks from
== HSMP_PROTO_VER6 to >= HSMP_PROTO_VER6 so the metric table
sysfs binary attribute is also created for protocol version 7 and
future versions.

Co-developed-by: Muthusamy Ramalingam <muthusamy.ramalingam@amd.com>
Signed-off-by: Muthusamy Ramalingam <muthusamy.ramalingam@amd.com>
Signed-off-by: Muralidhara M K <muralidhara.mk@amd.com>
---
Changes v1->v2:
Split the change

arch/x86/include/uapi/asm/amd_hsmp.h | 88 ++++++++++++++++++++++++++++
drivers/platform/x86/amd/hsmp/acpi.c | 4 +-
2 files changed, 90 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/uapi/asm/amd_hsmp.h b/arch/x86/include/uapi/asm/amd_hsmp.h
index 603d62f8d4da..da3e3bbfa33e 100644
--- a/arch/x86/include/uapi/asm/amd_hsmp.h
+++ b/arch/x86/include/uapi/asm/amd_hsmp.h
@@ -575,6 +575,94 @@ struct hsmp_metric_table {
__u32 gfxclk_frequency[8];
};

+#define F1A_M50_M5F_MAX_CORES_PER_CCD_32 32
+#define F1A_M50_M5F_MAX_FREQ_TABLE_SIZE 4
+#define F1A_M50_M5F_MAX_XGMI 8
+#define F1A_M50_M5F_MAX_PCIE 8
+#define F1A_M50_M5F_MAX_CCD 8
+
+/* Metrics table (supported only with proto version 7) */
+struct hsmp_metric_table_zen6_iod {
+ __u32 num_active_ccds;
+ __u32 accumulation_counter;
+
+ /* TEMPERATURE */
+ __u64 max_socket_temperature_acc;
+
+ /* POWER */
+ __u32 socket_power_limit;
+ __u32 max_socket_power_limit;
+ __u64 socket_power_acc;
+ __u64 core_power_acc;
+ __u64 uncore_power_acc;
+
+ /* ENERGY */
+ __u64 timestamp;
+ __u64 socket_energy_acc;
+ __u64 core_energy_acc;
+ __u64 uncore_energy_acc;
+
+ /* FREQUENCY */
+ __u64 fclk_frequency_acc;
+ __u64 uclk_frequency_acc;
+ __u64 ddr_rate_acc;
+ __u64 lclk_frequency_acc[F1A_M50_M5F_MAX_FREQ_TABLE_SIZE];
+
+ /* FREQUENCY RANGE */
+ __u32 fclk_frequency_table[F1A_M50_M5F_MAX_FREQ_TABLE_SIZE];
+ __u32 uclk_frequency_table[F1A_M50_M5F_MAX_FREQ_TABLE_SIZE];
+ __u32 ddr_rate_table[F1A_M50_M5F_MAX_FREQ_TABLE_SIZE];
+ __u32 max_df_pstate_range;
+ __u32 min_df_pstate_range;
+ __u32 lclk_frequency_table[F1A_M50_M5F_MAX_FREQ_TABLE_SIZE];
+ __u32 max_lclk_dpm_range;
+ __u32 min_lclk_dpm_range;
+
+ /* XGMI */
+ __u64 xgmi_bit_rate[F1A_M50_M5F_MAX_XGMI];
+ __u64 xgmi_read_bandwidth[F1A_M50_M5F_MAX_XGMI];
+ __u64 xgmi_write_bandwidth[F1A_M50_M5F_MAX_XGMI];
+
+ /* ACTIVITY */
+ __u64 socket_c0_residency_acc;
+ __u64 socket_df_cstate_residency_acc;
+ __u64 dram_read_bandwidth_acc;
+ __u64 dram_write_bandwidth_acc;
+ __u32 max_dram_bandwidth;
+ __u64 pcie_bandwidth_acc[F1A_M50_M5F_MAX_PCIE];
+
+ /* THROTTLERS */
+ __u32 prochot_residency_acc;
+ __u32 ppt_residency_acc;
+ __u32 thm_residency_acc;
+ __u32 vrhot_residency_acc;
+ __u32 cpu_tdc_residency_acc;
+ __u32 soc_tdc_residency_acc;
+ __u32 io_mem_tdc_residency_acc;
+ __u32 fit_residency_acc;
+};
+
+struct hsmp_metric_table_zen6_ccd {
+ __u32 core_apicid_of_thread0[F1A_M50_M5F_MAX_CORES_PER_CCD_32];
+ __u64 core_c0[F1A_M50_M5F_MAX_CORES_PER_CCD_32];
+ __u64 core_cc1[F1A_M50_M5F_MAX_CORES_PER_CCD_32];
+ __u64 core_cc6[F1A_M50_M5F_MAX_CORES_PER_CCD_32];
+ __u64 core_frequency[F1A_M50_M5F_MAX_CORES_PER_CCD_32];
+ __u64 core_frequency_effective[F1A_M50_M5F_MAX_CORES_PER_CCD_32];
+ __u64 core_power[F1A_M50_M5F_MAX_CORES_PER_CCD_32];
+};
+
+/*
+ * Metrics table for Family 0x1A, Models 0x50 to 0x5F, table version 0x00700000
+ *
+ * Future processors within the same family and model may support a
+ * variable number of CCDs and cores
+ */
+struct hsmp_metric_table_zen6 {
+ struct hsmp_metric_table_zen6_iod iod;
+ struct hsmp_metric_table_zen6_ccd ccd[F1A_M50_M5F_MAX_CCD];
+};
+
/* Reset to default packing */
#pragma pack()

diff --git a/drivers/platform/x86/amd/hsmp/acpi.c b/drivers/platform/x86/amd/hsmp/acpi.c
index 97ed71593bdf..8044df862275 100644
--- a/drivers/platform/x86/amd/hsmp/acpi.c
+++ b/drivers/platform/x86/amd/hsmp/acpi.c
@@ -244,7 +244,7 @@ static ssize_t hsmp_metric_tbl_acpi_read(struct file *filp, struct kobject *kobj
static umode_t hsmp_is_sock_attr_visible(struct kobject *kobj,
const struct bin_attribute *battr, int id)
{
- if (hsmp_pdev->proto_ver == HSMP_PROTO_VER6)
+ if (hsmp_pdev->proto_ver >= HSMP_PROTO_VER6)
return battr->attr.mode;

return 0;
@@ -491,7 +491,7 @@ static int init_acpi(struct device *dev)
return ret;
}

- if (hsmp_pdev->proto_ver == HSMP_PROTO_VER6) {
+ if (hsmp_pdev->proto_ver >= HSMP_PROTO_VER6) {
ret = hsmp_get_tbl_dram_base(sock_ind);
if (ret)
dev_info(dev, "Failed to init metric table\n");
--
2.34.1