[RFC PATCH 2/2] power: refactor uncore power management library

[Sivaprasad Tummala <sivaprasad.tummala@amd.com>]

This patch refactors the power management library, addressing uncore
power management. The primary changes involve the creation of dedicated
directories for each driver within 'drivers/power/uncore/*'. The
adjustment of meson.build files enables the selective activation
of individual drivers.

This refactor significantly improves code organization, enhances
clarity and boosts maintainability. It lays the foundation for more
focused development on individual drivers and facilitates seamless
integration of future enhancements, particularly the AMD uncore driver.

Signed-off-by: Sivaprasad Tummala <sivaprasad.tummala@amd.com>
---
 drivers/power/meson.build                     |   1 +
 drivers/power/uncore/intel/meson.build        |   9 +
 .../power/uncore/intel}/power_intel_uncore.c  |  15 ++
 .../power/uncore/intel}/power_intel_uncore.h  |   0
 drivers/power/uncore/meson.build              |   8 +
 lib/power/meson.build                         |   1 -
 lib/power/rte_power_uncore.c                  | 163 +++++++-----------
 lib/power/rte_power_uncore.h                  | 150 ++++++++++++++--
 lib/power/version.map                         |   1 +
 9 files changed, 236 insertions(+), 112 deletions(-)
 create mode 100644 drivers/power/uncore/intel/meson.build
 rename {lib/power => drivers/power/uncore/intel}/power_intel_uncore.c (95%)
 rename {lib/power => drivers/power/uncore/intel}/power_intel_uncore.h (100%)
 create mode 100644 drivers/power/uncore/meson.build

diff --git a/drivers/power/meson.build b/drivers/power/meson.build
index 7d9034c7ac..0803e99027 100644
--- a/drivers/power/meson.build
+++ b/drivers/power/meson.build
@@ -3,6 +3,7 @@
 
 drivers = [
         'core',
+        'uncore',
 ]
 
 std_deps = ['power']
diff --git a/drivers/power/uncore/intel/meson.build b/drivers/power/uncore/intel/meson.build
new file mode 100644
index 0000000000..187ab15aec
--- /dev/null
+++ b/drivers/power/uncore/intel/meson.build
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2017 Intel Corporation
+# Copyright(c) 2024 AMD Limited
+
+sources = files('power_intel_uncore.c')
+
+headers = files('power_intel_uncore.h')
+
+deps += ['power']
diff --git a/lib/power/power_intel_uncore.c b/drivers/power/uncore/intel/power_intel_uncore.c
similarity index 95%
rename from lib/power/power_intel_uncore.c
rename to drivers/power/uncore/intel/power_intel_uncore.c
index 3ce8fccec2..3af4cc3bc7 100644
--- a/lib/power/power_intel_uncore.c
+++ b/drivers/power/uncore/intel/power_intel_uncore.c
@@ -476,3 +476,18 @@ power_intel_uncore_get_num_dies(unsigned int pkg)
 
 	return count;
 }
+
+static struct rte_power_uncore_ops intel_uncore_ops = {
+	.init = power_intel_uncore_init,
+	.exit = power_intel_uncore_exit,
+	.get_avail_freqs = power_intel_uncore_freqs,
+	.get_num_pkgs = power_intel_uncore_get_num_pkgs,
+	.get_num_dies = power_intel_uncore_get_num_dies,
+	.get_num_freqs = power_intel_uncore_get_num_freqs,
+	.get_freq = power_get_intel_uncore_freq,
+	.set_freq = power_set_intel_uncore_freq,
+	.freq_max = power_intel_uncore_freq_max,
+	.freq_min = power_intel_uncore_freq_min,
+};
+
+RTE_POWER_REGISTER_UNCORE_OPS(intel_uncore_ops);
diff --git a/lib/power/power_intel_uncore.h b/drivers/power/uncore/intel/power_intel_uncore.h
similarity index 100%
rename from lib/power/power_intel_uncore.h
rename to drivers/power/uncore/intel/power_intel_uncore.h
diff --git a/drivers/power/uncore/meson.build b/drivers/power/uncore/meson.build
new file mode 100644
index 0000000000..005c0dc622
--- /dev/null
+++ b/drivers/power/uncore/meson.build
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2024 AMD Limited
+
+drivers = [
+        'intel',
+]
+
+std_deps = ['power']
diff --git a/lib/power/meson.build b/lib/power/meson.build
index 207d96d877..459e9b6e9b 100644
--- a/lib/power/meson.build
+++ b/lib/power/meson.build
@@ -13,7 +13,6 @@ if not is_linux
 endif
 sources = files(
         'power_common.c',
-        'power_intel_uncore.c',
         'rte_power.c',
         'rte_power_uncore.c',
         'rte_power_pmd_mgmt.c',
diff --git a/lib/power/rte_power_uncore.c b/lib/power/rte_power_uncore.c
index 48c75a5da0..8feb41736b 100644
--- a/lib/power/rte_power_uncore.c
+++ b/lib/power/rte_power_uncore.c
@@ -15,88 +15,68 @@
 enum rte_uncore_power_mgmt_env default_uncore_env = RTE_UNCORE_PM_ENV_NOT_SET;
 
 static rte_spinlock_t global_env_cfg_lock = RTE_SPINLOCK_INITIALIZER;
+static struct rte_power_uncore_ops rte_power_uncore_ops[PM_ENV_MAX];
 
-static uint32_t
-power_get_dummy_uncore_freq(unsigned int pkg __rte_unused,
-	       unsigned int die __rte_unused)
-{
-	return 0;
-}
-
-static int
-power_set_dummy_uncore_freq(unsigned int pkg __rte_unused,
-	       unsigned int die __rte_unused, uint32_t index __rte_unused)
-{
-	return 0;
-}
-
-static int
-power_dummy_uncore_freq_max(unsigned int pkg __rte_unused,
-	       unsigned int die __rte_unused)
-{
-	return 0;
-}
 
-static int
-power_dummy_uncore_freq_min(unsigned int pkg __rte_unused,
-	       unsigned int die __rte_unused)
+/* register the ops struct in rte_power_uncore_ops, return 0 on success. */
+int
+rte_power_register_uncore_ops(const struct rte_power_uncore_ops *op)
 {
-	return 0;
-}
+	struct rte_power_uncore_ops *ops;
+
+	if ((op->env != RTE_UNCORE_PM_ENV_INTEL_UNCORE) &&
+		(op->env != RTE_UNCORE_PM_ENV_AMD_HSMP)) {
+		POWER_LOG(ERR,
+			"Unsupported uncore power management environment\n");
+			return -EINVAL;
+		return -EINVAL;
+	}
 
-static int
-power_dummy_uncore_freqs(unsigned int pkg __rte_unused, unsigned int die __rte_unused,
-		uint32_t *freqs __rte_unused, uint32_t num __rte_unused)
-{
-	return 0;
-}
+	if (op->status != 0) {
+		POWER_LOG(ERR,
+			"uncore Power management env[%d] ops registered already\n",
+			op->env);
+		return -EINVAL;
+	}
 
-static int
-power_dummy_uncore_get_num_freqs(unsigned int pkg __rte_unused,
-	       unsigned int die __rte_unused)
-{
-	return 0;
-}
+	if (!op->init || !op->exit || !op->get_num_pkgs || !op->get_num_dies ||
+		!op->get_num_freqs || !op->get_avail_freqs || !op->get_freq ||
+		!op->set_freq || !op->freq_max || !op->freq_min) {
+		POWER_LOG(ERR, "Missing callbacks while registering power ops\n");
+		return -EINVAL;
+	}
+	ops = &rte_power_uncore_ops[op->env];
+	ops->env = op->env;
+	ops->init = op->init;
+	ops->exit = op->exit;
+	ops->get_num_pkgs = op->get_num_pkgs;
+	ops->get_num_dies = op->get_num_dies;
+	ops->get_num_freqs = op->get_num_freqs;
+	ops->get_avail_freqs = op->get_avail_freqs;
+	ops->get_freq = op->get_freq;
+	ops->set_freq = op->set_freq;
+	ops->freq_max = op->freq_max;
+	ops->freq_min = op->freq_min;
+	ops->status = 1; /* registered */
 
-static unsigned int
-power_dummy_uncore_get_num_pkgs(void)
-{
 	return 0;
 }
 
-static unsigned int
-power_dummy_uncore_get_num_dies(unsigned int pkg __rte_unused)
+struct rte_power_uncore_ops *
+rte_power_get_uncore_ops(int ops_index)
 {
-	return 0;
-}
+	RTE_VERIFY((ops_index != RTE_UNCORE_PM_ENV_INTEL_UNCORE) &&
+			(ops_index != RTE_UNCORE_PM_ENV_AMD_HSMP));
+	RTE_VERIFY(rte_power_uncore_ops[ops_index].status != 0);
 
-/* function pointers */
-rte_power_get_uncore_freq_t rte_power_get_uncore_freq = power_get_dummy_uncore_freq;
-rte_power_set_uncore_freq_t rte_power_set_uncore_freq = power_set_dummy_uncore_freq;
-rte_power_uncore_freq_change_t rte_power_uncore_freq_max = power_dummy_uncore_freq_max;
-rte_power_uncore_freq_change_t rte_power_uncore_freq_min = power_dummy_uncore_freq_min;
-rte_power_uncore_freqs_t rte_power_uncore_freqs = power_dummy_uncore_freqs;
-rte_power_uncore_get_num_freqs_t rte_power_uncore_get_num_freqs = power_dummy_uncore_get_num_freqs;
-rte_power_uncore_get_num_pkgs_t rte_power_uncore_get_num_pkgs = power_dummy_uncore_get_num_pkgs;
-rte_power_uncore_get_num_dies_t rte_power_uncore_get_num_dies = power_dummy_uncore_get_num_dies;
-
-static void
-reset_power_uncore_function_ptrs(void)
-{
-	rte_power_get_uncore_freq = power_get_dummy_uncore_freq;
-	rte_power_set_uncore_freq = power_set_dummy_uncore_freq;
-	rte_power_uncore_freq_max = power_dummy_uncore_freq_max;
-	rte_power_uncore_freq_min = power_dummy_uncore_freq_min;
-	rte_power_uncore_freqs  = power_dummy_uncore_freqs;
-	rte_power_uncore_get_num_freqs = power_dummy_uncore_get_num_freqs;
-	rte_power_uncore_get_num_pkgs = power_dummy_uncore_get_num_pkgs;
-	rte_power_uncore_get_num_dies = power_dummy_uncore_get_num_dies;
+	return &rte_power_uncore_ops[ops_index];
 }
 
 int
 rte_power_set_uncore_env(enum rte_uncore_power_mgmt_env env)
 {
-	int ret;
+	int ret = 0;
+	struct rte_power_uncore_ops *ops;
 
 	rte_spinlock_lock(&global_env_cfg_lock);
 
@@ -113,24 +93,15 @@ rte_power_set_uncore_env(enum rte_uncore_power_mgmt_env env)
 		 */
 		env = RTE_UNCORE_PM_ENV_INTEL_UNCORE;
 
-	ret = 0;
-	if (env == RTE_UNCORE_PM_ENV_INTEL_UNCORE) {
-		rte_power_get_uncore_freq = power_get_intel_uncore_freq;
-		rte_power_set_uncore_freq = power_set_intel_uncore_freq;
-		rte_power_uncore_freq_min  = power_intel_uncore_freq_min;
-		rte_power_uncore_freq_max  = power_intel_uncore_freq_max;
-		rte_power_uncore_freqs = power_intel_uncore_freqs;
-		rte_power_uncore_get_num_freqs = power_intel_uncore_get_num_freqs;
-		rte_power_uncore_get_num_pkgs = power_intel_uncore_get_num_pkgs;
-		rte_power_uncore_get_num_dies = power_intel_uncore_get_num_dies;
-	} else {
+	}
+
+	ops = rte_power_get_uncore_ops(env);
+	if (ops->status == 0) {
 		POWER_LOG(ERR, "Invalid Power Management Environment(%d) set", env);
 		ret = -1;
-		goto out;
-	}
+	} else
+		default_uncore_env = env;
 
-	default_uncore_env = env;
-out:
 	rte_spinlock_unlock(&global_env_cfg_lock);
 	return ret;
 }
@@ -140,7 +111,6 @@ rte_power_unset_uncore_env(void)
 {
 	rte_spinlock_lock(&global_env_cfg_lock);
 	default_uncore_env = RTE_UNCORE_PM_ENV_NOT_SET;
-	reset_power_uncore_function_ptrs();
 	rte_spinlock_unlock(&global_env_cfg_lock);
 }
 
@@ -154,18 +124,18 @@ int
 rte_power_uncore_init(unsigned int pkg, unsigned int die)
 {
 	int ret = -1;
+	struct rte_power_uncore_ops *ops;
 
-	switch (default_uncore_env) {
-	case RTE_UNCORE_PM_ENV_INTEL_UNCORE:
-		return power_intel_uncore_init(pkg, die);
-	default:
-		POWER_LOG(INFO, "Uncore Env isn't set yet!");
-		break;
+	if ((default_uncore_env != RTE_UNCORE_PM_ENV_NOT_SET) &&
+		(default_uncore_env != RTE_UNCORE_PM_ENV_AUTO_DETECT)) {
+		ops = rte_power_get_uncore_ops(default_uncore_env);
+		return ops->init(pkg, die);
 	}
 
 	/* Auto detect Environment */
 	POWER_LOG(INFO, "Attempting to initialise Intel Uncore power mgmt...");
-	ret = power_intel_uncore_init(pkg, die);
+	ops = rte_power_get_uncore_ops(RTE_UNCORE_PM_ENV_INTEL_UNCORE);
+	ret = ops->init(pkg, die);
 	if (ret == 0) {
 		rte_power_set_uncore_env(RTE_UNCORE_PM_ENV_INTEL_UNCORE);
 		goto out;
@@ -183,12 +153,13 @@ rte_power_uncore_init(unsigned int pkg, unsigned int die)
 int
 rte_power_uncore_exit(unsigned int pkg, unsigned int die)
 {
-	switch (default_uncore_env) {
-	case RTE_UNCORE_PM_ENV_INTEL_UNCORE:
-		return power_intel_uncore_exit(pkg, die);
-	default:
-		POWER_LOG(ERR, "Uncore Env has not been set, unable to exit gracefully");
-		break;
+	struct rte_power_uncore_ops *ops;
+
+	if (default_uncore_env == RTE_UNCORE_PM_ENV_NOT_SET) {
+		POWER_LOG(ERR,
+			"Uncore Env has not been set, unable to exit gracefully");
+		return -1;
 	}
-	return -1;
+	ops = rte_power_get_uncore_ops(default_uncore_env);
+	return ops->exit(pkg, die);
 }
diff --git a/lib/power/rte_power_uncore.h b/lib/power/rte_power_uncore.h
index 99859042dd..fe14a1bbe5 100644
--- a/lib/power/rte_power_uncore.h
+++ b/lib/power/rte_power_uncore.h
@@ -58,6 +58,81 @@ void rte_power_unset_uncore_env(void);
 __rte_experimental
 enum rte_uncore_power_mgmt_env rte_power_get_uncore_env(void);
 
+/**
+ * Function pointers for generic frequency change functions.
+ *
+ * @param pkg
+ *  Package number.
+ *  Each physical CPU in a system is referred to as a package.
+ * @param die
+ *  Die number.
+ *  Each package can have several dies connected together via the uncore mesh.
+ *
+ * @return
+ *  - 1 on success with frequency changed.
+ *  - 0 on success without frequency changed.
+ *  - Negative on error.
+ */
+typedef int (*rte_power_uncore_init_t)(unsigned int pkg, unsigned int die);
+typedef int (*rte_power_uncore_exit_t)(unsigned int pkg, unsigned int die);
+
+typedef uint32_t (*rte_power_get_uncore_freq_t)(unsigned int pkg, unsigned int die);
+typedef int (*rte_power_set_uncore_freq_t)(unsigned int pkg, unsigned int die, uint32_t index);
+typedef int (*rte_power_uncore_get_num_freqs_t)(unsigned int pkg, unsigned int die);
+typedef int (*rte_power_uncore_freqs_t)(unsigned int pkg, unsigned int die,
+					uint32_t *freqs, uint32_t num);
+typedef int (*rte_power_uncore_freq_change_t)(unsigned int pkg, unsigned int die);
+typedef unsigned int (*rte_power_uncore_get_num_pkgs_t)(void);
+typedef unsigned int (*rte_power_uncore_get_num_dies_t)(unsigned int pkg);
+
+/** Structure defining uncore power operations structure */
+struct rte_power_uncore_ops {
+	uint8_t status;                         /**< ops register status. */
+	enum rte_uncore_power_mgmt_env env;          /**< power mgmt env. */
+	rte_power_uncore_init_t init;    /**< Initialize power management. */
+	rte_power_uncore_exit_t exit;    /**< Exit power management. */
+	rte_power_uncore_get_num_pkgs_t get_num_pkgs;
+	rte_power_uncore_get_num_dies_t get_num_dies;
+	rte_power_uncore_get_num_freqs_t get_num_freqs; /**< Number of available frequencies. */
+	rte_power_uncore_freqs_t get_avail_freqs; /**< Get the available frequencies. */
+	rte_power_get_uncore_freq_t get_freq; /**< Get frequency index. */
+	rte_power_set_uncore_freq_t set_freq; /**< Set frequency index. */
+	rte_power_uncore_freq_change_t freq_max;  /**< Scale up frequency to highest. */
+	rte_power_uncore_freq_change_t freq_min;  /**< Scale up frequency to lowest. */
+} __rte_cache_aligned;
+
+
+/**
+ * Register power uncore frequency operations.
+ * @param ops
+ *   Pointer to an ops structure to register.
+ * @return
+ *   - >=0: Success; return the index of the ops struct in the table.
+ *   - -EINVAL - error while registering ops struct.
+ */
+__rte_internal
+int rte_power_register_uncore_ops(const struct rte_power_uncore_ops *ops);
+
+/**
+ * Macro to statically register the ops of an uncore driver.
+ */
+#define RTE_POWER_REGISTER_UNCORE_OPS(ops)		\
+	(RTE_INIT(power_hdlr_init_uncore_##ops)         \
+	{                                               \
+		rte_power_register_uncore_ops(&ops);    \
+	})
+
+/**
+ * @internal Get the power uncore ops struct from its index.
+ *
+ * @param ops_index
+ *   The index of the ops struct in the ops struct table.
+ * @return
+ *   The pointer to the ops struct in the table if registered.
+ */
+struct rte_power_uncore_ops *
+rte_power_get_uncore_ops(int ops_index);
+
 /**
  * Initialize uncore frequency management for specific die on a package.
  * It will get the available frequencies and prepare to set new die frequencies.
@@ -116,9 +191,14 @@ rte_power_uncore_exit(unsigned int pkg, unsigned int die);
  *  The current index of available frequencies.
  *  If error, it will return 'RTE_POWER_INVALID_FREQ_INDEX = (~0)'.
  */
-typedef uint32_t (*rte_power_get_uncore_freq_t)(unsigned int pkg, unsigned int die);
+static inline uint32_t
+rte_power_get_uncore_freq(unsigned int pkg, unsigned int die)
+{
+	struct rte_power_uncore_ops *ops;
 
-extern rte_power_get_uncore_freq_t rte_power_get_uncore_freq;
+	ops = rte_power_get_uncore_ops(rte_power_get_uncore_env());
+	return ops->get_freq(pkg, die);
+}
 
 /**
  * Set minimum and maximum uncore frequency for specified die on a package
@@ -141,9 +221,15 @@ extern rte_power_get_uncore_freq_t rte_power_get_uncore_freq;
  *  - 0 on success without frequency changed.
  *  - Negative on error.
  */
-typedef int (*rte_power_set_uncore_freq_t)(unsigned int pkg, unsigned int die, uint32_t index);
+static inline uint32_t
+rte_power_set_uncore_freq(unsigned int pkg, unsigned int die, uint32_t index)
+{
+	struct rte_power_uncore_ops *ops;
+
+	ops = rte_power_get_uncore_ops(rte_power_get_uncore_env());
+	return ops->set_freq(pkg, die, index);
+}
 
-extern rte_power_set_uncore_freq_t rte_power_set_uncore_freq;
 
 /**
  * Function pointer definition for generic frequency change functions.
@@ -169,7 +255,14 @@ typedef int (*rte_power_uncore_freq_change_t)(unsigned int pkg, unsigned int die
  *
  * This function should NOT be called in the fast path.
  */
-extern rte_power_uncore_freq_change_t rte_power_uncore_freq_max;
+static inline uint32_t
+rte_power_uncore_freq_max(unsigned int pkg, unsigned int die)
+{
+	struct rte_power_uncore_ops *ops;
+
+	ops = rte_power_get_uncore_ops(rte_power_get_uncore_env());
+	return ops->freq_max(pkg, die);
+}
 
 /**
  * Set minimum and maximum uncore frequency for specified die on a package
@@ -178,7 +271,14 @@ extern rte_power_uncore_freq_change_t rte_power_uncore_freq_max;
  *
  * This function should NOT be called in the fast path.
  */
-extern rte_power_uncore_freq_change_t rte_power_uncore_freq_min;
+static inline uint32_t
+rte_power_uncore_freq_min(unsigned int pkg, unsigned int die)
+{
+	struct rte_power_uncore_ops *ops;
+
+	ops = rte_power_get_uncore_ops(rte_power_get_uncore_env());
+	return ops->freq_min(pkg, die);
+}
 
 /**
  * Return the list of available frequencies in the index array.
@@ -200,10 +300,15 @@ extern rte_power_uncore_freq_change_t rte_power_uncore_freq_min;
  *  - The number of available index's in frequency array.
  *  - Negative on error.
  */
-typedef int (*rte_power_uncore_freqs_t)(unsigned int pkg, unsigned int die,
-		uint32_t *freqs, uint32_t num);
+static inline uint32_t
+rte_power_uncore_freqs(unsigned int pkg, unsigned int die,
+		uint32_t *freqs, uint32_t num)
+{
+	struct rte_power_uncore_ops *ops;
 
-extern rte_power_uncore_freqs_t rte_power_uncore_freqs;
+	ops = rte_power_get_uncore_ops(rte_power_get_uncore_env());
+	return ops->get_avail_freqs(pkg, die, freqs, num);
+}
 
 /**
  * Return the list length of available frequencies in the index array.
@@ -221,9 +326,14 @@ extern rte_power_uncore_freqs_t rte_power_uncore_freqs;
  *  - The number of available index's in frequency array.
  *  - Negative on error.
  */
-typedef int (*rte_power_uncore_get_num_freqs_t)(unsigned int pkg, unsigned int die);
+static inline int
+rte_power_uncore_get_num_freqs(unsigned int pkg, unsigned int die)
+{
+	struct rte_power_uncore_ops *ops;
 
-extern rte_power_uncore_get_num_freqs_t rte_power_uncore_get_num_freqs;
+	ops = rte_power_get_uncore_ops(rte_power_get_uncore_env());
+	return ops->get_num_freqs(pkg, die);
+}
 
 /**
  * Return the number of packages (CPUs) on a system
@@ -235,9 +345,14 @@ extern rte_power_uncore_get_num_freqs_t rte_power_uncore_get_num_freqs;
  *  - Zero on error.
  *  - Number of package on system on success.
  */
-typedef unsigned int (*rte_power_uncore_get_num_pkgs_t)(void);
+static inline unsigned int
+rte_power_uncore_get_num_pkgs(void)
+{
+	struct rte_power_uncore_ops *ops;
 
-extern rte_power_uncore_get_num_pkgs_t rte_power_uncore_get_num_pkgs;
+	ops = rte_power_get_uncore_ops(rte_power_get_uncore_env());
+	return ops->get_num_pkgs(void);
+}
 
 /**
  * Return the number of dies for pakckages (CPUs) specified
@@ -253,9 +368,14 @@ extern rte_power_uncore_get_num_pkgs_t rte_power_uncore_get_num_pkgs;
  *  - Zero on error.
  *  - Number of dies for package on sucecss.
  */
-typedef unsigned int (*rte_power_uncore_get_num_dies_t)(unsigned int pkg);
+static inline unsigned int
+rte_power_uncore_get_num_dies(unsigned int pkg)
+{
+	struct rte_power_uncore_ops *ops;
 
-extern rte_power_uncore_get_num_dies_t rte_power_uncore_get_num_dies;
+	ops = rte_power_get_uncore_ops(rte_power_get_uncore_env());
+	return ops->get_num_dies(pkg);
+}
 
 #ifdef __cplusplus
 }
diff --git a/lib/power/version.map b/lib/power/version.map
index 2f89645ec2..d8a6f9436c 100644
--- a/lib/power/version.map
+++ b/lib/power/version.map
@@ -57,6 +57,7 @@ INTERNAL {
        global:
 
        rte_power_register_ops;
+       rte_power_register_uncore_ops;
        cpufreq_check_scaling_driver;
        power_set_governor;
        open_core_sysfs_file;
-- 
2.25.1