89 lines
2.5 KiB
Diff
89 lines
2.5 KiB
Diff
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From 44f21855901b1fd618ac16b07dbd14e8fea4ee13 Mon Sep 17 00:00:00 2001
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From: Mario Limonciello <mario.limonciello@amd.com>
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Date: Sat, 31 Aug 2024 21:49:11 -0500
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Subject: cpufreq/amd-pstate: Export symbols for changing modes
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In order to effectively test all mode switch combinations export
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everything necessarily for amd-pstate-ut to trigger a mode switch.
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Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
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---
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drivers/cpufreq/amd-pstate.c | 23 ++++++++++-------------
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drivers/cpufreq/amd-pstate.h | 14 ++++++++++++++
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2 files changed, 24 insertions(+), 13 deletions(-)
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--- a/drivers/cpufreq/amd-pstate.c
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+++ b/drivers/cpufreq/amd-pstate.c
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@@ -60,18 +60,6 @@
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#define AMD_CPPC_EPP_BALANCE_POWERSAVE 0xBF
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#define AMD_CPPC_EPP_POWERSAVE 0xFF
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-/*
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- * enum amd_pstate_mode - driver working mode of amd pstate
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- */
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-enum amd_pstate_mode {
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- AMD_PSTATE_UNDEFINED = 0,
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- AMD_PSTATE_DISABLE,
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- AMD_PSTATE_PASSIVE,
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- AMD_PSTATE_ACTIVE,
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- AMD_PSTATE_GUIDED,
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- AMD_PSTATE_MAX,
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-};
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-
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static const char * const amd_pstate_mode_string[] = {
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[AMD_PSTATE_UNDEFINED] = "undefined",
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[AMD_PSTATE_DISABLE] = "disable",
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@@ -81,6 +69,14 @@ static const char * const amd_pstate_mod
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NULL,
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};
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+const char *amd_pstate_get_mode_string(enum amd_pstate_mode mode)
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+{
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+ if (mode < 0 || mode >= AMD_PSTATE_MAX)
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+ return NULL;
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+ return amd_pstate_mode_string[mode];
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+}
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+EXPORT_SYMBOL_GPL(amd_pstate_get_mode_string);
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+
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struct quirk_entry {
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u32 nominal_freq;
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u32 lowest_freq;
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@@ -1392,7 +1388,7 @@ static ssize_t amd_pstate_show_status(ch
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return sysfs_emit(buf, "%s\n", amd_pstate_mode_string[cppc_state]);
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}
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-static int amd_pstate_update_status(const char *buf, size_t size)
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+int amd_pstate_update_status(const char *buf, size_t size)
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{
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int mode_idx;
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@@ -1409,6 +1405,7 @@ static int amd_pstate_update_status(cons
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return 0;
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}
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+EXPORT_SYMBOL_GPL(amd_pstate_update_status);
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static ssize_t status_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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--- a/drivers/cpufreq/amd-pstate.h
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+++ b/drivers/cpufreq/amd-pstate.h
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@@ -103,4 +103,18 @@ struct amd_cpudata {
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bool boost_state;
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};
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+/*
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+ * enum amd_pstate_mode - driver working mode of amd pstate
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+ */
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+enum amd_pstate_mode {
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+ AMD_PSTATE_UNDEFINED = 0,
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+ AMD_PSTATE_DISABLE,
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+ AMD_PSTATE_PASSIVE,
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+ AMD_PSTATE_ACTIVE,
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+ AMD_PSTATE_GUIDED,
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+ AMD_PSTATE_MAX,
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+};
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+const char *amd_pstate_get_mode_string(enum amd_pstate_mode mode);
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+int amd_pstate_update_status(const char *buf, size_t size);
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+
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#endif /* _LINUX_AMD_PSTATE_H */
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