[PATCH 2/2] drm/amd/powerplay: add arcturus_is_dpm_running function for arcturus

[Chengming Gui]

add arcturus_is_dpm_running function

Signed-off-by: Chengming Gui <Jack.Gui at amd.com>
---
 drivers/gpu/drm/amd/powerplay/arcturus_ppt.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c b/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
index 03ce871..9107beb 100644
--- a/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
@@ -51,6 +51,15 @@
 #define SMU_FEATURES_HIGH_MASK       0xFFFFFFFF00000000
 #define SMU_FEATURES_HIGH_SHIFT      32
 
+#define SMC_DPM_FEATURE ( \
+	FEATURE_DPM_PREFETCHER_MASK | \
+	FEATURE_DPM_GFXCLK_MASK | \
+	FEATURE_DPM_UCLK_MASK | \
+	FEATURE_DPM_SOCCLK_MASK | \
+	FEATURE_DPM_MP0CLK_MASK | \
+	FEATURE_DPM_FCLK_MASK | \
+	FEATURE_DPM_XGMI_MASK)
+
 /* possible frequency drift (1Mhz) */
 #define EPSILON				1
 
@@ -1873,6 +1882,17 @@ static void arcturus_dump_pptable(struct smu_context *smu)
 
 }
 
+static bool arcturus_is_dpm_running(struct smu_context *smu)
+{
+	int ret = 0;
+	uint32_t feature_mask[2];
+	unsigned long feature_enabled;
+	ret = smu_feature_get_enabled_mask(smu, feature_mask, 2);
+	feature_enabled = (unsigned long)((uint64_t)feature_mask[0] |
+			   ((uint64_t)feature_mask[1] << 32));
+	return !!(feature_enabled & SMC_DPM_FEATURE);
+}
+
 static const struct pptable_funcs arcturus_ppt_funcs = {
 	/* translate smu index into arcturus specific index */
 	.get_smu_msg_index = arcturus_get_smu_msg_index,
@@ -1910,6 +1930,7 @@ static const struct pptable_funcs arcturus_ppt_funcs = {
 	/* debug (internal used) */
 	.dump_pptable = arcturus_dump_pptable,
 	.get_power_limit = arcturus_get_power_limit,
+	.is_dpm_running = arcturus_is_dpm_running,
 };
 
 void arcturus_set_ppt_funcs(struct smu_context *smu)
-- 
2.7.4