From: Kevin Wang <kevin1.wang@amd.com>
Date: Mon, 22 Apr 2019 06:40:30 +0000 (+0800)
Subject: drm/amd/powerplay: add helper function of smu_set_hard_freq_range
X-Git-Tag: v5.3-rc1~81^2~10^2~248
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=3366561767209326d3a6d4d2c727788beca7fcea;p=linux.git

drm/amd/powerplay: add helper function of smu_set_hard_freq_range

add this function to get dpm clock information.

Signed-off-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
index dd06d23bb188..6183b8f6d6c1 100644
--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
@@ -93,6 +93,39 @@ int smu_set_soft_freq_range(struct smu_context *smu, enum smu_clk_type clk_type,
 	return ret;
 }
 
+int smu_set_hard_freq_range(struct smu_context *smu, enum smu_clk_type clk_type,
+			    uint32_t min, uint32_t max)
+{
+	int ret = 0, clk_id = 0;
+	uint32_t param;
+
+	if (min <= 0 && max <= 0)
+		return -EINVAL;
+
+	clk_id = smu_clk_get_index(smu, clk_type);
+	if (clk_id < 0)
+		return clk_id;
+
+	if (max > 0) {
+		param = (uint32_t)((clk_id << 16) | (max & 0xffff));
+		ret = smu_send_smc_msg_with_param(smu, SMU_MSG_SetHardMaxByFreq,
+						  param);
+		if (ret)
+			return ret;
+	}
+
+	if (min > 0) {
+		param = (uint32_t)((clk_id << 16) | (min & 0xffff));
+		ret = smu_send_smc_msg_with_param(smu, SMU_MSG_SetHardMinByFreq,
+						  param);
+		if (ret)
+			return ret;
+	}
+
+
+	return ret;
+}
+
 int smu_get_dpm_freq_range(struct smu_context *smu, enum smu_clk_type clk_type,
 			   uint32_t *min, uint32_t *max)
 {
diff --git a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
index b1d91286b447..e0d726b02d8c 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
@@ -943,4 +943,6 @@ int smu_get_dpm_freq_range(struct smu_context *smu, enum smu_clk_type clk_type,
 			   uint32_t *min, uint32_t *max);
 int smu_set_soft_freq_range(struct smu_context *smu, enum smu_clk_type clk_type,
 			    uint32_t min, uint32_t max);
+int smu_set_hard_freq_range(struct smu_context *smu, enum smu_clk_type clk_type,
+			    uint32_t min, uint32_t max);
 #endif