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From 475a29620f323d47e1a5231fb1c70cd9929ef53e Mon Sep 17 00:00:00 2001
From: Chengming Gui <Jack.Gui@amd.com>
Date: Thu, 17 Jan 2019 17:57:18 +0800
Subject: [PATCH 1446/2940] drm/amd/powerplay: add enable_umd_pstate functions
for SMU11
add enable_umd_pstate to support sys interface for SMU11.
Signed-off-by: Chengming Gui <Jack.Gui@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/include/amd_shared.h | 3 ++
drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 44 +++++++++++++++++++
.../gpu/drm/amd/powerplay/inc/amdgpu_smu.h | 4 ++
3 files changed, 51 insertions(+)
diff --git a/drivers/gpu/drm/amd/include/amd_shared.h b/drivers/gpu/drm/amd/include/amd_shared.h
index 470d7b89071a..574bf6e70763 100644
--- a/drivers/gpu/drm/amd/include/amd_shared.h
+++ b/drivers/gpu/drm/amd/include/amd_shared.h
@@ -137,6 +137,7 @@ enum DC_FEATURE_MASK {
DC_FBC_MASK = 0x1,
};
+enum amd_dpm_forced_level;
/**
* struct amd_ip_funcs - general hooks for managing amdgpu IP Blocks
*/
@@ -186,6 +187,8 @@ struct amd_ip_funcs {
enum amd_powergating_state state);
/** @get_clockgating_state: get current clockgating status */
void (*get_clockgating_state)(void *handle, u32 *flags);
+ /** @enable_umd_pstate: enable UMD powerstate */
+ int (*enable_umd_pstate)(void *handle, enum amd_dpm_forced_level *level);
};
diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
index 2a8669c89539..83fadcac18e6 100644
--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
@@ -940,6 +940,49 @@ static int smu_set_powergating_state(void *handle,
return 0;
}
+static int smu_enable_umd_pstate(void *handle,
+ enum amd_dpm_forced_level *level)
+{
+ uint32_t profile_mode_mask = AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD |
+ AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK |
+ AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK |
+ AMD_DPM_FORCED_LEVEL_PROFILE_PEAK;
+
+ struct smu_context *smu = (struct smu_context*)(handle);
+ struct smu_dpm_context *smu_dpm_ctx = &(smu->smu_dpm);
+ if (!smu_dpm_ctx->dpm_context)
+ return -EINVAL;
+
+ if (!(smu_dpm_ctx->dpm_level & profile_mode_mask)) {
+ /* enter umd pstate, save current level, disable gfx cg*/
+ if (*level & profile_mode_mask) {
+ smu_dpm_ctx->saved_dpm_level = smu_dpm_ctx->dpm_level;
+ smu_dpm_ctx->enable_umd_pstate = true;
+ amdgpu_device_ip_set_clockgating_state(smu->adev,
+ AMD_IP_BLOCK_TYPE_GFX,
+ AMD_CG_STATE_UNGATE);
+ amdgpu_device_ip_set_powergating_state(smu->adev,
+ AMD_IP_BLOCK_TYPE_GFX,
+ AMD_PG_STATE_UNGATE);
+ }
+ } else {
+ /* exit umd pstate, restore level, enable gfx cg*/
+ if (!(*level & profile_mode_mask)) {
+ if (*level == AMD_DPM_FORCED_LEVEL_PROFILE_EXIT)
+ *level = smu_dpm_ctx->saved_dpm_level;
+ smu_dpm_ctx->enable_umd_pstate = false;
+ amdgpu_device_ip_set_clockgating_state(smu->adev,
+ AMD_IP_BLOCK_TYPE_GFX,
+ AMD_CG_STATE_GATE);
+ amdgpu_device_ip_set_powergating_state(smu->adev,
+ AMD_IP_BLOCK_TYPE_GFX,
+ AMD_PG_STATE_GATE);
+ }
+ }
+
+ return 0;
+}
+
const struct amd_ip_funcs smu_ip_funcs = {
.name = "smu",
.early_init = smu_early_init,
@@ -956,6 +999,7 @@ const struct amd_ip_funcs smu_ip_funcs = {
.soft_reset = NULL,
.set_clockgating_state = smu_set_clockgating_state,
.set_powergating_state = smu_set_powergating_state,
+ .enable_umd_pstate = smu_enable_umd_pstate,
};
const struct amdgpu_ip_block_version smu_v11_0_ip_block =
diff --git a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
index 9d9e527bac3c..63cd1ba60dc2 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
@@ -316,6 +316,10 @@ struct smu_dpm_context {
uint32_t dpm_context_size;
void *dpm_context;
void *golden_dpm_context;
+ bool enable_umd_pstate;
+ enum amd_dpm_forced_level dpm_level;
+ enum amd_dpm_forced_level saved_dpm_level;
+ enum amd_dpm_forced_level requested_dpm_level;
struct smu_power_state *dpm_request_power_state;
struct smu_power_state *dpm_current_power_state;
struct mclock_latency_table *mclk_latency_table;
--
2.17.1
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