From: Kevin Wang <kevin1.wang@xxxxxxx>
change:
1.when enable smu feature, the feature id will store sw-bitmap and smu
controller.
2.add feature mutex lock to protect feature bitmap changed when update
feature enabled state.
Signed-off-by: Kevin Wang <kevin1.wang@xxxxxxx>
Reviewed-by: Huang Rui <ray.huang@xxxxxxx>
---
drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 45 +++++++++++++++++++++---
drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h | 4 +++
drivers/gpu/drm/amd/powerplay/smu_v11_0.c | 47 ++++++++++++++++++++++++--
3 files changed, 89 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
index 912f44e..9262d98 100644
--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
@@ -163,16 +163,20 @@ int smu_feature_init_dpm(struct smu_context *smu)
int ret = 0;
uint32_t unallowed_feature_mask[SMU_FEATURE_MAX/32];
+ mutex_lock(&feature->mutex);
bitmap_fill(feature->allowed, SMU_FEATURE_MAX);
+ mutex_unlock(&feature->mutex);
ret = smu_get_unallowed_feature_mask(smu, unallowed_feature_mask,
SMU_FEATURE_MAX/32);
if (ret)
return ret;
+ mutex_lock(&feature->mutex);
bitmap_andnot(feature->allowed, feature->allowed,
(unsigned long *)unallowed_feature_mask,
feature->feature_num);
+ mutex_unlock(&feature->mutex);
return ret;
}
@@ -180,38 +184,70 @@ int smu_feature_init_dpm(struct smu_context *smu)
int smu_feature_is_enabled(struct smu_context *smu, int feature_id)
{
struct smu_feature *feature = &smu->smu_feature;
+ int ret = 0;
+
WARN_ON(feature_id > feature->feature_num);
- return test_bit(feature_id, feature->enabled);
+
+ mutex_lock(&feature->mutex);
+ ret = test_bit(feature_id, feature->enabled);
+ mutex_unlock(&feature->mutex);
+
+ return ret;
}
int smu_feature_set_enabled(struct smu_context *smu, int feature_id, bool enable)
{
struct smu_feature *feature = &smu->smu_feature;
+ int ret = 0;
+
WARN_ON(feature_id > feature->feature_num);
+
+ mutex_lock(&feature->mutex);
+ ret = smu_feature_update_enable_state(smu, feature_id, enable);
+ if (ret)
+ goto failed;
+
if (enable)
test_and_set_bit(feature_id, feature->enabled);
else
test_and_clear_bit(feature_id, feature->enabled);
- return 0;
+
+failed:
+ mutex_unlock(&feature->mutex);
+
+ return ret;
}
int smu_feature_is_supported(struct smu_context *smu, int feature_id)
{
struct smu_feature *feature = &smu->smu_feature;
+ int ret = 0;
+
WARN_ON(feature_id > feature->feature_num);
- return test_bit(feature_id, feature->supported);
+
+ mutex_lock(&feature->mutex);
+ ret = test_bit(feature_id, feature->supported);
+ mutex_unlock(&feature->mutex);
+
+ return ret;
}
int smu_feature_set_supported(struct smu_context *smu, int feature_id,
bool enable)
{
struct smu_feature *feature = &smu->smu_feature;
+ int ret = 0;
+
WARN_ON(feature_id > feature->feature_num);
+
+ mutex_unlock(&feature->mutex);
if (enable)
test_and_set_bit(feature_id, feature->supported);
else
test_and_clear_bit(feature_id, feature->supported);
- return 0;
+ mutex_unlock(&feature->mutex);
+
+ return ret;
}
static int smu_set_funcs(struct amdgpu_device *adev)
@@ -319,6 +355,7 @@ static int smu_sw_init(void *handle)
smu->pool_size = adev->pm.smu_prv_buffer_size;
smu->smu_feature.feature_num = SMU_FEATURE_MAX;
+ mutex_init(&smu->smu_feature.mutex);
bitmap_zero(smu->smu_feature.supported, SMU_FEATURE_MAX);
bitmap_zero(smu->smu_feature.enabled, SMU_FEATURE_MAX);
bitmap_zero(smu->smu_feature.allowed, SMU_FEATURE_MAX);
diff --git a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
index ddcfbd9..2c6923d 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
@@ -340,6 +340,7 @@ struct smu_feature
DECLARE_BITMAP(supported, SMU_FEATURE_MAX);
DECLARE_BITMAP(allowed, SMU_FEATURE_MAX);
DECLARE_BITMAP(enabled, SMU_FEATURE_MAX);
+ struct mutex mutex;
};
struct smu_clocks {
@@ -469,6 +470,7 @@ struct smu_funcs
int (*get_enabled_mask)(struct smu_context *smu, uint32_t *feature_mask, uint32_t num);
int (*enable_all_mask)(struct smu_context *smu);
int (*disable_all_mask)(struct smu_context *smu);
+ int (*update_feature_enable_state)(struct smu_context *smu, uint32_t feature_id, bool enabled);
int (*notify_display_change)(struct smu_context *smu);
int (*get_power_limit)(struct smu_context *smu);
int (*get_current_clk_freq)(struct smu_context *smu, uint32_t clk_id, uint32_t *value);
@@ -580,6 +582,8 @@ struct smu_funcs
((smu)->funcs->enable_all_mask? (smu)->funcs->enable_all_mask((smu)) : 0)
#define smu_feature_disable_all(smu) \
((smu)->funcs->disable_all_mask? (smu)->funcs->disable_all_mask((smu)) : 0)
+#define smu_feature_update_enable_state(smu, feature_id, enabled) \
+ ((smu)->funcs->update_feature_enable_state? (smu)->funcs->update_feature_enable_state((smu), (feature_id), (enabled)) : 0)
#define smu_notify_display_change(smu) \
((smu)->funcs->notify_display_change? (smu)->funcs->notify_display_change((smu)) : 0)
#define smu_store_powerplay_table(smu) \
diff --git a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
index 1304ba1..0662f40 100644
--- a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
+++ b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
@@ -613,27 +613,67 @@ static int smu_v11_0_init_display(struct smu_context *smu)
return ret;
}
+static int smu_v11_0_update_feature_enable_state(struct smu_context *smu, uint32_t feature_id, bool enabled)
+{
+ uint32_t feature_low = 0, feature_high = 0;
+ int ret = 0;
+
+ if (feature_id >= 0 && feature_id < 31)
+ feature_low = (1 << feature_id);
+ else if (feature_id > 31 && feature_id < 63)
+ feature_high = (1 << feature_id);
+ else
+ return -EINVAL;
+
+ if (enabled) {
+ ret = smu_send_smc_msg_with_param(smu, SMU_MSG_EnableSmuFeaturesLow,
+ feature_low);
+ if (ret)
+ return ret;
+ ret = smu_send_smc_msg_with_param(smu, SMU_MSG_EnableSmuFeaturesHigh,
+ feature_high);
+ if (ret)
+ return ret;
+
+ } else {
+ ret = smu_send_smc_msg_with_param(smu, SMU_MSG_DisableSmuFeaturesLow,
+ feature_low);
+ if (ret)
+ return ret;
+ ret = smu_send_smc_msg_with_param(smu, SMU_MSG_DisableSmuFeaturesHigh,
+ feature_high);
+ if (ret)
+ return ret;
+
+ }
+
+ return ret;
+}
+
static int smu_v11_0_set_allowed_mask(struct smu_context *smu)
{
struct smu_feature *feature = &smu->smu_feature;
int ret = 0;
uint32_t feature_mask[2];
+ mutex_lock(&feature->mutex);
if (bitmap_empty(feature->allowed, SMU_FEATURE_MAX) || feature->feature_num < 64)
- return -EINVAL;
+ goto failed;
bitmap_copy((unsigned long *)feature_mask, feature->allowed, 64);
ret = smu_send_smc_msg_with_param(smu, SMU_MSG_SetAllowedFeaturesMaskHigh,
feature_mask[1]);
if (ret)
- return ret;
+ goto failed;
ret = smu_send_smc_msg_with_param(smu, SMU_MSG_SetAllowedFeaturesMaskLow,
feature_mask[0]);
if (ret)
- return ret;
+ goto failed;
+failed:
+ mutex_unlock(&feature->mutex);
return ret;
}
@@ -1575,6 +1615,7 @@ static const struct smu_funcs smu_v11_0_funcs = {
.get_enabled_mask = smu_v11_0_get_enabled_mask,
.enable_all_mask = smu_v11_0_enable_all_mask,
.disable_all_mask = smu_v11_0_disable_all_mask,
+ .update_feature_enable_state = smu_v11_0_update_feature_enable_state,
.notify_display_change = smu_v11_0_notify_display_change,
.get_power_limit = smu_v11_0_get_power_limit,
.get_current_clk_freq = smu_v11_0_get_current_clk_freq,
--
2.7.4
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