Ping..
> -----Original Message-----
> From: Evan Quan <evan.q...@amd.com>
> Sent: 2019年8月23日 12:49
> To: amd-gfx@lists.freedesktop.org
> Cc: Quan, Evan <evan.q...@amd.com>
> Subject: [PATCH] drm/amd/powerplay: update cached feature enablement
> status V3
>
> Need to update in cache feature enablement status after pp_feature
> settings. Another fix for the commit below:
> drm/amd/powerplay: implment sysfs feature status function in smu
>
> V2: update smu_feature_update_enable_state() and relates
> V3: use bitmap_or and bitmap_andnot
>
> Change-Id: I90e29b0d839df26825d5993212f6097c7ad4bebf
> Signed-off-by: Evan Quan <evan.q...@amd.com>
> ---
> drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 101 +++++++++--------
> -
> .../gpu/drm/amd/powerplay/inc/amdgpu_smu.h | 1 -
> 2 files changed, 49 insertions(+), 53 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
> b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
> index 4df7fb6eaf3c..c8c00966a621 100644
> --- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
> +++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
> @@ -94,6 +94,52 @@ size_t smu_sys_get_pp_feature_mask(struct
> smu_context *smu, char *buf)
> return size;
> }
>
> +static int smu_feature_update_enable_state(struct smu_context *smu,
> + uint64_t feature_mask,
> + bool enabled)
> +{
> + struct smu_feature *feature = &smu->smu_feature;
> + uint32_t feature_low = 0, feature_high = 0;
> + int ret = 0;
> +
> + if (!smu->pm_enabled)
> + return ret;
> +
> + feature_low = (feature_mask >> 0 ) & 0xffffffff;
> + feature_high = (feature_mask >> 32) & 0xffffffff;
> +
> + 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;
> + }
> +
> + mutex_lock(&feature->mutex);
> + if (enabled)
> + bitmap_or(feature->enabled, feature->enabled,
> + (unsigned long *)(&feature_mask),
> SMU_FEATURE_MAX);
> + else
> + bitmap_andnot(feature->enabled, feature->enabled,
> + (unsigned long *)(&feature_mask),
> SMU_FEATURE_MAX);
> + mutex_unlock(&feature->mutex);
> +
> + return ret;
> +}
> +
> int smu_sys_set_pp_feature_mask(struct smu_context *smu, uint64_t
> new_mask) {
> int ret = 0;
> @@ -591,41 +637,7 @@ int smu_feature_init_dpm(struct smu_context
> *smu)
>
> return ret;
> }
> -int smu_feature_update_enable_state(struct smu_context *smu, uint64_t
> feature_mask, bool enabled) -{
> - uint32_t feature_low = 0, feature_high = 0;
> - int ret = 0;
> -
> - if (!smu->pm_enabled)
> - return ret;
> -
> - feature_low = (feature_mask >> 0 ) & 0xffffffff;
> - feature_high = (feature_mask >> 32) & 0xffffffff;
> -
> - 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;
> -}
>
> int smu_feature_is_enabled(struct smu_context *smu, enum
> smu_feature_mask mask) { @@ -651,8 +663,6 @@ int
> smu_feature_set_enabled(struct smu_context *smu, enum
> smu_feature_mask mask, {
> struct smu_feature *feature = &smu->smu_feature;
> int feature_id;
> - uint64_t feature_mask = 0;
> - int ret = 0;
>
> feature_id = smu_feature_get_index(smu, mask);
> if (feature_id < 0)
> @@ -660,22 +670,9 @@ int smu_feature_set_enabled(struct smu_context
> *smu, enum smu_feature_mask mask,
>
> WARN_ON(feature_id > feature->feature_num);
>
> - feature_mask = 1ULL << feature_id;
> -
> - mutex_lock(&feature->mutex);
> - ret = smu_feature_update_enable_state(smu, feature_mask,
> enable);
> - if (ret)
> - goto failed;
> -
> - if (enable)
> - test_and_set_bit(feature_id, feature->enabled);
> - else
> - test_and_clear_bit(feature_id, feature->enabled);
> -
> -failed:
> - mutex_unlock(&feature->mutex);
> -
> - return ret;
> + return smu_feature_update_enable_state(smu,
> + 1ULL << feature_id,
> + enable);
> }
>
> int smu_feature_is_supported(struct smu_context *smu, enum
> smu_feature_mask mask) diff --git
> a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
> b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
> index e80c81552d29..fbf68fd42b93 100644
> --- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
> +++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
> @@ -807,7 +807,6 @@ enum amd_dpm_forced_level
> smu_get_performance_level(struct smu_context *smu); int
> smu_force_performance_level(struct smu_context *smu, enum
> amd_dpm_forced_level level); int smu_set_display_count(struct
> smu_context *smu, uint32_t count); bool smu_clk_dpm_is_enabled(struct
> smu_context *smu, enum smu_clk_type clk_type); -int
> smu_feature_update_enable_state(struct smu_context *smu, uint64_t
> feature_mask, bool enabled); const char *smu_get_message_name(struct
> smu_context *smu, enum smu_message_type type); const char
> *smu_get_feature_name(struct smu_context *smu, enum
> smu_feature_mask feature); size_t smu_sys_get_pp_feature_mask(struct
> smu_context *smu, char *buf);
> --
> 2.23.0
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