Re: [PATCH 04/18] drm/amd/pm: add inst to set_powergating_by_smu

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On 2024-10-04 15:14, Alex Deucher wrote:
On Fri, Oct 4, 2024 at 2:45 PM <boyuan.zhang@xxxxxxx> wrote:
From: Boyuan Zhang <boyuan.zhang@xxxxxxx>

Add an instance parameter to set_powergating_by_smu() function, and
re-write all amd_pm functions accordingly. Then use the instance to
call smu_dpm_set_vcn_enable().

v2: remove duplicated functions.

remove for-loop in smu_dpm_set_power_gate(), and temporarily move it to
to amdgpu_dpm_set_powergating_by_smu(), in order to keep the exact same
logic as before, until further separation in next patch.

Signed-off-by: Boyuan Zhang <boyuan.zhang@xxxxxxx>
---
  drivers/gpu/drm/amd/include/kgd_pp_interface.h   |  4 +++-
  drivers/gpu/drm/amd/pm/amdgpu_dpm.c              | 10 ++++++++--
  drivers/gpu/drm/amd/pm/legacy-dpm/kv_dpm.c       |  4 +++-
  drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c |  4 +++-
  drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c        | 14 ++++++--------
  5 files changed, 23 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/amd/include/kgd_pp_interface.h b/drivers/gpu/drm/amd/include/kgd_pp_interface.h
index 2fa71f68205e..f24bc61df9a7 100644
--- a/drivers/gpu/drm/amd/include/kgd_pp_interface.h
+++ b/drivers/gpu/drm/amd/include/kgd_pp_interface.h
@@ -405,7 +405,9 @@ struct amd_pm_funcs {
         int (*load_firmware)(void *handle);
         int (*wait_for_fw_loading_complete)(void *handle);
         int (*set_powergating_by_smu)(void *handle,
-                               uint32_t block_type, bool gate);
+                               uint32_t block_type,
+                               bool gate,
+                               int inst);
         int (*set_clockgating_by_smu)(void *handle, uint32_t msg_id);
         int (*set_power_limit)(void *handle, uint32_t n);
         int (*get_power_limit)(void *handle, uint32_t *limit,
diff --git a/drivers/gpu/drm/amd/pm/amdgpu_dpm.c b/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
index 9dc82f4d7c93..bcedbeec082f 100644
--- a/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
@@ -88,7 +88,6 @@ int amdgpu_dpm_set_powergating_by_smu(struct amdgpu_device *adev, uint32_t block
         case AMD_IP_BLOCK_TYPE_UVD:
         case AMD_IP_BLOCK_TYPE_VCE:
         case AMD_IP_BLOCK_TYPE_GFX:
-       case AMD_IP_BLOCK_TYPE_VCN:
         case AMD_IP_BLOCK_TYPE_SDMA:
         case AMD_IP_BLOCK_TYPE_JPEG:
         case AMD_IP_BLOCK_TYPE_GMC:
@@ -96,7 +95,14 @@ int amdgpu_dpm_set_powergating_by_smu(struct amdgpu_device *adev, uint32_t block
         case AMD_IP_BLOCK_TYPE_VPE:
                 if (pp_funcs && pp_funcs->set_powergating_by_smu)
                         ret = (pp_funcs->set_powergating_by_smu(
-                               (adev)->powerplay.pp_handle, block_type, gate));
+                               (adev)->powerplay.pp_handle, block_type, gate, 0));
+               break;
+       case AMD_IP_BLOCK_TYPE_VCN:
+               if (pp_funcs && pp_funcs->set_powergating_by_smu) {
+                       for (int i = 0; i < adev->vcn.num_vcn_inst; i++)
+                               ret = (pp_funcs->set_powergating_by_smu(
+                                       (adev)->powerplay.pp_handle, block_type, gate, i));
+               }
                 break;
         default:
                 break;
diff --git a/drivers/gpu/drm/amd/pm/legacy-dpm/kv_dpm.c b/drivers/gpu/drm/amd/pm/legacy-dpm/kv_dpm.c
index 2cd6cb991f29..af7da780b58b 100644
--- a/drivers/gpu/drm/amd/pm/legacy-dpm/kv_dpm.c
+++ b/drivers/gpu/drm/amd/pm/legacy-dpm/kv_dpm.c
@@ -3287,7 +3287,9 @@ static int kv_dpm_read_sensor(void *handle, int idx,
  }

  static int kv_set_powergating_by_smu(void *handle,
-                               uint32_t block_type, bool gate)
+                               uint32_t block_type,
+                               bool gate,
+                               int inst)
  {
         switch (block_type) {
         case AMD_IP_BLOCK_TYPE_UVD:
diff --git a/drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c
index f193c77cc141..de5ee1c5503f 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c
@@ -1241,7 +1241,9 @@ static void pp_dpm_powergate_sdma(void *handle, bool gate)
  }

  static int pp_set_powergating_by_smu(void *handle,
-                               uint32_t block_type, bool gate)
+                               uint32_t block_type,
+                               bool gate,
+                               int inst)
  {
         int ret = 0;

diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index 786241fa8d2c..0da84e390d0d 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -353,10 +353,10 @@ static int smu_set_mall_enable(struct smu_context *smu)
   */
  static int smu_dpm_set_power_gate(void *handle,
                                   uint32_t block_type,
-                                 bool gate)
+                                 bool gate,
+                                 int inst)
  {
         struct smu_context *smu = handle;
-       struct amdgpu_device *adev = smu->adev;
         int ret = 0;

         if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled) {
@@ -373,12 +373,10 @@ static int smu_dpm_set_power_gate(void *handle,
          */
         case AMD_IP_BLOCK_TYPE_UVD:
         case AMD_IP_BLOCK_TYPE_VCN:
-               for (int i = 0; i < adev->vcn.num_vcn_inst; i++) {
-                       ret = smu_dpm_set_vcn_enable(smu, !gate, i);
-                       if (ret)
-                               dev_err(smu->adev->dev, "Failed to power %s VCN!\n",
-                                       gate ? "gate" : "ungate");
-               }
+               ret = smu_dpm_set_vcn_enable(smu, !gate, inst);
+               if (ret)
+                       dev_err(smu->adev->dev, "Failed to power %s VCN!\n",
+                               gate ? "gate" : "ungate");
Might want to note the instance in the error message.

Alex
Fixed in new patch set just submitted. (patch 04)

Thanks
Boyuan

                 break;
         case AMD_IP_BLOCK_TYPE_GFX:
                 ret = smu_gfx_off_control(smu, gate);
--
2.34.1




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