On 3/23/26 15:10, Alex Deucher wrote:
On Fri, Mar 20, 2026 at 5:19 PM Amber Lin <[email protected]> wrote:
In a multi-XCC GPU, pass the master XCC's ID to amdgpu_mes_suspend,
amdgpu_mes_resume, and detect_and_reset_hung_queues so the command will be
sent to the matching master MES when the compute partition mode is not
SPX.

Signed-off-by: Amber Lin <[email protected]>
---
  drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c            |  7 +++++--
  drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h            |  9 +++++----
  drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c             |  2 +-
  drivers/gpu/drm/amd/amdgpu/mes_userqueue.c         |  2 +-
  drivers/gpu/drm/amd/amdgpu/mes_v12_1.c             | 14 +-------------
  .../gpu/drm/amd/amdkfd/kfd_device_queue_manager.c  |  4 ++--
  6 files changed, 15 insertions(+), 23 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
index 710bca87c32b..4f44b933e373 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
@@ -300,7 +300,7 @@ void amdgpu_mes_fini(struct amdgpu_device *adev)
         mutex_destroy(&adev->mes.mutex_hidden);
  }

-int amdgpu_mes_suspend(struct amdgpu_device *adev)
+int amdgpu_mes_suspend(struct amdgpu_device *adev, uint32_t xcc_id)
  {
         struct mes_suspend_gang_input input;
         int r;
@@ -310,6 +310,7 @@ int amdgpu_mes_suspend(struct amdgpu_device *adev)

         memset(&input, 0x0, sizeof(struct mes_suspend_gang_input));
         input.suspend_all_gangs = 1;
+       input.xcc_id = xcc_id;

         /*
          * Avoid taking any other locks under MES lock to avoid circular
@@ -324,7 +325,7 @@ int amdgpu_mes_suspend(struct amdgpu_device *adev)
         return r;
  }

-int amdgpu_mes_resume(struct amdgpu_device *adev)
+int amdgpu_mes_resume(struct amdgpu_device *adev, uint32_t xcc_id)
  {
         struct mes_resume_gang_input input;
         int r;
@@ -334,6 +335,7 @@ int amdgpu_mes_resume(struct amdgpu_device *adev)

         memset(&input, 0x0, sizeof(struct mes_resume_gang_input));
         input.resume_all_gangs = 1;
+       input.xcc_id = xcc_id;

         /*
          * Avoid taking any other locks under MES lock to avoid circular
@@ -462,6 +464,7 @@ int amdgpu_mes_detect_and_reset_hung_queues(struct 
amdgpu_device *adev,
                 adev->mes.hung_queue_db_array_size * sizeof(u32));
         input.queue_type = queue_type;
         input.detect_only = detect_only;
+       input.xcc_id = xcc_id;

         r = adev->mes.funcs->detect_and_reset_hung_queues(&adev->mes,
                                                           &input);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
index 2e6ae9f84db0..643b4f8d757a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
@@ -325,8 +325,9 @@ struct mes_reset_queue_input {
  };

  struct mes_detect_and_reset_queue_input {
-       uint32_t                           queue_type;
-       bool                               detect_only;
+       uint32_t        queue_type;
+       bool            detect_only;
+       uint32_t        xcc_id;
  };

  struct mes_inv_tlbs_pasid_input {
@@ -442,8 +443,8 @@ int amdgpu_mes_init_microcode(struct amdgpu_device *adev, 
int pipe);
  int amdgpu_mes_init(struct amdgpu_device *adev);
  void amdgpu_mes_fini(struct amdgpu_device *adev);

-int amdgpu_mes_suspend(struct amdgpu_device *adev);
-int amdgpu_mes_resume(struct amdgpu_device *adev);
+int amdgpu_mes_suspend(struct amdgpu_device *adev, uint32_t xcc_id);
+int amdgpu_mes_resume(struct amdgpu_device *adev, uint32_t xcc_id);

  int amdgpu_mes_map_legacy_queue(struct amdgpu_device *adev,
                                 struct amdgpu_ring *ring, uint32_t xcc_id);
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c 
b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
index 78d1f3eb522e..35734d34763a 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
@@ -5200,7 +5200,7 @@ static int gfx_v11_0_post_soft_reset(struct 
amdgpu_ip_block *ip_block)
         /**
          * GFX soft reset will impact MES, need resume MES when do GFX soft 
reset
          */
-       return amdgpu_mes_resume(adev);
+       return amdgpu_mes_resume(adev, 0);
  }

  static uint64_t gfx_v11_0_get_gpu_clock_counter(struct amdgpu_device *adev)
diff --git a/drivers/gpu/drm/amd/amdgpu/mes_userqueue.c 
b/drivers/gpu/drm/amd/amdgpu/mes_userqueue.c
index 9508709abd49..d02a84711394 100644
--- a/drivers/gpu/drm/amd/amdgpu/mes_userqueue.c
+++ b/drivers/gpu/drm/amd/amdgpu/mes_userqueue.c
@@ -266,7 +266,7 @@ static int mes_userq_detect_and_reset(struct amdgpu_device 
*adev,

         if (found_hung_queue) {
                 /* Resume scheduling after hang recovery */
-               r = amdgpu_mes_resume(adev);
+               r = amdgpu_mes_resume(adev, input.xcc_id);
         }

         return r;
diff --git a/drivers/gpu/drm/amd/amdgpu/mes_v12_1.c 
b/drivers/gpu/drm/amd/amdgpu/mes_v12_1.c
index 70d80c2aed52..4b279259b9d3 100644
--- a/drivers/gpu/drm/amd/amdgpu/mes_v12_1.c
+++ b/drivers/gpu/drm/amd/amdgpu/mes_v12_1.c
@@ -1888,24 +1888,12 @@ static int mes_v12_1_hw_fini(struct amdgpu_ip_block 
*ip_block)

  static int mes_v12_1_suspend(struct amdgpu_ip_block *ip_block)
  {
-       int r;
-
-       r = amdgpu_mes_suspend(ip_block->adev);
-       if (r)
-               return r;
-
         return mes_v12_1_hw_fini(ip_block);
  }

  static int mes_v12_1_resume(struct amdgpu_ip_block *ip_block)
  {
-       int r;
-
-       r = mes_v12_1_hw_init(ip_block);
-       if (r)
-               return r;
-
-       return amdgpu_mes_resume(ip_block->adev);
+       return mes_v12_1_hw_init(ip_block);
These changes seem unrelated.  Should these hunks be a separate patch?

Alex
Yes I'll separate them into another patch
  }

  static int mes_v12_1_early_init(struct amdgpu_ip_block *ip_block)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c 
b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
index 18bc5ba25f8f..ec8d7f4be840 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
@@ -367,7 +367,7 @@ static int suspend_all_queues_mes(struct 
device_queue_manager *dqm)
         if (!down_read_trylock(&adev->reset_domain->sem))
                 return -EIO;

-       r = amdgpu_mes_suspend(adev);
+       r = amdgpu_mes_suspend(adev, ffs(dqm->dev->xcc_mask) - 1);
         up_read(&adev->reset_domain->sem);

         if (r) {
@@ -387,7 +387,7 @@ static int resume_all_queues_mes(struct 
device_queue_manager *dqm)
         if (!down_read_trylock(&adev->reset_domain->sem))
                 return -EIO;

-       r = amdgpu_mes_resume(adev);
+       r = amdgpu_mes_resume(adev, ffs(dqm->dev->xcc_mask) - 1);
         up_read(&adev->reset_domain->sem);

         if (r) {
--
2.43.0


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