Re: [PATCH v2 1/3] drm/amdgpu: Fetch MES scheduler/KIQ versions

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Am 2022-06-10 um 13:13 schrieb Graham Sider:
Store MES scheduler and MES KIQ version numbers in amdgpu_mes for GFX11.

Signed-off-by: Graham Sider <Graham.Sider@xxxxxxx>

Acked-by: Felix Kuehling <Felix.Kuehling@xxxxxxx>


---
  drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h |  3 +++
  drivers/gpu/drm/amd/amdgpu/mes_v11_0.c  | 12 ++++++++++++
  2 files changed, 15 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
index 92ddee5e33db..aa06c8396ee0 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
@@ -64,6 +64,9 @@ struct amdgpu_mes {
spinlock_t queue_id_lock; + uint32_t sched_version;
+	uint32_t			kiq_version;
+
  	uint32_t                        total_max_queue;
  	uint32_t                        doorbell_id_offset;
  	uint32_t                        max_doorbell_slices;
diff --git a/drivers/gpu/drm/amd/amdgpu/mes_v11_0.c b/drivers/gpu/drm/amd/amdgpu/mes_v11_0.c
index e4eb87689f7f..2a9ef308e71c 100644
--- a/drivers/gpu/drm/amd/amdgpu/mes_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/mes_v11_0.c
@@ -890,6 +890,18 @@ static int mes_v11_0_queue_init(struct amdgpu_device *adev,
  		mes_v11_0_queue_init_register(ring);
  	}
+ /* get MES scheduler/KIQ versions */
+	mutex_lock(&adev->srbm_mutex);
+	soc21_grbm_select(adev, 3, pipe, 0, 0);
+
+	if (pipe == AMDGPU_MES_SCHED_PIPE)
+		adev->mes.sched_version = RREG32_SOC15(GC, 0, regCP_MES_GP3_LO);
+	else if (pipe == AMDGPU_MES_KIQ_PIPE && adev->enable_mes_kiq)
+		adev->mes.kiq_version = RREG32_SOC15(GC, 0, regCP_MES_GP3_LO);
+
+	soc21_grbm_select(adev, 0, 0, 0, 0);
+	mutex_unlock(&adev->srbm_mutex);
+
  	return 0;
  }



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