From: Alex Deucher <alexander.deucher@amd.com>
Date: Tue, 27 May 2025 14:13:31 +0000 (-0400)
Subject: drm/amdgpu: disable workload profile switching when OD is enabled
X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=5cccf10f652122a17b40df9d672ccf2ed69cd82f;p=linux-2.6-microblaze.git

drm/amdgpu: disable workload profile switching when OD is enabled

Users have reported that they have to reduce the level of undervolting
to acheive stability when dynamic workload profiles are enabled on
GC 10.3.x. Disable dynamic workload profiles if the user has enabled
OD.

Fixes: b9467983b774 ("drm/amdgpu: add dynamic workload profile switching for gfx10")
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4262
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.15.x
---

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
index 1db1e6ec0184..c5646af055ab 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
@@ -2228,6 +2228,9 @@ void amdgpu_gfx_profile_ring_begin_use(struct amdgpu_ring *ring)
 	enum PP_SMC_POWER_PROFILE profile;
 	int r;
 
+	if (amdgpu_dpm_is_overdrive_enabled(adev))
+		return;
+
 	if (adev->gfx.num_gfx_rings)
 		profile = PP_SMC_POWER_PROFILE_FULLSCREEN3D;
 	else
@@ -2258,6 +2261,11 @@ void amdgpu_gfx_profile_ring_begin_use(struct amdgpu_ring *ring)
 
 void amdgpu_gfx_profile_ring_end_use(struct amdgpu_ring *ring)
 {
+	struct amdgpu_device *adev = ring->adev;
+
+	if (amdgpu_dpm_is_overdrive_enabled(adev))
+		return;
+
 	atomic_dec(&ring->adev->gfx.total_submission_cnt);
 
 	schedule_delayed_work(&ring->adev->gfx.idle_work, GFX_PROFILE_IDLE_TIMEOUT);
diff --git a/drivers/gpu/drm/amd/pm/amdgpu_dpm.c b/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
index d98c95d1ed83..5c1cbdc122d2 100644
--- a/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
@@ -1697,6 +1697,28 @@ int amdgpu_dpm_is_overdrive_supported(struct amdgpu_device *adev)
 	}
 }
 
+int amdgpu_dpm_is_overdrive_enabled(struct amdgpu_device *adev)
+{
+	if (is_support_sw_smu(adev)) {
+		struct smu_context *smu = adev->powerplay.pp_handle;
+
+		return smu->od_enabled;
+	} else {
+		struct pp_hwmgr *hwmgr;
+
+		/*
+		 * dpm on some legacy asics don't carry od_enabled member
+		 * as its pp_handle is casted directly from adev.
+		 */
+		if (amdgpu_dpm_is_legacy_dpm(adev))
+			return false;
+
+		hwmgr = (struct pp_hwmgr *)adev->powerplay.pp_handle;
+
+		return hwmgr->od_enabled;
+	}
+}
+
 int amdgpu_dpm_set_pp_table(struct amdgpu_device *adev,
 			    const char *buf,
 			    size_t size)
diff --git a/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h b/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h
index c0f9ecb97fcc..768317ee1486 100644
--- a/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h
+++ b/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h
@@ -563,6 +563,7 @@ int amdgpu_dpm_get_smu_prv_buf_details(struct amdgpu_device *adev,
 				       void **addr,
 				       size_t *size);
 int amdgpu_dpm_is_overdrive_supported(struct amdgpu_device *adev);
+int amdgpu_dpm_is_overdrive_enabled(struct amdgpu_device *adev);
 int amdgpu_dpm_set_pp_table(struct amdgpu_device *adev,
 			    const char *buf,
 			    size_t size);