drm/amdgpu: allow multipipe policy on ASICs with one MEC

Lang Yu · alexdeucher · commit dc88063b8777 · 2023-01-18T23:21:16.000-05:00
Always enable multipipe policy on ASICs with GC VERSION &gt; 9.0.0
instead of MEC number &gt; 1.

This will allow multipipe policy on ASICs with one MEC,
e.g., gfx11 APUs.

Signed-off-by: Lang Yu &lt;Lang.Yu@amd.com&gt;
Reviewed-by: Aaron Liu &lt;aaron.liu@amd.com&gt;
Reviewed-by: Yifan Zhang &lt;yifan1.zhang@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Cc: stable@vger.kernel.org # 6.1.x
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
@@ -156,6 +156,9 @@ static bool amdgpu_gfx_is_compute_multipipe_capable(struct amdgpu_device *adev)
 		return amdgpu_compute_multipipe == 1;
 	}
 
+	if (adev->ip_versions[GC_HWIP][0] > IP_VERSION(9, 0, 0))
+		return true;
+
 	/* FIXME: spreading the queues across pipes causes perf regressions
 	 * on POLARIS11 compute workloads */
 	if (adev->asic_type == CHIP_POLARIS11)

Original file line number	Diff line number	Diff line change
`@@ -156,6 +156,9 @@ static bool amdgpu_gfx_is_compute_multipipe_capable(struct amdgpu_device *adev)`
`156`	`156`	`return amdgpu_compute_multipipe == 1;`
`157`	`157`	`}`
`158`	`158`
	`159`	`+ if (adev->ip_versions[GC_HWIP][0] > IP_VERSION(9, 0, 0))`
	`160`	`+ return true;`
	`161`	`+`
`159`	`162`	`/* FIXME: spreading the queues across pipes causes perf regressions`
`160`	`163`	`* on POLARIS11 compute workloads */`
`161`	`164`	`if (adev->asic_type == CHIP_POLARIS11)`