[PATCH 3/4] drm/amdgpu: Set memory partitions to 1 for SRIOV.

[Alex Deucher]

From: Gavin Wan <Gavin.Wan at amd.com>

For SRIOV, the memory partitions are set on host drover. Each VF only
has one memory partition. We need set the memory partitions to 1 on
guest driver for SRIOV.

V2: sqaush in fix ("drm/amdgpu: Fix memory range info of GC 9.4.3 VFs")

Signed-off-by: Gavin Wan <Gavin.Wan at amd.com>
Acked-by: Zhigang Luo <zhigang.luo at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index 394644d9d559..f000e0e89bd0 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -1346,6 +1346,9 @@ gmc_v9_0_get_memory_partition(struct amdgpu_device *adev, u32 *supp_modes)
 static enum amdgpu_memory_partition
 gmc_v9_0_query_memory_partition(struct amdgpu_device *adev)
 {
+	if (amdgpu_sriov_vf(adev))
+		return AMDGPU_NPS1_PARTITION_MODE;
+
 	return gmc_v9_0_get_memory_partition(adev, NULL);
 }
 
@@ -1897,7 +1900,10 @@ static int gmc_v9_0_init_mem_ranges(struct amdgpu_device *adev)
 	else
 		gmc_v9_0_init_sw_mem_ranges(adev, adev->gmc.mem_partitions);
 
-	valid = gmc_v9_0_validate_partition_info(adev);
+	if (amdgpu_sriov_vf(adev))
+		valid = true;
+	else
+		valid = gmc_v9_0_validate_partition_info(adev);
 	if (!valid) {
 		/* TODO: handle invalid case */
 		dev_WARN(adev->dev,
-- 
2.40.1