6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Lijo Lazar <lijo.lazar@xxxxxxx>
commit 3ce3f85787352fa48fc02ef6cbd7a5e5aba93347 upstream.
For DPX mode, the number of memory partitions supported should be less
than or equal to 2.
Fixes: 1589c82a1085 ("drm/amdgpu: Check memory ranges for valid xcp mode")
Signed-off-by: Lijo Lazar <lijo.lazar@xxxxxxx>
Reviewed-by: Hawking Zhang <Hawking.Zhang@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
(cherry picked from commit 990c4f580742de7bb78fa57420ffd182fc3ab4cd)
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/aqua_vanjaram.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/amdgpu/aqua_vanjaram.c
+++ b/drivers/gpu/drm/amd/amdgpu/aqua_vanjaram.c
@@ -440,7 +440,7 @@ static bool __aqua_vanjaram_is_valid_mod
case AMDGPU_SPX_PARTITION_MODE:
return adev->gmc.num_mem_partitions == 1 && num_xcc > 0;
case AMDGPU_DPX_PARTITION_MODE:
- return adev->gmc.num_mem_partitions != 8 && (num_xcc % 4) == 0;
+ return adev->gmc.num_mem_partitions <= 2 && (num_xcc % 4) == 0;
case AMDGPU_TPX_PARTITION_MODE:
return (adev->gmc.num_mem_partitions == 1 ||
adev->gmc.num_mem_partitions == 3) &&
