From: Mukul Joshi <mukul.joshi@xxxxxxx>
Fix the if condition which causes dynamic repartitioning
to fail when trying to switch to DPX mode.
Signed-off-by: Mukul Joshi <mukul.joshi@xxxxxxx>
Reviewed-by: Amber Lin <Amber.Lin@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
index a98c38a75504..c69e4f412963 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
@@ -1138,7 +1138,11 @@ static ssize_t amdgpu_gfx_set_compute_partition(struct device *dev,
if (!strncasecmp("SPX", buf, strlen("SPX"))) {
mode = AMDGPU_SPX_PARTITION_MODE;
} else if (!strncasecmp("DPX", buf, strlen("DPX"))) {
- if (num_xcc != 4 || num_xcc != 8)
+ /*
+ * DPX mode needs AIDs to be in multiple of 2.
+ * Each AID connects 2 XCCs.
+ */
+ if (num_xcc%4)
return -EINVAL;
mode = AMDGPU_DPX_PARTITION_MODE;
} else if (!strncasecmp("TPX", buf, strlen("TPX"))) {
--
2.39.2
