From: Mukul Joshi <[email protected]> Fix the if condition which causes dynamic repartitioning to fail when trying to switch to DPX mode.
Signed-off-by: Mukul Joshi <[email protected]> Reviewed-by: Amber Lin <[email protected]> Signed-off-by: Alex Deucher <[email protected]> --- 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
