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| author | Mukul Joshi <mukul.joshi@amd.com> | 2022-09-29 12:07:49 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-06-09 09:46:54 -0400 |
| commit | cb30544e3cadf2164a123859519521dc474d21eb (patch) | |
| tree | 234195bafbc2930c41753190ab3e4d1c9f034b8f /drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c | |
| parent | 02ee3b02d77661c593c7b0e49f5baa4aa0974024 (diff) | |
| download | lwn-cb30544e3cadf2164a123859519521dc474d21eb.tar.gz lwn-cb30544e3cadf2164a123859519521dc474d21eb.zip | |
drm/amdgpu: Fix failure when switching to DPX mode
Fix the if condition which causes dynamic repartitioning
to fail when trying to switch to DPX mode.
Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Amber Lin <Amber.Lin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c index 69bac5b801ce..2f6d85090b55 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c @@ -1216,7 +1216,11 @@ 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"))) { |