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drm/amdgpu: validate user queue parameters

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Make sure these are set properly to ensure compatibility if
we ever update the IOCTL interface.

Reviewed-by: Prike Liang <Prike.Liang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2025-02-26 16:31:57 -05:00
parent ad6c120f68
commit 158bfbc72c
1 changed files with 14 additions and 0 deletions
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14
drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue.c
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@ -380,12 +380,26 @@ int amdgpu_userq_ioctl(struct drm_device *dev, void *data,
switch (args->in.op) {
case AMDGPU_USERQ_OP_CREATE:
if (args->in._pad)
return -EINVAL;
r = amdgpu_userqueue_create(filp, args);
if (r)
DRM_ERROR("Failed to create usermode queue\n");
break;
case AMDGPU_USERQ_OP_FREE:
if (args->in.ip_type ||
args->in.doorbell_handle ||
args->in.doorbell_offset ||
args->in._pad ||
args->in.queue_va ||
args->in.queue_size ||
args->in.rptr_va ||
args->in.wptr_va ||
args->in.wptr_va ||
args->in.mqd ||
args->in.mqd_size)
return -EINVAL;
r = amdgpu_userqueue_destroy(filp, args->in.queue_id);
if (r)
DRM_ERROR("Failed to destroy usermode queue\n");