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accel/amdxdna: Support submit commands without arguments

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The latest userspace runtime allows generating commands which do not
have any argument. Remove the corresponding check in driver IOCTL to
enable this use case.

Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://lore.kernel.org/r/20250507161500.2339701-1-lizhi.hou@amd.com
Link: https://lore.kernel.org/r/20250507161500.2339701-1-lizhi.hou@amd.com
This commit is contained in:
Lizhi Hou 2025-05-07 09:15:00 -07:00
parent 4fca684986
commit c065e46395
1 changed files with 12 additions and 10 deletions
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22
drivers/accel/amdxdna/amdxdna_ctx.c
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@ -496,11 +496,11 @@ static int amdxdna_drm_submit_execbuf(struct amdxdna_client *client,
struct amdxdna_drm_exec_cmd *args)
{
struct amdxdna_dev *xdna = client->xdna;
u32 *arg_bo_hdls;
u32 *arg_bo_hdls = NULL;
u32 cmd_bo_hdl;
int ret;
if (!args->arg_count || args->arg_count > MAX_ARG_COUNT) {
if (args->arg_count > MAX_ARG_COUNT) {
XDNA_ERR(xdna, "Invalid arg bo count %d", args->arg_count);
return -EINVAL;
}
@ -512,14 +512,16 @@ static int amdxdna_drm_submit_execbuf(struct amdxdna_client *client,
}
cmd_bo_hdl = (u32)args->cmd_handles;
arg_bo_hdls = kcalloc(args->arg_count, sizeof(u32), GFP_KERNEL);
if (!arg_bo_hdls)
return -ENOMEM;
ret = copy_from_user(arg_bo_hdls, u64_to_user_ptr(args->args),
args->arg_count * sizeof(u32));
if (ret) {
ret = -EFAULT;
goto free_cmd_bo_hdls;
if (args->arg_count) {
arg_bo_hdls = kcalloc(args->arg_count, sizeof(u32), GFP_KERNEL);
if (!arg_bo_hdls)
return -ENOMEM;
ret = copy_from_user(arg_bo_hdls, u64_to_user_ptr(args->args),
args->arg_count * sizeof(u32));
if (ret) {
ret = -EFAULT;
goto free_cmd_bo_hdls;
}
}
ret = amdxdna_cmd_submit(client, cmd_bo_hdl, arg_bo_hdls,