Re: [PATCH] drm/amd/display: fix dtm unloading

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Reviewed-by: Feifei Xu <Feifei.Xu@xxxxxxx>

> On Feb 10, 2020, at 23:17, Bhawanpreet Lakha <Bhawanpreet.Lakha@xxxxxxx> wrote:
> 
> there was a type in the terminate command.
> 
> We should be calling psp_dtm_unload() instead of psp_hdcp_unload()
> 
> Fixes: 143f23053333 ("drm/amdgpu: psp DTM init"
> Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@xxxxxxx>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 26 ++++++++++++++++++++++++-
> 1 file changed, 25 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
> index 939a114605c0..a16c8101e250 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
> @@ -1013,6 +1013,30 @@ static int psp_dtm_initialize(struct psp_context *psp)
>    return 0;
> }
> 
> +static int psp_dtm_unload(struct psp_context *psp)
> +{
> +    int ret;
> +    struct psp_gfx_cmd_resp *cmd;
> +
> +    /*
> +     * TODO: bypass the unloading in sriov for now
> +     */
> +    if (amdgpu_sriov_vf(psp->adev))
> +        return 0;
> +
> +    cmd = kzalloc(sizeof(struct psp_gfx_cmd_resp), GFP_KERNEL);
> +    if (!cmd)
> +        return -ENOMEM;
> +
> +    psp_prep_ta_unload_cmd_buf(cmd, psp->dtm_context.session_id);
> +
> +    ret = psp_cmd_submit_buf(psp, NULL, cmd, psp->fence_buf_mc_addr);
> +
> +    kfree(cmd);
> +
> +    return ret;
> +}
> +
> int psp_dtm_invoke(struct psp_context *psp, uint32_t ta_cmd_id)
> {
>    /*
> @@ -1037,7 +1061,7 @@ static int psp_dtm_terminate(struct psp_context *psp)
>    if (!psp->dtm_context.dtm_initialized)
>        return 0;
> 
> -    ret = psp_hdcp_unload(psp);
> +    ret = psp_dtm_unload(psp);
>    if (ret)
>        return ret;
> 
> -- 
> 2.17.1
> 
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