Reviewed-by: Evan Quan
> -Original Message-
> From: amd-gfx On Behalf Of Rex
> Zhu
> Sent: 2018年9月30日 0:19
> To: amd-gfx@lists.freedesktop.org
> Cc: Zhu, Rex
> Subject: [PATCH 2/4] drm/amd/pp: Implement load_firmware interface
>
> with this interface, gfx/sdma can be initialized before smu.
>
> Signed-off-by: Rex Zhu
> ---
> drivers/gpu/drm/amd/powerplay/amd_powerplay.c | 15
> +++
> 1 file changed, 15 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
> b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
> index a267f9e..ace88e2 100644
> --- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
> +++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
> @@ -270,8 +270,23 @@ static int pp_set_clockgating_state(void *handle,
> .funcs = _ip_funcs,
> };
>
> +/* This interface only be supported On Vi,
> + * because only smu7/8 can help to load gfx/sdma fw,
> + * smu need to be enabled before load other ip's fw.
> + * so call start smu to load smu7 fw and other ip's fw */
> static int pp_dpm_load_fw(void *handle) {
> + struct pp_hwmgr *hwmgr = handle;
> +
> + if (!hwmgr || !hwmgr->smumgr_funcs || !hwmgr->smumgr_funcs-
> >start_smu)
> + return -EINVAL;
> +
> + if (hwmgr->smumgr_funcs->start_smu(hwmgr)) {
> + pr_err("fw load failed\n");
> + return -EINVAL;
> + }
> +
> return 0;
> }
>
> --
> 1.9.1
>
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