linux-kernel - Re: [PATCH] firmware: scm: Add stubs for OCMEM and restore_sec_cfg

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Date:   Fri, 3 Jan 2020 20:57:47 -0500
From:   Brian Masney <masneyb@...tation.org>
To:     Krzysztof Kozlowski <krzk@...nel.org>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Fabio Estevam <festevam@...il.com>,
        Vivek Gautam <vivek.gautam@...eaurora.org>
Subject: Re: [PATCH] firmware: scm: Add stubs for OCMEM and
 restore_sec_cfg_available

On Fri, Jan 03, 2020 at 11:08:25PM +0100, Krzysztof Kozlowski wrote:
> Add few more stubs (for OCMEM-related functions and
> qcom_scm_restore_sec_cfg_available()) in case of !CONFIG_QCOM_SCM.
> These are actually not necessary for builds but provide them for
> completeness.
> 
> Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>

Reviewed-by: Brian Masney <masneyb@...tation.org>


> ---
>  include/linux/qcom_scm.h | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/include/linux/qcom_scm.h b/include/linux/qcom_scm.h
> index d05ddac9a57e..2c1d20312ce0 100644
> --- a/include/linux/qcom_scm.h
> +++ b/include/linux/qcom_scm.h
> @@ -105,6 +105,11 @@ static inline bool qcom_scm_is_available(void) { return false; }
>  static inline bool qcom_scm_hdcp_available(void) { return false; }
>  static inline int qcom_scm_hdcp_req(struct qcom_scm_hdcp_req *req, u32 req_cnt,
>  				    u32 *resp) { return -ENODEV; }
> +static inline bool qcom_scm_ocmem_lock_available(void) { return false; }
> +static inline int qcom_scm_ocmem_lock(enum qcom_scm_ocmem_client id, u32 offset,
> +				      u32 size, u32 mode) { return -ENODEV; }
> +static inline int qcom_scm_ocmem_unlock(enum qcom_scm_ocmem_client id, u32 offset,
> +					u32 size) { return -ENODEV; }
>  static inline bool qcom_scm_pas_supported(u32 peripheral) { return false; }
>  static inline int qcom_scm_pas_init_image(u32 peripheral, const void *metadata,
>  					  size_t size) { return -ENODEV; }
> @@ -121,6 +126,7 @@ static inline void qcom_scm_cpu_power_down(u32 flags) {}
>  static inline u32 qcom_scm_get_version(void) { return 0; }
>  static inline u32
>  qcom_scm_set_remote_state(u32 state,u32 id) { return -ENODEV; }
> +static inline bool qcom_scm_restore_sec_cfg_available(void) { return false; }
>  static inline int qcom_scm_restore_sec_cfg(u32 device_id, u32 spare) { return -ENODEV; }
>  static inline int qcom_scm_iommu_secure_ptbl_size(u32 spare, size_t *size) { return -ENODEV; }
>  static inline int qcom_scm_iommu_secure_ptbl_init(u64 addr, u32 size, u32 spare) { return -ENODEV; }
> -- 
> 2.17.1