[v8,01/10] firmware: qcom_scm: Fix to allow COMPILE_TEST-ing

Unfortunatly previous attempt to allow consumer drivers to
use COMPILE_TEST option in Kconfig is not enough, because in the
past the consumer drivers used 'depends on' Kconfig option but
now they are using 'select' Kconfig option which means on non ARM
arch'es compilation is triggered. Thus we need to move the ifdefery
one level below by touching the private qcom_scm.h header.

To: Andy Gross <andy.gross@linaro.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>

---
 drivers/firmware/Kconfig    |  2 +-
 drivers/firmware/qcom_scm.h | 72 ++++++++++++++++++++++++++++++++++++++-------
 include/linux/qcom_scm.h    | 32 --------------------
 3 files changed, 62 insertions(+), 44 deletions(-)

-- 
2.7.4

On 05/05/2017 03:23 PM, Stanimir Varbanov wrote:
> Hi Hans,

> 

> On 05/05/2017 02:34 PM, Hans Verkuil wrote:

>> On 04/28/17 11:13, Stanimir Varbanov wrote:

>>> Unfortunatly previous attempt to allow consumer drivers to

>>> use COMPILE_TEST option in Kconfig is not enough, because in the

>>> past the consumer drivers used 'depends on' Kconfig option but

>>> now they are using 'select' Kconfig option which means on non ARM

>>> arch'es compilation is triggered. Thus we need to move the ifdefery

>>> one level below by touching the private qcom_scm.h header.

>>>

>>> To: Andy Gross <andy.gross@linaro.org>

>>> Cc: Stephen Boyd <sboyd@codeaurora.org>

>>> Cc: Bjorn Andersson <bjorn.andersson@linaro.org>

>>> Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>

>>> ---

>>>  drivers/firmware/Kconfig    |  2 +-

>>>  drivers/firmware/qcom_scm.h | 72 ++++++++++++++++++++++++++++++++++++++-------

>>>  include/linux/qcom_scm.h    | 32 --------------------

>>>  3 files changed, 62 insertions(+), 44 deletions(-)

>>>

>>> diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig

>>> index 6e4ed5a9c6fd..480578c3691a 100644

>>> --- a/drivers/firmware/Kconfig

>>> +++ b/drivers/firmware/Kconfig

>>> @@ -204,7 +204,7 @@ config FW_CFG_SYSFS_CMDLINE

>>>  

>>>  config QCOM_SCM

>>>  	bool

>>> -	depends on ARM || ARM64

>>> +	depends on ARM || ARM64 || COMPILE_TEST

>>>  	select RESET_CONTROLLER

>>>  

>>>  config QCOM_SCM_32

>>> diff --git a/drivers/firmware/qcom_scm.h b/drivers/firmware/qcom_scm.h

>>> index 9bea691f30fb..d2b5723afb3f 100644

>>> --- a/drivers/firmware/qcom_scm.h

>>> +++ b/drivers/firmware/qcom_scm.h

>>> @@ -12,6 +12,7 @@

>>>  #ifndef __QCOM_SCM_INT_H

>>>  #define __QCOM_SCM_INT_H

>>>  

>>> +#if IS_ENABLED(CONFIG_ARM) || IS_ENABLED(CONFIG_ARM64)

>>

>> This is weird. Shouldn't this be:

>>

>> #if IS_ENABLED(CONFIG_QCOM_SCM)

> 

> I think no, because if you take a look in the above hunk which adding

> COMPILE_TEST in the QCOM_SCM config the CONFIG_QCOM_SCM will be enabled

> if compile testing is selected for example on x86 build target.


My apologies, just ignore my comment. I missed that QCOM_SCM is automatically
configured and not manually.

This patch is fine.

Regards,

	Hans

> 

>>

>> If the code in the actual source only works for ARM, then that should be

>> handled in that source code, and not in this header IMHO.

> 

> Do you mean adding #ifdef in the source file? IMO this will become a

> bigger mess.

> 

>>

>> Regards,

>>

>> 	Hans

>>

>>>  #define QCOM_SCM_SVC_BOOT		0x1

>>>  #define QCOM_SCM_BOOT_ADDR		0x1

>>>  #define QCOM_SCM_BOOT_ADDR_MC		0x11

>>> @@ -58,6 +59,66 @@ extern int  __qcom_scm_pas_auth_and_reset(struct device *dev, u32 peripheral);

>>>  extern int  __qcom_scm_pas_shutdown(struct device *dev, u32 peripheral);

>>>  extern int  __qcom_scm_pas_mss_reset(struct device *dev, bool reset);

>>>  

>>> +#define QCOM_SCM_SVC_MP			0xc

>>> +#define QCOM_SCM_RESTORE_SEC_CFG	2

>>> +extern int __qcom_scm_restore_sec_cfg(struct device *dev, u32 device_id,

>>> +				      u32 spare);

>>> +#define QCOM_SCM_IOMMU_SECURE_PTBL_SIZE	3

>>> +#define QCOM_SCM_IOMMU_SECURE_PTBL_INIT	4

>>> +extern int __qcom_scm_iommu_secure_ptbl_size(struct device *dev, u32 spare,

>>> +					     size_t *size);

>>> +extern int __qcom_scm_iommu_secure_ptbl_init(struct device *dev, u64 addr,

>>> +					     u32 size, u32 spare);

>>> +#else

>>> +static inline int __qcom_scm_set_remote_state(struct device *dev, u32 state,

>>> +					      u32 id)

>>> +{ return -ENODEV; }

>>> +static inline int __qcom_scm_set_warm_boot_addr(struct device *dev, void *entry,

>>> +						const cpumask_t *cpus)

>>> +{ return -ENODEV; }

>>> +static inline int __qcom_scm_set_cold_boot_addr(void *entry,

>>> +						const cpumask_t *cpus)

>>> +{ return -ENODEV; }

>>> +static inline void __qcom_scm_cpu_power_down(u32 flags) {}

>>> +static inline int __qcom_scm_is_call_available(struct device *dev, u32 svc_id,

>>> +					       u32 cmd_id)

>>> +{ return -ENODEV; }

>>> +#define QCOM_SCM_SVC_HDCP		0x11

>>> +#define QCOM_SCM_CMD_HDCP		0x01

>>> +static inline int __qcom_scm_hdcp_req(struct device *dev,

>>> +				      struct qcom_scm_hdcp_req *req,

>>> +				      u32 req_cnt, u32 *resp)

>>> +{ return -ENODEV; }

>>> +static inline void __qcom_scm_init(void) {}

>>> +#define QCOM_SCM_SVC_PIL		0x2

>>> +#define QCOM_SCM_PAS_IS_SUPPORTED_CMD	0x7

>>> +static inline bool __qcom_scm_pas_supported(struct device *dev, u32 peripheral)

>>> +{ return false; }

>>> +static inline int  __qcom_scm_pas_init_image(struct device *dev, u32 peripheral,

>>> +					     dma_addr_t metadata_phys)

>>> +{ return -ENODEV; }

>>> +static inline int  __qcom_scm_pas_mem_setup(struct device *dev, u32 peripheral,

>>> +					    phys_addr_t addr, phys_addr_t size)

>>> +{ return -ENODEV; }

>>> +static inline int  __qcom_scm_pas_auth_and_reset(struct device *dev,

>>> +						 u32 peripheral)

>>> +{ return -ENODEV; }

>>> +static inline int  __qcom_scm_pas_shutdown(struct device *dev, u32 peripheral)

>>> +{ return -ENODEV; }

>>> +static inline int  __qcom_scm_pas_mss_reset(struct device *dev, bool reset)

>>> +{ return -ENODEV; }

>>> +static inline int __qcom_scm_restore_sec_cfg(struct device *dev, u32 device_id,

>>> +					     u32 spare)

>>> +{ return -ENODEV; }

>>> +extern int __qcom_scm_iommu_secure_ptbl_size(struct device *dev, u32 spare,

>>> +					     size_t *size)

>>> +{ return -ENODEV; }

>>> +static inline int __qcom_scm_iommu_secure_ptbl_init(struct device *dev,

>>> +						    u64 addr, u32 size,

>>> +						    u32 spare)

>>> +{ return -ENODEV; }

>>> +#endif

>>> +

>>>  /* common error codes */

>>>  #define QCOM_SCM_V2_EBUSY	-12

>>>  #define QCOM_SCM_ENOMEM		-5

>>> @@ -85,15 +146,4 @@ static inline int qcom_scm_remap_error(int err)

>>>  	return -EINVAL;

>>>  }

>>>  

>>> -#define QCOM_SCM_SVC_MP			0xc

>>> -#define QCOM_SCM_RESTORE_SEC_CFG	2

>>> -extern int __qcom_scm_restore_sec_cfg(struct device *dev, u32 device_id,

>>> -				      u32 spare);

>>> -#define QCOM_SCM_IOMMU_SECURE_PTBL_SIZE	3

>>> -#define QCOM_SCM_IOMMU_SECURE_PTBL_INIT	4

>>> -extern int __qcom_scm_iommu_secure_ptbl_size(struct device *dev, u32 spare,

>>> -					     size_t *size);

>>> -extern int __qcom_scm_iommu_secure_ptbl_init(struct device *dev, u64 addr,

>>> -					     u32 size, u32 spare);

>>> -

>>>  #endif

>>> diff --git a/include/linux/qcom_scm.h b/include/linux/qcom_scm.h

>>> index e5380471c2cd..b628f735f355 100644

>>> --- a/include/linux/qcom_scm.h

>>> +++ b/include/linux/qcom_scm.h

>>> @@ -23,7 +23,6 @@ struct qcom_scm_hdcp_req {

>>>  	u32 val;

>>>  };

>>>  

>>> -#if IS_ENABLED(CONFIG_QCOM_SCM)

>>>  extern int qcom_scm_set_cold_boot_addr(void *entry, const cpumask_t *cpus);

>>>  extern int qcom_scm_set_warm_boot_addr(void *entry, const cpumask_t *cpus);

>>>  extern bool qcom_scm_is_available(void);

>>> @@ -43,35 +42,4 @@ extern int qcom_scm_set_remote_state(u32 state, u32 id);

>>>  extern int qcom_scm_restore_sec_cfg(u32 device_id, u32 spare);

>>>  extern int qcom_scm_iommu_secure_ptbl_size(u32 spare, size_t *size);

>>>  extern int qcom_scm_iommu_secure_ptbl_init(u64 addr, u32 size, u32 spare);

>>> -#else

>>> -static inline

>>> -int qcom_scm_set_cold_boot_addr(void *entry, const cpumask_t *cpus)

>>> -{

>>> -	return -ENODEV;

>>> -}

>>> -static inline

>>> -int qcom_scm_set_warm_boot_addr(void *entry, const cpumask_t *cpus)

>>> -{

>>> -	return -ENODEV;

>>> -}

>>> -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_pas_supported(u32 peripheral) { return false; }

>>> -static inline int qcom_scm_pas_init_image(u32 peripheral, const void *metadata,

>>> -					  size_t size) { return -ENODEV; }

>>> -static inline int qcom_scm_pas_mem_setup(u32 peripheral, phys_addr_t addr,

>>> -					 phys_addr_t size) { return -ENODEV; }

>>> -static inline int

>>> -qcom_scm_pas_auth_and_reset(u32 peripheral) { return -ENODEV; }

>>> -static inline int qcom_scm_pas_shutdown(u32 peripheral) { return -ENODEV; }

>>> -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 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; }

>>> -#endif

>>>  #endif

>>>

>>

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