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nvethernetrm: move core_backup to osi_common.h

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Issue: RFE: move struct core_backup to osi_common.h
Fix:
 1. Moved core_backup to osi_common.h
 2. Added generic osi_mac_restore_registers() and osi_mac_save_registers()
    Api's in osi_common.c
Bug 2804631

Change-Id: I5bc71666e104f2e729024e096bd51ce350f2a1f0
Signed-off-by: Mahesh Patil <maheshp@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/kernel/nvethernetrm/+/2286642
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-misra <svc-mobile-misra@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Ajay Gupta <ajayg@nvidia.com>
Reviewed-by: Srinivas Ramachandran <srinivasra@nvidia.com>
Reviewed-by: Ashutosh Jha <ajha@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Mahesh Patil
2020-01-28 13:14:57 -08:00
committed by Bhadram Varka
parent 198951cc39
commit b993a0368d
6 changed files with 98 additions and 67 deletions
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42
include/osi_common.h
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@@ -263,6 +263,12 @@
#define OSI_INVALID_CHAN_NUM 0xFFU
/** @} */
/**
* @brief Max num of MAC core registers to backup. It should be max of or >=
* (EQOS_MAX_BAK_IDX=380, MGBE_MAX_BAK_IDX, coreX,...etc) backup registers.
*/
#define CORE_MAX_BAK_IDX 400U
/**
* @addtogroup EQOS-MAC EQOS MAC HW supported features
*
@@ -504,6 +510,16 @@ struct osi_hw_features {
unsigned int aux_snap_num;
};
/**
* @brief core_backup - Struct used to store backup of core HW registers.
*/
struct core_backup {
/** Array of reg MMIO addresses (base of MAC core + offset of reg) */
void *reg_addr[CORE_MAX_BAK_IDX];
/** Array of value stored in each corresponding register */
unsigned int reg_val[CORE_MAX_BAK_IDX];
};
/**
* @brief osi_lock_init - Initialize lock to unlocked state.
*
@@ -664,4 +680,30 @@ void osi_get_hw_features(void *base, struct osi_hw_features *hw_feat);
*
*/
void osi_memset(void *s, unsigned int c, unsigned long count);
/*
* @brief Function to store a backup of MAC register space during SOC suspend.
*
* Algorithm: Read registers to be backed up as per struct core_backup and
* store the register values in memory.
*
* @param[in] config: Pointer to core_backup structure.
* @param[in] max_regs: Max num of registers to backup.
*
* @retval none
*/
void mac_save_registers(struct core_backup *const config);
/**
* @brief Function to restore the backup of MAC registers during SOC resume.
*
* Algorithm: Restore the register values from the in memory backup taken using
* osi_save_registers().
*
* @param[in] config: Pointer to core_backup structure.
* @param[in] max_regs: Max num of registers to restore.
*
* @retval none
*/
void mac_restore_registers(struct core_backup *const config);
#endif /* OSI_COMMON_H */