Merge pull request #516 from vikramkanigiri/vk/ccn-fix-dvm-entry
Bug fix: Rectify logic to enter or exit from DVM domain
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commit
85320724af
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@ -268,7 +268,7 @@ static unsigned long long ccn_master_to_rn_id_map(unsigned long long master_map)
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/*******************************************************************************
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* This function executes the necessary operations to add or remove Request node
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* IDs specified in the 'rn_id_map' bitmap from the snoop/DVM domains specified
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* in the 'hn_id_map'. The 'region_id' specifies the ID of the first HN-F/HN-I
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* in the 'hn_id_map'. The 'region_id' specifies the ID of the first HN-F/MN
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* on which the operation should be performed. 'op_reg_offset' specifies the
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* type of operation (add/remove). 'stat_reg_offset' specifies the register
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* which should be polled to determine if the operation has completed or not.
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@ -309,35 +309,6 @@ static void ccn_snoop_dvm_do_op(unsigned long long rn_id_map,
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#endif
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}
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/*******************************************************************************
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* This function reads the bitmap of Home nodes on the basis of the
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* 'mn_hn_id_reg_offset' parameter from the Miscellaneous node's (MN)
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* programmer's view. The MN has a register which carries the bitmap of present
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* Home nodes of each type i.e. HN-Fs, HN-Is & HN-Ds. It calls
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* 'ccn_snoop_dvm_do_op()' with this information to perform the actual
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* operation.
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******************************************************************************/
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static void ccn_snoop_dvm_domain_common(unsigned long long rn_id_map,
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unsigned int hn_op_reg_offset,
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unsigned int hn_stat_reg_offset,
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unsigned int mn_hn_id_reg_offset,
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unsigned int hn_region_id)
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{
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unsigned long long mn_hn_id_map;
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assert(ccn_plat_desc);
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assert(ccn_plat_desc->periphbase);
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mn_hn_id_map = ccn_reg_read(ccn_plat_desc->periphbase,
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MN_REGION_ID,
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mn_hn_id_reg_offset);
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ccn_snoop_dvm_do_op(rn_id_map,
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mn_hn_id_map,
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hn_region_id,
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hn_op_reg_offset,
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hn_stat_reg_offset);
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}
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/*******************************************************************************
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* The following functions provide the boot and runtime API to the platform for
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* adding and removing master interfaces from the snoop/DVM domains. A bitmap of
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@ -357,17 +328,18 @@ void ccn_enter_snoop_dvm_domain(unsigned long long master_iface_map)
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unsigned long long rn_id_map;
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rn_id_map = ccn_master_to_rn_id_map(master_iface_map);
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ccn_snoop_dvm_domain_common(rn_id_map,
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HNF_SDC_SET_OFFSET,
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HNF_SDC_STAT_OFFSET,
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MN_HNF_NODEID_OFFSET,
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HNF_REGION_ID_START);
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ccn_snoop_dvm_do_op(rn_id_map,
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CCN_GET_HN_NODEID_MAP(ccn_plat_desc->periphbase,
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MN_HNF_NODEID_OFFSET),
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HNF_REGION_ID_START,
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HNF_SDC_SET_OFFSET,
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HNF_SDC_STAT_OFFSET);
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ccn_snoop_dvm_domain_common(rn_id_map,
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MN_DDC_SET_OFF,
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MN_DDC_STAT_OFFSET,
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MN_HNI_NODEID_OFFSET,
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MN_REGION_ID);
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ccn_snoop_dvm_do_op(rn_id_map,
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CCN_GET_MN_NODEID_MAP(ccn_plat_desc->periphbase),
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MN_REGION_ID,
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MN_DDC_SET_OFFSET,
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MN_DDC_STAT_OFFSET);
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}
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void ccn_exit_snoop_dvm_domain(unsigned long long master_iface_map)
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@ -375,17 +347,18 @@ void ccn_exit_snoop_dvm_domain(unsigned long long master_iface_map)
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unsigned long long rn_id_map;
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rn_id_map = ccn_master_to_rn_id_map(master_iface_map);
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ccn_snoop_dvm_domain_common(rn_id_map,
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HNF_SDC_CLR_OFFSET,
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HNF_SDC_STAT_OFFSET,
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MN_HNF_NODEID_OFFSET,
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HNF_REGION_ID_START);
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ccn_snoop_dvm_do_op(rn_id_map,
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CCN_GET_HN_NODEID_MAP(ccn_plat_desc->periphbase,
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MN_HNF_NODEID_OFFSET),
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HNF_REGION_ID_START,
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HNF_SDC_CLR_OFFSET,
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HNF_SDC_STAT_OFFSET);
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ccn_snoop_dvm_domain_common(rn_id_map,
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MN_DDC_CLR_OFFSET,
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MN_DDC_STAT_OFFSET,
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MN_HNI_NODEID_OFFSET,
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MN_REGION_ID);
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ccn_snoop_dvm_do_op(rn_id_map,
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CCN_GET_MN_NODEID_MAP(ccn_plat_desc->periphbase),
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MN_REGION_ID,
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MN_DDC_CLR_OFFSET,
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MN_DDC_STAT_OFFSET);
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}
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void ccn_enter_dvm_domain(unsigned long long master_iface_map)
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@ -393,11 +366,11 @@ void ccn_enter_dvm_domain(unsigned long long master_iface_map)
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unsigned long long rn_id_map;
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rn_id_map = ccn_master_to_rn_id_map(master_iface_map);
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ccn_snoop_dvm_domain_common(rn_id_map,
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MN_DDC_SET_OFF,
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MN_DDC_STAT_OFFSET,
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MN_HNI_NODEID_OFFSET,
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MN_REGION_ID);
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ccn_snoop_dvm_do_op(rn_id_map,
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CCN_GET_MN_NODEID_MAP(ccn_plat_desc->periphbase),
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MN_REGION_ID,
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MN_DDC_SET_OFFSET,
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MN_DDC_STAT_OFFSET);
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}
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void ccn_exit_dvm_domain(unsigned long long master_iface_map)
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@ -405,11 +378,11 @@ void ccn_exit_dvm_domain(unsigned long long master_iface_map)
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unsigned long long rn_id_map;
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rn_id_map = ccn_master_to_rn_id_map(master_iface_map);
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ccn_snoop_dvm_domain_common(rn_id_map,
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MN_DDC_CLR_OFFSET,
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MN_DDC_STAT_OFFSET,
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MN_HNI_NODEID_OFFSET,
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MN_REGION_ID);
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ccn_snoop_dvm_do_op(rn_id_map,
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CCN_GET_MN_NODEID_MAP(ccn_plat_desc->periphbase),
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MN_REGION_ID,
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MN_DDC_CLR_OFFSET,
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MN_DDC_STAT_OFFSET);
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}
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/*******************************************************************************
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@ -147,7 +147,7 @@ typedef enum rn_types {
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#define MN_HNI_NODEID_OFFSET 0x01C0
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#define MN_SN_NODEID_OFFSET 0x01D0
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#define MN_DDC_STAT_OFFSET DOMAIN_CTRL_STAT_OFFSET
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#define MN_DDC_SET_OFF DOMAIN_CTRL_SET_OFFSET
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#define MN_DDC_SET_OFFSET DOMAIN_CTRL_SET_OFFSET
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#define MN_DDC_CLR_OFFSET DOMAIN_CTRL_CLR_OFFSET
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#define MN_ID_OFFSET REGION_ID_OFFSET
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@ -236,4 +236,21 @@ static inline unsigned int count_set_bits(uint64_t bitmap)
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*/
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#define FOR_EACH_PRESENT_MASTER_INTERFACE(iface_id, bit_map) \
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FOR_EACH_BIT(iface_id, bit_map)
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/*
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* Macro that returns the node id bit map for the Miscellaneous Node
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*/
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#define CCN_GET_MN_NODEID_MAP(periphbase) \
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(1 << get_node_id(ccn_reg_read(periphbase, MN_REGION_ID, \
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REGION_ID_OFFSET)))
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/*
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* This macro returns the bitmap of Home nodes on the basis of the
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* 'mn_hn_id_reg_offset' parameter from the Miscellaneous node's (MN)
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* programmer's view. The MN has a register which carries the bitmap of present
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* Home nodes of each type i.e. HN-Fs, HN-Is & HN-Ds.
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*/
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#define CCN_GET_HN_NODEID_MAP(periphbase, mn_hn_id_reg_offset) \
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ccn_reg_read(periphbase, MN_REGION_ID, mn_hn_id_reg_offset)
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#endif /* __CCN_PRIVATE_H__ */
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