You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
113 lines
3.9 KiB
113 lines
3.9 KiB
/*
|
|
* Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
#ifndef CCN_H
|
|
#define CCN_H
|
|
|
|
/*
|
|
* This macro defines the maximum number of master interfaces that reside on
|
|
* Request nodes which the CCN driver can accommodate. The driver APIs to add
|
|
* and remove Request nodes from snoop/dvm domains take a bit map of master
|
|
* interfaces as inputs. The largest C data type that can be used is a 64-bit
|
|
* unsigned integer. Hence the value of 64. The platform will have to ensure
|
|
* that the master interfaces are numbered from 0-63.
|
|
*/
|
|
#define CCN_MAX_RN_MASTERS 64
|
|
|
|
/*
|
|
* The following constants define the various run modes that the platform can
|
|
* request the CCN driver to place the L3 cache in. These map to the
|
|
* programmable P-State values in a HN-F P-state register.
|
|
*/
|
|
#define CCN_L3_RUN_MODE_NOL3 0x0 /* HNF_PM_NOL3 */
|
|
#define CCN_L3_RUN_MODE_SFONLY 0x1 /* HNF_PM_SFONLY */
|
|
#define CCN_L3_RUN_MODE_HAM 0x2 /* HNF_PM_HALF */
|
|
#define CCN_L3_RUN_MODE_FAM 0x3 /* HNF_PM_FULL */
|
|
|
|
/* part 0 IDs for various CCN variants */
|
|
#define CCN_502_PART0_ID 0x30
|
|
#define CCN_504_PART0_ID 0x26
|
|
#define CCN_505_PART0_ID 0x27
|
|
#define CCN_508_PART0_ID 0x28
|
|
#define CCN_512_PART0_ID 0x29
|
|
|
|
/*
|
|
* The following macro takes the value returned from a read of a HN-F P-state
|
|
* status register and returns the retention state value.
|
|
*/
|
|
#define CCN_GET_RETENTION_STATE(pstate) ((pstate >> 4) & 0x3)
|
|
|
|
/*
|
|
* The following macro takes the value returned from a read of a HN-F P-state
|
|
* status register and returns the run state value.
|
|
*/
|
|
#define CCN_GET_RUN_STATE(pstate) (pstate & 0xf)
|
|
|
|
#ifndef __ASSEMBLER__
|
|
#include <stdint.h>
|
|
|
|
/*
|
|
* This structure describes some of the implementation defined attributes of the
|
|
* CCN IP. It is used by the platform port to specify these attributes in order
|
|
* to initialise the CCN driver. The attributes are described below.
|
|
*
|
|
* 1. The 'num_masters' field specifies the total number of master interfaces
|
|
* resident on Request nodes.
|
|
*
|
|
* 2. The 'master_to_rn_id_map' field is a ponter to an array in which each
|
|
* index corresponds to a master interface and its value corresponds to the
|
|
* Request node on which the master interface resides.
|
|
* This field is not simply defined as an array of size CCN_MAX_RN_MASTERS.
|
|
* In reality, a platform will have much fewer master * interfaces than
|
|
* CCN_MAX_RN_MASTERS. With an array of this size, it would also have to
|
|
* set the unused entries to a suitable value. Zeroing the array would not
|
|
* be enough since 0 is also a valid node id. Hence, such an array is not
|
|
* used.
|
|
*
|
|
* 3. The 'periphbase' field is the base address of the programmer's view of the
|
|
* CCN IP.
|
|
*/
|
|
typedef struct ccn_desc {
|
|
unsigned int num_masters;
|
|
const unsigned char *master_to_rn_id_map;
|
|
uintptr_t periphbase;
|
|
} ccn_desc_t;
|
|
|
|
/* Enum used to loop through all types of nodes in CCN*/
|
|
typedef enum node_types {
|
|
NODE_TYPE_RNF = 0,
|
|
NODE_TYPE_RNI,
|
|
NODE_TYPE_RND,
|
|
NODE_TYPE_HNF,
|
|
NODE_TYPE_HNI,
|
|
NODE_TYPE_SN,
|
|
NUM_NODE_TYPES
|
|
} node_types_t;
|
|
|
|
void ccn_init(const ccn_desc_t *plat_ccn_desc);
|
|
void ccn_enter_snoop_dvm_domain(unsigned long long master_iface_map);
|
|
void ccn_exit_snoop_dvm_domain(unsigned long long master_iface_map);
|
|
void ccn_enter_dvm_domain(unsigned long long master_iface_map);
|
|
void ccn_exit_dvm_domain(unsigned long long master_iface_map);
|
|
void ccn_set_l3_run_mode(unsigned int mode);
|
|
void ccn_program_sys_addrmap(unsigned int sn0_id,
|
|
unsigned int sn1_id,
|
|
unsigned int sn2_id,
|
|
unsigned int top_addr_bit0,
|
|
unsigned int top_addr_bit1,
|
|
unsigned char three_sn_en);
|
|
unsigned int ccn_get_l3_run_mode(void);
|
|
int ccn_get_part0_id(uintptr_t periphbase);
|
|
|
|
void ccn_write_node_reg(node_types_t node_type, unsigned int node_id,
|
|
unsigned int reg_offset,
|
|
unsigned long long val);
|
|
unsigned long long ccn_read_node_reg(node_types_t node_type,
|
|
unsigned int node_id,
|
|
unsigned int reg_offset);
|
|
|
|
#endif /* __ASSEMBLER__ */
|
|
#endif /* CCN_H */
|
|
|