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It includes macros for accessing memory mapped registers. These are functional registers that core can use to configure SoC. Signed-off-by: Noam Camus --- include/soc/nps/common.h | 150 ++++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 150 insertions(+), 0 deletions(-) create mode 100644 include/soc/nps/common.h diff --git a/include/soc/nps/common.h b/include/soc/nps/common.h new file mode 100644 index 0000000..35ebb00 --- /dev/null +++ b/include/soc/nps/common.h @@ -0,0 +1,150 @@ +/* + * Copyright(c) 2015 EZchip Technologies. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + */ + +#ifndef SOC_NPS_COMMON_H +#define SOC_NPS_COMMON_H + +#ifdef CONFIG_SMP +#define IPI_IRQ 5 +#endif + +#define NPS_HOST_REG_BASE 0xF6000000 + +#define NPS_MSU_BLKID 0x018 + +#define CTOP_INST_RSPI_GIC_0_R12 0x3C56117E +#define CTOP_INST_MOV2B_FLIP_R3_B1_B2_INST 0x5B60 +#define CTOP_INST_MOV2B_FLIP_R3_B1_B2_LIMM 0x00010422 + +#ifndef __ASSEMBLY__ + +/* In order to increase compilation test coverage */ +#ifdef CONFIG_ARC +static inline void nps_ack_gic(void) +{ + __asm__ __volatile__ ( + " .word %0\n" + : + : "i"(CTOP_INST_RSPI_GIC_0_R12) + : "memory"); +} +#else +static inline void nps_ack_gic(void) { } +#define write_aux_reg(r, v) +#define read_aux_reg(r) 0 +#endif + +/* CPU global ID */ +struct global_id { + union { + struct { +#ifdef CONFIG_EZNPS_MTM_EXT + u32 __reserved:20, cluster:4, core:4, thread:4; +#else + u32 __reserved:24, cluster:4, core:4; +#endif + }; + u32 value; + }; +}; + +/* + * Convert logical to physical CPU IDs + * + * The conversion swap bits 1 and 2 of cluster id (out of 4 bits) + * Now quad of logical clusters id's are adjacent physically, + * and not like the id's physically came with each cluster. + * Below table is 4x4 mesh of core clusters as it layout on chip. + * Cluster ids are in format: logical (physical) + * + * ----------------- ------------------ + * 3 | 5 (3) 7 (7) | | 13 (11) 15 (15)| + * + * 2 | 4 (2) 6 (6) | | 12 (10) 14 (14)| + * ----------------- ------------------ + * 1 | 1 (1) 3 (5) | | 9 (9) 11 (13)| + * + * 0 | 0 (0) 2 (4) | | 8 (8) 10 (12)| + * ----------------- ------------------ + * 0 1 2 3 + */ +static inline int nps_cluster_logic_to_phys(int cluster) +{ +#ifdef __arc__ + __asm__ __volatile__( + " mov r3,%0\n" + " .short %1\n" + " .word %2\n" + " mov %0,r3\n" + : "+r"(cluster) + : "i"(CTOP_INST_MOV2B_FLIP_R3_B1_B2_INST), + "i"(CTOP_INST_MOV2B_FLIP_R3_B1_B2_LIMM) + : "r3"); +#endif + + return cluster; +} + +#define NPS_CPU_TO_CLUSTER_NUM(cpu) \ + ({ struct global_id gid; gid.value = cpu; \ + nps_cluster_logic_to_phys(gid.cluster); }) + +struct nps_host_reg_address { + union { + struct { + u32 base:8, cl_x:4, cl_y:4, + blkid:6, reg:8, __reserved:2; + }; + u32 value; + }; +}; + +struct nps_host_reg_address_non_cl { + union { + struct { + u32 base:7, blkid:11, reg:12, __reserved:2; + }; + u32 value; + }; +}; + +static inline void *nps_host_reg_non_cl(u32 blkid, u32 reg) +{ + struct nps_host_reg_address_non_cl reg_address; + + reg_address.value = NPS_HOST_REG_BASE; + reg_address.blkid = blkid; + reg_address.reg = reg; + + return (void *)reg_address.value; +} + +static inline void *nps_host_reg(u32 cpu, u32 blkid, u32 reg) +{ + struct nps_host_reg_address reg_address; + u32 cl = NPS_CPU_TO_CLUSTER_NUM(cpu); + + reg_address.value = NPS_HOST_REG_BASE; + reg_address.cl_x = (cl >> 2) & 0x3; + reg_address.cl_y = cl & 0x3; + reg_address.blkid = blkid; + reg_address.reg = reg; + + return (void *)reg_address.value; +} +#endif /* __ASSEMBLY__ */ + +#endif /* SOC_NPS_COMMON_H */