173 lines
4.4 KiB
C
173 lines
4.4 KiB
C
/*
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* Copyright (c) 2016, Mellanox Technologies. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef SOC_NPS_COMMON_H
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#define SOC_NPS_COMMON_H
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#ifdef CONFIG_SMP
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#define NPS_IPI_IRQ 5
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#endif
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#define NPS_HOST_REG_BASE 0xF6000000
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#define NPS_MSU_BLKID 0x018
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#define CTOP_INST_RSPI_GIC_0_R12 0x3C56117E
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#define CTOP_INST_MOV2B_FLIP_R3_B1_B2_INST 0x5B60
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#define CTOP_INST_MOV2B_FLIP_R3_B1_B2_LIMM 0x00010422
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#ifndef AUX_IENABLE
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#define AUX_IENABLE 0x40c
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#endif
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#define CTOP_AUX_IACK (0xFFFFF800 + 0x088)
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#ifndef __ASSEMBLY__
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/* In order to increase compilation test coverage */
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#ifdef CONFIG_ARC
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static inline void nps_ack_gic(void)
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{
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__asm__ __volatile__ (
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" .word %0\n"
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:
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: "i"(CTOP_INST_RSPI_GIC_0_R12)
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: "memory");
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}
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#else
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static inline void nps_ack_gic(void) { }
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#define write_aux_reg(r, v)
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#define read_aux_reg(r) 0
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#endif
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/* CPU global ID */
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struct global_id {
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union {
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struct {
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#ifdef CONFIG_EZNPS_MTM_EXT
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u32 __reserved:20, cluster:4, core:4, thread:4;
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#else
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u32 __reserved:24, cluster:4, core:4;
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#endif
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};
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u32 value;
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};
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};
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/*
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* Convert logical to physical CPU IDs
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*
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* The conversion swap bits 1 and 2 of cluster id (out of 4 bits)
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* Now quad of logical clusters id's are adjacent physically,
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* and not like the id's physically came with each cluster.
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* Below table is 4x4 mesh of core clusters as it layout on chip.
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* Cluster ids are in format: logical (physical)
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*
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* ----------------- ------------------
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* 3 | 5 (3) 7 (7) | | 13 (11) 15 (15)|
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*
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* 2 | 4 (2) 6 (6) | | 12 (10) 14 (14)|
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* ----------------- ------------------
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* 1 | 1 (1) 3 (5) | | 9 (9) 11 (13)|
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*
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* 0 | 0 (0) 2 (4) | | 8 (8) 10 (12)|
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* ----------------- ------------------
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* 0 1 2 3
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*/
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static inline int nps_cluster_logic_to_phys(int cluster)
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{
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#ifdef __arc__
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__asm__ __volatile__(
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" mov r3,%0\n"
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" .short %1\n"
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" .word %2\n"
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" mov %0,r3\n"
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: "+r"(cluster)
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: "i"(CTOP_INST_MOV2B_FLIP_R3_B1_B2_INST),
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"i"(CTOP_INST_MOV2B_FLIP_R3_B1_B2_LIMM)
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: "r3");
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#endif
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return cluster;
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}
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#define NPS_CPU_TO_CLUSTER_NUM(cpu) \
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({ struct global_id gid; gid.value = cpu; \
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nps_cluster_logic_to_phys(gid.cluster); })
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struct nps_host_reg_address {
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union {
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struct {
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u32 base:8, cl_x:4, cl_y:4,
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blkid:6, reg:8, __reserved:2;
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};
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u32 value;
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};
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};
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struct nps_host_reg_address_non_cl {
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union {
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struct {
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u32 base:7, blkid:11, reg:12, __reserved:2;
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};
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u32 value;
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};
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};
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static inline void *nps_host_reg_non_cl(u32 blkid, u32 reg)
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{
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struct nps_host_reg_address_non_cl reg_address;
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reg_address.value = NPS_HOST_REG_BASE;
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reg_address.blkid = blkid;
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reg_address.reg = reg;
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return (void *)reg_address.value;
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}
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static inline void *nps_host_reg(u32 cpu, u32 blkid, u32 reg)
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{
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struct nps_host_reg_address reg_address;
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u32 cl = NPS_CPU_TO_CLUSTER_NUM(cpu);
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reg_address.value = NPS_HOST_REG_BASE;
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reg_address.cl_x = (cl >> 2) & 0x3;
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reg_address.cl_y = cl & 0x3;
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reg_address.blkid = blkid;
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reg_address.reg = reg;
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return (void *)reg_address.value;
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}
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#endif /* __ASSEMBLY__ */
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#endif /* SOC_NPS_COMMON_H */
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