cregit-Linux how code gets into the kernel

Release 4.14 arch/blackfin/mach-common/scb-init.c

/*
 * arch/blackfin/mach-common/scb-init.c - reprogram system cross bar priority
 *
 * Copyright 2012 Analog Devices Inc.
 *
 * Licensed under the GPL-2 or later.
 */

#include <linux/errno.h>
#include <linux/kernel.h>
#include <asm/scb.h>

__attribute__((l1_text))

inline void scb_mi_write(unsigned long scb_mi_arbw, unsigned int slots, unsigned char *scb_mi_prio) { unsigned int i; for (i = 0; i < slots; ++i) bfin_write32(scb_mi_arbw, (i << SCB_SLOT_OFFSET) | scb_mi_prio[i]); }

Contributors

PersonTokensPropCommitsCommitProp
Steven Miao52100.00%1100.00%
Total52100.00%1100.00%

__attribute__((l1_text))
inline void scb_mi_read(unsigned long scb_mi_arbw, unsigned int slots, unsigned char *scb_mi_prio) { unsigned int i; for (i = 0; i < slots; ++i) { bfin_write32(scb_mi_arbw, (0xFF << SCB_SLOT_OFFSET) | i); scb_mi_prio[i] = bfin_read32(scb_mi_arbw); } }

Contributors

PersonTokensPropCommitsCommitProp
Steven Miao61100.00%1100.00%
Total61100.00%1100.00%

__attribute__((l1_text))
void init_scb(void) { unsigned int i, j; unsigned char scb_tmp_prio[32]; pr_info("Init System Crossbar\n"); for (i = 0; scb_data[i].scb_mi_arbr > 0; ++i) { scb_mi_write(scb_data[i].scb_mi_arbw, scb_data[i].scb_mi_slots, scb_data[i].scb_mi_prio); pr_debug("scb priority at 0x%lx:\n", scb_data[i].scb_mi_arbr); scb_mi_read(scb_data[i].scb_mi_arbw, scb_data[i].scb_mi_slots, scb_tmp_prio); for (j = 0; j < scb_data[i].scb_mi_slots; ++j) pr_debug("slot %d = %d\n", j, scb_tmp_prio[j]); } }

Contributors

PersonTokensPropCommitsCommitProp
Steven Miao130100.00%1100.00%
Total130100.00%1100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Steven Miao265100.00%1100.00%
Total265100.00%1100.00%
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