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26dd3e4ff9
Historically a lot of these existed because we did not have a distinction between what was modular code and what was providing support to modules via EXPORT_SYMBOL and friends. That changed when we forked out support for the latter into the export.h file. This means we should be able to reduce the usage of module.h in code that is obj-y Makefile or bool Kconfig. In the case of some code where it is modular, we can extend that to also include files that are building basic support functionality but not related to loading or registering the final module; such files also have no need whatsoever for module.h The advantage in removing such instances is that module.h itself sources about 15 other headers; adding significantly to what we feed cpp, and it can obscure what headers we are effectively using. Since module.h might have been the implicit source for init.h (for __init) and for export.h (for EXPORT_SYMBOL) we consider each instance for the presence of either and replace/add as needed. Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code. Build coverage of all the mips defconfigs revealed the module.h header was masking a couple of implicit include instances, so we add the appropriate headers there. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: David Daney <david.daney@cavium.com> Cc: John Crispin <john@phrozen.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: "Steven J. Hill" <steven.hill@cavium.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/15131/ [james.hogan@imgtec.com: Preserve sort order where it already exists] Signed-off-by: James Hogan <james.hogan@imgtec.com>
208 lines
7.1 KiB
C
208 lines
7.1 KiB
C
/*
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* Based on Ocelot Linux port, which is
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* Copyright 2001 MontaVista Software Inc.
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* Author: jsun@mvista.com or jsun@junsun.net
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*
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* Copyright 2003 ICT CAS
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* Author: Michael Guo <guoyi@ict.ac.cn>
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*
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* Copyright (C) 2007 Lemote Inc. & Institute of Computing Technology
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* Author: Fuxin Zhang, zhangfx@lemote.com
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*
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* Copyright (C) 2009 Lemote Inc.
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* Author: Wu Zhangjin, wuzhangjin@gmail.com
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#include <linux/export.h>
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#include <asm/bootinfo.h>
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#include <loongson.h>
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#include <boot_param.h>
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#include <workarounds.h>
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u32 cpu_clock_freq;
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EXPORT_SYMBOL(cpu_clock_freq);
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struct efi_memory_map_loongson *loongson_memmap;
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struct loongson_system_configuration loongson_sysconf;
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u64 loongson_chipcfg[MAX_PACKAGES] = {0xffffffffbfc00180};
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u64 loongson_chiptemp[MAX_PACKAGES];
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u64 loongson_freqctrl[MAX_PACKAGES];
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unsigned long long smp_group[4];
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#define parse_even_earlier(res, option, p) \
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do { \
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unsigned int tmp __maybe_unused; \
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\
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if (strncmp(option, (char *)p, strlen(option)) == 0) \
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tmp = kstrtou32((char *)p + strlen(option"="), 10, &res); \
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} while (0)
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void __init prom_init_env(void)
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{
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/* pmon passes arguments in 32bit pointers */
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unsigned int processor_id;
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#ifndef CONFIG_LEFI_FIRMWARE_INTERFACE
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int *_prom_envp;
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long l;
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/* firmware arguments are initialized in head.S */
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_prom_envp = (int *)fw_arg2;
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l = (long)*_prom_envp;
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while (l != 0) {
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parse_even_earlier(cpu_clock_freq, "cpuclock", l);
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parse_even_earlier(memsize, "memsize", l);
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parse_even_earlier(highmemsize, "highmemsize", l);
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_prom_envp++;
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l = (long)*_prom_envp;
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}
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if (memsize == 0)
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memsize = 256;
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loongson_sysconf.nr_uarts = 1;
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pr_info("memsize=%u, highmemsize=%u\n", memsize, highmemsize);
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#else
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struct boot_params *boot_p;
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struct loongson_params *loongson_p;
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struct system_loongson *esys;
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struct efi_cpuinfo_loongson *ecpu;
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struct irq_source_routing_table *eirq_source;
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/* firmware arguments are initialized in head.S */
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boot_p = (struct boot_params *)fw_arg2;
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loongson_p = &(boot_p->efi.smbios.lp);
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esys = (struct system_loongson *)
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((u64)loongson_p + loongson_p->system_offset);
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ecpu = (struct efi_cpuinfo_loongson *)
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((u64)loongson_p + loongson_p->cpu_offset);
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eirq_source = (struct irq_source_routing_table *)
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((u64)loongson_p + loongson_p->irq_offset);
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loongson_memmap = (struct efi_memory_map_loongson *)
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((u64)loongson_p + loongson_p->memory_offset);
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cpu_clock_freq = ecpu->cpu_clock_freq;
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loongson_sysconf.cputype = ecpu->cputype;
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if (ecpu->cputype == Loongson_3A) {
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loongson_sysconf.cores_per_node = 4;
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loongson_sysconf.cores_per_package = 4;
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smp_group[0] = 0x900000003ff01000;
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smp_group[1] = 0x900010003ff01000;
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smp_group[2] = 0x900020003ff01000;
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smp_group[3] = 0x900030003ff01000;
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loongson_chipcfg[0] = 0x900000001fe00180;
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loongson_chipcfg[1] = 0x900010001fe00180;
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loongson_chipcfg[2] = 0x900020001fe00180;
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loongson_chipcfg[3] = 0x900030001fe00180;
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loongson_chiptemp[0] = 0x900000001fe0019c;
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loongson_chiptemp[1] = 0x900010001fe0019c;
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loongson_chiptemp[2] = 0x900020001fe0019c;
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loongson_chiptemp[3] = 0x900030001fe0019c;
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loongson_freqctrl[0] = 0x900000001fe001d0;
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loongson_freqctrl[1] = 0x900010001fe001d0;
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loongson_freqctrl[2] = 0x900020001fe001d0;
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loongson_freqctrl[3] = 0x900030001fe001d0;
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loongson_sysconf.ht_control_base = 0x90000EFDFB000000;
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loongson_sysconf.workarounds = WORKAROUND_CPUFREQ;
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} else if (ecpu->cputype == Loongson_3B) {
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loongson_sysconf.cores_per_node = 4; /* One chip has 2 nodes */
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loongson_sysconf.cores_per_package = 8;
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smp_group[0] = 0x900000003ff01000;
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smp_group[1] = 0x900010003ff05000;
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smp_group[2] = 0x900020003ff09000;
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smp_group[3] = 0x900030003ff0d000;
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loongson_chipcfg[0] = 0x900000001fe00180;
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loongson_chipcfg[1] = 0x900020001fe00180;
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loongson_chipcfg[2] = 0x900040001fe00180;
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loongson_chipcfg[3] = 0x900060001fe00180;
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loongson_chiptemp[0] = 0x900000001fe0019c;
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loongson_chiptemp[1] = 0x900020001fe0019c;
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loongson_chiptemp[2] = 0x900040001fe0019c;
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loongson_chiptemp[3] = 0x900060001fe0019c;
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loongson_freqctrl[0] = 0x900000001fe001d0;
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loongson_freqctrl[1] = 0x900020001fe001d0;
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loongson_freqctrl[2] = 0x900040001fe001d0;
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loongson_freqctrl[3] = 0x900060001fe001d0;
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loongson_sysconf.ht_control_base = 0x90001EFDFB000000;
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loongson_sysconf.workarounds = WORKAROUND_CPUHOTPLUG;
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} else {
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loongson_sysconf.cores_per_node = 1;
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loongson_sysconf.cores_per_package = 1;
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loongson_chipcfg[0] = 0x900000001fe00180;
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}
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loongson_sysconf.nr_cpus = ecpu->nr_cpus;
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loongson_sysconf.boot_cpu_id = ecpu->cpu_startup_core_id;
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loongson_sysconf.reserved_cpus_mask = ecpu->reserved_cores_mask;
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if (ecpu->nr_cpus > NR_CPUS || ecpu->nr_cpus == 0)
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loongson_sysconf.nr_cpus = NR_CPUS;
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loongson_sysconf.nr_nodes = (loongson_sysconf.nr_cpus +
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loongson_sysconf.cores_per_node - 1) /
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loongson_sysconf.cores_per_node;
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loongson_sysconf.pci_mem_start_addr = eirq_source->pci_mem_start_addr;
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loongson_sysconf.pci_mem_end_addr = eirq_source->pci_mem_end_addr;
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loongson_sysconf.pci_io_base = eirq_source->pci_io_start_addr;
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loongson_sysconf.dma_mask_bits = eirq_source->dma_mask_bits;
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if (loongson_sysconf.dma_mask_bits < 32 ||
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loongson_sysconf.dma_mask_bits > 64)
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loongson_sysconf.dma_mask_bits = 32;
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loongson_sysconf.restart_addr = boot_p->reset_system.ResetWarm;
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loongson_sysconf.poweroff_addr = boot_p->reset_system.Shutdown;
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loongson_sysconf.suspend_addr = boot_p->reset_system.DoSuspend;
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loongson_sysconf.vgabios_addr = boot_p->efi.smbios.vga_bios;
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pr_debug("Shutdown Addr: %llx, Restart Addr: %llx, VBIOS Addr: %llx\n",
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loongson_sysconf.poweroff_addr, loongson_sysconf.restart_addr,
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loongson_sysconf.vgabios_addr);
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memset(loongson_sysconf.ecname, 0, 32);
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if (esys->has_ec)
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memcpy(loongson_sysconf.ecname, esys->ec_name, 32);
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loongson_sysconf.workarounds |= esys->workarounds;
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loongson_sysconf.nr_uarts = esys->nr_uarts;
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if (esys->nr_uarts < 1 || esys->nr_uarts > MAX_UARTS)
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loongson_sysconf.nr_uarts = 1;
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memcpy(loongson_sysconf.uarts, esys->uarts,
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sizeof(struct uart_device) * loongson_sysconf.nr_uarts);
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loongson_sysconf.nr_sensors = esys->nr_sensors;
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if (loongson_sysconf.nr_sensors > MAX_SENSORS)
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loongson_sysconf.nr_sensors = 0;
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if (loongson_sysconf.nr_sensors)
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memcpy(loongson_sysconf.sensors, esys->sensors,
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sizeof(struct sensor_device) * loongson_sysconf.nr_sensors);
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#endif
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if (cpu_clock_freq == 0) {
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processor_id = (¤t_cpu_data)->processor_id;
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switch (processor_id & PRID_REV_MASK) {
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case PRID_REV_LOONGSON2E:
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cpu_clock_freq = 533080000;
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break;
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case PRID_REV_LOONGSON2F:
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cpu_clock_freq = 797000000;
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break;
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case PRID_REV_LOONGSON3A_R1:
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case PRID_REV_LOONGSON3A_R2:
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cpu_clock_freq = 900000000;
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break;
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case PRID_REV_LOONGSON3B_R1:
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case PRID_REV_LOONGSON3B_R2:
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cpu_clock_freq = 1000000000;
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break;
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default:
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cpu_clock_freq = 100000000;
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break;
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}
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}
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pr_info("CpuClock = %u\n", cpu_clock_freq);
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}
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