Release 4.14 arch/powerpc/platforms/85xx/qemu_e500.c
/*
* Paravirt target for a generic QEMU e500 machine
*
* This is intended to be a flexible device-tree-driven platform, not fixed
* to a particular piece of hardware or a particular spec of virtual hardware,
* beyond the assumption of an e500-family CPU. Some things are still hardcoded
* here, such as MPIC, but this is a limitation of the current code rather than
* an interface contract with QEMU.
*
* Copyright 2012 Freescale Semiconductor Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <linux/kernel.h>
#include <linux/of_fdt.h>
#include <asm/machdep.h>
#include <asm/pgtable.h>
#include <asm/time.h>
#include <asm/udbg.h>
#include <asm/mpic.h>
#include <sysdev/fsl_soc.h>
#include <sysdev/fsl_pci.h>
#include "smp.h"
#include "mpc85xx.h"
void __init qemu_e500_pic_init(void)
{
struct mpic *mpic;
unsigned int flags = MPIC_BIG_ENDIAN | MPIC_SINGLE_DEST_CPU |
MPIC_ENABLE_COREINT;
mpic = mpic_alloc(NULL, 0, flags, 0, 256, " OpenPIC ");
BUG_ON(mpic == NULL);
mpic_init(mpic);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Scott Wood | 52 | 100.00% | 2 | 100.00% |
| Total | 52 | 100.00% | 2 | 100.00% |
static void __init qemu_e500_setup_arch(void)
{
ppc_md.progress("qemu_e500_setup_arch()", 0);
fsl_pci_assign_primary();
swiotlb_detect_4g();
#if defined(CONFIG_FSL_PCI) && defined(CONFIG_ZONE_DMA32)
/*
* Inbound windows don't cover the full lower 4 GiB
* due to conflicts with PCICSRBAR and outbound windows,
* so limit the DMA32 zone to 2 GiB, to allow consistent
* allocations to succeed.
*/
limit_zone_pfn(ZONE_DMA32, 1UL << (31 - PAGE_SHIFT));
#endif
mpc85xx_smp_init();
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Scott Wood | 50 | 92.59% | 2 | 50.00% |
| Jia Hongtao | 4 | 7.41% | 2 | 50.00% |
| Total | 54 | 100.00% | 4 | 100.00% |
/*
* Called very early, device-tree isn't unflattened
*/
static int __init qemu_e500_probe(void)
{
return !!of_machine_is_compatible("fsl,qemu-e500");
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Scott Wood | 16 | 94.12% | 1 | 50.00% |
| Benjamin Herrenschmidt | 1 | 5.88% | 1 | 50.00% |
| Total | 17 | 100.00% | 2 | 100.00% |
machine_arch_initcall(qemu_e500, mpc85xx_common_publish_devices);
define_machine(qemu_e500)
{
.name = "QEMU e500",
.probe = qemu_e500_probe,
.setup_arch = qemu_e500_setup_arch,
.init_IRQ = qemu_e500_pic_init,
#ifdef CONFIG_PCI
.pcibios_fixup_bus = fsl_pcibios_fixup_bus,
.pcibios_fixup_phb = fsl_pcibios_fixup_phb,
#endif
.get_irq = mpic_get_coreint_irq,
.calibrate_decr = generic_calibrate_decr,
.progress = udbg_progress,
};
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Scott Wood | 211 | 95.05% | 3 | 42.86% |
| Dongsheng Wang | 5 | 2.25% | 1 | 14.29% |
| Jia Hongtao | 5 | 2.25% | 2 | 28.57% |
| Benjamin Herrenschmidt | 1 | 0.45% | 1 | 14.29% |
| Total | 222 | 100.00% | 7 | 100.00% |
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.