static int zynqmp_r5_rproc_start(struct rproc *rproc)
{
struct device *dev = rproc->dev.parent;
struct platform_device *pdev = to_platform_device(dev);
struct zynqmp_r5_rproc_pdata *local = platform_get_drvdata(pdev);
dev_dbg(dev, "%s\n", __func__);
/* limit to two RPU support */
if (local->rpu_id == 0)
INIT_WORK(&local->workqueue, handle_event0);
else
INIT_WORK(&local->workqueue, handle_event1);
flush_cache_all();
remoteprocdev[local->rpu_id] = pdev;
/* Set up R5 */
local->rpu_ops->core_conf(local);
local->rpu_ops->en_reset(local, true);
local->rpu_ops->halt(local, true);
local->rpu_ops->bootdev(local);
/* Add delay before release from halt and reset */
udelay(500);
local->rpu_ops->en_reset(local, false);
local->rpu_ops->halt(local, false);
ipi_init(local);
return 0;
}
static int zynqmp_r5_rproc_start(struct rproc *rproc)
{
struct device *dev = rproc->dev.parent;
struct platform_device *pdev = to_platform_device(dev);
struct zynqmp_r5_rproc_pdata *local = platform_get_drvdata(pdev);
u32 bootaddr = 0;
int ret;
dev_dbg(dev, "%s\n", __func__);
/* limit to two RPU support */
if (local->rpu_id == 0)
INIT_WORK(&local->workqueue, handle_event0);
else
INIT_WORK(&local->workqueue, handle_event1);
remoteprocdev[local->rpu_id] = pdev;
/*
* Use memory barrier to make sure all write memory operations
* complemeted.
*/
wmb();
/* Set up R5 */
ret = get_firmware_entry_addr(local, &bootaddr);
if (ret < 0) {
dev_err(dev, "%s: failed to get RPU boot addr.\n", __func__);
return ret;
}
if (!bootaddr)
local->bootmem = TCM;
else
local->bootmem = OCM;
dev_info(dev, "RPU boot from %s.",
local->bootmem == OCM ? "OCM" : "TCM");
local->rpu_ops->core_conf(local);
local->rpu_ops->halt(local, true);
local->rpu_ops->en_reset(local, true);
local->rpu_ops->bootdev(local);
/* Add delay before release from halt and reset */
udelay(500);
local->rpu_ops->en_reset(local, false);
local->rpu_ops->halt(local, false);
ipi_init(local);
return 0;
}
void __init init_IRQ(void)
{
ipi_init();
}
void
cpu_attach_common(device_t self, struct cpu_info *ci)
{
const char * const xname = device_xname(self);
/*
* Cross link cpu_info and its device together
*/
ci->ci_dev = self;
self->dv_private = ci;
KASSERT(ci->ci_idepth == 0);
evcnt_attach_dynamic(&ci->ci_ev_count_compare,
EVCNT_TYPE_INTR, NULL, xname,
"int 5 (clock)");
evcnt_attach_dynamic(&ci->ci_ev_count_compare_missed,
EVCNT_TYPE_INTR, NULL, xname,
"int 5 (clock) missed");
evcnt_attach_dynamic(&ci->ci_ev_fpu_loads,
EVCNT_TYPE_MISC, NULL, xname,
"fpu loads");
evcnt_attach_dynamic(&ci->ci_ev_fpu_saves,
EVCNT_TYPE_MISC, NULL, xname,
"fpu saves");
evcnt_attach_dynamic(&ci->ci_ev_dsp_loads,
EVCNT_TYPE_MISC, NULL, xname,
"dsp loads");
evcnt_attach_dynamic(&ci->ci_ev_dsp_saves,
EVCNT_TYPE_MISC, NULL, xname,
"dsp saves");
evcnt_attach_dynamic(&ci->ci_ev_tlbmisses,
EVCNT_TYPE_TRAP, NULL, xname,
"tlb misses");
#ifdef MULTIPROCESSOR
if (ci != &cpu_info_store) {
/*
* Tail insert this onto the list of cpu_info's.
*/
KASSERT(cpuid_infos[ci->ci_cpuid] == NULL);
cpuid_infos[ci->ci_cpuid] = ci;
membar_producer();
}
KASSERT(cpuid_infos[ci->ci_cpuid] != NULL);
evcnt_attach_dynamic(&ci->ci_evcnt_synci_activate_rqst,
EVCNT_TYPE_MISC, NULL, xname,
"syncicache activate request");
evcnt_attach_dynamic(&ci->ci_evcnt_synci_deferred_rqst,
EVCNT_TYPE_MISC, NULL, xname,
"syncicache deferred request");
evcnt_attach_dynamic(&ci->ci_evcnt_synci_ipi_rqst,
EVCNT_TYPE_MISC, NULL, xname,
"syncicache ipi request");
evcnt_attach_dynamic(&ci->ci_evcnt_synci_onproc_rqst,
EVCNT_TYPE_MISC, NULL, xname,
"syncicache onproc request");
/*
* Initialize IPI framework for this cpu instance
*/
ipi_init(ci);
kcpuset_create(&ci->ci_multicastcpus, true);
kcpuset_create(&ci->ci_watchcpus, true);
kcpuset_create(&ci->ci_ddbcpus, true);
#endif
}
int kern_init(uint64_t mbmagic, uint64_t mbmem)
{
extern char edata[], end[];
memset(edata, 0, end - edata);
/* percpu variable for CPU0 is preallocated */
percpu_offsets[0] = __percpu_start;
cons_init(); // init the console
const char *message = "(THU.CST) os is loading ...";
kprintf("%s\n\n", message);
if(mbmagic == MULTIBOOT_BOOTLOADER_MAGIC){
kprintf("Multiboot dectected: param %p\n", (void*)mbmem);
mbmem2e820((Mbdata*)VADDR_DIRECT(mbmem));
parse_initrd((Mbdata*)VADDR_DIRECT(mbmem));
}
print_kerninfo();
/* get_cpu_var not available before tls_init() */
hz_init();
gdt_init(per_cpu_ptr(cpus, 0));
tls_init(per_cpu_ptr(cpus, 0));
acpitables_init();
lapic_init();
numa_init();
pmm_init_numa(); // init physical memory management, numa awared
/* map the lapic */
lapic_init_late();
//init the acpi stuff
idt_init(); // init interrupt descriptor table
pic_init(); // init interrupt controller
// acpi_conf_init();
percpu_init();
cpus_init();
#ifdef UCONFIG_ENABLE_IPI
ipi_init();
#endif
refcache_init();
vmm_init(); // init virtual memory management
sched_init(); // init scheduler
proc_init(); // init process table
sync_init(); // init sync struct
/* ext int */
ioapic_init();
acpi_init();
ide_init(); // init ide devices
#ifdef UCONFIG_SWAP
swap_init(); // init swap
#endif
fs_init(); // init fs
clock_init(); // init clock interrupt
mod_init();
trap_init();
//XXX put here?
bootaps();
intr_enable(); // enable irq interrupt
#ifdef UCONFIG_HAVE_LINUX_DDE36_BASE
dde_kit_init();
#endif
/* do nothing */
cpu_idle(); // run idle process
}
