#include <linux/smp.h>
#include <linux/param.h>
#include <linux/string.h>
-#include <linux/initrd.h>
#include <linux/seq_file.h>
#include <linux/kdev_t.h>
#include <linux/major.h>
#include <linux/root_dev.h>
#include <linux/kernel.h>
+#include <linux/hrtimer.h>
+#include <linux/tick.h>
#include <asm/processor.h>
#include <asm/machdep.h>
#include <asm/time.h>
#include <asm/paca.h>
#include <asm/cache.h>
-#include <asm/sections.h>
#include <asm/abs_addr.h>
#include <asm/iseries/hv_lp_config.h>
#include <asm/iseries/hv_call_event.h>
#include "main_store.h"
#include "call_sm.h"
#include "call_hpt.h"
+#include "pci.h"
#ifdef DEBUG
#define DBG(fmt...) udbg_printf(fmt)
static unsigned long build_iSeries_Memory_Map(void);
static void iseries_shared_idle(void);
static void iseries_dedicated_idle(void);
-#ifdef CONFIG_PCI
-extern void iSeries_pci_final_fixup(void);
-#else
-static void iSeries_pci_final_fixup(void) { }
-#endif
-extern int rd_size; /* Defined in drivers/block/rd.c */
-
-extern unsigned long iSeries_recal_tb;
-extern unsigned long iSeries_recal_titan;
struct MemoryBlock {
unsigned long absStart;
* correctly.
*/
mb_array[0].logicalStart = 0;
- mb_array[0].logicalEnd = 0x100000000;
+ mb_array[0].logicalEnd = 0x100000000UL;
mb_array[0].absStart = 0;
- mb_array[0].absEnd = 0x100000000;
+ mb_array[0].absEnd = 0x100000000UL;
if (holeSize) {
numMemoryBlocks = 2;
- holeStart = holeStart & 0x000fffffffffffff;
+ holeStart = holeStart & 0x000fffffffffffffUL;
holeStart = addr_to_chunk(holeStart);
holeFirstChunk = holeStart;
holeSize = addr_to_chunk(holeSize);
mb_array[0].logicalEnd = holeFirstChunk;
mb_array[0].absEnd = holeFirstChunk;
mb_array[1].logicalStart = holeFirstChunk;
- mb_array[1].logicalEnd = 0x100000000 - holeSizeChunks;
+ mb_array[1].logicalEnd = 0x100000000UL - holeSizeChunks;
mb_array[1].absStart = holeFirstChunk + holeSizeChunks;
- mb_array[1].absEnd = 0x100000000;
+ mb_array[1].absEnd = 0x100000000UL;
}
return numMemoryBlocks;
}
mb_array[i].logicalEnd,
mb_array[i].absStart, mb_array[i].absEnd);
mb_array[i].absStart = addr_to_chunk(mb_array[i].absStart &
- 0x000fffffffffffff);
+ 0x000fffffffffffffUL);
mb_array[i].absEnd = addr_to_chunk(mb_array[i].absEnd &
- 0x000fffffffffffff);
+ 0x000fffffffffffffUL);
mb_array[i].logicalStart =
addr_to_chunk(mb_array[i].logicalStart);
mb_array[i].logicalEnd = addr_to_chunk(mb_array[i].logicalEnd);
{
DBG(" -> iSeries_init_early()\n");
-#if defined(CONFIG_BLK_DEV_INITRD)
- /*
- * If the init RAM disk has been configured and there is
- * a non-zero starting address for it, set it up
- */
- if (naca.xRamDisk) {
- initrd_start = (unsigned long)__va(naca.xRamDisk);
- initrd_end = initrd_start + naca.xRamDiskSize * HW_PAGE_SIZE;
- initrd_below_start_ok = 1; // ramdisk in kernel space
- ROOT_DEV = Root_RAM0;
- if (((rd_size * 1024) / HW_PAGE_SIZE) < naca.xRamDiskSize)
- rd_size = (naca.xRamDiskSize * HW_PAGE_SIZE) / 1024;
- } else
-#endif /* CONFIG_BLK_DEV_INITRD */
- {
- /* ROOT_DEV = MKDEV(VIODASD_MAJOR, 1); */
- }
-
- iSeries_recal_tb = get_tb();
- iSeries_recal_titan = HvCallXm_loadTod();
+ /* Snapshot the timebase, for use in later recalibration */
+ iSeries_time_init_early();
/*
* Initialize the DMA/TCE management
mf_init();
- /* If we were passed an initrd, set the ROOT_DEV properly if the values
- * look sensible. If not, clear initrd reference.
- */
-#ifdef CONFIG_BLK_DEV_INITRD
- if (initrd_start >= KERNELBASE && initrd_end >= KERNELBASE &&
- initrd_end > initrd_start)
- ROOT_DEV = Root_RAM0;
- else
- initrd_start = initrd_end = 0;
-#endif /* CONFIG_BLK_DEV_INITRD */
-
DBG(" <- iSeries_init_early()\n");
}
};
EXPORT_SYMBOL(mschunks_map);
-void mschunks_alloc(unsigned long num_chunks)
+static void mschunks_alloc(unsigned long num_chunks)
{
klimit = _ALIGN(klimit, sizeof(u32));
mschunks_map.mapping = (u32 *)klimit;
itVpdAreas.xSlicMaxLogicalProcs);
printk("Max physical processors = %d\n",
itVpdAreas.xSlicMaxPhysicalProcs);
+
+ iSeries_pcibios_init();
}
static void iSeries_show_cpuinfo(struct seq_file *m)
static int __init iSeries_src_init(void)
{
/* clear the progress line */
- ppc_md.progress(" ", 0xffff);
+ if (firmware_has_feature(FW_FEATURE_ISERIES))
+ ppc_md.progress(" ", 0xffff);
return 0;
}
static void iseries_shared_idle(void)
{
while (1) {
+ tick_nohz_stop_sched_tick(1);
while (!need_resched() && !hvlpevent_is_pending()) {
local_irq_disable();
ppc64_runlatch_off();
}
ppc64_runlatch_on();
+ tick_nohz_restart_sched_tick();
if (hvlpevent_is_pending())
process_iSeries_events();
set_thread_flag(TIF_POLLING_NRFLAG);
while (1) {
+ tick_nohz_stop_sched_tick(1);
if (!need_resched()) {
while (!need_resched()) {
ppc64_runlatch_off();
}
ppc64_runlatch_on();
+ tick_nohz_restart_sched_tick();
preempt_enable_no_resched();
schedule();
preempt_disable();
}
}
-#ifndef CONFIG_PCI
-void __init iSeries_init_IRQ(void) { }
-#endif
+static void __iomem *iseries_ioremap(phys_addr_t address, unsigned long size,
+ unsigned long flags)
+{
+ return (void __iomem *)address;
+}
-/*
- * iSeries has no legacy IO, anything calling this function has to
- * fail or bad things will happen
- */
-static int iseries_check_legacy_ioport(unsigned int baseport)
+static void iseries_iounmap(volatile void __iomem *token)
{
- return -ENODEV;
}
static int __init iseries_probe(void)
return 0;
hpte_init_iSeries();
+ /* iSeries does not support 16M pages */
+ cur_cpu_spec->cpu_features &= ~CPU_FTR_16M_PAGE;
return 1;
}
define_machine(iseries) {
- .name = "iSeries",
- .setup_arch = iSeries_setup_arch,
- .show_cpuinfo = iSeries_show_cpuinfo,
- .init_IRQ = iSeries_init_IRQ,
- .get_irq = iSeries_get_irq,
- .init_early = iSeries_init_early,
- .pcibios_fixup = iSeries_pci_final_fixup,
- .restart = mf_reboot,
- .power_off = mf_power_off,
- .halt = mf_power_off,
- .get_boot_time = iSeries_get_boot_time,
- .set_rtc_time = iSeries_set_rtc_time,
- .get_rtc_time = iSeries_get_rtc_time,
- .calibrate_decr = generic_calibrate_decr,
- .progress = iSeries_progress,
- .probe = iseries_probe,
- .check_legacy_ioport = iseries_check_legacy_ioport,
+ .name = "iSeries",
+ .setup_arch = iSeries_setup_arch,
+ .show_cpuinfo = iSeries_show_cpuinfo,
+ .init_IRQ = iSeries_init_IRQ,
+ .get_irq = iSeries_get_irq,
+ .init_early = iSeries_init_early,
+ .pcibios_fixup = iSeries_pci_final_fixup,
+ .pcibios_fixup_resources= iSeries_pcibios_fixup_resources,
+ .restart = mf_reboot,
+ .power_off = mf_power_off,
+ .halt = mf_power_off,
+ .get_boot_time = iSeries_get_boot_time,
+ .set_rtc_time = iSeries_set_rtc_time,
+ .get_rtc_time = iSeries_get_rtc_time,
+ .calibrate_decr = generic_calibrate_decr,
+ .progress = iSeries_progress,
+ .probe = iseries_probe,
+ .ioremap = iseries_ioremap,
+ .iounmap = iseries_iounmap,
/* XXX Implement enable_pmcs for iSeries */
};
{
unsigned long phys_mem_size;
+ /* Identify CPU type. This is done again by the common code later
+ * on but calling this function multiple times is fine.
+ */
+ identify_cpu(0, mfspr(SPRN_PVR));
+
powerpc_firmware_features |= FW_FEATURE_ISERIES;
powerpc_firmware_features |= FW_FEATURE_LPAR;