* 2 of the License, or (at your option) any later version.
*/
+#undef DEBUG
+
#include <linux/config.h>
#include <linux/init.h>
#include <linux/threads.h>
#include <asm/pgtable.h>
#include <asm/mmu_context.h>
#include <asm/cputable.h>
+#include <asm/sections.h>
#include <asm/time.h>
#include "iSeries_setup.h"
#include <asm/iSeries/iSeries_proc.h>
#include <asm/iSeries/mf.h>
+extern void hvlog(char *fmt, ...);
+
+#ifdef DEBUG
+#define DBG(fmt...) hvlog(fmt)
+#else
+#define DBG(fmt...)
+#endif
+
/* Function Prototypes */
-extern void abort(void);
extern void ppcdbg_initialize(void);
-extern void iSeries_pcibios_init(void);
extern void tce_init_iSeries(void);
static void build_iSeries_Memory_Map(void);
static void setup_iSeries_cache_sizes(void);
static void iSeries_bolt_kernel(unsigned long saddr, unsigned long eaddr);
-extern void build_valid_hpte(unsigned long vsid, unsigned long ea, unsigned long pa,
- pte_t *ptep, unsigned hpteflags, unsigned bolted);
-static void iSeries_setup_dprofile(void);
extern void iSeries_setup_arch(void);
extern void iSeries_pci_final_fixup(void);
static unsigned long tbFreqMhz;
static unsigned long tbFreqMhzHundreths;
-unsigned long dprof_shift;
-unsigned long dprof_len;
-unsigned int *dprof_buffer;
-
int piranha_simulator;
-int boot_cpuid;
-
-extern char _end[];
-
extern int rd_size; /* Defined in drivers/block/rd.c */
extern unsigned long klimit;
extern unsigned long embedded_sysmap_start;
return mem_blocks;
}
-void __init iSeries_init_early(void)
+static void __init iSeries_parse_cmdline(void)
+{
+ char *p, *q;
+
+ /* copy the command line parameter from the primary VSP */
+ HvCallEvent_dmaToSp(cmd_line, 2 * 64* 1024, 256,
+ HvLpDma_Direction_RemoteToLocal);
+
+ p = cmd_line;
+ q = cmd_line + 255;
+ while(p < q) {
+ if (!*p || *p == '\n')
+ break;
+ ++p;
+ }
+ *p = 0;
+}
+
+/*static*/ void __init iSeries_init_early(void)
{
+ DBG(" -> iSeries_init_early()\n");
+
ppcdbg_initialize();
#if defined(CONFIG_BLK_DEV_INITRD)
iSeries_recal_tb = get_tb();
iSeries_recal_titan = HvCallXm_loadTod();
- ppc_md.setup_arch = iSeries_setup_arch;
- ppc_md.get_cpuinfo = iSeries_get_cpuinfo;
- ppc_md.init_IRQ = iSeries_init_IRQ;
- ppc_md.get_irq = iSeries_get_irq;
- ppc_md.init = NULL;
-
- ppc_md.pcibios_fixup = iSeries_pci_final_fixup;
-
- ppc_md.restart = iSeries_restart;
- ppc_md.power_off = iSeries_power_off;
- ppc_md.halt = iSeries_halt;
-
- ppc_md.get_boot_time = iSeries_get_boot_time;
- ppc_md.set_rtc_time = iSeries_set_rtc_time;
- ppc_md.get_rtc_time = iSeries_get_rtc_time;
- ppc_md.calibrate_decr = iSeries_calibrate_decr;
- ppc_md.progress = iSeries_progress;
+ /*
+ * Cache sizes must be initialized before hpte_init_iSeries is called
+ * as the later need them for flush_icache_range()
+ */
+ setup_iSeries_cache_sizes();
+ /*
+ * Initialize the hash table management pointers
+ */
hpte_init_iSeries();
+
+ /*
+ * Initialize the DMA/TCE management
+ */
tce_init_iSeries();
/*
* AS/400 absolute addresses
*/
build_iSeries_Memory_Map();
- setup_iSeries_cache_sizes();
+
/* Initialize machine-dependency vectors */
#ifdef CONFIG_SMP
smp_init_iSeries();
#endif
if (itLpNaca.xPirEnvironMode == 0)
piranha_simulator = 1;
-}
-
-void __init iSeries_init(unsigned long r3, unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7)
-{
- char *p, *q;
/* Associate Lp Event Queue 0 with processor 0 */
HvCallEvent_setLpEventQueueInterruptProc(0, 0);
- /* copy the command line parameter from the primary VSP */
- HvCallEvent_dmaToSp(cmd_line, 2 * 64* 1024, 256,
- HvLpDma_Direction_RemoteToLocal);
-
- p = cmd_line;
- q = cmd_line + 255;
- while( p < q ) {
- if (!*p || *p == '\n')
- break;
- ++p;
- }
- *p = 0;
-
- if (strstr(cmd_line, "dprofile=")) {
- for (q = cmd_line; (p = strstr(q, "dprofile=")) != 0; ) {
- unsigned long size, new_klimit;
-
- q = p + 9;
- if ((p > cmd_line) && (p[-1] != ' '))
- continue;
- dprof_shift = simple_strtoul(q, &q, 0);
- dprof_len = (unsigned long)_etext -
- (unsigned long)_stext;
- dprof_len >>= dprof_shift;
- size = ((dprof_len * sizeof(unsigned int)) +
- (PAGE_SIZE-1)) & PAGE_MASK;
- dprof_buffer = (unsigned int *)((klimit +
- (PAGE_SIZE-1)) & PAGE_MASK);
- new_klimit = ((unsigned long)dprof_buffer) + size;
- lmb_reserve(__pa(klimit), (new_klimit-klimit));
- klimit = new_klimit;
- memset(dprof_buffer, 0, size);
- }
- }
-
- iSeries_setup_dprofile();
-
mf_init();
mf_initialized = 1;
mb();
+
+ /* 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 */
+
+
+ iSeries_parse_cmdline();
+
+ DBG(" <- iSeries_init_early()\n");
}
/*
}
}
-void iSeries_fixup_klimit(void)
+static void __init iSeries_fixup_klimit(void)
{
/*
* Change klimit to take into account any ram disk
}
}
-static void iSeries_setup_dprofile(void)
-{
- if (dprof_buffer) {
- unsigned i;
-
- for (i = 0; i < NR_CPUS; ++i) {
- paca[i].prof_shift = dprof_shift;
- paca[i].prof_len = dprof_len - 1;
- paca[i].prof_buffer = dprof_buffer;
- paca[i].prof_stext = (unsigned *)_stext;
- mb();
- paca[i].prof_enabled = 1;
- }
- }
-}
-
int __init iSeries_src_init(void)
{
/* clear the progress line */
}
late_initcall(iSeries_src_init);
+
+void __init iSeries_early_setup(void)
+{
+ iSeries_fixup_klimit();
+
+ ppc_md.setup_arch = iSeries_setup_arch;
+ ppc_md.get_cpuinfo = iSeries_get_cpuinfo;
+ ppc_md.init_IRQ = iSeries_init_IRQ;
+ ppc_md.get_irq = iSeries_get_irq;
+ ppc_md.init_early = iSeries_init_early,
+
+ ppc_md.pcibios_fixup = iSeries_pci_final_fixup;
+
+ ppc_md.restart = iSeries_restart;
+ ppc_md.power_off = iSeries_power_off;
+ ppc_md.halt = iSeries_halt;
+
+ ppc_md.get_boot_time = iSeries_get_boot_time;
+ ppc_md.set_rtc_time = iSeries_set_rtc_time;
+ ppc_md.get_rtc_time = iSeries_get_rtc_time;
+ ppc_md.calibrate_decr = iSeries_calibrate_decr;
+ ppc_md.progress = iSeries_progress;
+}
+
git://git.onelab.eu / linux-2.6.git / blobdiff