diff options
| -rw-r--r-- | arch/ia64/sn/kernel/io_init.c | 2 | ||||
| -rw-r--r-- | arch/ia64/sn/kernel/setup.c | 27 | ||||
| -rw-r--r-- | include/asm-ia64/sn/simulator.h | 13 | ||||
| -rw-r--r-- | include/asm-ia64/sn/sn_sal.h | 10 |
4 files changed, 37 insertions, 15 deletions
diff --git a/arch/ia64/sn/kernel/io_init.c b/arch/ia64/sn/kernel/io_init.c index 9e07f5463f2..783eb432384 100644 --- a/arch/ia64/sn/kernel/io_init.c +++ b/arch/ia64/sn/kernel/io_init.c @@ -384,7 +384,7 @@ static int __init sn_pci_init(void) extern void register_sn_procfs(void); #endif - if (!ia64_platform_is("sn2") || IS_RUNNING_ON_SIMULATOR()) + if (!ia64_platform_is("sn2") || IS_RUNNING_ON_FAKE_PROM()) return 0; /* diff --git a/arch/ia64/sn/kernel/setup.c b/arch/ia64/sn/kernel/setup.c index 3e5ba34ac2e..22e10d282c7 100644 --- a/arch/ia64/sn/kernel/setup.c +++ b/arch/ia64/sn/kernel/setup.c @@ -96,6 +96,7 @@ u8 sn_coherency_id; EXPORT_SYMBOL(sn_coherency_id); u8 sn_region_size; EXPORT_SYMBOL(sn_region_size); +int sn_prom_type; /* 0=hardware, 1=medusa/realprom, 2=medusa/fakeprom */ short physical_node_map[MAX_PHYSNODE_ID]; @@ -354,7 +355,7 @@ void __init sn_setup(char **cmdline_p) ia64_mark_idle = &snidle; - /* + /* * For the bootcpu, we do this here. All other cpus will make the * call as part of cpu_init in slave cpu initialization. */ @@ -401,7 +402,7 @@ static void __init sn_init_pdas(char **cmdline_p) nodepdaindr[cnode] = alloc_bootmem_node(NODE_DATA(cnode), sizeof(nodepda_t)); memset(nodepdaindr[cnode], 0, sizeof(nodepda_t)); - memset(nodepdaindr[cnode]->phys_cpuid, -1, + memset(nodepdaindr[cnode]->phys_cpuid, -1, sizeof(nodepdaindr[cnode]->phys_cpuid)); } @@ -431,7 +432,7 @@ static void __init sn_init_pdas(char **cmdline_p) } /* - * Initialize the per node hubdev. This includes IO Nodes and + * Initialize the per node hubdev. This includes IO Nodes and * headless/memless nodes. */ for (cnode = 0; cnode < numionodes; cnode++) { @@ -459,6 +460,14 @@ void __init sn_cpu_init(void) int i; static int wars_have_been_checked; + if (smp_processor_id() == 0 && IS_MEDUSA()) { + if (ia64_sn_is_fake_prom()) + sn_prom_type = 2; + else + sn_prom_type = 1; + printk("Running on medusa with %s PROM\n", (sn_prom_type == 1) ? "real" : "fake"); + } + memset(pda, 0, sizeof(pda)); if (ia64_sn_get_sn_info(0, &sn_hub_info->shub2, &sn_hub_info->nasid_bitmask, &sn_hub_info->nasid_shift, &sn_system_size, &sn_sharing_domain_size, &sn_partition_id, @@ -524,7 +533,7 @@ void __init sn_cpu_init(void) */ { u64 pio1[] = {SH1_PIO_WRITE_STATUS_0, 0, SH1_PIO_WRITE_STATUS_1, 0}; - u64 pio2[] = {SH2_PIO_WRITE_STATUS_0, SH2_PIO_WRITE_STATUS_1, + u64 pio2[] = {SH2_PIO_WRITE_STATUS_0, SH2_PIO_WRITE_STATUS_1, SH2_PIO_WRITE_STATUS_2, SH2_PIO_WRITE_STATUS_3}; u64 *pio; pio = is_shub1() ? pio1 : pio2; @@ -556,6 +565,10 @@ static void __init scan_for_ionodes(void) int nasid = 0; lboard_t *brd; + /* fakeprom does not support klgraph */ + if (IS_RUNNING_ON_FAKE_PROM()) + return; + /* Setup ionodes with memory */ for (nasid = 0; nasid < MAX_PHYSNODE_ID; nasid += 2) { char *klgraph_header; @@ -567,8 +580,6 @@ static void __init scan_for_ionodes(void) cnodeid = -1; klgraph_header = __va(ia64_sn_get_klconfig_addr(nasid)); if (!klgraph_header) { - if (IS_RUNNING_ON_SIMULATOR()) - continue; BUG(); /* All nodes must have klconfig tables! */ } cnodeid = nasid_to_cnodeid(nasid); @@ -634,8 +645,8 @@ int nasid_slice_to_cpuid(int nasid, int slice) { long cpu; - - for (cpu=0; cpu < NR_CPUS; cpu++) + + for (cpu=0; cpu < NR_CPUS; cpu++) if (cpuid_to_nasid(cpu) == nasid && cpuid_to_slice(cpu) == slice) return cpu; diff --git a/include/asm-ia64/sn/simulator.h b/include/asm-ia64/sn/simulator.h index 78eb4f869c8..cf770e246af 100644 --- a/include/asm-ia64/sn/simulator.h +++ b/include/asm-ia64/sn/simulator.h @@ -10,16 +10,17 @@ #include <linux/config.h> -#ifdef CONFIG_IA64_SGI_SN_SIM - #define SNMAGIC 0xaeeeeeee8badbeefL -#define IS_RUNNING_ON_SIMULATOR() ({long sn; asm("mov %0=cpuid[%1]" : "=r"(sn) : "r"(2)); sn == SNMAGIC;}) - -#define SIMULATOR_SLEEP() asm("nop.i 0x8beef") +#define IS_MEDUSA() ({long sn; asm("mov %0=cpuid[%1]" : "=r"(sn) : "r"(2)); sn == SNMAGIC;}) +#ifdef CONFIG_IA64_SGI_SN_SIM +#define SIMULATOR_SLEEP() asm("nop.i 0x8beef") +#define IS_RUNNING_ON_SIMULATOR() (sn_prom_type) +#define IS_RUNNING_ON_FAKE_PROM() (sn_prom_type == 2) +extern int sn_prom_type; /* 0=hardware, 1=medusa/realprom, 2=medusa/fakeprom */ #else - #define IS_RUNNING_ON_SIMULATOR() (0) +#define IS_RUNNING_ON_FAKE_PROM() (0) #define SIMULATOR_SLEEP() #endif diff --git a/include/asm-ia64/sn/sn_sal.h b/include/asm-ia64/sn/sn_sal.h index eb0395ad0d6..1455375d2ce 100644 --- a/include/asm-ia64/sn/sn_sal.h +++ b/include/asm-ia64/sn/sn_sal.h @@ -132,6 +132,8 @@ #define SALRET_INVALID_ARG (-2) #define SALRET_ERROR (-3) +#define SN_SAL_FAKE_PROM 0x02009999 + /** * sn_sal_rev_major - get the major SGI SAL revision number @@ -1105,4 +1107,12 @@ ia64_sn_bte_recovery(nasid_t nasid) return (int) rv.status; } +static inline int +ia64_sn_is_fake_prom(void) +{ + struct ia64_sal_retval rv; + SAL_CALL_NOLOCK(rv, SN_SAL_FAKE_PROM, 0, 0, 0, 0, 0, 0, 0); + return (rv.status == 0); +} + #endif /* _ASM_IA64_SN_SN_SAL_H */ |