diff options
| -rw-r--r-- | arch/ia64/sn/kernel/setup.c | 30 | ||||
| -rw-r--r-- | include/asm-ia64/sn/sn_feature_sets.h | 57 | ||||
| -rw-r--r-- | include/asm-ia64/sn/sn_sal.h | 36 |
3 files changed, 103 insertions, 20 deletions
diff --git a/arch/ia64/sn/kernel/setup.c b/arch/ia64/sn/kernel/setup.c index 7c7fe441d623..981928f35a8c 100644 --- a/arch/ia64/sn/kernel/setup.c +++ b/arch/ia64/sn/kernel/setup.c @@ -49,6 +49,7 @@ #include <asm/sn/clksupport.h> #include <asm/sn/sn_sal.h> #include <asm/sn/geo.h> +#include <asm/sn/sn_feature_sets.h> #include "xtalk/xwidgetdev.h" #include "xtalk/hubdev.h" #include <asm/sn/klconfig.h> @@ -99,6 +100,7 @@ EXPORT_SYMBOL(sn_region_size); int sn_prom_type; /* 0=hardware, 1=medusa/realprom, 2=medusa/fakeprom */ short physical_node_map[MAX_PHYSNODE_ID]; +static unsigned long sn_prom_features[MAX_PROM_FEATURE_SETS]; EXPORT_SYMBOL(physical_node_map); @@ -273,7 +275,10 @@ void __init sn_setup(char **cmdline_p) u32 version = sn_sal_rev(); extern void sn_cpu_init(void); - ia64_sn_plat_set_error_handling_features(); + ia64_sn_plat_set_error_handling_features(); // obsolete + ia64_sn_set_os_feature(OSF_MCA_SLV_TO_OS_INIT_SLV); + ia64_sn_set_os_feature(OSF_FEAT_LOG_SBES); + #if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE) /* @@ -316,16 +321,6 @@ void __init sn_setup(char **cmdline_p) printk("SGI SAL version %x.%02x\n", version >> 8, version & 0x00FF); - /* - * Confirm the SAL we're running on is recent enough... - */ - if (version < SN_SAL_MIN_VERSION) { - printk(KERN_ERR "This kernel needs SGI SAL version >= " - "%x.%02x\n", SN_SAL_MIN_VERSION >> 8, - SN_SAL_MIN_VERSION & 0x00FF); - panic("PROM version too old\n"); - } - master_nasid = boot_get_nasid(); status = @@ -481,6 +476,10 @@ void __init sn_cpu_init(void) if (nodepdaindr[0] == NULL) return; + for (i = 0; i < MAX_PROM_FEATURE_SETS; i++) + if (ia64_sn_get_prom_feature_set(i, &sn_prom_features[i]) != 0) + break; + cpuid = smp_processor_id(); cpuphyid = get_sapicid(); @@ -652,3 +651,12 @@ nasid_slice_to_cpuid(int nasid, int slice) return -1; } + +int sn_prom_feature_available(int id) +{ + if (id >= BITS_PER_LONG * MAX_PROM_FEATURE_SETS) + return 0; + return test_bit(id, sn_prom_features); +} +EXPORT_SYMBOL(sn_prom_feature_available); + diff --git a/include/asm-ia64/sn/sn_feature_sets.h b/include/asm-ia64/sn/sn_feature_sets.h new file mode 100644 index 000000000000..e68a80853d5d --- /dev/null +++ b/include/asm-ia64/sn/sn_feature_sets.h @@ -0,0 +1,57 @@ +#ifndef _ASM_IA64_SN_FEATURE_SETS_H +#define _ASM_IA64_SN_FEATURE_SETS_H + +/* + * SN PROM Features + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (c) 2005 Silicon Graphics, Inc. All rights reserved. + */ + + +#include <asm/types.h> +#include <asm/bitops.h> + +/* --------------------- PROM Features -----------------------------*/ +extern int sn_prom_feature_available(int id); + +#define MAX_PROM_FEATURE_SETS 2 + +/* + * The following defines features that may or may not be supported by the + * current PROM. The OS uses sn_prom_feature_available(feature) to test for + * the presence of a PROM feature. Down rev (old) PROMs will always test + * "false" for new features. + * + * Use: + * if (sn_prom_feature_available(PRF_FEATURE_XXX)) + * ... + */ + +/* + * Example: feature XXX + */ +#define PRF_FEATURE_XXX 0 + + + +/* --------------------- OS Features -------------------------------*/ + +/* + * The following defines OS features that are optionally present in + * the operating system. + * During boot, PROM is notified of these features via a series of calls: + * + * ia64_sn_set_os_feature(feature1); + * + * Once enabled, a feature cannot be disabled. + * + * By default, features are disabled unless explicitly enabled. + */ +#define OSF_MCA_SLV_TO_OS_INIT_SLV 0 +#define OSF_FEAT_LOG_SBES 1 + +#endif /* _ASM_IA64_SN_FEATURE_SETS_H */ diff --git a/include/asm-ia64/sn/sn_sal.h b/include/asm-ia64/sn/sn_sal.h index 27976d223186..231d0d04c3e8 100644 --- a/include/asm-ia64/sn/sn_sal.h +++ b/include/asm-ia64/sn/sn_sal.h @@ -80,6 +80,9 @@ #define SN_SAL_BTE_RECOVER 0x02000061 #define SN_SAL_IOIF_GET_PCI_TOPOLOGY 0x02000062 +#define SN_SAL_GET_PROM_FEATURE_SET 0x02000065 +#define SN_SAL_SET_OS_FEATURE_SET 0x02000066 + /* * Service-specific constants */ @@ -118,8 +121,8 @@ /* * Error Handling Features */ -#define SAL_ERR_FEAT_MCA_SLV_TO_OS_INIT_SLV 0x1 -#define SAL_ERR_FEAT_LOG_SBES 0x2 +#define SAL_ERR_FEAT_MCA_SLV_TO_OS_INIT_SLV 0x1 // obsolete +#define SAL_ERR_FEAT_LOG_SBES 0x2 // obsolete #define SAL_ERR_FEAT_MFR_OVERRIDE 0x4 #define SAL_ERR_FEAT_SBE_THRESHOLD 0xffff0000 @@ -152,12 +155,6 @@ sn_sal_rev(void) } /* - * Specify the minimum PROM revsion required for this kernel. - * Note that they're stored in hex format... - */ -#define SN_SAL_MIN_VERSION 0x0404 - -/* * Returns the master console nasid, if the call fails, return an illegal * value. */ @@ -336,7 +333,7 @@ ia64_sn_plat_cpei_handler(void) } /* - * Set Error Handling Features + * Set Error Handling Features (Obsolete) */ static inline u64 ia64_sn_plat_set_error_handling_features(void) @@ -1100,4 +1097,25 @@ ia64_sn_is_fake_prom(void) return (rv.status == 0); } +static inline int +ia64_sn_get_prom_feature_set(int set, unsigned long *feature_set) +{ + struct ia64_sal_retval rv; + + SAL_CALL_NOLOCK(rv, SN_SAL_GET_PROM_FEATURE_SET, set, 0, 0, 0, 0, 0, 0); + if (rv.status != 0) + return rv.status; + *feature_set = rv.v0; + return 0; +} + +static inline int +ia64_sn_set_os_feature(int feature) +{ + struct ia64_sal_retval rv; + + SAL_CALL_NOLOCK(rv, SN_SAL_SET_OS_FEATURE_SET, feature, 0, 0, 0, 0, 0, 0); + return rv.status; +} + #endif /* _ASM_IA64_SN_SN_SAL_H */ |